CN2143354Y

CN2143354Y - Current mutual inductor with bus clip

Info

Publication number: CN2143354Y
Application number: CN 92221852
Authority: CN
Inventors: 刘再兴; 冯晓行
Original assignee: CHENGDU MUTUAL-INDUCTORS FACTORY
Current assignee: CHENGDU MUTUAL-INDUCTORS FACTORY
Priority date: 1992-12-10
Filing date: 1992-12-10
Publication date: 1993-10-06
Anticipated expiration: 2002-12-10

Abstract

The utility model provides a current mutual inductor with a bus clip, comprising a current mutual inductor which is composed of an iron core, a secondary winding on the iron core and an insulating casing. The insulating casing is provided with a bus perforation window, and the inner part of the window is provided with a pressing bracket used to press the bus (busbar) and a supporting component. The utility model can make the current mutual inductor directly fixed on the bus by a clamping component.

Description

Current mutual inductor with bus clip

The utility model relates to a kind of current transformer with the bus clamping device.

Known bus-type current transformer has two kinds of mounting meanss, the one, itself has mounting bracket instrument transformer, by mounting bracket it is installed in the crossbeam wall and does tight supporting, this mounting means is installed trouble owing to be subjected to the restriction of mounting condition to cause the bus processing difficulties.Second kind of mounting means is a kind of fixedly bus-type current transformer of Chinese CN2077578U patent disclosure, it is on instrument transformer busbar window both sides one convex shoulder to be arranged, screw is arranged on the convex shoulder, during installation on busbar two holes of subdrilling, the hole of passing on the busbar with screw is fastened on the current transformer again, but owing to bored two holes on busbar, the busbar conductive cross-sectional area is reduced, the busbar temperature rise increases, and still trouble is installed.

The purpose of this utility model is to provide a kind of current transformer that can current transformer directly be fixed on the band bus clamping device on the bus by clamping element.

The utility model provides a kind of current transformer with the bus clamping device, it comprises current transformer, current transformer is made up of secondary winding on iron core, the iron core and insulation crust, have bus perforation window on the insulation crust, be provided with in the window compress bus compress support and supporting member.

The above-mentioned support that compresses is a Ω shape, and two ends have to match with it and compress the trip bolt of bus, and supporting member is compressing the support bottom.

The bus of current transformer places to compress and passes institute's bus of opening perforation window on the current transformer insulation crust between support and the supporting member during installation, tightens trip bolt, and trip bolt and supporting member clamp bus.

The utlity model has following characteristics:

1. can save the mounting bracket of bus-type current transformer;

2. need on bus, not hole, therefore not hinder bus and help heat radiation and improve thermally-stabilised multiple;

3. be applicable to various bus-type current transformers, can be installed in any position of bus as required, flexible.

Fig. 1 front view of the present utility model.

Fig. 2 partial sectional view of the present utility model.

Accompanying drawing 1～Fig. 2 has described an embodiment of the present utility model.It comprises current transformer, current transformer is by iron core (1), the secondary winding (2) and the insulation crust (3) that are arranged on the iron core (1) are formed, have bus perforation window (4) at the middle part of insulation crust (3), be provided with in the perforation window (4) compress bus (8) compress support (5) and supporting member (6).Compress support (5) for Ω shape, there is the trip bolt that compresses bus (8) (7) that matches with it at two ends, and supporting member (6) places the bottom that compresses support (5).Compressing support (5) and supporting member (6) in the present embodiment all adopts thin strip metal to make.The lower end of insulation crust (3) is provided with secondary connection end K1, K2.

Claims

1, a kind of current transformer with the bus clamping device, it comprises current transformer, current transformer is made up of secondary winding on iron core, the iron core and insulation crust, of the present utility model being characterised in that has bus perforation window on the insulation crust, be provided with in the window compress bus compress support and supporting member.

2, the current transformer of band bus clamping device according to claim 1 is characterized in that the described support that compresses is a Ω shape, and there is the trip bolt that compresses bus that matches with it at two ends, and supporting member is compressing the support bottom.