CN204190247U - High-tension switch cabinet - Google Patents
High-tension switch cabinet Download PDFInfo
- Publication number
- CN204190247U CN204190247U CN201420527433.8U CN201420527433U CN204190247U CN 204190247 U CN204190247 U CN 204190247U CN 201420527433 U CN201420527433 U CN 201420527433U CN 204190247 U CN204190247 U CN 204190247U
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- Prior art keywords
- bus
- room
- cabinet
- bar
- breaker chamber
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- 238000009413 insulation Methods 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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Abstract
The utility model relates to a kind of high-tension switch cabinet, comprises cabinet, is set in sequence in Xiamen on cabinet, circuit breaker chamber door and control room's door, the control room be arranged in cabinet top, bus-bar room, the breaker chamber be arranged in cabinet, power cable room successively, is arranged on little bus-bar room above control room, is arranged on breaker chamber pressure relief device above breaker chamber, is arranged on bus-bar room pressure relief device above bus-bar room, is arranged on cable vault's pressure relief device above power cable room.The utility model adopts sleeve pipe parcel bus, to reduce between bus insulation distance and bus to the insulation distance of cabinet shell; Adopt the parts such as pressure relief device and lightning arrester, enhance the security performance of high-tension switch cabinet, easy and simple to handle, easy to use, safe and reliable, stability is high.
Description
Technical field
The utility model relates to field of electrical equipment, particularly a kind of high-tension switch cabinet.
Background technology
High-tension switch cabinet is a kind of switchgear assembly and control appliance, and it is as power center (PC) and main switching compound, main as the control to power circuit, primary electricity using device, supervision, measuring and protection, sets up and is placed in transformer station, switchgear house.
Existing high-voltage switch gear cabinet is mainly divided into: bus-bar room, breaker chamber, cable vault.These three compartments only have bus-bar room and breaker chamber to be provided with explosion-proof decompression device, and cable vault does not establish explosion-proof decompression device, therefore there is potential safety hazard.
Summary of the invention
In order to solve the problem of prior art, the utility model embodiment provides a kind of safe and reliable, the high-tension switch cabinet that stability is high.Described technical scheme is as follows:
The utility model embodiment provides a kind of high-tension switch cabinet, and described high-tension switch cabinet comprises cabinet, be set in sequence in the Xiamen on described cabinet successively, circuit breaker chamber door and control room's door, be arranged on the control room in described cabinet top, bus-bar room, be arranged on the breaker chamber in described cabinet, power cable room, be arranged on the little bus-bar room above described control room, be arranged on the breaker chamber pressure relief device above described breaker chamber, be arranged on the bus-bar room pressure relief device above described bus-bar room, be arranged on the cable vault's pressure relief device above described power cable room, be arranged on the double-acting door of side in described control room, be arranged on the linear quadratic control plug-in unit interlock bottom described control room, be arranged on the bus-bar room back door in described bus-bar room, be arranged on the main bus bar wrapped up by wall bushing in described bus-bar room back door, the branch bar be connected with described main bus bar, be arranged on the fixed contact bottom described bus-bar room, to match the fixed contact box arranged with described fixed contact, be arranged on the fixed contact box valve interlocking gear on described fixed contact box, be arranged on the handcart type breaker of described breaker chamber side, be arranged on the control cables room backplate on described breaker chamber, be arranged on the earthed switch interlocking gear in bottom described breaker chamber, visit in the cable vault being arranged on described power cable outside, to be visited the Xiamen, cable vault be connected by cable vault's upper-lower door interlock and described cable vault, be arranged on the earth bus bottom described power cable room, be arranged on the mutual device of zero-sequence current on described earthed switch interlocking gear and lightning rod, the earthed switch be connected with described lightning rod, the current transformer be disposed adjacent with described quiet contact head box.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
Adopt sleeve pipe parcel bus, to reduce between bus insulation distance and bus to the insulation distance of cabinet shell; Adopt the parts such as pressure relief device and lightning arrester, enhance the security performance of high-tension switch cabinet, easy and simple to handle, easy to use, safe and reliable, stability is high.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the high-tension switch cabinet that the utility model embodiment provides;
Fig. 2 is the state diagram after the cabinet door of the high-tension switch cabinet that the utility model embodiment provides closes.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model execution mode is described in further detail.
Embodiment
The utility model embodiment provides a kind of high-tension switch cabinet, see Fig. 1, Fig. 2, described high-tension switch cabinet comprises cabinet 28, be set in sequence in the Xiamen 27 on cabinet 28 successively, circuit breaker chamber door 26 and control room's door 25, be arranged on the control room A in cabinet 28 top, bus-bar room B, be arranged on the breaker chamber C in cabinet 28, power cable room D, be arranged on the little bus-bar room 1 above control room A, be arranged on the breaker chamber pressure relief device 24 above breaker chamber C, be arranged on the bus-bar room pressure relief device 23 above bus-bar room B, be arranged on the cable vault's pressure relief device 22 above the D of power cable room, be arranged on the double-acting door 2 of side in control room A, be arranged on the linear quadratic control plug-in unit interlock 4 bottom control room A, be arranged on the bus-bar room back door 20 in bus-bar room B, be arranged on the main bus bar 21 wrapped up by wall bushing 18 in bus-bar room back door 20, the branch bar 3 be connected with main bus bar 21, be arranged on the fixed contact 5 bottom bus-bar room B, to match the fixed contact box 6 arranged with fixed contact 5, be arranged on the fixed contact box valve interlocking gear 7 on fixed contact box 6, be arranged on the handcart type breaker 8 of breaker chamber C side, be arranged on the control cables room backplate 9 on breaker chamber C, be arranged on the earthed switch interlocking gear 10 in bottom breaker chamber C, the cable vault be arranged on outside the D of power cable room visits 19, to be visited 19 Xiamen, cable vault 15 be connected by cable vault's upper-lower door interlock 16 and cable vault, be arranged on the earth bus 11 bottom the D of power cable room, be arranged on the mutual device 12 of zero-sequence current on earthed switch interlocking gear 10 and lightning rod 13, the earthed switch 14 be connected with lightning rod 13, the current transformer 17 be disposed adjacent with quiet contact head box 6.
High-tension switch cabinet " five prevent " interlocked operation requirement;
1., when preventing a mistake deciliter circuit breaker-circuit breaker cart must be in service position or test position, circuit breaker just can carry out the operation of splitting or integrating lock.
2. prevent on-load running circuit breaker handcart-circuit breaker cart under circuit breaker is in gate-dividing state, only just can carry out pulling out or pushing the operation of service position.
3., when preventing charged conjunction earthing-circuit breaker cart must be in test position, earthing just can carry out closing operation.
4., when preventing cutter with ground power transmission-earthing must be in open position, circuit breaker cart just can push service position and carry out closing operation.
5. prevent mistakenly entering charged chamber-circuit breaker cart to be in test position, when earthing is in "on" position, just can open back door; Do not have the switch cubicle of earthing after high pressure has a power failure (opening back door electromagnetic lock), just must can open back door.
Note: high-tension switch cabinet, when normally running, should close door operation.
One, power transmission operation sequence:
By handcart transfer dolly, circuit breaker cart (or PT handcart, isolation handcart, fuse handcart) is pushed switch cubicle; When handcart enters cabinet, the left and right handle of handcart be inwardly pulled to handle II position simultaneously and handcart pushed the test position of switch cubicle, then by the left and right handle of handcart simultaneously to being extrapolated to handle I position, make handcart advancing mechanism and switch cubicle positive lock.
The secondary plug of handcart is inserted in the Secondary socket of switch cubicle, and lock with fastener;
Closing switch cabinet back door (cable chamber door) and Qianmen (circuit breaker chamber door); Open earthing operation valve, open earthing with earthing operating grip (counterclockwise), extract earthing operating grip out and close earthing operation valve, and confirm that earthing is in gate-dividing state.
Check that the mains switches (or secondary fuse) such as the control of instrument indoor, combined floodgate, signal, interchange and busbar voltage are in "on" position, and measure after supply voltage belongs to normal range (NR), close control room's door.
With on the spot or remote operation mode control operation (being in switch cubicle test position) circuit breaker splitting or integrating each once, confirm breaker control circuit wiring and signal circuit display correct.
Open handcart mechanism operation valve, advance crank (clockwise direction) that handcart is pushed switch cubicle service position (can send the padlock sound of " card clatter " when handcart arrives service position) with handcart, take out handcart and advance crank and close handcart mechanism operation valve.
With on the spot or remote operation mode control operation (being in switch cubicle service position) breaker closing.
Check that the electrification display A/B/C three-phase indicator light of switch cubicle is bright, now switch cubicle has been in electrification in high voltage state, measures or observes the busbar voltage of microcomputer protecting device display and go out line current and whether be in normal range (NR).
Two, power failure operation program:
With on the spot or remote operation mode control operation (being in switch cubicle service position) breaker open operation.
Check that the electrification display A/B/C three-phase indicator light of switch cubicle extinguishes.Now switch cubicle has been in the power-off of high-voltage terminal side, but high voltage bus side is still in electriferous state (hot stand-by duty).
Open handcart mechanism operation valve, advance crank (counterclockwise) that handcart is withdrawn into switch cubicle test position (can send the padlock sound of " card clatter " when handcart arrives test position) with handcart, take out handcart and advance crank and close handcart mechanism operation valve.
Now circuit breaker is in switch cubicle test position, belongs to power failure dormant state (cold standby state).Again can omit the 1st, 2,3 operating procedure of power transmission operation sequence during power transmission.
Three, the operation sequence outside handcart pull-out cabinet:
When circuit breaker cart (or PT handcart, isolation handcart, fuse handcart) needs pull-out cabinet outer, first should complete the institute of power failure operation program in steps.
When needing to carry out earthing closing operation, first should open earthing operation valve, with earthing operating grip (clockwise direction), earthing be closed a floodgate, extract earthing operating grip out and confirm that earthing is in "on" position.(if do not needed earthing closing operation, this operation can not be carried out)
Open front door of switch cabinet (circuit breaker chamber door), pull out the secondary plug of handcart.
5. handcart transfer dolly is placed and assigned address before being locked in switch cubicle; The left and right handle of handcart is inwardly pulled to handle II position simultaneously, and handcart is drawn out on transport carriage, by the left and right handle of handcart simultaneously to being extrapolated to handle I position and transport carriage lockhole positive lock.
6. check that the upper and lower fixed contact protection valve in switch cubicle is in automatic make position, closing switch cabinet Qianmen (circuit breaker chamber door).
Four, high-tension cable room interruption maintenance operation sequence:
1. complete the institute of power failure operation program in steps.
2. open earthing operation valve, with earthing operating grip (clockwise direction), earthing is closed a floodgate, extract earthing operating grip out and confirm that earthing is in "on" position.Now cable outlet side has been in safety ground state.
3. open rear door of switch cabinet (cable chamber door), to detect with high voltage testing device and after all current-carrying parts confirming in cable vault are in power down mode completely, maintainer just can enter high-tension cable room and carry out work.
Five, high voltage bus room interruption maintenance operation sequence:
1. complete the institute of power failure operation program in steps.
2. reaffirm that incoming line cabinet and block switch board breaker handcart have been in test position or the outer isolated location of cabinet, and confirm that inlet wire cable or bus have been in complete power down mode.
3. open back shroud or the top board of high voltage bus room, to detect with high voltage testing device and after all current-carrying parts confirming in bus-bar room are in no-voltage condition completely, maintainer just can enter high voltage bus room and carry out work.
Important hints: when primary system is if any two electric power incoming line switches and a bus connection switch, electric power incoming line cabinet, should have electrical interlocks between incoming line cabinet for subsequent use and bus connection switch cabinet.
(1) when electric power incoming line cabinet (1# incoming line cabinet) or incoming line cabinet for subsequent use (2# incoming line cabinet) put into operation simultaneously,
A. bus connection switch cabinet is forbidden to close a floodgate, and bus connection switch should be in separating brake isolation (test position) state.
B. electric power incoming line cabinet (1# incoming line cabinet) is separately that I section of main bus bar is powered;
C. incoming line cabinet for subsequent use (2# incoming line cabinet) is separately that II section of main bus bar is powered.
(2) electric power incoming line cabinet (or incoming line cabinet for subsequent use) wherein when putting into operation separately, bus connection switch cabinet could close a floodgate.After bus connection switch cabinet closes a floodgate, electric power incoming line cabinet (1# incoming line cabinet) or incoming line cabinet for subsequent use (2# incoming line cabinet) can be that I section and II section of main bus bar are powered simultaneously.
Points for attention:
After each step of operation sequence completes, after must confirming that switch cubicle and handcart parts are in normal condition, just can carry out the procedure operation of next step.Above program in operation, as run into any obstruction, can not operate by force, first should check that whether operation sequence is correct, and checks and after getting rid of other faults, just can proceed operation.
As user or design have a particular/special requirement to control and mode of operation time, should be undertaken controlling and operating by designing requirement.
Switch cubicle power transmission order: metering or bus PT cabinet-incoming line cabinet-outgoing line cabinet; Switch cubicle power failure order: outgoing line cabinet-incoming line cabinet-metering or bus PT cabinet
PT handcart, isolation handcart, fuse handcart can omit the operating procedure of associated ground cutter when carrying out into cabinet or offer for sale and operate.
Closing by hand on circuit breaker cart, opening button and manual energy storing device only use when debugging or overhaul.
6. user is in energising running, should patrol at any time and recording equipment operation conditions, as discovering device anomaly (heating as improper in components and parts or have abnormal voice etc.), and should interruption maintenance in time.
Above operation sequence is the fundamental procedure of high-tension switch cabinet " five prevent " interlocking (also claiming interlocking), and Subscriber Unit also should carry out the operation of relative program in strict accordance with the pertinent regulations of affiliated power supply management department " safety regulation for operations ".
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
Adopt sleeve pipe parcel bus, to reduce between bus insulation distance and bus to the insulation distance of cabinet shell; Adopt the parts such as pressure relief device and lightning arrester, enhance the security performance of high-tension switch cabinet, easy and simple to handle, easy to use, safe and reliable, stability is high.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (1)
1. a high-tension switch cabinet, is characterized in that, described high-tension switch cabinet comprises cabinet, be set in sequence in the Xiamen on described cabinet successively, circuit breaker chamber door and control room's door, be arranged on the control room in described cabinet top, bus-bar room, be arranged on the breaker chamber in described cabinet, power cable room, be arranged on the little bus-bar room above described control room, be arranged on the breaker chamber pressure relief device above described breaker chamber, be arranged on the bus-bar room pressure relief device above described bus-bar room, be arranged on the cable vault's pressure relief device above described power cable room, be arranged on the double-acting door of side in described control room, be arranged on the linear quadratic control plug-in unit interlock bottom described control room, be arranged on the bus-bar room back door in described bus-bar room, be arranged on the main bus bar wrapped up by wall bushing in described bus-bar room back door, the branch bar be connected with described main bus bar, be arranged on the fixed contact bottom described bus-bar room, to match the fixed contact box arranged with described fixed contact, be arranged on the fixed contact box valve interlocking gear on described fixed contact box, be arranged on the handcart type breaker of described breaker chamber side, be arranged on the control cables room backplate on described breaker chamber, be arranged on the earthed switch interlocking gear in bottom described breaker chamber, visit in the cable vault being arranged on described power cable outside, to be visited the Xiamen, cable vault be connected by cable vault's upper-lower door interlock and described cable vault, be arranged on the earth bus bottom described power cable room, be arranged on the mutual device of zero-sequence current on described earthed switch interlocking gear and lightning rod, the earthed switch be connected with described lightning rod, the current transformer be disposed adjacent with described quiet contact head box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420527433.8U CN204190247U (en) | 2014-09-15 | 2014-09-15 | High-tension switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420527433.8U CN204190247U (en) | 2014-09-15 | 2014-09-15 | High-tension switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204190247U true CN204190247U (en) | 2015-03-04 |
Family
ID=52622219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420527433.8U Expired - Fee Related CN204190247U (en) | 2014-09-15 | 2014-09-15 | High-tension switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204190247U (en) |
-
2014
- 2014-09-15 CN CN201420527433.8U patent/CN204190247U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20180915 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |