Answer / narmatha

if secondary terminal is open circuited then due to absence
of counter amp-turns of the secondary,the unopposed primary
m.m.f. will be set up an abnormal high flux in the core
which will produce excessive core loss with subsequent
heating and high voltage across the secondary terminals.

Answer / pritesh

if we put ct secondary open circuited than no current will flow through it and also there will be high voltage across it which will damage it

Answer / rahul

A CT Current transformer) is used to reduce the high current on primary for measuring it with small range instruments. So its number of turns on secondary will be high. So if we open circuit the secondary it will results in very high voltage on secondary which in turn damage the CT.

Answer / ayaz ahmad khan

if the secondary terminal is open then no current flow
through secondary due to absence of load

why to need a electrical earthing?

2 Answers  

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what is %impedanece

3 Answers   KSEB, Steel Plant,

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Q. calculate the value of the resistor to be connected in series with a 100W; 230V lamp so that the wattage of the lamp is reduced to 35W

8 Answers  

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what is the power factor of the megnetising component of transformer

1 Answers   Allied Group,

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I have 800 Amps MG Fix type breaker It is in on line & it has been given only UV (under voltage)coil connection for tripping purpose.now it is not working properly means its getting tripp so how can i replace it or how can i rectify the problem without destrubing my load??????????

2 Answers  

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Is it possible to connect a dYN1 transformer in parallel with a YNd11 transformer.

4 Answers  

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what is the exact meaning of power

1 Answers   SKB,

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any idea abt REVERSE METERING concept.........?

0 Answers  

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1 Answers   Cross,

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For the same power rating,which motor is bigger in size,AC or DC?

9 Answers   Bhel,

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what is meant by CT burden = 10 VA?

1 Answers  

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during installation time of transformer and alternator which points we have to observed?

0 Answers  

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