A constant temperature device for a current collection element used in a transformer DC isolation device

Abstract

The invention discloses a constant temperature device of a current collection element for a transformer blocking device, and belongs to the field of current collection elements. The device comprises atransformer box body, and the interior of the transformer box body is provided with a plurality of current collection elements, wherein the current collection elements comprise current transformers.The device can achieve a purpose that a cold air annular pipe at the position of the infrared temperature measurement inductor with the high measured temperature sprays cold air for cooling when a plurality of infrared temperature measurement inductors detect that the temperature gradient is bigger, and a cold air annular pipe at the position of the infrared temperature measurement inductor with the low measured temperature sprays hot air for heating, thereby effectively reducing the temperature gradient of a current transformer, and effectively avoiding the cracks. The device can effectivelyreduce the environment humidity while conveying hot air and cold air through a dehumidification cold air inlet pipe and a dehumidification hot air inlet pipe, and prevents the performances of a zinc oxide resistor from degrading.

Description

technical field [0001] The invention relates to the field of current collection components, and more specifically, relates to a constant temperature device for a current collection component used in a DC blocking device of a transformer. Background technique [0002] In recent years, EHVDC power transmission has been widely used in long-distance power transmission in my country due to its economical and efficient characteristics. The problem of the impact on the AC transformer is becoming more and more prominent. It has become the consensus of more and more scholars and experts to monitor the DC bias state of transformer and solve its influence on transformer. [0003] When monitoring the current or voltage in each circuit, it is necessary to use a current transformer for monitoring, so as to analyze the circuit situation, monitor and prevent accidents. [0004] However, for weather with large temperature difference or too cold and hot weather, the current transformer is ea...

AI Technical Summary

Problems solved by technology

[0006] In view of the fact that the current transformer in the prior art is easily affected by the ambient temperature, the measurement accuracy is not high, the error is large, and the analysis problem in the later stage is affected. device, which can effectively reduce the ambient humidity, and at the same time effectively prevent the large temperature gradient during operation, ensuring high measurement accuracy and small error, which is convenient for later analysis

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