CN203772958U - Wireless clamp-shaped phase detection device - Google Patents
Wireless clamp-shaped phase detection device Download PDFInfo
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- CN203772958U CN203772958U CN201420073454.7U CN201420073454U CN203772958U CN 203772958 U CN203772958 U CN 203772958U CN 201420073454 U CN201420073454 U CN 201420073454U CN 203772958 U CN203772958 U CN 203772958U
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Abstract
The utility model relates to a wireless clamp-shaped phase detection device, which is characterized in that communication connection between a host unit and a current detection unit is carried out by adopting wireless signals, communication connection between the host unit and a voltage detection unit is carried out by adopting wireless signals, and the host unit, the current detection unit and the voltage detection unit form an integral whole body. The beneficial effects are that the wireless clamp-shaped phase detection device is not restricted by the distance between the position of a phase reference vector and a detected position when amplitude and phase detection is carried out on alternating current and alternating voltage, thereby being capable of detecting the amplitude and the phase of the alternating voltage and the alternating current at different positions conveniently, and detecting the accuracy of the alternating current and the alternating voltage of a substation through measuring the electrical quantity of a secondary terminal. The wireless clamp-shaped phase detection device has the characteristics of simplicity, convenience, high efficiency and good effect, thereby maintaining safe and stable operation of a power grid.
Description
Technical field
The utility model belongs to electrotechnics, is alternating current and voltage are carried out to the device that amplitude and phase place detect.
Background technology
In October, 2000, Yunnan Power System 220kV becomes the ﹟ 1 main transformer LEP-973G public winding zero sequence overcurrent protection of electricity station and moves three side switch trips, and Yuanmou becomes except 220kV inlet wire, no-voltage of entire station.Totally four electric railway tractions of Yuanmou, Yang Jiuhe, the pasture heart and bight that causes the substation's confession of 220kV Yuanmou becomes dead electricity and reaches 68 minutes, causes elder brother's iron 13 row lorry 1 row passenger trains to stop transport.Great economic loss and bad social influence have been caused.Accident occurs by checking that Fa Xian ﹟ 1 main transformer zero sequence loop seals in B phase current, and this does not all find the accident potential that this is great in Installation and Debugging and the course of receiving.
In Dec, 2011, the Yunnan Power System 110kV 10kV of transformer station II section bus PT blast, correct operation should be by the 10kV back-up protection of #2 main transformer or 110kV back-up protection action excision fault, but 2# main transformer backup protection is action not, cause high bridge institute to become, Jingan County becomes deperssurization emergency, loss load 79.13MW, loss load proportion 10%, the power supply user ratio 5.3% that has a power failure, check and find that it is that on-the-spot installation personnel has been connected into 110kV I section busbar voltage by the voltage circuit mistake of No. 2 main transformer 10kV side composite voltage locking overcurrent protections that 2# main transformer backup protection does not have the reason of action.For fear of the generation of this type of event and accident, need to carry out current/voltage check in transformer station.
Because the detection position of voltage detecting positional distance secondary current is far away, generally all using the voltage fixed as phase measurement benchmark, wired measuring unit makes troubles to on-the-spot detection, for example: before transformer station puts into operation, be the correctness in check alternating current loop, at an Accelerated Life electric current, at secondary, using trial voltage as phase-detection benchmaring secondary current amplitude and phase place, there is line detector just to highlight its huge limitation, that is exactly that the voltage of the single test power supply that can not using is as phase-detection benchmark, thereby make the effect of check sufficiently complete and comprehensive.
Due to wired pincerlike phase meter, there is many-sided deficiency simultaneously, one, underaction is convenient, has the restriction of connecting line, during detection, heavy carrying host need to be taken to detection position.Its two because there is connecting line, easily bad connection, causes can't detect data or wrong data detected, its three, on-the-spot staff, forked working, can influence each other, and do not note being connected line and trip, or connecting line is stumbled.
In order to solve Similar Problems, so be badly in need of the deficiency that the wireless pincerlike phase detection device of research and development makes up current detection device instrument.
By this wireless pincerlike phase detection device, wireless voltage detecting and wireless current detection scheme are provided, can safe, efficient, lowly complete neatly on-the-spot interchange testing.
Utility model content
Under such technical background, for solving the problem of above-mentioned existence, between detecting unit and main frame, adopt the mode of wireless communication technology, solve the problems referred to above.
The purpose of this utility model is achieved by the following technical solution.
Main computer unit comprises microprocessor, LCD MODULE, input keyboard, state load module, wireless communication data transport module 1, data-carrier store, printer, communication interface, power module, air power switch, rechargeable battery; These components and parts annexations are: alternating current 220V input power plug is connected to air power switch, air power switch is connected to power module, power module is connected to rechargeable battery, power module is connected to microprocessor, and microprocessor is connected with on-off controller, liquid crystal display, input keyboard, wireless communication data transport module 1, data-carrier store, printer, communication interface respectively;
Voltage detection unit comprises: voltage measurement probe, voltage collector, analog-to-digital conversion module 1, wireless communication data transport module 2; These components and parts annexations are: voltage measurement probe is sequentially connected with voltage collector, analog-to-digital conversion module 1, wireless communication data transport module 2, and by wireless signal and the wireless communication data transport module 1 of main computer unit carry out communication be connected transmission data.
Current detecting unit comprises: the pincerlike probe of current measurement, current collector, analog-to-digital conversion module 2, wireless communication data transport module 3; These components and parts annexations are: voltage measurement probe is sequentially connected with voltage collector, analog-to-digital conversion module 2, wireless communication data module 2, and by wireless signal and wireless communication data transport module 1 carry out communication be connected transmission data.
The utility model main computer unit and voltage detection unit carry out exchanges data by wireless transmission; by wireless transmission, carry out exchanges data with current unit; can collect voltage (or electric current) at a distance as reference vector; when the current/voltage that carries out protection screen cabinet detects as unified fixing phase reference; when detecting, do not need to carry main frame and follow measurement, only need to detect with pincerlike current detecting unit or voltage detection unit.
The beneficial effects of the utility model are, when carrying out the amplitude phase-detection of AC current-voltage, be not subject to the restriction of the distance distance of phase reference vector position and detection position, can detect easily alternating voltage current amplitude and the phase place of diverse location, by the measurement to secondary terminals electric parameters, the correctness in the AC current-voltage loop of check transformer station, has the feature easy, efficiency is high, effective, thereby safeguards the safe and stable operation of electrical network.
Below in conjunction with accompanying drawing and example, the utility model is described further.
Accompanying drawing explanation
Fig. 1 is wireless pincerlike phase detection device main computer unit connection principle schematic diagram;
Fig. 2 is wireless pincerlike phase detection device voltage detection unit connection principle schematic diagram;
Fig. 3 is wireless pincerlike phase detection device current detecting unit connection principle schematic diagram;
Fig. 4 is wireless pincerlike pick-up unit application schematic diagram.
Embodiment
See Fig. 1, Fig. 2, Fig. 3 and Fig. 4, wireless pincerlike phase detection device, the utility model is characterised in that, comprises main computer unit, voltage detection unit and current detecting unit; Wherein:
Main computer unit comprises microprocessor, LCD MODULE, input keyboard, state load module, wireless communication data transport module 1, data-carrier store, printer, communication interface, power module, air power switch, rechargeable battery; These components and parts annexations are: alternating current 220V input power plug is connected to air power switch, air power switch is connected to power module, power module is connected to rechargeable battery, power module is connected to microprocessor, and microprocessor is connected with on-off controller, liquid crystal display, input keyboard, wireless communication data transport module 1, data-carrier store, printer, communication interface respectively;
Voltage detection unit comprises: voltage measurement probe, voltage collector, analog-to-digital conversion module 1, wireless communication data transport module 2; These components and parts annexations are: voltage measurement probe is sequentially connected with voltage collector, analog-to-digital conversion module 1, wireless communication data transport module 2, and by wireless signal and the wireless communication data transport module 1 of main computer unit carry out communication be connected transmission data.
Current detecting unit comprises: the pincerlike probe of current measurement, current collector, analog-to-digital conversion module 2, wireless communication data transport module 3; These components and parts annexations are: voltage measurement probe is sequentially connected with voltage collector, analog-to-digital conversion module 2, wireless communication data module 2, and by wireless signal and wireless communication data transport module 1 carry out communication be connected transmission data.
The utility model main computer unit and voltage detection unit carry out exchanges data by wireless transmission; by communication, carry out exchanges data with current unit; can collect voltage (or electric current) at a distance in transformer station; when detecting, the current/voltage that carries out protection screen cabinet usings this as phase reference; and when detecting, do not need special messenger to carry main frame and follow measurement, only need to detect with pincerlike current detecting unit or voltage detection unit.
Microprocessor is for the operation calculating of software and the monitoring of peripherals, and input keyboard is for input message, and LCD MODULE, for output display information, shows electric current and voltage, and phasing degree, can show amplitude and the phase place of the three-phase test power supply of output.Communication interface can with external unit swap data, wireless communication data transport module 1 sending and receiving wireless signal, realizes data and transmits, and carries out real-time radio data transmission with the wireless transport module 2 of voltage detection unit.Wireless communication data transport module 1 sending and receiving wireless signal, realizes data and transmits, and carries out real-time radio data transmission with the wireless transport module 3 of voltage detection unit.Timely tripping when air power switch transmission line circuit has short-circuit conditions, guarantees device security.Electric parameters collector, is transformed into the electric parameters collecting the input quantity of analog-to-digital conversion module.Analog-to-digital conversion module converts numeral to analog quantity, offers wireless communication data transport module.Data storage can be used for store various kinds of data.Power module is for needing the microprocessor etc. of working power to provide normal work needed power supply, the inconvenience that rechargeable battery connects for reducing power lead, or in power free situation, provide normal work needed power supply.
Basic functional principle is, see Fig. 1, input AC 220V power supply, by air power switch, output to power module, power module provides work required power supply for microprocessor, and microprocessor is connected with on-off controller, liquid crystal display, input keyboard, wireless communication data transport module 1, data-carrier store, printer, communication interface respectively; By wireless communication data transport module 1 and wireless communication data transport module 2, carry out exchanges data, carry out exchanges data with wireless communication data transport module 3.
See Fig. 2, the probe of voltage detection unit detects amplitude and the phase data of voltage at voltage terminal, and by data acquisition unit, analog-to-digital conversion module 1 and wireless communication data transport module 2, transfer data to main computer unit.
See Fig. 3, the pincer probe of current detecting unit detects the amplitude phase data of electric current, and by data acquisition unit, analog-to-digital conversion module 2 and wireless communication data transport module 3, transfer data to main computer unit.
The utility model main computer unit and voltage detection unit carry out exchanges data by wireless transmission; by wireless transmission, carry out exchanges data with current unit; can collect voltage (or electric current) at a distance; when the current/voltage that carries out protection screen cabinet detects as phase reference; and when detecting, do not need special messenger to carry main frame and follow measurement, only need to detect with pincerlike current detecting unit or voltage detection unit.
See Fig. 4; thick dashed line is wireless pincerlike phase detection device; fine line is 220kV substation operation equipment and wiring; at voltage screen terminal, with voltage detection unit, detect voltage; and can select a wherein reference voltage as phase-detection of A, B, C, at protection screen current terminal, with current detecting unit, detect electric current.To secondary cable, wiring detects, and detects amplitude and the phasing degree of electric current secondary loop.By the analysis to the data that detect, the correctness of judgement circuit connection.
Claims (1)
1. wireless pincerlike phase detection device, it is characterized in that, between main computer unit and current detecting unit, adopting wireless signal to communicate is connected, between main computer unit and voltage detection unit, adopt wireless signal to communicate and be connected, the integral body of main computer unit, current detecting unit and voltage detection unit complete; Wherein:
Main computer unit comprises microprocessor, LCD MODULE, input keyboard, state load module, wireless communication data transport module 1, data-carrier store, printer, communication interface, power module, air power switch, rechargeable battery; These components and parts annexations are: alternating current 220V input power plug is connected to air power switch, air power switch is connected to power module, power module is connected to rechargeable battery, power module is connected to microprocessor, and microprocessor is connected with on-off controller, liquid crystal display, input keyboard, wireless communication data transport module 1, data-carrier store, printer, communication interface respectively;
Voltage detection unit comprises: voltage measurement probe, voltage collector, analog-to-digital conversion module 1, wireless communication data transport module 2; These components and parts annexations are: voltage measurement probe is sequentially connected with voltage collector, analog-to-digital conversion module 1, wireless communication data transport module 2, and by wireless signal and the wireless communication data transport module 1 of main computer unit carry out communication be connected transmission data;
Current detecting unit comprises: the pincerlike probe of current measurement, current collector, analog-to-digital conversion module 2, wireless communication data transport module 3; These components and parts annexations are: voltage measurement probe is sequentially connected with voltage collector, analog-to-digital conversion module 2, wireless communication data module 2, and by wireless signal and wireless communication data transport module 1 carry out communication be connected transmission data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420073454.7U CN203772958U (en) | 2014-02-20 | 2014-02-20 | Wireless clamp-shaped phase detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420073454.7U CN203772958U (en) | 2014-02-20 | 2014-02-20 | Wireless clamp-shaped phase detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203772958U true CN203772958U (en) | 2014-08-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420073454.7U Withdrawn - After Issue CN203772958U (en) | 2014-02-20 | 2014-02-20 | Wireless clamp-shaped phase detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203772958U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777077A (en) * | 2014-02-20 | 2014-05-07 | 陈勇 | Wireless pincerlike phase detection device |
| CN104808062A (en) * | 2015-05-21 | 2015-07-29 | 云南电网有限责任公司 | Different-place voltage-current phase difference measuring system |
-
2014
- 2014-02-20 CN CN201420073454.7U patent/CN203772958U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777077A (en) * | 2014-02-20 | 2014-05-07 | 陈勇 | Wireless pincerlike phase detection device |
| CN103777077B (en) * | 2014-02-20 | 2016-07-13 | 陈勇 | Wireless pincerlike phase detection device |
| CN104808062A (en) * | 2015-05-21 | 2015-07-29 | 云南电网有限责任公司 | Different-place voltage-current phase difference measuring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140813 Effective date of abandoning: 20160713 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |