CN211829879U

CN211829879U - Power distribution device for transformer substation

Info

Publication number: CN211829879U
Application number: CN202020753392.XU
Authority: CN
Inventors: 马明; 胡艳峰
Original assignee: China Railway 12th Bureau Group Co Ltd; China Railway 12th Bureau Group Electrification Engineering Co Ltd
Current assignee: China Railway 12th Bureau Group Co Ltd; China Railway 12th Bureau Group Electrification Engineering Co Ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2020-10-30
Anticipated expiration: 2030-05-09

Abstract

The utility model belongs to the technical field of distribution equipment, and discloses a distribution device for a transformer substation, which comprises an instrument room and a control room arranged below the instrument room, wherein the instrument room comprises an instrument fixing box and an instrument room door, the instrument fixing box is used for installing an instrument, and a first door handle is arranged on the instrument room door; the inside of the control chamber is provided with a partition plate, the partition plate divides the control chamber into a circuit breaker chamber positioned in front and a bus chamber and a cable chamber positioned in rear, a circuit breaker chamber door is arranged in front of the circuit breaker chamber, a second door handle, an observation window and an installation heat dissipation plate are arranged on the circuit breaker chamber door, an indication box, a circuit breaker control box and an isolating switch are arranged in the circuit breaker chamber, and the isolating switch is fixedly arranged on the partition plate; a bus sleeve and a circuit breaker are arranged in the bus chamber, and the circuit breaker is fixedly arranged on the upper portion of the partition plate. The utility model provides high distribution equipment's security.

Description

Power distribution device for transformer substation

Technical Field

The utility model relates to a distribution equipment technical field specifically is a distribution device for transformer substation.

Background

The transformer substation is a place for converting voltage and current, receiving electric energy and distributing electric energy in an electric power system. The substations in the power plant are step-up substations, which are used to boost up the electrical energy generated by the generator and feed it into the high-voltage network. The power distribution device is an important component of a power plant and a power substation, and is a specific implementation of an electric main connection of the power plant and the power substation. The distribution equipment is composed of switchgear, protection equipment, measuring equipment, bus and necessary auxiliary equipment according to the connection mode of main electrical wiring, and the auxiliary equipment comprises a framework, a foundation, a house, a channel and the like for installing and arranging electrical equipment.

At present, the protection effect of a power distribution device is not comprehensive, and the protection of substation equipment and the protection of operators are incomplete. Accordingly, there is a need for an improved power distribution apparatus structure in the prior art to solve the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes the deficiencies in the prior art, the technical problem who solves is: a distribution device for a substation is provided, and the safety and convenience of a configuration device are improved.

In order to solve the technical problem, the utility model discloses a technical scheme be: a power distribution device for a transformer substation comprises an instrument room and a control room arranged below the instrument room, wherein the instrument room comprises an instrument fixing box and an instrument room door, the instrument fixing box is used for installing an instrument, and a first door handle is arranged on the instrument room door;

the control room is internally provided with a partition plate, the partition plate divides the control room into a circuit breaker room positioned in front and a bus room and a cable room positioned in rear, a circuit breaker room door is arranged in front of the circuit breaker room, a second door handle, an observation window and a heat dissipation plate are arranged on the circuit breaker room door, an indication box, a circuit breaker control box and an isolating switch are arranged in the circuit breaker room, and the isolating switch is fixedly arranged on the partition plate;

the bus chamber is arranged above the cable chamber, a bus sleeve and a circuit breaker are arranged in the bus chamber, and the circuit breaker is fixedly arranged at the upper part of the partition plate; the cable chamber is internally provided with an arrester, an insulating bottom plate and a bottom line interface, the arrester is fixedly arranged on the insulating bottom plate, and the bottom line interface is fixedly welded on the side wall of the control chamber.

Preferably, the circuit breaker chamber is provided with two isolating switches which are respectively arranged above and below the partition plate.

Preferably, the bottom of the control chamber is provided with a supporting leg.

Preferably, the first door handle and the second door handle are both made of insulating materials.

Preferably, isolator includes unable adjustment base, support knob insulator, wiring board and latch hook, supports knob insulator fixed mounting in unable adjustment base's upper end, and the up end at the support knob insulator is installed to the wiring board, and the latch hook setting is on the wiring board.

Preferably, the circuit breaker includes connecting rod case, insulator, goes up leading-out terminal, lower leading-out terminal, insulating insulator, connecting block and insulating pull rod, and insulator fixed mounting is on the connecting rod case, goes up leading-out terminal and lower leading-out terminal all with insulator fixed connection to be connected through insulating insulator and connecting block, insulating pull rod sets up on the lower leading-out terminal.

Preferably, the two groups of insulators are symmetrically distributed about a transverse center line of the connecting rod box.

Preferably, the indication box is arranged above the door of the circuit breaker chamber, and an indication lamp is arranged on the surface of the indication box.

1. The utility model provides a distribution device for transformer substation, through setting up instrument room, circuit breaker room, generating line room and cable chamber, the instrument room sets up in a box alone, and circuit breaker room, generating line room and cable chamber set up in same box, have improved distribution device's security.

2. The utility model discloses an installation adopts first door handle and the second door handle that insulating material made for operating personnel can not be by unexpected electric shock when overhauing or maintaining, and the security performance increases, has played very big protection to operating personnel's personal safety.

3. The utility model discloses an inside isolator and the circuit breaker of being provided with of distribution device for distribution device is when appearing too high or crossing low excessively in voltage, and accessible isolator cuts off the cable, has protected the component, and circuit breaker disconnection generating line plays the effect of power-off protection, has fine protection to the equipment of transformer substation.

Drawings

Fig. 1 is a front view of a power distribution apparatus for a transformer substation according to an embodiment of the present invention;

FIG. 2 is a side cross-sectional view of FIG. 1;

fig. 3 is a schematic structural diagram of an isolation switch in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a circuit breaker according to an embodiment of the present invention.

In the figure: 1. an instrument room; 2. a circuit breaker chamber; 3. a bus chamber; 4. a cable chamber; 11. an instrument fixing box; 12. an instrument room door; 21. an indicator box; 22. A circuit breaker control box; 23. an isolating switch; 24. a circuit breaker chamber door; 25. supporting legs; 31. a bus bushing; 32. a circuit breaker; 33. A partition plate; 41. a lightning arrester; 42. an insulating base plate; 43. a bottom line interface; 111. a meter; 121. a first door handle; 211. an indicator light; 231. a fixed base; 232. supporting the porcelain columns; 233. a wiring board; 234. a latch hook; 241. A second door handle; 242. an observation window; 243. installing a heat dissipation plate; 321. a connecting rod box; 322. an insulator; 323. an upper outlet end; 324. a lower outlet end; 325. an insulating porcelain bushing; 326. connecting blocks; 327. and (4) insulating the pull rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention; 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.

Referring to fig. 1-4, an embodiment of the present invention provides a power distribution apparatus for a transformer substation, the power distribution apparatus comprising an instrument room 1 and a control room disposed below the instrument room 1, the instrument room 1 comprising an instrument fixing box 11 and an instrument room door 12, the instrument fixing box 11 being used for installing an instrument 111, the instrument 111 comprising a voltmeter and an ammeter, the instrument room door 12 being provided with a first door handle 121; a partition plate 33 is arranged in the control room, the partition plate 33 divides the control room into a circuit breaker room 2 positioned in front, a bus room 3 and a cable room 4 positioned in rear, a circuit breaker room door 24 is arranged in front of the circuit breaker room 2, a second door handle 241, an observation window 242 and a heat dissipation plate 243 are arranged on the circuit breaker room door 24, an indication box 21, a circuit breaker control box 22 and a disconnecting switch 23 are arranged in the circuit breaker room 2, the disconnecting switch 23 is fixedly arranged on the partition plate 33, and the circuit breaker control box 22 is fixedly arranged on the lower surface of the circuit breaker room 2; the bus chamber 3 is arranged above the cable chamber 4, a bus sleeve 31 and a breaker 32 are arranged in the bus chamber 3, and the breaker 32 is fixedly arranged at the upper part of a partition plate 33; the cable chamber 4 is internally provided with an arrester 41, an insulating bottom plate 42 and a bottom wire interface 43, the arrester 41 is fixedly arranged on the insulating bottom plate 42, and the bottom wire interface 43 is fixedly welded on the side wall of the control chamber.

Further, as shown in fig. 2, in the present embodiment, two disconnecting switches 23 are provided in the breaker chamber 2, respectively above and below the partition plate 33. By installing the disconnecting switch 23 and the circuit breaker 32, when the voltage of the power distribution device is too high or too low, the cable can be separated through the disconnecting switch 23, elements are protected, the circuit breaker 32 breaks a bus, the effect of power-off protection is achieved, the equipment of a transformer substation is well protected,

further, as shown in FIGS. 1-2, in the present embodiment, the bottom of the control chamber is provided with support legs 25.

Further, as shown in fig. 1 to 2, in the present embodiment, the first door handle 121 and the second door handle 241 are both made of an insulating material. The first door handle 121 and the second door handle 241 made of insulating materials are installed, so that the operator cannot be accidentally shocked when overhauling or maintaining, the safety performance is improved, and the personal safety of the operator is greatly protected.

Further, as shown in fig. 3, the disconnecting switch 23 includes a fixing base 231, a supporting knob 232, a wiring board 233 and a locking hook 234, the supporting knob 232 is fixedly installed at the upper end of the fixing base 231, the wiring board 233 is installed at the upper end surface of the supporting knob 232, and the locking hook 234 is disposed on the wiring board 233.

Further, as shown in fig. 4, the circuit breaker 32 includes a connecting rod box 321, an insulator 322, an upper outlet terminal 323, a lower outlet terminal 324, an insulating porcelain bushing 325, a connecting block 326 and an insulating pull rod 327, the insulator 322 is fixedly installed on the connecting rod box 321, the upper outlet terminal 323 and the lower outlet terminal 324 are both fixedly connected to the insulator 322 and connected to the connecting block 326 through the insulating porcelain bushing 325, and the insulating pull rod 327 is disposed on the lower outlet terminal 324. The connecting rod box 321 is used for connecting and installing the insulating pull rod 327 and fixing the insulator 322, the insulating porcelain bushing 325 is divided into an upper section and a lower section, the connecting block 326 is used for connecting the two sections of insulating porcelain bushings 325, the upper wire outlet end 323 and the lower wire outlet end 324 are both connected with the connecting rod box 321 through the insulator 322, so that the safety is better, the phenomenon of accidental short circuit cannot occur, the insulating pull rod 327 is used for separating a bus in the insulating porcelain bushing 325, and the purpose of circuit breaking is achieved, the circuit breaker 32 shown in the figure is only an installation part of the circuit breaker 32, an operating rod is not shown, the operating rod is connected with the insulating pull rod 327 in the connecting rod box 321, the insulating pull rod 327 is pulled through the operating rod, and the purpose of separating the bus is achieved.

Further, as shown in fig. 2, the insulators 322 are provided in two groups, and the two groups of insulators 322 are symmetrically distributed about a transverse center line of the connecting rod box 321.

Further, as shown in fig. 1, the indication box 21 is disposed above the breaker chamber door 24, and an indication lamp 211 is disposed on a surface thereof.

In summary, the following steps: the utility model provides a distribution device for transformer substation, including instrument room 1, circuit breaker room 2, generating line room 3 and cable chamber 4, instrument room 1 sets up in a box alone, and circuit breaker room 2, generating line room 3 and cable chamber 4 set up in the same box, through installing first door handle 121 and second door handle 241 that adopt insulating material to make, make operating personnel when overhauing or maintaining, can not be by the unexpected electric shock, the security performance increases, has played very big protection to operating personnel's personal safety; through installation isolator 23 and circuit breaker 32 for distribution device is when appearing the voltage too high or cross low, and accessible isolator 23 cuts off the cable, has protected the component, and circuit breaker 32 breaks off the generating line, plays the effect of power-off protection, has fine protection to the equipment of transformer substation.

Finally, it should be noted that: 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 or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The power distribution device for the transformer substation is characterized by comprising an instrument room (1) and a control room arranged below the instrument room (1), wherein the instrument room (1) comprises an instrument fixing box (11) and an instrument room door (12), the instrument fixing box (11) is used for installing an instrument (111), and a first door handle (121) is arranged on the instrument room door (12);

the control room is internally provided with a partition plate (33), the partition plate (33) divides the control room into a circuit breaker room (2) positioned in front, a bus room (3) and a cable room (4) positioned behind, a circuit breaker room door (24) is arranged in front of the circuit breaker room (2), a second door handle (241), an observation window (242) and a heat dissipation plate (243) are arranged on the circuit breaker room door (24), an indication box (21), a circuit breaker control box (22) and a disconnecting switch (23) are arranged in the circuit breaker room (2), and the disconnecting switch (23) is fixedly arranged on the partition plate (33);

the bus chamber (3) is arranged above the cable chamber (4), a bus sleeve (31) and a breaker (32) are arranged in the bus chamber (3), and the breaker (32) is fixedly arranged on the upper part of the partition plate (33); the cable chamber is characterized in that a lightning arrester (41), an insulating bottom plate (42) and a bottom line interface (43) are arranged in the cable chamber (4), the lightning arrester (41) is fixedly arranged on the insulating bottom plate (42), and the bottom line interface (43) is fixedly welded on the side wall of the control chamber.

2. A distribution device for substations according to claim 1, characterized in that two disconnectors (23) are arranged in the breaker chamber (2), respectively above and below the partition (33).

3. A distribution device for a substation according to claim 1, characterized in that the control room bottom is provided with support legs (25).

4. A distribution device for substations according to claim 1, wherein the first door handle (121) and the second door handle (241) are made of insulating material.

5. The power distribution device for a substation according to claim 1, wherein the disconnector (23) comprises a fixed base (231), a support knob (232), a terminal plate (233) and a latch hook (234), the support knob (232) is fixedly mounted at the upper end of the fixed base (231), the terminal plate (233) is mounted at the upper end face of the support knob (232), and the latch hook (234) is disposed on the terminal plate (233).

6. The power distribution device for the transformer substation according to claim 1, wherein the circuit breaker (32) comprises a connecting rod box (321), an insulator (322), an upper outlet end (323), a lower outlet end (324), an insulating porcelain bushing (325), a connecting block (326) and an insulating pull rod (327), the insulator (322) is fixedly installed on the connecting rod box (321), the upper outlet end (323) and the lower outlet end (324) are both fixedly connected with the insulator (322) and are connected with the connecting block (326) through the insulating porcelain bushing (325), and the insulating pull rod (327) is arranged on the lower outlet end (324).

7. A distribution device for substations according to claim 6, characterized in that the insulators (322) are provided in two groups, two groups of insulators (322) being symmetrically distributed about the transverse centre line of the rod box (321).

8. A distribution device for substations according to claim 1, characterized in that the indicator box (21) is arranged above the circuit breaker chamber door (24), the surface of which is provided with indicator lights (211).