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Mingde Electrical (Shanghai) Co., Ltd.

Circuit Breaker, Vacuum Circuit Breaker, Breaker manufacturer / supplier in China, offering Pole Mounted 17.5kv-1250A 50Hz Vs1 Vacuum Circuit Breaker, 24kv-2500A Vs1 Vacuum Circuit Breaker with Ce Approval, 12kv-4000A Vmd Vacuum Circuit Breaker and so on.

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

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

Purchase Qty.:
(Pieces)
1-99 100+
FOB Unit Price: US $1,280 US $1,020
Purchase Qty. (Pieces) FOB Unit Price
1-99 US $1,280
100+ US $1,020
Get Latest Price
Production Capacity: 22000PCS/Year DC Circuit Breaker
Transport Package: Wooden Case Packing (900*900*1000mm)
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • 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
Product Description

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
  

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


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)
17.2,12630-125020-31.5260205622438609
27.2,12,17.5630-125020-31.5280275637432598




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


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)
17.2,12,17.5630-125020-31.5260205622438609
27.2,12,17.5630-160020-31.5280275637432598
37.2,121250-160040295310697432598
47.2,12200031.5-40295310697432598

 




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

 
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)
17.2,12,17.5630-125020-31.5280275637432598
27.2,121250-160040295310697432598
37.2,121600-250025-40295310697432586
47.2,123150-400031.5-40295310697432586
57.2,123150-400031.5-40295310733432586
 

 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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