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NPCC Glossary of Terms - Northeast Power Coordinating Council
NPCC Glossary of Terms - Northeast Power Coordinating Council

... cascading outages will not occur due to operation of protective devices upon the failure of facilities. (Various definitions of equipment ratings are found elsewhere in this glossary.) An Area (when capitalized) refers to one of the following: New England, New York, Ontario, Quebec or the Maritimes ...
review of ground fault protection methods for
review of ground fault protection methods for

... high-resistance ground faults on these systems is difficult because the protective relay measures the high-resistance ground fault current combined with the unbalance current. Ground faults on these systems may produce high-magnitude currents that require tripping the entire circuit and interrupting ...
ADP1870 英文数据手册DataSheet 下载
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... The ADP1870/ADP1871 are versatile current-mode, synchronous step-down controllers that provide superior transient response, optimal stability, and current-limit protection by using a constant on-time, pseudo-fixed frequency with a programmable currentlimit, current-control scheme. In addition, these ...
PI5USB2546
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...  Prevents overloading of the system’s power supply  Limiting the total power of USB port  System monitors /STATUS pin for different USB port  Once # of USB port assert /STATUS, system will ...
Voltage management
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... dependent and voltage independent loads and the relationship between power and energy. In practice most devices are more complex and their overall power demand will have multiple components that could be either voltage dependent or voltage independent. This is particularly true in the case of electr ...
KD-10 MHO UNITS CALIBRATION USING IN
KD-10 MHO UNITS CALIBRATION USING IN

... a. Connect relay terminal 8 and 9 together, apply rated ac voltage between terminals 7 and 8. Adjust core by turning it slightly until the contact arm floats or restrains very slightly. b. Connect the relay terminals 7 and 8 together and apply rated ac voltage between 7 and 9. Adjust core until the ...
WT 1600 Total Solution Numerical, Waveform, and Trend Displays
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... rpms (requires the optional motor evaluation function) • Measurement of rapidly fluctuating secondary voltage and lamp current when a light is turned on ...
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... Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Inc ...
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... shutdown window. When the PWM input signal enters and remains within the three-state window for a defined hold-off time (tD_HOLD-OFF), both GL and GH are pulled LOW. This feature enables the gate drive to shut down both high-and low-side MOSFETs to support features such as phase shedding, which is a ...
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... called SHDN. One can handle the SHDN statically keeping it permanently up or down (see following points i) and ii) or dynamically (see point iii): i) Keep the SHDN low to make the fast reset work autonomously. Whenever a signal crosses over a preset threshold the fast-reset transient begins. The fas ...
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... circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small p ...
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... The package thermal impedance is calculated in accordance with JESD 51-7. Maximum power dissipation is a function of TJ(max), θJC, and TC. The maximum allowable power dissipation at any allowable case temperature is PD = (TJ(max) - TC) / θJC. Operating at the absolute maximum TJ of 150°C can affect ...
Texas Instruments BQ24155RGYT datasheet: pdf
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... device for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications. The charge parameters can be programmed through an I2C interface. The bq24155 integrates a synchronous PWM controller, power FETs, input current sensing, high-accuracy current and voltage regulation ...
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... without latchup or damage. Each switch can handle Rail-to-Rail® analog signals. The off-leakage current is 0.5nA at +25°C. These analog switches are suitable for low-distortion audio applications and are the preferred solution over mechanical relays in automated test equipment or applications where ...
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... When moving a transformer on a pallet with a forklift truck, the forklift truck should be of proper capacity. Forks should be of sufficient length to extend completely through the shipping pallet. Transformers should be lifted with the tank (the compartment that contains the core/coil assembly and t ...
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... The MAX9617–MAX9620 are low-power, zero-drift operational amplifiers available in space-saving SC70 packages. They are designed for use in portable consumer, medical, and industrial applications. The MAX9617–MAX9620 feature rail-to-rail CMOS inputs and outputs, a 1.5MHz GBW at just 59FA supply curre ...
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... A 12-pulse converter incorporates two separate AFD input semiconductor bridges, which are fed from 30° phase shifted power sources with identical impedance. The sources may be two isolation transformers, where one is a delta/wye design (which provides the phase shift) and the second a delta/delta de ...
ultrasonic radar based
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bq500410A Qi Compliant Free-Positioning Wireless Power
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... driven. The flux is coupled into the secondary coil which induces a voltage and current flows. The secondary voltage is rectified, and power can be transferred effectively to a load, wirelessly. Power transfer can be managed through any of various familiar closed-loop control schemes. 7.1.2 Wireless ...
Old Company Name in Catalogs and Other Documents
Old Company Name in Catalogs and Other Documents

... All information included in this document is current as of the date this document is issued. Such information, however, is subject to change without any prior notice. Before purchasing or using any Renesas Electronics products listed herein, please confirm the latest product information with a Renes ...
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Islanding

Islanding refers to the condition in which a distributed generator (DG) continues to power a location even though electrical grid power from the electric utility is no longer present. Islanding can be dangerous to utility workers, who may not realize that a circuit is still powered, and it may prevent automatic re-connection of devices. For that reason, distributed generators must detect islanding and immediately stop producing power; this is referred to as anti-islanding.The common example of islanding is a grid supply line that has solar panels attached to it. In the case of a blackout, the solar panels will continue to deliver power as long as irradiance is sufficient. In this case, the supply line becomes an ""island"" with power surrounded by a ""sea"" of unpowered lines. For this reason, solar inverters that are designed to supply power to the grid are generally required to have some sort of automatic anti-islanding circuitry in them.In intentional islanding, the generator disconnects from the grid, and forces the distributed generator to power the local circuit. This is often used as a power backup system for buildings that normally sell their excess power to the grid.
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