CN2488154Y

CN2488154Y - Plug-type outlet terminal resin insulated air immersed transformer

Info

Publication number: CN2488154Y
Application number: CN 01230551
Authority: CN
Inventors: 沈玉山; 张林兴
Original assignee: WENZHOU CITY TRANSFORMING EQUIPOMENT FACTORY
Current assignee: WENZHOU CITY TRANSFORMING EQUIPOMENT FACTORY
Priority date: 2001-07-19
Filing date: 2001-07-19
Publication date: 2002-04-24
Anticipated expiration: 2011-07-19

Abstract

The utility model relates to a plug-type outlet terminal resin insulated air immersed transformer for indoor or articulated transformer substation, in particular to the improvement of the electric connection device of the outlet terminal. The characteristic is that the transformer is provided with a socket consisting of a conducting rod provided with an inner cavity of the socket and a hollow columnar elastic conducting body arranged in the inner cavity of the socket of the conducting rod, a leader of a high tension coil is fixedly connected with the socket; the socket, the high tension coil, and the leader are placed in a same insulating casting body. The advantages are that: the connection operation of the outlet terminal is convenient, the connection is reliable; the leak tightness of the terminal is good, the contact resistance is small, the dielectric strength is high.

Description

Plug-in outlet terminal resin insulating dry type transformer

The utility model relates to and is used for indoor or is used for the improvement of arrangements of electric connection of the resin insulating dry type transformer, particularly its outlet terminal of assembly transformer substation.

Traditional resin insulating dry type transformer comprises iron core, the high and low pressure coil, and upper and lower folder, its outlet terminal adopts bolt to be connected with cable or copper bar, and weak point is the connection complex process; Binding post is exposed to moisture-sensitive oxidation in the air, causes faults such as loose contact, junction heating; Also cause the outlet short circuit accident easily.

The purpose of this utility model provide a kind of outlet terminal attended operation easy, refute and connect reliable plug-in outlet terminal resin insulating dry type transformer.

In order to achieve the above object, the technical solution adopted in the utility model is as follows: a kind of plug-in outlet terminal resin insulating dry type transformer comprises iron core, high and low pressure coil, upper and lower folder; Also comprise socket, this socket by the conducting rod that is provided with the socket inner chamber, place the hollow columnar elastic electric conductor of conducting rod socket inner chamber to form, the lead-in wire of described high-tension coil is fixedly connected on the socket, and socket, high-tension coil, lead-in wire are cast in the same insulation pouring body.

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

Fig. 1 is the front view of the utility model embodiment.

Fig. 2 looks partial sectional view for the left side of Fig. 1.

Fig. 3 is the zoomed-in view of A among Fig. 2.

As shown in Figure 1, 2, the plug-in outlet terminal resin insulating dry type transformer of the utility model embodiment comprises low pressure outlet terminal 1, hook 2, upper clamping piece 3, socket 4, cushion block 5, lower clamping piece 6, blower fan 7, insulating cover 8, low-voltage coil 9, high-tension coil 10, insulation pouring body 11, iron core 12, lead-in wire 13.As shown in Figure 3, socket 4 is by conducting rod 14, hollow columnar elastic electric conductor 15 is formed, conducting rod 14 is provided with the socket inner chamber, this socket inner chamber is designed to concavo-convex step, section diameter minimum at the bottom of the chamber, hollow columnar elastomer 15 is to be processed into louver by elastic sheet metal to be cancavo-convex blind window shape, the louver two ends are to extending outside window and tilting to the same side, form through silver-plated rolling, when hollow posts shape elastic electric conductor 15 places conducting rod 14 socket inner chambers, correct before it by section at the bottom of the chamber of diameter minimum and block, to prevent that elastic electric conductor 15 is subjected to displacement, the lead-in wire 13 of high-tension coil 10 is welded on the socket 4, socket 4, high-tension coil 10, lead-in wire 13 is cast in the same insulation pouring body 11.When installing and using, the high-voltage outlet terminal of transformer is connected with corresponding curved formula cable tail device plug-in, and hook 2 is used to hang up the cable tail device, and insulating cover 8 is used to seal the terminal socket of not outlet.

Certainly, the low pressure outlet terminal is if needs also can make plug-in.

The utility model compared with prior art, advantage is as follows:

1, plug-in connects, and makes attended operation easy, refutes to connect reliably;

2, terminal sealing is good, and contact resistance is little, the dielectric strength height.

Claims

1, a kind of plug-in outlet terminal resin insulating dry type transformer, comprise iron core, the high and low pressure coil, upper and lower folder, it is characterized in that also comprising socket (4), socket (4) by the conducting rod that is provided with the socket inner chamber (14), place the hollow columnar elastic electric conductor (15) of conducting rod (14) socket inner chamber to form, the lead-in wire (13) of described high-tension coil (10) is fixedly connected on the socket (4), and socket (4), high-tension coil (10), lead-in wire (13) are cast in the same insulation pouring body (11).