High-voltage transformer with epoxy shielding barrel and manufacturing method thereof

Abstract

The invention relates to a high-voltage transformer with an epoxy shielding barrel and a manufacturing method thereof. The high-voltage transformer comprises a primary winding, a secondary winding and an iron core, and is characterized in that: the epoxy barrel is sleeved on the outer side of the primary winding; and semiconductor paint is uniformly coated on the inner and outer surfaces of the epoxy barrel, so that the formation of the epoxy shielding barrel of the primary winding is facilitated. The epoxy shielding barrel of the high-voltage transformer is low in cost, the epoxy shielding barrel and the semiconductor paint are convenient to store, can be purchased on a small batch on the market and can be manufactured for constant use at any time, and the processing cost and production efficiency of the transformer are controlled; and meanwhile, electric field distribution can be optimized effectively, the distance between primary and secondary windings is ensured without causing puncture, the service life of an insulating material is prolonged remarkably, and running of equipment is safer and more reliable.

Description

technical field [0001] The invention relates to a high-voltage transformer, in particular to a high-voltage transformer with an epoxy shielding cylinder and a manufacturing method thereof. Background technique [0002] At present, most JDZ9-35 indoor voltage transformers adopt cast single-stage structure, that is, the primary winding and secondary winding are wound on the same core column. One of the key problems in transformer insulation design is the optimization of the field strength inside the transformer. Due to the complex internal structure and small size of the voltage transformer, there are many stray capacitances and some air bubbles left in the production process. In order to make the internal field strength as possible Low, the ideal is to balance the electric field, so the inside of the transformer needs to be optimized to an approximate balanced electric field whether it is primary to ground or primary to secondary. In order to achieve this function, the inside...

AI Technical Summary

Problems solved by technology

However, there are relatively few manufacturers of this semiconductor tube in the market now, and a large amount of purchase is required when ordering, but the application of transformers is relatively small, relatively occupying a large amount of inventory, and this product cannot be stored for a long time, and the unit price is relatively expensive. Transformers are expensive to produce

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