In what circumstanced the CT used for protection relay will
be saturated?and what will happen to the relay is the CT is
saturated?

Answer Posted / nilamani

if we will operate the CT in open circuit then due to heavy
magnetising current due to primary winding will effect the
saturation ll be affected.

Is This Answer Correct ?    5 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you

1502


Why is better to have a minimum ceiling voltage of 250% than 160%?

1386


HOW MANY TYPES OF FUSE?

1629


What is difference is of VSD,VFD,VSDS, are they the same as the direct current to control dc using above mention

984


we have two motors 1250kW,6.6kV to be coupled on the same shaft ,so please provide assistance for their synchronisation.

1616






what is earthing.how we make it,describe briefly.

1939


what are the advantage and dis-advantage of 3 phase 4 wire energy meter?

1452


In which working principal temperature transmitter work.explain in detailed.

1815


what is apparent poewr, reactive power, & active power?

1714


How much minimum insulation required between 11kv/3.3kv transformer windings?

1960


What is the current carrying capacity of 0SWG,3SWG,10 & 12 SWG solid bare overhead copper conductors?

2938


What is the kiosk parts, about them and their functions ? If anybody have some PDFs files or details about this plz send it on tawhidfaisal@Yahoo.com

1386


pls tel me the electric train traction motors name plate details like rpm,torue,voltage,amps,watts..ect..

1544


WHY EXCITER PHASE SEQUENCE ARE OPPOSITE THAN STATOR SUPPLY PHASE SEQUENCE IN SYNCHRONOUS MOTOR >

1426


Whar is the KvA rating of 33Kv substation & actual kv rating of power generaating station.

1875