Single Phase High Voltage Disconnector Switch 630A 12kV Porcelain Made Outdoor Disconnector Switch With Smart Operation

Single Phase High Voltage Disconnector Switch 630A 12kV Porcelain Made Outdoor Disconnector Switch With Smart Operation

Product Description:

High voltage disconnect switches are indeed used in high-voltage power transmission and distribution systems to disconnect circuits from their power sources for maintenance or repair purposes. They provide a means for isolating the circuit from the power supply, allowing workers to safely perform their tasks without the risk of electric shock.

The operation of a high voltage disconnect switches involves a rotating pole that controls the opening and closing of the switch's blade or contact. By rotating the pole, the blade can be engaged or disengaged, thereby connecting or disconnecting the circuit. This mechanism allows for a manual and visible indication of the switch's status.

To ensure operator safety, the pole of the disconnector switch is typically made of a non-conductive material, such as fiberglass or composite materials, which provides insulation against the high voltage present in the system. This insulation protects the operator from electric shock when operating the switch.

High voltage disconnect switches are available in various designs and sizes to accommodate different voltage and current ratings of the circuits they control. They are commonly mounted on poles or structures in outdoor settings, where they can be easily accessed and operated. In conjunction with other protective devices like circuit breakers and fuses, disconnector switches contribute to the overall safety and reliability of the electrical system by providing a means of isolation and protection.

Operation:

High voltage disconnect switches separates the conductive part from the base using an insulator to ensure a normal working insulation distance and fix the conductive part, insulator, and base as an integral switching device. When it is in the open position, there is a visible gap and a proper breaking insulation distance to withstand the normal working voltage. When it is in the closed position, it can reliably carry the normal working current and short-circuit fault current. Due to the presence of a dedicated arc extinguishing device, it can only be used for switching circuits with voltage but no load. The opening and closing operations are carried out by using an insulating hook to pull or push the round hole in the interlock, causing the dynamic interlock hook to disengage and engage with the static interlock hook.

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.Circuit isolation: High voltage electrical isolators are primarily used to isolate sections of a power system for maintenance or repair work. This allows workers to work safely on the isolated circuit without the risk of electrocution or other electrical hazards.

2.Safety: High voltage electrical isolators are also used as a safety device to protect workers and the public from electrical hazards. By isolating a circuit, High voltage electrical isolators prevent accidental contact with live parts of the system and reduce the risk of electrical accidents.

3.Fault protection: High voltage electrical isolators can also be used to protect the power system from faults, such as short circuits and overloads. By isolating a faulty section of the system, High voltage electrical isolators prevent the fault from spreading to other parts of the system and causing further damage.

4.Switching: High voltage electrical isolators can be used as a switching device to control the flow of power in a system. By opening or closing the isolator, the flow of power can be directed to different parts of the system as needed.

5.Testing: High voltage electrical isolators can also be used for testing purposes, such as to measure the voltage or current in a circuit, or to test the performance of other components in the system.

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: