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  • Users: rohra
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  1. rohra

    Soft start bypass

    I fully agree with Anand Shekhar,Capability /Stability of System should be first analysed for DOL start. The deisgn could be such that in case of any fault in Soft starter ,the softstarter contactor should get opened & give command fot Bypass contactor to Close. is that the thing Anand. In VFD's...
  2. rohra

    General info on On Load Tap Changer

    Dear JLuc, we are using OLTc for trnsformers that are 75 MVa & 220KV/33 KV,star-star.There are two transformers in parallel. we have Remote tap changing Cubicle (RTCC) seperate for both Transformers.Auto voltage relay senses & gives command to cahnge the taps in Auto.its setting has to be done...
  3. rohra

    Earth leakge relay

    Many a times Motor feeders in LV & MV are contactor type having Earth leakage relay as protection relay.In motors which have both Phase fault & earth fault Relays (overcurrent & earthfault) earth fault is residually connected thanks

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