630A High Voltage Air Break Disconnect Switch Vertical Single Phased

630A High Voltage Disconnect Switch GW9 Series Industrial Single Phased Vertical Break Switch With Easy Installation

Product Description:

High voltage disconnect switch is a type of electrical switch used in high voltage power systems to isolate sections of the network for maintenance or safety purposes. The switch is typically mounted on a pole or other support structure and is used to disconnect an overhead power line from the rest of the system.

High voltage disconnect switches are designed to handle high voltages and currents and are often installed in outdoor locations. They consist of a set of stationary and movable contacts that are separated by an air gap. When the switch is in the closed position, the contacts are in contact with each other, allowing current to flow through the circuit. When the switch is opened, the contacts are separated, interrupting the flow of current through the circuit and isolating it from the rest of the system.

High voltage disconnect switches are an important component of power system safety and reliability and are designed to operate in a variety of environmental conditions. They are often subject to rigorous testing and certification requirements to ensure that they meet industry standards for performance and safety.

High voltage disconnect switches are commonly used in high voltage transmission and distribution systems to isolate sections of the network for maintenance or repair work. They are also used as a safety device to protect workers from electrical hazards, such as accidental contact with live parts of the system.

Operation:

1 Preparation: Before operating the switch, the circuit should be de-energized and properly grounded to prevent any electrical hazards. The switch should be inspected for any signs of damage or wear and tear.
2 Closing the switch: To close the switch, the operator manually or remotely moves the switch handle or control lever to the closed position. This connects the circuit to the power source, allowing current to flow through the circuit.
3 Opening the switch: To open the switch, the operator manually or remotely moves the switch handle or control lever to the open position. This disconnects the circuit from the power source, interrupting the flow of current.
4 Arc management: When the switch is opened, an electrical arc may occur between the contacts, which can be dangerous and cause damage to the switch. To manage the arc, the switch may be equipped with devices such as arc chutes or blowout coils.
5 Safety: Operators of high voltage disconnect switches must follow proper safety procedures to prevent electrical hazards. This may include wearing personal protective equipment, working in teams, and following lockout/tagout procedures.

Safety Tips:

1.Always wear appropriate personal protective equipment (PPE) such as gloves, safety glasses, and flame-resistant clothing.

Before working on the switch, ensure that the power supply is turned off, and the switch is properly grounded.

2.Follow the manufacturer's instructions for operating the switch, and do not attempt to bypass safety features or use the switch for purposes other than its intended use.

3.When working on the switch, use insulated tools and equipment to prevent electric shock.

4.Avoid touching any conductive parts of the switch and keep a safe distance from the switch when it is in operation.

5.Never attempt to repair or modify the switch yourself unless you are a qualified and trained professional.

6.Keep the area around the switch clean and free of debris that may interfere with its operation.

7.Regularly inspect the switch for signs of wear or damage, and replace any damaged or worn parts as soon as possible.

8.Only authorized personnel should be allowed to operate or perform maintenance on the switch.

9.In case of an emergency, follow established emergency procedures and shut off power to the switch immediately.

Application:

1.Maintenance and Repair: The disconnector switch is used to isolate a section of the power line for maintenance or repair purposes. This allows maintenance personnel to work safely without risking electrocution.

2.Load Shedding: In the event of a power overload, the disconnector switch can be used to shed the load and prevent damage to the power line or equipment.

3.Fault Isolation: The disconnector switch can be used to isolate a section of the power line in the event of a fault, such as a short circuit or ground fault. This prevents the fault from spreading to other parts of the network and causing further damage.

4.Switching Operations: The disconnector switch is used for switching operations, such as connecting or disconnecting power sources or rerouting power to different parts of the network.

5.Protection: The disconnector switch is often used in conjunction with other protective devices, such as circuit breakers and fuses, to protect the power line and equipment from damage.

6.Renewable Energy: With the increasing use of renewable energy sources, such as wind and solar, disconnector switches are used to connect and disconnect these sources from the power grid.

Structure:

This product is composed of base (plate), post insulator, conductive part and interlock device. One end of the knife is installed on the dynamic contact knife head through bolts, and the other end of the knife is separately connected with the static contact head, and each side is maintained in a good contact state by the pressure of the compression spring. Each knife is slot-shaped type, which not only increases the heat dissipation surface of the knife, but also conducive to reducing the temperature rise, and improve the mechanical strength of the knife, making the dynamic thermal stability against short circuit. The interlocking parts installed at the non-rotating end of the contact knife and the static locking hook on the static contact constitute the opening locking device, which is self-locking when the brake is closed, so that the brake knife will not fall off by itself due to its own weight or the action of electric power, resulting in the opening of the brake without cause.

Technical Parameters: