CN202094566U

CN202094566U - Bus slot

Info

Publication number: CN202094566U
Application number: CN2011201970670U
Authority: CN
Inventors: 仲明振; 崔静; 段毅; 王阳; 韩东明; 王沙
Original assignee: TIANJIN TIANZHUAN ELECTRIC CONTROL POWER DISTRIBUTION CO Ltd; Tianjin Electric Transmission Design And Research Institute
Current assignee: TIANJIN TIANZHUAN ELECTRIC CONTROL POWER DISTRIBUTION CO Ltd; Tianjin Electric Transmission Design And Research Institute
Priority date: 2011-06-13
Filing date: 2011-06-13
Publication date: 2011-12-28
Anticipated expiration: 2021-06-13

Abstract

The utility model relates to a bus slot, which comprises aluminium magnesium alloy side plates at two sides, a box body structure by an upper aluminium magnesium alloy cover plate and a lower aluminium magnesium alloy cover plate, and buses arranged in the box body, wherein the buses are uniformly arranged between an upper insulation bracket and a lower insulation bracket at intervals, the buses are copper aluminium composite buses, the outer layer of each bus is copper, the inner core of each bus is aluminium, the section of the outer layer of copper is 20% of the whole section of each bus, and an insulation layer is arranged outside each copper aliuminium composite bus. The bus slot disclosed by the utility model has a simple structure, low impedance, low dropout, low energy consumption, low cost and high use reliability; a temperature monitoring system and a leakage monitoring system are arranged on the bus slot, so that the temperature of the leakage of the power supply line of the bus slot during the operation can be automatically detected, when the temperature and the leakage are over the limit, the alarming is carried out, further, the safety of a power supply system can be ensured, and thus, the bus slot is an intelligent low-cost energy-saving bus slot, and has wide application prospect.

Description

A kind of bus duct

Technical field

The utility model belongs to the controller switching equipment of power domain, relates to bus duct, especially a kind of bus duct.

Background technology

China's electric power industry development is rapid, driven increasing substantially of copper demand, the copper conductor cost accounts for more than 70% of total cost in bus duct, and the copper material price went up more than 4 times in recent years, bring immense pressure for bus duct manufacturing enterprise, force enterprise to have to reduce cross-sectional area of conductor and deal with, not only reduced the security performance of bus duct thus, and increased energy consumption.The rich aluminium of the poor copper of China, copper aluminium composite conductor fundamental performance parameter is near copper conductor, but cost reduces more than 40%, make bus duct with copper aluminium composite conductor, not only can significantly reduce cost, and can alleviate the dependence of bus duct to copper material in short supply, and use the lower cost increasing section, obtain bigger energy-saving effect.

In addition, existing bus duct does not have monitoring temperature and electric leakage monitoring function, thereby is difficult to prevent Yin Wendu to uprise and causes ageing of insulation, causes the accident of short circuit, and prevention causes electrical fire because of electric leakage.

By retrieval, do not find the patent documentation relevant as yet with present patent application.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art part, and a kind of bus duct of performance index excellence with low cost, various is provided.

The purpose of this utility model is achieved in that

A kind of bus duct, constitute by the almag side plate of both sides, the bus installed in the formed body structure of almag cover plate and the casing up and down, the uniform interval of bus is installed between the upper and lower insulating support, it is characterized in that: described bus is the copper aluminium composite bus, its skin is a copper, inner core is an aluminium, and outer copper cross section accounts for 20% of whole cross section, and this copper aluminium composite bus has one deck insulating barrier outward; The uniform interval of described copper aluminium composite bus is installed between the upper and lower insulating support, press-fits a keeper plate of steel outside insulating support, and copper aluminium composite bus, insulating support and keeper plate of steel adopt fastening bolt and almag side plate to be solidly installed mutually.

And, the installation of described almag side plate and almag cover plate adopts non-bolt to install, promptly all be shaped on groove at the two ends of almag side plate, almag cover plate lower edge is shaped on chimb, chimb on the cover plate sticks in the side plate groove, simultaneously, a jump ring is installed on the fastening bolt of fastening copper aluminium composite bus, by the elastic force chucking almag cover plate of two ends jump ring.

And, be laid with the dentation fin on the described almag side plate.

And, one group of temperature sensor is installed on the insulating support of bus duct junction, the temperature indicator of this temperature sensor is installed on the almag cover plate.

And the leading-out terminal of switch is equipped with a residual current transformer in the jack box of bus duct.

And the outer insulating barrier of described copper aluminium composite bus is the PET polyester film.

Advantage of the present utility model and good effect are:

1, this bus duct is done bus with copper aluminium composite conductor, skin is a copper, and its antioxygenic property is strong, and contact resistance is little, identical with copper conductor, inner core is aluminium, and is in light weight, and cost is low, outer copper cross section accounts for 20% of whole cross section, reach the optimality price ratio, and because the effect of kelvin effect, the ampacity of copper aluminium composite conductor is near the T2 copper bar.

2, the almag shell of this bus duct by left side plate and up and down cover plate form, side plate is provided with the dentation fin, two ends are provided with triangular groove, these designs have increased area of dissipation, improved ampacity, also strengthened shell rigidity, triangular groove is convenient to trip bus duct be installed simultaneously.

3, this bus duct is provided with groove on the side plate of both sides, and cover plate is provided with chimb, and the side plate upper groove is advanced in cover plate epirelief checkpost, simultaneously, tightens jump ring at bolt, and leans on the elastic force of jump ring, realizes that non-bolt connects, and good looking appearance has also improved the shell protection grade.

4, on the insulating support of this bus duct temperature detection sensor is housed, temperature indicator is housed on the cover plate, temperature sensor is connected on the temperature indicator with special wire, forms temperature monitoring system, in real time temperature on the supervision conductor; And, the residual current transducer is equipped with in the switch outlet in busway inserting case, leakage current on can detection line, delivering to watch-dog monitors in real time, realize monitoring temperature and electric leakage monitoring, can prevent Yin Wendu to uprise the accident that causes ageing of insulation and cause short circuit, also can prevent to cause electrical fire because of electric leakage.

5, the utility model is simple in structure, Low ESR, low pressure drop, low energy consumption, low cost, the dependability height, can detect operating temperature of bus duct and leakage current automatically, and overload alarm, guaranteeing the safety of electric power system, is a kind of bus duct of intelligent low-cost energy-saving, is with a wide range of applications.

Description of drawings

Fig. 1 is a front view of the present utility model (partly cuing open);

Fig. 2 is the A bilge construction enlarged diagram of Fig. 1;

Fig. 3 is a perspective view of the present utility model;

Fig. 4 is the stereochemical structure enlarged diagram of the utility model cross-over block;

Fig. 5 is a jack box panel front view of the present utility model.

Embodiment

Be described in detail embodiment of the present utility model below in conjunction with accompanying drawing; Need to prove that present embodiment is narrative, is not determinate, can not limit protection range of the present utility model with this.

A kind of bus duct, its structure such as Fig. 1, Fig. 3 are made of the almag side plate 8 of both sides, the copper aluminium composite bus 4 installed in almag cover plate 1 formed body structure and the casing up and down, copper aluminium composite bus skin is a copper, inner core is an aluminium, adopts the preparation of solid-liquid fusion process, copper aluminium interface bond strength height, outer copper cross section accounts for 20% of whole cross section, this composite construction makes whole bus antioxygenic property strong, and contact resistance is little, and is in light weight, cost is low, and ampacity is near the T2 copper bar.The copper aluminium composite bus has one deck insulating barrier 5 outward, this insulating barrier adopts the manufacturing of PET polyester film, its effect is a phase insulation, the uniform interval of copper aluminium composite bus is installed between the upper and lower insulating support 3, press-fit a keeper plate of steel 2 outside insulating support, copper aluminium composite bus, insulating support and keeper plate of steel adopt fastening bolt 6 and almag side plate to be solidly installed mutually.

Be laid with dentation fin 9 on the almag side plate, so that heat radiation; The installation of almag side plate almag cover plate adopts non-bolt to install, promptly all be shaped on groove 11 at the two ends of almag side plate, referring to Fig. 2, almag cover plate lower edge is shaped on chimb 10, and the chimb on the cover plate sticks into the side plate groove, simultaneously, one jump ring 7 is installed on the fastening bolt of fastening copper aluminium composite bus, by the elastic force chucking almag cover plate of jump ring, not only good looking appearance has also improved the shell protection grade.One group of temperature sensor (not shown) is installed in insulating support,, temperature indicator 12 is installed on the almag cover plate referring to Fig. 3.Temperature sensor is connected on the temperature indicator with special wire, forms temperature monitoring system, with temperature on the real-time supervision conductor

The leading-out terminal of the switch 13 of busway inserting case 14 is equipped with residual current transformer 15, with automatic detection supply line leakage current in service, and overload alarm, the safety of assurance electric power system.

Claims

1. bus duct, constitute by the almag side plate of both sides, the bus installed in the formed body structure of almag cover plate and the casing up and down, the uniform interval of bus is installed between the upper and lower insulating support, it is characterized in that: described bus is the copper aluminium composite bus, its skin is a copper, inner core is an aluminium, and outer copper cross section accounts for 20% of whole cross section, and this copper aluminium composite bus has one deck insulating barrier outward; The uniform interval of described copper aluminium composite bus is installed between the upper and lower insulating support, press-fits a keeper plate of steel outside insulating support, and copper aluminium composite bus, insulating support and keeper plate of steel adopt fastening bolt and almag side plate to be solidly installed mutually.

2. bus duct according to claim 1, it is characterized in that: the installation of described almag side plate and almag cover plate adopts non-bolt to install, promptly all be shaped on groove at the two ends of almag side plate, almag cover plate lower edge is shaped on chimb, chimb on the cover plate sticks in the side plate groove, simultaneously, a jump ring is installed on the fastening bolt of fastening copper aluminium composite bus, by the elastic force chucking almag cover plate of two ends jump ring.

3. bus duct according to claim 2 is characterized in that: be laid with the dentation fin on the described almag side plate.

4. bus duct according to claim 1 is characterized in that: one group of temperature sensor is installed on the insulating support of bus duct junction, and the temperature indicator of this temperature sensor is installed on the almag cover plate.

5. bus duct according to claim 1 is characterized in that: the leading-out terminal of switch is equipped with a residual current transformer in the jack box of bus duct.

6. bus duct according to claim 1 is characterized in that: the outer insulating barrier of described copper aluminium composite bus is the PET polyester film.