RU2014118664A

RU2014118664A - DEVICE FOR PROTECTION AGAINST INTERCONNECTIONS OF SECONDARY CIRCUITS OF CURRENT TRANSFORMERS

Info

Publication number: RU2014118664A
Application number: RU2014118664/07A
Authority: RU
Inventors: Николай Малафеевич Попов; Владимир Викторович Кичигин
Priority date: 2014-05-07
Filing date: 2014-05-07
Publication date: 2015-11-20
Also published as: RU2621706C2

Abstract

Устройство для защиты от обрывов вторичных цепей трансформаторов тока, содержащее трансформатор тока с одной первичной и двумя вторичными обмотками, первую и вторую нагрузки вторичных цепей трансформаторов тока, отличающееся тем, что в схему введен промежуточный трансформатор с двумя первичными обмотками и с одной вторичной обмоткой, причем к первой вторичной обмотке трансформатора тока подключены последовательно соединенные первая нагрузка и первая первичная обмотка промежуточного трансформатора, ко второй вторичной обмотке трансформатора тока подключены последовательно соединенные вторая нагрузка и вторая первичная обмотка промежуточного трансформатора, включенная встречно с первой первичной обмоткой промежуточного трансформатора, а вторичная обмотка промежуточного трансформатора соединена с реагирующим органом, органом выдержки времени и с исполнительным органом.A device for protecting against breakage of the secondary circuits of current transformers, comprising a current transformer with one primary and two secondary windings, a first and second load of the secondary circuits of current transformers, characterized in that an intermediate transformer with two primary windings and with one secondary winding is introduced into the circuit, the first load and the first primary winding of the intermediate transformer are connected in series to the first secondary winding of the current transformer, to the second secondary winding of the trans The current formatter is connected in series with the second load and the second primary winding of the intermediate transformer, connected in opposition to the first primary winding of the intermediate transformer, and the secondary winding of the intermediate transformer is connected to the reacting body, the time delay body and the executive body.

Claims

A device for protecting against breakage of the secondary circuits of current transformers, comprising a current transformer with one primary and two secondary windings, a first and second load of the secondary circuits of current transformers, characterized in that an intermediate transformer with two primary windings and with one secondary winding is introduced into the circuit, the first load and the first primary winding of the intermediate transformer are connected in series to the first secondary winding of the current transformer, to the second secondary winding of the trans The current formatter is connected in series to the second load and the second primary winding of the intermediate transformer, connected in opposition to the first primary winding of the intermediate transformer, and the secondary winding of the intermediate transformer is connected to the reacting body, the time delay body and the executive body.