Sepam series 20, 40.80
Suitable for common applications, Sepam series 20 offers simple solutions
based on current or voltage metering.
b protection of substation incomers and feeders against phase-to-phase and
phase-to-earth short-circuits
v 16 IDMT tripping curves
v adjustable timer hold to detect recurrent faults
v switching of groups of settings to adapt to changes in the network configuration
b protection of overhead lines with built-in recloser function
b protection of transformers against overloads, with ambient temperaturecompensated
RMS thermal overload protection with 2 groups of settings for different
ventilation operating rates
b protection of motors
v against overloads, with ambient temperature-compensated RMS thermal overload
protection with a cold tripping curve that can be adjusted to fit motor characteristics
v against internal faults and load-related faults
v with motor starting condition monitoring and machine operation assistance.
The Sepam series 20 B21 and B22 voltage units are suitable for the following
situations:
b monitoring of network voltage and frequency
b loss of mains detection by rate of change of frequency protection for installations
with local power generation.