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GW4-126D outdoor AC high voltage isolation switch
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GW4-126D outdoor AC high voltage isolation switch

GW4-126D double-post horizontal outdoor AC high-voltage isolating switch is suitable for power systems with AC frequency of 50Hz and rated voltage of 110kV, for high-voltage lines to be switched under no-load conditions, and for high-voltage busbars, circuit breakers and other electrical equipment under maintenance It is used for electrical isolation from live high-voltage lines to provide a visible insulation distance that meets the requirements for the equipment to be overhauled and maintenance personnel.
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Number of views:
1000
Product serial number
A4
Category：
High Voltage Eectrical
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1
Detail
Parameters
Features
Technical Parameter
Case

GW4-126D double-post horizontal outdoor AC high-voltage isolating switch is suitable for power systems with AC frequency of 50Hz and rated voltage of 110kV, for high-voltage lines to be switched under no-load conditions, and for high-voltage busbars, circuit breakers and other electrical equipment under maintenance It is used for electrical isolation from live high-voltage lines to provide a visible insulation distance that meets the requirements for the equipment to be overhauled and maintenance personnel.

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  1. Adopt double-column horizontal rotating structure;

  2. Simple structure, convenient debugging, beautiful appearance;

  3. The isolating switch can be used in a single pole, and can also form a three-pole linkage through the interphase connecting rod;

  4. There are two operation modes: electric and manual;

  5. With mechanical and electrical double interlock;

  6. The parts and components are mostly made of aluminum alloy, and adopt special anti-corrosion treatment, which has strong outdoor corrosion resistance;

  7. The conductive contact parts are treated with silver plating, and the silver-plated surface is dip coated with antioxidant to prevent the switch from being oxidized.

Serial number

Name

Unit

Parameter

1

Rated voltage

kV

126

2

Rated current

A

630/1250/1600/2000

3

Isolation switch and ground knife peak withstand current

kA

63/80/100

4

Isolation switch and ground knife 3s short-term withstand current

kA

25/31.5/40

5

Rated 1min power frequency withstand voltage

kV

230/265

6

Rated lightning impulse withstand voltage

kV

550/630

7

Opening and closing time

s

8±1

8

Control voltage

V

AC220

9

Center distance between phases

mm

≥2000

10

Insulation distance between phases

mm

≥1000

11

Break distance of isolating switch

mm

≥1050

12

Grounding switch break distance

mm

≥1000

13

Insulation distance of conductive part to ground

mm

≥910

14

Isolating switch three-phase opening and closing in different periods

mm

≤12

15

Earthing switch three-phase opening and closing in different periods

mm

≤15
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