Answer / sundar

generally the CT draws load according to its rating,if it
is drawing more then that specified rating then there is
chance for ct saturation.

Answer / nishant

CT saturation occurs when secondary of CT is left open while
primary is carrying the line current. Enormous flux is build
up in the core due to primary current, secondary being open
there is no counter flux to control it. As a result, CT core
saturates. Hence, CT Secondary should not be left open while
primary being enerzized. It should be rather shorted by
closing CT shorting contacts.

No idea about calculation...

Answer / kiran patil

I think Ct saturates when it is short circuited

why transformer is rated in kva?

2 Answers  

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0 Answers   L&T,

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can we use optical fibre to electrical power transmission ?

1 Answers  

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Sir pl provide 5 year sample paper for post junior engineer(electrical).I have currently applied for junior engineer (electrical) on RRB Ajmer

0 Answers  

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I have two AC generators, the first rated 2680KVA for 380V/4345A/pf:0.7 and the second rated 3461KVA for 5500V/363A/pf:0.8. I want to parallel the two generator to a bus. The second generator passes through a transformer to down the voltage to 380V and a part of its power goes to another bus so that it's only a part of the total power of the second generator taht goes to the considered bus. I have two Basler DECS100 AVR regulator. How can I make the synchronization ? What others equipments must have ?

1 Answers   CST,

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can we keep open the secondary of current transformer?

1 Answers   Jyona Power,

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how the find ct mf and mf roll in metering

1 Answers  

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0 Answers  

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5 Answers   Imdaad,

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difference between local breaker backup relay or backup protection relay ?

1 Answers  

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what is impedence voltage

1 Answers   Thermax,

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Why is remote backup preferred to local backup?

0 Answers  

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