【Daily Topic】【Electrical Edition 20160818】
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Participation reward: 2 Wealth. Reward for correct answer: 9 Wealth. Question: What is the purpose of a high-voltage isolating switch? The main purposes of a high-voltage isolating switch are: 1) to isolate the power supply, thereby creating a clear separation point between the equipment under maintenance and the live parts ； 2) Work in conjunction with the switch to change the wiring method ； 3) Suitable for low-current circuits.
The main purposes are: 1) Isolating the power supply: Using an isolating switch to reliably separate the electrical equipment that needs maintenance from the live power grid, thereby creating a clear break between the equipment under maintenance and the power source, ensuring the safety of the maintenance work. 2) Switching operations: In circuits operating with two busbars, isolating switches are used to transfer power supply equipment or lines from one set of busbars to another. 3) Used to connect or disconnect lower load currents
1) Isolate the power supply: Use an isolating switch to reliably separate the electrical equipment that needs to be repaired from the live power grid, creating a clear break between the equipment in question and the power source, thereby ensuring the safety of the repair work. 2) Switching operations
During maintenance work in the event of a power outage, ensure that there is a clear break in the circuit to prevent dangerous situations that could arise from sudden power restoration
1) Isolate the power supply: Use an isolating switch to reliably separate the electrical equipment that needs to be repaired from the live power grid, creating a clear break between the equipment in question and the power source, thereby ensuring the safety of the repair work. 2) Switching operations
Purpose: 1) Isolate the power supply to provide a clear separation point between the equipment under maintenance and the live parts； 2) Work in conjunction with the switch to change the wiring method ； 3) Suitable for low-current circuits.
It is commonly used as the first circuit-breaking isolating switch to separate the power supply line from the users; the indoor type is often connected in series with high-voltage circuit breakers for use together, to ensure reliability during power outages. Furthermore, in high-voltage switchgear, isolating switches are commonly used as high-voltage control devices for voltage transformers, surge arresters, transformers used in power distribution, and metering cabinets.
1) Isolate the power supply: Use an isolating switch to reliably separate the electrical equipment that needs to be repaired from the live power grid, creating a clear break between the equipment in question and the power source, thereby ensuring the safety of the repair work. 2) Switching operations
1) Isolate the power supply: Use an isolating switch to reliably separate the electrical equipment that needs to be repaired from the live power grid, creating a clear break between the equipment in question and the power source, thereby ensuring the safety of the repair work. 2) Switching operations
1) Isolate the power supply: Use an isolating switch to reliably separate the electrical equipment that needs to be repaired from the live power grid, creating a clear break between the equipment in question and the power source, thereby ensuring the safety of the repair work. 2) Switching operations
1) Isolate the power supply: Use an isolating switch to reliably separate the electrical equipment that needs to be repaired from the live power grid, creating a clear break between the equipment in question and the power source, thereby ensuring the safety of the repair work. 2) Switching operations