Protection relays have different functions. They are often made up of several modules, each of which performs a specific function. In this guide, we will distinguish three types of functions: protection against abnormal variations in the main supply, protection against leakage currents, and protection against overloads.
Protection against abnormal grid variations
Abnormal voltage, current, and frequency variations can lead to problematic phenomena. These...
three-phase motor pump protection relay
SubMonitor
... pumps with horsepower ratings between 3 and 200 hp. Current, voltage and motor temperature are monitored using three integrated current transformers. A digital display provides current and voltage readings for all three ...
voltage protection relay
AM series
... programmable Logic. Rich protection functions Feeder protection; Transformer protection; Motor protection; Capacitor protection; Voltage protection; ...
voltage protection relay
XR-6 series
Tripping current: 5 mA - 5,000 mA
Trigger voltage: 5 V - 250 V
... Various supply voltages Special characteristics 1 and 2 channel relay As part of an overfill protection / leakage protection system Description The contact protection ...
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