What should be noted during the welding of leads for transformers with a voltage of 60kV and above?

When welding leads for transformers with a voltage of 60kV and above, the following precautions should be taken: Before welding the leads, it is essential to wrap the base of the leads to be welded with wet asbestos rope and cover the winding with tarpaulin. The welding flux should be prepared as needed, but the usage time should not exceed 8 hours. After welding, it is necessary to remove welding flux, oxide residue, insulation scorching, and any burrs. The welding area should be covered with shielding material to prevent local discharge.

If the leads are bare copper bars, a layer of insulating varnish should be applied to their surface to prevent the accelerated aging of transformer oil. In addition, leads can also be connected using crimping or mechanical methods.

LuShan, est. 1975, is a Chinese professional manufacturer specializing in power transformers and reactors for 49 years. Leading products are single-phase transformer, three-phase transformers, DC inductors, AC reactors, filtering reactor, expoxy resin high-voltage transformer and intermediate, high-frequency products. Our transformers and reactors are widely used in 10 application areas: rapid transit, construction machinery, renewable energy, intelligent manufacturing, medical equipment, coal mine explosion prevention , excitation system, vacuum sintering, central air conditioning.

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