Transformer internal fault monitoring system and control method thereof

Abstract

The invention discloses a transformer internal fault monitoring system and a control method thereof, which belong to the technical field of transformer internal fault monitoring equipment, have remote monitoring and management capability, and can perform remote monitoring and management on fault horizontal coordinate positions, fault types and fault severity in a transformer by using gas generated at a burnt-out part of a power transformation part in a transformer oil tank. Asealing box is arranged above thetransformer oil tank, the gas inlet end of a gas color observation mechanism is connected to an upper pipe opening of a first vertical pipe, a gas smell detection mechanism is arranged in the gas color observation mechanism, a gas volume detection mechanism is arranged in the gas color observation mechanism, the gas inlet end of a gas flammability detection mechanism is connected to a side wall exhaust hole of the first vertical pipe, and a bubble horizontal coordinate positioning detection mechanism is arranged in the transformer oil tank.

Description

technical field [0001] The invention relates to the technical field of transformer internal fault monitoring, in particular to a transformer internal fault monitoring system and a control method thereof. Background technique [0002] After the circuit in the transformer oil tank fails, the high-temperature arc generated by the short-circuit current will cause the transformer oil to decompose and generate gas, and will also cause the substation components at the arc to burn out or scorch to generate gas. In addition, the leakage of the transformer oil tank will also allow air to enter the transformer oil tank, and these gases will gather at the top of the transformer oil tank. If there is too much gas accumulated on the top of the transformer oil tank, it will inevitably occupy the space occupied by the transformer oil in the transformer, resulting in a decrease in the amount of transformer oil in the transformer oil tank. The reduction or deterioration of the transformer oi...

AI Technical Summary

Problems solved by technology

If there is too much gas accumulated on the top of the transformer oil tank, it will inevitably occupy the space occupied by the transformer oil in the transformer, resulting in a decrease in the amount of transformer oil in the transformer oil tank.

The reduction or deterioration of the transformer oil in the transformer oil tank will affect the cooling effect, insulation effect, arc suppression effect and liquid seal effect of the transformer oil on the transformer. not well protected, leading to transformer failure

[0003] At present, the approximate horizontal position of the burnt part of the substation components in the transformer oil tank cannot be determined in the remote monitoring of transformer faults; at present, only when the substation components are taken out of the oil tank for inspection at the scene can the power substation in the transformer tank be known. The approximate horizontal position of the burnt part of the component cannot be determined remotely in the transformer oil tank.

[0004] At present, for the gas generated due to faults in the transformer oil tank, it is generally used to directly discharge the gas in the transformer oil tank by setting an exhaust valve on the top of the transformer oil tank. Remote monitoring and management of internal faults

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