Current Transformer (CT) & Potential Transformer (PT) || NTDCL Gujrat

Current Transformer (CT) & Potential Transformer (PT) || NTDCL Gujrat

Potential Transformer (PT):

• Voltage transformers (VT), also called potential transformers (PT), are a parallel connected type of instrument transformer. They are designed to present negligible load to the supply being measured and have an accurate voltage ratio and phase relationship to enable accurate secondary connected metering.

Capacitive Voltage Transformers (CVT): 

• A capacitor voltage transformer (CVT or CCVT), is a transformer used in power systems to step down extra high voltage signals and provide a low voltage signal, for metering or operating a protective relay. 

Current Transformer (CT):

• A current transformer (CT) is a type of transformer that is used to measure alternating current (AC). It produces a current in its secondary which is proportional to the current in its primary. Current transformers, along with voltage or potential transformers, are instrument transformers.