12kv AC Vacuum Circuit Breaker outdoor

General:

Permanent magnet switch is composed of vacuum switch body, single stable permanent magnet operating mechanism and intelligent controller, so it has a wide range of cooperation and flexible and convenient action program setting mode, with high reliability and safety, is a new type of "electromechanical integration" intelligent high voltage switchgear with control and protection functions.

Service Environment

• Altitude:<2000mm;

• Ambient temperature:-40C~+45℃

• Wind speed: 34m/s;

• Earthquake intensity:<8degree;

• Ambient pollution: IV;

• Ice thickNess:10mm;

• Applicable occasions should be free from inflammables, explosives,corrosives and severe vibrations.

Key Feature

• The circuit breaker adopts three-phase pillar structure

• Operating mechanism adopts miniaturized spring operating mechanism

• The circuit breaker can be equipped with a two-phase or three-phase current transformer

Technical Data

• Name			Unit	Data
  				12kV
  Rated voltage			kV	12
  Rated current			A	630、1250
  Rated insulating level	1min. PF withstand voltage	dry	kV	42(across open contacts:48)
  		wet		34
  	Lightning impulse withstand voltage(peak)		kV	75(across open contacts:85)
  Rated short-circuit breaking current			kA	20、25
  Rated short-circuit making current (peak)			kA	50、63
  Rated peak withstand current			kA	50、63
  4s rated short-time withstand current			kA	20、25
  Rated operating sequence				O-0.3s-CO-180s-CO
  Breaking times of rated short-circuit breaking current			times	30
  Mechanical duration			times	10000
  Rated voltage of energy storage motor			V	DC or AC220、DC110、48、24
  Rated operation voltage			V	DC or AC220、DC110、48、24
  Abrasions thickNess of contacts			mm	3
  Rated current of over-current release			A	5
  Current transformer ratio				200/5.400/5.600/5 (Protection degree: III class, Class:0.5)

Drawing