How CT & PT ratings are decided for a 11KV or 33KV
transmission line?

Answer Posted / pradeep kumar

ct decied as per metering OR protection ct Use ct as per
metering that we can use the metering instrument of panel
OR control room 1A OR 5A

Is This Answer Correct ?    13 Yes 4 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is the standard duration after failure EB power

1345


explain with diagram how to protect transformers and substations from over current with help of CT's?

1497


If a rotary UPS is in line through grid power; What would be the impact on Power Factor if the load through rotary ups is 25% , 50% , 75% & 100%. Will the power factor reduce with less load?

1413


Explain RLC circuit?

732


whats the application of voltage regulation? and whats the voltage regulation's device?

1403






why the neutral point in connnection oscillates?

1803


i have flexible wire. size of conductors is 0.190 mm & no.of conductors are 48. then size of wire comes 1.37 sqmm instead of 1.5 sqmm . the what is tolerance for this size.

1315


Explain with example of functional requirements of protection relay in terms reliability, selectivity, sensitivity

1376


can u give me a brief idea about power line carrier communication ??

1385


why do we use 25kv supply for traction purpose?

1503


what is tri state logic gate

1608


A 500 V shunt motor runs at its normal speed of 250rpm when the armature current is 200A. The resistance of the armature is 0.12 Ω. Calculate the speed when a resistance is inserted in the field reducing the shunt field to 80% of normal value and the armature current is 100A.

2011


What is the difference between AC and DC injection methods for rotor earth fault protection

1680


i want to know d working mechanism of tafe tractors next i like to know d engine type of apache bighs can anyone help me

1797


whati s the sludge current in ups

1696