GW9 Series Hookstick Disconnect Switch 630A Overload Function

Industrial High Voltage Electrical Isolator Of New GW9 Series Reset Automatically Safety Operated Hookstick Switches

Product Description:

High Voltage Electrical Isolator is a type of electrical switch used in power systems to isolate a circuit from the rest of the system for maintenance or safety purposes. The term "vertical" refers to the orientation of the isolator, which is mounted vertically on a support structure.

High Voltage Electrical Isolators are commonly used in high voltage transmission and distribution systems to isolate sections of the network for maintenance or repair work. They are designed to handle high voltages and currents and are often installed in outdoor locations.

High Voltage Electrical Isolators typically consist of a set of stationary and movable contacts that are separated by an air gap. When the isolator is in the closed position, the contacts are in contact with each other, allowing current to flow through the circuit. When the isolator 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 Electrical Isolators 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.

Feature:

1.High Voltage Rating: High voltage isolator switches are designed to withstand high levels of voltage, typically ranging from several thousand volts to several hundred thousand volts.

2.Robust Construction: High voltage isolator switches are typically made of materials that are highly resistant to electrical arcing, corrosion, and other forms of damage, such as porcelain or polymer.

3.Arc Chutes: Many high voltage isolator switches are designed with arc chutes, which help to dissipate the heat generated by electrical arcing and prevent damage to the switch.

4.Earth Switch: Some high voltage isolator switches are equipped with an earth switch, which provides an additional level of safety by grounding the isolated section of the circuit.

5.Interlocking Mechanism: To prevent accidental closure of the switch while maintenance work is being carried out, many high voltage isolator switches are equipped with an interlocking mechanism that prevents the switch from being closed until all safety procedures have been followed.

6. Visual Indicators: High voltage isolator switches may also include visual indicators, such as lights or flags, that provide a clear indication of whether the switch is in the open or closed position.

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.

Operation:

1.Visual indicators: High voltage disconnect switches may feature visual indicators, such as position indicators or status lights, to provide clear visibility of the switch's status (open or closed). These indicators help operators quickly identify the switch's position and avoid accidental contact with an energized circuit.
2.Interlocking mechanisms: Some high voltage disconnect switches are equipped with interlocking mechanisms that prevent the switch from being opened or closed under certain conditions. For example, a switch may have a mechanical or electrical interlock that requires the circuit to be de-energized before the switch can be operated, enhancing safety.
3.Remote operation: High voltage disconnect switches can be operated remotely using control systems or devices. Remote operation minimizes the need for personnel to be in close proximity to the switch, reducing the risk of electrical hazards and improving operational efficiency.
4.Environmental durability: High voltage disconnect switches are often designed to withstand harsh environmental conditions, such as extreme temperatures, humidity, and corrosive environments. They may feature robust enclosures, sealants, and coatings to ensure reliable operation and longevity in challenging environments.
5.Fault detection and indication: Advanced high voltage disconnect switches may incorporate fault detection and indication mechanisms. These systems can detect abnormal conditions in the circuit, such as overcurrent or short circuits, and provide visual or audible alarms to alert operators of potential issues, facilitating prompt action and minimizing damage.

Condition:

1.The maximum altitude for installation should not exceed 1000m.

2.The ambient air temperature should not exceed +40'C, and in general areas, it should not fall below -30'C. In Paramos areas, it should not fall below -40'C.

3.The wind pressure should not exceed 700Pa, corresponding to a wind speed of 34m/s.

4.The isolator should be able to withstand earthquakes of up to 8 degrees in intensity.

5.The isolator should be installed in a location where there is no frequent violent vibration.

6.For ordinary type isolators, they should be kept away from gas, smoke, chemical deposition, salt-spray fog, dust, and other explosive and corrosive materials that can seriously affect the isolator's insulation and conduction capability.

7.Pollution-proof type isolators are suitable for use in severely filthy conduction areas, but they should not be installed in areas with any explosive or fire-causing materials.

Technical Parameters: