Modular switchgear

They are medium voltage switchgear used for reliable distribution of electricity in 12kV, 24kV and 36kV secondary distribution systems according to different customer requirements. BEG air-insulated modular cells are also known as metal-enclosed modular cells; It is extremely suitable for use in monoblock concrete pavilions, precast concrete pavilions, sheet metal pavilions and mod buildings. Due to the suitable modular structures for easy installation, the BEG metal-enclosed modular switchgear can easily meet all the needs of the switching center; can be activated quickly. In these switchgears, the busbars are insulated with air and the electrical disconnection and breaking operations are performed in an SF6 gas or vacuum environment. In this way, maximum security operation can be achieved at minimum level. The BEG metal-enclosed modular switchgear features a metal compartment (PM) structure, LSC2B loss of service continuity category, and AFL internal arc classification structure. SF6 gas or vacuum circuit breaker and SF6 gas switch disconnector are preferred by customers as they meet the highest level of user and system safety.
Type BEG MMMH

Nominal voltage 12 kV24 kV36 kV

Nominal network frequency continuous voltage (1 min) (phase to phase) 28 kV50 kV70 kV

In the separation range (contacts open) 32 kV60 kV80 kV

Nominal lightning impulse withstand voltage75 kV125 kV170 kV

85 kV145 kV195 kV in the lightning impulse withstand voltage separation range

Frequency50/60Hz50/60Hz50/60Hz

Rated current630-1250 A*630-1250 A*630-1250 A*

Rated short-circuit current (1s)(3s)16-20 kA16-20 kA16-20 kA

Rated active load weighted breakdown current630 A630 A630 A

Rated transmission current630 A630 A630 A

Rated short-circuit current 40 kA-peak40 kA-peak40 kA-peak

Mechanical strength classM1/M2M1/M2M1/M2

Electrical resistance classE3/E2E3/E2E3/E2