ZN12-12 -Zhejiang Baosn Electrical Co.,Ltd.

ZN12-12

•ZN12-12 indoors a.c. high voltage vacuum circuit-breaker, is the our company according to introduces one kind of application scope broader indoors switch product which Germany in the siemens 3AF technology base develops. It is suitable for three phase ac 50HZ, in the rated voltage 12KV electrical power system, took in the industry and mining enterprise, the power plant, the transformer substation as well as the railroad system electrical equipment control and the protection uses. To it opens breaks the ability strong, the reliability high, the structure simple, the electricity life and the mechanical life long, the maintenance simple, the service quantity few, does not pollute merit and so on environment is famous domestic and foreign, it suitablly throws cuts each kind of difference archery target load, opens breaks when the small inductance electric current the truncation flow value to be lower, also is suitable for the place which needs frequently to operate. The product satisfies standard the and so on GB/T1984, JB3855, DL/T403 as well as IEC60056 correlation request.

2、Use environmental condition
2.1 altitudes above sea level: Is lower than the 1000m
2.2 environment humidities: Highest + 40 ℃ , is lowest -15 ℃ .
2.3 relative humidity: The daily average is not bigger than 95%, the monthly mean is not bigger than 90%.

2.4 earthquake intensities: Is lower than 8 2.5 not to have the fire, the explosion hazard, non-corrosiveness gas and not fierce vibration place
3、Product main technology parameter

Serial number	Parameter name	Unit	Model
			Ⅰ	Ⅱ	Ⅲ	Ⅳ	Ⅴ	Ⅵ	Ⅶ	Ⅷ	Ⅸ	Ⅹ	Ⅺ	Ⅻ	ⅩⅢ		ⅩⅣ		ⅩⅤ
1	Rated voltage	KV	12	12	12	12	12	12	12	12	12	12	12	12	12	12		12
2	Nominal current	A	630	1250	630	1250	800	1250	1600	2000	2500	1600	2000	3150	1600		2000		3150
3	The rating short-circuits the drop-out current	kA	20	20	25	25	315	315	315	315	315	40	40	40	50		50		50
4	Moves the steady state current (peak value)	kA	50	50	63	63	80	80	80	80	80	100	100	100	125		125		125
5	4s thermally stable electric current	kA	20	20	25	25	315	315	315	315	315	40 3g	40 3g	40 3g	50 3g		50 3g		50 3g
6	The rating short-circuits the pass to gather the electric current (peak value)	kA	50	50	63	63	80	80	80	80	80	100	100	100	125		125		125
7	The rating short-circuit current opens breaks the number of times		30									30			12
8	Fixed operation sequence		O · 0.3s · CO · 180s · CO									C · 180s · CO · 180s · CO
9	Fixed lightning surge standing voltage (full wave)									kV		75
10	Fixed short work paid by time frequency standing voltage (1 minute)									kV		42
11	Gathers Floodgate time									ms		≤ 75
12	Minute floodgate time									ms		≤ 80(45)
13	Mechanical life									times		1000 6000 Ⅷ ⅩⅣ ⅩⅤ
14	The nominal current opens breaks the number of times									times		1000 6000 Ⅷ ⅩⅣ ⅩⅤ
15	Stored energy electric motor power									W		∽ 275 、 315
16	Stored energy electric motor rated voltage									V		∽ 110 220
17	Stored energy time									S		15
18	Gathers Floodgate electro-magnet rated voltage									V		∽ 110 220 ※
19	Minute floodgate electro-magnet rated voltage									V		∽ 110 220 ※
20	Stored energy type trip rated voltage									V		∽ 110 220 ※
21	Gathers Floodgate interlock rated voltage									V		∽ 110 220 ※
22	Loses presses the trip rated voltage									V		∽ 110 220 ※
23	Has flowed the trip nominal current									A		5
24	Auxiliary switch nominal current									A		AC10 DC5

Machinery debugging parameter

Serial number	Parameter name	Unit	Parameter model
Serial number	Parameter name	Unit	ⅠⅡⅢ　Ⅳ	ⅤⅥⅦⅧⅨ	ⅩⅪⅫ	ⅪⅡⅥⅤⅩⅤ
1	Contact travelling schedule	mm	11 ± 1	11 ± 1	11 ± 1	11 ± 1
2	Contact overtravel	mm	6 ± 2	8 ± 2	8 ± 2	8 ± 2
3	Gathers Floodgate speed Floodgate speed	m/s	0.5~0.9	0.6~1.1	0.8~1.3	0.8~1.3
4	Minute floodgate speed	m/s	1.0~1.4	1.0~1.4	1.0~1.8	1.0~1.8
5	The contact Gathers bounces the time	ms	≤ 2
6	Alternates with the center distance	mm	210 230 250 275 ( ± 1.5)
7	Three-phase contact minute floodgate same time	ms	≤ 2
8	Each return route resistance	μΩ	≤ 25( ± 35)

4、The contour and installs the size