CN201562773U

CN201562773U - Center tap of high-fit adjustable tubular bus

Info

Publication number: CN201562773U
Application number: CN2009202591937U
Authority: CN
Inventors: 马岩; 田齐鹏
Original assignee: JINSHI RONGRUI ELECTRICAL EQUIPMENT CO Ltd
Current assignee: JINSHI RONGRUI ELECTRICAL EQUIPMENT CO Ltd
Priority date: 2009-11-09
Filing date: 2009-11-09
Publication date: 2010-08-25
Anticipated expiration: 2019-11-09

Abstract

The utility model discloses a center tap of a high-fit adjustable tubular bus, which is a metal cylinder. Two ends of the center tap are provided with 2-6 axial opening grooves which are evenly distributed on the transverse sectional plane, wherein the length of each opening groove is equal to each other, the lengths are 130-170mm, and the widths are 1-3mm. The surface of the inner hole of the cylinder is refined, wherein the refining length of the inner hole is equal to the length of the opening groove. Under construction, the terminal of the tubular bus which needs to be connected is inserted into the center tap and is held with a special hoop to insulate. The center tap has the following advantages: 1. the connection between the center tap and the tubular bus is in the form of the axial opening grooves, so that the center tap is conveniently connected with a main pipe; 2. the inner hole of the center tap is refined to be fitted with the tubular bus with high degree, so that the contact area is larger, and the increase of the temperature is low; and 3. the length of the center tap can be freely designed as required, so that the center tap can be used by replacing an adjusting pipe according to the actual requirement of the construction, thereby reducing the connection points and the increase of the temperature.

Description

The high adjustable type tube type bus center tap that coincide

Technical field

The utility model relates to power equipment, i.e. the identical adjustable type tube type bus center tap of the height that uses in the transformer station.

Background technology

In recent years, in transformer station, use tube type bus to be promoted gradually, it is compared with traditional rectangular bus bar has multiple advantages: electric insulating quality is strong, ampacity is big, kelvin effect is low, power loss is little, the temperature rise performance is good, mechanical strength is high, anti-electric vibratility is strong, applied widely, has become the traditional rectangular bus bar and the regeneration product of aerial cable.

In the installation of tube type bus, the middle joint connector that is absolutely necessary, the transition joint of tube type bus at present has two kinds of modes, the one, inner connection mode, with the adjacent two ends that junction block inserts two tube type bus, there is axial open seam the tube type bus end, and the external diameter of junction block equates with the internal diameter of tube type bus, because contact area is little, so temperature rise is higher during work; The 2nd, outer connected mode, the external diameter of junction block internal diameter and tube type bus equates that an axial elongated open seam is arranged on the joint tube wall, the other engaging lug that is fixed with of open seam, several screws are arranged on the engaging lug, tube type bus is inserted in the junction block, and junction block and tube type bus are fixed with screw, junction block needs very long sometimes, reach 5～6m, the processing open seam is very difficult, so the length of junction block is shorter usually, fix, can not use as adjustable pipe.

Summary of the invention

For overcome the tube type bus center tap in connect little, the temperature rise of mode contact-making surface, the shortcoming of the open seam processing difficulties of external mode junction block the utility model proposes a kind of new design of high identical adjustable type tube type bus center tap.

This height adjustable type tube type bus center tap that coincide is metallic cylinder, it is characterized in that, two ends have 2～6 axial open slots, and on the cross section, open slot is equally distributed, the equal in length of each open slot, long 130～170mm, opening groove width 1～3mm.

Inner hole surface at cylinder has been carried out fine finishining, the equal in length of accurately machined length of endoporus and open slot.

In construction, insert in the center tap end of the tube type bus that needs are connected, and holds tightly with special-purpose anchor ear and doing the insulation processing again.

Advantage of the present utility model: 1, the form of shaft orientation opening groove is adopted in the junction of center tap and tube type bus, makes that the joint and the person in charge's is easy to connect; 2, the joint endoporus reaches the effect that is identical by processed with tube type bus, and contact area is big, and temperature rise is low; 3, can design the length of center tap as required arbitrarily, the GB tube type bus length of domestic production at present is 6m, like this, so long as the installation tube type bus just must adopt adjustable pipe, this product can be according to the actual needs of construction, replace adjustable pipe to use, thereby reduce tie point, reduce temperature rise.

Description of drawings

Fig. 1 is a front view of the present utility model

Fig. 2 is a left view of the present utility model

Among the figure: 1, cylinder, 2, open slot, 3, inner hole surface.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in detail as follows:

In Fig. 1, this height adjustable type tube type bus center tap that coincide is metallic cylinder 1, and two ends have 4 axial open slots 2, and in Fig. 2, open slot 2 is equally distributed, the equal in length of each open slot 2, long 150mm, opening groove width 2mm.

Inner hole surface 3 at cylinder has been carried out fine finishining, the equal in length of accurately machined length of endoporus and open slot.

Claims

1. the high adjustable type tube type bus center tap that coincide is metallic cylinder, it is characterized in that two ends have 2～6 axial open slots, and on the cross section, open slot is equally distributed, the equal in length of each open slot, long 130～170mm, opening groove width 1～3mm.

2. the height according to claim 1 adjustable type tube type bus center tap that coincide is characterized in that, has carried out fine finishining in the inner hole surface of cylinder, the equal in length of accurately machined length of endoporus and open slot.