other
Products

Indoor 33kv 35kv 12kv Vacuum Circuit Breaker

VB5-40.5 vacuum circuit breaker is suitable for indoor switch systems with air insulation. As long as it is within the normal operating conditions and the technical parameters of the circuit breaker, the VB5-40.5 vacuum circuit breaker can satisfy the power grid in normal or accidental state Under various operations, including switching and breaking short-circuit current.

  • Brand:

    TIANYI
  • Item NO.:

    VB5-40.5
  • Order(MOQ):

    1
  • Payment:

    T/T , L/C
  • Product Origin:

    FUZHOU,CHINA
  • Shipping Port:

    FUZHOU
  • Lead Time:

    30 days
  • Product Detail

VB5-40.5 Indoor high voltage AC vacuum circuit breaker rated voltage 40.5kV, three-phase AC 50Hz and 60Hz indoor high voltage switchgear, can be used for industrial and mining enterprises, power plants and substations as electrical equipment control and protection, suitable for frequent operation place.


The manufacturing standard of VB5-40.5 vacuum circuit breaker follows the standards and specifications of GB, IEC and related publications.

- GB/T 11022
- IEC 60694  Common technical regulator for high-voltage switchgear and control equipment standards
- GB1984
- DL403
- JB3855 AC high voltage circuit breaker




The VB5-40.5 indoor high-voltage AC vacuum circuit breaker adopts an up-and-down arrangement structure, which effectively reduces the depth of the circuit breaker. The circuit breaker pole is installed vertically on the chassis with rollers. The conductive part of the main circuit of the circuit breaker is integrally cast in the epoxy resin pole, which not only protects the vacuum interrupter from environmental influences and mechanical external forces, but also reduces the volume of the circuit breaker and still meets normal operating conditions The air insulation distance and creeping distance requirements are high, and it has high reliability.

The operating mechanism adopts a spring operating mechanism specially designed for this new type of circuit breaker and is installed in the frame. Its structural characteristics are more suitable for the up and down arrangement of this type of circuit breaker, and become an integral part of the overall structure of the circuit breaker. The mechanism design is simple, the output curve is well matched with the requirements of the arc extinguishing chamber, and its performance is more suitable for 40.5KV vacuum circuit breakers. The characteristics and requirements.

The overall layout of the circuit breaker is reasonable, beautiful, concise, small in size, flexible in operation, reliable in electrical performance, long in service life, convenient in maintenance, and maintenance-free. It is suitable for a variety of occasions and workplaces with harsh operating conditions.





1、Main electrical performance parameters


NO. Item Unit Data
1 Rated voltage kV 40.5
2 Rated insulation level 1min Power frequency withstand voltage (effective value) kV 95
Lightning impact withstand voltage (peak) kV 185
3 Rated frequency Hz 50/60
4 Rated current A 630 1250 2500
5 Rated short circuit breaking current kA 25、31.5
6 Rated short-time withstand current( 4s) kA 25、31.5
7 Rated peak withstand current kA 63、80
8 Rated short-circuit making current kA 63、80
9 Rated breaking current of capacitor bank A 630(single)
10 Rated operation order O - 0.3s - CO - 180s - CO
11 Breaking times under rated short-circuit current times 50
12 Secondary circuit (1 min) power frequency withstand voltage V 2000
13 Main circuit resistance(without plum blossom contact) μΩ ≤55(630A)≤50(1250A)≤45(2500A)

2、Mechanical characteristic parameter:

NO. Item Unit Data
1 Distance between contacts mm 20 ±2
2 Contact stroke mm 7.5±1.5
3 Moving and static contactor allows accumulated wear thickness mm 3
4 Average closing speed(8mm contactor close) m/s 1.0-1.6
5 Average opening speed(0~8mm stroke) m/s 1.4-2.0
6 Opening time ms 20-65
7 Closing time ms 20-75
8 Three - phase contactor opening and closing simultaneity ms ≤2
9 Three - phase contactor opening asynchronous ms ≤2
10 Contactor closing bounce time ms ≤5
11 Contactor opening bounce range mm ≤2
12 Buffer stroke mm 13 ± 1
13 Mechanical life times 30000



1. Altitude: ≤1000m.

2. Surrounding air temperature: upper limit +40 ° C, lower limit -25 ° C (alpine region) and -1 ° C (general region).

3. Relative humidity of surrounding air: when the maximum temperature is +40, it is not more than 50%. When the temperature is low, it is allowed to have a large relative humidity. Due to the change of temperature, it may occasionally has condensation effect.

4. Outdoor wind speed shall not exceed 34m/s.

5. The slope of the ground shall not exceed 3°.

6. The horizontal acceleration of the earthquake shall not more than 0.4m/s, and the vertical acceleration shall not morn than 0.2m/s;

7. The installation site shall be free from fire, explosion, serious pollution, chemical corrosion and violent vibration.

Note: if the actual conditions of use cannot be met, please negotiation with the manufacturer.



VB5 Solid sealed pole


Schematic diagram of solid-sealed pole


VB5-40.5 Indoor high voltage AC vacuum circuit breaker

VB5-40.5 Vacuum Circuit Breaker Appearance Diagram






Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
# Related Products
Circuit breaker manufacturer
VB5(ZN21B) vacuum circuit breaker
VB5(ZN21B) vacuum circuit breaker is based on the introduction of Belgium EIB vacuum circuit breaker technology products, after several years of technical research and process exploration, put into mass production in 1993. VB5(ZN21B) and its series products have excellent advancement and reliability. Rated frequency50/60 Hz,Rated voltage 12kV.
Vacuum Circuit breaker price
10kV Vacuum Circuit breaker VB5
VB5 (ZN21B) 10kV vacuum circuit breaker has excellent performance in occasions that require frequent operation and need to break short-circuit current. It fully meets the requirements of automatic reclosing and has extremely high operational reliability and service life.
indoor Vacuum Circuit breaker supplier
24kV Indoor Vacuum Circuit breaker
24kV Indoor Vacuum Circuit breaker is based on the introduction of vacuum circuit breaker technology from Belgium EIB in 1989. After several years of technical research and technological exploration, it was put into mass production in 1993.
AC Vacuum Circuit breaker supplier
High Voltage 40.5kV AC Vacuum Circuit Breaker
VB5(ZN21D) indoor high-voltage AC vacuum circuit breaker is an indoor high-voltage switchgear with rated voltage of 40.5kV and three-phase AC 50/60Hz. It can be used as the control and protection of electrical equipment in industrial and mining enterprises, power plants and substations, and it is suitable for frequent operation.
Vacuum circuit breaker manufacturer
Indoor Vacuum Circuit breaker VB5-Small Type
VB5 vacuum circuit breaker with rated frequency 50/60 Hz,mechanical lifemore than 20000 times
switchgear components breaker price
Switchgear Components Breaker VS1
Switchgear components breaker VS1 typeis suitable forthree-phase AC 50Hz and 60Hz indoor high voltage switchgear, can be used for industrial and mining enterprises, power plants and substations as electrical equipment control and protection, suitable for frequent operation place.
column circuit breaker
ZW8/630 Outdoor High Voltage Vacuum Circuit Breaker with electric Column isolation switch
ZW8/630 outdoor high voltage vacuum circuit breaker is suitable for 50Hz three-phase power system, mainly used for breaking and closing the load current, no-load current and short-circuit current of the urban 10kV power grid. It can also be used as a sub-switch for rural power grids and small power systems. It is an updated product for urban and rural power grids and rural oil-free power systems.
10kV Vacuum Circuit breaker price
630A/1250 High Voltage Handcart 10kV Vacuum Circuit breaker
VS1 indoor high-voltage vacuum circuit breaker is an indoor switchgear with a three-phase AC 50Hz rated voltage of 12kV power system. It is used as a protection and control unit for power grid equipment and industrial and mining enterprise power equipment. It is suitable for places requiring frequent operation under rated working current, or multiple interruption of short-circuit current.
Leave a message
Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

Home

Products

about

contact