all 3 current transformers (C.T) are burnt in a L.T Panel -
what are the possible reasons
Answer Posted / animesh daripa
Suddenly disconnected the load from L.T side. The secondary of a current transformer is not disconnected from its load while current is flowing in the primary, as the transformer secondary willattempt to continue driving current across the effectively infinite impedance up to its core saturation voltage. This may produce a high voltage across the open secondary
| Is This Answer Correct ? | 8 Yes | 4 No |
Post New Answer View All Answers
What is the reason for using a GE G101 MCB in place of an EP102 MCB if both are capable of AC circuit protection?
I HAVE A 50A MCCB AS PER DESIGN LINE WIRE CONNECT UPWORD SIDE AND LOAD IS CONNECTED TO DOWNWARD SIDE TO THE MCCB.IF NOW ANY ONE CHANGE SUPPLY & LOAD(WISEVERSA) WHAT HAPPENS ? DOES MCCB OPERATION OR WORKING FUNCTION NORMAL IF YES THAN WHY THERE ARE MARKED LINE & LOAD ON MCCB.
While performing stability test of differintial cts how to know the voltage and current on both side of the transformer?
how we explain parallel paths armature winding?
What determines the thickness of the lamination or stamping?
1)what is the function of a frequency inverter? 2)If a few frequency inverter are connected onto a device network,what are the two setting that will ensure the frequency inverter work properly on the network. 3)whats is the name of the input sensor for weigher? 4)How to confirm that the load cellis faulty? 5)Describe briefly the steps to validate that the weigher is working properly? 6)Describe the procedure to validate the flowmeter accuracy? 7)Describe briefly the steps to validate that the tempreture sensor/transformer is working properly. 8)what is the adjustment that need to be done when you are calibrating the temperature transmitter ? 9)what are the safety measures to be taken before disconnecting motor for rewinding. 10)whats is the synchronous speed in rpm of typical 4pole 50hz motor? 11)whats is the formula for kw, ohm's law 12)if a 3phase motor is rated 3kw,415vac,what is it's rated ampere?
difference between semiconductor & conductor & insulator?
What is current divider rule (cdr)?
Is a d.c.compound motor is use as a booster? how?
In 11/0.414 KV Parralel supply network with Bus tie closed what will be the fault level is it doubled or halved??
in a silicon diode we can measure .7v in a voltmeter.but why we can't use this voltage for using?
how ct burden,magnetising current,ratio and knee point voltage are related & derived
why the earth is taken minimum in supplying? wather it the proportional factor to getting work any equipment or a power plant?
how we can set the IDMT relay.
Can we use both Electrical & mechanical interlock between tow breakers? if yes how, please explain