High Voltage Switchgear Components

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High voltage switchgear components.

It has the functions of overhead access cable entry and exit and bus connection. As a result during the designing of this equipment special care has to be taken. High voltage switchgear hv the power system which deals above 36kv is called hv high voltage switchgear. The cabinet is composed of a casing electrical components.

They also include the related circuitry that controls monitors and protects the components of power conducting. When a high voltage conductor passes through a metal sheet or frame which is at earth potential the necessary insulation is provided in the form of the electrical bushing. Gas insulated high voltage switchgear gis is a compact metal encapsulated switchgear consisting of high voltage components such as circuit breakers and disconnectors which can be safely operated in confined spaces. It consists of two parts.

The cabinet and the circuit breaker. Faulty tripping and switching operation of high voltage circuit breakers are comparatively very rare. High voltage circuit breaker is the main component of hv switchgear hence high voltage circuit breaker cb should have special features for safe and reliable operation. When the level of voltage increases then the arcing will be generated as the switching operation is extremely high.

It is one of the major switchgear components. Control systems like current transformers control panels protective relays and potential transformers. No one should work on the system itself or on any plant controlled by it without obtaining authorisation and work permit from the responsible person. High and low voltage switchgear should meet the relevant requirements of gb3906 1991 3 35 kv ac metal enclosed switchgear standard.

High voltage circuit breakers such as sf6 circuit breaker or vacuum circuit breaker are the main component of hv switchgear. There are two types of components of switchgear including. Faulty tripping and switching operation of high voltage circuit are very rare.