What is the purpose of insulators in power transformation and distribution engineering?
Release Date:
2025-08-18
Insulators isolate live conductors from grounded parts through their high insulation performance, preventing current leakage. Under operating voltage, lightning overvoltage, or internal overvoltage, insulators must remain stable to avoid breakdown or surface flashover.
In substation engineering, insulators are mainly used for the following two aspects:
Electrical insulation
Insulators isolate live conductors from grounded parts through their high insulation performance to prevent current leakage. Under operating voltage, lightning overvoltage, or internal overvoltage, insulators must remain stable to avoid breakdown or surface flashover.
Mechanical support
Insulators support conductors and withstand external mechanical stresses such as wind load and ice load, ensuring stable operation of power equipment in complex environments.
Other functions
Prevent electromagnetic interference: avoid corona discharge interference with radio or television signal reception.
Optimize umbrella design: prevent water accumulation from forming conductive paths through round umbrella structures (such as alternating umbrella shapes), enhancing pollution flashover resistance.
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