CN202837447U - Distribution and transformation tap position detector and distribution and transformation tap position detecting system - Google Patents
Distribution and transformation tap position detector and distribution and transformation tap position detecting system Download PDFInfo
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- CN202837447U CN202837447U CN 201220556073 CN201220556073U CN202837447U CN 202837447 U CN202837447 U CN 202837447U CN 201220556073 CN201220556073 CN 201220556073 CN 201220556073 U CN201220556073 U CN 201220556073U CN 202837447 U CN202837447 U CN 202837447U
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- 238000001514 detection method Methods 0.000 claims description 16
- 238000012360 testing method Methods 0.000 claims description 10
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
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Abstract
The utility model discloses a distribution and transformation tap position detector which is mainly formed by mutually coupling and electrically connecting a tap winding coil resistance value detecting circuit portion with a distribution and transformation terminal 485 data communication portion. The utility model further discloses a distribution and transformation tap position detecting system which puts forward data interaction between the distribution and transformation tap position detector and a distribution and transformation terminal, so that a function of remote real-time monitoring of the transformer tap position states is realized. The utility model provides a detecting method based on the distribution and transformation tap position detecting system, and the detecting method is capable of acquiring and displaying the transformer tap position states and resistance values in real time and uploading the same to a terminal system. By the aid of the detector and the detecting system, remote real-time monitoring of the in-situ transformer tap position states is achieved, abnormality warning is generated immediately when the in-situ transformer tap position states are discovered to be abnormal, and engineering staff is informed of in-situ overhaul. Additionally, safety accidents caused by abnormalities of the tap position are avoided.
Description
Technical field
The utility model relates to electrical network Allocation transformer technology, more particular words it, the utility model relates to a kind of distribution transforming tap gear detector and detection method thereof.
Background technology
Main transformer in substation generally adopts autotransformer in the electrical network, when electric substation depart from major network, when load is larger, low-pressure side voltage is very low among the electric substation, the quality of power supply is difficult to guarantee.So for the operation voltage level that improves electrical network makes transformer a specified output voltage can be arranged, great majority be by the position that changes the primary winding shunting tap namely change the transformer coil access the number of turn what, change the output end voltage of transformer.In the three-phase coil of transformer primary side, draw several taps according to the different numbers of turn, these several taps are connected on the shunting switch according to certain mode of connection.There is a contact that can rotate at the center of switch, and when transformer need to be adjusted voltage, the position that changes shunting switch had just changed the transformation ratio of transformer, thereby changes the output voltage of transformer, makes it to satisfy the demand.The range state of load tap changer can only indicate to check by on-the-spot tap changer gear at present.
The utility model content
The utility model is intended to solve the defective that prior art exists, and designs a kind of distribution transforming tap gear detector and detection system, realizes the Real Time Monitoring to load tap changer gear resistance, need not site disposal.
In order to realize above-mentioned purpose of design, the technical solution of the utility model 1 designs a kind of distribution transforming tap gear detector, and it mainly partly intercouples to be electrically connected by tap winding coil resistance value testing circuit part with distribution transformer terminals 485 data communications and forms.
In order to realize above-mentioned purpose of design, the technical solution of the utility model 2, design a kind of distribution transforming tap gear detection system, propose distribution transforming tap gear detector and distribution transformer terminals are carried out data interaction, and then realized the function of remote real time monitoring load tap changer range state.
In order to realize above-mentioned purpose of design, design proposal 3 of the present utility model based on aforementioned distribution transforming tap gear detection system, proposes a kind of detection method, can carry out Real-time Obtaining and demonstration and be uploaded to terminal system load tap changer state and resistance.
The technical solution of the utility model 1: a kind of distribution transforming tap gear detector, it comprises working power input end and resistance collection terminal, further comprise cpu controller, resistance testing circuit and RS485 data communication end, described resistance collection terminal is connected to cpu controller by the resistance testing circuit, described cpu controller sends to an external unit with data message by RS485 data communication end, and line of electric force cut-in operation power input also is converted to cpu controller and operating voltage that RS485 data communication end is required.
Further, in preferred embodiment of the present utility model, comprise a liquid crystal display that is connected to described cpu controller, be used for showing load tap changer gear resistance numerical value every a preset time period ground.
The technical solution of the utility model 2: a kind of distribution transforming tap gear detection system, it comprises foregoing distribution transforming tap gear detector, further comprise distribution transformer terminals opertaing device and remote monitoring alarm equipment, described distribution transforming tap gear detector sends data message to a controller of distribution transformer terminals opertaing device by its RS485 data communication end, described controller draws the gear ranked data after these data messages are processed, and passes through distribution transformer terminals telecommunication channel transfer to the remote monitoring alarm equipment.
The technical solution of the utility model 3: a kind of distribution transforming tap gear detection method comprises step: 1) by a resistance testing circuit Transformer Winding resistance is detected, and the resistance detection signal is sent to a cpu controller; 2) described cpu controller carries out reception ﹠ disposal to the resistance detection signal and draws the resistance data, and is transferred to the distribution transformer terminals opertaing device by RS485 data communication end; 3) by a controller to the resistance data analysis and carry out the gear classification and draw the gear data, and send to the power information acquisition system of remote monitoring alarm equipment by a distribution transformer terminals telecommunication passage; 4) described power information acquisition system is carried out Real-Time Monitoring to the gear data, sends alarm signal simultaneously when gear is unusual.
The beneficial effects of the utility model are apparent, and the utility model has been filled up the blank that the load tap changer gear detects, and is the innovation to transformer real-time gear state inspection.By use of the present utility model, solved (1) load tap changer range state and detected in real time; (2) the current range state of long-range main website Real-Time Monitoring load tap changer.
Beneficial effect behind employing the utility model: (1) has realized the real-time remote monitoring of on-the-spot load tap changer range state.(2) when finding that on-the-spot load tap changer range state is unusual, at once produce abnormality alarming, notify the engineering staff to carry out site examining and repairing.Avoided the security incident that causes because of tap gear abnormal problem.
Description of drawings
Preferred implementation of the present utility model will be following by embodying with reference to the mode of accompanying drawing in detail, and the identical function components/modules among the figure is with same-sign mark in addition, wherein
Fig. 1 is the structure principle chart of the utility model distribution transforming tap gear detector;
Fig. 2 is structure and the testing process schematic diagram of the utility model distribution transforming tap gear detection system.
Embodiment
Embodiment 1:
With reference to Fig. 1, the preferred embodiment of the utility model distribution transforming tap gear detector 1 comprises working power input end 11 and resistance collection terminal 12, further comprise cpu controller 13, resistance testing circuit 14 and RS485 data communication end 15, described resistance collection terminal 12 is connected to cpu controller 13 by resistance testing circuit 14, described cpu controller 13 sends to an external unit with data message by RS485 data communication end 15, and line of electric force cut-in operation power input 11 also is converted to cpu controller 13 and operating voltage that 485 data communication ends 15 are required.
Further, in preferred embodiment of the present utility model, comprise a liquid crystal display 10 that is connected to described cpu controller 13, be used for showing load tap changer gear resistance numerical value every a preset time period ground.
Embodiment 2:
With reference to Fig. 2, the preferred embodiment of the utility model distribution transforming tap gear detection system has comprised foregoing distribution transforming tap gear detector 1, further comprise distribution transformer terminals opertaing device 2 and remote monitoring alarm equipment 3, described distribution transforming tap gear detector 1 sends data message to a controller 21 of distribution transformer terminals opertaing device 2 by its RS485 data communication end 15, described controller 21 draws the gear ranked data after these data messages are processed, and is transferred to remote monitoring alarm equipment 3 by distribution transformer terminals telecommunication passage 22.
Embodiment 3:
A kind of distribution transforming tap gear detection method comprises step:
1) detects by 14 pairs of Transformer Winding resistances of a resistance testing circuit, and the resistance detection signal is sent to a cpu controller 13;
2) 13 pairs of resistance detection signals of described cpu controller carry out reception ﹠ disposal and draw the resistance data, and are transferred to distribution transformer terminals opertaing device 2 by RS485 data communication end 15;
3) by 21 pairs of resistance data analyses of a controller and carry out the gear classification and draw the gear data, and send to the power information acquisition system 31 of remote monitoring alarm equipment 3 by a distribution transformer terminals telecommunication passage 22;
4) 31 pairs of gear data of described power information acquisition system are carried out Real-Time Monitoring, send alarm signal simultaneously when gear is unusual.
Being preferred implementation of the present utility model only below, being intended to embody outstanding technique effect of the present utility model and advantage, is not to be restriction to the technical solution of the utility model.Those skilled in the art will appreciate that all modifications of having done based on the utility model technology contents, variation or substitute technology feature, all should be covered by in the technology category of the utility model claims opinion.
Claims (3)
1. distribution transforming tap gear detector, it comprises working power input end (11) and resistance collection terminal (12), it is characterized in that: further comprise cpu controller (13), resistance testing circuit (14) and RS485 data communication end (15), described resistance collection terminal (12) is connected to cpu controller (13) by resistance testing circuit (14), described cpu controller (13) sends to an external unit with data message by RS485 data communication end (15), and line of electric force cut-in operation power input (11) also is converted to cpu controller (13) and the required operating voltage of RS485 data communication end (15).
2. distribution transforming tap gear detector as claimed in claim 1, it is characterized in that: further comprise a liquid crystal display (10) that is connected to described cpu controller (13), be used for showing load tap changer gear resistance numerical value every a preset time period ground.
3. distribution transforming tap gear detection system, it comprises distribution transforming tap gear detector as claimed in claim 1 (1), it is characterized in that: further comprise distribution transformer terminals opertaing device (2) and remote monitoring alarm equipment (3), described distribution transforming tap gear detector (1) sends data message to a controller (21) of distribution transformer terminals opertaing device (2) by its RS485 data communication end (15), described controller (21) draws the gear ranked data after these data messages are processed, and is transferred to remote monitoring alarm equipment (3) by distribution transformer terminals telecommunication passage (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220556073 CN202837447U (en) | 2012-10-25 | 2012-10-25 | Distribution and transformation tap position detector and distribution and transformation tap position detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220556073 CN202837447U (en) | 2012-10-25 | 2012-10-25 | Distribution and transformation tap position detector and distribution and transformation tap position detecting system |
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| Publication Number | Publication Date |
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| CN202837447U true CN202837447U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220556073 Expired - Lifetime CN202837447U (en) | 2012-10-25 | 2012-10-25 | Distribution and transformation tap position detector and distribution and transformation tap position detecting system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944743A (en) * | 2012-10-25 | 2013-02-27 | 长兴县供电局 | Detection instrument, detection system and detection method for distribution and transformation tapping point gear |
| CN105067935A (en) * | 2015-08-31 | 2015-11-18 | 国网山东省电力公司菏泽供电公司 | Transformer tap parameter estimation method based on reactive imbalance |
-
2012
- 2012-10-25 CN CN 201220556073 patent/CN202837447U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944743A (en) * | 2012-10-25 | 2013-02-27 | 长兴县供电局 | Detection instrument, detection system and detection method for distribution and transformation tapping point gear |
| CN105067935A (en) * | 2015-08-31 | 2015-11-18 | 国网山东省电力公司菏泽供电公司 | Transformer tap parameter estimation method based on reactive imbalance |
| CN105067935B (en) * | 2015-08-31 | 2017-11-28 | 国网山东省电力公司菏泽供电公司 | Load tap changer method for parameter estimation based on idle amount of unbalance |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Address after: 313000, Jinling Road 75, pheasant Town, Huzhou, Zhejiang, Changxing County Patentee after: CHANGXING COUNTY POWER SUPPLY BUREAU Patentee after: ZHEJIANG HUAYUN INFORMATION TECHNOLOGY Co.,Ltd. Patentee after: State Grid Corporation of China Address before: 313000, Jinling Road 75, pheasant Town, Huzhou, Zhejiang, Changxing County Patentee before: Changxing County Power Supply Bureau Patentee before: ZHEJIANG CREAWAY AUTOMATION ENGINEERING Co.,Ltd. Patentee before: State Grid Corporation of China |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |