March 2024
Intermediate to advanced
480 pages
13h 35m
English
book
Electric Power Distribution Engineering, 4th Edition
by Turan Gönen, Chee-Wooi Ten, Ali Mehrizi-Sani
Content preview from Electric Power Distribution Engineering, 4th Edition
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B Standard Device Numbers Used in Protection Systems
Some of the frequently used device numbers are listed in the following. A complete list and definitions are given in ANSI/IEEE Standard C37.2-1079.
Master element: normally used for hand-operated devices
Time-delay starting or closing relay
Checking or interlocking relay
Master contactor
Stopping device
Starting circuit breaker
Anode circuit breaker
Control power-disconnecting device
Reversing device
Unit sequence switch
Synchronous-speed device
Underspeed device
Speed- or frequency-matching device
Shunting or discharge switch
Accelerating or decelerating device
Electrically operated valve
Distance relay
Temperature control device
Synchronizing or synchronism-check ...
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