Definite Time Earth Leakage Relay JRC 974

Additional Details

JRC 974 provides earth leakage protection for power systems. The relay operating time is determined by a programmable definite time delay. The relay measures the earth leakage current from the CBCT and if it exceeds the set threshold, it extends a trip signal after the operating time. The relay output contacts are self reset type. TEST button facilitates verification of relay contacts.

Features:

Bar graph indication of leakage current

Remote reset and test facility

Wide range of settings

Low burden

Application:

The relay provides time graded earth leakage protection for generators, transformers, capacitors, feeder etc

Operating characteristics : 

0.03 to 0.1A in steps of 0.01A

0.3 to 1.0A in steps of 0.1A

0.03 to 0.1A in steps of 0.01A

0.15 to 0.5 in steps of 0.05A

0.3 to 1.0A in steps of 0.1A

1.5 to 5.0A in steps of 0.5A

Current rating ( In ) :

0.03 to 0.1A /0.3 to 1.0

0.03 to 0.1A / 0.15 to 0.50A

0.3 to 1.0A/ 1.5 to 5.0A

110V/220V AC