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Home > Products > Circuit Breaker > Indoor 24kv High-Voltage Fixed Type Circuit Breakers of Vs1 Series

Indoor 24kv High-Voltage Fixed Type Circuit Breakers of Vs1 Series

Basic Info

Model No.:  vs1

Product Description



Model NO.: vs1


Operation: Manual and Electric Type Vacuum Circuit Breaker


Arc-extinguishing Medium: Vacuum


Structure: Vcb Vacuum Circuit Breaker


Type: Circuit Breaker


Certification: ISO9001-2000, CCC, Ohsas 180001


Rated Frequency: 50Hz Vacuum Circuit Breaker


Mechanical Life: 10000 Cycles Vacuum Circuit Breaker


Transport Package: Wooden Case (900*900*1000mm)


Origin: Zhejiang Ningbo Vacuum Circuit Breaker




Breaking Capacity: High and Medium Voltage Vacuum Circuit Breaker


Speed: Normal Type Circuit Breaker


Installation: Fixed and Handcart Type Vacuum Circuit Breaker


Poles Number: 3


Function: Overcurrent Protection


Rated Voltage: 24kv Vacuum Circuit Breaker


Rated Current: 630/1250/1600/2000/2500A Vacuum Circuit Breaker


Trademark: Mingde Vacuum Circuit Breaker


Specification: ISO9001/OHSAS/OHSMS 18001


HS Code: 8535210000


Indoor 24kV High-voltage Fixed Type Circuit Breakers of Vs1



Indoor 24kv High-Voltage Fixed Type Circuit Breakers of Vs1 Series



Product Overview



VS1(ZN63A) series vacuum breaker is of indoor High Voltage Switchgear suitable for 12kV .Three-phase power system with 50Hz frequency in order to protect and control electrical appliances, and especially suitable for frequent operation at rated current or incessant open circuit due to unique advantages of vacuum circuit breaker.

Spring operating mechanism and breaker body parts adopt integration design. Thank for this design, breaker not only can be a fixed installation unit, but also can be a withdraw-able unit with a specially pushing framework. For meet the requirement of XGN2, GG1A cabinet, the fixed type breaker can be install additionally interlock.



Main Technical Parameters



Item unit Data
Rated voltage kV
24
1 min power frequency withstand voltage kV 65
Lightning impulse withstand voltage kV 125
Rated frequency Hz 50
Rated current A 630,1250,
1600,2000
2500
Rated short-time withstand current kA 20,25,31.5
Rated peak withstand current kA 50,63,80
Rated short-circuit breaking current kA 20,25,31.5
Rated short-circuit closing current kA 50,63,80
Rated short-circuit duration S 4
Contact over-travel mm 3.5±0.5
Clearance between open contacts mm 131±1
Average opening speed m/s 1.3±0.3
Average closing speed m/s 0.8±0.2
Opening time ms 35-60
Closing time ms 20-45
Rated operation sequence O-0.3s-CO-180s-CO(<40kA)/
O-180s-CO-180s-CO(≥40kA)
Mechanical life cycles 10000




External Dimensions



Indoor 24kv High-Voltage Fixed Type Circuit Breakers of Vs1 Series

VS1A-24kv-pole center distance 210mm



No. Rated Voltage(kV) Rated current(A) Short-circuit breaking current(kA) h1(mm) h2(mm) h(mm) B(mm)
1 24 630 20-31.5 325 310 768 747
2 24 1250 20-31.5 325 310 768 747
3 24 1250 31.5-40 345 310 768 747
4 24 1600 20-40 345 310 768 747







Indoor 24kv High-Voltage Fixed Type Circuit Breakers of Vs1 Series




VS1A-24kv-pole center distance 275mm



No. Rated Voltage(kV) Rated current(A) Short-circuit breaking current(kA) h1(mm) h2(mm) h(mm) B(mm)
1 24 630 20-31.5 325 310 768 747
2 24 1250 20-31.5 325 310 768 747
3 24 1600 20-31.5 345 310 768 747
4 24 1600-2500 20-31.5 345 310 813 737





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.

Indoor 24kv High-Voltage Fixed Type Circuit Breakers of Vs1 Series

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