CN207052941U - A kind of high-tension switch cabinet counnter attack power transmission splice grafting ground disconnecting link device - Google Patents
A kind of high-tension switch cabinet counnter attack power transmission splice grafting ground disconnecting link device Download PDFInfo
- Publication number
- CN207052941U CN207052941U CN201720942425.3U CN201720942425U CN207052941U CN 207052941 U CN207052941 U CN 207052941U CN 201720942425 U CN201720942425 U CN 201720942425U CN 207052941 U CN207052941 U CN 207052941U
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- CN
- China
- Prior art keywords
- earthing
- power transmission
- switch cabinet
- electromagnet
- tension switch
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- Expired - Fee Related
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Disconnecting link device, in double circuit power supply system, preventing high-tension switch cabinet from closing grounding switch in the case of anti-power transmission the utility model discloses a kind of high-tension switch cabinet counnter attack power transmission splice grafting.The signal input terminal connection of the actuation means of powered the display insulator and switch cubicle of switch cubicle load side, switch cubicle is provided with earthing latching electromagnet, the deadlock lever of earthing latching electromagnet is located under earthing locking valve immediately below corbel back slab, and earthing latching electromagnet is connected by actuation means output relay interface with electromagnet power supply.The present apparatus can both be used as one function of switch cubicle, be synchronously completed in design, manufacturing process；Equipment in use can also be transformed, have a power failure without high pressure and can be carried out transforming, a skilled worker can transform 45 per capita.By the application of the present apparatus, it can prevent the anti-power transmission of high-tension switch cabinet from closing grounding switch by mistake, be effectively prevented from accident, safeguard worker's personal safety and equipment safety.
Description
Technical field
It the utility model is related to a kind of safety device for preventing from closing grounding switch in the case of the anti-power transmission of high-tension switch cabinet.
Background technology
In safe power supply work, clear stipulaties high-tension switch cabinet must possess " five is anti-" function, wherein one is exactly
" preventing charged co-grounding switch ".In general, high-tension switch cabinet passes through mutually closing between breaker and grounding switch
Lock, to realize the purpose of " preventing charged co-grounding switch ", this " powered " is to judge to be by the division state of breaker
It is no powered.But in double circuit power supply system, when the breaker of upper level feeding switch cabinet is in gate-dividing state, its band
Next stage switch cubicle also has powered possibility, anti-power transmission situation be present.In this case, the grounding switch of upper level switch cubicle
It can not be blocked, once closing grounding switch by mistake will result in short trouble, seriously jeopardize personal safety and equipment safety.Cause
How this, prevent high-tension switch cabinet from closing grounding switch in the case of anti-power transmission, significant for safe power supply.
The content of the invention
It is a kind of in double circuit power supply system to provide, prevent high-tension switch cabinet from closing the one of grounding switch in the case of anti-power transmission
Kind safety interlock system, the technical solution adopted in the utility model are as described below.
A kind of high-tension switch cabinet counnter attack power transmission splice grafting ground disconnecting link device, the powered display insulator of switch cubicle load side is with opening
The signal input terminal connection of the actuation means of cabinet is closed,
Switch cubicle is provided with earthing latching electromagnet, and the deadlock lever of earthing latching electromagnet is located at earthing locking work
Immediately below the lower corbel back slab of door, earthing latching electromagnet is connected by actuation means output relay interface with electromagnet power supply.
Disconnecting link device, the switch cubicle load side three-phase are respectively mounted according to described high-tension switch cabinet counnter attack power transmission splice grafting
There is powered display insulator, 27,28, No. 29 terminals of three powered display insulators respectively with actuation means are connected.
Disconnecting link device, the earthing latching electromagnet pass through behaviour according to described high-tension switch cabinet counnter attack power transmission splice grafting
Control device output relay interface is connected with the electromagnet power supply module output end for being depressured conversion.
Disconnecting link device, the earthing latching electromagnet pass through behaviour according to described high-tension switch cabinet counnter attack power transmission splice grafting
31, No. 32 terminals of control device are connected with electromagnet power supply module output end.
Disconnecting link device according to described high-tension switch cabinet counnter attack power transmission splice grafting, when the deadlock lever stretches out locking, locking
Corbel back slab lower end is smaller than 20mm with deadlock lever under rod grounded knife locking valve.
The utility model has the advantages that:
The present apparatus can both be used as one function of switch cubicle, be synchronously completed in design, manufacturing process；Can also to
Equipment is transformed, and is had a power failure without high pressure and be can be carried out transforming, a skilled worker can transform 4-5 platforms per capita.By this dress
The application put, it can prevent the anti-power transmission of high-tension switch cabinet from closing grounding switch by mistake, be effectively prevented from accident, safeguard worker's person
Safety and equipment safety.
Brief description of the drawings
Fig. 1 is the structural representation inside high-tension switch cabinet.
Fig. 2 is the positive structural representation of high-tension switch cabinet.
Fig. 3 is earthing locking electrical schematic diagram.
Fig. 4 is the view that earthing locking valve is blocked.
Fig. 5 is the view that earthing locking valve is not blocked.
In accompanying drawing：1st, corbel back slab under earthing locking valve；2nd, earthing latching electromagnet；3rd, electromagnet power supply module；
4th, earthing operation drive link；5th, powered display insulator；6th, earthing；7th, actuation means.
Embodiment
In the high voltage supply system used at present, because two class above loads use double circuit power supply, therefore it is many high
The phenomenon of anti-power transmission all be present in the cabinet that compresses switch.In 10/6KV switch cubicles, mining area mainly uses KYN switch cubicle types, for existing
Hidden danger, after the type switch cubicle is explored, studies and constantly put into practice, gradually formed following technological innovation scheme.For
Prevent high-tension switch cabinet from closing grounding switch in the case of anti-power transmission, solve background technology the technical problem, technical scheme is such as
Under.
Earthing locking valve as described below and its lower corbel back slab are the conventional setting of high-tension switch cabinet.
Retain outside the locking between original breaker and grounding switch, locking electricity is added at grounding switch handle socket
Magnet, it is controlled using switch cubicle electric control gear.In the case of it anti-power transmission be present in switch cubicle, the powered display insulation of cable side
Son senses high-voltage signal, and signal is fed back to the actuation means 7 of switch cubicle, latching electromagnet is controlled by actuation means 7, with regard to energy
Valve at locking grounding switch jack, effectively prevent that anti-power transmission from closing grounding switch by mistake, further perfect KYN type switch cubicles
" five anti-" function.
With reference to Figure of description, the operation principle of the present apparatus is explained in detail.
As shown in figure 4, current state feeds out for switch, side is powered, and earthing is off, powered display insulator 5
Sense high-voltage signal, signal is fed back into actuation means 7, the output relay interface closure of actuation means 7, controls earthing
Latching electromagnet 2 is powered so that electromagnet deadlock lever is outwards discharged, and corbel back slab 1 under earthing locking valve is lived in locking（Hereinafter referred to as
For " lower corbel back slab "）, lower corbel back slab can not just move downward, and lower corbel back slab blocks earthing locking valve, cannot operational grounding knife close
Close.
As shown in figure 3, the powered display electrified sensor of insulator 5 of A, B, C three-phase of switch cubicle load side senses high pressure
Electric signal, electric signal is input to 7 corresponding 27,28, No. 29 terminals of actuation means, actuation means internal circuit board through signal wire
Electrification in high voltage block signal is exported after electromagnetic isolation, arrangement computing, the electrification in high voltage locking relay of actuation means acts,
31st, the node closure between No. 32 terminals, earthing latching electromagnet 2 and+KM ,-the KM terminal of electromagnet power supply module 3 connect
It is logical.High voltage power supply AC-DC after the decompression of electromagnet power supply module 3 is adjusted, the 2 powered action of earthing latching electromagnet, is closed
Locking bar stretches out.Deadlock lever hinders lower corbel back slab to move down, and such earthing operation locking valve can not be opened, it is possible in switch cubicle just
Often operation, or next stage load is dual power supply and just at work, effectively prevents to miss the accident of splice grafting earthing knife-switch.
It is out of service in switch cubicle, and next stage load for dual power supply also do not work when, this cabinet feed-out cable without
Electricity, the powered display insulator 5 electrified sensor sensing of switch cubicle load side A, B, C three-phase is less than high-voltage signal, actuation means
Relay output end 31, the release of 32# terminal electrification in high voltage locking relay, node between 31,32# terminals disconnects, ground connection
Knife latching electromagnet 2 disconnects with electromagnet power supply module both ends DC220V electric power loops.So, earthing latching electromagnet 2 loses
Electricity, deadlock lever are retracted, and no longer hinder lower corbel back slab motion.Earthing operation locking valve can just be opened.Such as need upkeep operation, so that it may
To open earthing operation locking valve, the action bars of the earthing 6 of Operation switch cabinet, the earthing 6 of switch cubicle is in ground connection
After state, cabinet door unblock, it is possible to open the upkeep operation that cabinet door carries out safety.
Claims (5)
- A kind of 1. high-tension switch cabinet counnter attack power transmission splice grafting ground disconnecting link device, it is characterised in that：The powered display of switch cubicle load side Insulator（5）With the actuation means of switch cubicle（7）Signal input terminal connection,Switch cubicle is provided with earthing latching electromagnet（2）, earthing latching electromagnet（2）Deadlock lever be located at earthing locking Corbel back slab under valve（1）Underface, earthing latching electromagnet（2）Pass through actuation means（7）Output relay interface and electromagnet Power supply connects.
- 2. high-tension switch cabinet counnter attack power transmission splice grafting according to claim 1 ground disconnecting link device, it is characterised in that：The switch Cabinet load side three-phase is mounted on powered display insulator（5）, three powered display insulators（5）Respectively with actuation means（7） 27,28, No. 29 terminals connection.
- 3. high-tension switch cabinet counnter attack power transmission splice grafting according to claim 1 ground disconnecting link device, it is characterised in that：The ground connection Knife latching electromagnet（2）Pass through actuation means（7）Output relay interface and the electromagnet power supply module for being depressured conversion（3） Output end connects.
- 4. high-tension switch cabinet counnter attack power transmission splice grafting according to claim 3 ground disconnecting link device, it is characterised in that：The ground connection Knife latching electromagnet（2）Pass through actuation means（7）31, No. 32 terminals and electromagnet power supply module（3）Output end connects.
- 5. high-tension switch cabinet counnter attack power transmission splice grafting according to claim 1 ground disconnecting link device, it is characterised in that：The locking When bar stretches out locking, corbel back slab under deadlock lever earthing locking valve（1）Lower end is smaller than 20mm with deadlock lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720942425.3U CN207052941U (en) | 2017-07-31 | 2017-07-31 | A kind of high-tension switch cabinet counnter attack power transmission splice grafting ground disconnecting link device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720942425.3U CN207052941U (en) | 2017-07-31 | 2017-07-31 | A kind of high-tension switch cabinet counnter attack power transmission splice grafting ground disconnecting link device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207052941U true CN207052941U (en) | 2018-02-27 |
Family
ID=61498647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720942425.3U Expired - Fee Related CN207052941U (en) | 2017-07-31 | 2017-07-31 | A kind of high-tension switch cabinet counnter attack power transmission splice grafting ground disconnecting link device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207052941U (en) |
-
2017
- 2017-07-31 CN CN201720942425.3U patent/CN207052941U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180227 Termination date: 20180731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |