Incoming/outgoing cubicle with drawer circuit breaker

It is used for the purpose of protection of MV line. Protection is provided with current transformer, relay, drawer circuit breaker. When on the set of values it ??gives the breaker opening or closing command.

Content

Busbar: copper units that connect the equipment to each other.

Load Break Switch(switch disconnector); Medium-voltage switchgear devices that are capable of opening and closing under load . Active parts of them has been made from epoxy resin and MV switchgear devices  located into the hopper within the SF6 gas filled with a sealed pressure system.   There is 3 position; open, close and earthing. Earthing switch in the SF6 gas has the ability of closing on by-pass.

Earthing switch: Provides connection between electrical circuits that are not under tension and earth. It is air-insulated.

Drawer Circuit Breaker: A circuit element capable of opening and closing under all kinds of loads including by-pass. Its mission; to cut off load flow when it closes. It protects the circuit against by-pass etc. It has 3 poles. All active components are within the enclosure filled with SF6 gas. There are varieties of front-and side-mechanism. It can be displaced to reinsert as fast as 3 seconds and built on a slide.

Current Transformer: It reduces to the desired value for the purpose of protection or measuring the current of the busbar. It is used as epoxy resin or set of LPCT. Its ends are not left open.

Relay: It is used for the purpose of operating the related mechanisms, measuring instruments  and human-machine interfaces according to vectorial values converting the energy in the busbar to the analog or digital signal.

Voltage Indicators: lighting panel of the capacitive voltage indicator showed that there is any energy on the cable connection point in cubicle is on side of front of the cubicle .

Heater : It prevents to occur moisture drying the air.