• Product Details
  • Additional Information
  • Inquiry

Product Description

Outdoor post SF6 insulated load switch, is suitable for the rated voltage 12/24/38KV,rated current 630A、50/60Hz power grid open circuit、load current in closed Power system、overload current. This load switch can separate those broken distribution line automatically.

With the latest technology, it has the newest electronic controller.The switch can be used by manual operation, electric operation and operation from a long distance. Electronic controller is installed in a stainless steel cabinet which is suitable for using under all kinds of climatic conditions. In addition, there are some wired and wireless modem installed in the cabinet through which it can realize the remote monitoring and control. Simple installation on column is convenient, fast, and also can reduce the construction cost.

The standard conditions of use

Operating conditions for SF6 gas load switch to adapt to:

Ambient air temperature: upper limit +50 ° C, lower limit of -40 ℃.
Relative Humidity: 100%

Elevation does not exceed 1000m;2000m;3000m;5000m

The pressure does not exceed 700pa (equivalent to wind speed of 34m / s).
Earthquake intensity: 8 degrees.

Installation site: No fire, no explosion hazards, no chemical corrosion and recurrent severe vibration.

Pollution class: class III, class IV.

Features

SF6 gas is a kind of nontoxic, nonflammable and electrical insulating gas. It has the excellent characteristic of arc extinction.

Drive pipe with large diversity

In addition to the standard ceramic drive pipe, we can also provide a variety of solutions, including rubber insulators used in the epoxy resin filling equipment

Visible open / closed status

It is easy to see the main contact position indicator which is color-coded just standing on the ground (Green - off; red - closed). The indicator is directly connected with the main contacts of the drive shaft assembly to ensure accurate display of contact states.

Quick operation

operating mechanism with spring energy to ensure a quick closing and opening operation

Can realize remote control

It is equipped with electronic controller, fit for in situ operation as well as FTU interface console operation.

Rugged switch

The switch is made of proven durable, corrosion-resistant materials (special used in warships 304L stainless steel plate)which ensures that there is a very long service life (30 years), and can be implement a series of operations.It has the ideal characteristics as a column equipment.
Standard

Each switch before leaving the factory has been filled with SF6 gas, sealed, and test according to IEC60265-1 (1988), GB40.504-1990 standard.

No.

Name

Unit

Data

Product mode

SMT-12

SMT-24

SMT-40.5

1

Rated voltage

kV

12

24

40.5

6/10/11

15/17.5/20

33/36/38

2

Rated frequency

Hz

50/60

50/60

50/60

3

Rated insulation level(The filling SF6 gas 0.07Mpa

/ 20 ° C)

(Lightning impulse withstand voltage)

relatively

kV

75

125

185

Fracture

85

145

215

Power frequency withstand voltage

1min

relatively

kV

42

64

95

Fracture

50

79

110

4

Insulation level of zero gauge pressure.

 

Power frequency withstand voltage 1min

kV

30



RP-pressure 1min

30



The highest phase voltage 5min

9



5

Rated current

A

630(400)

630(400)

630(400)

6

Rated breaking load current (0.07Mpa / 20 ° C)

A

630(400)

630(400)

630(400)

7

breaking current under zero gauge pressure

A

630(400)

630(400)

630(400)

8

peak withstand current

kA

50

50

50

9

Rated short time making current

kA

50

50

50

11

rated short time withstand current

KA/s

20/4

20/4

20/4

12

rated cable charging breaking current

A

25

25

25

13

rated line charging breaking current

A

16

16

16

14

rated closed-loop breaking current

A

630(400)

630(400)

630(400)

15

exciting current

A

21

21

21

16

rated current breaking times

Times

≥400

≥400

≥400

17

rated working pressure

MPa

0.07

0.07

0.25

18

Per-phase main circuit resistance

μΩ

≤150

≤150

≤150

19

relative gas leakage rate

year

≤1%

≤1%

≤1%

20

SF6 gas moisture content

Factory transfer of value

ppm

≤150

≤150

≤150

Switch running value

ppm

≤300

≤300

≤300

21

operation of echanical stability

times

6000

6000

6000

22

rated operating voltage and auxiliary circuits rated voltage

V

DC 220/

110/48/24

DC 220/

110/48/24

DC 220/

110/48/24

AC 220/110

AC 220/110

AC 220/110

23

Weight

Type M

kg

115

125

135

Type A

135

145

155

24

institutions boxes and controller protection class

IP44  IP54

25

Type of Mounting

The lifting type (suspended)/block (horizontal)


    图片2

    图片4

    图片3


Related Products

Leave A Message

Copyright © 2021 By JGGY Electrical.com