RU2013150588A

RU2013150588A - CAST CURRENT TRANSFORMER

Info

Publication number: RU2013150588A
Application number: RU2013150588/07A
Authority: RU
Inventors: Алексей Николаевич Аничкин; Радик Фаридович Раскулов
Original assignee: Открытое акционерное общество "Свердловский завод трансформаторов тока"
Priority date: 2013-11-13
Filing date: 2013-11-13
Publication date: 2015-05-20
Also published as: RU2566469C2

Abstract

1. Литой трансформатор тока, содержащий первичную обмотку и, по крайней мере, одну вторичную с магнитопроводом обмотку, концентричную первичной, охватывающую ее снаружи, первый экран, отделенный от первичной и вторичной обмоток посредством литой эпоксидной изоляции, не заземленный и не имеющий электрического соединения с обмотками, отличающийся тем, что он содержит второй экран, размещенный параллельно первому экрану между ним и одной из вторичных обмоток, электрически изолированный от первого экрана и заземленный.2. Литой трансформатор тока по п. 1, отличающийся тем, что он содержит n дополнительных экранов, размещенных параллельно первому и второму экранам, электрически изолированных от них и между собой, и не заземленных, где n - целое число, ≥1.1. Cast current transformer containing a primary winding and at least one secondary winding with a magnetic core, concentric with the primary winding, enveloping it from the outside, the first screen separated from the primary and secondary windings by cast epoxy insulation, not grounded and not electrically connected to windings, characterized in that it comprises a second screen arranged parallel to the first screen between it and one of the secondary windings, electrically isolated from the first screen and grounded. 2. The cast current transformer according to claim 1, characterized in that it contains n additional screens placed parallel to the first and second screens, electrically isolated from them and between each other, and not grounded, where n is an integer, ≥1.

Claims

1. Cast current transformer containing a primary winding and at least one secondary winding with a magnetic core, concentric with the primary winding, enveloping it from the outside, the first screen separated from the primary and secondary windings by cast epoxy insulation, not grounded and not electrically connected to windings, characterized in that it comprises a second screen arranged parallel to the first screen between it and one of the secondary windings, electrically isolated from the first screen and grounded.

2. A cast current transformer according to claim 1, characterized in that it contains n additional screens placed parallel to the first and second screens, electrically isolated from them and between each other, and not grounded, where n is an integer, ≥1.