12kv outdoor HV AC vacuum circuit breaker

Outdoor AC vacuum circuit breaker is used to make and break load current, overload current and short-circuit current in12kV, 50/60Hz power system. It is applicable for substations, industry and mining, urban and rural electricity power networks, especially applicable in occasions with frequent operation and automatic power distribution network.

General:

With overload and short circuit protection function, to meet the requirements of control and measurement, but also to achieve remote control and monitoring functions.It accords with the standard of IEC62271-100 &GB1984-2014:AC high voltage circuit breaker,IEC60694 &GB/T11022:HV general technical requirement of switch and control apparatus

Service Environment

Altitude:≤2000mm;
Ambient temperature: -40℃~+45C;
Earthquake intensity:8degree;
Ice thickNess:10mm;
Wind speed: 34m/s (air pressure 700Pa).

Key Feature

Manual brake opening device
Epoxy resin package
No maintenance, the application of bistable permanent magnet technology
The switch housing is made of stainless steel or sprayed plastic

Technical Data

Name		Unit	Data
Rated voltage		kV
Rated insulating level	1min P.F withstand voltage-(phase to phase, to earth; across open contacts)		dry	42/48
			wet	34
	Lightning impulse withstand voltage peak (phase to phase, to earth;)		75
	Lightning impulse withstand voltage peak ( across open contacts )		85
Rated frequency		Hz	50
Rated current		A	630、1250
Rated short-time withstand current		kA/4S	20、25
Rated short-circuit breaking current		kA	20、25
Rated short-circuit making current			50、63
Rated peak withstand current(peak)			50、63
Rated operating sequence		/	O-0.3s-CO-180s-CO
Breaking time of rated short-circuit breaking current		times	30
Mechanical duration			Permanent magnet mechanism 30000, spring mechanism 10000
Abrasions thickNess of contacts		mm	3
Net weight		kt	70