Page 135 - Practical Power System and Protective Relays Commissioning
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134 Practical Power System and Protective Relays Commissioning
FIGURE 12.1 Horizontally-upright mounted disconnect switch.
FIGURE 12.2 Vertically-mounted disconnect switch.
12.1.1 Load Break Switches
A load break switch is a type of DS that can open or close on specified load
currents. It is normally used to energize or de-energize a circuit that has
some magnetic or capacitive currents as a transformer excitation current and
high-voltage transmission cables with capacitive current.
