CN202217003U - Intelligent anti-electricity-theft prepaid high voltage metering box - Google Patents
Intelligent anti-electricity-theft prepaid high voltage metering box Download PDFInfo
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- CN202217003U CN202217003U CN2011202918185U CN201120291818U CN202217003U CN 202217003 U CN202217003 U CN 202217003U CN 2011202918185 U CN2011202918185 U CN 2011202918185U CN 201120291818 U CN201120291818 U CN 201120291818U CN 202217003 U CN202217003 U CN 202217003U
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- current transformer
- voltage
- transformer
- electricity
- control loop
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Abstract
The utility model relates to an intelligent anti-electricity-theft prepaid high voltage metering box. The first phase and the second phase of a high voltage inlet wire terminal are connected to the inlet wire side of a vacuum switch respectively through the primary coil of a first current transformer and the primary coil of a second current transformer. The first voltage transformer and the second voltage transformer are connected on the inlet wire side of the vacuum switch via a three-phase V\V wiring manner. The low voltage control power supply of a control loop is guided to the secondary side of the second voltage transformer for auxiliary winding. The first current transformer, the second current transformer, the secondary coil of a first voltage transformer, and the secondary coil of a second voltage transformer are respectively connected to the input terminal of a prepaid metering module. The output terminal of the prepaid metering module is connected to the input terminal of the control loop. The output terminal of the control loop is connected to the control terminal of the vacuum switch.
Description
Technical field
The utility model relates to a kind of High-voltage measuring box, especially a kind of intelligent anti-electricity-theft pre-payment High-voltage measuring box.
Background technology
10kV power distribution network sale of electricity proportion is maximum in China's electric system, but the stealing problem is quite serious, and the anti-electricity-theft task of electric power operation enterprise is arduous.Bad user's electricity filching means is hidden, and stealing electricity method is numerous.At present, the anti-theft electricity technology means are divided three classes: 1, ammeter is increased new molding box cover, locks and lead sealing.This is historical the longest anti-electricity-theft means, but maximum drawback is that technology content is limited, has only increased mechanical protection and has guarded, and can not realize the monitoring of electricity filching behavior; 2, adopt anti-electricity-theft ammeter and electricity-stealing prevention metering tank.Through the function in the expansion electric energy meter, can take precautions against under-voltage method, undercurrent, the phase failure, phase-shifting method stealing.At present, fault judgement and writing functions such as numerous ammeters are integrated under-voltage, undercurrent, the phase failure, phase shift, but because the table meter is in low-pressure side, can't stops bad user and get around the table meter from distribution line front end electricity filching behavior; 3, adopt system monitoring.Obtain the electricity consumption data in real time through power load terminal electric quality collector, and adopt the wireless communication mode teletransmission to Surveillance center.The terminal device of this type systematic employing is traditional High-voltage measuring box and low pressure monitoring device at present, the electricity filching behavior in the zone that can in time note abnormalities.Same because the terminal list meter is in low-pressure side, still there is the possibility of being distorted.
The utility model content
In view of this, the purpose of the utility model is to provide a kind of intelligent anti-electricity-theft pre-payment High-voltage measuring box, and it is simple in structure, and is easy for installation, and can be effectively anti-electricity-theft.
In order to realize above purpose; The utility model adopts a kind of so intelligent anti-electricity-theft pre-payment High-voltage measuring box; Comprise first current transformer, second current transformer, first voltage transformer (VT), second voltage transformer (VT), vacuum switch, a control loop and a pre-payment meter module; First phase, second of high pressure end of incoming cables is connected to the inlet wire side of described vacuum switch mutually respectively through the primary winding of the primary winding of described first current transformer and described second current transformer; Described first voltage transformer (VT) adopts the three-phase V/V mode of connection to be connected in the inlet wire side of described vacuum switch with second voltage transformer (VT); The low-voltage control power of described control loop draws from the auxiliary winding of the secondary side of described second voltage transformer (VT); The secondary coil of described first current transformer, described second current transformer, described first voltage transformer (VT) and described second voltage transformer (VT) is connected to the input end of described pre-payment meter module respectively; The output terminal of described pre-payment meter module is connected to the input end of control loop, and the output terminal of described control loop is connected to the control end of vacuum switch.
Especially; It also comprises overcurrent protection module; The secondary side protection coil of described first current transformer and described second current transformer is connected to the input end of described overcurrent protection module, and the output terminal of described overcurrent protection module is connected to the input end of control loop.
Especially, the unsteady flow of described first current transformer and described second current transformer adopts the secondary tap structure.
The utility model difference with the prior art is: will measure the inlet wire side that places vacuum switch with voltage transformer (VT), current transformer and pre-payment meter module, this monoblock type high-pressure side installing structure can prevent electricity filching behavior effectively.
Description of drawings
Fig. 1 is the schematic block circuit diagram of a kind of intelligent anti-electricity-theft pre-payment High-voltage measuring box of the utility model embodiment.
Embodiment
As shown in Figure 1; A kind of intelligent anti-electricity-theft pre-payment High-voltage measuring box; Comprise the first current transformer CT1, the second current transformer CT2, first voltage transformer pt 1, second voltage transformer pt 2 and the vacuum switch, wherein the unsteady flow of the first current transformer CT1 and the second current transformer CT2 can adopt the secondary tap structure.It also comprises a pre-payment meter module; Control loop and overcurrent protection module; The first phase AP1 of high pressure end of incoming cables, the second phase CP1 are connected to inlet wire side AP2, the CP2 of vacuum switch respectively through the primary winding of the primary winding of the first current transformer CT1 and the second current transformer CT2; First voltage transformer pt 1 adopts the three-phase V/V mode of connection to be connected at inlet wire side AP2, BP2, the CP2 of vacuum switch with second voltage transformer pt 2; The low-voltage control power of control loop draws from the auxiliary winding v1 of the secondary side of second voltage transformer (VT), v2; The secondary coil of the first current transformer CT1, the second current transformer CT2, first voltage transformer pt 1 and second voltage transformer pt 2 is connected to input end as1, as2 or the as3 of pre-payment meter module, cs1, cs2 or cs3 and a, b, c respectively.The secondary side protection coil of the first current transformer CT1 and the second current transformer CT2 is connected to input end s1, s2, s3 and the s4 of overcurrent protection module.The output terminal wf of pre-payment meter module and the output terminal oc of overcurrent protection module are connected to the input end of control loop, and the output terminal of control loop is connected to the control end of vacuum switch.
The principle of work of this circuit: if the pre-payment meter module is calculated the gained prepayment meter when the expense state is arranged, press the switch knob in the control loop, vacuum switch closes a floodgate, and a back level transformer has electricity to move.When pre-payment meter module when to calculate the gained prepayment meter be no expense state, the pre-payment meter module is conveyed to control loop with this signal, and this moment, vacuum switch broke off, and transformer does not have electricity, stops power supply.
Claims (3)
1. intelligent anti-electricity-theft pre-payment High-voltage measuring box; Comprise first current transformer, second current transformer, first voltage transformer (VT), second voltage transformer (VT), vacuum switch, a control loop and a pre-payment meter module; It is characterized in that: first phase, second of high pressure end of incoming cables is connected to the inlet wire side of described vacuum switch mutually respectively through the primary winding of the primary winding of described first current transformer and described second current transformer; Described first voltage transformer (VT) adopts the three-phase V/V mode of connection to be connected in the inlet wire side of described vacuum switch with second voltage transformer (VT); The low-voltage control power of described control loop draws from the auxiliary winding of the secondary side of described second voltage transformer (VT); The secondary coil of described first current transformer, described second current transformer, described first voltage transformer (VT) and described second voltage transformer (VT) is connected to the input end of described pre-payment meter module respectively; The output terminal of described pre-payment meter module is connected to the input end of control loop, and the output terminal of described control loop is connected to the control end of vacuum switch.
2. intelligent anti-electricity-theft pre-payment High-voltage measuring box according to claim 1; It is characterized in that: it also comprises overcurrent protection module; The secondary side protection coil of described first current transformer and described second current transformer is connected to the input end of described overcurrent protection module, and the output terminal of described overcurrent protection module is connected to the input end of control loop.
3. intelligent anti-electricity-theft pre-payment High-voltage measuring box according to claim 1 and 2 is characterized in that: the unsteady flow of described first current transformer and described second current transformer adopts the secondary tap structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202918185U CN202217003U (en) | 2011-08-09 | 2011-08-09 | Intelligent anti-electricity-theft prepaid high voltage metering box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202918185U CN202217003U (en) | 2011-08-09 | 2011-08-09 | Intelligent anti-electricity-theft prepaid high voltage metering box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202217003U true CN202217003U (en) | 2012-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202918185U Expired - Fee Related CN202217003U (en) | 2011-08-09 | 2011-08-09 | Intelligent anti-electricity-theft prepaid high voltage metering box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202217003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128741A (en) * | 2016-08-12 | 2016-11-16 | 山东亿玛信诺电气有限公司 | Unified no-load voltage ratio molded breadth width metering combination transformer |
-
2011
- 2011-08-09 CN CN2011202918185U patent/CN202217003U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128741A (en) * | 2016-08-12 | 2016-11-16 | 山东亿玛信诺电气有限公司 | Unified no-load voltage ratio molded breadth width metering combination transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325604, Zhejiang City, Wenzhou province Yueqing Town, North white elephant electrical appliance industry zone Patentee after: Huajian Electric Applicance Co., Ltd Address before: 325604, Zhejiang City, Wenzhou province Yueqing Town, North white elephant electrical appliance industry zone Patentee before: Zhejiang Huajian Electric Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20150809 |
|
| EXPY | Termination of patent right or utility model |