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Problem Solving Guidelines
Problem Solving Guidelines

... If the power is positive (p>0), power is being delivered to the circuit inside the box. If the power is negative (p<0), power is being extracted from the circuit inside the box. ECE 201 Circuit Theory I ...
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ILSCOPedia \ Electrical Industry Terminology
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Logic: From Greeks to philosophers to circuits. COS 116 3/14/2005
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... Joe is correct. Thousands of volts of electricity is CERTAINLY dangerous if the source contains enough energy, but a comb can’t store enough electrical energy to be dangerous. Everyday static electricity is commonly generated at several thousand volts - in fact, it must be very high voltage for a sp ...
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Lecture 36

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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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