Voltage AC SF6 Circuit Breaker40.5KV

General:

Live tank AC HV SF6 breaker is kind of 3 phase AC 50HZ outdoor type breakers. The gas of the SF6 is employed as the arc-extinguishing medium and the dielectric material.. The breaker is the regenerate type of oil type breaker.The current transformers inside are used for measuring and protecting the breaker.

Service Environment

• Altitude: ≤3000m.

• Ambient temperature: -30℃ ~ +40℃.

• Pollution grade: Class II, Class III, Class IV.

• Relative humidity: the daily average is not more than 95%, the monthly average is not more than 90% (25℃).

• Wind pressure: not more than 700Pa (equivalent to 34m/s).

• There are no inflammable substances, explosion hazards, chemical corrosion and violent vibration

• Key Feature

• The product has excellent breaking performance, adopts pressure type arc extinguishing chamber, short arc time, long electrical life, and continuously breaks 31.5kA short circuit current up to 21 times without maintenance and without replacing sulfur hexafluoride gas; High mechanical reliability.

• Mechanical life of more than 3000 times; Can be frequently operated, each set can be installed 12 current transformers, for users to choose.

• The product uses a new MKZ type SF6 pointer density meter, the pressure gauge reading is not affected by temperature changes, easy to use.

• The circuit breaker meets the requirements of the national standard GB1984-89 "AC high Voltage Circuit breaker" and the International Electrotechnical Commission standard IEC56 publication "High voltage AC Circuit breaker". The product is equipped with CT14 spring mechanism.

Technical Data

Drawing