What are the functions of VCB, SF6, CT, PT, and LA?

Question

Accepted Answer

VCB, SF6, CT, PT, LA are all electrical equipment used in power systems.

VCB stands for Vacuum Circuit Breaker and is used for switching and protection of electrical power systems.
SF6 is a gas used as an insulating medium in high voltage electrical equipment such as circuit breakers, switchgear, and transformers.
CT stands for Current Transformer and is used to measure electrical current in power systems.
PT stands for Potential Transformer and is used to measure electrical voltage in power systems.
LA stands for Lightning Arrester and is used to protect electrical equipment from lightning strikes.

Accepted Answer

1) VCB- VCB is used for Switching as well as protection of the Connected equipment.
2) CT - CT is used for Protection & Metering equipment.
3) PT- PT is used for Protection & Metering equipment.
4) LA- LA is used for Protection of High voltage.

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