Zw7-40.5kv 1250-2000A Vacuum Circuit Breaker for Pole Transformer with Current Transformer Polymer Insulator

Item No.: 00207
1.connect spring operating structure or electromagnetic actuator structure,
2.remote controlelectric points, closing, o local manual energy storage, manual, closing. Design and performance in line
3. The overall structure of the product for the porcel
Description
Description

 ZW7-40.5 outdoor high-voltage vacuum circuit breaker is a kind of outdoor high-voltage switchgear under three-phase AC 50Hz, 36kv rated voltage and below. It can be used to switch on and off the loading, overloading and short-circuit current.

Features:

1. Storage, making and breaking by motor, It can operating by handle.

2. Breaking short-circuit current up to 25kA.

3. Mini motor spring mechanism (about 30W).

4. Installation method: adopt two type installation method.

5. Sealing performance: adopt reliable sealing technical.

6. Incoming & Outgoing method: adopt porcelain bushing to make enough insulate distance.

7. Safe operating: there is an equipment to protect explosion.

1.connect spring operating structure or electromagnetic actuator structure,
 2.remote controlelectric points, closing, o local manual energy storage, manual, closing. Design and performance in line
 3. The overall structure of the product for the porcelain post type vacuum interrupter with porcelain, porcelainvases under pillar Suita ble for frequent operation place. 
4.it has the advantages of good sealing performance.aging resistance, high pressure resistance, no burning, no explosion, long service life, easy installation andmaintenance

Techincal data:

No.

Item

Unit

Data

1

Rated voltage

KV

               40.5

2

Rated current

A

  1250,1600,2000

3

Rated short-circuit breaking current

KA

         20,25,31.5

4

Rated insulation level

Power frequency withstand voltage 

Dry

KV

               95

Wet

KV

               80

Lightning impulse withstand voltage (peak value)

KV

              185

5

Rated operating sequence

 

O-0.3s-CO-180s-CO

6

Rated  capacitor group breaking current

A

              400

7

Rated short-circuit breaking current

Time

               20

8

Rated peak withstand current

KA

         50,63,80

9

Rated short - time withstand current

KA

        20,25,31.5

10

Rated Short-circuit Continuing Time

S

                4

11

Machinery life

Time

            10000

12

Permissible gross wearing thickness  for dynamic/static contacts

mm

                3

 

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