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ZW32 series outdoor high-voltage vacuum circuit breaker 12KV 24KV VCB

 
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Product Description

 ZW32-12 outdoor high-voltage vacuum circuit breaker is an outdoor power distribution equipment with a rated voltage of 12kV and three-phase AC 50Hz. It is suitable for protection and control in power distribution systems of substations and industrial and mining enterprises, as well as places where rural power grids are frequently operated. It can also be used as power distribution, control of ring network power supply units and terminal equipment, and protection of electrical equipment. When the circuit breaker is combined with the disconnector, it can also be used as a section switch. It is mainly used to break and close the load current, overload current and short-circuit current in the power system. The vacuum interrupter adopts patented sealing technology, and the external insulation adopts silicone rubber bushing, which has long service life, high reliability, good weather resistance, convenient transportation and high cost performance. The operating mechanism is a miniaturized, highly reliable spring operating mechanism with simple structure and a mechanical life of 20000 times. If the advanced permanent magnet mechanism is adopted, the mechanical performance will be more stable and reliable; It can also be equipped with a manual opening and closing mechanism, which can be manually opened and closed on site when necessary.

 The circuit breaker can be matched with the controller to form a recloser, realizing the "four remote" functions of remote control, telemetering, remote signaling and remote adjustment.

 Product features: no combustion and explosion hazard, maintenance free, small size, light weight (less than 100kg), long service life (10000 times), safe and reliable, simple operation, convenient maintenance and installation

1.Ambient air temperature: - 40 ℃~+40 ℃;

2.Daily temperature difference: Daily change 25 ℃;

3.Altitude: No more than 2000m;

4.The wind speedshall not exceed 34m/s (equivalent to 700pa on the cylinder surface);

5.Pollution level IV;

6.No frequent violent vibration, and the seismic intensity shall not exceed 8 degrees;

7.Places without fire, explosion and chemical corrosion.

Name

Unit

Parameter

Rated voltage

kV

12

Rated frequency

Hz

50

Rated current

A

630

1250

Rated short-circuit breaking current

kA

20

25

Rated peak withstand current

kA

50

63

Rated short-time withstand current

kA

20

25

Rated short-circuit making current (peak value)

kA

50

63

Mechanical life

Time

10000

Rated short-circuit breaking current breaking times

Time

30

Power frequency withstand voltage (1min): (wet) (dry) interphase、to ground/fracture

kV

30/42/48

Lightning impulse withstand voltage (peak value) interphase、to ground/fracture

kV

75/85

1min power frequency withstand voltage of secondary circuit

kV

2

1. Transportation

 During transportation, the whole set must be put into a closed packing box and fixed. During transportation, it shall not be overturned or tilted, and shockproof measures shall be taken.

2. Storage

 The vacuum circuit breaker on this column shall be kept in a dry, ventilated, moisture-proof, shockproof and anti harmful gas room. If it is stored for a long time, the environment shall be checked regularly to see if it meets the requirements. Packing, unpacking and storage shall be carried out in a dry room, and products and components shall be checked for completeness and conformity.

The user shall indicate:

 When ordering, the product model and rating, mechanism operation mode and voltage level, technical parameters and quantity of transformer shall be stated.The user can select the corresponding function configuration according to the use requirements.
 Change, accuracy level, capacity, electronic PT, remote controller, surge suppressor, distribution controller, disconnector and other functions of current transformer.

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