Vsg1-12 Vacuum Circuit Breaker, Indoor Type

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Withdrawable
• Structure: Vcb
• Model NO.: VSG1-12
• Poles Number: 3 Pole
• Type: Circuit Breaker
• Function: Short-Circuit
• Certification: ISO9001-2000, CCC
• Transport Package: Plywood
• Trademark: Talent
• Origin: China
• HS Code: 8535210000
• Production Capacity: 5000 Pieces/Year

Product Description

VSG1-12 Vacuum Circuit Breaker, Indoor type
1.General
1.1 Ratings:rated voltage 12KV, rated current 630A~1250A, AC50HZ
1.2 Application: for the control and protection of substation and equipments; making and breaking short-circuit current under various operating status of electric network.
1.3 Standard: IEC62271-100
2. Type and Interpretation
3. Working condition
3.1 Ambient air temperature: -25~40ºC
3.2 Altitude:≤2000m
3.3 No operating in such as subject to dust, dirt, smog, corrosive/flammable gas, vapor and salt pollution.
3.4 Humidity: Daily average value ≤95%
                      Monthly average value ≤90%
3.5 Water vapor pressure: Daily average value ≤2.2Kpa
3.6 The external shocking and earthquake could be neglected.
3.7 The amplitude of electromagnetic interference in the secondary system ≤1.6KV
Note: Customized products are available on your requirements.
4.Main technical parameter

Item	Unit	Data
Rated voltage	KV	12
Rated              1min power frequency withstand voltage(vacuum open contacts) insulation         Lightening impulse withstand voltage(vacuum open contacts) level	KV KV	42 75
Rated frequency	HZ	50
Rated current	A	630,1250
Rated short-time withstan current	KA	16,20,25, 31.5
Rated withstand current(peak)	KA	40,50,63
Rated short-circuit breaking current	KA	16,20,25
Rated short-circuit making current	KA	40,50,63
Rated duration of short-circuit	S	4
Rated operating sequence		O-0.3S-CO-180S-CO
Mechanical life		M2 class(30000times)
Rated voltage of operating power		AC 220/DC 220
Full breaking time		≤70
Electrical life		E2 class

5.Overall and Installation Dimension
5.1 overall and installation dimension of fixed type circuit breaker


Alternative parameters table1

Rated voltage	Rated current	Rated short-circuit	P	A	B	D
KV	KA	breaking current, KA	mm	mm	mm	mm
12	630,1250	20,25,31.5	150	20	410	450

Alternative parameters table2                           

Rated voltage	Rated current	Rated short-circuit	P	A	B	C	D	W
KV	KA	Breaking current, kA	mm	mm	mm	mm	mm	mm
	630	20,25						35
12	630,1250	20,25,31.5,40	150	494	456	490	502	49

 

Series Number	Symbol	Name	Remark
1	YQ-Y9	Indirect over-current release	Chosen  element
2	Y1-Y4	Rectifier element
3	KO	Inner mechanism anti-jumping relay
4	P	Handle operation mechanism
5	Y1	blocking eletromagnet	Chosen element
6	HQ	Closing release
7	TQ	Breaking release
8	M	Energy storing engine
9	S9	assistant switch used at operation position
10	S8	assistant switch used, at test positin	Chosen element
11	S2	Blocking electromagnet assistant switch
12	S1	Inching switch for energy storing
13	QF	assistant switch of breaker contact