short pulse-shaped leakage

English to Serbian Tech/Engineering Electronics / Elect Eng

Three-phase motors

If the motor is connected to an electric installation where an earth
leakage circuit breaker (ELCB) or ground fault circuit interrupter
(GFCI) is used as additional protection, thiscircuit breaker or
interrupter must be of the following type:
• It must be suitable for handling leakage currents and cutting-in
with short pulse-shaped leakage.
• It must trips out when alternating fault currents and fault
currents with DC content, i.e. pulsating DC and smooth DC
fault currents, occur.
For these motors an earth leakage circuit breaker or ground fault
circuit interrupter, type B, must be used.