How switchyard can be useful for power transmission

What is a switchyard

Switchyard is a switching station which is the main link between the generating plant and the transmission system. It can be considered as the heart of the power plant, the generated power will only be worthy if it can be transmitted and received by the consumers

Switchyard is a junction which carries the generated power to the destination, it plays a major part in the security of the system, it can control the reactive power devices which plays a major role in power quality

It is mostly an assemblage of switches, power circuits, breakers, and the auxiliary equipment which is used to collect power from the generators at the power plant and then it will be distributed to the transmission lines at a load point

Types of switchyard

  • Conventional air insulated type
  • Gas insulated type
  • Outdoor gas insulated type

Purpose of a switchyard

Switchyard is an open area where many different kinds of equipment are located such as an isolator, circuit breaker… and it is used for the connecting and disconnecting of the transmission lines as per the requirement. switchyards main role is to transmit the generated power to the destination. the power will be switched through isolators, bus bars…

Equipment in a switchyard

  • Current transformer
  • Voltage transformer
  • Lightning arrester
  • Power transformers
  • Isolators
  • support structure
  • Circuit breaker
  • Wave traps
  • Earthing switch
  • Bus bar

Difference between switchyard and a switchgear

switchgear consists of electrical disconnect switches such as fuses or circuit breakers, which is used to control protect and isolate the electrical equipment. in case of fault conditions for the system, protection switching must be done to the open lines.

Switchgears are devices which are used for the switching, protection and controlling of an electrical circuit

But switchyard is entirely different from it. maybe switchgear can be a piece of equipment in a switchyard, the transmission of the power which is generated in a power plant is done by the help of a switchyard it acts as a junction where the power transmission takes place.