Technical data of 132kv sf6 circuit breaker

- Jul 04, 2019-

Technical data of LW36 type 126kv 132kv SF6 circuit breaker

1. main technical parameters of circuit breaker are shown in table 1

No.

items

unit

technical parameters

1

Rated voltage

KV

126

2

Rated frequency

Hz

50

3

Rated   current

A

1600-3150

4

 temperature

-55 --   +55

5

SF6 safety pressure

MPa

0.4

4

Rated short circuit breaking current

Short circuit current

KA

40

Dc   component

-

40%

5

Rated short circuit duration

S

4

6

Rated short time withstand current

KA

40

7

Rated   short-circuit closing current (peak)

KA

100

8

peak withstand current

100

9

Rated   1min power frequency withstand voltage

 (valid   value)

phase to earth

KA

230

Between the fracture

265

10

Rated   lightning shock withstand voltage

(peak value)

Opposite, 

550

Between the fracture

630

11

5min zero gauge pressure withstand (effective value)

Interfacial,   opposite

95

12

Rated   out-of-step breaking current

KA

Ie×25%

13

Near   zone fault breaking current

Ie×90%,Ie×75%

14

Rated   line charging breaking current

A

50

15

Rated  operation sequence

-

0-0.3s-C0-180s-C0

16

Opening   pole coefficient

-

1.5

17

Closing   time

Ms

≤145

18

Opening   time

≤60

19

Breaking   time

≤60

20

Points   in time

60

21

opening-   simultaneity

4

22

closing-simultaneity

5

23

Rated SF6 gas pressure (20)

MPa

0.6

24

SF6 gas

-

≤0.5%

25

Gas   moisture content

Ppm(v/v)

≤150

26

Radio   interference level

μv

≤2500

27

Mechanical   endurance

time

6000

28

Quality   of each circuit breaker

kg

1400

29

Each unit is filled with SF6 gas mass

6

30

Main   circuit resistance per pole

μΩ

70

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