Voltage and current transformers are special transformers which are used for measurement and protection purpose. The bus bars are classified into many types according to substation rating. Bus bars are also integral part of a power distribution substation which are used to collect the electrical power before distributing it into primary feeders. There are interlock between the isolator and circuit breaker to grantees that isolator are opened before the circuit breaker because the isolators are not equipped with arch extinguished mechanisms. Isolators are used to provide the visual isolation after already disconnecting the circuit with circuit breakers. There are many types of circuit breakers i.e. Circuit breakers are used to connect & disconnect the power supply. Transformers are very first part of any power distribution substation step up or down the voltages before distributing the electrical power into load centers. Batteries to supplies protecting and measuring relaysĬomponents Of A Distribution Substation – Brief Details.Control panel and communication devices.Below is the list of substation components. Till now we have talked about the basic introduction of substations and their types now let us see a little bit in detail the components of a typical substation. For indoor substations circuits are isolated using fiber and integrated papers. On the other hand in the indoor substation all the main circuits including the high and low voltages circuits are located inside the specially constructed building excluding the power transformers. In the outdoor substation all the circuits are located in the external space and the circuits are isolated using the air. On the other hand distribution substations are used to step down the medium sub-transmission voltages to low voltages which are suitable for distribution purposes for end user convenience.Īlso substations can be classified as indoor & outdoor substations. Transmission substations are used to transform the high transmission voltage into lower high voltage or even medium voltage before delivering the power to distribution centers. In electrical engineering terms there are two famous & main types of distribution substations. Facilitate the disconnection of some of subsystem (such as transformer, transmission line) to achieve maintenance, programming tests or even extension works using disconnection switches at the substation.Regulate the power system voltage using the tap changer with the power transformer, capacitors and reactors.Step down the high and medium voltages to value suitable for distribution at the customers’ level.Facilitate the connection of different generation station into electrical power grid.
#Substation optical isolator professional#
As an electrical engineer or professional you already know that an electrical or distribution substation is very important components of any power distribution system.