Chapter 7
Thermal Generating Plants
7.1 Plant Auxiliary System 7-2
Selection of Auxiliary System Voltages • Auxiliary System Loads • Auxiliary System Power Sources • Auxiliary System Voltage Regulation Requirements
7.2 Plant One-Line Diagram 7-3
7.3 Plant Equipment Voltage Ratings 7-3
7.4 Grounded vs. Ungrounded Systems 7-3
Ungrounded • Grounded • Low-Resistance Grounding • High-Resistance Grounding
7.5 Miscellaneous Circuits 7-4
Essential Services • Lighting Supply
7.6 DC Systems 7-4
125 V DC • 250 V DC
7.7 Power Plant Switchgear 7-4
High-Voltage Circuit Breakers • Medium-Voltage Switchgear • Low-Voltage Switchgear • Motor Control Centers • Circuit Interruption
7.8 Auxiliary Transformers 7-6
Selection of Percent Impedance • Rating of Voltage ...
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