CN204178965U - The safety interlock system of 10kV ring main unit and off-tube Ore-controlling Role - Google Patents
The safety interlock system of 10kV ring main unit and off-tube Ore-controlling Role Download PDFInfo
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- CN204178965U CN204178965U CN201420239094.3U CN201420239094U CN204178965U CN 204178965 U CN204178965 U CN 204178965U CN 201420239094 U CN201420239094 U CN 201420239094U CN 204178965 U CN204178965 U CN 204178965U
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- 238000012360 testing method Methods 0.000 claims abstract description 17
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- 230000000903 blocking effect Effects 0.000 claims abstract description 11
- 238000012795 verification Methods 0.000 claims abstract description 9
- 230000009471 action Effects 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
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- 239000003990 capacitor Substances 0.000 description 1
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- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
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Abstract
A kind of safety interlock system of 10kV ring main unit and off-tube Ore-controlling Role, described safety interlock system at least comprises in one the ring main unit being provided with high pressure sensor, this ring main unit has grounding switch operating mechanism at least, described high pressure sensor is connected with GYN2 high voltage testing display unit, described grounding switch operating mechanism is provided with GYNS Mechanical ring latch by blocking mechanism, described GYN2 high voltage testing display unit and GYNS Mechanical ring latch be configured with one can carry out electrical verification to GYN2 high voltage testing display unit and and then GYNS Mechanical ring latch is carried out to the computer key of open locking action, described off-tube Ore-controlling Role, it comprises an industrial control host with background manage software, this industrial control host is connected with computer key by a transmission adaptor, and the high voltage display device that industrial control host sets and lock set locking data are one to one transferred to computer key by described transmission adaptor, and by described computer key management and control safety interlock system, it has easy construction, safe and reliable, rational in infrastructure, can improve the features such as ring main unit anti mis-closedown function preferably.
Description
Technical field
The utility model relates to a kind of safety interlock system and off-tube Ore-controlling Role of 10kV ring main unit, belong to electric power pipe network safeguard technology field.
Background technology
Along with the continuous increase in city, city clean and tidy, beautify requirement and constantly promote, urban electric power cable system plays a part very important.In urban electric power cable system general at present, more than 90% is ring main unit, and ring main unit all adopt " hand in hand " and Connection Mode, there is a serious potential safety hazard at normal cut-off switch place in this pattern---namely switch loses locking at hot stand-by duty line side earthing switch blade.For a long time, distribution operation is frequent, and safing main dependence is the constraint with operation order of checking of operation personnel on site switch.When checking offside on off state, there will be the problem that distance is far away, very closely easily misunderstand interval between switch gap and switch gap, easily producing serious pernicious misoperation, i.e. charged zygonema trackside earthing switch blade.
10kV switch cubicle is very important by controller switching equipment.In safe power supply, function that clear stipulaties high-tension switch cabinet must possess " five prevent ", wherein one is exactly " preventing charged co-grounding switch ".Generally, high-tension switch cabinet is by the mutual locking between circuit breaker and grounding switch, reach the object of " preventing charged co-grounding switch " and " preventing line with ground from closing circuit breaker ", this but " charged " be judged whether by circuit breaker point incompatible charged, in double circuit power supply system, when the circuit breaker of feeding switch cabinet is in gate-dividing state, there is anti-power transmission situation, in this case, grounding switch is not blocked, once close grounding switch will cause short trouble. therefore how to prevent anti-power transmission high-voltage board from closing grounding switch, significant to safe power supply.
Through investigation examination, current switchyard mainly uses mechanical lock artificially to control ground connection operating mechanism, and part cabinet solves misconnection earth fault by removing earthing bar.The mode of additional locking box that uses part body solves ground connection operation, and its shortcoming is that overall dimension is bigger than normal, need be attached to outside after destroying former face shield;
(1) traditional mechanical anti-misoperation locking mainly relies in electric equipment travel position and installs mechanical lock additional, completes locking by mechanical driving device.Structure is simple, and function ratio is more single, and switch fault rate is higher, is mainly used in low-voltage distribution system.
(2) traditional electromagnetism anti-misoperation locking is a kind of on-the-spot electrical interlock technology, and the auxiliary contact mainly through relevant device connects, and seals in secondary circuit, realizes locking by calutron.Locking is reliable, and be the most basic form of electric blocking, but need to access a large amount of secondary cable, mode of connection more complicated, operation maintenance is more difficult.Its function is also fewer, generally can only prevent switch, misoperation every cutter and ground cutter, then helpless to the mounting (dismounting) of mistakenly entering charged chamber, earth connection etc.
Utility model content
The purpose of this utility model is the deficiency overcoming prior art existence, and a kind of angle from ensureing operator safety is provided, use existing and the ring main unit basis being provided with charged display device carried out improve, easy construction, safe and reliable, rational in infrastructure, safety interlock system and the off-tube Ore-controlling Role of the 10kV ring main unit of ring main unit anti mis-closedown function can be improved preferably.
The purpose of this utility model has been come by following technical solution, described safety interlock system, which comprises at least in one the ring main unit being provided with high pressure sensor, this ring main unit has grounding switch operating mechanism at least, described high pressure sensor is connected with high voltage testing display unit, described grounding switch operating mechanism is provided with blocking mechanism, and on blocking mechanism, Mechanical ring latch is installed, described high voltage testing display unit and Mechanical ring latch are configured with one accordingly can carry out electrical verification to high voltage testing display unit and and then Mechanical ring latch be carried out to the computer key of open locking action.
Described computer key is built-in with the digital current signal driver that can be connected with the photoisolator in high voltage testing display unit, to drive the unlocking action set in key.
A kind of off-tube Ore-controlling Role for safety interlock system, this system comprises an industrial control host with background manage software, this industrial control host is connected with computer key by a transmission adaptor, and the high voltage display device that industrial control host sets and lock set locking data are one to one transferred to computer key by described transmission adaptor, and by described computer key management and control safety interlock system.
The utility model is mainly from the angle ensureing operator safety, use existing and the ring main unit basis being provided with charged display device has been improved, there is easy construction, safe and reliable, rational in infrastructure, the features such as ring main unit anti mis-closedown function can be improved preferably.
Accompanying drawing explanation
Fig. 1 is structure composition frame chart of the present utility model.
Fig. 2 is basic operation schematic flow sheet described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, detailed introduction is done to the utility model: shown in Fig. 1, the safety interlock system of 10kV ring main unit described in the utility model and off-tube Ore-controlling Role, safety interlock system wherein at least comprises in one the ring main unit 1 being provided with high pressure sensor, this ring main unit 1 has grounding switch operating mechanism at least, described high pressure sensor is connected with high voltage testing display unit 3, described grounding switch operating mechanism 2 is provided with blocking mechanism 4, and Mechanical ring latch 5 is installed on blocking mechanism, described high voltage testing display unit 3 and Mechanical ring latch 5 are configured with one accordingly can carry out electrical verification to high voltage testing display unit 3 and and then Mechanical ring latch 5 be carried out to the computer key 6 of open locking action.
Computer key 6 described in the utility model is built-in with the digital current signal driver that can be connected with the photoisolator in high voltage testing display unit 3, to drive the unlocking action set in key.
The simplest embodiment of the utility model is: be placed in by the key of Mechanical ring latch 5 in the key body of computer key 6, be locked in key body under obtaining electric situation with built-in drive under normal condition at ordinary times, once carry out electrical verification with high voltage testing display unit 3, and no current induced signal, i.e. trig driver work, key is ejected in key body, at this moment just can unblank with the key stretched out outside key body.
The utility model comparatively intelligence embodiment be: by off-tube Ore-controlling Role as shown in Figure 1, this system comprises an industrial control host 8 with background manage software 7, this industrial control host 8 is connected with computer key 6 by a transmission adaptor, and the high voltage display device 3 of setting in industrial control host 8 is transferred to computer key 6 with lock set 5 locking data one to one by described transmission adaptor 9, and by described computer key 6 management and control safety interlock system.
The utility model adopts the technical scheme of " computer key+display electroscopic device+lock set ", this technical scheme is installation high-voltage charged display device on cupboard, grounding switch operating mechanism is pinned with lockset, anti-error computer key electrical verification is coordinated during operation, confirm just to allow to unblank without electricity, realize the mandatory locking of relevant device.
Embodiment:
Principle of the present utility model is: in the charged situation of cable side, first by capacitor voltage divider, from the charged situation in collection high-pressure side, primary circuit, is converted to light current AC signal; Then by AC-DC conversion, the soft signal of telecommunication is converted to standardized digital signal, lights electrification display; Simultaneously by Phototube Coupling, charged situation input computer key driver; Finally judge that circuit is charged by computer key, locking ground connection operating mechanism; And in the case of not charged, driver closes electric-magnetic lock, run ground connection operating mechanism.
As shown in Figure 1, the utility model is primarily of background manage software, transmission adaptor, computer key, high voltage testing display unit, Mechanical ring latch composition.Background manage software can set one-to-one relationship and the latching logic of high voltage display device and lock set, then by the self-study data with corresponding relation, computer key is passed to by transmission adaptor, after this when operating lock set, first computer key can require to carry out electrical verification operation to device, only without just allowing when electricity, unlocking operation is carried out to corresponding interlock in device report, otherwise cannot operate, reach the object of forced blocking.Namely a set of background manage software, transmission adaptor and computer key can manage all ring main unit locking poiut belonging to whole electric company, and electric company can be equipped with the computer key of respective numbers according to the quantity of team of operation class.
Be: one is that live locking logic can be configured by dedicated management software flexible; Two is increase in unlocking operation flow process to force electrical verification operation, and electriferous state includes unlocking operation Logic judgment in; Three is the multiple switching stations of a set of management system ALARA Principle, the plurality of devices such as lockable cabinet door, net door, grounding switch, operating mechanism; Four be a whole set of equipment cashier's office in a shop installed without the need to power supply supply, be particularly suitable in distribution net equipment; Five is that lockset can also with emergency unlocking mechanism in particular cases unblanking.
Application of the present utility model, change in the past traditional operation Medium Voltage Switchgear line side grounding switch mainly by the operator scheme of artificial judgment, the anti-misoperation of transformer station's Medium Voltage Switchgear is guaranteed technically, and effectively prevent the people that may exist in grid switching operation process for misoperation, further ensure that the safety of the person, electrical network, equipment.This Dynamic System is simple, convenient simultaneously, improves the efficiency of operating personnel, and the comprehensive benefit produced by it is apparent.
Installation and adjustment of the present utility model is:
Display unit is installed simple, on cupboard original high voltage display device remove need not, utilize original high pressure sensor in cabinet, signal accessed our display unit.Mechanical ring latch can be loaded on existing blocking mechanism very easily, or install we customization blocking mechanism after hang up mechanical lock again.
After installation, by the self-study data with corresponding relation, pass to computer key by transmission adaptor.When needing unlocking operation, first carry out electrical verification by computer key to device, if there is electricity, computer key can be pointed out " quiescing ", and cannot open corresponding mechanical lock.If without electricity, then can carry out the unlocking operation of cutter accordingly, now, computer key also can judge that whether the coding of mechanical lock is correct, if correctly, lock can be opened, if it is not corresponding to encode, forbid unblanking, thus reach and prevent the misoperation fault of electrical ground cutter from occurring; All operations result can also return to management software, convenient inquiry.
As shown in Figure 2, the content wherein shown in Fig. 2 is also embodiment content of the present utility model to general operating process.
Claims (3)
1. the safety interlock system of a 10kV ring main unit, which comprises at least in one the ring main unit being provided with high pressure sensor, described ring main unit has grounding switch operating mechanism at least, it is characterized in that described high pressure sensor is connected with high voltage testing display unit, described grounding switch operating mechanism is provided with blocking mechanism, and on blocking mechanism, Mechanical ring latch being installed, described high voltage testing display unit and Mechanical ring latch are configured with one accordingly can carry out electrical verification to high voltage testing display unit and and then Mechanical ring latch be carried out to the computer key of open locking action.
2. the safety interlock system of 10kV ring main unit according to claim 1, it is characterized in that described computer key is built-in with the digital current signal driver that can be connected with the photoisolator in high voltage testing display unit, to drive the unlocking action set in key.
3. the off-tube Ore-controlling Role for safety interlock system described in claim 1 or 2, this system comprises an industrial control host with background manage software, it is characterized in that described industrial control host is connected with computer key by a transmission adaptor, and the high voltage display device that industrial control host sets and lock set locking data are one to one transferred to computer key by described transmission adaptor, and by described computer key management and control safety interlock system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239094.3U CN204178965U (en) | 2014-05-12 | 2014-05-12 | The safety interlock system of 10kV ring main unit and off-tube Ore-controlling Role |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239094.3U CN204178965U (en) | 2014-05-12 | 2014-05-12 | The safety interlock system of 10kV ring main unit and off-tube Ore-controlling Role |
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| CN204178965U true CN204178965U (en) | 2015-02-25 |
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| CN201420239094.3U Expired - Fee Related CN204178965U (en) | 2014-05-12 | 2014-05-12 | The safety interlock system of 10kV ring main unit and off-tube Ore-controlling Role |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078254A (en) * | 2014-05-12 | 2014-10-01 | 国家电网公司 | Safety locking device of 10 kV ring main unit and locking control system |
| WO2017130051A1 (en) * | 2016-01-25 | 2017-08-03 | Dubai Electricity And Water Authority | Safety arrangement for a ring main unit |
| GB2550497A (en) * | 2016-01-25 | 2017-11-22 | Dubai Electricity And Water Authority | Safety arrangement for a ring main unit |
| CN108133853A (en) * | 2017-12-08 | 2018-06-08 | 国网浙江宁波市鄞州区供电有限公司 | Novel high-voltage charged display locking device |
| CN111864552A (en) * | 2020-07-03 | 2020-10-30 | 广东电网有限责任公司韶关供电局 | Intelligent control device and system for ring main unit ground knife padlock and ground knife padlock device |
-
2014
- 2014-05-12 CN CN201420239094.3U patent/CN204178965U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078254A (en) * | 2014-05-12 | 2014-10-01 | 国家电网公司 | Safety locking device of 10 kV ring main unit and locking control system |
| WO2017130051A1 (en) * | 2016-01-25 | 2017-08-03 | Dubai Electricity And Water Authority | Safety arrangement for a ring main unit |
| GB2550497A (en) * | 2016-01-25 | 2017-11-22 | Dubai Electricity And Water Authority | Safety arrangement for a ring main unit |
| GB2550497B (en) * | 2016-01-25 | 2022-01-05 | Dubai Electricity And Water Authority | Safety arrangement for a ring main unit |
| CN108133853A (en) * | 2017-12-08 | 2018-06-08 | 国网浙江宁波市鄞州区供电有限公司 | Novel high-voltage charged display locking device |
| CN108133853B (en) * | 2017-12-08 | 2024-04-09 | 国网浙江宁波市鄞州区供电有限公司 | High-voltage electrified display locking device |
| CN111864552A (en) * | 2020-07-03 | 2020-10-30 | 广东电网有限责任公司韶关供电局 | Intelligent control device and system for ring main unit ground knife padlock and ground knife padlock device |
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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: 20150225 Termination date: 20200512 |
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| CF01 | Termination of patent right due to non-payment of annual fee |