CN209016467U - A kind of switchgear - Google Patents

Abstract

A kind of switchgear, include shell and be located at the intracorporal bus-bar room D of shell；Upper contact head box, the branch bar of main bus-bar, horizontal interval arrangement are provided in the bus-bar room D, the upper connecting pin of the branch bar is electrically connected with main bus-bar, and lower connecting pin is electrically connected with upper contact head box；The branch bar includes the A phase bus, B phase bus, C phase bus set gradually, wherein the center line of the lower connecting pin of the lower connecting pin of B phase bus coincides with the center line of corresponding upper contact head box, feature: the center line of the lower connecting pin of the A phase bus, C phase bus is not overlapped with the center line of corresponding upper contact head box and deviates respectively to the phase bus side B.Guarantee the insulating properties of switchgear and the reliability of electrical connection, it is highly-safe；Interior layout is reasonable, facilitates processing.

Description

A kind of switchgear

Technical field

The utility model belongs to electric switch equipment technical field, and in particular to a kind of switchgear.

Background technique

According to data, 1000 meters of China's height above sea level or more of land area accounts for the 65% of national total area.In addition, China's water Electric resources about 3/4 are in high altitude localities such as southwest, northwests, especially in recent years, the new energy project such as wind-powered electricity generation of highlands It continues to develop and grows, the switchgear that required suitable high altitude localities uses accordingly increases, therefore wants to the running environment of switchgear It asks and is also continuously improved, and with the raising of height above sea level, the reduction of air pressure and atmospheric density, air humidity declines therewith, and empty The dielectric insulation intensity of gas is the reduction with atmospheric density and gradually decreases, to will affect the electrical resistance of electric switch equipment Energy and security reliability, therefore the switchgear of common low altitude area has been unable to satisfy corresponding altitude environment and has required.

Summary of the invention

The task of the utility model is to provide for a kind of reasonable structural arrangement, facilitates the switchgear of processing and manufacturing, guarantees The insulating properties of switchgear and the reliability of electrical connection.

What the task of the utility model was performed by, a kind of switchgear includes shell and intracorporal positioned at shell Bus-bar room D；Upper contact head box, the branch bar of main bus-bar, horizontal interval arrangement, point are provided in the bus-bar room D The upper connecting pin of branch bus is electrically connected with main bus-bar, and lower connecting pin is electrically connected with upper contact head box；The branch bar includes There is the A phase bus, B phase bus, C phase bus set gradually, wherein the center line of the lower connecting pin of B phase bus and corresponding upper touching The center line of head cartridge coincides, the A phase bus, C phase bus lower connecting pin center line and corresponding upper contact head box Center line is not overlapped and deviates respectively to the phase bus side B.

In a specific embodiment of the utility model, further includes having cable vault E, also set in the cable vault E It is equipped with current transformer and earthing switch, the earthing switch is electrically connected with current transformer.

In another specific embodiment of the utility model, it is additionally provided with insulator in the bus-bar room D, it is described Insulator one end fixed setting shell on, the other end is fixed on main bus-bar.

In another specific embodiment of the utility model, it is also equipped in the bus-bar room D for fixed master The bus casing of bus.

It further include having breaker chamber C in another specific embodiment of the utility model, the breaker chamber C It is inside additionally provided with breaker and therewith compatible guide rail, the breaker can be moved forward and backward along guide rail.

In the utility model there are one in specific embodiment, the breaker chamber C, bus-bar room D, cable vault E Top is equipped with pressure relief device.

In a specific embodiment in turn of the utility model, the shell and the intracorporal partition of shell are using deposited Aluminium zinc steel plate splicing forms.

In the utility model more and in a specific embodiment, the main bus-bar and branch bar are all made of rectangle Bus.

The utility model due to by the center line of the lower connecting pin of A phase bus, C phase bus in corresponding upper contact head box Heart line is not overlapped and deviates respectively to the phase bus side B, thus ensure that the insulating properties of switchgear and the reliability of electrical connection, The safety of switchgear is set to be greatly improved；Interior layout is reasonable simultaneously, facilitates processing.

Detailed description of the invention

Fig. 1 is the plane structure chart of an embodiment of the present invention.

Fig. 2 is position view of each phase bus on upper contact head box in branch bar described in the utility model.

In figure: 1. shells；2. breaker, 21. upper contact heads, 211. upper contact head boxes, 22. lower contacts, 221. lower contact boxs；3. Main bus-bar；4. insulator；5. branch bar, 51.A phase bus, 52.B phase bus, 53, C phase bus；6. current transformer；Under 7. Connection row；8. earthing switch；9. guide rail；10. bus casing.

Specific embodiment

Specific embodiment of the present utility model is described in detail with reference to the accompanying drawing, but is not pair to the description of embodiment The limitation of technical solution, any change in the form rather than substance according to the utility model design all should be considered as the utility model Protection scope.

Fig. 1 to Fig. 2 is please referred to, the utility model relates to a kind of switchgear, includes shell 1 and is located in shell 1 simultaneously The multiple compartments being separated by partition and a component being mounted in compartment and secondary component composition.Component It include: current transformer 6, voltage transformer, earthing switch 8, breaker 2, contactor, fuse, transformer, insulating part, master Bus 3 and branch bar 5, high voltage reactor, high-voltage one-phase shunt capacitor etc.；The compartment include secondary meter room B, Breaker chamber C, bus-bar room D, cable vault E are all separated by partition between each compartment, wherein the partition And shell 1 is preferably spliced after numerically-controlled machine tool processing using aluminizing zinc steel plate in the present embodiment, therefore assemble Switchgear is able to maintain the uniformity in size, and Simultaneous Switching cabinet has very strong corrosion resistance and inoxidizability effect, and has Mechanical strength more higher than same steel plate.

Compartment further includes having a small bus-bar room A, and the top of 1 front side of shell, inner is arranged in the small bus-bar room A The mountable several small buses of chamber.The small bus generally comprises the small bus of direct current, the small bus of exchange, small voltage bus, mainly It is sampled for DC equipment, the power supply of alternating current equipment and the measurement of voltage.The breaker chamber C, bus-bar room D, cable vault E Top is equipped with pressure relief device, which directly can commercially obtain, when breaker or bus are sent out When raw inner barrier, with the appearance of electric arc, inside switch cabinet air pressure is increased, and is installed in the special sealing circle on door cabinet front door It seals, the pressure release metal plate of top installation will be automatically switched on, and be released stress and vented gasses, to ensure operator Member and switchgear safety.Guide rail 9 is installed in breaker chamber C, the breaker 2 can be adapted to therewith and then before guide rail 9 After move；The upper contact head box 211 and branch bar 5 of main bus-bar 3, horizontal interval arrangement, institute are provided in the bus-bar room D The upper connecting pin for the branch bar 5 stated is electrically connected with main bus-bar 3, and lower connecting pin is electrically connected with upper contact head box 211；Bus-bar room D In be also equipped with bus casing 10, bus casing 10 passes through switchgear partition for fixing main bus-bar 3 convenient for it；In order to meet The requirement of temperature rise, in the present embodiment, exposed copper busbar is can be used in whole buses.Flat branch bar 5 is bolted to Between upper contact head box 211 and main bus-bar 3, if there is particular/special requirement, the attachment bolt on bus bar can use insulation sleeve or end cap Encapsulation.It is fixed with bus casing 10 when main bus-bar 3 passes through switchgear partition, if there is Internal faults arc, thing can be limited Therefore adjacent cabinet is spread to, and can ensure the mechanical strength of bus.Main bus-bar 3 and branch bar 5 are all made of rectangular bus bar.Cable vault E Inside it is provided with earthing switch 8, lower connection row and current transformer 6.Secondary meter room B is located at the top of 1 front side of cabinet body, for pacifying Fill secondary component.The secondary component includes that comprehensive protector, composite monitoring device, electric vehicle chassis and ground connection are opened Close controller, earthing switch driver, temperature reception module and electricity/power quality acquisition module etc..

Main bus-bar 3, branch bar 5, upper contact head box 211, upper contact head 21, lower contact 22, the lower contact box being sequentially connected in series 221, lower connection row 7, current transformer 6 constitute major loop；The branch bar 5 includes A phase bus 51, the B set gradually Phase bus 52, C phase bus 53, the center line of the lower connecting pin of B phase bus 52 are mutually overlapped with the center line of corresponding upper contact head box 211 Close, the A phase bus 51, C phase bus 53 the center line of lower connecting pin do not weighed with the center line of corresponding upper contact head box 211 Merge and is deviated respectively to 52 side of B phase bus.

Specifically, the center line of the lower connecting pin of the A phase bus 51 is arranged in corresponding 211 center line of upper contact head box Side to the right, corresponding, the inclined of corresponding 211 center line of upper contact head box is arranged in the center line of connecting pin under C phase bus The first from left side.Which increases spacing over the ground, ensure that the insulating properties of switchgear.

In addition to this, in order to meet the environmental requirement on plateau, one end of the insulator 4 is fixed on shell 1, The other end is fixed on main bus-bar 3.

The utility model can increase the length of guide rail 9, to increase the stroke of breaker, increase insulation distance.In addition, The height of insulator 4 can also be increased, increase the skirt of upper contact head box 211, lower contact box 221 and bus casing 10 etc..

Above-mentioned primary, secondary component is all made of plateau type.

Claims (8)

1. The bus-bar room D that 1. a kind of switchgear includes shell (1) and is located in shell (1)；Setting in the bus-bar room D There are upper contact head box (211), the branch bar (5) of main bus-bar (3), horizontal interval arrangement, the upper connection of the branch bar (5) End is electrically connected with main bus-bar (3), and lower connecting pin is electrically connected with upper contact head box (211)；The branch bar (5) include according to A phase bus (51), B phase bus (52), the C phase bus (53) of secondary setting, the wherein center line of the lower connecting pin of B phase bus (52) It coincides with the center line of corresponding upper contact head box (211), it is characterised in that: the A phase bus (51), C phase bus (53) The center line of lower connecting pin be not overlapped with the center line of corresponding upper contact head box (211) and respectively to B phase bus (52) side Offset.
2. 2. a kind of switchgear according to claim 1, it is characterised in that further include having cable vault E, in the cable vault E It is additionally provided with current transformer (6) and earthing switch (8), the earthing switch (8) is electrically connected with current transformer (6).
3. 3. a kind of switchgear according to claim 1, it is characterised in that be additionally provided with insulator in the bus-bar room D (4), in one end fixed setting shell (1) of the insulator (4), the other end is fixed on main bus-bar (3).
4. 4. a kind of switchgear according to claim 1, it is characterised in that be also equipped in the bus-bar room D for fixing The bus casing (10) of main bus-bar (3).
5. 5. a kind of switchgear according to claim 2, it is characterised in that it further include having breaker chamber C, the breaker Breaker (2) and therewith compatible guide rail (9) are additionally provided in the C of room, the breaker (2) can move before and after guide rail (9) It is dynamic.
6. 6. a kind of switchgear according to claim 5, it is characterised in that the breaker chamber C, bus-bar room D, cable vault E Top is equipped with pressure relief device.
7. 7. a kind of switchgear according to claim 1, it is characterised in that in the shell (1) and shell (1) every Plate is formed using aluminizing zinc steel plate splicing.
8. 8. a kind of switchgear according to claim 1, it is characterised in that the main bus-bar (3) and branch bar (5) is equal Using rectangular bus bar.