WHAT HAPPEN WHEN CT SECONDARY OPEN DURING LOAD

Answer Posted / ravi kimar.a

the secondary of CT open means, as the transformer
secondary will atempt to continue driving current across
the effectively infinite impedence.
this will produce a high voltage across open secondary
(range of several KV in some cases)which may cause arcing.

Is This Answer Correct ?    5 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

explain the types of drives

1755


I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?

1407


Can we Co-ordinate relay in Load Break switch?

1681


What is cross over distortion? How it can be eliminated?

991


hi guys please tell me the procedure for mesuring the coil resistance of 3ph induction motor?

1620






what is the difference between linear choke and suction choke?

2366


what is the difference between the characteristics of two different phase bushing of any transformer

1529


what is the function of statics switch in ups and tell me parts

1727


What happened when voltage will half value of current ...

1313


It is desired to flood light the front of a building 42 meters wide and 16 meters hig.Projectors of 30 degree beam spread and 1000 watt lamps giving 20 lumen/watt are availabl.If the desired level of illumination is 75 lumen/m and show a suitable scheme.Assume the cofficient of utilization, deprecitation factor and waste light factor are 0.4, 13 and 1.2 respectively.

3472


What is the use of mc( moving coil) in dc voltmeter and dc ammter and what is the use of ( moving iron)in ac voltmeter nd ac ammeter

2578


how can you size an automatic voltage regulator?

2049


In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.

2037


Why do we require transformer with less specific weight if supply frequency is increased?

1313


what is the ATS .And how it works.

1263