12KV 20KA Indoor HV Circuit Breaker 630A 1250A AC Insulated Metal Clad Switchgear AIA-1 manufacturer from China Jubang Electric Group Co., Ltd.

12KV 20KA Indoor HV Circuit Breaker 630A 1250A AC Insulated Metal Clad Switchgear

Place of Origin:

Guangdong, China (Mainland)


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Product Detail

Model No.: AIA-1

12KV 20KA Indoor HV Circuit Breaker 630A 1250A AC Insulated Metal Clad Switchgear

12KV 20KA Indoor HV Circuit Breaker 630A 1250A AC Insulated Metal Clad Switchgear

Technical specifications

No.	Item	Unit	Data
1	Rated voltage	kV	12
2	Rated frequency	Hz	50
3	Rated lighting impulse withstand voltage (peak)	kV	75
4	Rated short time withstand voltage (1 min)	kV	42
5	Rated short time breaking current	kA	20	25	31.5
6	Rated current	A	630 1250	630 1250	630 1250 1600
7	Rated short time withstand current (virtual value)	kA	20	25	31.5
8	Rated peak withstand current (peak)	kA	50	63	80
9	Rated short-circuit closing current (peak)	kA	50	63	80
10	Rated short-circuit current duration	s	4
11	Rated short-circuit current breaking time	times	50 (for 40KA is 30)
12	Mechanism life	times	2000
13	Secondary circuit power frequency withstand voltage (1 min)	V	2000
14	Rated operation order		O-0.3S-CO-180S-CO
15	Rated unit/back-to-back capacitor bank breaking current	A	630/400
16	Rated capacitor bank closing inrush current	KA	12.5(frequency is not higher than 1000HZ)
17	Contact opening distance	mm	11±0.1
18	Contact supper travel	mm	3.5±0.5
19	Contact closing tripping time	ms	≤2
20	Three-phase breaking /closing non-synchronism	ms	≤2
21	Average switch-off speed	m/s	1±0.2
22	Average switch-on speed	m/s	0.6 +0.2 -0.1
23	Switch-off (rated voltage)	ms	20~60
24	Switch-on (rated voltage0	ms	30~70
25	Rated switch-on/off operating voltage	V	AC110/220,DC110/220
26	Energy storage motor rated voltage	V	AC110/220,DC110/220
27	Motor rated rate of work	W	70 (40KA 100W)
28	Energy storing time	s	≤15
29	Contact erosion limit	mm	3
30	Break-brake rebound amplitude	mm	≤3
31	Main conducting loop resistance	μΩ			≤45
32	Contact switch-on pressure	20KA			(2000±200)N
		25KA			(2400±200)N
		31.5KA			(3100±200)N

Description:

1, the circuit breaker adopts solid insulation sealing method, meet the requirements of normal operation under the condition of the insulation, and effectively reduced the volume of circuit breaker, the overall layout is reasonable, beautiful, concise;

2, operation mechanism, USES the spring mechanism that is designed for this new type of circuit breaker, the output curves to the demands of the arcing chamber cooperate good, its performance is more suitable for the characteristics and requirement of 12 kV vacuum circuit breaker, has the very high reliability, long service life, convenient maintenance, free maintenance;

3, circuit breaker handcart can easily move in the switch cabinet, the handcart stroke range is accurate and reliable; Supporting force machinery artesian, satisfies the requirement of switchgear "five prevention" function;

4, with long service life, convenient maintenance, no pollution, no explosion danger, and low noise, apply to is quite harsh operating conditions of the workplace.

Competitive Advantage:

<> ISO9001 quality management system
<> ISO14001 environmental management system
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