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Coils and Electronic Controls
Coils and Electronic Controls

... immediately immersed in a solution at 0°C. The thermal shock is repeated five times with the coil monitored for dielectric strength in the solution and functional performance is verified. ...
4316C-part2
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... • Deck switches should only be operated with fingers, bare feet or soft soled shoes. Switch may be finger operated through lid on open access version Lift lid to operate switch by foot, close lid after use Do not use hard soled shoes or sharp objects to operate switch • Switches should be left wit ...
Digital Controlled Street-Lighting TRIAC Dimming without Flicker
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... intelligent controls. The strategy of many semiconductor IC manufacturers is to focus on LED lighting. The “new semiconductor load – LED” is much easier to manage than, for example, a discharge lamp with its complicated behavior. The field is therefore now ready for semiconductor specialists to brin ...
P82623
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Lessons Learned From Generator Event Reports

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... high chopping frequency of the TLC2654 and TLC2654A (see Figure 1) provides excellent noise performance in a frequency spectrum from near dc to 10 kHz. In addition, intermodulation or aliasing error is eliminated from frequencies up to 5 kHz. This high dc precision and low noise, coupled with the ex ...
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... people’s attention in recent years. In the electrical machine and converter systems, the current distribution in the grounding net not only affects electrical machine and converter, but also affects other sub-systems or devices through coupling distributed parameters among different circuits. Paper ...
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... the VCC supply. Driving an input to +25V will cause approximately 0.32mA of current (up to 2.6mA for eight inputs) to flow back into the VCC supply. If the total system VCC supply current is less than the current flowing back into the VCC supply, VCC will rise above normal levels. In some low-curren ...
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... create the core voltage. The single-stage conversion method allows these devices to directly step down highvoltage batteries for the highest possible efficiency. Alternatively, two-stage conversion (stepping down the 5V system supply instead of the battery) at a higher switching frequency provides t ...
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CHEC Generation Guide

... islanding. Islanding is a situation where a portion of the utility system that contains both loads and a distributed generation source becomes separated from the remainder of the utility system but remains energized. The primary concern is a situation where a fault occurs on the distribution system ...
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Electrical substation



A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Between the generating station and consumer, electric power may flow through several substations at different voltage levels.Substations may be owned and operated by an electrical utility, or may be owned by a large industrial or commercial customer. Generally substations are unattended, relying on SCADA for remote supervision and control.A substation may include transformers to change voltage levels between high transmission voltages and lower distribution voltages, or at the interconnection of two different transmission voltages. The word substation comes from the days before the distribution system became a grid. As central generation stations became larger, smaller generating plants were converted to distribution stations, receiving their energy supply from a larger plant instead of using their own generators. The first substations were connected to only one power station, where the generators were housed, and were subsidiaries of that power station.
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