Movement indicator

It operates. More Details >>

Movement of contact

This relay uses the input voltage at the VT secondary side (P1-P2) as the relay control power source. When a rated voltage is input, b contact side of the co... More Details >>

Scope of Application

It is impossible. Because the type is to detect by ZCT in an ungrounded system, the sensitivity becomes very high. More Details >>

Combination transformer

That is described as below. (1) By laying ZCTs for two feeders having different loads, detected by one earth fault directional relay. In this case, it i... More Details >>

Combination transformer

It is required that the resistance is lower than 5 ohm for a go and return length using sealed cables. The high voltage receiving facility rule defines “The ... More Details >>

Confirmation method of the start-up v...

Set the display selection switch on the front upper right of the relay to “Time limit pass.” When a relay detects near the operation value, “0” will be displ... More Details >>

Position of switch

The prohibition position sets the maximum settling value. With the definite time current, all prohibition positions set 6 A, and with the instantaneous curre... More Details >>

Rated current

In CT circuit, it is 5 A. More Details >>

Short-circuit detection

Overload tolerance of an over current relay is 200 A, 1 second. Adjust CT ratio and others not to input more than 200 A. More Details >>

Detection of current

It operates on a root mean square value of a fundamental wave. More Details >>