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Outdoor high voltage vacuum circuit breaker ZW7-40.5
Outdoor high voltage vacuum circuit breaker ZW7-40.5

>Outdoor high voltage vacuum circuit breaker ZW7-40.5

Categories
High Voltage Vacuum Circuit Breaker
MOQ
5
Brand
Johsun
FOB port
Shanghai,Ningbo
Terms of Payment
Western Union,T/T,Paypal
Deliverytime
15 working days

Description

ZW7-40.5 outdoor high-voltage vacuum circuit breaker is used for three-phase power system with ac 50Hz and voltage of 40.5kv, for breaking and closing load current, overload current and short circuit current. 

 

Working conditions

1.the ambient air temperature: cap+ 40℃, the minimum - 30℃;

2.Altitude: 2000m(if elevation is needed, the rated insulation level shall be increased accordingly); 

3.Wind pressure: not exceeding 700Pa(equivalent to 34m/s wind speed); 

4.amplitude: seismic intensity 8 degrees;

5.Pollution level: level III;

6.the maximum daily temperature difference: no more than 25℃.

 

Model and meanings

 

Features and advantages

1.Vacuum arc extinguishing, strong breaking ability, long electrical life and 10,000 mechanical life;

2.simple structure, no maintenance, no long maintenance cycle; 3, good insulation performance, anti-pollution ability; 

4.can be equipped with spring or electromagnetic operating mechanism, mechanical performance is reliable, frequent operation; No fire and explosion hazard; 

5.Built-in current transformer with accuracy up to 0.2 level can realize three-phase interactive protection;

6.The built-in condensation controller can keep the circuit breaker running reliably under certain temperature and humidity .

 

Main technical parameters

No

Item

Unit

Data

1

Rated voltage

KV

40.5

2

Rated insulation level

Power frequency withstand voltage

dry

95

wet

80

Lightning withstand voltage (peak)

185

3

Rated current

A

125016002000

4

Rated short circuit breaking current

KA

202531.5

5

Ra1ed operating sequence

 

0-0.3s-CO- l 80s-CO

6

Operations of breaking rated short circuit breaking current

Times

12

7

Rated short circuit making current (peak)

KA

506380

8

Rated peak withstand current

9

Rated short time withstand current

KA

202531.5

10

Rated breaking continuous current

S

4

11

Average opening speed

MS

1.5±0.2

12

Average closing speed

0.7±0.2

13

Asynchrony of three-phase closing, opening

S

≤2

14

Jumping time during contact closed

≤2

15

Closing time

≤150

16

Divide production and time

≤60

17

Mechanical life

Times

10000

18

Rated operating voltage and auxiliary circuit voltage

V

DC22011024

AC22011024

19

DC rt1is1anceof eacbphaserircui1doesn01indudemurnal inductor

≤100

20

total permissible abrasion 1hickness of moving and s1a1ic con1ac1s

mm

3

21

Weight

kg

800

 

Outline and mounting dimensions

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