The pickup value of relay is 6.5 Amp and fault current in relay coil is 39 Amp. Its plug setting multiplier is


Answer:(A) 6 A.

Explanation:
Plug setting multiplier is nothing but a ratio between the actual fault current in the relay operating coil to pick up current (the relay current setting). In other words, the ratio between the CT (current transformer) secondary current to relay operating current is called plug setting multiplier (PSM).
Previous Post Next Post