voltage transformer

Voltage Transformer: Learn the Purpose, Cost, and Lead Time to Procure

Substation Equipment / By / / 2 minutes of reading

Relays need to know the voltage magnitude – either for metering or protection. A voltage transformer fulfills this role – it steps down thousands of volts to 67V/115V in high voltage stations (at the medium voltage the VT’s step it down to 120V) which is then fed to a relay.

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Voltage Transformer

Grounding And Shielding Cables – Best Practices In Wiring Equipment In A Substation

Substation Design / By / / 2 minutes of reading

Any relay that receives CT input, be it from the breaker bushing, transformer bushing, or a stand-alone CT bushing – needs to have its neutral circuit grounded. Grounding shall be done at only one location along the entire length of the circuit.

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