Zhejiang Pingchao Electric Co.,Ltd

40.5KV Vacuum Circuit Breaker

Indoor VCB 33-40.5KV Vacuum Circuit Breaker

Indoor VCB 33-40.5KV Vacuum Circuit Breaker

ZN23-40.5 series handcart type indoor vacuum circuit breaker for the high life rated 40.5kA, three-phase AC 50Hz indoor high-voltage electrical equipment....
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ZN23-40.5 Indoor VCB 33-40.5kV Vacuum Circuit Breaker

General Introduction

ZN23-40.5 series handcart type indoor vacuum circuit breaker for the high life rated 40.5kA, three-phase AC 50Hz indoor high-voltage electrical equipment. Apply to industrial and mining enterprises, substation and transmission and distribution systems for control and protection switching; particularly suitable for metallurgy, electric arc steel-making industries, etc. frequent operation required, as a control and protection equipment. This product meets the GB 1984-89 “AC High Voltage Circuit Breaker” standard. Circuit breaker directly into the GBC-35, JYN1-35 cabinet, remove the plug can be installed separately

 

Working Conditions

1. Altitude: ≤1000m;

2. Air temperature: -15°C ~ +40°C;

3. Relative humidity: daily average is not more than 95%, saturated vapor pressure daily average is not more than 1.8kPa.

4. Earthquake intensity: not more than 8.

5. Installation places: No fire, explosion hazard, serious filthy places.

6. In the second system, the amplitude of induced electromagnetic interference does not exceed 1.6kv

7. Power condition: DC 110V, 220V; AC 110V, 220V


Technical Specification

No

Item

Units

Technical parameters

1

Rated voltage

kV

40.5

2

Thunder impulse withstand voltage(peak value)

kV

185

3

lmin industrial frequency withstand voltage

kV

95

4

Rated frequency

Hz

50

5

Rated current

A

1250,1600,2000

6

Rated short-circuit break current

kA

25

31.5

7

Rated peak value withstand current

kA

25

31.5

8

Rated peak value withstand current

KA

63

80

9

Rated short-circuit duration time

s

4

10

Rated short circuit breaking time

ms

11

Rated short circuit closing current

kA

80

12

Rated operation order

0-0.3s-C0-180s-C0

13

Time of closing brake

ms

50~85

14

Time of breaking brake

ms

40~85

15

Rated short-circuit current break and close times

Times

20

16

Mechanical life-span

Times

10000

17

Rated dropout current of condenser bank

A

630

18

Rated power of energy-storage electric machine

W

275

19

Rated volt of energy-storage motor

V

25 ± 2

20

Storage time

S

≤15

21

Closing and opening solenoid rated voltage

V

≈220,110

22

Loss of pressure tripping device rated voltage

V

≈220,110

23

Over current tripping device rated current

A

5

24

Auxiliary switch rated voltage current

A

DC10

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