Humidity relay protector for transformer box

Abstract

The invention discloses a humidity relay protector for a power transformation box, and belongs to the technical field of power equipment. The humidity relay protector comprises a base plate, a main frame plate, an auxiliary frame plate, an armature plate rotatably mounted on the main frame plate, a controller, a humidity sensor, an electric driving assembly and a protection circuit assembly. The humidity sensor is electrically connected with the controller, the controller is electrically connected with the electric driving assembly, and the electric driving assembly is used for driving the armature plate to rotate; an insulating tube is fixed on the armature plate, and a movable terminal is fixed on the insulating tube; the protection circuit assembly comprises a working circuit, a warning circuit and a protection circuit; the working circuit comprises a working power supply, a power transformation box electric device and a working terminal which are sequentially connected through a wire, and the wire is connected between the working power supply and the mobile terminal; the warning circuit comprises a buzzer, a warning lamp and a warning terminal which are connected in sequence, and the buzzer is connected with the working power supply; the protection circuit includes a break terminal. The humidity relay protector has the effect of improving the safety of the power transformation box.

Description

technical field [0001] The present application relates to the technical field of electric equipment, and more specifically, relates to a humidity relay protector used in a transformer box. Background technique [0002] The relay is an electric control device, which is an electrical appliance that causes the controlled quantity to undergo a predetermined step change in the electrical output circuit when the change of the input quantity (excitation quantity) meets the specified requirements. It has the interactive relationship between the control system (also known as the input circuit) and the controlled system (also known as the output circuit), and is usually used in the automatic control circuit. It is actually a kind of control of large current operation with small current "automatic switch". Therefore, it plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit. [0003] The substation box is the box in the place where the voltag...

AI Technical Summary

Problems solved by technology

[0003] The substation box is the box in the place where the voltage and current of electric energy are transformed, concentrated and distributed in the power system. There are a variety of electrical devices used to transform the voltage and current in the substation box, and the substation box is used in actual use. The process will inevitably be set in a dark and humid working environment. If the humidity in the substation box is too high, the water vapor generated will easily cause short-circuit damage to the electrical components in the substation box and affect the safety of the substation box.

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