Overload protection type distribution transformer

Abstract

The invention discloses an overload protection type distribution transformer, A circuit breaker matched with the low-voltage output parameters of the distribution transformer is connected in series between the low-voltage output of the transformer body and the low-voltage bushing, One end of the operating handle is connected with the closing mechanism of the circuit breaker through a connecting rod, and the other end extends into the heightened space of the upper part of the transformer tank as a hand-held operating part. The main body part of the circuit breaker is arranged in the oil tank ofthe distribution transformer. A circuit breaker protection device is arranged inside the transformer, and when the transformer overloads, the circuit breaker operates, thereby effectively avoiding the overload operation of the distribution transformer, protecting the distribution transformer from being burned, and realizing the self-protection of the distribution transformer.

Description

technical field [0001] The invention relates to a distribution transformer, in particular to an overload protection type distribution transformer. Background technique [0002] With the saturation of the domestic market and the shrinking demand, many domestic transformer manufacturers follow the national strategy and deploy overseas markets. Many companies choose countries with backward power construction as the core of international market development. However, in countries with backward power construction, there are often backward power facilities and overloaded power grids. Due to the overload operation of the transformer, it will accelerate the aging of the insulation test, reduce the service life of the transformer, or cause the transformer to burn out. After fulfilling the contract, many equipment supply companies face the risk of equipment burnout. After the equipment burns out, they need to return to the factory for repairs. They will have to pay high maintenance co...

AI Technical Summary

Problems solved by technology

However, in countries with backward power construction, there are often backward power facilities and overloaded power grids

Due to the overload operation of the transformer, it will accelerate the aging of the insulation test, reduce the service life of the transformer, or cause the transformer to burn out, etc.

After fulfilling the contract, many equipment supply companies face the risk of equipment burnout. After the equipment burns out, they need to return to the factory for repairs, and they have to pay high maintenance costs, which may lead to project losses.

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