CN217882431U

CN217882431U - High-voltage power distribution cabinet of double-bus system

Info

Publication number: CN217882431U
Application number: CN202220944395.0U
Authority: CN
Inventors: 陈卫东
Original assignee: Jiangsu Aimhigh Electric Co ltd
Current assignee: Jiangsu Aimhigh Electric Co ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-11-22
Anticipated expiration: 2032-04-22

Abstract

The invention discloses a high-voltage power distribution cabinet with a double-bus system, which comprises a high-voltage power distribution cabinet main body, a relay chamber arranged at the upper part of the high-voltage power distribution cabinet main body, and a breaker chamber arranged below the relay chamber; the high-voltage distribution cabinet comprises a standby space arranged at the bottom of a main body of the high-voltage distribution cabinet, a main bus chamber arranged at the top of the main body of the high-voltage distribution cabinet, an isolating switch chamber arranged below the main bus chamber, a cable chamber arranged below the isolating switch chamber, and a contact box group arranged in the main body of the high-voltage distribution cabinet; the main bus bar compartment includes: the first bus bar chamber and the second bus bar chamber; an isolating switch is installed in the isolating switch chamber; the isolating switch chamber is internally provided with an operating mechanism which comprises a first bus isolating switch operating mechanism and a second bus isolating switch operating mechanism, and the double-bus system high-voltage power distribution cabinet effectively solves the problem that a power supply can not be selected according to the power of each load when the load is unbalanced in the use process.

Description

High-voltage power distribution cabinet of double-bus system

Technical Field

The invention relates to the field of high-voltage power distribution cabinets, in particular to a high-voltage power distribution cabinet with a double-bus system.

Background

Nowadays, with the rapid development of technology, the power consumption is continuously increased, people need to have stronger and stronger operability and more stable performance on power consumption equipment, so that the power supply designed by the high-voltage cabinet is generally supplied by two paths; when the two-path power supply system is used, the condition that the power consumption of the power supply equipment is unbalanced often exists; when only one path of power supply is used, the power supply of the path cannot meet the power requirement of the power grid, and the requirement can be met only when two paths of power supply are used simultaneously. When two paths of power supplies are used simultaneously, the situation that one path of load exceeds the designed power and the other path of load does not reach the designed power often occurs, under the situation, the load on one overloaded side needs to be adjusted to the other side without overload, the two paths of load can not be absolutely balanced in normal design, and therefore the using state of the load power supply can be adjusted at any time to determine the power supply orientation, wherein the power supply orientation is taken from the first path of power supply or the second path of power supply.

Disclosure of Invention

The invention aims to provide a high-voltage power distribution cabinet with a double-bus system to solve the problem that a power supply cannot be selected according to the power of each load when the load is unbalanced in the use process aiming at the defects of the prior art.

The technical scheme for solving the problems comprises the following steps: a high-voltage power distribution cabinet with a double-bus system comprises a high-voltage power distribution cabinet main body, a relay chamber arranged at the upper part of the high-voltage power distribution cabinet main body, and a breaker chamber arranged below the relay chamber; the high-voltage distribution cabinet comprises a spare space arranged at the bottom of a main body of the high-voltage distribution cabinet, a main bus chamber arranged at the top of the main body of the high-voltage distribution cabinet, an isolating switch chamber arranged below the main bus chamber, a cable chamber arranged below the isolating switch chamber, and a contact box group arranged inside the main body of the high-voltage distribution cabinet.

The main bus chamber comprises a first bus chamber and a second bus chamber; the first bus chamber and the second bus chamber are arranged in a front-back mode, the first bus chamber is provided with a first main bus copper bar, and the second bus chamber is provided with a second main bus copper bar. And a bus chamber partition plate is arranged between the first bus chamber and the second bus chamber.

The main bus chamber is provided with an insulator; the insulator comprises a first insulator, a second insulator, a third insulator, a fourth insulator, a fifth insulator and a sixth insulator; the first bus chamber is fixedly provided with a first insulator, a second insulator and a third insulator; the first insulator is fixedly arranged on one side of the bus chamber partition plate; and the second insulator and the third insulator are fixedly arranged on the rear plate of the first bus chamber.

A fourth insulator, a fifth insulator and a sixth insulator are fixedly arranged in the second bus chamber; the fourth insulator is fixedly arranged on the other side of the bus chamber partition plate; and the fifth insulator and the sixth insulator are fixedly arranged on the front plate of the second bus chamber.

An isolating switch is installed in the isolating switch chamber; the isolating switch comprises a first bus isolating switch and a second bus isolating switch. And a connecting copper bar is arranged between the first bus isolating switch and the second bus isolating switch.

And the first bus isolating switch and the second bus isolating switch are both provided with wire inlet pile heads. First bus isolator and first bus isolator all are provided with the inlet wire pile head and all are provided with switch gear.

A partition plate is arranged between the main bus chamber and the isolating switch chamber, a wall bushing group is sleeved on the partition plate, the wall bushing group ensures that the isolating switch chamber and the main bus chamber are relatively independent in space, and the main bus chamber is prevented from breaking down to cause the spreading of accidents. The wall bushing group comprises a first wall bushing group and a second wall bushing group; the first wall bushing group comprises 3 wall bushings, and is arranged between the first bus chamber and the first bus isolating switch. A first bus copper bar is arranged in the first wall bushing group; the second wall bushing group comprises 3 wall bushings and is arranged between the second bus chamber and the second bus isolating switch. And a second bus copper bar is arranged in the second wall bushing group.

The circuit breaker room is provided with the circuit breaker, the contact box group has including setting up in the first contact box group in the isolator room, sets up in the second contact box group in the cable chamber. A contact box is arranged in the contact box group; the first contact box group comprises 3 contact boxes; the second contact box group comprises 3 contact boxes. The contact box is matched with the circuit breaker.

An operating mechanism is arranged in the isolating switch chamber and comprises an operating mechanism main shaft, the operating mechanism is interlocked with the circuit breaker, and an operating mechanism handle is interlocked. The isolating switch operating mechanism comprises a first bus isolating switch operating mechanism and a second bus isolating switch operating mechanism. The first bus isolating switch operating mechanism and the second bus isolating switch operating mechanism are symmetrically arranged.

The first bus isolating switch operating mechanism, the second bus isolating switch operating mechanism and the operating mechanism and circuit breaker interlocking are all fixed on the operating mechanism main shaft, the first bus isolating switch operating mechanism and the second bus isolating switch operating mechanism are closed through rotation of the operating mechanism main shaft, and the operating mechanism and circuit breaker interlocking and operating mechanism handle interlocking are arranged on the front portion of the operating mechanism main shaft.

Preferably, an attachment grounding switch, a lightning arrester and a current transformer are arranged in the cable chamber.

Preferably, the isolation switch chamber is arranged in the middle of the rear part of the main body of the high-voltage power distribution cabinet.

Preferably, the shell frame of the main bus chamber is fixed on the top of the isolating switch chamber.

Preferably, the first bus chamber is installed at the rear top of the high-voltage distribution cabinet, and the second bus chamber is installed at the front side of the first bus chamber.

Preferably, the first insulator and the fourth insulator are respectively fixed to both sides of the bus bar room partition.

Preferably, the first main bus copper bar and the second main bus copper bar are symmetrically distributed, so that the first main bus copper bar and the second main bus copper bar can be conveniently led to the isolating switch chamber, and the isolating switch chamber is convenient to manufacture and overhaul.

Preferably, the bus bar chamber partition is a double-layer steel plate.

Preferably, the isolating switch operating mechanism is a bevel gear mechanism, and the bevel gear mechanism is a half gear and a half disc structure; the bevel gear mechanism includes a gear engagement portion and a disk locking portion.

The high-voltage power distribution cabinet is characterized in that an operating rod is movably connected to the outer portion of the main body of the high-voltage power distribution cabinet, and the operating rod can be inserted into the front end of the main shaft of the operating mechanism.

The invention has the following beneficial effects:

the invention provides a double-bus system high-voltage power distribution cabinet, wherein a first bus chamber and a second bus chamber at the top of the double-bus system high-voltage power distribution cabinet form double-bus configuration, respectively bear two paths of power supplies of a power grid, can quickly reverse the power supply orientation, and freely select a power distribution power supply; change former bus-bar room into two isolator rooms, such degree of depth can satisfy 2 isolator mounted position's requirement, also can satisfy the requirement of the first bus-bar room of top design and second bus-bar room installation space, also does not waste the inside space of switch board simultaneously. The volume is smaller under the condition of meeting the installation space. The switches of 2 isolating switches of the double isolating switch chambers are operated to switch on, switch off and be interlocked by 1 set of operating mechanism.

Drawings

FIG. 1 is a diagram of a separation chamber of a main body of a high-voltage distribution cabinet;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic diagram of the internal structure of the main body of the high voltage distribution cabinet;

fig. 4 is a front view of the present invention;

fig. 5 is a schematic view of the operating mechanism handle interlock.

In the figure: 1-a high voltage distribution cabinet main body 1; 2-a relay chamber; 3-a breaker chamber; 31-a circuit breaker; 4-spare space; 5-main bus chamber; 51-a first busbar compartment; 52-a second busbar compartment; 53-first main busbar copper bar; 54-a second main bus copper bar; 55-bus bar compartment divider; 56-first insulator; 57-a second insulator; 58-a third insulator; 59-a fourth insulator; 510-a fifth insulator; 511-a sixth insulator; 6-isolating the switch chamber; 61-a disconnector; 62-a first bus bar disconnector; 63-a second bus bar disconnector; 64-connecting copper bars; 65-incoming line pile head; 66-a separator; 67-a first set of wall bushing; 68-a second set of wall bushing; 69-wall bushing; 610-a first busbar copper bar; 611-second bus bar copper bar; 7-a cable chamber; 8-contact box group; 81-a first set of contact boxes; 82-a second set of contact boxes; 9-an operating mechanism; 91-operating the mechanism spindle; 92-a first bus bar disconnector operating mechanism; 93-a second bus bar disconnector operating mechanism; 94-the operating mechanism is interlocked with the circuit breaker; 95-operating mechanism handle interlock; 10-a grounding switch; 11-a lightning arrester; 12-current transformer.

Detailed Description

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1-5, a high voltage distribution cabinet with a double bus system comprises a main body 1 of the high voltage distribution cabinet, a relay chamber 2 arranged at the upper part of the main body 1 of the high voltage distribution cabinet, and a breaker chamber 3 arranged below the relay chamber 2; the high-voltage distribution cabinet comprises a standby space 4 arranged at the bottom of a main body 1 of the high-voltage distribution cabinet, a main bus chamber 5 arranged at the top of the main body 1 of the high-voltage distribution cabinet, an isolating switch chamber 6 arranged below the main bus chamber 5, a cable chamber 7 arranged below the isolating switch chamber 6, and a contact box group arranged inside the main body 1 of the high-voltage distribution cabinet. And a grounding switch 10, a lightning arrester 11 and a current transformer 12 are arranged in the cable chamber 7.

The isolation switch chamber 6 is arranged in the rear middle part of the high-voltage power distribution cabinet main body 1; the shell frame of the main bus chamber 5 is fixed on the top of the isolating switch chamber 6.

As shown in fig. 2, the main bus bar compartment 5 includes a first bus bar compartment 51, a second bus bar compartment 52; the first bus bar room 51 and the second bus bar room 52 are arranged in front of and behind each other, preferably, the first bus bar room 51 is installed at the rear top of the high voltage distribution cabinet, and the second bus bar room 52 is installed at the front side of the first bus bar room 51. The first bus bar room 51 and the second bus bar room 52 form a double-bus bar configuration, and respectively bear two power supplies of a power grid. The first bus bar chamber 51 is provided with a first main bus bar copper bar 53, and the second bus bar chamber 52 is provided with a second main bus bar copper bar 54. Preferably, the first main bus copper bar 53 and the second main bus copper bar 54 are symmetrically distributed, so that the first main bus copper bar and the second main bus copper bar can be conveniently led to the isolating switch chamber 6, and the manufacturing and the maintenance are convenient.

A bus chamber partition plate 55 is arranged between the first bus chamber 51 and the second bus chamber 52, and the bus chamber partition plate 55 is a double-layer steel plate.

The main bus chamber 5 is provided with an insulator; the insulators comprise a first insulator 56, a second insulator 57, a third insulator 58, a fourth insulator 59, a fifth insulator 510 and a sixth insulator 511; the first bus bar chamber 51 is fixedly provided with a first insulator 56, a second insulator 57 and a third insulator 58; the first insulator 56 is fixedly arranged on one side of the bus chamber partition plate 55; the second insulator 57 and the third insulator 58 are fixedly arranged on the rear plate of the first bus chamber 51; the first insulator 56, the second insulator 57 and the third insulator 58 are used for fixing and supporting the first main bus copper bar 53.

A fourth insulator 59, a fifth insulator 510 and a sixth insulator 511 are fixedly arranged on the second bus chamber 52; the fourth insulator 59 is fixedly arranged on the other side of the bus chamber partition plate 55; the fifth insulator 510 and the sixth insulator 511 are fixedly disposed on the front plate of the second busbar chamber 52. The fourth insulator 59, the fifth insulator 510 and the sixth insulator 511 are used for fixing and supporting the second main bus copper bar 54. The first insulator 56 and the fourth insulator 59 are fixed to both sides of the bus bar compartment partition 55, respectively.

As shown in fig. 2 to 4, a disconnector 61 is installed in the disconnector chamber 6; the disconnector 61 comprises a first bus disconnector 62 and a second bus disconnector 63. The first bus bar disconnector 62 and the second bus bar disconnector 63 form a set of two-way disconnectors. A connecting copper bar 64 is arranged between the first bus isolating switch 62 and the second bus isolating switch 63. The connecting copper bar 64 is connected with the lower port of the first bus isolating switch 62 and the lower port of the second bus isolating switch 63, so that a group of double-power isolating switches is formed.

The first bus bar isolating switch 62 and the second bus bar isolating switch 63 are both provided with incoming line pile heads 65. The first bus bar isolating switch 62 and the first bus bar isolating switch 62 are both provided with a switch gear.

A partition plate 66 is arranged between the main bus-bar room 5 and the isolating switch room 6, a wall bushing group is sleeved on the partition plate 66, the wall bushing group ensures that the isolating switch room 6 and the main bus-bar room 5 are relatively independent in space, and the main bus-bar room 5 is prevented from spreading accidents caused by faults. The wall bushing set comprises a first wall bushing set 67 and a second wall bushing set 68.

The first wall bushing set 67 includes 3 wall bushings 69, and the first wall bushing set 67 is disposed between the first busbar compartment 51 and the first busbar isolator 62. A first busbar copper bar 610 is arranged in the first wall bushing group 67, and the first busbar copper bar 610 is connected with the first main busbar copper bar 53 and the incoming line pile head 65 of the first busbar isolating switch 62.

The second set of wall bushings 68 comprises 3 wall bushings 69, the second set of wall bushings 68 being arranged between the second busbar compartment 52 and the second busbar disconnector 63. A second bus bar copper bar 611 is arranged in the second wall bushing group 68, and the second bus bar copper bar 611 connects the second main bus bar copper bar 54 and the inlet wire pile head 65 of the second bus bar isolation switch 63.

As shown in fig. 1-3, the circuit breaker chamber 3 is provided with a circuit breaker 31, and the contact block group 8 includes an inner first contact block group 81 provided in the disconnecting switch chamber 6 and an inner second contact block group 82 provided in the cable chamber 7. A contact box is arranged in the contact box group 8; the first contact box group 81 includes 3 contact boxes; the second contact box group 82 includes 3 contact boxes. The contact box is mated with a circuit breaker 31. The circuit breaker 31 connects the power supply of the disconnecting switch chamber 6 and the cable chamber 7 to form a circuit controlled by the circuit breaker 31.

As shown in fig. 2-5, the operating mechanism 9 is disposed in the disconnector compartment 6, and the operating mechanism 9 includes an operating mechanism main shaft 91, an operating mechanism and circuit breaker interlock 94, and an operating mechanism handle interlock 95. The disconnector operating mechanism comprises a first bus disconnector operating mechanism 92, a second bus disconnector operating mechanism 93. The first bus bar isolation switch operating mechanism 92 and the second bus bar isolation switch operating mechanism 93 are symmetrically installed.

The first bus isolating switch operating mechanism 92, the second bus isolating switch operating mechanism 93 and the operating mechanism and circuit breaker interlocking 94 are all fixed on the operating mechanism main shaft 91, the first bus isolating switch operating mechanism 92 and the second bus isolating switch operating mechanism 93 are closed through rotation of the operating mechanism main shaft 91, and the operating mechanism and circuit breaker interlocking 94 and the operating mechanism handle interlocking 95 are arranged on the front portion of the operating mechanism main shaft 91.

The isolating switch operating mechanism is a bevel gear mechanism, and the bevel gear mechanism is a half gear and a half disc structure; the bevel gear mechanism includes a gear engagement portion and a disk locking portion.

The outside of the high-voltage power distribution cabinet main body 1 is movably connected with an operating rod, and the operating rod can be inserted into the front end of the operating mechanism main shaft 91.

The working principle of the invention is as follows: the operating mechanism 9 of the isolating switch 61 operates the isolating switch 61 through meshing transmission of gears, and when the operating mechanism 9 is in a middle position, the first bus isolating switch operating mechanism 92 and the second bus isolating switch operating mechanism 93 are in a meshing state; when the operating mechanism rotates against the needle, the gear meshing part of the second busbar isolating switch operating mechanism 93 rotates to the state of the disc locking part under the rotation of the operating mechanism main shaft 91, the disc locking part of the second busbar isolating switch operating mechanism 93 locks the switch gear of the second busbar isolating switch 63, the gear meshing part of the second busbar isolating switch operating mechanism 93 is meshed with and loosened from the switch gear of the second busbar isolating switch 63, the disc locking part of the second busbar isolating switch operating mechanism 93 rotates, and the second busbar isolating switch 63 is in the locking state and does not act; the switching gear of first bus bar isolation switch 62 engages first bus bar isolation switch operating mechanism 92 to close (or open) first bus bar isolation switch 62. When the operation mechanism 9 is rotated to the neutral position, the switch gear of the first bus bar disconnecting switch 62 and the switch gear of the second bus bar disconnecting switch 63 are both engaged, and the first bus bar disconnecting switch 62 and the second bus bar disconnecting switch 63 are both in the open (or close) state. The operating mechanism 9 continues to rotate, the first bus bar isolation switch operating mechanism 92 enters the disc locking part, the gear engagement is disconnected, and the switch gear of the second bus bar isolation switch 63 engages the second bus bar isolation switch operating mechanism 93, so that the second bus bar isolation switch 63 is switched on (or switched off). Thus, the first bus isolating switch operating mechanism 92 and the first bus isolating switch operating mechanism 92 interact with each other, so that clockwise or anticlockwise rotation is realized, one isolating switch works, and the other isolating switch is locked to achieve mechanical interlocking; when the first bus disconnecting switch operating mechanism 92 and the second bus disconnecting switch operating mechanism 93 are closed, the operating mechanism 9 can normally operate the disconnecting switch 61, when the circuit breaker 31 in the circuit breaker chamber 3 is in an isolating position, the operating mechanism handle interlock 95 is interlocked with the position of the circuit breaker 31 when the circuit breaker 31 needs to leave the isolating position, and if the operating rod is inserted on the operating mechanism main shaft 91, the circuit breaker 31 cannot be swung in; if the circuit breaker 31 is shaken in and leaves the isolation position, the operating rod cannot be inserted into the operating mechanism main shaft 91, and the circuit breaker 31 and the operating mechanism handle interlock 95 are mutually interlocked, so that the high-voltage five-prevention requirement that the disconnecting switch cannot be operated under the condition of load is met.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The utility model provides a two bus-bar system high voltage distribution cabinet which characterized in that: the high-voltage distribution cabinet comprises a high-voltage distribution cabinet main body (1), a relay chamber (2) arranged at the upper part of the high-voltage distribution cabinet main body (1), and a breaker chamber (3) arranged below the relay chamber (2); the high-voltage distribution cabinet comprises a standby space (4) arranged at the bottom of a main body (1) of the high-voltage distribution cabinet, a main bus chamber (5) arranged at the top of the main body (1) of the high-voltage distribution cabinet, an isolating switch chamber (6) arranged below the main bus chamber (5), a cable chamber (7) arranged below the isolating switch chamber (6), and a contact box group arranged inside the main body (1) of the high-voltage distribution cabinet; the main bus bar chamber (5) comprises a first bus bar chamber (51) and a second bus bar chamber (52); the first bus chamber (51) is provided with a first main bus copper bar (53), and the second bus chamber (52) is provided with a second main bus copper bar (54); the first main bus bar copper bar (53) and the second main bus bar copper bar (54) are symmetrically distributed; a bus chamber partition plate (55) is arranged between the first bus chamber (51) and the second bus chamber (52);

the main bus chamber (5) is provided with an insulator; an isolating switch (61) is installed in the isolating switch chamber (6); the disconnecting switch (61) comprises a first bus disconnecting switch (62) and a second bus disconnecting switch (63); a connecting copper bar (64) is arranged between the first bus isolating switch (62) and the second bus isolating switch (63); the connecting copper bar (64) is connected with the lower port of the first bus isolating switch (62) and the lower port of the second bus isolating switch (63); a partition plate (66) is arranged between the main bus chamber (5) and the isolating switch chamber (6), and a wall bushing group is sleeved on the partition plate (66);

an operating mechanism (9) is arranged in the isolating switch chamber (6), the operating mechanism (9) comprises an operating mechanism main shaft (91), the operating mechanism is interlocked (94) with the circuit breaker, and an operating mechanism handle is interlocked (95); the disconnecting switch operating mechanism comprises a first bus disconnecting switch operating mechanism (92) and a second bus disconnecting switch operating mechanism (93); the first bus isolating switch operating mechanism (92) and the second bus isolating switch operating mechanism (93) are symmetrically arranged; the first bus isolating switch operating mechanism (92), the second bus isolating switch operating mechanism (93) and the operating mechanism and breaker interlocking (94) are all fixed on the operating mechanism main shaft (91), and the operating mechanism and breaker interlocking (94) and the operating mechanism handle interlocking (95) are arranged on the front portion of the operating mechanism main shaft (91).

2. The double-busbar system high-voltage distribution cabinet according to claim 1, wherein: and a grounding switch (10), a lightning arrester (11) and a current transformer (12) are arranged in the cable chamber (7).

3. The double-busbar system high-voltage distribution cabinet according to claim 1, wherein: the first bus chamber (51) is arranged at the rear top of the high-voltage distribution cabinet, and the second bus chamber (52) is arranged at the front side of the first bus chamber (51); the first bus-bar room (51) and the second bus-bar room (52) are arranged in front and at the back, and the isolating switch room (6) is arranged in the middle of the back of the high-voltage power distribution cabinet main body (1); and the shell frame of the main bus chamber (5) is fixed at the top of the isolating switch chamber (6).

4. The double-busbar system high-voltage distribution cabinet according to claim 1, wherein: the bus chamber partition plate (55) is a double-layer steel plate.

5. The double-busbar system high-voltage distribution cabinet according to claim 1, wherein: the insulator comprises a first insulator (56), a second insulator (57), a third insulator (58), a fourth insulator (59), a fifth insulator (510), a sixth insulator (511), wherein the first insulator (56), the second insulator (57) and the third insulator (58) are fixedly arranged in the first bus chamber (51); the first insulator (56) is fixedly arranged on one side of the bus chamber partition plate (55); the second insulator (57) and the third insulator (58) are fixedly arranged on the rear plate of the first bus chamber (51); a fourth insulator (59), a fifth insulator (510) and a sixth insulator (511) are fixedly arranged on the second bus chamber (52); the fourth insulator (59) is fixedly arranged on the other side of the bus chamber partition plate (55); the fifth insulator (510) and the sixth insulator (511) are fixedly arranged on the front plate of the second bus chamber (52); the first insulator (56) and the fourth insulator (59) are respectively fixed on two sides of the bus chamber partition plate (55).

6. The double-busbar system high-voltage distribution cabinet according to claim 1, wherein: the first bus isolating switch (62) and the second bus isolating switch (63) are both provided with incoming line pile heads (65); the first bus isolating switch (62) and the first bus isolating switch (62) are both provided with switch gears.

7. The double-busbar system high-voltage distribution cabinet according to claim 1, wherein: the wall bushing set comprises a first wall bushing set (67) and a second wall bushing set (68); the first wall bushing group (67) comprises 3 wall bushings (69), and the first wall bushing group (67) is arranged between the first busbar chamber (51) and the first busbar isolation switch (62); a first bus bar copper bar (610) is arranged in the first wall bushing group (67), and the first bus bar copper bar (610) is connected with a first main bus bar copper bar (53) and a wire inlet pile head (65) of a first bus bar isolating switch (62); the second wall bushing group (68) comprises 3 wall bushings (69), and the second wall bushing group (68) is arranged between the second busbar chamber (52) and the second busbar isolation switch (63); a second bus copper bar (611) is arranged in the second wall bushing group (68), and the second bus copper bar (611) is connected with a second main bus copper bar (54) and an incoming line pile head (65) of a second bus isolating switch (63).

8. The double-busbar system high-voltage distribution cabinet according to claim 1, characterized in that: the circuit breaker chamber (3) is provided with a circuit breaker (31), and the contact box group (8) comprises an inner first contact box group (81) arranged in the disconnecting switch chamber (6) and an inner second contact box group (82) arranged in the cable chamber (7); a contact box is arranged in the contact box group (8); the first contact box group (81) comprises 3 contact boxes; the second contact box group (82) comprises 3 contact boxes; the contact box is matched with a breaker (31).

9. The double-busbar system high-voltage distribution cabinet according to claim 1, characterized in that: the isolating switch operating mechanism is a bevel gear mechanism, and the bevel gear mechanism is a half gear and a half disc structure; the bevel gear mechanism includes a gear engagement portion and a disk locking portion.

10. The double-busbar system high-voltage distribution cabinet according to claim 1, characterized in that: the high-voltage power distribution cabinet is characterized in that an operating rod is movably connected to the outer portion of the high-voltage power distribution cabinet main body (1), and the operating rod can be inserted into the front end of the operating mechanism main shaft (91).