Ru-Lena Ind. (Holding) Co., Ltd.
Main products:fuse cut out parts,polymer arrester,arrestor disc,ACSR,galvanized steel cable
Products
Contact Us
  • Contact Person : Mr. Han Daniel
  • Company Name : Ru-Lena Ind. (Holding) Co., Ltd.
  • Tel : 86-0411-39852517
  • Fax : 86-0411-39852510
  • Address : Liaoning,Dalian,1302-1305 Tower B, The Manhattan Tower, No. 101 Youhao Road, Zhongshan Dist.
  • Country/Region : China
  • Zip : 116001

LW8-40.5 Series Outdoor High Voltage SF6 Circuit Breaker

LW8-40.5 Series Outdoor High Voltage SF6 Circuit Breaker
Product Detailed
designed for control and protection of the electric power distribution and transimission system with voltage up to 40.5kV

1.General Description

LW8-40.5 series outdoor high voltage SF6 circuit breaker is 3-phase DC 50 Hz outdoor high voltage equipment. Is designed for control and protection of the electric power distribution and transimission system with voltage up to 40.5kV. It could be also applied circuit breaker connection and switching operation of capacity bank.

2.Main Features

2.1 LW8-40.5 is outdoor tank structure,mechanism,simple structure, convenient debugging installation, maintenance cycle length.

2.2  Good breaking performance, arcing time short,break short current 40kA

capacity current 630A.

2.3 The high pollution levels,altitude ≤3000m

2.4 surface is deal with dacromet or hot-dip galvanizing,shell use Astainless steel materials, corrosion resistance capability.

2.5 Every phase with 4 CT, or outside CT,measure accuracy could reach 0.2s

2.6 Combined with the transition stent devices for the oil and other products to replace.

3.Main technical Data

No.

Name

Unit

Data

1

Rated voltage

kV

40.5

2

Rated insulation level

Lighting impulse voltage  (rms)

Power frequency withstand voltage   1min

kV

kV

185/215(break)

95/118(break)

3

Rated current

A

2000

4

Mechanicalendurance

Time

3000

5

SF6 gas rated pressure  (20 )

MPa

0.45

6

SF6 gas re-filled pressure  (20 )

MPa

0.42

7

SF6 gas lock-out pressure (20)

MPa

0.40

8

Rated short circuit breaking current

kA

31.5

9

Rated short circuit making current (rms)

kA

80

10

Rated short withstand current (thermal stability current)

kA

31.5(4s)

11

Rated withstand current (rms) (dynamic stability current )(rms)

kA

80

12

Rated out-phase breaking  current

kA

10

13

Close time (rated operation voltage )

ms

t≤100

14

Open time  (rated operation voltage)

ms

t≤65

15

Rated  operation sequence

 

o-0.3s-co -180s-co

16

Rated CO single capacity bank current

A

400

17

Annual leakage of gas

%

£1

18

SF6 moisture content20

ppm (v/v)

£150

LW8-40.5 Series Outdoor High Voltage SF6 Circuit Breaker



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