What will be happend if we not ground CT secondary?
Answers were Sorted based on User's Feedback
If the secondary of the CT is not grounded or short circuited
then the secondary current will become zero hence the ampere
turns produced by secondary will oppose the ampere turns of
primary(i.e brings to zero). So, there is no counter m.m.f so
high flux is produced in the core thus overheating of core is
produced. Similarly high e.m.f will be produced both in
primary and secondary this will damage the insulation of
winding. Thus for safe operation for the operator the
secondary must be grounded properly
Is This Answer Correct ? | 11 Yes | 2 No |
One terminal of secondary of CT is earthed to remove the
influence of high voltage of primary on secondary due to
inherent capacitance between them .
Is This Answer Correct ? | 3 Yes | 1 No |
i have done my b.tech in 2009 .still hunting for a job...wat shud i answer if intervevwr asks..(what u have done 1yr)
All tape of electrical questions Answers tape of motor transformer e.o.t crane
0 Answers Afcons, Honeywell, Manlift, SIMS,
What is full form of ELECTRICAL?
3 Answers Changwoon, DP World, Electrical, GSS, HCL, ITI, L&T, Maruti Suzuki, MCC, SMR, Somany Ceramics, TRDP, Wipro,
What is generator
how to select the power contactor in Diffrent AC motors.
why the voltage transmission is always in a multiple of 11? e.g. 110 V, 220 V, 33 kVA, 11 kVA
if 300 hrs not comleted at wat interval b.c,d checks og take place
Can a generator runs after getting 1st stator earth fault.
What is hysteresis losses?
How wti of transformer works?
what is the formula for 3 phase motor starting cureent deatials 3phase 148A delta 415v, efficiancy 94% can we run the motor with 200A incoming supply
A separately excited dc motor having 2 ohm armature resistsance draws a current of 10A and torque developed is 20 Nm under rated field condtion. the speed of the motor under the rated field condtion , when it is connected to a 100V DC source and delivering 10Nm torque....