CN211405065U

CN211405065U - Separated high-voltage switch cabinet

Info

Publication number: CN211405065U
Application number: CN201922441104.7U
Authority: CN
Inventors: 曾国伟; 王伟; 胡金磊; 欧树华; 王文博; 黄石华; 吴昆泰; 唐琦; 阮伟聪; 黎阳羊
Original assignee: Guangdong Power Grid Co Ltd; Qingyuan Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Qingyuan Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-01
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a separated high-voltage switch cabinet, which comprises a main bus cabinet, a spare bus cabinet and an outlet cabinet which are separated from each other, and a first cable and a second cable which play a role in connection; a main bus and a first isolating switch connected with the main bus are arranged in the main bus cabinet; a standby bus is arranged in the standby bus cabinet; a spare bus isolation chamber, a pressure relief channel and a breaker chamber are arranged in the wire outlet cabinet in parallel, the pressure relief channel is arranged between the spare bus isolation chamber and the breaker chamber, a second isolation switch is arranged in the spare bus isolation chamber, and a breaker is arranged in the breaker chamber; one end of the first cable is connected with the first isolating switch, and the other end of the first cable is connected with the circuit breaker; one end of the second cable is connected with the standby bus, and the other end of the second cable is connected with the second isolating switch. The separated high-voltage switch cabinet has good fault isolation performance.

Description

Separated high-voltage switch cabinet

Technical Field

The utility model relates to a power equipment technical field especially relates to a cellular-type high tension switchgear.

Background

High-voltage switch cabinets are common equipment in electrical control systems and are commonly applied to power distribution networks. The switch module with the functions of on-off, control or protection is integrated in one cabinet body, and the cabinet is widely applied to occasions of power generation, power transmission, power distribution, electric energy conversion and the like of a power system.

The existing high-voltage switch cabinet comprises a cabinet body, wherein a plurality of elements are arranged in the cabinet body. When an internal arcing fault occurs in a certain element in the high-voltage switch cabinet, other elements in the high-voltage switch cabinet can be affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cellular-type high tension switchgear, this high tension switchgear can effectively keep apart the internal combustion arc trouble.

To achieve the purpose, the utility model adopts the following technical proposal:

a separated high-voltage switch cabinet comprises a main bus cabinet, a spare bus cabinet, an outlet cabinet, a first cable and a second cable, wherein the main bus cabinet, the spare bus cabinet and the outlet cabinet are mutually separated;

a main bus and a first isolating switch connected with the main bus are arranged in the main bus cabinet;

a standby bus is arranged in the standby bus cabinet;

a spare bus isolation chamber, a pressure relief channel and a breaker chamber are arranged in the wire outlet cabinet in parallel, the pressure relief channel is arranged between the spare bus isolation chamber and the breaker chamber, a second isolation switch is arranged in the spare bus isolation chamber, and a breaker is arranged in the breaker chamber;

one end of the first cable is connected with the first isolating switch, and the other end of the first cable is connected with the circuit breaker;

one end of the second cable is connected with the standby bus, and the other end of the second cable is connected with the second isolating switch.

Optionally, the main bus cabinet comprises a main bus chamber and a main bus isolation chamber which are arranged in parallel, and a first vertical plate is arranged between the main bus chamber and the main bus isolation chamber; the spare bus cabinet comprises a spare bus chamber and a spare bus cable chamber which are arranged in parallel, and a second vertical plate is arranged between the spare bus chamber and the spare bus cable chamber.

Optionally, the outlet cabinet further comprises a cable chamber and a control chamber, the cable chamber is arranged below the mother isolation chamber and the breaker chamber, and an outlet cable is further arranged in the cable chamber; the control chamber is arranged below the breaker chamber.

Optionally, the top cover of the main bus chamber, the top cover of the main bus isolation chamber, the top cover of the spare bus cable chamber, the top cover of the spare bus isolation chamber, the top cover of the pressure relief channel and the top cover of the breaker chamber are respectively provided with pressure relief doors, and the pressure relief doors are arranged in a mutually separated manner.

Alternatively, one side of the pressure relief door is fixed by a metal screw, and the side away from the metal screw is fixed by a plastic screw.

Optionally, the main bus, the first isolating switch, the first cable, the breaker and the outgoing cable are connected in sequence; the spare bus, the second cable, the second isolating switch and the outgoing cable are connected in sequence.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a main bus cabinet, be equipped with bus cabinet and the cabinet of being qualified for the next round of competitions adopt the cellular-type setting of each other, and the cabinet of being qualified for the next round of competitions is provided with pressure release channel and keeps apart and be equipped with female isolation chamber and circuit breaker room. The switch cabinet realizes the connection of an isolating switch in a main bus cabinet and an indoor circuit breaker of a circuit breaker through a first cable, realizes the connection of a standby bus in a standby bus cabinet and a second isolating switch in a standby bus isolating chamber through a second cable, and enables elements in a high-voltage switch cabinet of an isolating chamber to be isolated from each other. The main bus cabinet, the spare bus cabinet and the switch cabinet are arranged in a mutually separated mode, normal work of other elements cannot be influenced when an arcing fault occurs in one element, and the fault isolation function is good.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose.

Fig. 1 is a schematic structural diagram of a partitioned high-voltage switch cabinet according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a main bus bar cabinet of a partitioned high-voltage switch cabinet according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a busbar cabinet of a partitioned high-voltage switch cabinet according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of the outgoing line cabinet of the separated high-voltage switch cabinet according to the embodiment of the present invention.

Fig. 5 is a schematic view of an assembly cross section of a pressure relief door of a partitioned high-voltage switch cabinet according to an embodiment of the present invention.

Fig. 6 is a schematic top view of a pressure relief door of a partitioned high-voltage switch cabinet according to an embodiment of the present invention.

Illustration of the drawings: the main bus cabinet 1, the main bus chamber 10, the main bus 101, the main bus isolation chamber 11, the first isolation switch 111, the first vertical plate 12, the spare bus cabinet 2, the spare bus chamber 20, the spare bus 201, the spare bus cable chamber 21, the second vertical plate 22, the outlet cabinet 3, the spare bus isolation chamber 30, the second isolation switch 301, the pressure relief channel 31, the breaker chamber 32, the breaker 321, the cable chamber 33, the outlet cable 331, the control chamber 34, the first cable 44, the second cable 5, the pressure relief door 6, the metal screw 61, and the plastic screw 62.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Referring to fig. 1-6, an embodiment of the present invention provides a separated high voltage switch cabinet, which includes a main bus bar cabinet 1, a spare bus bar cabinet 2, an outlet cabinet 3, and a first cable 4 and a second cable 5 for connection; the outlet cabinet 3 further comprises a spare bus isolation chamber 30, a pressure relief channel 31 and a breaker chamber 32, the pressure relief channel 31 is arranged between the spare bus isolation chamber 30 and the breaker chamber 32, a second isolation switch 301 is arranged in the spare bus isolation chamber 30, and a breaker 321 is fixedly arranged in the breaker chamber 32. The first cable 4 connects the first disconnector 111 and the circuit breaker 321, and the second cable connects the spare bus 201 and the second disconnector 301.

The main bus cabinet 1 is provided with a main bus chamber 10 and a main bus isolation chamber 11, and the main bus chamber 10 and the main bus isolation chamber 11 are isolated by a first vertical plate 12. A main bus 101 is arranged in the main bus chamber 10, connecting terminals are arranged on two sides of the first vertical plate 12, the main bus 101 is connected with one end of the first isolating switch 111 through the connecting terminals arranged on the first vertical plate 12, and the first cable 4 is connected with the other end of the first isolating switch 111.

The spare bus cabinet 2 is provided with a spare bus compartment 20 and a spare bus cable compartment 33, and the spare bus compartment 20 and the spare bus cable compartment 21 are isolated by a second riser 22. The spare bus 201 is provided in the spare bus chamber 20, and connection terminals are provided on both sides of the second vertical plate 22, and the spare bus 201 is connected to the second cable 5 through the connection terminals.

A cable chamber 33 and a control chamber 34 are arranged below the spare bus isolation chamber 30, the pressure relief channel 31 and the breaker chamber 32 which are arranged in parallel in the outgoing line cabinet 3, and an outgoing line cable 331 is arranged in the cable chamber 33. The backup isolation chamber 30 is isolated from the breaker chamber 32 by a pressure relief passage 31. One end of the second isolation switch 301 in the spare female isolation room 30 is connected to the second cable 5, and the other end is connected to the outgoing cable 331. The breaker 321 in the breaker chamber 32 has one end connected to the first cable 4 and the other end connected to the outgoing cable 331. Control room 34 is used to set control buttons, indicator lights, or display screens.

The top cover of the main bus chamber 10, the top cover of the main bus isolation chamber 11, the top cover of the spare bus cable chamber 21, the top cover of the spare bus chamber 20, the top cover of the spare bus isolation chamber 30, the top cover of the pressure relief channel 31 and the top cover of the breaker chamber 32 are respectively provided with a pressure relief door 6, and the pressure relief doors 6 are arranged in a mutually separated mode. Referring to fig. 5-6, all the pressure relief doors 6 are fixed by metal screws 61 on one side and by plastic screws 62 on the side away from the metal screws 61.

The main bus cabinet 1, the bus cabinet and the outgoing line cabinet 3 are arranged in a mutually separated mode, the outgoing line cabinet 3 is provided with a pressure relief channel 31 to isolate a spare bus isolation chamber 30 and a breaker chamber 32, the connection between an isolation switch in the main bus cabinet 1 and a breaker 321 in the breaker chamber 32 is realized through a first cable 4, the connection between a spare bus 201 in the spare bus cabinet 2 and a second isolation switch 301 in the spare bus isolation chamber 30 is realized through a second cable 5, and elements in the isolated high-voltage switch cabinet are isolated from each other. Each component cabinet body and each element in the cabinet body are arranged in a separated mode, and when an arcing fault occurs to one element, the normal work of other elements cannot be influenced, so that the separated high-voltage switch cabinet in the embodiment has a good fault isolation function.

A pressure relief channel 31 in the outlet cabinet 3 can separate a main isolation chamber 30 and a breaker chamber 32; on the other hand, when arcing faults occur, the high-temperature gas generated by arcing faults in the wire cabinet can be quickly released.

The pressure relief door 6 is beneficial to protecting elements in the cabinet, when high-temperature gas generated by arcing faults cannot be released quickly, the plastic screw 62 on the pressure relief door 6 is gradually softened and broken under the action of temperature and pressure in the cabinet, and the pressure relief door 6 is tilted upwards to achieve the aim of quickly releasing high-temperature gas. At this time, the metal screw 61 still continues to fix the pressure relief door 6, and the pressure relief door 6 is prevented from flying out by the high-temperature gas, so as to prevent injury to people.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A separated high-voltage switch cabinet is characterized by comprising a main bus cabinet (1), a spare bus cabinet (2), an outlet cabinet (3), a first cable (4) and a second cable (5), wherein the main bus cabinet, the spare bus cabinet and the outlet cabinet are mutually separated;

a main bus (101) and a first isolating switch (111) connected with the main bus (101) are arranged in the main bus cabinet (1);

a spare bus (201) is arranged in the spare bus cabinet (2);

a spare bus isolation chamber (30), a pressure relief channel (31) and a breaker chamber (32) which are arranged in parallel are arranged in the outgoing line cabinet (3), the pressure relief channel (31) is arranged between the spare bus isolation chamber (30) and the breaker chamber (32), a second isolation switch (301) is arranged in the spare bus isolation chamber (30), and a breaker (321) is arranged in the breaker chamber (32);

one end of the first cable (4) is connected with the first disconnecting switch (111), and the other end of the first cable is connected with the circuit breaker (321);

one end of the second cable (5) is connected with the spare bus (201), and the other end of the second cable is connected with the second isolating switch (301).

2. The partitioned high-voltage switch cabinet according to claim 1, characterized in that the main bus bar cabinet (1) comprises a main bus bar chamber (10) and a main bus isolation chamber (11) which are arranged in parallel, and a first vertical plate (12) is arranged between the main bus bar chamber (10) and the main bus isolation chamber (11); the spare bus cabinet (2) comprises a spare bus chamber (20) and a spare bus cable chamber (21) which are arranged in parallel, and a second vertical plate (22) is arranged between the spare bus chamber (20) and the spare bus cable chamber (21).

3. The cubicle high-voltage switchgear according to claim 2, wherein said outgoing cabinet (3) further comprises a cable chamber (33) and a control chamber (34), said cable chamber (33) being arranged below said busbar isolation chamber (30) and said circuit breaker chamber (32), said cable chamber (33) being further provided with an outgoing cable (331); the control chamber (34) is provided below the breaker chamber (32).

4. The high-voltage switchgear cabinet according to claim 2, wherein the top cover of the main bus bar compartment (10), the top cover of the main bus bar compartment (11), the top cover of the spare bus bar compartment (21), the top cover of the spare bus bar compartment (20), the top cover of the spare bus bar compartment (30), the top cover of the pressure relief channel (31), and the top cover of the breaker compartment (32) are respectively provided with pressure relief doors (6), and the pressure relief doors (6) are arranged separately from each other.

5. The high-voltage switchgear cabinet unit according to claim 4, wherein the pressure-relief door (6) is fastened by metal screws (61) on one side and by plastic screws (62) on the side remote from the metal screws (61).

6. A partitioned high voltage switchgear, according to claim 3, characterized in that said main bus 101, said first disconnector (111), said first cable (4), said circuit breaker (321) and said outgoing cable (331) are connected in sequence; the spare bus (201), the second cable (5), the second isolating switch (301) and the outgoing cable (331) are connected in sequence.