Home - Products Center - Isolating Switch - Outdoor Disconnector - GW4 12kV outdoor high voltage disconnector switch
Back
GW4 12kV
GW4 12kV

GW4 12kV outdoor high voltage disconnector switch

This series of outdoor high-voltage disconnector is a three-phase AC 50Hz outdoor high-voltage electrical equipment. It is suitable for power plants, substations and large industrial and mining enterprises in the three-phase AC 50Hz outdoor power system, for high-voltage lines to be replaced in the case of reactive power, as well as for the electrical isolation and distribution and closing circuits of high-voltage buss, circuit breakers and other electrical equipment to be overhauled and live high-voltage lines. It has the characteristics of safety and reliability, light operation and flexibility. The electrical and mechanical properties of the product meet the requirements of the national standard GB1985 "AC high-voltage isolation switch and grounding switch". It is widely used as the main switch in the substation of frame reactive power compensation device. The technical standards followed by this type of product are: GB1985-2014 GB_T11022-2011 "Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards" IEC129 AC Disconnectors and Grounding Switches

Feature
1

The disconnector is a single-pole double-column horizontal rotation structure, and the three-pole group can be used together, and it can also be used as a single pole. The single pole of the disconnector is composed of a chassis, a bearing seat, a porcelain bottle, a conductive main circuit, and a mechanical connecting rod. The three poles of the isolation switch are connected into groups with joints, linkage rods, pipe joints, pivot pins, steel pipes, and operating mechanisms.

2

A grounding switch can be installed at one or both ends of the chassis of the isolation switch. The grounding switch at both ends of the isolation switch is controlled by the operating mechanism interlocked, so that the isolation switch and the grounding switch can realize the anti-misoperation operation in the order of main division - ground closure - ground division - main closure.

3

Base frame: It is composed of hot-rolled channel steel, with bearing seats installed at both ends of the base frame, and two deep groove ball bearings are built in to ensure the flexible rotation of shaft assembly.

4

Pillar porcelain bottle: Stain-resistant porcelain bottle (pollution grade IV) is adopted, and each pole isolation switch is equipped with two pillar porcelain bottles erected and installed on the shaft assembly, and the upper end of the bottle is fixed with a conductive main circuit.

5

Conductive main circuit: It is composed of outlet terminals, soft connections, contact arms, contacts and contact finger assembly, and the conductive circuit has undergone special oxidation and anti-corrosion treatment, with excellent conductivity and high anti-corrosion level, and is suitable for various complex installation environments.

6

Mechanical connecting rod: The disconnector is operated by the operating mechanism through the operating shaft installed at the bottom of the bearing seat, which drives the strut insulator to rotate 90 degrees, and the linkage tie rod drives the three-pole linkage to realize the opening and closing of the disconnector switch. The grounding switch is driven by the operating shaft to drive the ground knife lever to drive the ground knife, and rotate up (or down) at a certain angle to complete the opening and closing.

7

Actuator: The actuator has manual type CS17-I/II/III (respectively equipped with non-grounding, single grounding, double grounding, with mechanical locking) and electric CJ6 series (can be flexibly matched to achieve single electric, electric + manual, electric + electric operation mode).

Parameter

Model

Rated voltage (kV)

Rated Current (A)

Thermal tax current (kA/4s)

Electrically Charged Sulphur (kA)

Power Frequency Withstand Voltage(KV/60s)

Withstand Voltage for Lightning Impulse (KV)

Interphase/Ground

fracture

Interphase/Ground

fracture

GW4

12

630

20

50

42

48

75

85

12

1250

31.5

80

12

1600

31.5

80

12

2000

40

100

Note: High-altitude areas are corrected according to the altitude coefficient
Install
GW4 12kV
Related Products
Service
WeChat

WeChat

WeChat

WeChat

Copyright © 2024 Chennuo Electric Powered by:ShanXian Sitexml

Home

Tel

Contact

Top