CN203339604U

CN203339604U - T-shaped phase-change common-box bus

Info

Publication number: CN203339604U
Application number: CN2013204111907U
Authority: CN
Inventors: 付二寅; 张五杰; 张垒; 段阿利; 孙丹丹
Original assignee: Henan Pinggao Toshiba High Voltage Switchgear Co Ltd
Current assignee: Henan Pingzhi High Voltage Switchgear Co ltd
Priority date: 2013-07-11
Filing date: 2013-07-11
Publication date: 2013-12-11
Anticipated expiration: 2023-07-11

Abstract

The utility model discloses a T-shaped phase-change common-box bus. The T-shaped phase-change common-box bus comprises a main barrel body with a sealed end, wherein a first branch barrel body and a second branch barrel body which are mutually communicated are vertically arranged at the two opposite sides of the main barrel body; a first conductor, a second conductor and a third conductor are arranged in the main barrel body; a fourth conductor connected with a single-phase VT is arranged in the first branch barrel body; a fifth conductor, a sixth conductor and a seventh conductor are arranged in the second branch barrel body; the fifth conductor is vertically arranged between the first conductor and the second conductor in a penetrating manner; the third conductor is connected with the fifth conductor; the first conductor is connected with the seventh conductor; the second conductor is connected with the sixth conductor; and the fourth conductor is connected with the seventh conductor. With the adoption of the technical scheme aforementioned, the T-shaped phase-change common-box bus disclosed by the utility model is reasonable in design, simple in structure, capable of meeting butt-joint phase sequence requirements on products and meeting butt-joint requirements on products and the single-phase VT on the basis of decreasing cost as far as possible, strong in practicability, and easy to popularize and apply.

Description

A kind of T-shaped commutation common box bus

Technical field

The utility model belongs to GIS(Gas Insulated metal-enclosed Switchgear, the gas isolated metal enclosed switchgear of SF6) technical field, the particularly T-shaped commutation common box bus of a kind of space physics commutation of substation project application.

Background technology

GIS (Gas Insulated metal-enclosed Switchgear, the gas isolated metal enclosed switchgear of SF6) because of plurality of advantages such as its compact conformation, floor space are little, the environment tolerance is strong, handling safety, good looking appearances, in transformer station, be widely used in recent years.GIS is as the nucleus equipment of super-huge transformer station; its inside organically combines by parts such as circuit breaker, isolating switch, earthed switch, instrument transformer, lightning arrester, cable terminations; outside is protected by metal shell, fills the insulating gas with SF6 in housing.

Along with the extensive use of GIS, the metering at each interval of GIS, protection equipment is ever more important also, and spacer element collocation form as shown in Figure 1 is more common, and each component names is respectively:

GCB: gas-break switch (Gas Current Breaker)

DS: isolating switch (Disconnector)

ES: earthed switch (Earthing switch)

HES: high speed grounding switch (High-speed Earthing Switch)

CT: current transformer (Current Transformer)

VT: voltage transformer (Voltage Transformer)

VD: high voltage display device (Voltage Detector)

LA: lightning arrester (Lightning Arrester)

CHd: cable termination (Cable Termination)

In Fig. 1, line side should meet interval outlet requirement, meet again the requirement of docking with single-phase VT, also to meet the Phase-Sequence Transformation requirement, need similar three T-shaped outlet buses, and the GIS equipment of 126kV electric pressure is three-phase combined type equipment, bring very large difficulty to the design work of T-shaped structure common box bus.

The utility model content

The purpose of this utility model is to provide the T-shaped commutation common box bus with three outlets on a kind of GIS of being exclusively used in three-phase combined type equipment.

For achieving the above object, a kind of T-shaped commutation common box bus of the present utility model, the main cylinder that comprises an end shutoff, the relative both sides of main cylinder vertically are provided with first cylindrical shell and second cylindrical shell be interconnected, be provided with the first conductor in described main cylinder, the second conductor and the 3rd conductor, be provided with the 4th conductor be connected with single-phase VT in first cylindrical shell, be provided with the 5th conductor in second cylindrical shell, the 6th conductor and the 7th conductor, the 5th conductor vertically is located between the first conductor and the second conductor, the 3rd conductor is connected with the 5th conductor, the first conductor is connected with the 7th conductor, the second conductor is connected with the 6th conductor, the 4th conductor is connected with the 7th conductor.

Described the 4th conductor is positioned at first cylindrical shell central authorities, and the 7th conductor the inner is connected with homoaxial the 8th conductor, and the 8th conductor dbus is crossed the 9th conductor and is connected with the inner of the 4th conductor.

The both end sides section of described main cylinder is provided with respectively a valve port.

The outer end of described the first conductor, the second conductor, the 3rd conductor, the 5th conductor, the 6th conductor and the 7th conductor is equipped with contact, fingertip plug-in connection.

Described the first conductor, the 7th conductor and the 4th conductor are the A phase, and the second conductor is the B phase with the 6th conductor, and the 3rd conductor is the C phase with the 5th conductor.

Adopt technique scheme, the utility model is reasonable in design, simple in structure, and it had both met the requirement of product docking phase sequence on the basis of minimizing cost, and can meet again the requirement of docking with single-phase VT, practical, is easy to apply.

The accompanying drawing explanation

Fig. 1 is interval arrangements of components form schematic diagram in GIS;

Fig. 2 is structural representation of the present utility model;

The vertical view that Fig. 3 is the first conductor, the second conductor and the 5th conductor;

Fig. 4 is D-D view in Fig. 2;

Fig. 5 is E-E view in Fig. 3;

Fig. 6 is engineering example figure of the present utility model;

Fig. 7 be in Fig. 2 W to view;

Fig. 8 be in Fig. 2 U to view;

Fig. 9 is V-V view in Fig. 2.

Embodiment

As shown in Fig. 2～Fig. 9, a kind of T-shaped commutation common box bus of the present utility model, the main cylinder 1 that comprises an end shutoff, the relative both sides of main cylinder 1 vertically are provided with first cylindrical shell 2 and second cylindrical shell 3 be interconnected, be provided with the first conductor 4 in described main cylinder 1, the second conductor 5 and the 3rd conductor 6, be provided with the 4th conductor 7 be connected with single-phase VT in first cylindrical shell 2, be provided with the 5th conductor 8 in second cylindrical shell 3, the 6th conductor 9 and the 7th conductor 10, the 5th conductor 8 vertically is located between the first conductor 4 and the second conductor 5, the 3rd conductor 6 is connected with the 5th conductor 8, the first conductor 4 is connected with the 7th conductor 10, the second conductor 5 is connected with the 6th conductor 9, the 4th conductor 7 is connected with the 7th conductor 10.

The 4th conductor 7 is positioned at first cylindrical shell 2 central authorities, and the 7th conductor 10 the inners are connected with homoaxial the 8th conductor 11, the eight conductors 11 and are connected with the inner of the 4th conductor 7 by the 9th conductor 12.

The both end sides section of main cylinder 1 is provided with respectively a valve port 13.

The outer end of the first conductor 4, the second conductor 5, the 3rd conductor 6, the 5th conductor 8, the 6th conductor 9 and the 7th conductor 10 is equipped with contact, fingertip plug-in connection 14.

The first conductor 4, the 7th conductor 10 and the 4th conductor 7 are the A phase, and the second conductor 5 is the B phase with the 6th conductor 9, and the 3rd conductor 6 is the C phase with the 5th conductor 8.

The outlet of first cylindrical shell 2 and single-phase VT docking, require the 4th conductor 7 to be positioned at the center of first cylindrical shell 2, the phase sequence of main cylinder 1 left end outlet and second cylindrical shell 3 outlet need meet product docking requirement, its phase sequence is respectively as shown in Fig. 7 and Fig. 9, and cover plate 15 shutoff are used in main cylinder 1 right-hand member outlet.

For meeting phase sequence requirement shown in Fig. 7 and Fig. 9, and do not increase the bus diameter of the housing as far as possible, reduce costs, in conjunction with Fig. 2, Fig. 3, Fig. 4, form a circular hole between the first conductor 4 and the second conductor 5, utilize the first conductor 4, the second conductor 5, the 5th conductor 8 carries out space and passes through, the 5th conductor 8 advances from the first conductor 4, in the middle of the second conductor 5, pass, the 5th conductor 8 reduced now, and approach the 5th conductor 8 places excavations semicircles most on the first conductor 4 and the second conductor 5, thereby perfection is passed through, both met the insulation of high-tension apparatus space, space electric field needs, meet again mechanical strength, conductor ampacity needs, the commutation needs of T-shaped structure bus have been guaranteed on the whole, referring to the first conductor 4 in Fig. 3, the second conductor 5, the profile of the 5th conductor 8, in conjunction with Fig. 2, shown in Fig. 4 referring to the first conductor 4, the second conductor 5, the relative position relation of the 5th conductor 8.

Because single-phase VT is the A phase, and requiring the 4th conductor 7 to be positioned at first cylindrical shell 2 center docks to facilitate with single-phase VT, obviously can find out in Fig. 2 and be positioned at the 7th conductor 10 that A goes up mutually not at first cylindrical shell 2 center, therefore utilize the 8th conductor 11, the 9th conductor 12 carries out transition, finally make the 4th conductor 7 be positioned at first cylindrical shell 2 center, in this process, need be careful the 8th conductor 11, the 9th conductor 12, space insulation between first cylindrical shell 2, electric field needs, to prevent punch-through, can be in conjunction with Fig. 2, Fig. 5 is referring to the 8th conductor 11, the 9th conductor 12, the 4th conductor 7, the 7th conductor 10, relative position relation between first cylindrical shell 2.

In addition, the sidepiece at main cylinder 1 two ends in Fig. 7 and Fig. 8 is respectively equipped with valve port 13, and one of them valve port 13 gives T-shaped structure common box bus inflation/deflation very convenient, uses another valve port 13 to realize that by pipe arrangement gas is communicated with single-phase VT, very convenient.

Certainly, the outer end of the first conductor 4 of the present utility model, the second conductor 5, the 3rd conductor 6, the 5th conductor 8, the 6th conductor 9 and the 7th conductor 10 is equipped with contact, fingertip plug-in connection 14, give T-shaped structure common box bus installation, disassemble and bring convenience, can be referring to Fig. 2.

As shown in Figure 6, upper end outlet order phase VT of the present utility model, single-phase VT is positioned at the center that T-shaped bus exports above, requires the bonding conductor be connected with single-phase VT in T-shaped structure common box bus also to be positioned at center to facilitate docking; CHd is drawn in the left end outlet, and below outlet is connected with DS/ES, and left end outlet and following outlet will meet the phase sequence requirement of product docking, and the right-hand member outlet adopts cover plate 15 shutoff.

Certainly, shown in Fig. 2 and Fig. 6, be provided with two valve ports 13 in T-shaped structure bus and facilitate inflation/deflation, pipe arrangement etc., many places are provided with that sealing ring is sealed in case leak-stopping gas, take contact, fingertip plug-in connection 14 facilitating installation, disassemble etc., very convenient in the engineering application.

In Fig. 6, use T-shaped structure common box bus to be applicable to rated current 2000A, and change housing and the conductor material of T-shaped structure bus, applicable to rated current 3150A, perhaps change housing and the conductor size of T-shaped structure bus, also can on T-shaped structure bus, set up the structures such as adsorbent or rupture pressure disc, make the application of T-shaped structure bus more extensive.

Claims

1. a T-shaped commutation common box bus, the main cylinder that comprises an end shutoff, the relative both sides of main cylinder vertically are provided with first cylindrical shell and second cylindrical shell be interconnected, it is characterized in that: be provided with the first conductor in described main cylinder, the second conductor and the 3rd conductor, be provided with the 4th conductor be connected with single-phase VT in first cylindrical shell, be provided with the 5th conductor in second cylindrical shell, the 6th conductor and the 7th conductor, the 5th conductor vertically is located between the first conductor and the second conductor, the 3rd conductor is connected with the 5th conductor, the first conductor is connected with the 7th conductor, the second conductor is connected with the 6th conductor, the 4th conductor is connected with the 7th conductor.

2. a kind of T-shaped commutation common box bus according to claim 1, it is characterized in that: described the 4th conductor is positioned at first cylindrical shell central authorities, the 7th conductor the inner is connected with homoaxial the 8th conductor, and the 8th conductor dbus is crossed the 9th conductor and is connected with the inner of the 4th conductor.

3. a kind of T-shaped commutation common box bus according to claim 1 and 2, it is characterized in that: the both end sides section of described main cylinder is provided with respectively a valve port.

4. a kind of T-shaped commutation common box bus according to claim 1 and 2, it is characterized in that: the outer end of described the first conductor, the second conductor, the 3rd conductor, the 5th conductor, the 6th conductor and the 7th conductor is equipped with contact, fingertip plug-in connection.

5. a kind of T-shaped commutation common box bus according to claim 1 and 2, it is characterized in that: described the first conductor, the 7th conductor and the 4th conductor are the A phase, and the second conductor is the B phase with the 6th conductor, and the 3rd conductor is the C phase with the 5th conductor.