Mounting device and measuring device of current transformer and transformer system

Abstract

The invention relates to a mounting device and a measuring device of a current transformer and a transformer system. The mounting device of the current transformer comprises an insulating cylinder, an insulating part and grooves, wherein the outer wall of the insulating cylinder is provided with the current transformer; the insulating part comprises first insulating plates and second insulating plates, each first insulating plate and each second insulating plate comprise insulating plate holes, and each first insulating plate and each second insulating plate are arranged on the outer wall of the insulating cylinder in a sleeving mode through the corresponding insulating plate holes; an insulating plate inner surface of the current transformer is faced; the outer surface of the insulating plate of the current transformer is arranged in a back-to-back mode; and the grooves at least comprise a first annular groove and a second annular groove which are formed in the inner surface of the insulating plate and are concentric with the opening of the insulating plate, and a corresponding metal ring is arranged in each of the first annular groove and the second annular groove. And by arranging the insulating cylinder and the metal ring, the current transformer can be prevented from being broken down by a strong electromagnetic field so that the maintenance of the transformer is safer.

Description

technical field [0001] The present invention relates to the field of transformers, and more particularly, to a mounting device for a current transformer, a measuring device for a transformer, and a transformer system. Background technique [0002] In the application field of transformers, in order to make on-site users safe and convenient to operate, plug-in cable terminals are usually used. When replacing the bushing of the transformer, the user only needs to unplug the bushing from the cable terminal for simple replacement. Pluggable cable terminals bring great convenience to users. [0003] However, a current transformer (CT, current transformer) cannot be placed at the tail of such a plug-in cable terminal structure, so users cannot use the current transformer placed at the tail of the plug-in cable terminal to monitor the temperature of the transformer winding and measure electricity. [0004] As an effective solution, current transformers can be placed on the leads c...

AI Technical Summary

Problems solved by technology

However, when the voltage of the transformer is relatively high, for example, 66KV, 72.5KV or 220KV, the conventional current transformer is broken down due to the strong electromagnetic field on the lead wire, so it cannot work normally

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