Electric Power Generation, Transmission, and Distribution

field current increases suddenly by 3 to 5 times, decaying in tenths of a second. The stator voltage on the shorted phases drops ...

These persist as the motor comes up to speed, similar to but not identical to starting an induction motor. Similarities exist to ...

for soft-starting the synchronous motor or condenser. Special design and control are employed to avert problems imposed, such as ...

6 Thermal Generating Plants Kenneth H. Sebra Baltimore Gas and Electric Company 6.1 Plant Auxiliary System...................... ...

transformers and buses is at best a matter of guesswork. The plant electrical system should be sized at 5 to 10% the size of the ...

6.1.4 Auxiliary System Voltage Regulation Requirements Most plants will not require voltage regulation. A load flow study will i ...

operate after a loss of off-site power. Some of these loads may be supplied by an on-site diesel generator or gas turbine if a d ...

6.7.2.3 Medium-Voltage SF6 Circuit Breakers SF6 circuit breakers have the same advantages as vacuum circuit breakers but there i ...

6.8.2 Rating of Voltage Taps Transformers should be supplied with taps to allow adjustment in bus voltage. Optimum tap settings ...

6.10.1 Associated Equipment 6.10.1.1 Exciters and Excitation Equipment The excitation system will normally be supplied with the ...

6.12.4 Phasing A phasing diagram should be made to determine correct transformer connections. An error here could prevent busses ...

7 Distributed Utilities John R. Kennedy Georgia Power Company 7.1 Available Technologies ....................................... ...

based. Figure 7.1 is a listing of different technologies, their size ranges, fuel sources, and AC interface type, and most likel ...

Most of the present technologies have a fuel reformer or processor that can take most hydrocarbon- based fuels, separate out the ...

Another requirement of microturbine systems is that the shaft must spin at very high speeds, in excess of 50,000 RPM and in some ...

7.4 Combustion Turbines There are two basic types of combustion turbines (CTs) other than the microturbines: the heavy frame ind ...

7.5 Storage Technologies Storage technologies include batteries, flywheels, ultra-capacitors, and to some extent photovoltaics. ...

Utility requirements vary but generally depend on the application of a distributed source. If the unit is being used strictly fo ...

7.6.2 Self-Commutated Inverters These inverters, as implied by the name, are self-commutating. All stand-alone units are self- c ...

organizations. As these begin to disappear, and a new structure with multiple competing parties emerges, distributed utilities m ...