CN203289033U

CN203289033U - Bus through-wall structure

Info

Publication number: CN203289033U
Application number: CN2013202879601U
Authority: CN
Inventors: 庞文魁; 胡洋洋
Original assignee: TIANJIN FANGYUAN ELECTRIC EQUIPMENT CO Ltd
Current assignee: TIANJIN FANGYUAN ELECTRIC EQUIPMENT CO Ltd
Priority date: 2013-05-24
Filing date: 2013-05-24
Publication date: 2013-11-13
Anticipated expiration: 2023-05-24

Abstract

The utility model aims at providing a problem of providing a novel bus through-wall structure. The employed technical scheme is characterized in that the through-wall structure comprises a wall surface, a bus and a plurality of aluminium plates; and a plurality of threading holes are arranged at the centers of the aluminium plates. And a penetrating channel is arranged at the wall surface; and the aluminium plates are arranged at two sides of the channel. The provided through-wall structure has the following beneficial effects: the structure has the advantages of simple construction, simple maintenance, and low cost; and no direct contact between the bus and the wall surface exists, so that possibility of electricity leakage is avoided.

Description

Bus structure through walls

Technical field

The utility model relates to electric power supporting technology field, relates in particular to a kind of bus structure through walls.

Background technology

Along with the fast development of China's economy, electricity needs is increasing, and the transforming plant main transformer capacity is also increasing, and the situation of 10KV low-pressure side electric current ﹥ 2500A is to the utmost is common.Select equipment safe and reliable, that comprehensive benefit is high, ampacity is large to become one of Substation Design and the frequent content considered of run unit in transformer station.

All insulation shielding copper pipe bus is the novel product of the alternative traditional rectangular bus that occurs this year, bus-bars conductor adopts high-quality non-oxidation copper, impedance is little, surface area is large, and its surfaces externally and internally electric current distribution is even, because conductor is hollow, manage interior and the outer self-assembling formation cross-ventilation of pipe, good heat dissipation, temperature rise is low, and the dynamic and thermal stability performance is better than traditional rectangular bus bar greatly.In it, external insulation adopts the equal laminated structure of multi-layer capacity screen, and the main insulating layer material adopts the teflon oriented film of high-quality, and this material dielectric loss is little, flame-proof anti-aging, and electric property is excellent, and the theoretical work temperature is-250 ℃-+250 ℃, its useful life 〉=30 year.All insulation shielding copper pipe bus dielectric strength is high, the outer surface current potential is zero, can prevent effectively that the person from getting an electric shock or, because metal object, conduction are floating, toy contact and causes phase fault with bus, prevent that effectively dust gathers bus or specific condition causes insulation level decline to form " pollution flashover " because conducting electricity.

Compare with the traditional rectangular bus, the spaced apart of all insulation shielding copper pipe bus also can be dwindled greatly with the safe distance of miscellaneous equipment, and the bus mechanical strength is high, and span is large, can be directly and the equipment connections such as switch cubicle, reactor, and saving transformer station land area.

All insulation shielding copper pipe bus layout structure is succinct, and installation is convenient, and electric property is excellent, and is safe and reliable to operation, reduced the maintenance workload of run unit, and comprehensive benefit is remarkable.

The advantage of all insulation shielding copper pipe bus: 1. ampacity is large, and copper pipe bus is hollow conductor, and surface area is large, and Electric Field Distribution is even; 2. kelvin effect is low, and power loss is little, insulation copper pipe bus skin effect coefficient low (KF＜=1), and AC resistance is little, can fall the loss of bus power; 3. radiating condition is good, and temperature rise is low, and copper pipe bus is hollow conductor, and radiating condition is good, bus internal diameter air channel energy self-assembling formation cross-ventilation (in pipe with outside pipe, air pressure difference being arranged); 4. allowable stress is large, and mechanical strength is high, and the allowable stress of copper pipe bus is 4 times of rectangular bus bar, the short circuit current that performance load can be born is large, and mechanical strength is high, makes bus support span and strengthens, reduced corresponding post insulator, bus gold utensil and civil engineering framework foundation area; 5. electrical insulation properties is strong, and the insulation copper pipe bus adopts multi-layer sealed shielding insulation mode, the earthing of casing, and current potential is zero.Make Electric Field Distribution even, control current potential and restriction electric field; Avoid producing partial discharge at insulating surface, conduction Leakage Current and charging current, to characteristics such as the touch voltage of danger protect; 6. insulation copper pipe bus insulating material temperature used answers coefficient large, and the main insulation material adapts to works in-250 ℃～+ 250 ℃, good electric property and chemical stability are arranged, and dielectric loss is little, and is fire-retardant, ageing-resistant, long service life; 7. anti-electrical equipment shaking force is strong, directly copper pipe bus is fixed on steel framework or concrete support, cancels wall bushing and post insulator, has stronger shock resistance; 8. be not subjected to environmental interference, reliability is high, the sealing of insulation copper pipe bus shield, inside produces and has eliminated extraneous moisture without condensation, the caused ground connection of dust and foreign object and phase fault, and operation has the reliability of height, on year-on-year basis, rectangular bus bar is exposed in environment, accidentally contacted by people, animal and other things and ground connection and short circuit occur, and is unfavorable for safe operation.

During bus 2 pass through wall surface 1 of the prior art, many as shown in Figure 1 this mode constructional difficulties, easily destroy wall body structure by wall bushings 3, in case and the breakdown maintenance very inconvenience of getting up.

The utility model content

Problem to be solved in the utility model is: provide a kind of novel bus structure through walls.

The technical solution of the utility model is as follows: a kind of bus structure through walls, comprise metope and bus, and it is characterized in that: also comprise some aluminium sheets, described aluminium sheet center is provided with some through wires holes; Described metope is provided with the passage that runs through, and described aluminium sheet is positioned at the passage both sides.

Further, the diameter of described through wires hole and bus external diameter are complementary.

Further, described aluminium sheet and passage are complementary.

The beneficial effects of the utility model are: by the utility model bus structure through walls, construction is simple, safeguards simply, with low cost,, without directly contacting, has avoided the possibility of leaking electricity between bus and metope.

Description of drawings

Fig. 1 is the structural representation that partly cuts open of the prior art.

Fig. 2 is the structural representation that partly cuts open of the present utility model.

Fig. 3 is the left view of Fig. 2.

Wherein: 1, metope, 2, bus,

3, wall bushing, 4, aluminium sheet,

5, through wires hole.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is made brief description.

As shown in Figure 2 and Figure 3, a kind of bus structure through walls, comprise metope 1 and bus 2, also comprises some aluminium sheets 4, and described aluminium sheet 4 centers are provided with some through wires holes 5; Described metope 1 is provided with the passage (unmarked in figure) that runs through, and described aluminium sheet 4 is arranged in passage (figure is unmarked) both sides.The diameter of described through wires hole 5 and bus 2 external diameters are complementary, and described aluminium sheet 4 is complementary with passage (unmarked in figure).

Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., within all should still belonging to patent covering scope of the present utility model.

Claims

1. a bus structure through walls, comprise metope (1) and bus (2), it is characterized in that: also comprise some aluminium sheets (4), described aluminium sheet (4) center is provided with some through wires holes (5); Described metope (1) is provided with the passage that runs through, and described aluminium sheet (4) is positioned at the passage both sides.

2. bus structure through walls according to claim 1, it is characterized in that: the diameter of described through wires hole (5) and bus (2) external diameter are complementary.

3. bus structure through walls according to claim 1, it is characterized in that: described aluminium sheet (4) is complementary with passage.