Transformer non-electric quantity protection instant monitoring system

Abstract

The invention discloses a transformer non-electric quantity protection instant monitoring system, which relates to the technical field of transformer sub-electric quantity protection, and comprises a non-electric quantity protection unit, a first control unit, a second control unit, a first monitoring unit, a second monitoring unit, a signal generation unit and a blocking unit, control of the transformer is determined through all triggering of the first control unit, the second control unit and the first monitoring unit, so that the situation of mistaken touch in a non-electric quantity protection device is avoided, and meanwhile, in order to avoid contingency of detected non-electric quantity signals, the non-electric quantity protection device is protected. The second monitoring unit is particularly arranged to further detect non-electric quantity factors in the transformer, and the authenticity of a non-electric quantity signal measured in advance is ensured, so that a fault signal sent by the transformer is accurately judged, and a corresponding blocking action is sent out in time. Therefore, the problem that a non-electric quantity protection device cannot accurately send out a fault signal and a corresponding blocking action aiming at the transformer due to the interference of external conditions is solved.

Description

technical field [0001] The invention belongs to the technical field of transformer power distribution protection, in particular to an instant monitoring system for transformer non-power protection. Background technique [0002] Non-electrical protection refers to a protection measure that reflects the fault action of the corresponding equipment through non-electrical quantities to issue an alarm signal or cut off the circuit action. The electrical quantity is judged by the non-electrical quantity such as temperature, pressure, speed or gas (oil speed). [0003] Non-electrical protection has now been widely used in the power industry. For example, for the protection of transformer equipment, non-electrical protection devices are usually set to protect the transformer. The most commonly used protection device on the transformer is the Buchholz relay. When a fault occurs inside the transformer, the oil and gas and oil flow respectively trigger the light gas action and the heav...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a real-time monitoring system for transformer non-electricity protection to solve the problem that the non-electricity protection device cannot accurately send fault signals and corresponding blocking actions for transformers due to interference from external conditions

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