CN202363879U - Overload automatic locking on-load voltage regulation controller - Google Patents
Overload automatic locking on-load voltage regulation controller Download PDFInfo
- Publication number
- CN202363879U CN202363879U CN 201120459276 CN201120459276U CN202363879U CN 202363879 U CN202363879 U CN 202363879U CN 201120459276 CN201120459276 CN 201120459276 CN 201120459276 U CN201120459276 U CN 201120459276U CN 202363879 U CN202363879 U CN 202363879U
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- CN
- China
- Prior art keywords
- load voltage
- voltage regulation
- regulation controller
- main transformer
- controller
- 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
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Abstract
The utility model discloses an overload automatic locking on-load voltage regulation controller which is mainly characterized in that an intermediate relay or a contact type relay is connected in series between an on-load voltage regulation controller and a power circuit; the intermediate relay or the contact type relay is connected with an on-load regulation locking contact of a main transformer microcomputer protecting device. With the adoption of the regulation controller, the man-made main transformer shift operation, which is carried out when the transformer is overloaded, can be effectively prevented, and the safety of an electricity transmission and distribution system is guaranteed; moreover, the wiring of the regulation controller is simple, the regulation controller is convenient to mount and use, and the performance is reliable.
Description
Technical field
The utility model belongs to the electric equipment protection technical field, particularly a kind of overload automatic blocking on-load voltage regulation controller.
Background technology
Main transformer is the most crucial primary equipment of transformer station, and transforming plant main transformer depressor safe, reliably most important directly has influence on the safe operation of transformer station.The safe and stable operation of transforming plant main transformer depressor, not only relevant with each side such as design of transformer, manufacturing, installation, debugging, operation and maintenances, and confidential relation is also arranged with safeguard measure complete.At present; In order to improve quality of voltage, make transformer that a stable output voltage can be arranged, normally realize pressure regulation through the position that changes a winding shunting tap; The device of connection and switching branch joint position is shunting switch; It is to adjust variation through the number of turn that changes Transformer Winding, promptly changes voltage through the adjustment no-load voltage ratio, carries out the adjustment of voltage.Power transformer all has tap changer usually, and the on-load voltage regulation controller is exactly that main transformer is carried out the main device that gear is regulated.In the process that comprehensive automation is transformed, most main transformers have increased main transformer differential protection and height backup protection, have eliminated original high voltage load switch, undergo technological transformation.In transformation process for overload locking on-load voltage regulation; Existing overload locking on-load voltage regulation outlet is normally closed contact; This contact is connected in series to remote control pressure regulation common port loop; When the main transformer overload, on-load voltage regulation locking normally closed contact is opened, and makes the consistency operation personnel under the overladen situation of transformer, carry out main transformer through the backstage and transfers the files.Though such scheme is feasible, in the transformer station of few people on duty, the manual operation on-load voltage regulation controller shelves that still can manually go up and down, locking does not just have effect, and misoperation at this moment just possibly cause the excessive tap that causes of electric current to burn.
The utility model content
The purpose of the utility model is to provide a kind of and can prevents effectively under the overladen situation of transformer
Carry out the operation of transferring the files of artificial main transformer, guarantee the overload automatic blocking on-load voltage regulation controller of power transmission and distribution system safety.
The technical scheme that purpose adopted that realizes the utility model is: a kind of overload automatic blocking on-load voltage regulation controller; Include voltage adjustment of on-load controller and main transformer microcomputer protecting device; Between on-load voltage regulation controller and power circuit, be serially connected with an auxiliary relay or contact relay, this auxiliary relay or contact relay are connected with the on-load voltage regulation locking contact of main transformer microcomputer protecting device.
The overload automatic blocking on-load voltage regulation controller of the utility model through installing auxiliary relay or contact relay additional, makes when the main transformer overload; On-load voltage regulation locking contact is opened, and this moment, the auxiliary relay contact was back to normally open, and cutting off has the set controller power supply; Thereby the load tapchanging purpose of effective locking when reaching the main transformer overload; Prevent under the overladen situation of transformer, to carry out the operation of transferring the files of artificial main transformer effectively, guarantee the power transmission and distribution system safety, and this voltage regulator controllers wiring is simple; Easy to install, dependable performance.
Description of drawings
Fig. 1 is the line principle sketch map of the utility model.
Embodiment
Referring to Fig. 1; The overload automatic blocking on-load voltage regulation controller of the utility model; Be on-load voltage regulation controller 1 with two power firestreaks 5, be connected in series an auxiliary relay or contact relay 3 between 6, this auxiliary relay or contact relay 3 are connected with the on-load voltage regulation locking contact 2 of main transformer microcomputer protecting device.Like this, when the main transformer overload, on-load voltage regulation locking contact 2 is opened, and this moment, the contact of auxiliary relay or contact relay 3 was back to normally open, cut off the power supply of on-load voltage regulation controller 1.And; Control the power supply of on-load voltage regulation controller 1 through auxiliary relay or contact relay 3; Realize under the overladen situation locking on-load voltage regulation controller 1 effectively surely with regard to one, make under the overladen situation of main transformer 1 short time of on-load voltage regulation controller dead electricity; This moment remote operation still on the spot manual operation all can't carry out the main transformer gear and regulate the load tapchanging purpose of effective locking in the time of therefore can reaching the main transformer overload.
Claims (1)
1. overload automatic blocking on-load voltage regulation controller; Include voltage adjustment of on-load controller and main transformer microcomputer protecting device; It is characterized in that: it is between on-load voltage regulation controller and power circuit, to be serially connected with an auxiliary relay or contact relay, and this auxiliary relay or contact relay are connected with the on-load voltage regulation locking contact of main transformer microcomputer protecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120459276 CN202363879U (en) | 2011-11-18 | 2011-11-18 | Overload automatic locking on-load voltage regulation controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120459276 CN202363879U (en) | 2011-11-18 | 2011-11-18 | Overload automatic locking on-load voltage regulation controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202363879U true CN202363879U (en) | 2012-08-01 |
Family
ID=46575035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120459276 Expired - Fee Related CN202363879U (en) | 2011-11-18 | 2011-11-18 | Overload automatic locking on-load voltage regulation controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202363879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869935A (en) * | 2016-06-22 | 2016-08-17 | 国网四川省电力公司成都供电公司 | Automatic overcurrent-blocking and on-load voltage regulation switching method and automatic overcurrent-blocking and on-load voltage regulation switching device of transformer |
-
2011
- 2011-11-18 CN CN 201120459276 patent/CN202363879U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869935A (en) * | 2016-06-22 | 2016-08-17 | 国网四川省电力公司成都供电公司 | Automatic overcurrent-blocking and on-load voltage regulation switching method and automatic overcurrent-blocking and on-load voltage regulation switching device of transformer |
| CN105869935B (en) * | 2016-06-22 | 2017-11-10 | 国网四川省电力公司成都供电公司 | A kind of transformer overcurrent locking on-load voltage regulation automatic switching method and device |
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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: 20120801 Termination date: 20121118 |