Dual-protection dry-type iron core reactor

Abstract

The invention relates to a dual-protection dry-type iron core reactor which comprises iron yokes located at the upper end and the lower end, an iron core column arranged between the iron yokes, a coil heat protector and an iron core heat protector, the iron core column is sleeved with a framework, a coil is wound outside the framework, and the upper end and the lower end of the coil are each provided with a wiring terminal. The coil thermal protector and the iron core thermal protector are connected in series with one wiring terminal in the coil, the coil thermal protector is attached to the coil, and the iron core thermal protector is arranged on the iron yoke through a screw mechanism. The reactor has the advantages that the coil thermal protector and the iron core thermal protector are arranged, so that dual protection is achieved; the iron core thermal protector is arranged in the iron yoke, so that the temperature of the iron core can be accurately measured and controlled; the iron core thermal protector is installed by adopting a screw mechanism, the original structure of the reactor is slightly changed, and the cost of re-opening a mold is saved.

Description

Technical field [0001] The present invention relates to the field of power devices, and more particularly to a dual protected dry core reactor. Background technique [0002] In the core reactor, the heat generating member is divided into two parts of the core and the coil, typically by the thermal protection device induction coil operating temperature to achieve high temperature protection function; this manner is mainly for the prevention of product working abnormalities and overload protection, cannot be iron core Surveillance and effective protection of fever conditions. [0003] As will be applying as a utility model, a utility model, which is disclosed, is disclosed, and a tuning reactor comprising an upper iron yoke, a lower iron yoke, an iron core between the upper and lower iron yokes, and the iron core There is a skeleton, and the skeleton is wrapped around a coil, wherein the upper iron yoke is further provided with a terminal block, the terminal connection with a therm...

AI Technical Summary

Problems solved by technology

[0004] The present invention mainly solves the problem that the existing reactor is only equipped with thermal protection of the coil, and cannot monitor and effectively protect the heating state of the iron core. Dry-type iron core reactor with double protection for power-off protection when any temperature reaches the limit value

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