CN202183306U

CN202183306U - Support type combined electronic instrument transformer

Info

Publication number: CN202183306U
Application number: CN2011200950256U
Authority: CN
Inventors: 管清波; 陈俊锋; 贾建华; 吴雪锋; 吴家旺
Original assignee: Dalian No1 Instrument Transformer Co Ltd
Current assignee: Dalian No1 Instrument Transformer Co Ltd
Priority date: 2011-04-02
Filing date: 2011-04-02
Publication date: 2012-04-04
Anticipated expiration: 2021-04-02

Abstract

The utility model mainly discloses a support type combined electronic instrument transformer which comprises a current coil and a voltage coil. The current coil and the voltage coil are mutually and independently arranged and are integrally formed by epoxy resin through pouring. According to the support type combined electronic instrument transformer, a voltage transformer and a current transformer are combined in the same poured body and can take the place of two instrument transformers, so that the cost is largely saved, and the mounting process of an instrument transformer is also saved.

Description

A kind of column support type combined electronic transformer

Technical field

The utility model relates to the electric mutual inductor technical field, and is special relevant with a kind of column support type combined electronic transformer.

Background technology

On the market for 35kV and following column support type electric mutual inductor, traditional method generally is that electric current and voltage are made stand-alone configuration respectively at present, and each needs 3 electronic current mutual inductors and 3 electronic type voltage transformers to that is to say every phase.Because the electronic mutual inductor coil is less relatively, but in order to consider each side composite factor such as electric property, it is too little that the volume of instrument transformer can't be done again, and therefore very little coil is placed in the instrument transformer of big volume, has just caused great space waste.As shown in Figure 1, be electronic current mutual inductor, current coil 10 is covered by in the epoxy resin 20, exposes

primary winding terminals

30 and 40 as shown in Figure 2 on the end face.As shown in Figure 3, potential winding 50 independently is cast in the epoxy resin 20, forms electronic type voltage transformer, exposes high-voltage terminal as shown in Figure 4 60 on the end face.

So the inventor designs a kind of instrument transformer that voltage and current is combined to the problems referred to above, this case produces thus.

The utility model content

The purpose of the utility model is to provide a kind of column support type combined electronic transformer, and the voltage transformer summation current transformer is combined in the same pour mass.

To achieve these goals, the technical scheme of the utility model is:

A kind of column support type combined electronic transformer comprises current coil and potential winding, the separate placement of current coil and potential winding, and be integral by poured with epoxy resin.

Described current coil comprises primary winding and secondary coil, and the terminals of primary winding and secondary coil all are placed on the end face of epoxy resin poured body.

The high-pressure side of described potential winding links to each other with the primary winding terminals.

After adopting such scheme, an instrument transformer has just been gathered mutual induction of voltage and electric current mutual inductance function, and current coil and potential winding work alone mutually noninterfere separately.When being applied to switch cubicle; Only need the utility model be installed in the current switch cabinet; Just do not need again electronic type voltage transformer to be installed in the voltage switch cabinet, directly in the current switch cabinet, just can realize detecting the task of primary current and primary voltage signal, can replace two instrument transformers; Save cost greatly, also saved an instrument transformer installation procedure simultaneously.

Description of drawings

Fig. 1 is existing electronic current mutual inductor profile;

Fig. 2 is existing electronic current mutual inductor end view drawing;

Fig. 3 is existing electronic type voltage transformer profile;

Fig. 4 is existing electronic type voltage transformer end view drawing;

Fig. 5 is the utility model preferred embodiment generalized section;

Fig. 6 is the utility model preferred embodiment end view.

Embodiment

In conjunction with Fig. 5, Fig. 6, preferred embodiment explains further details to the utility model.

A kind of column support type combined electronic transformer; Comprise current coil 1 and potential winding 2; Current coil 1 and potential winding 2 separate placements; Then both are poured into an integrated entity with epoxy resin 3, the overall dimension of epoxy resin 3 can be the same with existing electronic current mutual inductor (as shown in Figure 1).Wherein, current coil 1 is divided into primary winding 11 and secondary coil 12, and the end face of each comfortable epoxy resin 3 exposes terminals 4, and the high-pressure side of potential winding 2 connects the terminals 4 of primary winding 11, on end face, shares a joint.

Present embodiment is identical with existing electronic current mutual inductor size in shape; But current transformer and voltage transformer and one have been gathered in inside; When being applied in the switch cubicle field, only need it to be installed in the current switch cabinet, just do not need again electronic type voltage transformer to be installed in the voltage switch cabinet; Directly in the current switch cabinet, just can realize detecting the task of primary current and primary voltage signal; Under the constant situation of guaranteed performance, realize the function of two kinds of instrument transformers, reduce cost significantly.

Claims

1. column support type combined electronic transformer is characterized in that: comprise current coil and potential winding, and the separate placement of current coil and potential winding, and be integral by poured with epoxy resin.

2. a kind of column support type combined electronic transformer shown in claim 1, it is characterized in that: described current coil comprises primary winding and secondary coil, the terminals of primary winding and secondary coil all are placed on the end face of epoxy resin poured body.

3. a kind of column support type combined electronic transformer shown in claim 1, it is characterized in that: the high-pressure side of described potential winding links to each other with the primary winding terminals.