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GW5-126D outdoor AC high voltage isolation switch
Number of views:
1000

GW5-126D outdoor AC high voltage isolation switch

GW5 (GT10)-126D/1600-40 outdoor AC high-voltage isolation switch is a type of GW5-126 switch that Tianan aimed at other companies, which has defects such as large operating force, broken bevel gear teeth, severe corrosion of metal materials, and out of control of the opening position. Developed after major improvements, it is a mature product recommended by the company for high-voltage distribution networks.
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Number of views:
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Product serial number
A5
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GW5 (GT10)-126D/1600-40 outdoor AC high-voltage isolation switch is a type of GW5-126 switch that Tianan aimed at other companies, which has defects such as large operating force, broken bevel gear teeth, severe corrosion of metal materials, and out of control of the opening position. Developed after major improvements, it is a mature product recommended by the company for high-voltage distribution networks.
GW5 (GT10)-126D/1600-40 horizontal single-port outdoor AC high voltage isolating switch is suitable for power systems with AC frequency of 50Hz and rated voltage of 110kV. It is used for switching high-voltage lines under no-load conditions, and for electrically isolating electrical equipment such as high-voltage busbars, circuit breakers and other electrical equipment under maintenance from live high-voltage lines. It can also be used to switch small capacitive or inductive currents.

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  1. Adopt double-column horizontal rotary structure;

  2. Simple structure, beautiful appearance, flexible and diverse installation methods, convenient operation, maintenance and maintenance;

  3. The operating mechanism is simple, the operating force is small, and the switch can be self-locked and interlocked in place, which can prevent the isolation switch from malfunctioning due to external force;

  4. The main switch can be equipped with an electric operating mechanism;

  5. The current loop is entirely composed of silver-plated pure copper parts, and the surface is coated with a special lubricating protective agent (electronic oil), which greatly delays the oxidation time of the silver layer and ensures that the switch is always in a good conductive state during long-term outdoor operation;

  6. Good anti-corrosion performance: stainless steel, aluminum alloy, copper alloy and other materials are used, and various anti-corrosion measures such as dacromet, hot-dip galvanizing, nickel-phosphorus alloy composite plating, and spray painting are adopted;

  7. The isolating switch and the grounding switch realize the mechanical interlock between the two lock plates in the transmission box, which is safe and reliable.

Serial number

Name

Unit

Parameter

1

Rated voltage

kV

126

2

Rated current

A

630/1250/1600

3

Isolation switch and grounding switch rated peak withstand current

kA

80/100

4

Isolating switch and grounding switch 3s rated short-time withstand current

kA

31.5/40

5

Mechanical life of isolating switch and earthing switch

Times

2000 each

6

Isolating switch main loop resistance

μΩ

≤75

7

Rated 1min power frequency withstand voltage

Alternately, to the ground (dry/wet)

kV

230

Isolation fracture

kV

265

8

Rated lightning impulse withstand voltage

Alternately, on the ground

kV

550

Isolation fracture

kV

630

9

Terminals
Rated static tension

Longitudinal static tension FthA

N

750

Horizontal static tension FthB

N

250

10

Insulation distance of main blade

mm

≥1000

11

Center distance between phases

mm

≥2000

12

Insulation distance between phases

mm

≥1000

13

Clamping force of main blade moving contact

N

≥140±30

14

Closing synchronization error of main switch

mm

≤12

Ningbo Tianan (Group) Co., Ltd. was founded in 1969, covers an area of 1298 acres, more than 1800 employees. Is a focus on smart grid, "new infrastructure", "integrated smart energy" and other fields of power distribution switching equipment research and development, production, sales and service of the national key high-tech enterprises.

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