CN201465766U - On-load tap switch gear transcoder for transformer - Google Patents
On-load tap switch gear transcoder for transformer Download PDFInfo
- Publication number
- CN201465766U CN201465766U CN2009200926334U CN200920092633U CN201465766U CN 201465766 U CN201465766 U CN 201465766U CN 2009200926334 U CN2009200926334 U CN 2009200926334U CN 200920092633 U CN200920092633 U CN 200920092633U CN 201465766 U CN201465766 U CN 201465766U
- Authority
- CN
- China
- Prior art keywords
- gear
- relay
- group
- transcoder
- transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses an on-load tap switch gear transcoder for a transformer, wherein, the A1 end of the coil group A of a relay is connected with gear input ends W1-W10, the moving point 1 of W1-W7 group A of the relay and the A2 end of the coil are connected with a cathode, the A1 end of the coil group B of the relay is connected with three contacts of the group A respectively, the A2 end of the coil group B is connected with W18 and the anode of a power supply, six ends of the stationary contacts of W1-W7 group A of the relay are connected with one end of the moving contacts of W11-W17 group B of the relay, two ends of the stationary contacts of W11-W17 group B of the relay are connected respectively with the output ends W1-W7, the gear output ends W8-W17 are connected respectively with sixe end contacts of W8-W17 of the relay group, and four ends of W1-W17 of the relay group are connected with a common end W20. The utility model is capable of converting denary gear information into one-to-one corresponding gear information identifiable to a main converter measurement and control system, thereby reducing cooperation during the commissioning process. The utility model is simple in structure and low in cost, and is convenient to install.
Description
Technical field
The utility model relates to switch gear conversion Display Technique field, is particularly useful for a kind of on-load tap changers of transformers gear transcoder that transformer decimal system on load tap changer gear shows.
Background technology
At present, along with the development of electric utility, on-load tap-changing transformer is more and more, and it plays the contact electrical network, regulates reactive power flow, and the positive role of steady load center voltage is subjected to user's welcome.Along with the increase of on-load tap-changing transformer, on load tap changer has also obtained extensive use.On load tap changer is used for changing the secondary output voltage by the conversion transformer number of turn under the continual situation of secondary load.According to different electric pressures, Transformer Winding is drawn corresponding tap, is connected on the selector of shunting switch, selects by diverter switch.And carry out once complete pressure regulation, then need a series of links reasonably to mate.
Along with the foundation of unattended substation, make scheduling station and centralized control center more and more important to the supervision of main transformer device parted hair gear.Just requiring a kind of novel on-load voltage regulation gear control transmitter to replace charactron shows, to finish the gear ascending, descending Regulation Control of main transformer on load tap changer, the pressure regulation numeration, gear positions converts aanalogvoltage automatically to, switching signal, multiple function such as binary-coded decimal supplies telemechanical apparatus or the remote signalling of comprehensive automation device, telemetry and telecommand.
In integrated automation converting station and unattended transformation transformer station, for the on-load tap-changing transformer gear show on the supervisory control system backstage and on the VQC device have at present following several:
1, a grade mode is declared in remote signalling one to one, for transformer on-load voltage regulating gear secondary contact being inserted supervisory control system simply or the remote signalling of VQC device is opened into point.Advantage is directly perceived, but shortcoming is very obvious, promptly takies more remote signalling resource, and required cable core number is many.
2, ten add a position mode, and in order to remedy the shortcoming of first kind of mode, the transformer on-load voltage regulating mechanism that has provides ten shelves contacts, and when main transformer gear during at 1～9 grade, ten shelves contacts disconnect, in the time of 10～19 grades, and ten shelves contactings.Supervisory control system or VQC device insert remote signalling with individual position shelves with ten shelves contacts and open entry loop, can calculate the transformer actual-gear by simple operation.This kind mode can reduce nearly half cable core number and remote signalling resource occupation.Shortcoming is when on-load voltage regulation mechanism gear secondary contact is not enough, still need install switching value boxcar expansion contact additional.
3, BCD coded system, in order further to reduce resource occupation, the transformer on-load voltage regulating mechanism that has provides the output of BCD coding, and promptly the transformer gear is according to the BCD coding rule, reflected jointly by the state of 5 output contacts.Supervisory control system or VQC device are opened entry loop with the BCD contact access remote signalling of main transformer gear, reduce to calculate according to the BCD coding rule and can calculate the transformer actual-gear.For high tap position is 19 transformer, only needs the cable of one 6 core with the supervisory control system interface, takies 5 remote signalling resources and gets final product.
Declare in the mode of shelves in remote signalling, this mode is simple economy the most, need provide the output of BCD coding but precondition is a transformer on-load voltage regulating mechanism.
4, grade mode of declaring of remote measurement electric resistance partial pressure has simple, the economic advantage of wiring, this kind mode all only needs three-core cable, because in the pressure regulation transient process, the gear tap voltage is unsettled in short-term, if supervisory control system captures the variation remote measurement of tap voltage at this moment, will show that the gear value is unusual.
5, the electric current loop of remote measurement 4～20mA is declared a grade mode to have a wiring the most simple and reliable, take the minimum advantage of resource. no matter how many high tap positions of main transformer is, this kind mode all only needs two core cable, and only need take telemetry station of supervisory control system. but being transformer on-load voltage regulating mechanism, precondition need provide the output of 4～20mA electric current loop.
The advantage of such scheme is that data are directly perceived; the user shows by the LED numeral just can learn the gear of on-load voltage regulation mechanism easily; shortcoming is under the situation that complex automatic system is simple towards wiring now, cost reduces, practical reliable direction develops; must be in perforate on the relaying protection observing and controlling screen, the outsourcing gear shows transmitter.
Summary of the invention
In order in the comprehensive automation engineering, to cooperatively interact, the decimal system gear output that solves the 110KV on-load tap changers of transformers can not output to the technical problem of main transformer measure and control device by transmitter, and the utility model provides a kind of on-load tap changers of transformers gear transcoder; Can be with the decimal system gear information of transformer on-load voltage regulating shunting switch, be converted to the main transformer TT﹠C system can identification gear information.Reduce the cooperation in the debug process, reduce the cost of outsourcing, its structural design is simple, and cost is low, and is easy for installation, good reliability.
For achieving the above object, the utility model adopts following technical scheme:
Described on-load tap changers of transformers gear transcoder, comprise: relay group, gear input, gear output, gear show public end, ten ends of gear and power supply, each loop A 1 end of relay A group W1 to W10 connects gear input W1 to W10 respectively, and the A2 end of each coil connects dc power cathode; Movable contact W1-1 to the W7-1 end of relay A group W1 to W7 is the electric connection of power supply negative pole respectively; Relay B organizes W1-3 to the W7-3 contact that each loop A 1 end connects relay A group position respectively, and the A2 end of B group coil connects ten ends of gear W18, connects positive source; The movable contact W11-1 to W17-1 that break W1-6 to the W7-6 end of relay A group W1 to W7 is electrically connected relay B group W11 to W17 respectively holds; Break W11-2 to the W17-2 end of relay B group W11 to W17 connects gear output W1 to W7 respectively; Gear output W8 to W17 connects W8-6 to the W17-6 tip node of relay group W8 to W17 respectively; W1-4 to the W17-4 end movable contact of relay group W1 to W17 is electrically connected gear and shows public end W19.
Owing to adopt aforesaid technical scheme, the utlity model has following superiority:
This a kind of on-load tap changers of transformers gear transcoder, be to insert measure and control device after adopting a simple code system boxcar with conversion of signals, this transcoder makes the original gear information of transformer export through the on-load tap changer motor drive mechanism, through the gear information that the transformer on-load voltage regulating tapping switch electric can be exported after the conversion, conversion becomes the gear information by the energy identification of main transformer observing and controlling complex automatic system institute, thereby the realization gear directly shows on measure and control device.The advantage of this scheme is: not only can reduce the cost of outsourcing, not be used in relaying protection observing and controlling screen and go up perforate, and make structural design simpler, and easy for installation.And reduced the cooperation in the debug process etc.
This transcoder is applicable to that 110KV has the equipment complex automatic improving that carries transformer decimal system gear shunting switch.Its structural design is simple, and cost is low, and is easy for installation, and selected components and parts are relay, do not have the diode breakdown problem, and reliability is stronger.
Description of drawings
Fig. 1 is an on-load tap-changer of transformer gear circuit diagram;
Fig. 2 is a gear transcoder circuit diagram;
Fig. 3 inserts the measuring and controlling equipment connection layout for the output of gear transcoder.
Embodiment
As shown in Figure 1, 2, 3: this a kind of on-load tap changers of transformers gear transcoder, can will the gear number that carry transformer decimal system shunting switch be arranged, i.e. gear pressure regulation signal is converted to pressure regulation signal one to one by transcoder ZMQ.Make the gear conversion of on-load tap changers of transformers send display, measure and control device FCK-801 or monitoring backstage to show by change.
This transcoder, comprise: relay group, gear input, gear output, gear show public end, ten ends of gear and power supply, each loop A 1 end of relay A group W1 to W10 connects gear input W1 to W10 respectively, and the A2 end of each coil connects dc power cathode; Movable contact W1-1 to the W7-1 end of relay A group W1 to W7 is the electric connection of power supply negative pole respectively; Relay B organizes W1-3 to the W7-3 contact that each loop A 1 end connects relay A group position respectively, and the A2 end of relay B group coil connects ten ends of gear W18, connects positive source.The movable contact W11-1 to W17-1 that break W1-6 to the W7-6 end of relay A group W1 to W7 is electrically connected relay B group W11 to W17 respectively holds; Break W11-2 to the W17-2 end of relay B group W11 to W17 connects gear output W1 to W7 respectively; Gear output W8 to W17 connects W8-6 to the W17-6 tip node of relay group W8 to W17 respectively; W1-4 to the W17-4 end movable contact of relay group W1 to W17 is electrically connected gear and shows public end W20.
During use, 1～10 grade of gear input W1～W10 that connects transcoder by the positive level of W19 power supply 110V by K switch 1 of decimal system pressure regulating device case actual-gear for 17 grades of transformer on-load voltage regulating gear outputs, ten ends of pressure regulating device gear box connect ten end W18 of transcoder, the W20 of transcoder shows public end for the gear that the gear common port connects measure and control device, and the gear output W11 to W17 of transcoder connects measure and control device input one to one respectively.Relay group W1 to W17 adopts 17 two-position relay that model is GZ-L002DC220V, and every relay has two docking points, and contact was not all on open position when coil was charged.
During work: transcoder is connected DC power supply and is got final product work, when the coil input high level, and coil magnetization action, the junction closure of often opening.
I. transcoder is exported the signal of a gear pressure regulation one to one position shelves W1-W7, illustrates with 1 grade:
When transformer is loaded with on-load shunting switch and is input as gear 1-7, relay W1-W7 respective notch loop A 1 is input as high level, W1-4 contact and the conducting of W1-6 contact, this moment, gear 18 did not have the high potential input, the W11 relay does not have excitation, therefore relay W11 contact does not have displacement, so the correspondence output of gear 1 is formed in the W11-1 of the W1-4 of relay W1 and W1-6 contact conduction position and relay W11 and the conducting of W11-2 contact jointly.Same other position shelves W2-W7 is same as above.
II. transcoder is exported the signal of a gear pressure regulation one to one position shelves W8-W10, illustrates with 8 grades:
When on-load tap changers of transformers was input as gear 8, relay W8 respective notch was input as high level, position 2 conductings of 2 docking points of relay W8, and gear is exported 8 gear level by W8-4 contact and the conducting of W8-6 position.Same other position shelves W9-W10 is same as above.
III. transcoder is exported ten shelves W11-W17 of the signal of gear pressure regulation one to one, illustrates with 11 grades:
When on-load tap changers of transformers is output as gear 11, ten end W18 positively chargeds, gear input W1 gear positively charged position.Corresponding loop A 1 gear of relay W1 is input as high level, the W1 working excitation, W1-1 and W1-3 conducting, the loop A 1 of W11 is electronegative, this moment, ten ends gear 18 had the positive electricity input, the junction closure of W11 correspondence, W11-1 and W11-2 connecting point position disconnect, the contact conducting of W11 relay W11-4 and W11-6.In the W11 actuating of relay W1 is disconnected through W11-1 and the W11-2 normally closed contact of W11, gear output W1 does not just have output like this, has only gear W11 to export, thereby forms respective notch output one by one.Same other ten shelves W12-W17 are same as above.
This a kind of on-load tap changers of transformers gear transcoder, be used for gear and directly reach long-range demonstration at the scene: be electrically connected the gear change by the transformer on-load voltage regulating mechanism case by gear transcoder ZMQ and send display, make the signal of pressure regulation one to one of conversion send display by change, directly demonstrate used gear at the scene, the measure and control device FCK-801 that connects that gear transcoder ZMQ is electrically connected shows and monitoring by the supervisory control system of sending the monitoring backstage on cable or the network.The pressure regulation of the gear one to one signal W1 to W17 of described transcoder ZMQ output, with the corresponding electrical connection of Fn-H1-1 to Fn-H1-17 on the measure and control device FCK-801, electric connection terminal is respectively FD2 to FD18, and the public end W20 of transcoder ZMQ is electrically connected with Fn-H1-20 on the measure and control device FCK-801.
This a kind of on-load tap changers of transformers gear transcoder, also can be independent directly show at the scene connects the gear transmitter by the transformer on-load voltage regulating mechanism case by the gear transcoder.Or independent long-range demonstration is monitored the backstage by the transformer on-load voltage regulating mechanism case by sending on the gear transcoder electrical connection measure and control device FCK-801.
Claims (2)
1. on-load tap changers of transformers gear transcoder, it is characterized in that: comprising: relay group, gear input, gear output, gear show public end, ten ends of gear and power supply, each loop A 1 end of relay A group W1 to W10 connects gear input W1 to W10 respectively, and the A2 end of each coil connects dc power cathode; Movable contact W1-1 to the W7-1 end of relay A group W1 to W7 is the electric connection of power supply negative pole respectively; Relay B organizes W1-3 to the W7-3 contact that each loop A 1 end connects relay A group position respectively, and the A2 end of B group coil connects ten ends of gear W18, connects positive source; The movable contact W11-1 to W17-1 that break W1-6 to the W7-6 end of relay A group W1 to W7 is electrically connected relay B group W11 to W17 respectively holds; Break W11-2 to the W17-2 end of relay B group W11 to W17 connects gear output W1 to W7 respectively; Gear output W8 to W17 connects W8-6 to the W17-6 tip node of relay group W8 to W17 respectively; W1-4 to the W17-4 end movable contact of relay group W1 to W17 is electrically connected gear and shows public end W20.
2. on-load tap changers of transformers gear transcoder according to claim 1 is characterized in that: relay is a two-position relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200926334U CN201465766U (en) | 2009-08-17 | 2009-08-17 | On-load tap switch gear transcoder for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200926334U CN201465766U (en) | 2009-08-17 | 2009-08-17 | On-load tap switch gear transcoder for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201465766U true CN201465766U (en) | 2010-05-12 |
Family
ID=42393114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200926334U Expired - Fee Related CN201465766U (en) | 2009-08-17 | 2009-08-17 | On-load tap switch gear transcoder for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201465766U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103400715A (en) * | 2013-08-08 | 2013-11-20 | 贵州长征电力设备有限公司 | Multi-gear position signal transmission device |
| CN109931962A (en) * | 2019-04-02 | 2019-06-25 | 河北旭辉电气股份有限公司 | Magnetic inductive non-contact type loaded switch gear readback device |
| CN112421776A (en) * | 2020-11-02 | 2021-02-26 | 北京四方继保工程技术有限公司 | Method for synthesizing remote signaling gears of variable-input-quantity transformer and module thereof |
-
2009
- 2009-08-17 CN CN2009200926334U patent/CN201465766U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103400715A (en) * | 2013-08-08 | 2013-11-20 | 贵州长征电力设备有限公司 | Multi-gear position signal transmission device |
| CN103400715B (en) * | 2013-08-08 | 2015-09-30 | 贵州长征电气有限公司 | Many gear positions device for signalling |
| CN109931962A (en) * | 2019-04-02 | 2019-06-25 | 河北旭辉电气股份有限公司 | Magnetic inductive non-contact type loaded switch gear readback device |
| CN109931962B (en) * | 2019-04-02 | 2024-01-26 | 河北旭辉电气股份有限公司 | Magnetic induction type non-contact on-load switch gear position readback device |
| CN112421776A (en) * | 2020-11-02 | 2021-02-26 | 北京四方继保工程技术有限公司 | Method for synthesizing remote signaling gears of variable-input-quantity transformer and module thereof |
| CN112421776B (en) * | 2020-11-02 | 2023-08-15 | 北京四方继保工程技术有限公司 | Transformer remote signaling gear synthesis method with variable switching quantity and module thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201465766U (en) | On-load tap switch gear transcoder for transformer | |
| CN101694808B (en) | Transcoding method for denary shift of transformer on-load tap-changer and transcoder | |
| CN114899033A (en) | Miniaturized degree of depth once and twice fuses circuit breaker on post | |
| CN110333410B (en) | Spare power automatic switching testing device | |
| CN102856137A (en) | Low-voltage intelligent double-power-source change-over switch | |
| CN108736360A (en) | A kind of integration loaded capacity regulating voltage regulating power distribution station | |
| CN210041332U (en) | LORA-based on-load voltage regulation device | |
| CN202816840U (en) | Low voltage intelligent double power source change-over switch | |
| CN208636396U (en) | Feeder switch operating condition adaptive modeling device | |
| CN201781316U (en) | Dual power automatic switching system | |
| CN101986222A (en) | Multichannel load time program control device | |
| CN101814772A (en) | Intelligent high-voltage electric switch device | |
| CN201754527U (en) | Intelligent high-voltage electric switch device | |
| CN102576485A (en) | Load sensing high efficiency transformer assembly | |
| CN113890047B (en) | Intelligent dynamic voltage regulation compensation method and device for communication base station | |
| CN201000672Y (en) | Low voltage intelligent feed line module based on novel carrier communication | |
| CN203490061U (en) | Online monitoring device for mechanical properties | |
| CN214674361U (en) | Dynamic voltage regulation compensation circuit | |
| CN216672603U (en) | Smart power grids trouble self-healing control system | |
| CN204882757U (en) | Distribution network automation electric power instrument | |
| CN213279134U (en) | Relay protection device | |
| CN217931995U (en) | Remote electric leakage test system | |
| CN201435299Y (en) | Mining flameproof on-load voltage regulation dry-type transformer | |
| CN220066968U (en) | Four-incoming-line one-connection interlocking power distribution system | |
| CN116599032B (en) | Two-inlet-wire two-bus-connection electric control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20100817 |