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....
power protection relay
A Line
... terminals, draw-out relay boards with short circuiting of the current. Output Relays Two versions are provided: Standard version: the output relays are deenergized on normal ...
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Microelettrica
Microelettrica
earth-leakage protection relay
X35DB34DCX112
Tripping current: 30 mA - 5,000 mA
Trigger voltage: 230 V
... earth leakage relays, type B earth leakage relays are able to detect residual currents with both DC and AC components. This relay is used in conjunction with a trip ...
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