SEPAM M20 Schneider Protection

[graovacb]

Good day to All,

I already posted this topic but in the wrong section of this forum so I'll do here again. This is first time I deal with this type of relay (I've met ABB, Areva, Siemens) and we have problem during the motor start-up. Since that start time is longer than definite time set for 50/51 the protection trips due to 50/51 during start-up. The real motor start current is greater than threshold of 50/51.
My question is there any possibility to disable 50/51 (or to double like for ABB REM610) during start-up? Motor data are 6,6kV, 500kW, 53A.

Thanks

 

[davidbeach]

The forums are often slower on the weekends than during the week. Plus you have to wait for somebody to show up that has ever actually used that relay. Sounds like a relay to stay away from.