Chengdu sells 35KV isolation switch power station models

Chengdu sells 35KV isolation switch power station modelsGW4-40.5/630Divided into four specifications based on current levels: 1250A, 2000A, 2500A, and 3150A;It is an outdoor high-voltage electrical equipment with an AC frequency of 50HZ. It is a series of products consisting of three voltage levels: 35KV, 63KV, and 110KV. It is used for switching high-voltage lines under no-load conditions, as well as for electrically isolating high-voltage busbars, circuit breakers, and other electrical equipment under maintenance from live high-voltage lines. It can also be used for switching small capacitive or inductive currents.
GW5-40.5 isolation switch has a simple structure, complete specifications and varieties, flexible and diverse installation methods, easy maintenance, wide applicability, and strong universality and series. When using a special installation form, it can make the wiring of the substation more flexible, reduce the footprint, and save metal frames. If a busbar is used, the wiring will be cleaner and clearer.
This series of outdoor isolating switches meets the relevant provisions of standards such as GB1985 "AC High Voltage Isolating Switches and Grounding Switches", IEC60129 "AC Isolating Switches and Grounding Switches", and GB/T11022 "Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards".

Product Features:

1. The conductive rod adopts a corner aluminum structure, which increases the conductive heat dissipation area and improves the conductivity reliability;
2. Adopting a new type of contact and external pressure contact finger structure, compared with the original structure, the surface area of the contact and contact fingers is larger, which has good heat dissipation ability, eliminates the influence of skin effect, and has good self-cleaning and wear resistance; The contact of this structure is inserted deeply into the contact finger, greatly improving the reliability of conductivity;
3. The silver plating process adopted greatly increases the adhesion of the coating, and at the same time, suitable contact pressure is used to reliably ensure that the silver plating layer does not fall off during long-term operation;
4. Fixed flexible connections are used between the terminal block and the terminal block for current flow; The upper and lower ends of the terminal block are insulated with shaft sleeves to ensure reliable current flow and flexible rotation. The wiring terminals and output columns adopt an integrated structure, which increases strength while reducing a possible hot spot;
5. The bearing seat adopts a fully sealed structure, with double upper and lower seals to prevent erosion of the rotating bearing by rainwater and sand. The bearing surface is filled with sufficient wide temperature lubricating grease with a working temperature range of 130 ℃ to -60 ℃, ensuring that lubrication failure does not occur in hot and cold regions;
6. The transmission shaft pin is made of stainless steel material, and the transmission link is made of hot-dip galvanized or stainless steel joint bearings, which have strong anti-corrosion ability, low rotational resistance, small fitting clearance, reliable transmission, and can effectively prevent the shaft from rusting and ensure flexible rotation;
7. The ground knife adopts a one-step action structure, and the grounding contact adopts a self operated structure, with a simple and beautiful structure, low operating force, and reliable action;
8. Steel components are treated with hot-dip galvanizing process; Silver or tin plating treatment on the surface of copper parts;
9. The vertical transmission rod connecting the main ground knife mechanism to the body adopts a connection method of clamp and hoop, which eliminates on-site welding and drilling, and is very convenient for users to install, debug, disassemble and maintain on site;

Chengdu sells 35KV isolation switch power station modelsGW4-40.5/630
1. Leakage ratio: Normal reaches 1.7CM/KV, anti fouling reaches 2.5CM/KV.
2. The conductive part has a small air distance to the ground:
35kV is 400mm, 60kV is 630mm, and 110kV is 1000mm.
3. Dynamic stable current: The main switch reaches 100A; the grounding switch reaches 47KA. Thermal stable current: The main switch reaches 31.5KA in 4 seconds, and the grounding switch reaches 20KA in 4 seconds.
4. Adding a transmission box makes the three pole assembly very convenient, and the opening and closing operations more flexible, lightweight, accurate, and reliable.
5. The newly designed CS17G combined manual mechanism has flexible installation, good rainproof performance, and is equipped with indicator lights and electromagnetic locks. 6. The mechanical lifespan can be continuously opened and closed up to 10000 times without adjustment.

Product Usage and Characteristics
The GW5 series isolation switch is used for switching 35KV high-voltage lines under no-load conditions, as well as for electrically isolating high-voltage busbars, circuit breakers, and other electrical equipment under maintenance from live high-voltage lines. When the main switch is in the normal opening position, it can provide a visible insulation distance that meets safety requirements and can also be used for opening and closing very small capacitive or inductive currents.
The GW5 series isolating switches are divided into the following types according to their structural characteristics and usage scenarios.
The GW5-40.5 outdoor isolation switch is a three-phase high-voltage electrical device composed of three independent single-phase isolation switches, and is also a basic unit derived from other special structures. It is referred to as a common isolation switch below.
The GW5-40.5w (Dw) outdoor high-voltage isolation switch is made by replacing the ordinary rod type post insulator with an anti fouling rod type post insulator on the basis of the ordinary (grounding) isolation switch. Suitable for polluted areas. Hereinafter referred to as anti fouling isolation switch.
The GW5-40.5 outdoor isolation switch is made by adding components such as opening springs and buffering devices to ordinary isolation switches. Usually used in conjunction with JW1 type grounding switches to replace circuit breakers on the high voltage side of terminal transformers. The following is referred to as a fast type isolation switch.
The GW5-40.5Z outdoor isolation switch is installed and arranged in different spatial directions on ordinary isolation switches. Usually used in conjunction with JW1 type grounding switches to replace circuit breakers on the high voltage side of transformers. The following is referred to as a fast type isolation switch. Special installation types can be divided into three installation methods: inverted, side mounted, side mounted, and inclined at 25 °. The rod type post insulator used on the inverted isolation barrier is a specially manufactured inverted umbrella type post insulator.
The Gw5 series outdoor isolation switch has a full range of specifications, multiple types, simple structure, easy installation and maintenance, wide applicability, and strong versatility. When using a special installation form, the wiring of the substation can be made more flexible, and the footprint can be greatly reduced, saving metal frames. If a hard busbar is used, the wiring is cleaner and clearer.