VS1(ZN63A) -24 Series

VS1 (ZN63A)-24 series indoor high-voltage vacuum circuit breaker is an intelligent switchgear designed for 24kV, 50Hz indoor power distribution system, integrating protection and control functions, suitable for industrial and mining enterprises, power plants and substations of high-reliability power scenarios. Using vacuum arc extinguishing technology, short circuit current breaking capacity of 25kA-31.5kA, mechanical life of more than 30,000 operations, in line with GB/T 1984-2014 and IEC 62271-100 standards. The modular handcar design ADAPTS to the KYN series switchgear with IP4X protection class, withstands extreme environments from -25°C to +60°C, supports quick plug and pull maintenance and intelligent condition monitoring (optional), and provides a "maintention-free, long life" power protection solution.

Price：

￥0.00
Category：

Indoor High Voltage Vacuum Circuit Breaker
Browse number：

23
Release time：

2024-10-21 22:56:24
Quantity： - +
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Detailed Description

Description
VS1 (ZN63A) -24 series indoor High voltage vacuum circuit breaker is used for AC 24kV, 50Hz indoor high voltage switchgear, used as protection and control electrical equipment. This VCB is specially used for the locations of frequently operation based on the rated current, or multiple breaking short circuit current.
The VCB is equipped with KYN28A-24 handcart type switch cabinet, and the fixed type VCB can also be used for XGN series switch cabinets. It conforms to National Standard GB1984-2003, and the related IEC standards.
The circuit breaker is designed as a front-rear split charging structure, which both can be used as a fixed installation unit, and also be equipped with the chassis as used in the mounted, handcart unit.

Environment Condition
- Ambient temperature:-15℃~+40℃
- Altitude: ≤1000m
- Daily average relative humidity: ≤95%
- Monthly average relative humidity: ≤90%
- Earthquake intensity: ≤8 degree
- No fire, explosion, severe vibration, chemical corrosion and serious pollution

Technical Data

1	Rated voltage		kV	24
2	Rated frequency		HZ	50
3	Rated Current		A	630, 1250	1600,2000 2500, 3150	2000, 2500 3150, 4000
4	Rated short circuit breaking current		kA	20/25	31.50	40
5	Rated short-time withstand voltage		kV	20/25	31.50	40
6	Rated peak withstand current		kA	50/63	80	100
7	Rated short-circuit closing current		kA	50/63	80	100
8	Nos. of rated short-circuit breaking current		Times	50 (30 above 40kA)
9	Rated operating sequence			0-0.3s-CO-180s-CO/ 0-180s-CO-180s-CO(Above 40KA)
10	Rated lightning impulse withstand voltage		kV	125/145 (between phases, to earth/switch gap)
11	1min power frequency withstand voltage		kV	65/79 (between phases, to earth/switch gap)
12	Mechanical life		Times	20000
13	Contact open distance		mm	16>±1
14	Contact Over-travel (Length of spring compression)		mm	3.5±0.5
15	Rated switch-on/off operating voltage		V	AC110/220,DC110/220
16	Tripping time	Max. operating voltage	s	≤0.05
		Min. operating voltage		≤0.08
17	Closing time		s	0.1
19	Average closing speed		m/s	0.8±0.2-
20	Average opening speed		m/s	1.5±0.2
21	Contact closing bounce time		ms	≤2 (40kA ≤3)
22	Three phase contact closing opening asynchrony		ms	≤2
23	The main circuit resistance each phase		μΩ	≤50(630A), ≤45(1250A), ≤35(1600-2000A), ≤25(2500A above)
24	Allowed consumpted thickness of contacts		mm	3