Micro water detection device in transformer oil and transformer equipped with the detection device

Abstract

The invention provides a detection device of micro water in transformer oil and a transformer provided with the same; the detection device of the micro water in the transformer oil includes a micro water sensor, a data processing unit for receiving a detection signal outputted by the micro water sensor, and a detection head fixedly mounted on the transformer; the detection head is provided with a sensor mounting rod for passing through an internal channel of a detection sampling valve pre-arranged on the transformer and then extending to a transformer circulating oil way for an insulating oil to flow; the micro water sensor is arranged on a rod section, extending to the circulating oil way, of the sensor mounting rod. The micro water sensor directly extends to the circulating oil way on the transformer, the insulating oil in the circulating oil way is directly detected real-timely online through the micro water sensor, an oil pump is not required to be alone arranged for pumping the insulating oil to simulate the insulating oil in the circulating oil way of the transformer, and in the premise of ensuring measurement accuracy, the cost of the whole detection device is effectively reduced.

Description

technical field [0001] The invention relates to a detection device for minute water in transformer oil and a transformer equipped with the detection device. Background technique [0002] Long-term studies have shown that the operational reliability of large-scale power transformers depends largely on their insulation status, so maintaining the normal insulation level of power transformers is critical to the safe operation of transformers. Transformer oil is an important insulating medium inside the power transformer. It mainly plays the role of insulation, cooling and arc suppression in the power transformer. The quality of the oil directly affects the electrical performance and operating life of the transformer. Moisture is an important factor affecting the tanδ value of the dielectric loss of transformer oil; the combination of moisture and organic acids in the oil will become one of the main reasons for the deterioration of the electrical properties of the oil; moisture w...

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Problems solved by technology

[0006] The invention provides a micro-water detection device in transformer oil to solve the technical problem in the prior art that an oil pump needs to be configured to pump insulating oil to simulate the flow of insulating oil in the transformer circulating oil circuit, resulting in high cost of the detection device; at the same time, the present invention The invention also provides a transformer equipped with the above detection device

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