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"inrush" Definitions
  1. a sudden flow towards the inside

128 Sentences With "inrush"

How to use inrush in a sentence? Find typical usage patterns (collocations)/phrases/context for "inrush" and check conjugation/comparative form for "inrush". Mastering all the usages of "inrush" from sentence examples published by news publications.

There are now about 3m EU migrants in Britain, the latest inrush from southern Europe.
The unprecedented inrush of people into Sea Ceiling cities has brought with it radical changes to governance.
The sound is produced by the inrush of air into a small pediatric airway after a coughing paroxysm, and it can be truly terrifying to hear.
In any case, the annual inrush of vessels from North Korea has raised security concerns in Japan, prompting authorities to step up their patrols for wayward boats and their crews—dead or alive.
A date in June was favoured because it gave less time to the Leave campaign, was close to Mr Cameron's unexpected election win last May and would come before the summer inrush of migrants to Europe.
But, while many expect Guyana's long-awaited debut as an oil exporter to radically transform the country's social and economic development, some have expressed concern about the risks associated with such a sudden inrush of revenues.
If the Le Touquet treaty went, or if Britain were to set up a local asylum-processing centre (another idea of Mr Bertrand's), the news that it had become easier to cross the Channel would quickly spread, triggering a potentially huge inrush of migrants that would expand, not shrink, the camps around Calais.
To avoid magnetic inrush, only for transformers with an air gap in the core, the inductive load needs to be synchronously connected near a supply voltage peak, in contrast with the zero-voltage switching, which is desirable to minimize sharp-edged current transients with resistive loads such as high-power heaters. But for toroidal transformers only a premagnetising procedure before switching on allows to start those transformers without any inrush-current peak. An example of an inrush current transient during a 100 VA toroid transformer energization. Inrush peak around 50 times of nominal current Inrush current can be divided in three categories: :Energization inrush current result of re-energization of transformer.
An inrush current limiter is a component used to limit inrush current to avoid gradual damage to components and avoid blowing fuses or tripping circuit breakers. Negative temperature coefficient (NTC) thermistors and fixed resistors are often used to limit inrush current. NTC thermistors can be used as inrush-current limiting devices in power supply circuits when added in series with the circuit being protected. They present a higher resistance initially, which prevents large currents from flowing at turn-on.
Fixed resistors are also widely used to limit inrush current. These are inherently less efficient, since the resistance never falls from the value required to limit the inrush current. Consequently they are generally chosen for lower power circuitry, where the additional ongoing power waste is minor. Inrush limiting resistors are much cheaper than thermistors.
Temporarily introducing a high resistance between the input power and rectifier can increase the resistance of the powerup, leading to reducing the inrush current. Using an inrush current limiter for this purpose helps, as it can provide the initial resistance needed.
The points of inrush, the tideways of these pandour Deluges seem to be mainly three.
A resistor in series with the line can be used to limit the current charging input capacitors. However, this approach is not very efficient, especially in high-power devices, since the resistor will have a voltage drop and dissipate some power. Inrush current can also be reduced by inrush current limiters. Negative-temperature-coefficient (NTC) thermistors are commonly used in switching power supplies, motor drives and audio equipment to prevent damage caused by inrush current.
An example of inrush current transients during capacitor bank energization Inrush current, input surge current, or switch-on surge is the maximal instantaneous input current drawn by an electrical device when first turned on. Alternating-current electric motors and transformers may draw several times their normal full-load current when first energized, for a few cycles of the input waveform. Power converters also often have inrush currents much higher than their steady-state currents, due to the charging current of the input capacitance. The selection of over-current-protection devices such as fuses and circuit breakers is made more complicated when high inrush currents must be tolerated.
The residual flux in this case can be zero or depending on energization timing. :Recovery inrush current flow when transformer voltage is restored after having been reduced by system disturbance. :Sympathetic inrush current flow when multiple transformer connected in same line and one of them energized.
In well-preserved tins he would have found, not an outrush of gas, but an inrush of water.
An inrush current limiter is a device or group of devices used to limit inrush current. Negative temperature coefficient (NTC) thermistors and resistors are two of the simplest options, with cool-down time and power dissipation being their main drawbacks, respectively. More complex solutions can be used when design constraints make simpler options impractical.
I must bear witness to my conviction that we are beholding a tremendous inrush or uprush of good into man and his world.
They can also be used to protect other system components from high current levels and to limit the inrush current when starting a large motor.
After a variable time delay (to reduce simultaneous inrush current), over-voltage relays will re-shut the track circuit breakers on the non-faulted track.
Upon energization of the lines there could be high inrush current which may lead the fault indicators to false operation. Some fault indicators can block inrush current. Advanced fault indicators should monitor the live line to distinguish fault currents from usual current surges. They operate only after making sure of the feeding circuit breaker/fuse has cut the power flow and the line is de-energized.
The over-current protection must react quickly to overload or short-circuit faults but must not interrupt the circuit when the (usually harmless) inrush current flows.
NTC materials are used to create inrush current limiters (because they present higher initial resistance until the current limiter reaches quiescent temperature), temperature sensors and thermistors.
Whenever this happens fluid rushes in from both sides. This cyclic process of lift-off, bursting and inrush of fluid exerts a shear stress on the sediment surface, which ultimately finds its expression in the spatial arrangement of the sediment grains. After all it is this lateral inrush of fluid, which “sweeps up” the grains in the grooves and redeposits them in long parallel ridges underneath the lifting turbulences.
They are found in most compact fluorescent lamps (light bulbs). They can be switched out of the circuit using a relay or MOSFET after inrush current is complete.
A BMS may have a circuit that can check whether a relay is already closed before precharging (due to welding for example) to prevent inrush currents to occur.
Electrical soft starters can be any control system that reduces the torque by temporarily reducing the voltage or current input, or a device that temporarily alters how the motor is connected in the electric circuit. Digital Soft Starter Across-the line starting of induction motors is accompanied by inrush currents up to 7-10 times higher than running current (inrush current can reach levels of 10 -15 times for higher efficiency motors), and starting torque up to 3 times higher than running torque. The increased torque results in sudden mechanical stress on the machine which leads to a reduced service life. Moreover, the high inrush current stresses the power supply, which may lead to voltage dips.
Active PFC is more complex and can achieve higher PF, up to 99%. The first active PFC circuits just delayed the inrush. Newer ones are working as an input and output condition-controlled step-up converter, supplying a single 400 V filter capacitor from a wide-range input source, usually between 80 and 240 V. Newer PFC circuits also replace the NTC-based inrush current limiter, which is an expensive part previously located next to the fuse.
Peak inrush current into a high voltage capacitor upon power up can stress the component, reducing its reliability. Pre-charge of the powerline voltages in a high voltage DC application is a preliminary mode which limits the inrush current during the power up procedure. A high-voltage system with a large capacitive load can be exposed to high electric current during initial turn- on. This current, if not limited, can cause considerable stress or damage to the system components.
The inrush may be as much as 14 times the steady-state current and may persist for a few milliseconds for smaller lamps up to several seconds for lamps of 500 watts or more. Ralph Fehr, Industrial Power Distribution, John Wiley & Sons, 2015 , pages 8–73. (Non-graphitized) carbon- filament lamps, rarely used now, have a negative temperature coefficient and draw more current as they warm up; an "inrush" current is not found with these types.
Its resistance begins to drop, and a relatively small current flow charges the input capacitors. After the capacitors in the power supply become charged, the self-heated inrush current limiter offers little resistance in the circuit, with a low voltage drop with respect to the total voltage drop of the circuit. A disadvantage is that immediately after the device is switched off, the NTC resistor is still hot and has a low resistance. It cannot limit the inrush current unless it cools for more than 1 minute to get a higher resistance.
A typical application of inrush current limiters is in the input stage of non-power factor corrected switching supplies, to reduce the initial surge of current from the line input to the reservoir capacitor. The most popular application is the inrush protection of the AC current in switching power supplies (SPS). The primary reason for having surge current suppression in a SPS is to protect the diode bridge rectifier as the input or charging capacitor is initially charged. This capacitor draws significant current during the first half AC cycle and can subject the components in line with the capacitor to excessive current.
The inrush current of an incandescent lamp causes a bench power supply to limit its output current. Metals have a positive temperature coefficient of resistance; they have lower resistance when cold. Any electrical load that contains a substantial component of metallic resistive heating elements, such as an electric kiln or a bank of tungsten-filament incandescent bulbs, will draw a high current until the metallic element reaches operating temperature. For example, wall switches intended to control incandescent lamps will have a "T" rating, indicating that they can safely control circuits with the large inrush currents of incandescent lamps.
By 23 December, after it had progressed , progress was delayed after a sudden inrush of water; and only one month later on 26 January 1808, at , a more serious inrush occurred. The tunnel was flooded; Trevithick, being the last to leave, was nearly drowned. Clay was dumped on the river bed to seal the hole, and the tunnel was drained, but mining was now more difficult. Progress stalled, and a few of the directors attempted to discredit Trevithick, but the quality of his work was eventually upheld by two colliery engineers from the North of England.
The Newton Chikli Colliery disaster, Chhindwara (M.P.), India occurred on 10 December 1954. This incident occurred due to flooding of the mine caused by inrush of water from old workings of the same mine. Total 63 persons were entrapped and got drowned.
In 1851, Bignall End was described as having "a number of scattered houses and cottages, one mile E of Audley, and several collieries".History of Audley In January 1895, an inrush of water into Audley Colliery resulted in the deaths of 77 miners.
On Thursday, 7 September 1950 at approximately 7.30 pm – during the afternoon shift – a large volume of liquefied peat or moss broke down into the No. 5 Heading section of the 'Main coal' seam in the South Boig district of the mine. The liquid matter had come from a glaciated lake just below the surface. The inrush occurred at the point where the No. 5 Heading (or Drift) was being driven towards the surface at a gradient of 1 in 2. The inrush of liquid rushed back down the incline filling miles of underground workings and sealing off all escape routes to the surface.
It is well known as NTC Thermistor and varistor manufacturer in Taiwan, as well as the first publicly listed cooperation in Taiwan's protective component industry. With the PC industry rising from the 1980s in Taiwan, its NTC thermistor is adapted as the inrush current limiter in switched-mode power supply to suppress the inrush current when power supply turns on, and the varistor protects the circuit from damaged by surge current occasionally occurred in the electricity network. This earns THINKING a role in the supply chain of the switched-mode power supply industry and listed into top 1,000 manufacturers in Taiwan by the press.
Like other musk turtle species, S. salvinii is carnivorous, eating various species of fishes, crustaceans, smaller turtles, insects, mollusks, and carrion. The giant musk turtle's feeding technique is to open its mouth rapidly leading to a powerful inrush of water which sucks the prey into its mouth.
This internal DC resistance Ri should not be confused with the internal AC resistance called equivalent series resistance (ESR) normally specified for capacitors. It is measured at 1 kHz. ESR is much smaller than DC resistance. ESR is not relevant for calculating superconductor inrush currents or other peak currents.
Another disadvantage is that the NTC thermistor is not short-circuit-proof. Another way to avoid the transformer inrush current is a "transformer switching relay". This does not need time for cool down. It can also deal with power-line half-wave voltage dips and is short-circuit-proof.
A leak dry suit leak can be anything from a trickle of water through the cuff seal to a rapid escape of gas through a torn neck seal or damaged (or open) zipper followed by ingress of a large volume of water. There are two aspects to a catastrophic flood which put the diver at risk. Damage to the lower part of the suit can cause a sudden inrush of very cold water for winter users, or an inrush of contaminated water or chemicals for hazmat divers. This may not materially affect buoyancy during a dive, and the urgency of dealing with the problem is mainly due to the hypothermia or contamination hazard.
A leak dry suit leak can be anything from a trickle of water through the cuff seal to a rapid escape of gas through a torn neck seal or damaged (or open) zipper followed by ingress of a large volume of water. There are two aspects to a catastrophic flood which put the diver at risk. Damage to the lower part of the suit can cause a sudden inrush of very cold water for winter users, or an inrush of contaminated water or chemicals for hazmat divers. This may not materially affect buoyancy during a dive, and the urgency of dealing with the problem is mainly due to the hypothermia or contamination hazard.
A thermistor is a thermally-sensitive resistor with a resistance that changes significantly and predictably as a result of temperature changes. The resistance of an NTC thermistor decreases as its temperature increases.NTC thermistors at Temperatures.com. As the inrush current limiter self-heats, the current begins to flow through it and warm it.
Where a large inrush current and high starting torque can be permitted, the motor can be started across the line, by applying full line voltage to the terminals (direct-on-line, DOL). Where it is necessary to limit the starting inrush current (where the motor is large compared with the short-circuit capacity of the supply), the motor is started at reduced voltage using either series inductors, an autotransformer, thyristors, or other devices. A technique sometimes used is star-delta (YΔ) starting, where the motor coils are initially connected in star configuration for acceleration of the load, then switched to delta configuration when the load is up to speed. This technique is more common in Europe than in North America.
As a result the inrush current is reduced. Another important advantage over squirrel-cage motors is higher starting torque. The construction of slip ring induction motor is quite different compared to other induction motor. Slip rings Induction motor provides some advantages like provides high starting torque, low starting current and it improves the power factor.
The simplest inrush-current limiting system, used in many consumer electronics devices, is a NTC resistor. When cold, its high resistance allows a small current to pre-charge the reservoir capacitor. After it warms up, its low resistance more efficiently passes the working current. Many active power factor correction systems also include soft start.
If the example circuit from before is used with a pre-charge circuit which limits the dV/dT to less than 600 volts per second, then the inrush current will be reduced from 670 amperes to 7 amperes. This is a "kinder and gentler" way to activate a high voltage DC power distribution system.
Electrical contacts may carry a "T" rating symbol indicating that they are designed to control circuits with the high inrush current characteristic of tungsten lamps. For a 100-watt, 120-volt general-service lamp, the current stabilizes in about 0.10 seconds, and the lamp reaches 90% of its full brightness after about 0.13 seconds.
Scene 4: The Journeying Angel On a forest road on La Verna an angel appears, disguised as a traveler. His knocking on the door of the monastery makes a terrific sound, symbolising the inrush of Grace. Brother Masseo opens the door. The Angel asks Brother Elias, the vicar of the Order, a question about predestination.
Inrush Limiting Contactors; 5. Capacitors (single-phase or three-phase units, delta-connection); 6. Transformer (for controls and ventilation fans) An automatic power factor correction unit consists of a number of capacitors that are switched by means of contactors. These contactors are controlled by a regulator that measures power factor in an electrical network.
Self-regulating and constant wattage heating cables have specific maximum exposure temperature, which means that if they are subject to high temperatures then the tape can be damaged beyond repair. Also self-limiting tapes are subject to higher inrush currents on cold starting up similar to an induction motor, so a higher rated contactor is required.
Two of the surviving crew members reported that the ship sank so fast that the inrush of current compressed the air in the engine room so much that it blasted them through a hole in the skylight. The surviving crew members clung to wreckage until being rescued. The Canadian and United States Coast Guards rescued 12 crew members.
The explosion killed around 250 German soldiers and French civilians and demolished both the front half of the ship and the 160-ton caisson, the inrush of water into the dock washing the remains of the ship into it. The dock was rendered unusable for the rest of the war, and was not repaired until 1947.
The pit had reached coal at . The explosion was obvious to the men above ground by a large column of dust rising from the pit. No flames were observed, the flame front seems to have been stopped by a large waggon blocking one of the roadways. Early reports blamed a sudden inrush of firedamp from old workings which pitmen had inadvertently broken into.
1997, chapter 5.8.5._ that by applying a dynamic pumping technique hydrogen, helium and neon can also be pumped without resorting to dry nitrogen purging. This is done by precooling the pump with the valve to the vacuum vessel closed. The valve is opened when the pump is cold and the inrush of adsorbable gases will carry all other gases into the pump.
As a result, lifespan of sensitive equipment may be reduced. Another common side-effect, especially in residential installations, is that of light flickering as a result of the voltage sag created by the high inrush current. A soft starter eliminates the undesired side effects. Several types based on control of the supply voltage or mechanical devices such as slip clutches were developed.
The second, more powerful explosion, designed to sink the boat, caused a huge inrush of seawater that drowned Pereira. The Rainbow Warrior led a flotilla of yachts protesting against French nuclear testing at Mururoa Atoll in the Tuamotu Archipelago of French Polynesia and was about to depart Auckland for a campaign of legal demonstrations in international waters near the French military operational areas at Moruroa Atoll.
Typically a load enters a high power stage (e.g. RX/TX On) for tens of micro- to milli-seconds and is then switched to low power or standby mode for hundreds of milli- or tens of seconds. Inrush currents cause voltage fluctuations due to parasitics of both components and interconnections, creating random noise in addition to the ringing and harmonics normally present. The result is SNJ.
The park originated in the 1930s and was named for its springs.Boiling Springs Park, Woodward Online - Parks (accessed May 18, 2013) It was constructed as a park from the natural environment by the Civilian Conservation Corps. The park received its current name because its sandy- bottom springs appear to be boiling because of the inrush of subsurface water. The water temperature is actually far cooler than boiling.
In addition to limiting the total average power used by the device, the USB specification limits the inrush current (i.e., the current used to charge decoupling and filter capacitors) when the device is first connected. Otherwise, connecting a device could cause problems with the host's internal power. USB devices are also required to automatically enter ultra low-power suspend mode when the USB host is suspended.
Green roofs also sequester rain and carbon pollution. Forty to eighty percent of the total volume of rain that falls on green roofs are able to be reserved. The water released from the roofs flow at a slow pace, reducing the amount of runoff entering the watershed at once. Blue roofs, not technically being green infrastructure, collect and store rainfall, reducing the inrush of runoff water into sewer systems.
The mechanism that finally came into widespread use in the 20th century was all-pneumatic, with foot-operated bellows providing a source of vacuum needed to operate a pneumatic motor driving the take-up spool while each small inrush of air through a hole in the paper roll was amplified in two pneumatic stages (the so-called double valve mechanism) to sufficient strength to strike a loud note.
A vestige of former mining activity in the area is the historic Vienenburg potash works and fertilizer plant with its old shafts: numbers I, II and III. In operation from the 1880s, the mine was closed after a massive brine inrush in 1930. The former Cistercian monastery of Wöltingerode, located on the southern perimeter of the ridge west of Vienenburg, and its abbey distillery are also worth seeing.
Soft starters can be set up to the requirements of the individual application. Compared to variable- frequency drives, soft starters require very few user adjustments. Some soft starters also include a "learning" process to automatically adapt the drive settings to the characteristics of a motor load, to reduce the power inrush requirement at the start. In pump applications, a soft starter can avoid pressure surges, also known as water hammering.
Green roofs also sequester rain and carbon pollution. Forty to eighty percent of the total volume of rain that falls on green roofs are able to be reserved. The water released from the roofs flow at a slow pace, reducing the amount of runoff entering the watershed at once. Blue roofs, not technically being green infrastructure, collect and store rainfall, reducing the inrush of runoff water into sewer systems.
The opening of the MPT pore leads to the inrush of water into the mitochondria, resulting in mitochondrial dysfunction and collapse. Upon collapse, the calcium is then released to overwhelm the next mitochondria in a cascading series of events that cause mitochondrial energy production supporting the cell to be reduced or stopped completely. The cessation of energy production results in cellular death. Protecting mitochondria is a viable cardioprotective strategy.
When a transformer is first energized, a transient current up to 10 to 15 times larger than the rated transformer current can flow for several cycles. Toroidal transformers, using less copper for the same power handling, can have up to 60 times inrush to running current. Worst-case inrush happens when the primary winding is connected at an instant around the zero crossing of the primary voltage (which for a pure inductance would be the current maximum in the AC cycle) and if the polarity of the voltage half-cycle has the same polarity as the remanence in the iron core has (the magnetic remanence was left high from a preceding half cycle). Unless the windings and core are sized to normally never exceed 50% of saturation (and in an efficient transformer they never are, such a construction would be overly heavy and inefficient), then during such a start- up the core will be saturated.
The main levee at Clarendon held until the White River reached a height of 38.5 feet, 8.5 above normal flood stage; the flood eventually crested at 44 feet. While no fatalities were reported, the town was inundated by water up to the second floor of many buildings, and the catastrophic inrush of water when the levee broke caused considerable damage to many buildings. The cleanup of mud and debris took many years.
Iron–hydrogen resistors were used in the early vacuum tube systems in series with the tube heaters, to stabilize the heater circuit current against fluctuating supply voltage. In 1930s Europe it was popular to combine them in the same glass envelope with an NTC-type thermistor made of UO2 until 1936, known as Urdox resistor and acting as an inrush current limiter for the series heater strings of domestic AC/DC tube radios.
The centre line, when the tunnel was connected, was only 1/8th of an inch out, while the levels were absolutely correct. Despite careful lining leaks kept occurring. The tunnel was flooded about 1930, whether intentionally to avoid continual pumping or as the result of a sudden inrush of water, is not clear. In 1952 the Electricity Commission of New South Wales was formed to take over the generation of all electric power in NSW.
Because it regenerates an output voltage waveform, output distortion, which is typically less than 4%, is independent of any input voltage distortion, including notching. Efficiency at full load is typically in the range of 89% to 93%. However, at low loads, efficiency can drop below 60%. The current-limiting capability also becomes a handicap when a CVT is used in an application with moderate to high inrush current like motors, transformers or magnets.
A slow pre-charge will also reduce the voltage into a faulty circuit which builds up while the system diagnostics come on-line. This allows a diagnostic shut down before the fault is fully realized in worst case proportions. In cases where unlimited inrush current is large enough to trip the source circuit breaker, a slow precharge may even be required to avoid the nuisance trip. Pre-charging is commonly used in battery electric vehicle applications.
Switching high-intensity incandescent (filament) lamps to full power from cold can shorten their life dramatically, owing to the large inrush current that occurs. To reduce stress on the lamp filaments, dimmers may have a preheat function. This sets a minimum level, usually between 5% and 10%, which appears turned-off, but stops the lamp from cooling down too much. This also speeds up the lamp's reaction to sudden bursts of power that operators of rock'n'roll-style shows appreciate.
This contemporary history vividly describes the inrush of the Tatars, conflicts between Split and Trogir and political disputes in the city. The Siege of Zadar and Obsidio Jadrensis are two books by unknown authors from the 14th century. They are a detailed overview of Zadar in 1345–1346, when it was threatened by the Venetians over land and sea. The author of Obsidio Jadrensis is sympathetic to the Venetian cause, unlike the author of the Siege of Zadar.
Smaller sizes of direct on- line starters are manually operated; larger sizes use an electromechanical contactor to switch the motor circuit. Solid-state direct on line starters also exist. A direct on line starter can be used if the high inrush current of the motor does not cause excessive voltage drop in the supply circuit. The maximum size of a motor allowed on a direct on line starter may be limited by the supply utility for this reason.
The sudden inrush of of water trapped seven mine workers below ground. A six-day rescue operation was carried out but succeeded in recovering only one body, that of Charles Cotton. The location of the flooded shaft was known to National Coal Board (NCB) surveyors but they had not believed it to be as deep as the modern workings. British Geological Survey records indicated that the flooded shaft did descend to the same depth but the NCB neglected to check these records.
To reduce the inrush current, larger motors will have reduced-voltage starters or adjustable-speed drives in order to minimise voltage dips to the power supply. A reversing starter can connect the motor for rotation in either direction. Such a starter contains two DOL circuits — one for clockwise operation and the other for counter-clockwise operation, with mechanical and electrical interlocks to prevent simultaneous closure. For three phase motors, this is achieved by swapping the wires connecting any two phases.
Binghamton is home to an ethnically diverse population. During its industrial heyday, thousands of European immigrants moved to the city as they found an abundance of jobs and working-class prosperity. Many Irish, Italians, and Eastern Europeans settled in the area, and the American Civic Association was created to help their transition to life and assimilation in the United States. This inrush led to a temporary rise in the local Ku Klux Klan during the 1920s, with Binghamton serving as state headquarters.
Glass may also be damaged by high-voltage arcing. Tube heaters may also fail without warning, especially if exposed to over voltage or as a result of manufacturing defects. Tube heaters do not normally fail by evaporation like lamp filaments since they operate at much lower temperature. The surge of inrush current when the heater is first energized causes stress in the heater and can be avoided by slowly warming the heaters, gradually increasing current with a NTC thermistor included in the circuit.
The main disadvantages are higher cost and limited power capacity (see Classification parameters below). Because of the lack of a residual gap in the magnetic path, toroidal transformers also tend to exhibit higher inrush current, compared to laminated E-I types. Ferrite toroidal cores are used at higher frequencies, typically between a few tens of kilohertz to hundreds of megahertz, to reduce losses, physical size, and weight of inductive components. A drawback of toroidal transformer construction is the higher labor cost of winding.
The town of Hamilton, later renamed Champion, was created as part of the inrush of settlers to the area in 1886. The location of the town was chosen because a natural three-foot (one meter) rock waterfall on the Frenchman Creek was deemed a prime site for a mill. Thomas Scott acquired land and water rights in exchange for his promise to build a mill on the site. An earthen dam and a mill were built and production of flour and animal feed began in 1889.
One bomb exploded in Noshiros AA shell magazine, starting a fire that was quickly extinguished. In the second attack, six more Avengers attacked Noshiro, which dodged their torpedoes, but in the third wave, an Avenger launched a Mark 13 aerial torpedo that hit in the No. 3 boiler room. It instantly flooded, and the No. 1 boiler room flooded shortly thereafter. The inrush of water threw all of Noshiros boilers off line, and she came to a halt with a 16-degree list to port.
The area containing present Arapaho was surveyed by federally-contracted surveyors in 1891, prior to the Cheyenne- Arapaho land opening on April 19, 1892. A US post office was set up for the proposed community on March 23, 1892. On April 19, 1892, the expected inrush of settlers did materialize; by sundown some 400 claims had been posted. The first town newspaper was issued 10 days later, titled The Arapahoe Arrow (by the end of the year its name had changed to The Arapahoe Bee).
Two heavier influxes took place during the 20th century. The earliest right after the Great War and the second inrush between the 1930s and 1950s. Anusim or Portuguese and Dutch Marrano Crypto Jews can be found in every one of the 5 geographical regions, but are most common in the Northeast, with Pernambuco having one of the largest Converso populations due to colonial history. Brazil has the oldest synagogue in the Americas founded during Dutch Brazil rule, Kahal Zur Israel Synagogue, located in Recife.
The major of engineers in charge of the works recorded that "great difficulty was experienced in recovering the men to the surface before they were drowned by the inrush from the Spring". The construction records, including the commanding officer's daily diary, are now in the National Archives at Kew, and were researched by the architect and the main contractor – C.G. Dumond (Builders) Ltd. – for useful information during the conversion of the fort into a leisure centre in the 1970s. The granite was drilled with "jumper drill" irons hit with sledgehammers.
A MOV inside a transient voltage surge suppressor (TVSS) does not provide complete protection for electrical equipment. In particular, it provides no protection from sustained over-voltages that may result in damage to that equipment as well as to the protector device. Other sustained and harmful over-voltages may be lower and therefore ignored by a MOV device. A varistor provides no equipment protection from inrush current surges (during equipment startup), from overcurrent (created by a short circuit), or from voltage sags (brownouts); it neither senses nor affects such events.
The current to the motor is regulated by a controller that employs large capacitors in its input circuit. Such systems typically have contactors (a high-current relay) to disable the system during inactive periods and to act as an emergency disconnect should the motor current regulator fail in an active state. Without pre-charge the high voltage across the contactors and inrush current can cause a brief arc which will cause pitting of the contacts. Pre-charging the controller input capacitors (typically to 90 to 95 percent of applied battery voltage) eliminates the pitting problem.
Joseph Bailly was an exceptional father on the frontier of the midwest. He ensured that all of his children were highly educated, spoke multiple languages, and contributed to society. Bailly's son, Francis Bailly, became a medical doctor, and a medicine man of the Grand River Ottawa band. Following the forfeiture of the Ottawa lands on Maple River, Francis, his cousin Maketoquit, and a sub-chief man named Wintagowish purchased the land containing their village on Maple River in an attempt to co-exist with the new inrush of settlers.
Water flows through it under the influence of gravity. A dry well receives water from one or more entry pipes or channels at its top and discharges the same water through a number of small exit openings distributed over a larger surface area in the side(s) and bottom of the dry well. When a dry well is above the water table, most of its internal volume will contain air. Such a dry well can accept an initial inrush of water very quickly, until the air is displaced.
Conveyor belt systems can be smoothly started, avoiding jerk and stress on drive components. Fans or other systems with belt drives can be started slowly to avoid belt slipping as well as air pressure surges. Soft starters are seen in electrical R/C helicopters, and allow the rotor blades to spool-up in a smooth, controlled manner rather than a sudden surge. In all systems, a soft start limits the inrush current and so improves stability of the power supply and reduces transient voltage drops that may affect other loads.
As Dunedin developed the Peninsula's southern end became a city recreation ground and then a suburb. As increasing numbers of immigrants began arriving settlements were formed on the harbourside and on the Highcliff Road on the spine of the land mass, but in the early phase of European settlement, also on the more exposed Pacific slopes. The discovery of gold in 1861 resulted int a massive inrush of people and capital into Otago. Over the next decade millions of pounds worth of gold flowed from the diggings, the majority passing through Dunedin.
In the case of charging a capacitor from a linear DC voltage, like that from a battery, the capacitor will still appear as a short circuit; it will draw current from the source limited only by the internal resistance of the source and ESR of the capacitor. In this case, charging current will be continuous and decline exponentially to the load current. For open circuit, the capacitor will be charged to the DC voltage. Safeguarding against the filter capacitor’s charging period’s initial current inrush flow is crucial for the performance of the device.
80 Shinanos launch on 8 October 1944, with Captain Toshio Abe in command, was marred by what some considered an ill- omened accident. During the floating-out procedure, one of the caissons at the end of the dock that had not been properly ballasted with seawater unexpectedly lifted as the water rose to the level of the harbor. The sudden inrush of water into the graving dock pushed the carrier into the forward end, damaging the bow structure below the waterline and requiring repairs in drydock. These were completed by 26 October.
Reduced-voltage, star-delta or soft starters connect the motor to the power supply through a voltage reduction device and increases the applied voltage gradually or in steps. Two or more contactors may be used to provide reduced voltage starting of a motor. By using an autotransformer or a series inductance, a lower voltage is present at the motor terminals, reducing starting torque and inrush current. Once the motor has come up to some fraction of its full-load speed, the starter switches to full voltage at the motor terminals.
Backdrafts are very dangerous, often surprising even experienced firefighters. The most common tactic used by firefighters to defuse a potential backdraft is to ventilate a room from its highest point, allowing the heat and smoke to escape without igniting. Common signs of backdraft include a sudden inrush of air upon an opening into a compartment being created, lack of visible signs of flame (fire above its upper flammability limit), "pulsing" smoke plumes from openings and auto-ignition of hot gases at openings where they mix with oxygen in the surrounding air.
It is then cut in two, forming two C shapes, and the core assembled by binding the two C halves together with a steel strap. They have the advantage that the flux is always oriented parallel to the metal grains, reducing reluctance. A steel core's remanence means that it retains a static magnetic field when power is removed. When power is then reapplied, the residual field will cause a high inrush current until the effect of the remaining magnetism is reduced, usually after a few cycles of the applied AC waveform.
Overcurrent protection devices such as fuses must be selected to allow this harmless inrush to pass. On transformers connected to long, overhead power transmission lines, induced currents due to geomagnetic disturbances during solar storms can cause saturation of the core and operation of transformer protection devices. Distribution transformers can achieve low no-load losses by using cores made with low-loss high-permeability silicon steel or amorphous (non-crystalline) metal alloy. The higher initial cost of the core material is offset over the life of the transformer by its lower losses at light load.
The Mines Rescue Rules, 1985, came into force with effect from 2 April 1985 in India, replacing the previous Coal Mines Rescue Rules-1959, to provide for rescue of work persons in the event of explosion, fire etc. in the Mines. These rules apply to coal and metalliferous underground mines to provide for the establishment of rescue stations and conduct of rescue work. In case of explosion or fire, an inrush of water or influx of gases, services of specially trained men with special rescue apparatuses are required.
At 5:45 pm on 20 November 1931, firedamp was ignited in the North East Colliery Face of the mine which caused roof falls preventing the men from reaching the shaft and the pit-head. After the explosion there was another inrush of gas which starved oxygen from the air. As news of the disaster spread, a crowd of over 2,000 people gather at the pit head to wait for news. Four men went down the pit wearing breathing apparatus and had to carry the injured over to get them to safety.
Between 11:30 and 11:40 am on 14 January 1895, whilst there was 240–260 miners underground, a huge wall of water forced its way into the mine. It is believed that fireman William Sproston had fired a shot into the new 10-Foot seam in Shaft No.1, which weakened the barrier between the new workings and the old tunnels which were flooded with water. Modern estimates have surmised that the wall holding back the water was subject to before it was breached. 77 men and boys who were digging underground, were drowned in the inrush of water.
These observations were made twenty-nine years after the disastrous Brooklyn Theatre fire. Engineer Fred J. Manning, Engine Number 5, arriving at 11:22 p.m., testified that the scene doors were about two- thirds open, with "one or two men attempting to bring something out of these doors." Abner C. Keeny, part owner and contractor of the building, commenting on the fire the following morning, believed that the sudden inrush of air from the scenic entrance fanned the fire and triggered its spread from the stage to the theatre at large, leading to the rapid advance of smoke onto the family circle.
Precharging a high voltage DC power distribution line can control the inrush current into capacitive components, reducing stress and supporting a long component life. The functional requirement of the high voltage pre-charge circuit is to minimize the peak current out from the power source by slowing down the dV/dT of the input power voltage such that a new "pre-charge mode" is created. Of course the inductive loads on the distribution system must be switched off during the precharge mode. While pre-charging, the system voltage will rise slowly and controllably with power-up current never exceeding the maximum allowed.
In 1811–12 there was an attempt to excavate a tunnel under the River Severn, apparently as an extension to the railway. The tunnel began on the bank between Bullo Pill and Newnham, and was intended to emerge on the far side near Arlingham. The tunnel had been extended 226 yards out, about half way, but an inrush of water in November 1812 meant work was abandoned. In 1812 the Severn and Wye Railroad Company line was extended to meet the Bullo Pill Railway at Churchway, but there seems initially to have been little traffic passing between the two.
East Pass is the only outlet of Choctawhatchee Bay into the Gulf of Mexico, Many sources claim that the current pass was dug by hand with an inrush of water widening it within hours. The early pass appears (at the East end of Destin Harbor) in early maps and surveys from Spanish, French, and English surveyors, such as Thomas Jefferys's 1775 map The Coast of West Florida and Louisiana. Frequent dredging is required to keep East Pass navigable. "Crab Island," was actually two islands made from sand that the Army Corps of Engineers dredged up from the East Pass.
Intentional breaching of the subterranean mine chambers allowed large amounts of oxygen to rush in, greatly worsening the fire. Steve Kisela, a bulldozer operator in Bridy's project, said that the project was ineffective because the inrush of air helped the fire to move ahead of the excavation point by the time the section was drilled and blasted. Bridy was also using a shovel, which was considered small for the project. Furthermore, the state only permitted Bridy's team to work weekday shifts which were eight hours long and only occurred during the day time; commonly referred to as "first shift" in the mining industry.
A large value reservoir capacitor (C4) and bleeding resistor(s) (R1, R2) are connected across the diodes. The signal is rectified by the diodes and the rectified DC voltage charges the reservoir capacitor, while a small steady current bleeds through the resistor(s), continuously discharging it. This results in a constant steady load and a small damping effect on the tuned circuit. As the amplitude of the signal increases, the higher rectified voltage results in an inrush current towards the reservoir capacitor; the increased load damps the tuned circuit, thereby compensating for the amplitude increase of the signal.
The matter, I suggest, may > very well stand over for the present; and, when the autonomy question is > settled in the Northwest Territories, if it is found that any Province, or > organized territory with representation, extends over a considerable tract > of country in which aboriginal title has not been extinguished, then in such > case, or from the entrance of a railway, the discovery of mines, or other > cause to bring an inrush of whites, a treaty should be made without delay. Laird died in Ottawa on January 12, 1914. The town of Laird, Saskatchewan was named in his honour.
A failed (blown) NTC thermistor that worked as an inrush current limiter in a switched- mode power supply Many NTC thermistors are made from a pressed disc, rod, plate, bead or cast chip of semiconducting material such as sintered metal oxides. They work because raising the temperature of a semiconductor increases the number of active charge carriers it promotes them into the conduction band. The more charge carriers that are available, the more current a material can conduct. In certain materials like ferric oxide (Fe2O3) with titanium (Ti) doping an n-type semiconductor is formed and the charge carriers are electrons.
A BMS may also feature a precharge system allowing a safe way to connect the battery to different loads and eliminating the excessive inrush currents to load capacitors. The connection to loads is normally controlled through electromagnetic relays called contactors. The precharge circuit can be either power resistors connected in series with the loads until the capacitors are charged. Alternatively, a switched mode power supply connected in parallel to loads can be used to charge the voltage of the load circuit up to a level close enough to battery voltage in order to allow closing the contactors between battery and load circuit.
At standstill, the rotor current is the same frequency as the stator current, and tends to travel at the outermost parts of the cage rotor bars (by skin effect). The different bar shapes can give usefully different speed-torque characteristics as well as some control over the inrush current at startup. Although polyphase motors are inherently self-starting, their starting and pull-up torque design limits must be high enough to overcome actual load conditions. In wound rotor motors, rotor circuit connection through slip rings to external resistances allows change of speed-torque characteristics for acceleration control and speed control purposes.
These observations, made twenty- nine years after the fact, resonate with those made on the night of the Brooklyn Theatre fire. Engineer Fred J. Manning, Engine Number 5, arriving at 11:22 p.m., testified that the scene doors were about two-thirds open, with "one or two men attempting to bring something out of these doors." Abner C. Keeny, part owner and contractor of the building, commenting on the fire the following morning, believed that the sudden inrush of air from the scenic entrance fanned the fire and triggered its spread from the stage to the theatre at large, leading to the rapid advance of smoke onto the family circle.
These devices are not rated in joules because they operate differently from the earlier suppressors, and they do not depend on materials that inherently wear out during repeated surges. SM suppressors are primarily used to control transient voltage surges on electrical power feeds to protected devices. They are essentially heavy- duty low-pass filters connected so that they allow 50 or 60 Hz line voltages through to the load, while blocking and diverting higher frequencies. This type of suppressor differs from others by using banks of inductors, capacitors and resistors that suppress voltage surges and inrush current to the neutral wire, whereas other designs shunt to the ground wire.
By this time, however, the ship had already taken on too much water through its port-side gun ports, and the drum was never sounded. The ship tilted heavily to port, causing a sudden inrush of water and a burst of air out the starboard side. The barge along the port side which had been unloading the rum was caught in the masts as the ship turned, briefly delaying the sinking, but losing most of her crew. Royal George quickly filled up with water and sank, taking with her around 900 people, including up to 300 women and 60 children who were visiting the ship in harbour.
The shaft was completed to a depth of within four weeks, however after driving a gallery the Royal Engineers faced a sudden inrush of quicksand and a concrete dam had to be constructed. A new attempt was made, and by April 1916 the Trench 127 mine was ready, with the ammonal charges over away from the initial shaft. Plan of the deep mines at La Petite Douve Farm At the end of January 1916, 171st Tunnelling Company began mining operations at La Petite Douve Farm. The farm, located next to the road from Messines to Ploegsteert Wood, was enclosed by a German trench system known as ULNA.
A rare accident for the company occurred when the RMT paddle steamers Princesse Henriette and Comtesse de Flandre collided in heavy fog on 29 March 1889 when both attempt to avoid collision with a fishing smack offshore between Ruytingen and Dunkirk. Princesse Henriette struck Comtesse de Flandre on the starboard side, just abaft the paddle box, nearly slicing the vessel in half. The inrush of water caused a boiler explosion, and the Comtesse de Flandre sank with a loss of 15 lives, of whom four were passengers. Princesse Henriette rescued 32 survivors, including 19 passengers. Among the survivors was Jerome Napoleon Bonaparte II.Charles Hocking, Dictionary of Disasters at Sea During the Age of Steam, Vol 1, p. 158.
This can also be expressed as the remnant magnetism in normal operation is nearly as high as the saturation magnetism at the "knee" of the hysteresis loop. Once the core saturates, however, the winding inductance appears greatly reduced, and only the resistance of the primary-side windings and the impedance of the power line are limiting the current. As saturation occurs for part half-cycles only, harmonic-rich waveforms can be generated and can cause problems to other equipment. For large transformers with low winding resistance and high inductance, these inrush currents can last for several seconds until the transient has died away (decay time proportional to XL/R) and the regular AC equilibrium is established.
In the lower voltage range, around 115 V, this switch is turned on changing the power grid voltage rectifier into a voltage doubler in delon circuit design. As a result, the large primary filter capacitor behind that rectifier was split up into two capacitors wired in series, balanced with bleeder resistors and varistors that were necessary in the upper input voltage range, around 230 V. Connecting the unit configured for the lower range to a higher-voltage grid usually resulted in an immediate permanent damage. When the power factor correction (PFC) was required, those filter capacitors were replaced with higher-capacity ones, together with a coil installed in series to delay the inrush current. This is the simple design of a passive PFC.
Schematic symbol of a slip ring motor A wound-rotor motor, also known as slip ring-rotor motor, is a type of induction motor where the rotor windings are connected through slip rings to external resistance. Adjusting the resistance allows control of the speed/torque characteristic of the motor. Wound-rotor motors can be started with low inrush current, by inserting high resistance into the rotor circuit; as the motor accelerates, the resistance can be decreased.Harold J. Herbein Rotating Machinery, Rinehart Press, 1971, SBN 03-084675-7, pages 215-218 Compared to a squirrel-cage rotor, the rotor of the slip ring motor has more winding turns; the induced voltage is then higher, and the current lower, than for a squirrel-cage rotor.
On hearing the inrush of water and feeling the rising levels, William Dodd, the under-manager who had an office at the bottom of No. 2 shaft, ran to warn other miners of the danger and they also played a part in the rescue of 35-40 miners. Dodd also organised a search party and went back into the mine to try and find survivors. A roll-call was held on the next day (15 January 1895) which determined that some ninety-odd men were possibly still in the mine. A rescue party went as far as they safely could into the mine, and they reported back that no tapping or other signs of life were evident, although, neither had any bodies been discovered.
The mining industry still has one of the highest rates of fatalities of any industry. There are a range of hazards present in surface and underground mining operations. In surface mining, leading hazards include such issues as geological stability, contact with plant and equipment, blasting, thermal environments (heat and cold), respiratory health (Black Lung) In underground mining operations hazards include respiratory health, explosions and gas (particularly in coal mine operations), geological instability, electrical equipment, contact with plant and equipment, heat stress, inrush of bodies of water, falls from height, confined spaces. ionising radiation According to data from the 2010 NHIS-OHS, workers employed in mining and oil and gas extraction industries had high prevalence rates of exposure to potentially harmful work organization characteristics and hazardous chemicals.
On the evening of March 6, 1987, the cross-channel Ro-Ro ferry Herald of Free Enterprise, carrying more than 450 passengers, around 80 crew, more than 80 cars, and close to 50 freight vehicles, left the Belgian port of Zeebrugge for the English port of Dover. Soon after the Herald of Free Enterprise passed Zeebrugge's breakwater, water flooded into the ferry's lower car deck and destabilized it, causing it to sink in a matter of minutes. 193 lives were lost. The immediate cause of the accident was that the bow door remained wide open, allowing a great inrush of water as the vessel increased speed, while the fatigued assistant boatswain directly responsible for closing it lay asleep in his cabin.
A switched-mode power supply operating at the current limit with the output short circuited does not have increased power dissipation in the power transistor(s), so foldback current limiting is an application feature only rather than one that also prevents a load fault from also destroying the power supply. The safety benefit of reducing the power delivered to a short circuit in the load is proportional to the operating current limit. Foldback current limiting is most likely to be found in a switchmode power supply when it is a component in a product that is independently certified to meet regional safety standards. The inrush current of an incandescent lamp causes a bench power supply to limit its output current with a foldback current limiter.
Because the flywheels are a mechanical power source, it is not necessary to use an electric motor or generator as an intermediary between it and a diesel engine designed to provide emergency power. By using a transmission gearbox, the rotational inertia of the flywheel can be used to directly start up a diesel engine, and once running, the diesel engine can be used to directly spin the flywheel. Multiple flywheels can likewise be connected in parallel through mechanical countershafts, without the need for separate motors and generators for each flywheel. They are normally designed to provide very high current output compared to a purely electronic UPS, and are better able to provide inrush current for inductive loads such as motor startup or compressor loads, as well as medical MRI and cath lab equipment.
Had the hull been breached, whilst the forward escape hatch was open, the inrush of water could have overwhelmed the submarine. The starboard propeller blades were found to be worn down at their tips, indicating that either the propellers were turning (perhaps full astern) as Vandal hit the seabed, or whilst she was on the seabed in an attempt to drive her off the bottom. This would imply there were survivors in the forward compartments of the submarine, and a report by the Lochranza pier master of seeing smoke candles on the surface gives further weight to this theory. Those not killed in the initial flooding in the aft compartments might have therefore attempted to use the forward escape hatch to leave the submarine and tried to make it to the surface, an endeavour that ultimately ended in failure.
This method is the fastest way of releasing pressure with portable pressure cookers, but can be dangerous if performed incorrectly. It is therefore safer to release pressure by following the other methods. The manufacturer's instruction book may advise against the cold water release or require it to be performed differently. The cold water release method involves using slow running cold tap water, over the edge of the pressure cooker lid, being careful to avoid the steam vent or any other valves or outlets and never immersing the pressure cooker under water, otherwise steam can be ejected from under the lid, which could cause scalding injury to the user; also the pressure cooker lid can be permanently damaged by an internal vacuum if water gets sucked into the pressure cooker, since the incoming water blocks the inrush of air.
Paul Krugman wrote in 2009 that a trade deficit by definition requires a corresponding inflow of capital to fund it, which can drive down interest rates and stimulate the creation of bubbles: "For a while, the inrush of capital created the illusion of wealth in these countries, just as it did for American homeowners: asset prices were rising, currencies were strong, and everything looked fine. But bubbles always burst sooner or later, and yesterday’s miracle economies have become today’s basket cases, nations whose assets have evaporated but whose debts remain all too real."NYT-Paul Krugman-Revenge of the Glut-March 2009 A trade deficit can also be affected by changes in relative labour costs, which made southern nations less competitive and increased trade imbalances. Since 2001, Italy's unit labour costs rose 32 % relative to Germany's.
Unfortunately, the test cock on tube number 5 was blocked by some enamel paint so no water flowed out even though the bow cap was open. Prickers to clear the test cocks had been provided but they were not used. This combined with a confusing layout of the bow cap indicators — they were arranged in a vertical line with 5 at the bottom (2,1,4,3,6, and then 5) and the "Shut" position for tube 5 on the dial was the mirror image of tube 6 above it — led to the inner door of the tube being opened. The inrush of water caused the bow of the submarine to sink to the seabed below the surface. How the outer door (bow cap) to Tube 5 became open to the sea is a question that will probably never be answered: Woods maintained that until at least 10 minutes before he opened the tube all the indicators were at "Shut".

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