Product details

Overview

The GT-12 series solid insulated ring switch is a fully insulated, fully sealed, and maintenance free solid insulated vacuum switchgear. The high-voltage live parts are made of epoxy resin material with excellent insulation performance, which is cast and molded. The vacuum arc extinguishing chamber, main electrical circuit, insulation support, etc. are organically combined into a whole, and the functional units are connected through fully insulated solid busbar. Therefore, the entire switchgear is not affected by the external environment, ensuring the reliability of equipment operation and the safety of operators.

This faulty network cabinet has the characteristics of simple structure, flexible operation, reliable interlocking, and easy installation. It is suitable for 50Hz, 12 kV power systems and widely used in industrial and civil cable ring networks and distribution network terminal projects. It is used for receiving and distributing electrical energy, especially for urban residential areas, small substations, switch stations, cable branch boxes, box type substations, industrial and mining enterprises, shopping malls, airports, subways, wind power generation, hospitals, sports stadiums, railways, tunnels and other places.

Due to its advantages of full insulation, full sealing, and full shielding, this product is particularly suitable for use in harsh environments such as high altitude, high temperature, humid heat, severe cold, and severe pollution.

Product Categories

According to the type of switch, it is divided into load switch with grounding assembly (referred to as C module), load switch without grounding assembly (referred to as CB module), circuit breaker with grounding assembly (referred to as V module), circuit breaker without grounding assembly (referred to as VB module), circuit breaker interconnection switch (referred to as VZ module), load switch+fuse combination switch assembly (referred to as F module), and isolation switch assembly (referred to as G module).

Normal use condition

◊Environmental temperature: -45 ℃ to+45 ℃

◊ Humidity: Average relative humidity, daily average<95%, monthly average over 90%

◊ Altitude: ≤ 4000 meters

◊ Seismic resistance: 8 degrees

◊ Protection level: IP67 for live body sealing, IP67 for fuse barrel, IP3X for switchgear enclosure

Compliant with Standards

◊Q/GDW 730-2012 "Technical Conditions for 12kV Solid Insulation Damaged Network Cabinet"

◊GB 3804 3.6kV-40kV AC High Voltage Load Switches

◊GB 4208 "IP Code for Degrees of Protection Provided by Enclosures"

◊GB/T 15166.2 High voltage AC fuses Part 2: Current limiting fuses

◊GB/T 11022 Common Technical Conditions for High Voltage Switchgear and Control Equipment Standards

◊GB1984 "AC High Voltage Circuit Breakers"

◊GB1958 "AC High Voltage Isolation Switches and Grounding Switches"

◊ GB 16926 High voltage AC load switch fuse combination electrical apparatus

◊GB/T7354 "Partial Discharge Measurement"

◊GB3906 "3.6-40.5kV AC Metal Enclosed Switchgear and Control Equipment"

Features

1、 Environmental Protection

The materials used in product manufacturing are all non-toxic and harmless substances, and no toxic substances are emitted during use. The materials can be recycled and reused after their life cycle, which determines the environmental friendliness of their use.

Fully insulated, fully sealed, and fully shielded epoxy resin switch housing and fuse housing (epoxy resin has excellent electrical, mechanical, and thermal properties and has been used in electrical equipment for a long time, achieving good performance). The switch housing and fuse housing are formed using epoxy resin APG technology. Insulated casing is a key component of solid insulated switches, serving as both an insulating and load-bearing component. Require to meet technical requirements such as heat resistance, weather resistance, crack resistance, high mechanical strength, and good insulation strength simultaneously.

2、 Wide applicability

The switch cylinder and isolation switch operating mechanism box adopt a dynamic and static sealing structure to form a sealed cavity, filled with zero gauge pressure dry nitrogen gas, without using SF6 gas, isolated from the external environment, ensuring the full working condition of the switch cabinet.

3、 Easy installation and transportation

Single cabinet structure, unified design for the entire series of products, providing users with multiple cabinet types that meet their needs, and with consistent geometric dimensions. We use universal insulated busbars and cable plugs produced by cable accessory manufacturers. The switchgear can be combined on-site and expanded freely, avoiding the inconvenience of transportation and installation caused by multiple combinations. If requested by the user, a combination cabinet can also be provided.

4、 Maintenance free

Solid insulated indoor AC high voltage vacuum switchgear is in a fully sealed state except for the operating mechanism, which can avoid cleaning and maintenance, reducing the cost of operation and maintenance.

5、 Security

Due to the use of shielding measures on touchable parts, the occurrence of personal electric shock accidents has been eliminated and the safety of use has been improved. A complete interlocking system with clear and visible three-phase isolation fractures avoids the occurrence of misoperation accidents. The application of SF6 gas has been cancelled, avoiding explosion accidents caused by insufficient gas pressure leading to a decrease in insulation performance and arc extinguishing ability of SF6 ring main units. Strengthen the inter phase isolation structure to prevent the expansion or triggering of explosion accidents due to inter phase or multi circuit short circuits. Adopting a vacuum arc extinguishing chamber with explosion-proof performance, the switch sleeve provides further protection for the switch. The auxiliary grounding switch of the load switch fuse combination device is sealed in the fuse body with a vacuum switch tube.

6、 Ease of operation

The isolation switch and grounding switch only have one operating handle, so there is no need to identify or worry about errors. When the circuit breaker is running, the operating handle of the isolation switch and grounding switch cannot be operated, and the operating procedure is clear at a glance. Anyone with a little knowledge of electricians can operate it, and there is no need to undergo complex technical training. This makes the operation exceptionally simple, leading to errors in social distancing.

7、 Intelligentization

The switchgear is equipped with intelligent interfaces and sensor installation positions, which can meet the requirements of the smart grid after configuring intelligent equipment.

8、 Diverse operating mechanisms

The switch can be equipped with two operating mechanisms: spring and permanent magnet, making it convenient for users to choose.