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  • Aging of composite insulators

    Aging of composite insulators

    4 composite insulator aging expression 4.1 Macro appearance   1).shed skirt color change After aging, the color of the insulator changes, the gray-black insulator shed is white, and the red insulator shed is lighter (it can be said to be whitish). 2).shed skirt cracking, chalking There is...
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  • What do you know about lightning arresters?

    What do you know about lightning arresters?

    Definition: The device which is used for the protection of the equipment at the substations against travelling waves, such type of device is called lightning arrester or surge diverter. In other words, lightning arrester diverts the abnormals high voltage to the ground without affecting the conti...
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  • what’s the operation of fuse cutout?

    what’s the operation of fuse cutout?

    1. When the fuse fuses, the fuse bracket drops, providing positive fault isolation, and clearly indicating that the circuit breaker is in operation. 2. Installation and removal of the fuse carrier is achieved by the positive engagement of the unit onto a pick up tongue positioned at the hinge end...
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