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01039
01039

... method of capacitor bank protection, incorporating a temperature transducer input as the best option for their needs. Impedance directly qualifies the value of interest for bank protection: the measure of capacitance, and its change in value, which may indicate failure of capacitor sections. This im ...
Selecting A Non-Inductive Bulk Ceramic Resistor
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... resistors are inherently non-inductive because of their bulk ceramic construction, which allows energy and power to be uniformly distributed through the entire ceramic resistor body with no film or wire to fail. The bulk ceramic material also allows simple, efficient resistor designs that enable the ...
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... step-down, interleaved, fixed-frequency, switch-mode power-supply (SMPS) controllers with synchronous rectification. The MAX8716/MAX8717/MAX8756/MAX8757 are intended for main (5V/3.3V) power generation, while the MAX8756 is optimized for I/O power rails in batterypowered systems. Fixed-frequency ope ...
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... into Q2. Q2 operates in linear mode to regulate the LED current. The LED current is ILED = VBE(Q1) / REXT From this, for any required LED current the necessary external resistor REXT can be calculated from REXT = VBE(Q1) / ILED ...
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... in the conductor will set up flux lines. However, the flux beyond a distance D + r2 from the center of the conductor links a net current of zero and therefore does not contribute to the flux linkage of the circuit. Also at a distance less than D  r2 from the center of conductor 1 the current flowin ...
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... ideally suited for easy and convenient design of a step−down switching regulator (buck converter). All circuits of this series are capable of driving a 0.5 A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5.0 V, 12 V, 15 V, and an adjusta ...
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... Services indicates that a prize winner owes child support, the amount due will be deducted from the winnings and the remainder, if any, will be remitted to the winner. Refer to the LLC's Special Rules and Regulations on Payment of Prizes for additional information regarding this matter. DISPUTES In ...
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... loop associated with each side of the booster limits stage gain to about 5. This is necessary for stability. The gain bandwidth available through the Q3-Q5 and Q4-Q6 connections is quite high, and not readily controllable. The local feedback reduces the gain bandwidth, prompting stage stability. The ...
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... 1. Pre-start line fault advising of shorted SCR or missing load connection with phase indication. 2. Phase imbalance protection 3. Running line fault advising power loss, shorted SCR, or missing load connection. 4. SCR Over temperature 5. The overload is the only defeatable protection provided as st ...
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EDS 08-0121 Supplies to HOT Sites and

... This document forms part of the Company’s Integrated Business System and its requirements are mandatory throughout UK Power Networks. Departure from these requirements may only be taken with the written approval of the Director of Asset Management. If you have any queries about this document please ...
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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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