is necessary grounding CT without connection?
is necessary grounding CT without connection?
(OP)
You have CTs of power system with secondary windings without the use. So you have to short-circuit them.
Question: do you have to ground them either?
Question: do you have to ground them either?






RE: is necessary grounding CT without connection?
RE: is necessary grounding CT without connection?
RE: is necessary grounding CT without connection?
RE: is necessary grounding CT without connection?
do you mean that with capacitive coupling , there will be transfer voltage from primary to secondary?
RE: is necessary grounding CT without connection?
RE: is necessary grounding CT without connection?
RE: is necessary grounding CT without connection?
I am just receiving a drawing of CT connection for governor.
Each phase-CT is connected to phase current CT channel of governor digital system.
It is not a three-phase Y-connection(3Ph+1N wiring).
They are connected completed independent.((2+2+2=6 wiring).
There is no ground for neutral because there is no neutral.
Each pair of wire are shielding , with the shelding grounded.
Is this an exception?
RE: is necessary grounding CT without connection?
In power transformers, there is a similar case.When stabilising tertiary( unloaded) with all the three terminals are brought out,it is recommended to earth one corner of the delta tertiary.This is done just to drain away the charges on shut down otherwise some one climbing over the transformer tank soon after shut down may get a nasty shock on touching the tertiary terminals.