Complete three-phase encapsulated design with single break per phase
◆ Harmonic and consistent operating mechanism portfolio for circuit breaker as well as for disconnector and earthing switch
◆ Lightweight enclosures of aluminum with good conductivity, no eddy-current losses and a high resistance to corrosion
◆ Proven metal-to-metal flange connections, ensuring high gas tightness and return-current conductivity
◆ Increased personnel safety and electromagnetic compatibility
◆ Short erection times and high reliability, by providing large transport units assembled and tested in the factory
◆ The ways of installation is very flexible either horizontal or vertical

Rated voltage

252kV

Rated current

2000A 2500A 3150A 4000A

Rated frequency

50 Hz

Rated short-time withstand current(3s)

50kA

Rated peak withstand current

125 kA

Rated short-circuit breaking current

50kA

Rated making current

125kA

Rated power frequency withstand voltage(1 min.)

460kV

Rated lightning impulse withstand voltage

1050kV

Leakage rate/ year and gas compartment

≤ 0.5%

Operating sequence

O-0.3s-CO-180s-CO

Ambient temperature

-25…+ 40 ℃