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Voltage transformer primary neutral open circuit

Voltage transformer primary neutral open circuit

Voltage transformer primary neutral open circuit

(OP)
dear friends,

can somebody help me to understand the following qury.

a 3 phase voltage transformer 66kv / 110V :
One end of VT primary is energized with high voltage and second end which normally brings to make neutral point.
What will happen if primary neutral is open?

RE: Voltage transformer primary neutral open circuit

It's potentially a dangerous situation. The voltage on the neutral end of the primary winding can/will rise up to some voltage that could cause the insulation to fail at that point. That could lead to a catastrophic failure.

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