High Voltage Isolation Switch

Let Sangao introduce it! Our high-quality High Voltage Isolation Switch is a switching device used to achieve safe isolation by cutting off the power supply to certain parts of the power grid, such as overhead lines, transformers, or busbars. Due to its isolation function, isolation switches are sometimes referred to as isolators. The main function of an isolation switch is to serve as a visual indicator for the disconnection or closure of electrical connections; This can allow grid operators to know whether the circuit/equipment is energized or de energized. It is very important for operators to confirm the live status of circuits/equipment so that they can safely conduct inspections, maintenance, and repairs, and avoid unnecessary risks.

Advantages:

1. Improve workplace safety by detecting potential hazards.

2. Provide reliable linear or rotational motion measurements.

3. Ensure optimal performance by measuring the speed of moving parts.

4. Real time and accurate detection of object position.

5. Provide unparalleled reliability and performance for various industries.

Widely used in various fields

The High Voltage Isolation Switch is widely used for measuring and controlling fluid parameters in heat exchange systems, such as engine cooling water systems, laser welding and high-frequency welding equipment cooling systems, gas heat exchange equipment, large power equipment cooling systems, heat pump heat exchangers, screw compressors, geothermal HVAC equipment, and medical equipment.

The application of isolating switches in providing safe working isolation in power systems can be traced back to the early 20th century. At that time, safety regulations required the relevant isolation switches to be disconnected to provide a "visible circuit breaker". The circuit breaker was subsequently closed to prevent unauthorized closing operations. In addition to safety electrical isolation, protective grounding is also mandatory; This requirement led to the development of grounding switches.

Substations use different types of air circuit breakers, including center circuit breaker, double circuit breaker, vertical circuit breaker, knee circuit breaker, and pantograph type. The type of isolation switch used depends on the layout, design, and space limitations of the substation.

Parts and Structure

All types of isolating switches contain the same basic components:

Current/live part - the part of an isolating switch that carries electrical loads.

Contact system - the point where an isolation switch connects or disconnects a circuit.

Supporting and rotating insulators - Insulators can reduce leakage/creepage currents and lower the likelihood of flashover.

Operating the driving device and connecting rod - used to drive (close/open) the isolation switch (usually using an electric motor).

Base - easy to install isolation switch.