For monitoring the insulation resistance of unearthed control circuits.
Intended for the use in secondary 6-110 kV schemes with AC or DC power system.
Functionality
Provides monitoring of current leakage in AC/DC circuits.
Provides integrity monitoring of circuits for gas-actuated protective device, auxiliary circuits of busbar protection logical schemes or CBFP circuits. Rated control supply voltage 220 V AC/DC.
Advantages
Range of adjustment: 50-1050 µA, with 50 µA step.
Precise adjustment by front-face operating controls .
Blocking the trip signal, when the current of monitored circuit is more than 2 mA.
Output relay has a normally-closed and normally-opened contacts
