CN202205569U

CN202205569U - Voltage transformer

Info

Publication number: CN202205569U
Application number: CN2011203336957U
Authority: CN
Inventors: 滕元强; 马玉洁; 宁传仁; 张传城; 施晨沛; 李文东; 李鸿楠
Original assignee: DALIAN HUAXIA TAIKE ELECTRICAL GROUP Co Ltd
Current assignee: DALIAN HUAXIA TAIKE ELECTRICAL GROUP Co Ltd
Priority date: 2011-09-07
Filing date: 2011-09-07
Publication date: 2012-04-25
Anticipated expiration: 2021-09-07

Abstract

The utility model discloses a voltage transformer which comprises a shell, a primary coil, a secondary coil and an iron core. The primary coil is composed of a phase-A primary winding and a phase-B primary winding; and the secondary coil is composed of a phase-A secondary coil and a phase-B secondary coil. The primary coil corresponds to an inner layer, the secondary coil corresponds to an outer layer, and the primary coil and secondary coil are coaxially arranged on the iron core; the leading-out lines at the two ends of the phase-A winding of the primary winding of the primary coil are correspondingly connected with two phase-A primary wire connecting terminals through two insulating tower columns respectively; and the leading-out lines at the two ends of the phase-B winding of the primary coil are correspondingly connected with two phase-B primary wire connecting terminals through two first insulating tower columns respectively. The four leading-out lines of the phase-A secondary winding and the phase-B secondary winding of the secondary coil are correspondingly connected with four wire connecting terminals on the outer wall of the shell respectively. In the utility model, the inter-layer insulation thickness is increased so that the overvoltage resistance of the product is enhanced; and moreover, the voltage transformer disclosed by the utility model is stable in performance, reliable in operation, low in operation cost, and convenient to install, easy to operate and suitable for the transformer production industry and power maintenance.

Description

A kind of voltage transformer

Technical field

The utility model relates to a kind of instrument transformer, specifically is a kind of voltage transformer.

Background technology

Traditional voltage instrument transformer floor space is huge, and the equipment of use is just many, and the investment funds are more, and maintenance on ordinary days is also big, and operation cost is just high naturally.

To the problem of above-mentioned existence, the professional person takes measures to solve this fundamental issue by every means.Yet in the whole bag of tricks on probation, exist shortcoming and problem separately, such as scheme is complicated, the components and parts of use are more; Cause virtually installation, the operation all comparatively bothersome; Cost is also high naturally, weighs the advantages and disadvantages, and these methods on probation do not suit in practical power systems, to promote the use of.

The utility model content

The purpose of the utility model is big to present voltage transformer occupation of land space, problems such as trouble is installed, thereby provides a kind of anti overvoltage ability voltage transformer strong, easy to install.

The technical scheme that adopts is:

A kind of voltage transformer comprises housing, primary winding, secondary coil and port type iron core;

Primary winding by A mutually winding and B mutually winding be wrapped in respectively on skeleton;

Secondary coil by A phase secondary winding and B mutually secondary winding form, A phase secondary winding and B secondary winding mutually are wrapped on the secondary skeleton respectively;

The A of primary winding is winding and B corresponding nexine of winding mutually mutually, and the A phase secondary winding of secondary coil and B be the corresponding skin of secondary winding mutually, and coaxially is installed in two C sections cores respectively and docks on the stem stem of port type iron core of formation;

The A of primary winding mutually winding and B mutually winding, secondary coil A phase secondary winding and B mutually secondary winding install on the port type iron core afterwards by poured with epoxy resin structure in aggregates, epoxy resin poured body is housing;

The two ends lead-in wire of the A phase winding of primary winding is respectively through two insulation king-posts and two A corresponding connection of primary connection terminal mutually, and the two ends lead-in wire of the B phase winding of primary winding is respectively through two first insulation king-posts and the B corresponding connection of two primary connection terminals mutually;

The A phase secondary winding of secondary coil and four lead-out wires of B phase secondary winding respectively with the housing outer wall on four corresponding connections of secondary connection terminal being provided with.

The advantage of the utility model is:

The utility model has increased layer insulation thickness, and product anti overvoltage ability is strengthened.

Adopt two C shape iron core butt joints of high-quality to be the alternative laminated core of port type iron core, the no-load loss and the no-load current of iron core are all little, have improved the carrying load ability of product; Simultaneously also improved operating efficiency, volume is little, and is in light weight; Dwindle the occupation of land space, be easy to the installation of any direction.

The utility model stable performance, reliable, easy for installation, simple to operate, operation cost is low, and suitable instrument transformer production industry and electric power maintenance are used.

Description of drawings

Fig. 1 is the external form sketch map of the utility model.

Fig. 2 is the internal structure sketch map of the utility model.

Fig. 3 is that cross-sectional schematic is looked on the left side of Fig. 2.

Embodiment

A kind of voltage transformer comprises housing 10, primary winding, secondary coil and port type iron core 9;

Primary winding by A mutually winding 3 and B mutually a winding 4 form, winding 3 of A phase and B winding 4 mutually are wrapped in respectively on skeleton 7;

Secondary coil by A phase secondary winding 5 and B mutually secondary winding 6 form, A phase secondary winding 5 and B secondary winding 6 mutually are wrapped in respectively on the secondary skeleton 8;

The A of primary winding is winding 3 and B winding 4 corresponding nexines mutually mutually, and the A phase secondary winding 5 of secondary coil and B be secondary winding 6 corresponding skins mutually, and coaxially are installed in two C sections cores respectively and dock on the stem stem of port type iron core 9 of formation;

The A of primary winding mutually winding 3 and B mutually winding 4, secondary coil A phase secondary winding 5 and B mutually secondary winding 6 install on the port type iron core afterwards by poured with epoxy resin structure in aggregates, epoxy resin poured body is housing 10;

The A of the primary winding two ends lead-in wire of a winding 3 mutually passes through two insulation king-posts 11 and two A primary connection terminal 1 corresponding connection mutually respectively, and the two ends lead-in wire of a winding 4 of B phase of primary winding is respectively through two first insulate king-posts 12 and B two primary connection terminals, 2 corresponding connections mutually;

The A phase secondary winding 5 of secondary coil and four lead-out wires of B phase secondary winding 6 respectively with housing 10 outer walls on four corresponding connections of secondary connection terminal being provided with. ?

Claims

1. a voltage transformer comprises housing (10), primary winding, secondary coil and port type iron core (9); It is characterized in that:

Primary winding by A mutually a winding (3) and B mutually a winding (4) form, an A winding of phase (3) and B a winding (4) mutually are wrapped in respectively on the skeleton (7);

Secondary coil by A phase secondary winding (5) and B mutually secondary winding (6) form, A phase secondary winding (5) and B secondary winding (6) mutually are wrapped in respectively on the secondary skeleton (8);

The A of primary winding is a winding (3) and the B corresponding nexine of a winding (4) mutually mutually; The A phase secondary winding (5) of secondary coil and B secondary winding (6) mutually are corresponding outer, and on the coaxial stem stem that is installed in the port type iron core (9) that two C sections cores butt joints constitute respectively;

The A of primary winding mutually a winding (3) and B mutually a winding (4), secondary coil A phase secondary winding (5) and B mutually secondary winding (6) install on the port type iron core afterwards by poured with epoxy resin structure in aggregates, epoxy resin poured body is housing (10);

The A of the primary winding two ends lead-in wire of a winding (3) mutually passes through two insulation king-posts (11) and two A corresponding connections of primary connection terminal (1) mutually respectively, and the two ends lead-in wire of a B winding of phase (4) of primary winding is respectively through two first insulate king-posts (12) and the B corresponding connections of two binding posts (2) mutually;

The A phase secondary winding (5) of secondary coil and four lead-out wires of B phase secondary winding (6) respectively with housing (10) outer wall on four corresponding connections of secondary connection terminal being provided with.