CN202816579U

CN202816579U - Two-way output transformer

Info

Publication number: CN202816579U
Application number: CN 201120471636
Authority: CN
Inventors: 刘荣坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-14
Filing date: 2011-11-13
Publication date: 2013-03-20
Anticipated expiration: 2021-11-13

Abstract

The utility model relates to a two-way output transformer. The two-way output transformer comprises a transformer oil tank, an iron core, an input winding, an output winding, an input sleeve, two output sleeves, a mark and other whole-machine accessories, wherein the output winding of the transformer can be a single-phase or three-phase winding. The two-way output transformer is characterized in that normally open circuits are arranged at the head ends and the tail ends at the wire outlet end of the output winding of the transformer; a first power supply output line is arranged at the head end of the outlet wire of each phase of the winding; a second power supply output line is arranged at the tail end of the outlet wire of each phase of the winding; and the first power supply output line at the head end of the transformer is connected with first-line power utilization equipment, and the second power supply output line at the tail end is connected with second-line power utilization equipment, thereby constituting the closed circuit of the power utilization equipment to be used as a public loop. Compared with a conventional similar transformer, the two-way output transformer disclosed by the utility model is low in temperature rise, and can realize energy conservation and emission reduction because capacity can be increased by above 30%.

Description

A kind of two-way output transformer

Technical field:

The utility model relates to a kind of improvement technology of transformer, particularly a kind of high efficiency two-way output transformer.

Background technology:

At present, all indicate the number of phases (single-phase or three-phase) rated capacity on the nameplate that conventional transformer is every, rated frequency, no-load current, each winding rated voltage, each winding rated current, joint group label, winding coupling schematic diagram etc.Three-phase transformer first side winding and secondary side winding adopt star and two kinds of connections of triangle usually.Major part is step-down transformer in enterprise and civilian transformer, changes high-voltage variable into needs that different brackets voltage satisfies each type load.In the situation of temperature rise in summer and overload, the switchgear house air switch often trips, even burns out controller switching equipment and make troubles to productive life.

Summary of the invention:

The purpose of this utility model is that a kind of high efficiency two-way output transformer will be provided, and improves output winding connecting circuit on the basis of transformer of the same type and reduces the wastage, and increases the load capacity of transformer, can reduce cost, improves utilization rate.

The utility model is such structure: it comprises the fuel tank of transformer, iron core, the input winding, the output winding, the input sleeve pipe, output two-way sleeve pipe, whole the accessories such as sign, described transformer output winding can single-phase winding or three phase windings, it is characterized in that: all first and last ends of winding terminal of described transformer output are normal open circuit, the head end of its each phase winding outlet is the power supply output first via, the end of each phase winding outlet is that power supply exports the second the tunnel, the described Transformer Winding head end power supply output first via is connected with first via power consumption equipment, and winding end power supply is exported the second the tunnel and is connected with the second road power consumption equipment, and the closed circuit of formation power consumption equipment becomes their common return.(namely the closure of the first and last end of single-phase or three-phase transformer output winding is directly moved in the closed circuit of first via power consumption equipment and the second road power consumption equipment and go to the closed closed-loop path that consists of, the input winding is constant by former design).

The similar transformer with routine of the utility model two-way output transformer is compared, the joint sleeve of winding output is many one road high pressure or low pressure, and other cost is identical, because temperature rise is low, can increase by 30% above installed capacity, is the good equipment of energy-saving and emission-reduction.

Description of drawings:

The below is the organigram of the utility model embodiment three-phase two-way output transformer winding, (single-phase transformer omission).

Fig. 1 is that the output winding terminal two-way of three-phase two-way output transformer is exported normal open circuit, a1 is that a phase head end a2 is that a is terminal mutually among the figure, b1 is that b phase head end b2 is that b is terminal mutually, c1 is that c phase head end c2 is that c is terminal mutually, the three-phase head end is output take a1, b1, c1 as first via three phase mains, terminally exports take a2, b2, c2 as the second road three phase mains.

Fig. 2 is conventional three-phase transformer winding delta connection icon, and Fig. 3 is conventional three-phase transformer winding star connection icon.

The input of Fig. 4 winding is star connection, the input of Fig. 5 winding is delta connection, A among the figure of Fig. 4 and Fig. 5, B, C is respectively three-phase transformer A phase, the B phase, C phase and each phase power supply incoming junction, N is the neutral earthing line, a1, b1, c1 is the three-phase transformer winding head end power supply output first via, (1) is first via three phase electric equipment, F1 is the A phase among its figure, E1 is the B phase, D1 is the C phase, a2, b2, c2 is that the terminal power supply of three-phase transformer winding exports the second the tunnel, (2) be the second road three phase electric equipment, D2 is the A phase among its figure, E2 is the B phase, F2 is the C phase.

Embodiment:

Circuit connection diagram by Fig. 4 or Fig. 5 two-way output three-phase transformer institute icon is connected A, B, C respectively with power supply A phase, B phase, C, output winding head end power supply first via a1, b1, c1 respectively with (1) first via three phase electric equipment figure in F1 be that A phase, E1 are that B phase, D1 are C use that be connected, output winding end power supply the second road a2, b2, c2 respectively with (2) the second road three phase electric equipment figure in D2 be that A phase, E2 are that B phase, F2 are the C uses that is connected.

It is identical with the technology of existing transformer that the utility model is not stated part.

Claims

1. two-way output transformer, it comprises whole accessory, described transformer output winding can single-phase winding or three phase windings, it is characterized in that: all first and last ends of winding terminal of described transformer output are normal open circuit, the head end of its each phase winding outlet is the power supply output first via, the end of each phase winding outlet is that power supply exports the second the tunnel, the described Transformer Winding head end power supply output first via is connected with first via power consumption equipment, the terminal power supply of winding is exported the second the tunnel and is connected with the second road power consumption equipment, and the closed circuit of formation power consumption equipment becomes their common return.