10kV MV Indoor SF6 Circuit Breaker/Permanent Magnet Mechanism Type VVS-12kV-630A

EXVS-12kV/630A

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1. Features of permanent magnet mechanism:
(1) Long life (mechanical life up to 100,000 times)
(2) The reliability of the equipment is high due to fewer parts.
(3) The consistency of the equipment is better.
(4) The opening speed is fast, and it has the function of quick opening.
(5) Independent patented design, leading technology level.

2. Use environmental conditions:
a) Ambient temperature: upper limit +60℃; lower limit -25℃.
b) Altitude: the altitude is not higher than 1000m.
c) Relative humidity: the daily average value is not more than 95%, the monthly average value is not more than 90%; the saturated vapor pressure: the daily average value is not more than 2.2 kPa, and the monthly average value is not more than 1.8 kPa.
d) Earthquake intensity: less than magnitude 8.
It is required to be installed in a place without fire, explosion hazard, corrosive gas and severe vibration. This product complies with GB1984"High Voltage AC Circuit Breaker"standard.

3. Technical parameters
Table 1 Technical parameters

Item		Unit	Data
Rated voltage		kV	12
Rated frequency		Hz	50
Rated insulation level	1min power frequency withstand voltage	kV	42/48
	Lightning impulse withstand voltage		75/85
Rated current		A	630（1000；1250）
Partial discharge value (14.4kV/1min)		pC	≤5
Rated short-time withstand current		kA	20（25；31.5）
Rated peak withstand current		kA	50（63:80）
Rated short-circuit current duration		S	4
Rated short-circuit current breaking times		times	30
Rated thermal stability time		S	4
Mechanical life		times	10000
Rated energy storage voltage		V	AC/DC: 24V;48V;110V;220V
Rated closing and opening operating voltage		V	AC/DC:24V;48V;110V;220V

Table 2 Mechanical parameters

Item	Unit	Data
Clearance between open contacts		8.5±0.3
Contact overtravel	mm	2.5±0.5
O/C asynchronous	ms	≤2
Contact closing bounce time	ms	≤2
Phase distance	mm	(150;180;200;230;250;275;300)±1.0
Closing speed	m/s	0.8±0.2
Opening speed	m/s	1.6±0.2
Closing time	ms	≤50
Opening time	ms	≤15 (Inherent time less than 5)
Controller energy storage time	s	＜5

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