Pole Mounted 17.5kv-1250A 50Hz Vs1 Vacuum Circuit Breaker

Model NO.: Mingde VS1 Operation: Electric & Manual DC Circuit Breaker Arc-extinguishing Medium: Vacuum Structure: Vcb DC Circuit Breaker Type: Circuit Breaker Certification: ISO9001-2000, CE Rated Voltage: 17.5kv DC Circuit Breaker Rated Withstand Current(Peak): 50/63/80ka DC Circuit Breaker Mechanical Life: 10000times DC Circuit Breaker Specification: CE, ISO9001, OHSAS18001 HS Code: 8535210000 Breaking Capacity: Middle& High Voltage DC Circuit Breaker Speed: Normal Type Circuit Breaker Installation: Fixed & Handcart DC Circuit Breaker Poles Number: 3 Function: Overcurrent Protection Product Name: 17.5kv-1250A DC Circuit Breaker of Vs1 Type Rated Short -Time Withstand Current: 20/25/31.5ka DC Circuit Breaker Rated Short-Circuit Opening Current: 20/25/31.5ka DC Circuit Breaker Trademark: Mingde DC circuit breaker Origin: Cixi, Ningbo, Hangzhou DC Circuit Breaker Pole Mounted 17.5kv-1250A 50Hz Vs1 Vacuum Circuit Breaker

Prodcut Overview

1. VS1A series of vacuum circuit breakers are the Second Generation indoor switch equipment, with the rated voltage 7.2kv, 12kv, 17.5kv and 24kv.
2. VS1A series of vacuum circuit breakers adopt the integrated design of simple structure and convenient operation. 
3. It is equipped with a perfect mechanical and electrical interlock to enhance its anti-incorrect operation performance.
4. Standards: IEC62271-100, IEC56, GB1984-2003, GB/T11022, DL/T403-2000, etc Technical Specifications and Parameters
 

NO	Item		Unit	Technical data
1	Rated voltage		KV	17.5
2	Rated insulating level	Rated short time power frequency withstand voltage (1 min)		50
		Rated lighting impulse withstand voltage		95
3	Rated Frequency		Hz	50
4	Rated current		A	1250
5	Rated short circuit breaking current		KA	20/25/31.5
6	Rated short time withstand current			20/25/31.5
7	Rated peak withstand current			50/63/80
8	4S rated short-time withstand current			20/25/31.5
9	Rated peak value of current			50/63/80
10	Rated short-circuit making current(peak value)			50/63/80
11	Duration of rated short-circuit current		S	4
12	Mechanical endurance		times	10000,30000,60000
13	Rated making surge current of capacitor		KA	12.5(The frequency is less than 1000Hz)
14	Rated breaking current of single/symmetrical capacitor bank		A	630,400(40KA for 800/400)
15	Breaking times at rated short-circuit current		Times	20
16	Power frequency withstand voltage of secondary circuit		V	2000
17	Rated operating voltage			AC110/220 DC110/220
18	Rated operating order			O-0.3S-CO-180S-CO
19	Energy storage times		S	<=5
20	Clearance		mm	9 ± 1
21	Travel			3-4
22	Bounce time(making)		ms	<=2
23	Three pole making/breaking non simultaneity			<=2
24	Average breaking time		m/s	0.9~1.3
25	Average making time			0.4~0.8
26	Making time		ms	20-50
27	Breaking time			35-70
28	Contact Opening Bounce amplitude Value		mm	<=3

   
 
External Dimension
  


VS1A-7.2,12,17.5-pole center distance 150mm  

No.	Rated Voltage(kV)	Rated current(A)	Short-circuit breaking current(kA)	h1(mm)	h2(mm)	h(mm)	A(mm)	B(mm)
1	7.2,12	630-1250	20-31.5	260	205	622	438	609
2	7.2,12,17.5	630-1250	20-31.5	280	275	637	432	598

VS1A-7.2, 12, 17.5-pole center distance 210mm  

No.	Rated Voltage(kV)	Rated current(A)	Short-circuit breaking current(kA)	h1(mm)	h2(mm)	h(mm)	A(mm)	B(mm)
1	7.2,12,17.5	630-1250	20-31.5	260	205	622	438	609
2	7.2,12,17.5	630-1600	20-31.5	280	275	637	432	598
3	7.2,12	1250-1600	40	295	310	697	432	598
4	7.2,12	2000	31.5-40	295	310	697	432	598

 




 VS1A-7.2, 12, 17.5-pole center distance 275mm 

No.	Rated Voltage(kV)	Rated current(A)	Short-circuit breaking current(kA)	h1(mm)	h2(mm)	h(mm)	A(mm)	B(mm)
1	7.2,12,17.5	630-1250	20-31.5	280	275	637	432	598
2	7.2,12	1250-1600	40	295	310	697	432	598
3	7.2,12	1600-2500	25-40	295	310	697	432	586
4	7.2,12	3150-4000	31.5-40	295	310	697	432	586
5	7.2,12	3150-4000	31.5-40	295	310	733	432	586

 

 Normal Operating Environment Condition
a) Normal operating environment condition
Highest temperature:                  +40ºC
Lowest temperature:                   -15ºC
b) Environment humidity
Daily mean relative humidity:        ≤95%
Monthly mean relative humidity:     ≤90%
Daily mean saturated vapor pressure:   ≤2.2×10-3 MPa
Monthly mean saturated vapor pressure:  ≤1.8×10-3 MPa
c) Altitude: below 1000m area;
d) Earthquake intensity: no more than 8 degree;
e) The product shall be away from weep, fire and explosion, chemical corrosion and 
strenuous vibration place.


Special Operating Condition

Please consult with manufacturer on manufacturing technology when operating environment is the climatic environment with high altitude, high humidity and great temperature change or Other special environment condition.


Packaging, transportation and storage precautions
  (1) Circuit breaker should be in the state of opening and energy storage spring in a state without energy storage when packing. It should be in the state of opening and energy storage spring in a state without energy storage when packing. And it should be fixed on the bottom of the wooden case, should have waterproof measures and complete package labels.
(2) Circuit breakers can't invert and avoid strong vibration, rain, surface damage, and components lost when transportation.
(3) When loading the circuit breaker, we suggest the following tools: crane, forklift and driving. When lifting the circuit breaker, we should not hook on the body or pole of the circuit breaker, but on the lifting hole which has the lifting mark.
(4) When circuit breaker has a long-term storage, it should be in a state of opening and energy storage spring in a state without energy storage and placed in dry ventilated indoor preventing from moisture, vibration control and harmful gas erosion, and regularly checked whether environment meets the requirements.
(5)When first use products after long-term storage, it need to have a power frequency withstand voltage Insulation testing.
    

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