Movement indicator

It operates. 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. Other than MPD-3 type ZVT, it is similar to the distan... 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 >>

The viewpoint of the instantaneous factor operating characteristics graph

It means multiples of the settling value. For example, when an instantaneous factor operation settling value of a relay is 30 A, 100% is read as 30 A. 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 >>

Confirmation method of the start-up value

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 >>

Test method

Input from the primary side by combining with a peripheral device (ZCT). In Standard JIS C 4601, performance warranty is covered for combination of periphera... More Details >>

Combination with other companies' peripheral devices

It is impossible. In Standard JIS C 4609, warranty is covered for combination of peripheral devices and relays. Therefore, combination with other companies’ ... More Details >>

About contact

It recovers without retaining. More Details >>