1. 550KV SF6 Circuit Breaker 2. SF6 gas type 3. ISO Certificated 4. IEC Standard 5. Type Test Report

550KV SF6 Circuit Breaker

1. Type: SF6 gas, dead tank  type

2. Mode: LW55-550

3. General Description

     This circuit breaker is of SF6 Dead Tank Type  which is used for making and breaking normal current, fault curremt and switching lines, so as to realize control and protection of power system. It consists of three phasea and each phase is equipped with a hydraulic mechanism to realize single-phase independently operation or three-phase electrical gang operation.

4. Environment Conditions

     a. Ambient Temperature: -30 deg.c ---+40deg.c

     b. Altitude: no more than 1000m

     c. Wind Pressure: no more than 700Pa

     d. Seismic level: no more than 9 degree

     e. Air Pollution Level: III. IV class

      f. Ice Thickness: 10mm

5. Main Features:

      a. The interrupter of its has one break, which with simple structure and high technics.

       b. It has excellent anti-seismic and pollution-resisting capabilities, and is suitable to be applied to highly polluted and high positioned areas.

        c. It is endowed with big breaking capacity, high insulation level and long maintenance-free period. The contactor has long electric endurance( braking time of rated short circuit: 20 times)

        d. The new hydraulic mechanism adapts module intergration design almost without any piping outside and effectively prevents oil leakage.

        e. The oil pressure in hydraulic mechanism is automatic control and it can not be affected  by the temperature.

         f. The closing resitance is supplied according to user's requirements.

6. Main Technical Specifications

7. Drawings

       

550KV SF6 Circuit Breaker