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145kv 132kv Sf6 Circuit Breaker

Item:150kv 145kv 132kv Sf6 Circuit Breaker
①SF6 gas:good arc extinguishing performance
②Simple structure and compact size
③Good opening performance, balanced operation
④Sealed circuit breaker, small operation noise
⑤Low inspection and maintenance workload
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Product Introduction

150kv 145kv 132kv  Sf6 Circuit Breaker using the principle of self-energy arc extinguishing, the diameter and weight of the pressure cylinder are greatly reduced, and the operating work is reduced, making the use of a spring operating mechanism a reality. Each circuit breaker consists of three single-poles and three spring mechanisms mounted on three brackets, which can perform single-pole operation and three-pole electrical linkage. The spring operating mechanism is installed on the side of the bracket, and the electrical control system is placed in the mechanism box. The upper part of the single-pole circuit breaker body is a single-break arc extinguishing chamber, the middle is the pillar porcelain sleeve, and the lower part is used for sealing, opening springs and buffers.



Model Description

LW30-126

:Sulfur Hexafluoride Circuit Breaker

W:Outdoor

30 :Design Number

126:Rated voltage:110kV、126kV、132kV、145kV、150kV

:Rated current:3150A

:Rated short-circuit breaking current:31.5kA、40kA


Working Environment:


◆Installation method: side-mounted, middle-mounted

◆Ambient air temperature: upper limit +40C, lower limit -30C; ;

◆Altitude: ≤2000m (if the altitude needs to be increased, the rated insulation level should be increased accordingly);

◆Wind pressure: no more than 700Pa (equivalent to wind speed of 34m/s);

◆Amplitude: earthquake intensity 8 degrees;

◆Contamination level: Class I;

◆Maximum daily temperature difference: no more than 25C.



Main Technical Parameters


Serial number

Parameter

Unit

Value

LW30-126W/T3150-40

LW30-126W/T4000-40(H)

1

Applicable environment


Applicability in normal alpine regions

2

Rated voltage

kV

110/126/132/145

3

Rated frequency

Hz

50(60)

4

Rated current

A

3150

5

first opening coefficient


1.5

6

Rated short-circuit breaking current Ik

kA

40 /31.5

7

Rated short-circuit making current (peak value)

kA

100/ 80

8

Rated short-circuit withstand current

kA

40 /31.5

9

Rated peak withstand current

kA

100/ 80

10

Rated short circuit duration

S

4

11

Rated out-of-step breaking current

kA

10 /8

12

Near zone fault breaking current

kA

90% IK, 75% IK

13

Rated line charging switching current

A

31.5

14

Nominal Operation Sequence


0-0.3S-C0-180S-C0

15

Main circuit resistance

µΩ

≤65

16

Mechanical life

Second-rate

6000 or 10000

17

radio interference level

µV

≤500

18

Creepage distance

between fractures

mm

3906/3150

to the ground

kg

3906/3150



Structure and Mounting Dimensions

LW30-126.jpg




Product Real Shot

sf6 circuit breaker66kv sf6 circuit breaker


Certifications


ln order to ensure the stability and reliability of product quality, we adhere to the international quality standard system and implement strict inspectionand monitoring of products. Our high standards are due to the pursuit of brand perfection, and many of our certifications are not only glory, but alsothe driving force for ourprogress.


certifications


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