** Proprietary ** dear sir , i am facing problem that whenever we are changing the supply from DG to = electricity board my other incomer ocb's are tripping sometime one = /sometime two or may three . on the incomer there is no relays/reaise (magnetic) except shunt realse . =20 ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu