Hollow post insulator can be divided into small bushing insulator used on electrical equipment and other distribution systems, big Hollow post insulator used in substations and stations and transformers.

Hollow post insulator can be divided into
◆ Upside down transformer bushing
◆ Capacity voltage transformer bushing
◆ SF6 transformer bushing
◆ Electrostatic precipitator bushing
◆ Oil immersed voltage transformer bushing
◆ Current transformer bushing
◆ Circuit breaker post bushing
◆ Outdoor cable end bushing
◆ SF6 current transformer bushing

Wall bushing insulator is popular insulator used on the distribution systems, which is used with electrical apparatus and insulates the conductors from it.

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