Maintenance-free efficient energy-saving dry-type electric furnace transformer

Abstract

The invention discloses a maintenance-free efficient energy-saving dry-type electric furnace transformer which comprises an upper base and a lower base, three power transformation cores are arranged between the upper base and the lower base, the three power transformation cores are sequentially arranged on the upper base, each power transformation core comprises a transformer iron core, a low-voltage coil and a high-voltage coil, and the transformer iron cores are installed between the upper base and the lower base. The low-voltage coils and the high-voltage coils sleeve the transformer iron cores, the low-voltage coils, the high-voltage coils and the transformer iron cores are coaxially arranged, the low-voltage coils are of external double-cake structures, the low-voltage coils are located on the outer sides of the high-voltage coils, the transformer iron cores are sleeved with insulating cylinders, the insulating cylinders are fixed between the upper base and the lower base, and the insulating cylinders are located between the low-voltage coils and the high-voltage coils. The head and tail wire outlet ends of each phase of low-voltage coil are connected with low-voltage head and tail outlet wires, and the head and tail wire outlet ends of each high-voltage coil are connected with high-voltage head and tail outlet wires. The transformer has the characteristic of low temperature rise, and people do not need to install a fan and a temperature control device when using the air conditioner, so that the transformer is really maintenance-free.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a maintenance-free, high-efficiency, energy-saving dry-type electric furnace transformer. Background technique [0002] As we all know, dry-type electric furnace transformers are mainly used to provide power for various electric furnaces. Industrial electric furnace transformers can be roughly divided into three categories: resistance furnace transformers, electric arc furnace transformers and induction furnace transformers. Most of the electric furnace transformers on the market are It is an oil-immersed and ordinary dry-type electric furnace transformer. These electric furnace transformers have the disadvantages of large no-load loss, large no-load current, large load loss and high operating noise during use, especially ordinary dry-type electric furnace transformers. Carry out regular maintenance, especially for overhauling the accessories such as fan and temperature cont...

AI Technical Summary

Problems solved by technology

[0002] As we all know, dry-type electric furnace transformers are mainly used to provide power for various electric furnaces. Industrial electric furnace transformers can be roughly divided into three categories: resistance furnace transformers, electric arc furnace transformers and induction furnace transformers. Most of the electric furnace transformers on the market are It is an oil-immersed and ordinary dry-type electric furnace transformer. These electric furnace transformers have the disadvantages of large no-load loss, large no-load current, large load loss and high operating noise during use, especially ordinary dry-type electric furnace transformers must be Carry out regular maintenance, especially for accessories such as dry-type electric furnace transformer fan and temperature control that must be configured

If these accessories fail, a trip signal will be output to the high-voltage circuit, forcing the dry-type electric furnace transformer to be powered off for maintenance, thereby greatly reducing the quality and safety of the user's power consumption

Images