Air Break Switches

Product Details:

An 11 kV GO (gang operated) DO (drop-out) switch, also known as a gang-operated dropout fuse switch, is a type of switching device used in medium-voltage electrical distribution systems. Here's an overview of its features and functionality:

1. Voltage Rating: The switch is specifically designed to operate at a voltage of 11 kilovolts (11 kV), which is typical for medium-voltage distribution systems.

2. Functionality: The GO DO switch combines the functionalities of a gang-operated switch and a dropout fuse. It serves as a means of both disconnecting a portion of the electrical network for maintenance purposes and providing overcurrent protection.

3. Gang-Operated Design: The gang-operated feature allows for manual operation of the switch by multiple operators using a common operating mechanism. This ensures that the switch can be safely operated even if one operator is unavailable.

4. Dropout Fuse Function: The dropout fuse integrated into the switch provides overcurrent protection for the electrical circuit. In the event of a fault or overload, the fuse operates to interrupt the flow of current, thereby protecting the downstream equipment and preventing damage to the electrical system.

5. Construction: The GO DO switch is typically constructed with robust materials such as galvanized steel or aluminum to withstand the mechanical stresses and environmental conditions encountered in outdoor installations. The switch and fuse components are designed to provide reliable operation and long-term durability.

6. Mounting: The switch is mounted on utility poles or other support structures using appropriate mounting hardware. It is installed in series with the electrical circuit, typically on the line side of transformers or other distribution equipment.

7. Operation: The switch can be operated manually using a mechanical operating handle or lever. When operated, it opens or closes the electrical circuit, allowing for isolation or restoration of power as needed for maintenance or fault clearance.

8. Safety Features: The switch is equipped with safety features such as interlocking mechanisms to prevent accidental operation and ensure proper sequence of operations. Additionally, appropriate warning labels and signage are often provided to alert personnel to the presence of high voltage and potential hazards.

Product Details:

Product Details:

11kV air break switch with polymer components is a type of switchgear used in medium-voltage electrical distribution systems. Here's a breakdown of its features and functionality:

1. Voltage Rating: The switch is designed to operate at 11,000 volts (11 kV), which is typical for medium-voltage distribution systems.

2. Air Break Switch: The switch employs the use of air as the arc quenching medium. When the switch is opened, an arc is formed between the contacts due to the interruption of the electrical current flow. The design of the switch ensures that the arc is quickly extinguished by the surrounding air, thus preventing damage to the contacts and ensuring safe operation.

3. Polymer Components: Polymer materials, such as fiberglass-reinforced epoxy resin, are used in various components of the switch, including the insulators, housing, and other structural elements. Polymer materials offer several advantages over traditional materials like porcelain or metal, including lighter weight, better resistance to environmental factors such as moisture and pollution, and enhanced durability.

4. Compact Design: The use of polymer components allows for a more compact and lightweight design compared to traditional switchgear with porcelain insulators. This makes installation and maintenance easier and more cost-effective, especially in space-constrained environments.

5. Weatherproof and Corrosion Resistance: Polymer materials provide excellent resistance to weather conditions, UV radiation, and chemical corrosion, ensuring long-term reliability and performance even in harsh outdoor environments.

6. Manual or Motorized Operation: Depending on the design, the air break switch can be operated manually using a lever or handle, or it can be motorized for remote operation from a control room.

7. Fault Isolation: The switch is primarily used for isolating sections of the distribution network for maintenance or repair purposes. It allows for the safe disconnection of electrical circuits without interrupting power supply to other parts of the network.

8. Safety Features: Polymer insulators offer enhanced safety features such as high insulation resistance and reduced risk of electrical flashover, enhancing the overall safety of the switchgear.

Product Details:

A 33 kV AB switch, also known as an air break switch or disconnect switch, is a fundamental component in electrical power systems designed to control and isolate sections of the grid operating at 33,000 volts (33 kV). Here's an overview of its key features and functions:

1. Voltage Rating: The AB switch is specifically designed to handle high voltage levels, typically 33 kV, making it suitable for medium-voltage power distribution systems.

2. Isolation: Its primary function is to isolate sections of the power grid for maintenance, repair, or in the event of a fault. By opening or closing the switch, operators can control the flow of electricity through the grid.

3. Manual Operation: AB switches are usually operated manually, either by using a lever or a rotating mechanism. This manual operation allows for local control of the switch.

4. Load Switching: In addition to isolation, AB switches may also be capable of load switching. They can transfer electrical load from one feeder to another without interrupting the power supply to the connected loads.

5. Interrupting Capacity: AB switches are designed to safely interrupt the flow of current. They must be capable of handling the potentially high fault currents that occur during short circuits or other system disturbances.

6. Insulation and Enclosure: Like other switchgear components, AB switches are housed within insulated enclosures designed to withstand environmental conditions such as moisture, dust, and temperature variations.

7. Interlocking Mechanisms: Interlocks may be incorporated into AB switches to prevent unsafe operations, such as attempting to open the switch under load conditions.

8. Visual Indicators: Many AB switches have visual indicators to show the status of the switch, such as whether it is open or closed, providing a quick reference for operators.

9. Remote Control: Some advanced AB switches may include options for remote control, allowing operators to operate the switch from a distance for added convenience and safety.