how the testing of CT OF 400/200/100 done in33/11 kv s/s

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how the testing of CT OF 400/200/100 done in33/11 kv s/s..

actually the ct used in ss is in the range of 400-200-
100/1A.THE MAIN TESTS CONDUCTED ON CT'S ARE TWO 1.IR VALUES
FINDING TEST AND 2.RATIO TEST
1.IR VALUES ARE FINDING THROUGH 0.5,1,2.5,5KV STEPPED
MEGGER.GENERALLY IN APTRANSCO USES MOTARISED RIKEN MAKE
MEGGER.
2.RATIO TEST CAN BE CALCULATED BY PRIMARY CURRENT INJUCTION
KIT.
AND THE 3. GENERAL TEST IS POLARITY TEST.

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