Electronic current transformer with temperature measurement device

Abstract

The invention relates to electronic current transformers and provides an electronic current transformer which is provided with a temperature measurement device, capable of monitoring temperature of the electronic current transformer in real time and keeping the structure and the function of the electronic transformer, and integrated with the temperature measurement device. The electronic current transformer comprises an electronic current transformer in which a temperature sensor is arranged; the temperature sensor is integrated with the electronic current transformer; the temperature sensor is provided with an optical temperature measurement element and a signal transmission optical fiber; the optical temperature measurement element is embedded in the electronic current transformer; and the signal transmission optical fiber is arranged in the electronic current transformer.

Description

technical field [0001] The invention relates to an electronic current transformer, in particular to an electronic current transformer with a temperature measuring device used in power transmission and transformation power equipment (such as a high-voltage switch cabinet). Background technique [0002] The strategic goal of my country's "strong and smart grid" is to be strong and intelligent. With the deepening of my country's strong and smart grid construction and the continuous expansion of power transmission coverage, once an accident occurs in a particularly large power grid and cannot be eliminated quickly, it is likely to cause damage and uncontrollable chain reactions, resulting in large-scale and long-term power outages. The political stability and economic security of the society have a serious impact, which is unmatched by accidents in other industries. For this reason, it is urgent to carry out all-round real-time or regular online monitoring of the operation statu...

AI Technical Summary

Problems solved by technology

[0007] There are many deficiencies in the various temperature measuring devices currently used, such as: they cannot be installed independently, they must be attached to the conductive arm or busbar of the handcart; The impact of large current shock on the product; the impact on the insulation and withstand voltage of power equipment after installation is not considered; the stability of the product in abnormal high temperature environment is not considered; especially there is no intelligent function, etc.

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