CN203178469U - Portable transmitter verification meter - Google Patents

Portable transmitter verification meter Download PDF

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Publication number
CN203178469U
CN203178469U CN 201320197345 CN201320197345U CN203178469U CN 203178469 U CN203178469 U CN 203178469U CN 201320197345 CN201320197345 CN 201320197345 CN 201320197345 U CN201320197345 U CN 201320197345U CN 203178469 U CN203178469 U CN 203178469U
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CN
China
Prior art keywords
verification
transmitter
sensor
voltage
socket
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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
Application number
CN 201320197345
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Chinese (zh)
Inventor
何玉民
韩强
Original Assignee
何玉民
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Priority to CN 201320197345 priority Critical patent/CN203178469U/en
Application granted granted Critical
Publication of CN203178469U publication Critical patent/CN203178469U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a portable transmitter verification meter which adopts a verification principle, namely a comparison method by which one signal is sent both to the portable transmitter verification meter and a verified transmitter, an output value of the portable transmitter verification meter is regarded as a standard value to calibrate and adjust an output value of the verified transmitter, and then the output value of the verified transmitter is adjusted to be the same with the standard value. The verification meter is convenient to convey, can directly verify a transmitter at a transformer station without dismounting and conveying the transmitter, greatly reduces quantity of work and cost of verification, and is very convenient in verification process.

Description

Portable transmitter check meter
Technical field
The utility model relates to power equipment, relates in particular to a kind of Portable AC transmitter tester, is mainly used in power network schedule automation electrician's measurement.
Background technology
The alternating current transmitter is that combination current mutual inductor, current transducer are in the alternating current transmitter of new generation of one; it can directly convert tested major loop alternating current to the DC4~20mA that presses linear scaling output; the alternating current transmitter has the precision height; volume is little, power consumption is little, frequency response is wide, anti-interference, 4 kinds of indemnifying measures of domestic initiation and 6 big defencive functions comprehensively; two line cap anti induction thunder abilities are strong; advantages such as protective capability with thunderbolt ripple and surging; thereby be widely used in power industry, as transformer station.According to the regulation of the DL410-91 electrotechnical measurement transmitter operational management in " power network schedule automation and the communication " of power industry standard compilation, must carry out periodic check to the AC Electric Power transmitter.Prior art is to the verification of AC Electric Power transmitter, need arrive the transformer station scene transmitter is all removed from switchboard, bring back the laboratory and carry out verification with checking table, because of checking table bulky, heavily about more than 800 kilograms, inconvenience is transported to the transformer station scene and carries out verification.And, if all tear back transmitter open verification, the voltage, electric current of transformer station, data such as meritorious, idle have just been interrupted to the transmission of collection control power-management centre, a distant place, cause power scheduling personnel in a distant place to monitor real-time condition less than the substation equipment operation, bring blind area on the commander for the power scheduling personnel.
Therefore, necessary a kind of inspection machine of portability that provides solves above-mentioned technical matters.
Summary of the invention
The technical matters that the utility model solves is to provide a kind of portable transmitter check meter, it transports conveniently, can directly test to transmitter at the transformer station scene, and need not dismounting and transportation transmitter, greatly reduce labor capacity and the cost of check, and checkout procedure is also very convenient.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of portable transmitter check meter, comprise the voltage transformer (VT) summation current transformer that is connected with electric system, the electric current isolation sensor that is connected with described voltage transformer (VT), the voltage isolation sensor that is connected with described current transformer, simultaneously connect described voltage transformer (VT) summation current transformer meritorious sensor and idle sensor, verification jack module, be used for gathering the data collecting card of electric power data and the display terminal that is connected described data collecting card.
As the further improvement of the technical program, described verification jack module is connected to described data collecting card, and comprises voltage transmitter verification socket, current transducer verification socket, meritorious transmitter verification socket and idle transmitter verification socket; Described each verification socket is equipped with a lead line that is connected to described data collecting card.
Further improvement as the technical program, described data acquisition is arranged with multi-channel electronic switch and A/D change-over circuit, and described multi-channel electronic switch is respectively with described verification jack module, voltage and current isolation sensor and meritoriously electrically be connected with idle sensor.
As the further improvement of the technical program, an end of described voltage transformer (VT) is connected to electric system, and the other end has three exits, and each exit is divided into two branch roads; Two branch roads of first exit are connected to electric current isolation sensor and idle transmitter verification socket respectively; Two branch roads of second exit are connected to meritorious sensor and meritorious transmitter check socket respectively; Two branch roads of the 3rd exit are connected to idle sensor and voltage transmitter check socket respectively.
Further improvement as the technical program, one end of described current transformer is connected to electric system, the other end also has three exits, and first exit is connected to described voltage isolation sensor, second exit is connected to meritorious sensor, the 3rd exit has two branch roads, and these two branch roads are connected to idle sensor and current transducer verification socket respectively.
Compared with prior art, the utilization of the portable transmitter check meter of the utility model produces the principle that standard signal goes comparison to be calibrated by the trueness error of the transmitter of verification, and be designed to portable, greatly facilitate work for inspection, make and transmitter need not be removed and can be tested to it, very convenient, do not influence the normal operation of transformer station again.
Description of drawings
Fig. 1 is the Organization Chart of portable transmitter check meter described in the utility model.
Embodiment
See also shown in Figure 1, the utility model provides a kind of portable transmitter check meter, comprise the voltage transformer (VT) summation current transformer that is connected with electric system, the electric current isolation sensor 2 that is connected with described voltage transformer (VT), the voltage isolation sensor 1 that is connected with described current transformer, simultaneously connect described voltage transformer (VT) summation current transformer meritorious sensor 3 and idle sensor 4, verification jack module, be used for gathering the data collecting card 5 of electric power data and the display terminal that is connected described data collecting card 5.It is portable that the utility model exchanges the transmitter check meter, is used at the scene transmitter trueness error value in service being carried out verification, and as a rule, described electric system is AC electric power systems.
Described verification jack module is used for being connected to described data collecting card 5, and comprises voltage transmitter verification socket 6, current transducer verification socket 7, meritorious transmitter verification socket 8 and idle transmitter verification socket 9.Described each verification socket is equipped with a lead line that is connected to described data collecting card 5.
Described voltage transformer (VT) one end is connected to electric system, and the other end has three exits, and each exit is divided into two branch roads, and wherein, two branch roads of first exit are respectively applied to be connected to electric current isolation sensor 2 and idle transmitter verification socket 9; Two branch roads of second exit are connected to meritorious sensor 3 and meritorious transmitter check socket respectively; Two branch roads of the 3rd exit are connected to idle sensor 4 and voltage transmitter check socket respectively.
One end of described current transformer is connected to electric system, and the other end also has three exits, and specifically, first exit is connected to described voltage isolation sensor 1; Second exit is connected to meritorious sensor 3; The 3rd exit has two branch roads, is respectively applied to be connected to idle sensor 4 and current transducer verification socket 7.
Described data collecting card 5 is provided with multi-channel electronic switch and A/D change-over circuit, described multi-channel electronic switch respectively with described verification jack module, voltage and current isolation sensor 2, meritoriously be connected with idle sensor 4.Described A/D change-over circuit is an analog to digital conversion circuit, it is connected with described computer 10, is used for the electric power data that collects in the data collecting card 5 is carried out format conversion, converts computer 10 energy recognition data forms (being the decimal system) to, and be delivered to computer 10, shown by computer 10.
In the utility model most preferred embodiment, described display terminal for connect described data collecting card 5 and in be provided with the computer 10 of standard value, can be used for showing the data of being come by data collecting card 5 transmission, and these data are shown, to do numeric ratio with standard value, intuitively observe the comparative result of two groups of data for the testing staff, thereby judge whether detected interchange transmitter is in operate as normal.Described standard value comprises standard current value, standard voltage value, and it is produced and be delivered in the computer 10 by electric current isolation sensor 2 and voltage isolation sensor 1 respectively.
As from the foregoing, the portable transmitter tester of the utility model is actually the combination of cover components and parts, described voltage, electric current isolation sensor 1,2 characteristic be to electric current, voltage, parameter such as meritorious, idle carry out at a high speed, high-precision isolation detection and conversion, effectively overcome common mode interference; Described data collecting card 5 is gathered isolation sensor and by the signal of verification transmitter with it; And described transmitter verification jack module is used for inserting the transmitter by verification; Described computer 10 is installed corresponding software and can be viewed by the error amount of verification transmitter.
In addition, in the utility model preferred forms, the acquisition precision of described voltage isolation sensor 1 and electric current isolation sensor 2 is 0.2 grade; The acquisition precision of described meritorious sensor 3 and idle sensor 4 is 0.5 grade.
The verification principle that concrete principle of work of the present utility model is comparative approach, be about to that same signal parallel is sent to portable transmitter tester and by the transmitter of verification, be that standard goes to proofread adjustment by the output valve of verification transmitter with portable transmitter tester output valve, will be adjusted to when identical with standard value by verification transmitter output valve till.
Specifically, shown in Fig. 1, voltage isolation sensor 1 is sent to data collecting card 5 for generation of normal voltage, produces a decimal number through the A/D analog to digital conversion and is sent to notebook computer 10 and demonstrates standard voltage value and be sent to data collecting card 5 by the voltage transmitter output voltage of verification and produce a decimal number through the A/D analog to digital conversion and be sent to notebook computer 10 and demonstrate magnitude of voltage and its comparison.And described electric current isolation sensor 2 is sent to data collecting card 5 for generation of normalized current and produces a decimal number through the A/D analog to digital conversion and be sent to notebook computer 10 and demonstrate standard current value and be sent to data collecting card 5 by the current transducer output current of verification and produce a decimal number through the A/D analog to digital conversion and be sent to notebook computer 10 and demonstrate current value and its comparison.Described meritorious isolation sensor produces a decimal number through the A/D analog to digital conversion and is sent to notebook computer 10 and demonstrates the meritorious value of standard and produced a decimal number through the A/D analog to digital conversion and be sent to that notebook computer 10 demonstrates meritorious value and it compares by the meritorious data collecting card 5 that is sent to of the meritorious transmitter output of verification for generation of the meritorious data collecting card 5 that is sent to of standard.Described idle isolation sensor produces a decimal number through the A/D analog to digital conversion and is sent to notebook computer 10 and demonstrates the idle value of standard and produced a decimal number through the A/D analog to digital conversion and be sent to notebook computer 10 and demonstrate idle value and its comparison by the idle data collecting card 5 that is sent to of the idle transmitter output of verification for generation of the idle data collecting card 5 that is sent to of standard.
In sum, the utility model exchanges the utilization of transmitter check meter and produces the principle that standard signal goes comparison to be calibrated by the trueness error of verification AC Electric Power transmitter, and be designed to portable, greatly facilitate work for inspection, make and transmitter need not be removed and can be tested to it, very convenient, do not influence the normal operation of transformer station again.
The above; it only is most preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction; any those of ordinary skill in the art; do not breaking away under the technical solutions of the utility model scope situation; utilize the method content of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, all belong to the scope of claims protection.

Claims (5)

1. portable transmitter check meter is characterized in that: comprise the voltage transformer (VT) summation current transformer that is connected with electric system, the electric current isolation sensor that is connected with described voltage transformer (VT), the voltage isolation sensor that is connected with described current transformer, simultaneously connect described voltage transformer (VT) summation current transformer meritorious sensor and idle sensor, verification jack module, be used for gathering the data collecting card of electric power data and the display terminal that is connected described data collecting card.
2. portable transmitter check meter according to claim 1, it is characterized in that: described verification jack module is connected to described data collecting card, and comprises voltage transmitter verification socket, current transducer verification socket, meritorious transmitter verification socket and idle transmitter verification socket; Described each verification socket is equipped with a lead line that is connected to described data collecting card.
3. portable transmitter check meter according to claim 2, it is characterized in that: described data acquisition is arranged with multi-channel electronic switch and A/D change-over circuit, and described multi-channel electronic switch is respectively with described verification jack module, voltage and current isolation sensor and meritoriously electrically be connected with idle sensor.
4. portable transmitter check meter according to claim 3, it is characterized in that: an end of described voltage transformer (VT) is connected to electric system, and the other end has three exits, and each exit is divided into two branch roads; Two branch roads of first exit are connected to electric current isolation sensor and idle transmitter verification socket respectively; Two branch roads of second exit are connected to meritorious sensor and meritorious transmitter check socket respectively; Two branch roads of the 3rd exit are connected to idle sensor and voltage transmitter check socket respectively.
5. portable transmitter check meter according to claim 4, it is characterized in that: an end of described current transformer is connected to electric system, the other end also has three exits, and first exit is connected to described voltage isolation sensor, second exit is connected to meritorious sensor, the 3rd exit has two branch roads, and these two branch roads are connected to idle sensor and current transducer verification socket respectively.
CN 201320197345 2013-04-18 2013-04-18 Portable transmitter verification meter Expired - Fee Related CN203178469U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320197345 CN203178469U (en) 2013-04-18 2013-04-18 Portable transmitter verification meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320197345 CN203178469U (en) 2013-04-18 2013-04-18 Portable transmitter verification meter

Publications (1)

Publication Number Publication Date
CN203178469U true CN203178469U (en) 2013-09-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320197345 Expired - Fee Related CN203178469U (en) 2013-04-18 2013-04-18 Portable transmitter verification meter

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Country Link
CN (1) CN203178469U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105606147A (en) * 2016-03-25 2016-05-25 国网上海市电力公司 Portable transmitter calibrator
CN105785307A (en) * 2016-04-01 2016-07-20 中国电力工程顾问集团西南电力设计院有限公司 Method of determining calibration value of high-power-grade and small-capacity transformer measuring instrument
CN110308414A (en) * 2019-06-03 2019-10-08 许昌龙岗发电有限责任公司 Multiple groups electric parameters transducer uniformly tests application of the law technology in transmitter calibrating

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105606147A (en) * 2016-03-25 2016-05-25 国网上海市电力公司 Portable transmitter calibrator
CN105606147B (en) * 2016-03-25 2017-09-29 国网上海市电力公司 A kind of portable trans calibrator
CN105785307A (en) * 2016-04-01 2016-07-20 中国电力工程顾问集团西南电力设计院有限公司 Method of determining calibration value of high-power-grade and small-capacity transformer measuring instrument
CN110308414A (en) * 2019-06-03 2019-10-08 许昌龙岗发电有限责任公司 Multiple groups electric parameters transducer uniformly tests application of the law technology in transmitter calibrating

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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130904

Termination date: 20150418

EXPY Termination of patent right or utility model