Enclosed Type

The installation of transformer accessories

by：Transon 2020-10-29

A dry type transformer components shall be installed according to the product manual position and secondary instrument in facilitating guardrail online observation transformer. Transformer voltage switching device contact and coil of wire crimping correctly, solid and reliable, and its good contact surface contact closely. Voltage switch, turn the contact position is correct, and consistent with the specified location. Transformer primary and secondary lead connection, should not be directly under stress of transformer bushing. Transformer neutral line in a neutral place them together with protective earthing line, and should be equipped, neutral appropriate USES insulated wires, protect the earth should adopt the double color of yellow and green insulated wires. Transformer neutral point grounding loop, near the transformer, should make a detachable connection point. （ 5) Debugging transformer should be tested for handover: measuring the dc resistance of coil, together with the casing, check all the tap transformer ratio, punctuation of three-phase transformer connection groups, the insulation resistance of the measuring coil with casing coil with do ac withstand voltage test together. Test standards should comply with the relevant standards and technical documents of the relevant provisions of the manufacturers products. This article reprinted from laser cutting machine

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