CN2434775Y

CN2434775Y - Capacity compensating transformer

Info

Publication number: CN2434775Y
Application number: CN 00212566
Authority: CN
Inventors: 鞠世华; 张宪君; 刘祖植; 肖雪
Original assignee: SHENYANG ENERGY-SAVING TRANSFORMER FACTORY
Current assignee: SHENYANG ENERGY-SAVING TRANSFORMER FACTORY
Priority date: 2000-07-11
Filing date: 2000-07-11
Publication date: 2001-06-13
Anticipated expiration: 2010-07-11

Abstract

The utility model relates to a capacitance compensation transformer. The capacitance compensation transformer is suitable for power supply occasions with the inductive load, and is composed of a transformer body composed of an iron core, a winding, etc., a casing composed of a box cover and a box body, etc. A transformer body and a capacitor are divide into two parts by a spacer plate, the transformer body and the capacitor are both arranged in the box body, and the coil out end of the capacitor can be connected in parallel with the winding in the box body or can be led-out from the box body and a box cover. The utility model has the advantages that the capacitance compensation transformer can provide the compatibility output to a power supply network, enhances the power factor, reduces the reactive power loss, has convenient operation, etc.

Description

The capacitance compensation transformer

The utility model relates to the distribution transformer technical field, and exactly it is a kind of capacitance compensation transformer that is applicable to the power supply occasion of inductive load,

Existing distribution transformer is made up of iron core, winding, shell etc.Its purpose all is to change input and output transformation.The weak point that exists is: when inductive load was powered, as powering to motor, its power factor was low, reactive loss is big at transformer.

The purpose of this utility model is to provide a kind of power factor, reduction reactive loss and capacitance compensation transformer easy to use that can improve to the inductive load power supply.

The purpose of this utility model is achieved by the following scheme, the shell that device body, case lid and the casing that it is made of unshakable in one's determination and winding etc. constitutes etc. is formed, it is characterized in that: transformer body and capacitor (6) are separated into two parts by dividing plate (7), and transformer body and capacitor (6) all are contained in the casing (4).The leading-out terminal of capacitor (6) can be in parallel with winding in casing (4), or draw from casing (4) and case lid (5).So that in parallel with winding when using, capacitor (6) can be in parallel with the low pressure winding.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is the structural representation of the utility model three-phase transformer embodiment;

Fig. 2 is the elementary diagram of the utility model three-phase transformer embodiment;

Fig. 3 is the structural representation of the utility model single-phase transformer embodiment;

Fig. 4 be the utility model single-phase transformer embodiment meet present principles figure.

With reference to Fig. 1,2,3,4.Be built-in with iron core 1, high pressure winding 2, low pressure winding 3 at casing 4.In casing 4, also be equipped with capacitor 6.Capacitor 6 and transformer body part are separated by dividing plate 7.Present embodiment is that capacitor 6 is put a side at casing 4.The leading-out terminal a of capacitor 6 _c, b _c, c _cCan draw from shell, present embodiment is to draw from case lid 5.During use that capacitor 6 is in parallel with high pressure winding 2 or low pressure winding 3, capacitor 6 is generally in parallel better with low pressure winding 3.Can adopt the lower capacitor of voltage 6 like this, cost is reduced.In the three-phase transformer embodiment with capacitance compensation illustrated in figures 1 and 2, during use can with leading-out terminal a, the b of three-phase low pressure winding, c respectively with the leading-out terminal a of capacitor _c, b _c, c _cLink together, form parallel-connection structure.In Fig. 3 and the single-phase transformer embodiment with capacitance compensation shown in Figure 4, during use can with leading-out terminal a, the x of low pressure winding respectively with the leading-out terminal a of capacitor 6 _c, x _cLink together, form parallel-connection structure.The leading-out terminal of capacitor 6 also can not drawn shell, and is directly in parallel with high pressure winding 2 or low pressure winding 3 in the enclosure.A among Fig. 1,2, B, C are the leading-out terminal of three-phase high-voltage winding 3.A among Fig. 3,4, X are the leading-out terminal of single-phase high voltage winding 3.

From as can be seen above-mentioned, because transformer case is built-in with capacitor, it is in parallel with winding during use, makes transformer export the perceptual weight that the capacitive component that contains is gone balance or reduced inductive load.Therefore, the utlity model has the power factor that improves power supply network, reduce reactive loss and advantage such as easy to use.

Claims

1, capacitance compensation transformer, the shell that device body, case lid and the casing that it is made of unshakable in one's determination and winding etc. constitutes etc. is formed, it is characterized in that: transformer body and capacitor (6) are separated into two parts by dividing plate (7), and transformer body and capacitor (6) all are contained in the casing (4).

2, a kind of capacitance compensation transformer according to claim 1 is characterized in that: the leading-out terminal of capacitor (6) can be in parallel with winding in casing (4), or draw from casing (4) and case lid (5).

3, a kind of capacitance compensation transformer according to claim 1, it is characterized in that: capacitor (6) can be in parallel with the low pressure winding.