China Wholesale Vacuum Circuit Breaker 33kv 50a Vcb Manufacturer – VSG-12 Indoor High Voltage Vacuum Circuit Breaker – Timetric

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China Wholesale Vacuum Circuit Breaker 33kv 50a Vcb Manufacturer – VSG-12 Indoor High Voltage Vacuum Circuit Breaker – Timetric Detail:

Summary:

VSG-12 Indoor High Voltage Vacuum Circuit Breaker(abbr.: circuit breaker) is three-phrase A.C. 50Hz indoor of power supply distribution equipped with the rated voltage 12 KV. This product is in accordance with GB1984-2003( high voltage A.C. circuit breaker),JB3855-1996 (3.6-4.5KV indoor A.C. high voltage circuit breaker), DL403-2000(technical conditions for ordering of 12-40.5KV high voltage vacuum circuit breaker) and IEC standard 62271-100:2001( high volage A.C. Circuit breaker). It can be used for protecting and controlling equipment in the grid equipment and the dynamic design of industrial and mining enterprise .It is suitable for switching load and frequent operation with different property and with the capability of many times operations of breaking short-circuit current.

Main Technical Parameters

Sequence number	Name		Unit	Data
*	Type		/	□Handcart Type with Embedded Pole□Handcart Type with Insulated Cylinder □Fixed type with Embedded Pole □Fixed type with Insulated Cylinder
1	Rated voltage		kV	12
2	Rated frequency		Hz	50/60
3	Rated insulating level	1min power frequency withstand voltage	kv	42
3	Rated insulating level	Rated lightning impulse withstand voltage	kv	75
4	Rated current		A	630	1250	1600	2000	2500	3150	4000
5	Rated short circuit breaking currentRated thermal stability current(effective value)		kA	20
				25	25
				31.5	31.5	31.5	31.5	31.5
						40	40	40	40	40
										50
6	Rated short circuit making current（peak value）Rated dynamic current(peak value)		kv	50
				63	63
				80	80	80	80	80
						100	100	100	100	100
										125
7	Rated short circuit current breaking times		times	30,50
8	Rated thermal stability time		s	4
9	Rated operating sequence		times	0-0.3s-C0-180s-C
10	Mechanism life		times	30000
11	The breaking current of single rated capacitance bank		A	400
12	The breaking current of rated back to back capacitance bank		S	4

Drawing 1A :

Rated current(A)	630	1250	1600
Rated short circuit breaking current(A)	20,25,31.5	20,31.5,40	31.5,40
The primary distance between phrases is 210mm.

Drawing 1B:

Rated current(A)	1600	2000	1600
Rated short circuit breaking current(A)	31.5,40
The primary distance between phrases is 275mm.

Drawing 1C:

Rated current(A)	2500	3150	4000
Rated short circuit breaking current(A)	31.5,40	40	40,50
The primary distance between phrases is 275mm.

Drawing 2A :

Rated current(A)	630	1250
Rated short circuit breaking current(A)	20,25,31.5	20,31.5,40
	Φ35	Φ49
The mesh size between fixed and movable contacts should be not less than 15-25mm, the primary distance between phrases is 150mm.

Drawing 2B:

Rated current(A)	630	1250	1600
Rated short circuit breaking current(A)	20,25,31.5	20,31.5,40	31.5,40
	Φ35	Φ49	Φ55
The mesh size between fixed and movable contacts should be not less than 15-25mm, the primary distance between phrases is 210mm.

Drawing 2C:

Rated current(A)	630	1250	1600
Rated short circuit breaking current(A)	20,25,31.5	20,31.5,40	31.5,40
Dimension of mating fixed contact(mm)	Φ35	Φ49	Φ55
The mesh size between fixed and movable contacts should be not less than 15-25mm, the primary distance between phrases is 275mm.

Drawing 2D:

Rated current(A)	2500	3150	4000
Rated short circuit breaking current(A)	31.5,40	40	40,50
Dimension of mating fixed contact(mm)	Φ109
The mesh size between fixed and movable contacts should be not less than 15-25mm, the primary distance between phrases is 275mm.

Ambient condition:

1. Altitude:≤1000m
2. Ambient temperature:-15°C~+40°C
3. Relative humidity: daiy average ≤95%, monhly average ≤90%
4. Earthquake intensity:≤ 8 degree
5.Applicable occasions should free from inflammables, explosives, corrosives and severe vibration.

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