Answer / gunasekaran

it may dangerous at full load condition because excessive
high voltage is build up in secondary so we have take
shutdown then only we have use tester or screw driver

Answer / s

if u like to change ammeter so u have to provide short link
on panel terminal....every panel having this
facility...suppose u like to use screwdriver or tester u can
use bcos there is a no voltage.....just u have to keep in yr
mind that if panel in running condition so carefully
....this type of condition occurred when u like to change
ammeter ......hope u understand

Answer / velu5185

no sec open plz short it because sec open CT ill burn

Answer / kashif saeed

it is danger to short the CT with screw driver or tester, it
is better to take the shutdown and than short the CT with
the tester or screw driver.

Answer / lokesh ranjith

before opening the ct or if ct get short circuit
we can short the ct terminals by using tester or can short
the terminals
causes no danger or else ct will blast

Answer / suresh

You should short the secondary use tester or screw driver
no prblem

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