Dry-type transformer blade-free cooling fan device and application method thereof

Abstract

The invention relates to a dry-type transformer blade-free cooling fan device and an application method thereof. The dry-type transformer blade-free cooling fan device comprises a dry-type transformer, a blade-free cooling fan, an insulated infrared temperature measurement sensor and a control module. The blade-free cooling fan is arranged near to the dry-type transformer, faces a winding of the dry-type transformer directly and is used for blowing air to cool the winding of the dry-type transformer. A temperature measurement probe of the insulated infrared temperature measurement sensor is arranged near to the winding of the dry-type transformer, faces the center of the winding of the dry-type transformer and is used for measuring the temperature of the winding of the dry-type transformer in a non-contact mode. The blade-free cooling fan is connected to the control model through a control cable. The insulated infrared temperature measurement sensor is connected to the control module through an infrared optical fiber sensing data line. The dry-type transformer blade-free cooling fan device and the application method thereof have the advantages that forced air-blowing cooling for the dry-type transformer is controlled automatically by the infrared non-contact temperature measurement, sensing and control technology, so that operational copper and iron losses of the dry-type transformer are reduced effectively, and overload and short-circuit resistance capacities of the device are improved effectively.

Description

technical field [0001] The invention relates to the field of dry-type transformer cooling fans, in particular to a dry-type transformer bladeless cooling fan device and a use method. Background technique [0002] During the operation of the dry-type transformer, due to the electromagnetic effect, its winding will generate a lot of heat, which needs to be cooled by the air flowing around it, otherwise it will cause a vicious accident of burning the dry-type transformer. Nowadays, the cooling methods of traditional dry-type transformers are divided into natural air cooling and forced air cooling. Natural air cooling has low cooling efficiency. To cool the windings of dry-type transformers, the traditional dry-type transformer cooling fan has many disadvantages: the exposed high-speed rotating blades are unsafe, high energy consumption, short service life, loud noise, easy to accumulate oil and dust, and difficult to maintain and clean, etc. Moreover, the traditional dry-type ...

AI Technical Summary

Problems solved by technology

Nowadays, the cooling methods of traditional dry-type transformers are divided into natural air cooling and forced air cooling. Natural air cooling has low cooling efficiency. To cool the windings of dry-type transformers, the traditional dry-type transformer cooling fan has many disadvantages: the exposed high-speed rotating blades are unsafe, high energy consumption, short service life, loud noise, easy to accumulate oil and dust, and difficult to maintain and clean, etc. Moreover, the winding temperature of traditional dry-type transformers does not use optical fiber infrared measurement sensing technology to automatically control the opening and stopping of the cooling fan, which is not intelligent.

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