CN202285317U

CN202285317U - Three-phase nonsegregated insulation sealed pipe type bus

Info

Publication number: CN202285317U
Application number: CN2011203994769U
Authority: CN
Inventors: 周锦平; 程坤; 尹建明
Original assignee: HUBEI XINGHE NEW MATERIAL CO Ltd
Current assignee: HUBEI XINGHE NEW MATERIAL CO Ltd
Priority date: 2011-10-19
Filing date: 2011-10-19
Publication date: 2012-06-27
Anticipated expiration: 2021-10-19

Abstract

The utility model relates to a three-phase nonsegregated insulation sealed pipe type bus. The lower end of a strut insulator is fixedly arranged on a base arranged in a metal casing through a screw rod, the upper end of the strut insulator is connected with a lower body of a fixing hardware through a screw rod, a tubular bus covered with an insulation sheath pipe is fixed through the fixing hardware, the fixing hardware consists of an upper body of the fixing hardware and the lower body of the fixing hardware, the upper part of the metal casing is provided with a maintenance overhaul window, the two sides and the bottom of the metal casing are provided with blind windows, the outer surface is sprayed and coated with light gray paint, the inner surface is sprayed and coated with black lackluster paint, and the tubular bus is safely protected and grounded by using a sealed metal casing. The three-phase nonsegregated insulation sealed pipe type bus adopts a copper pipe or an aluminum pipe type bus, the conductor current carrying capability can be increased, the conductor skin effect factor is reduced, the conductor eddy current and the electric energy consumption are reduced, the three-phase nonsegregated insulation sealed pipe type bus per se is bendable, the contact resistance at the bending part and the corona discharge phenomenon are reduced, a large support space can be adopted, the installation cost is low, the insulation sheath is used for protection outside the bus, the stain resistance capability and the creepage distance are improved, and the operation safety and the reliability of the bus can be improved.

Description

Three-phase combined type insulator seal stopped pipe type bus

Technical field

The utility model relates to the power transmission and distribution field, is specifically related to a kind of three-phase combined type insulator seal stopped pipe type bus.

Background technology

Existing case enclosed busbar altogether adopts rectangle busbar (copper bar or aluminium row) and insulator to support, and relies on metal shell to protect and ground connection.Because the cross section of single, rectangular piece busbar is limited; The modes that adopt the stack of multi-disc busbar under big current conditions are running into the connected mode that bending section must adopt the stack of busbar right angle more, and linkage section need use independent connecting plate and bolt to connect; Receive its structural limitations, mainly have following problem:

1, multi-disc rectangle busbar skin effect coefficient is big, and eddy current increases in the conductor, and the conductor heating is serious, causes electric energy loss to increase;

2, multi-disc stack busbar is a solid conductor, and radiating condition is poor, and when work, the temperature rise of rectangle busbar causes current capacity to descend, and ampacity is little, can not satisfy the application under the big current applications;

3, bending section busbar stack place contact resistance is big, causes the conductor heating to increase, and electric energy loss increases; And bending section is the right angle, has wedge angle, causes corona discharge to increase;

4, rectangle busbar intensity is low, and it is little that support interval is installed, and requires 4m at least, and mounting material consumption is big, and installation cost is high;

5, rectangle busbar Short Circuit withstand electric power is poor, and security reliability is low, and maintainability is poor.

Summary of the invention

The purpose of the utility model is to above-mentioned present situation, aims to provide a kind of conductor ampacity that increases, and reduces the conductor skin effect coefficient, reduces the conductor eddy current, reduces electric energy loss; Can reduce conductor contact resistance and corona discharge phenomenon; Improve the durability against pollution and the creepage distance of bus; The three-phase combined type insulator seal stopped pipe type bus that installation cost is low.

The implementation of the utility model purpose does; Three-phase combined type insulator seal stopped pipe type bus; The post insulator lower end is fixed on the base in the metal shell through screw rod, and the upper end is connected with fixing gold utensil lower body through screw rod, and the tube type bus that is coated with the insulating sleeve pipe is fixed through fixing gold utensil; Fixedly gold utensil by fixing gold utensil upper body and fixedly the gold utensil lower body constitute, last lower body is fixed as one by bolt.

The utility model has following advantage:

1, adopts tube type bus (copper pipe or aluminum pipe) to substitute the rectangle busbar and make enclosed busbar system current, can increase the conductor ampacity, reduce the conductor skin effect coefficient, reduce the conductor eddy current, reduce electric energy loss;

2, the tube type bus crooked position can be realized self bending with bending machine, can reduce conductor contact resistance and corona discharge phenomenon;

3, tube type bus adopts the insulating sleeve protection outward, improves the durability against pollution and the creepage distance of bus;

4, tube type bus intensity is high, and the Short Circuit withstand electric power is strong, can adopt bigger support interval, and installing space can reduce installation accessories greater than 6m, improves installation effectiveness, reduces installation cost;

5, tube type bus utilizes security protection of closed metal housing and ground connection.

The utility model can improve bus property safe and reliable to operation; Be mainly used in that transformer is paramount to be press-fitted being electrically connected between the electric screen; Supply line in the electric power system of inside plants and the factory between power distribution cabinet to the big electric current power consumption equipment connects being electrically connected between power plant generator and the transformer.

Description of drawings

Fig. 1 is the utility model sealing cast bus-bar system crooked position internal structure sketch map,

Fig. 2 is the utility model sealing cast bus-bar system end face structure sketch map,

Fig. 3 is the utility model sealing cast bus-bar system overall structure sketch map.

Embodiment

The utility model is by metal shell, fixedly gold utensil, tube type bus, post insulator, insulating sleeve pipe and mounting seat constitute.

The utility model is detailed with reference to the accompanying drawings.

With reference to Fig. 1, Fig. 2; Post insulator 5 lower ends are fixed on above the base 6 in the metal shell 1 through screw rod; The upper end is connected with fixing gold utensil lower body 4 through screw rod; The tube type bus 3 that is coated with insulating sleeve pipe 7 is fixed through fixing gold utensil, and tube type bus 3 is outer to adopt 7 protection of insulating sleeve pipes, improves the durability against pollution and the creepage distances of bus.Fixedly gold utensil by fixing gold utensil upper body and fixedly the gold utensil lower body constitute, last lower body is fixed as one by bolt.

Tube type bus 3 is copper pipe or aluminum tube bus, and intensity is high, and the Short Circuit withstand electric power is strong, can adopt bigger support interval, and installing space can reduce installation accessories greater than 6m, improves installation effectiveness, reduces installation cost.

The tube type bus crooked position can be realized self bending with bending machine, can reduce conductor contact resistance and corona discharge phenomenon.

With reference to Fig. 3, a plurality of Maintenance and Repair windows 8 are opened on metal shell 1 top, and a plurality of blind windows 9 are driven in both sides and bottom.So that the oozing out of ventilation and convection current and a spot of rainwater and condensed water in the enclosed busbar.

Adopt the utility model, tube type bus is fixed on the post insulator 5 through fixing gold utensil, and post insulator is fixed on above the interior base 6 of metal shell 1 through screw rod.The metal shell two ends make adpting flange, and tube type bus utilizes the closed metal housing to reach security protection and ground connection., reduce to strengthen reflecting effect at the light grey paint of metal shell outer surface spraying absorption of visible light; To strengthen the absorption of box house heat, be convenient to conduction at the matt paint of metal shell inner surface spray black, utilize the thermal radiation of shell externally to dispel the heat, effectively prevent that conductor from producing corona phenomenon simultaneously shell.

Claims

1. three-phase combined type insulator seal stopped pipe type bus; It is characterized in that the post insulator lower end is fixed on the base in the metal shell through screw rod; The upper end is connected with fixing gold utensil lower body through screw rod; The tube type bus that is coated with the insulating sleeve pipe is fixed through fixing gold utensil, fixedly gold utensil by fixing gold utensil upper body and fixedly the gold utensil lower body constitute, last lower body is fixed as one by bolt.

2. three-phase combined type insulator seal stopped pipe type bus according to claim 1 is characterized in that metal shell (1) top opens a plurality of Maintenance and Repair windows (8), and a plurality of blind windows (9) are driven in both sides and bottom.

3. three-phase combined type insulator seal stopped pipe type bus according to claim 1 is characterized in that tube type bus is copper pipe or aluminum pipe tube type bus.

4. three-phase combined type insulator seal stopped pipe type bus according to claim 1 is characterized in that the light grey paint of metal shell outer surface spraying, the matt paint of metal shell inner surface spray black.