CN114002471A - Multifunctional electric power parameter measuring instrument verification system - Google Patents
Multifunctional electric power parameter measuring instrument verification system Download PDFInfo
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- CN114002471A CN114002471A CN202111282321.1A CN202111282321A CN114002471A CN 114002471 A CN114002471 A CN 114002471A CN 202111282321 A CN202111282321 A CN 202111282321A CN 114002471 A CN114002471 A CN 114002471A
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/12—Circuits for multi-testers, i.e. multimeters, e.g. for measuring voltage, current, or impedance at will
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Abstract
The invention relates to a multifunctional power parameter measuring instrument calibration system, and belongs to the field of metrological calibration. The invention provides a junction box, which can realize semi-automatic wiring; the built-in test circuit is provided, the voltage function is connected in parallel, the current function is connected in series for testing, a single calibration source can be used for calibrating the three-phase multifunctional power parameter measuring instrument, three-way voltage or three-way current of the multifunctional power parameter measuring instrument to be tested can be simultaneously detected, the calibration time is shortened, and the calibration efficiency is improved; the built-in test circuit is provided, the circuit program control change-over switch is built in, the wiring does not need to be changed in the test process, the test process is simplified, the detection time can be shortened, the working intensity of personnel is reduced, and the risk in detection is reduced; the verification platform is provided with 4 junction boxes, the junction boxes are easy and convenient to operate, the junction boxes are in good contact with the detected multifunctional power parameter measuring instruments, at most, 4 multifunctional power parameter measuring instruments can be verified simultaneously, and verification efficiency is improved.
Description
Technical Field
The invention belongs to the field of metrological verification, and particularly relates to a multifunctional power parameter measuring instrument verification system.
Background
The multifunctional power parameter measuring instrument is used for monitoring power parameters such as alternating-current phase voltage, line voltage, current, frequency and power factor (phase), and is widely used for on-line monitoring of a power system and measurement of various electrical parameter indexes. In order to avoid the influence caused by the reduction of the measurement accuracy of the instrument in the long-term use process, the power instrument needs to be periodically verified.
At present, manual verification is generally adopted, and in the verification process, a power line of the multifunctional power parameter measuring instrument needs to be connected to supply power to the multifunctional power parameter measuring instrument, a calibration source and a test line of the multifunctional power parameter measuring instrument need to be connected, the calibration source is operated to output, and display parameters, reading and result interpretation of the multifunctional power parameter measuring instrument need to be switched. Before and after verification, manual wiring and disconnection are needed, and the time consumption is long. Because the multifunctional power parameter measuring instrument has more functions, such as V1N、V2N、V3NPhase voltage, V12、V23、V13Line voltage, I1、I2、I3Current, f1、f2、f3And the frequency and the like can be sequentially detected item by item, and the output of the calibration source, the display parameters of the multifunctional power parameter measuring instrument and the test connecting lines of the calibration source and the multifunctional power parameter measuring instrument are required to be continuously switched. The labor intensity of the verification personnel is high, the verification efficiency is low, the disconnection is difficult, the line change and the connection are frequent, and the switching and the correction are easy to occurAnd misoperation such as synchronous switching of test connecting wires is not performed during the quasi-source output function, so that serious potential safety hazards exist.
Therefore, a multifunctional power parameter measuring instrument calibration system and a method thereof which are simple and convenient to operate and efficient in calibration are urgently needed.
Disclosure of Invention
Technical problem to be solved
The invention aims to solve the technical problem of how to provide a multifunctional electric parameter measuring instrument verification system so as to solve the problems of high labor intensity of verification personnel, low verification efficiency, difficult wire disconnection and frequent wire change and the like of the existing verification method, and serious potential safety hazards caused by misoperation such as synchronous switching of test connecting wires and the like when the output function of a calibration source is switched easily.
(II) technical scheme
In order to solve the technical problem, the invention provides a multifunctional electric power parameter measuring instrument verification system, which comprises a main control computer, a multi-epitope verification platform, a calibration source, an electronic tag recognizer, a tag printer and at least 1 multifunctional electric power parameter measuring instrument;
the main control computer is connected with the multi-epitope verification platform through an RS485-USB data line, connected with the calibration source through a GPIB-USB data line, and connected with the electronic tag recognizer and the tag printer through a network cable;
the multi-epitope verification platform is connected with a calibration source through a test line, and the multifunctional power parameter measuring instrument is placed in a junction box of the multi-epitope verification platform;
the multi-epitope verification platform comprises a voltage input end V +, a voltage input end V-, a current input end I +, an I-and an RS485 communication interface D0+、D 1220V ac power input interface, 4 junction boxes and built-in test circuit;
the voltage input end and the current input end are used for connecting the voltage output end and the current output end of the calibration source; the RS485 interface is used for communicating the main control computer and the multifunctional electric power parameter measuring instrument in the junction box, and the 220V alternating current power supply input interface is used for supplying power to the multifunctional electric power parameter measuring instrument in the junction box.
Furthermore, a junction box in the multi-epitope verification platform conforms to the size of the multifunctional power parameter measuring instrument and comprises a box body, a box cover and a buckle.
Further, the bottom of the junction box is provided with a voltage interface V1、V2、V3、VNCurrent interface I1+、I1-、I2+、I2-、I3+、I3-, power interface L +, N-, RS485 communication interface D0+、D1The voltage interface, the current interface, the power interface and the RS485 communication interface terminal are provided with springs, and are connected with corresponding interfaces of the calibration stand through a built-in test circuit.
Furthermore, a plurality of female buttons are arranged in the middle of the side surface of the junction box from top to bottom, and two male buttons are arranged on the side surface of the box cover.
Furthermore, the multifunctional power parameter measuring instrument is placed in the junction box, so that the voltage, the current, the power supply and the communication wiring terminal of the multifunctional power parameter measuring instrument correspond to the voltage, the current, the power supply and the communication interface terminal of the junction box one by one, the box cover is covered and is pressed downwards, the stress of each interface terminal spring in the junction box is self-adjusted in torque, so that the wiring terminal of the multifunctional power parameter measuring instrument is well contacted with each corresponding interface terminal in the junction box, and the male buckle of the box cover is slid to be tightly clamped with the female buckle at the corresponding height, so that wiring is completed.
Further, the built-in test circuit includes: each terminal box V1Voltage input end V + and V of connecting verification platformNVoltage input end V-, V-of the connection verification platform2By connecting the voltage input end V + or V-, V of the verification platform by a program control switch3The voltage input end V-or V + of the verification platform is connected by the program control switch to form a voltage parallel loop.
Further, the built-in test circuit further includes: each terminal box I1-and I2+ connect, I2-and I3+ connection; 1# terminal box I1+ connect the current input end I +, I of the verification platform1-and I2+ connect, I2-and I3+ connect, I3-connecting the current input I-or 2# connection of the verification station by means of a programmable switchOf cassettes I1I of + 2# junction box3-connecting the current input I-of the certification platform or I of the 3# junction box by means of a programmable switch1I of + 3# junction box3-connecting the current input of the certification platform I-or the I of the 4# junction box by means of a programmable switch1I of + 4# junction box3-connecting the certification stand current input terminal I-to form a current series circuit.
Further, the built-in test circuit further includes: the L + end of the power supply of each junction box is connected with a live wire of a 220V power supply input interface of the verification platform, and the N-end of the power supply of each junction box is connected with a zero wire of the 220V power supply input interface of the verification platform.
Further, the built-in test circuit further includes: RS485 communication interface D of each junction box0+ and verification station RS485 communication interface D0+ connected RS485 communication interface D of each junction box1Interface D for communication with verification station RS4851-a connection.
Furthermore, the electronic tag identifier is connected with the main control computer through a network cable, identifies the electronic tag posted on the detected multifunctional power parameter measuring instrument, acquires the information of the detected multifunctional power parameter measuring instrument recorded in the electronic tag, and transmits the acquired information to the main control computer.
(III) advantageous effects
The invention provides a multifunctional power parameter measuring instrument calibration system, which has the following advantages:
(1) the invention provides a junction box capable of semi-automatically connecting wires.
(2) The invention provides a built-in test circuit, which is used for testing the voltage function in parallel and the current function in series, can test the three-phase multifunctional power parameter measuring instrument by using a single calibration source, can simultaneously test three-way voltage or three-way current of the tested multifunctional power parameter measuring instrument, shortens the testing time and improves the testing efficiency.
(3) The invention provides a built-in test circuit, a line program control change-over switch is built in, wires do not need to be changed in the test process, the test process is simplified, the verification time can be shortened, the verification efficiency is improved, the working intensity of personnel is reduced, and the risk in verification is reduced.
(4) The verification platform is provided with 4 junction boxes, the junction boxes are simple and convenient to operate, the junction boxes are in good contact with the detected multifunctional power parameter measuring instrument, at most, 4 multifunctional power parameter measuring instruments can be verified simultaneously, and verification efficiency is improved.
(5) The invention can automatically collect and process data, judge verification conclusion, print metering marks and automatically complete all the work involved in the verification.
Drawings
FIG. 1 is a block diagram of a multifunctional electrical parameter measuring instrument verification system;
FIG. 2 is a schematic view of a multi-epitope assay platform;
FIG. 3 is a schematic view (top view) of the junction box;
FIG. 4 is a schematic view (side view) of a terminal block location;
fig. 5 is a schematic diagram of a built-in test circuit of the multi-epitope verification station.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
The invention aims to provide a multifunctional electric power parameter measuring instrument verification system which can simultaneously verify 4 multifunctional electric power parameter measuring instruments and can realize semi-automatic wiring and automatic verification of the multifunctional electric power parameter measuring instruments. The operation and conversion steps in the verification are reduced, the verification time is shortened, and the verification efficiency is improved; potential safety hazards caused by misoperation in the verification process are reduced, and the verification safety is improved; the workload of manual recording and data processing is reduced, the data can be automatically collected and processed, the metering mark is printed, and all the work involved in the detection is automatically completed.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a multifunctional electric power parameter measuring instrument verification system comprises a main control computer, a multi-epitope verification platform, a calibration source, an electronic tag recognizer, a tag printer and at least 1 multifunctional electric power parameter measuring instrument.
The main control computer is connected with the multi-epitope verification platform through an RS485-USB data line, connected with the calibration source through a GPIB-USB data line, and connected with the electronic tag recognizer and the tag printer through a network cable. The multi-epitope verification platform is connected with a calibration source through a test line. The multifunctional power parameter measuring instrument is placed in a junction box of the multi-epitope verification table.
The multi-epitope verification platform comprises a voltage input end V +, a voltage input end V-, a current input end I +, an I-and an RS485 communication interface D0+、D 1220V AC power input interface, 4 junction boxes and built-in test circuit.
And the voltage input end and the current input end are used for connecting the voltage output end and the current output end of the calibration source. And the RS485 interface is used for communicating the main control computer with the multifunctional power parameter measuring instrument in the junction box. The 220V alternating current power supply input interface is used for supplying power to the multifunctional power parameter measuring instrument in the junction box.
The junction box in the multi-epitope verification platform conforms to the size of the multifunctional power parameter measuring instrument and comprises a box body, a box cover and a buckle. The bottom of the junction box is provided with a voltage interface V1、V2、V3、VNCurrent interface I1+、I1-、I2+、I2-、I3+、I3-, power interface L +, N-, RS485 communication interface D0+、D1-. The voltage interface, the current interface, the power interface and the RS485 communication interface terminal are internally provided with springs and are connected with corresponding interfaces of the verification platform through a built-in test circuit. A plurality of female buttons are arranged in the middle of the side surface of the junction box from top to bottom. Two male buckles are arranged on the side face of the box cover. The multifunctional power parameter measuring instrument is placed into the junction box, so that the voltage, the current, the power supply and the communication wiring terminal of the multifunctional power parameter measuring instrument correspond to the voltage, the current, the power supply and the communication interface terminal of the junction box one by one, the box cover is covered and is pressed downwards, the stress of each interface terminal spring in the junction box is self-adjusted in torque, so that the wiring terminal of the multifunctional power parameter measuring instrument is well contacted with each corresponding interface terminal in the junction box, and the male buckle of the box cover is slid to be tightly clamped with the female buckle at the corresponding height, so that wiring is completed.
The built-in test circuit is
(1) Each terminal box V1Voltage input end V + and V of connecting verification platformNVoltage input end V-, V-of the connection verification platform2By connecting the voltage input end V + or V-, V of the verification platform by a program control switch3The voltage input end V-or V + of the verification platform is connected by the program control switch to form a voltage parallel loop.
(2) Each terminal box I1-and I2+ connect, I2-and I3+ connected. 1# terminal box I1+ connect the current input end I +, I of the verification platform1-and I2+ connect, I2-and I3+ connect, I3-connecting the current input I-of the certification platform or I of the 2# junction box by means of a programmable switch1I of + 2# junction box3-connecting the current input I-of the certification platform or I of the 3# junction box by means of a programmable switch1I of + 3# junction box3-connecting the current input of the certification platform I-or the I of the 4# junction box by means of a programmable switch1I of + 4# junction box3-connecting the certification stand current input terminal I-to form a current series circuit.
(3) The L + end of the power supply of each junction box is connected with a live wire of a 220V power supply input interface of the verification platform, and the N-end of the power supply of each junction box is connected with a zero wire of the 220V power supply input interface of the verification platform.
(4) RS485 communication interface D of each junction box0+ and verification station RS485 communication interface D0+ connected RS485 communication interface D of each junction box1Interface D for communication with verification station RS4851-a connection.
The electronic tag recognizer is connected with the main control computer through a network cable, recognizes the electronic tag pasted on the detected multifunctional power parameter measuring instrument, obtains the information, such as the name, the model, the serial number, the communication address, the entrusting unit and the like of the detected multifunctional power parameter measuring instrument recorded in the electronic tag, and transmits the obtained information to the main control computer.
And the label printer is used for printing the metering mark conforming to the verification result.
A multifunctional power parameter measuring instrument calibration method comprises the following steps:
(1) the multifunctional power parameter measuring instrument is manually placed in the junction box, and the junction box is covered with the box cover to be compressed and clamped by the buckle to complete wiring.
(2) And connecting the main control computer with the multi-epitope verification station, the calibration source, the electronic tag recognizer and the tag printer.
(3) And correspondingly connecting the voltage output HI end and the LO end of the calibration source with the voltage input end V +, V-of the multi-epitope verification table by using test lines, and correspondingly connecting the current output HI end and the LO end of the calibration source with the current input end I +, I-of the multi-epitope verification table.
(4) And identifying the electronic tag posted on the detected multifunctional power parameter measuring instrument, and transmitting the acquired information to the main control computer.
(5) The main control computer calls program control commands, verification schemes, technical indexes and the like of corresponding models in the database according to the models of the detected multifunctional power parameter measuring instruments, and controls the program control switches of the junction boxes to enable V + to be connected with V2V-connection V3. At this time, V + is connected to V1、V2V-connection VN、V3Controlling the calibration source to output corresponding voltage and reading each multifunctional power parameter measuring instrument V1N、V2N、V13、V23And (4) indicating the value. V1NIs a V1And VNThe voltage values in between, and the rest are similar. Control calibration source to output corresponding frequency and read multifunctional power parameter measuring instrument f1、f2Indicating the values, respectively corresponding to the voltages V1N、V2NOf (c) is detected. Controlling the program-controlled switches of the junction boxes to make V + connect with V3V-connection V2Controlling the calibration source to output corresponding voltage and reading each multifunctional power parameter measuring instrument V3N、V12Is shown. Controlling the calibration source to output corresponding frequency and reading each multifunctional power parameter measuring instrument f3Indicating value, corresponding to voltage V3NOf (c) is detected. Controlling the calibration source to output corresponding current and reading each multifunctional electric power parameter measuring instrument I1、I2、I3And (4) indicating the value.
(6) And (4) calculating indicating value errors by the main control computer and judging verification results.
(7) And the master control computer controls the label printer to print the metering mark according with the verification result.
The invention has the following advantages:
(1) the invention provides a junction box capable of semi-automatically connecting wires.
(2) The invention provides a built-in test circuit, which is used for testing the voltage function in parallel and the current function in series, can test the three-phase multifunctional power parameter measuring instrument by using a single calibration source, can simultaneously test three-way voltage or three-way current of the tested multifunctional power parameter measuring instrument, shortens the testing time and improves the testing efficiency.
(3) The invention provides a built-in test circuit, a line program control change-over switch is built in, wires do not need to be changed in the test process, the test process is simplified, the verification time can be shortened, the verification efficiency is improved, the working intensity of personnel is reduced, and the risk in verification is reduced.
(4) The verification platform is provided with 4 junction boxes, the junction boxes are simple and convenient to operate, the junction boxes are in good contact with the detected multifunctional power parameter measuring instrument, at most, 4 multifunctional power parameter measuring instruments can be verified simultaneously, and verification efficiency is improved.
(5) The invention can automatically collect and process data, judge verification conclusion, print metering marks and automatically complete all the work involved in the verification.
Example 1
The invention provides a multifunctional power parameter measuring instrument calibration system and a calibration method thereof, and the calibration system specifically comprises the following steps:
a multifunctional electric power parameter measuring instrument verification system comprises a main control computer, a multi-epitope verification platform, a calibration source, an electronic tag recognizer, a tag printer and at least one multifunctional electric power parameter measuring instrument.
The multifunctional power parameter measuring instrument is manually placed in the junction box, and the box cover is covered to be compressed and clamped by the buckle to finish wiring.
The RS485-USB data line is connected with the main control computer and the multi-epitope verification station, the GPIB-USB data line is connected with the main control computer and the calibration source, and the network cable is connected with the main control computer, the electronic tag recognizer and the tag printer.
The calibration source and the multi-epitope verification station were connected with a test line.
And identifying the electronic tag attached to the multifunctional power parameter measuring instrument by using an electronic tag identifier, and transmitting the acquired information such as the name, the model, the serial number, the communication address, the entrusting unit and the like to the main control computer.
The main control computer calls program control commands, verification schemes, technical indexes and the like of corresponding models in the database according to the models of the detected multifunctional power parameter measuring instruments, and controls the program control switches of the junction boxes to enable V + to be connected with V2V-connection V3Controlling the calibration source to output corresponding voltage and reading each multifunctional power parameter measuring instrument V1N、V2N、V13、V23And (4) indicating the value. Controlling the calibration source to output corresponding frequency and reading each multifunctional power parameter measuring instrument f1、f2And (4) indicating the value. Controlling the program-controlled switches of the junction boxes to make V + connect with V3V-connection V2Controlling the calibration source to output corresponding voltage and reading each multifunctional power parameter measuring instrument V3N、V12Is shown. Controlling the calibration source to output corresponding frequency and reading each multifunctional power parameter measuring instrument f3And (4) indicating the value. Controlling the calibration source to output corresponding current and reading each multifunctional electric power parameter measuring instrument I1、I2、I3And (4) indicating the value.
And (4) calculating indicating value errors by the main control computer and judging verification results.
And the master control computer controls the label printer to print the metering mark according with the verification result.
Example 2
A multifunctional electrical parameter measurement instrument verification system, comprising:
the system comprises a main control computer, a multi-epitope verification platform, a calibration source, an electronic tag recognizer, a tag printer and at least one multifunctional power parameter measuring instrument.
The main control computer is connected with the multi-epitope verification station, the calibration source, the electronic tag recognizer and the tag printer. The multi-epitope verification platform is connected with a calibration source.
Further, the communication interface D comprises a voltage input end V +, a V-, and a current input end I +, an I-, and an RS485 communication interface0+、D 1220V power input interface, 4 junction boxes and built-in test circuit.
Furthermore, the size of the junction box conforms to the size of the multifunctional power parameter measuring instrument, and the junction box comprises a box body, a box cover and a buckle.
The bottom of the junction box is provided with a voltage interface V1、V2、V3、VNCurrent interface I1+、I1-、I2+、I2-、I3+、I3-, power interface L +, N-, RS485 communication interface D0+、D1The interface terminals are provided with springs and are connected with corresponding interfaces of the verification platform through built-in test circuits.
A plurality of female buttons are arranged in the middle of the side surface of the junction box from top to bottom.
Two male buckles are arranged on the side face of the junction box cover and can be tightly clamped with female buckles on the side face of the junction box.
Further, (1) V in each junction box1Voltage input end V + and V of connecting verification platformNVoltage input end V-, V-of the connection verification platform2By connecting the voltage input end V + or V-, V of the verification platform by a program control switch3The voltage input end V-or V + of the verification platform is connected by the program control switch to form a voltage parallel loop.
(2) Each terminal box I1-and I2+ connect, I2-and I3+ connected. 1# terminal box I1+ connect the current input end I +, I of the verification platform3-connecting the current input I-of the certification platform or I of the 2# junction box by means of a programmable switch1I of + 2# junction box3-connecting the current input I-of the certification platform or I of the 3# junction box by means of a programmable switch1I of + 3# junction box3-connecting the current input of the certification platform I-or the I of the 4# junction box by means of a programmable switch1I of + 4# junction box3-connecting the certification stand current input terminal I-to form a current series circuit.
(3) The L + end of the power supply of each junction box is connected with a live wire of a 220V power supply input interface of the verification platform, and the N-end of the power supply of each junction box is connected with a zero wire of the 220V power supply input interface of the verification platform.
(4) RS485 communication interface D of each junction box0+ and verification station RS485 communication interface D0+ connected RS485 communication interface D of each junction box1Interface D for communication with verification station RS4851-a connection.
The invention also provides a method for calibrating the multifunctional power parameter measuring instrument, which comprises the following steps:
(1) manually placing the multifunctional power parameter measuring instrument in a junction box of the multi-epitope verification platform, covering the box cover and pressing the box cover downwards, enabling the connecting terminal of the multifunctional power parameter measuring instrument to be detected to be well contacted with each corresponding interface terminal in the junction box by each interface terminal spring stressed by self-adjusting moment, and sliding the male buckle of the box cover to be tightly clamped with the female buckle at the corresponding height to finish wiring.
(2) And connecting the main control computer with the multi-epitope verification station, the calibration source, the electronic tag recognizer and the tag printer.
(3) The calibration source is connected to a multi-epitope verification station.
(4) And identifying the electronic tag posted on the multifunctional power parameter measuring instrument, and transmitting the acquired information to the main control computer.
(5) The main control computer calls program control commands, verification schemes and technical indexes of corresponding models in the database according to the models of the multifunctional power parameter measuring instruments, and controls the program control switches of the junction boxes to enable V + to be connected with V2V-connection V3Controlling the calibration source to output corresponding voltage and reading each multifunctional power parameter measuring instrument V1N、V2N、V13、V23And (4) indicating the value. Controlling the calibration source to output corresponding frequency and reading each multifunctional power parameter measuring instrument f1、f2And (4) indicating the value. Controlling the program-controlled switches of the junction boxes to make V + connect with V3V-connection V2Controlling the calibration source to output corresponding voltage and reading each multifunctional power parameter measuring instrument V3N、V12Is shown. The calibration source is controlled to output a corresponding frequency,multifunctional electric power parameter reading measuring instrument f3And (4) indicating the value. Controlling the calibration source to output corresponding current and reading each multifunctional electric power parameter measuring instrument I1、I2、I3And (4) indicating the value.
(6) And (4) calculating indicating value errors by the main control computer and judging verification results.
(7) And the master control computer controls the label printer to print the metering mark according with the verification result.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A multifunctional electric power parameter measuring instrument verification system is characterized by comprising a main control computer, a multi-epitope verification platform, a calibration source, an electronic tag recognizer, a tag printer and at least 1 multifunctional electric power parameter measuring instrument;
the main control computer is connected with the multi-epitope verification platform through an RS485-USB data line, connected with the calibration source through a GPIB-USB data line, and connected with the electronic tag recognizer and the tag printer through a network cable;
the multi-epitope verification platform is connected with a calibration source through a test line, and the multifunctional power parameter measuring instrument is placed in a junction box of the multi-epitope verification platform;
the multi-epitope verification platform comprises a voltage input end V +, a voltage input end V-, a current input end I +, an I-and an RS485 communication interface D0+、D1220V ac power input interface, 4 junction boxes and built-in test circuit;
the voltage input end and the current input end are used for connecting the voltage output end and the current output end of the calibration source; the RS485 interface is used for communicating the main control computer and the multifunctional electric power parameter measuring instrument in the junction box, and the 220V alternating current power supply input interface is used for supplying power to the multifunctional electric power parameter measuring instrument in the junction box.
2. The multifunctional electrical parameter measurement instrument verification system as claimed in claim 1, wherein the terminal box in the multi-epitope verification station conforms to the size of the multifunctional electrical parameter measurement instrument, and comprises a box body, a box cover and a buckle.
3. The multifunctional electrical parameter measuring instrument verification system as claimed in claim 2, wherein the bottom of the junction box has a voltage interface V1、V2、V3、VNCurrent interface I1+、I1-、I2+、I2-、I3+、I3-, power interface L +, N-, RS485 communication interface D0+、D1The voltage interface, the current interface, the power interface and the RS485 communication interface terminal are provided with springs, and are connected with corresponding interfaces of the calibration stand through a built-in test circuit.
4. The multifunctional electrical parameter measuring instrument verification system as claimed in claim 3, wherein a plurality of female fasteners are arranged in the middle of the side surface of the junction box from top to bottom, and two male fasteners are arranged on the side surface of the junction box.
5. The multifunctional electrical parameter measuring instrument verification system as claimed in claim 4, wherein the multifunctional electrical parameter measuring instrument is placed in the junction box, so that the voltage, current, power supply and communication connection terminal of the multifunctional electrical parameter measuring instrument correspond to the voltage, current, power supply and communication interface terminal of the junction box in a one-to-one manner, the box cover is covered and pressed downwards, each interface terminal spring in the junction box is stressed by a self-adjusting moment to enable the multifunctional electrical parameter measuring instrument connection terminal to be in good contact with each corresponding interface terminal in the junction box, and the box cover male buckle is slid to be tightly clamped with the female buckle at the corresponding height, so that connection is completed.
6. The multifunctional electrical parameter meter verification system according to any one of claims 3-5, wherein the built-in test circuit comprises: each terminal box V1Voltage input end V + and V of connecting verification platformNConnection ofVoltage input end V-, V-of the verification platform2By connecting the voltage input end V + or V-, V of the verification platform by a program control switch3The voltage input end V-or V + of the verification platform is connected by the program control switch to form a voltage parallel loop.
7. The multifunctional electrical parameter meter verification system of claim 6, wherein the built-in test circuit further comprises: each terminal box I1-and I2+ connect, I2-and I3+ connection; 1# terminal box I1+ connect the current input end I +, I of the verification platform1-and I2+ connect, I2-and I3+ connect, I3-connecting the current input I-of the certification platform or I of the 2# junction box by means of a programmable switch1I of + 2# junction box3-connecting the current input I-of the certification platform or I of the 3# junction box by means of a programmable switch1I of + 3# junction box3-connecting the current input of the certification platform I-or the I of the 4# junction box by means of a programmable switch1I of + 4# junction box3-connecting the certification stand current input terminal I-to form a current series circuit.
8. The multifunctional electrical parameter meter verification system of claim 7, wherein the built-in test circuit further comprises: the L + end of the power supply of each junction box is connected with a live wire of a 220V power supply input interface of the verification platform, and the N-end of the power supply of each junction box is connected with a zero wire of the 220V power supply input interface of the verification platform.
9. The multifunctional electrical parameter meter verification system of claim 7, wherein the built-in test circuit further comprises: RS485 communication interface D of each junction box0+ and verification station RS485 communication interface D0+ connected RS485 communication interface D of each junction box1Interface D for communication with verification station RS4851-a connection.
10. The multifunctional power parameter measuring instrument verification system as claimed in any one of claims 6 to 9, wherein the electronic tag identifier is connected to the host computer through a network cable, identifies the electronic tag attached to the multifunctional power parameter measuring instrument to be tested, acquires information of the multifunctional power parameter measuring instrument to be tested recorded in the electronic tag, and transmits the acquired information to the host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116380338A (en) * | 2023-04-04 | 2023-07-04 | 广东中南钢铁股份有限公司 | A pressure gauge verification system and verification method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654570A (en) * | 2011-03-04 | 2012-09-05 | 河北省电力研究院 | Method for semi-automatically testing/calibrating instrument without programmable interface |
| CN103064050A (en) * | 2013-01-16 | 2013-04-24 | 南京天溯自动化控制系统有限公司 | Multi-instrument correcting device and correcting method |
| CN104698428A (en) * | 2015-04-08 | 2015-06-10 | 南京天溯自动化控制系统有限公司 | Multi-electric-energy-meter automated testing method |
| CN204439818U (en) * | 2015-03-12 | 2015-07-01 | 苏州工业园区鼎盛电气有限公司 | A kind of multi-epitope voltage monitoring instrument automatic test and calibrate system |
| CN207689656U (en) * | 2018-01-11 | 2018-08-03 | 广东电网有限责任公司电力科学研究院 | A kind of multi-epitope direct-current electric energy meter calibrating device |
| CN108919019A (en) * | 2018-09-28 | 2018-11-30 | 国网辽宁省电力有限公司电力科学研究院 | A kind of Application of Power Metering Instruments electromagnetic compatibility test system |
-
2021
- 2021-11-01 CN CN202111282321.1A patent/CN114002471A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654570A (en) * | 2011-03-04 | 2012-09-05 | 河北省电力研究院 | Method for semi-automatically testing/calibrating instrument without programmable interface |
| CN103064050A (en) * | 2013-01-16 | 2013-04-24 | 南京天溯自动化控制系统有限公司 | Multi-instrument correcting device and correcting method |
| CN204439818U (en) * | 2015-03-12 | 2015-07-01 | 苏州工业园区鼎盛电气有限公司 | A kind of multi-epitope voltage monitoring instrument automatic test and calibrate system |
| CN104698428A (en) * | 2015-04-08 | 2015-06-10 | 南京天溯自动化控制系统有限公司 | Multi-electric-energy-meter automated testing method |
| CN207689656U (en) * | 2018-01-11 | 2018-08-03 | 广东电网有限责任公司电力科学研究院 | A kind of multi-epitope direct-current electric energy meter calibrating device |
| CN108919019A (en) * | 2018-09-28 | 2018-11-30 | 国网辽宁省电力有限公司电力科学研究院 | A kind of Application of Power Metering Instruments electromagnetic compatibility test system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116380338A (en) * | 2023-04-04 | 2023-07-04 | 广东中南钢铁股份有限公司 | A pressure gauge verification system and verification method |
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