CN102236046B - Method for detecting voltage monitoring function of electricity utilization management terminals in batches - Google Patents
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Abstract
The invention relates to a method for detecting the voltage monitoring function of electricity utilization management terminals in batches, which comprises the following steps of: 1, connecting a plurality of terminals to be detected with voltage current wires and hanging on a meter hanging frame; 2, setting the communication connection of the terminals to be detected and a personal computer (PC); 3, setting the connection mode and voltage and current basic parameters of the terminals to be detected by using the PC; 4, setting or calling a prestored testing scheme by using PC software; 5, sending an instruction to the terminals to be detected and a source meter control cabinet by using the PC, outputting various voltage environments, and testing the terminals to be detected; and 6, reading the voltage current value of a standard meter through a serial port and calculating real voltage monitoring data in turn by using the PC, reading the voltage monitoring data of the terminals through a PC network, and comparing with the voltage monitoring value of the standard meter to obtain a conclusion. The method solves the problems that the indoor detection process is complicated, actual detection time is overlong, workload is high and the like in the conventional detection method, and has the advantages of high production testing efficiency, accurate and reliable testing result and the like.
Description
Technical field
The present invention relates to the field tests of electricity management terminal function of voltage monitoring, a kind of method of detecting voltage monitoring function of electricity utilization management terminals in batches is provided.
Background technology
Whether qualified the function of voltage monitoring of electricity management terminal equipment is needs to detect, existing detection method is mainly artificial to measured terminal equipment, to add electric current and voltage, and wait truly the corresponding time to be recorded, then scene is checked the terminal record or is utilized the single voltage monitoring data of reading the electricity management terminal record of calling together such as main website program, terminal supervisory program to compare detection.Detect like this to get up to waste time and energy, in testing process manual operation safe not, need to wait for for a long time, and can only detect a terminal at every turn.
Such method not only can't meet existing each electricity management terminal producer and the high efficiency meter inspection work of metrological service of Utilities Electric Co., can not carry out to the function of voltage monitoring of electricity management terminal detailed detection comprehensively.
Summary of the invention
For efficiency and the accuracy problem that the function of voltage monitoring that solves existing electricity management terminal equipment detects, the invention provides a kind of method of detecting voltage monitoring function of electricity utilization management terminals in batches.
To achieve these goals, the batch detector methods that the present invention takes comprises the following steps:
A. a plurality of measured terminals connected to the voltage and current line and hang on meter hanging frame;
B. set being connected of measured terminal and PC communication;
C. set the basic parameter such as the mode of connection, voltage, electric current of measured terminal by PC software;
D. by the setting of PC software or call the electricity management terminal voltage monitoring testing scheme of pre-save;
E. send instruction by PC to measured terminal and three phase power source, export various voltage environment, measured terminal is tested automatically;
F. finally by the PC network, call the voltage monitoring data of reading measured terminal together, and compare with the voltage monitoring data value of standard scale, draw efficiency and the accuracy conclusion of measured terminal function of voltage monitoring.
In described step F, measured terminal is automatically tested and comprised: single-phase voltage Monitoring Data test, mix the test of phase voltage Monitoring Data and across moon voltage monitoring data test.
Described single-phase voltage Monitoring Data test comprises the following steps:
1) design a plurality of scheme subitems by PC, each scheme subitem is that three phase power source is exported certain phase voltage get a value in the 0%-150% of normal voltage scope, and other two-phases are 70%U; Certain phase current is got a value in the 0%-100% of normalized current scope; Other two-phases are 100%I;
2) export three-phase 70%U voltage and three-phase 100%I electric current and make terminal move and be more than or equal to 1 minute under this electric current and voltage by PC power ratio control source;
3) by scheme subitem order, PC is controlled set each phase voltage and the electric current of three phase power source output scheme sub-project, and record the moment t1 that each scheme subitem starts, the duration T minute (T>=3) that the operating scheme sub-project is set, record moment t2 and current/voltage value and the actual duration now by PC again, carry out one time step 2) and then carry out next scheme subitem, so be circulated to all scheme subitems and all be finished;
4) by PC according to 3) certain phase current magnitude of voltage of recording and actual duration calculate the theoretical voltage Monitoring Data and comprise: single-phase voltage qualification rate, single-phase super upper limit rate, single-phase super lower limit rate;
5) call by PC the voltage monitoring data of reading measured terminal record together, and with 4) described theoretical value relatively, calculate error, if error in allowed limits be judged as qualifiedly, otherwise is defective.
The detection of another two-phase also can be carried out equally.
The inspection of described mixing phase voltage Monitoring Data comprises the following steps:
1) design a plurality of scheme subitems, each phase voltage that each scheme subitem is three phase power source output is got a value in the 0%-150% of normal voltage scope, and each phase current of output is got a value in the 0%-100% of normalized current scope;
2) export three-phase 70%U voltage and three-phase 100%I electric current and make terminal move and be more than or equal to 1 minute under this electric current and voltage by PC power ratio control source;
3) by scheme subitem order, PC is controlled set each phase voltage and the electric current of three phase power source output scheme sub-project, and record the moment t1 that each scheme subitem starts, the duration T minute (T>=3) that the operating scheme sub-project is set, record moment t2 and current/voltage value and the actual duration now by PC again, carry out one time step 2) and then carry out next scheme subitem, so be circulated to all scheme subitems and all be finished;
4) by PC according to 3) the current/voltage value that records and actual duration calculate the theoretical voltage Monitoring Data, comprising: the mixed phase rate of qualified voltage; The super upper limit rate of mixed phase voltage; The super lower limit rate of mixed phase voltage;
5) call by PC the voltage monitoring data of reading measured terminal record together, and with 5) described theoretical value relatively, calculate error, if error in allowed limits be judged as qualifiedly, otherwise is defective.
Describedly across moon voltage data inspection, comprise the following steps:
1) design a plurality of scheme subitems by PC, each scheme subitem is that three phase power source is exported certain phase voltage get a value in the 0%-150% of normal voltage scope, and other two-phases are 70%U; Certain phase current is got a value in the 0%-100% of normalized current scope; Other two-phases are 100%I;
2) by PC power ratio control source output three-phase 70%U voltage and three-phase 100%I electric current, make terminal move and be more than or equal to 1 minute under this electric current and voltage;
2) is set constantly measured terminal time to the end of month by PC, the time gap on 24 o'clock this moment from same day is less than all scheme subitems required time that all is finished;
3) by scheme subitem order, PC is controlled set each phase voltage and the electric current of three phase power source output scheme sub-project, and record the moment t1 that each scheme subitem starts, the duration T minute (T>=3) that the operating scheme sub-project is set, record moment t2 and current/voltage value and the actual duration now by PC again, carry out one time step 2) and then carry out next scheme subitem, so be circulated to all scheme subitems and all be finished;
4) by PC according to 3) the voltage monitoring data of the theory that calculates of the current/voltage value in this month of recording and actual duration, comprising: of that month mixed phase rate of qualified voltage; The super upper limit rate of of that month mixed phase voltage; The super lower limit rate of of that month mixed phase voltage;
5) call by PC the voltage monitoring data of reading measured terminal record together, and with 4) described theoretical value relatively, calculate error, if error in allowed limits be judged as qualifiedly, otherwise is defective.
The batch detector methods of electricity management terminal function of voltage monitoring of the present invention equipment used comprises: for PC from the control sourse instruction to three phase power source that send, for the three phase power source in the source of rising, for the standard scale that obtains actual current voltage, when obtaining the standard of standard time Ji Yuan and for and connect the meter hanging frame of a plurality of measured terminals of carry; Described PC has control line to be electrically connected to each parts and measured terminal, and described three phase power source is connected with a plurality of measured terminal live wires, and electric current line and the pressure-wire of a plurality of measured terminals are attempted by described meter hanging frame.
It is by GPRS/CDMA network and serial ports RS232 that described PC is connected with the communication of tested terminal.
Described measured terminal is the electricity management terminal that meets DL/T 500 voltage monitoring instruments and possess function of voltage monitoring.
Beneficial effect of the present invention is: the invention solves the existing indoor testing process of electricity management terminal function of voltage monitoring loaded down with trivial details, and the problem such as actual detection time is long, and workload is large, the efficiency with production test is high, and test result waits advantage accurately and reliably.
The accompanying drawing explanation
Below the present invention is described in further detail for the set the drawings and specific embodiments.
Fig. 1 is the process flow diagram of method of testing in the method for a kind of detecting voltage monitoring function of electricity utilization management terminals in batches of the present invention;
Fig. 2 is device structure schematic diagram described in the method for a kind of detecting voltage monitoring function of electricity utilization management terminals in batches of the present invention;
Fig. 3 is the wiring diagram (take three-phase and four-line as example) of three phase power source and a plurality of measured terminals in the method for a kind of detecting voltage monitoring function of electricity utilization management terminals in batches of the present invention;
Fig. 4 is the Communication Graph of PC and each equipment room in the method for a kind of detecting voltage monitoring function of electricity utilization management terminals in batches of the present invention.
Embodiment
Shown in Fig. 2 and Fig. 3, batch detector methods of the present invention equipment used comprises: for PC 1 from the control sourse instruction to three phase power source that send, for the three phase power source 2 in the source of rising, for the standard scale 4 that obtains actual current voltage, when obtaining the standard of standard time base source 3 and for and connect the meter hanging frame 5 of a plurality of measured terminals 6 of carry; Described PC has control line to be electrically connected to each parts and measured terminal, and described three phase power source is connected with a plurality of measured terminal live wires, and the electric current line of a plurality of measured terminals and pressure-wire are attempted by described meter hanging frame; It is by GPRS/CDMA network and serial ports RS232 that PC is connected with the communication of tested terminal, and measured terminal is the electricity management terminal that meets DL/T 500 voltage monitoring instruments and possess function of voltage monitoring.
Referring to Fig. 1, the batch detector methods step of electricity management terminal function of voltage monitoring of the present invention is as follows:
A. a plurality of measured terminals connected to the voltage and current line and hang on meter hanging frame;
B. set being connected of measured terminal and PC communication;
C. set the basic parameter such as the mode of connection, voltage, electric current of measured terminal by PC software;
D. by the setting of PC software or call the electricity management terminal voltage monitoring testing scheme of pre-save;
E. send instruction by PC to measured terminal and three phase power source, export various voltage environment, measured terminal is tested automatically;
F. finally by the PC network, call the voltage monitoring data of reading measured terminal together, and compare with the voltage monitoring data value of standard scale, draw efficiency and the accuracy conclusion of measured terminal function of voltage monitoring.
In described step F, measured terminal is automatically tested and comprised: single-phase voltage Monitoring Data test, mix the test of phase voltage Monitoring Data and across moon voltage monitoring data test.
Described single-phase voltage Monitoring Data test comprises the following steps:
1) design a plurality of scheme subitems by PC, each scheme subitem is that three phase power source is exported certain phase voltage get a value in the 0%-150% of normal voltage scope, and other two-phases are 70%U; Certain phase current is got a value in the 0%-100% of normalized current scope; Other two-phases are 100%I;
2) export three-phase 70%U voltage and three-phase 100%I electric current and make terminal move and be more than or equal to 1 minute under this electric current and voltage by PC power ratio control source;
3) by scheme subitem order, PC is controlled set each phase voltage and the electric current of three phase power source output scheme sub-project, and record the moment t1 that each scheme subitem starts, the duration T minute (T>=3) that the operating scheme sub-project is set, record moment t2 and current/voltage value and the actual duration now by PC again, carry out one time step 2) and then carry out next scheme subitem, so be circulated to all scheme subitems and all be finished;
4) by PC according to 3) certain phase current magnitude of voltage of recording and actual duration calculate the theoretical voltage Monitoring Data and comprise: single-phase voltage qualification rate, single-phase super upper limit rate, single-phase super lower limit rate;
5) call by PC the voltage monitoring data of reading measured terminal record together, and with 4) described theoretical value relatively, calculate error, if error in allowed limits be judged as qualifiedly, otherwise is defective.
The detection of another two-phase also can be carried out equally.
The inspection of described mixing phase voltage Monitoring Data comprises the following steps:
1) design a plurality of scheme subitems, each phase voltage that each scheme subitem is three phase power source output is got a value in the 0%-150% of normal voltage scope, and each phase current of output is got a value in the 0%-100% of normalized current scope; 2) export three-phase 70%U voltage and three-phase 100%I electric current and make terminal move and be more than or equal to 1 minute under this electric current and voltage by PC power ratio control source;
3) by scheme subitem order, PC is controlled set each phase voltage and the electric current of three phase power source output scheme sub-project, and record the moment t1 that each scheme subitem starts, the duration T minute (T>=3) that the operating scheme sub-project is set, record moment t2 and current/voltage value and the actual duration now by PC again, carry out one time step 2) and then carry out next scheme subitem, so be circulated to all scheme subitems and all be finished;
4) by PC according to 3) the current/voltage value that records and actual duration calculate the theoretical voltage Monitoring Data, comprising: the mixed phase rate of qualified voltage; The super upper limit rate of mixed phase voltage; The super lower limit rate of mixed phase voltage;
5) call by PC the voltage monitoring data of reading measured terminal record together, and with 5) described theoretical value relatively, calculate error, if error in allowed limits be judged as qualifiedly, otherwise is defective.
Describedly across moon voltage data inspection, comprise the following steps:
1) design a plurality of scheme subitems by PC, each scheme subitem is that three phase power source is exported certain phase voltage get a value in 0%150% scope of normal voltage, and other two-phases are 70%U; Certain phase current is got a value in the 0%-100% of normalized current scope; Other two-phases are 100%I;
2) by PC power ratio control source output three-phase 70%U voltage and three-phase 100%I electric current, make terminal move and be more than or equal to 1 minute under this electric current and voltage;
2) is set constantly measured terminal time to the end of month by PC, the time gap on 24 o'clock this moment from same day is less than all scheme subitems required time that all is finished;
3) by scheme subitem order, PC is controlled set each phase voltage and the electric current of three phase power source output scheme sub-project, and record the moment t1 that each scheme subitem starts, the duration T minute (T>=3) that the operating scheme sub-project is set, record moment t2 and current/voltage value and the actual duration now by PC again, carry out one time step 2) and then carry out next scheme subitem, so be circulated to all scheme subitems and all be finished;
4) by PC according to 3) the voltage monitoring data of the theory that calculates of the current/voltage value in this month of recording and actual duration, comprising: of that month mixed phase rate of qualified voltage; The super upper limit rate of of that month mixed phase voltage; The super lower limit rate of of that month mixed phase voltage;
5) call by PC the voltage monitoring data of reading measured terminal record together, and with 4) described theoretical value relatively, calculate error, if error in allowed limits be judged as qualifiedly, otherwise is defective.
Under specific practice is shown in:
Shown in Figure 1, measured terminal connected to pressure-wire in step S101 and hang on meter hanging frame; Connect the current/voltage line in step S102; Set measured terminal and PC connecting communication in step S103; In step S104 by the setting of PC software or call the terminal voltage monitoring testing scheme of pre-save; Then by PC, to measured terminal and three phase power source, send instruction again at step S105, measured terminal is tested; Call by PC the electric current and voltage data of reading standard scale together and calculate theoretical voltage monitoring data in step S106, call the voltage monitoring data of reading measured terminal together, and compare with theoretical voltage monitoring data value, draw efficiency and the accuracy conclusion of measured terminal function of voltage monitoring.
Wherein, in step S105, measured terminal is tested and specifically comprised following sub-step: sub-step S105-1, measured terminal is carried out to the inspection of single-phase voltage Monitoring Data; Sub-step S105-2, mixed the inspection of phase voltage Monitoring Data to measured terminal; Sub-step S105-3, to measured terminal across moon voltage monitoring data check.
In sub-step S105-1, step 1) described calibrating scheme is specially down:
A1: each phase voltage percent value: ua=109% of three phase power source output, ub=70%, uc=70%; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=3.
A2: each phase voltage percent value: ua=75% of three phase power source output, ub=70%, uc=70%; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=3.
A3: each phase voltage percent value: ua=91% of three phase power source output, ub=70%, uc=70%; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=3.
A4: each phase voltage percent value: ua=70% of three phase power source output, ub=109%, uc=70%; ; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=3.
A5: each phase voltage percent value: ua=70% of three phase power source output, ub=75%, uc=70%: each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=5.
A6: each phase voltage percent value: ua=70% of three phase power source output, ub=91%, uc=70%; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=3.
A7: each phase voltage percent value: ua=70% of three phase power source output, ub=70%, uc=109%; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=5.
A8: each phase voltage percent value: ua=70% of three phase power source output, ub=70%, uc=75%; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=3.
A9: each phase voltage percent value: ua=70% of three phase power source output, ub=70%, uc=91%; Each phase voltage percent value of three phase power source output: i a=ib=ic=100%; Duration T=3.
A10: each phase voltage percent value: ua=70% of three phase power source output, ub=70%, uc=106%; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=3.
A11: each phase voltage percent value: ua=70% of three phase power source output, ub=70%, uc=113%; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=3.
In sub-step S105-1, the described theoretical voltage Monitoring Data of step 4, its computing method are as follows:
And super lower limit time of the super upper limit time+voltage of voltage overtime=voltage wherein;
When while switching between different voltage magnitudes due to power source, for example voltage changes to 109%U from 90%U, the actual motion voltage (1 minute average voltage) of its monitoring moment point is 109%U not necessarily.The present invention adopts following algorithm when calculating monitoring moment point normal voltage:
Actual motion voltage U t=(t1 * u1+t2 * u2)/60
Wherein t1 is the number of seconds of monitoring moment point; The instantaneous voltage sampling that u1 is the monitoring moment point; For this minute remaining number of seconds, i.e. t2=60-t1; U2 is the voltage after the power source switching is stablized.
Sub-step S105-3 across the moon scheme subitem that checks of voltage data with sub-step S105-1.
The scheme subitem that sub-step S105-2 mixes the inspection of phase voltage Monitoring Data is:
A1: each phase voltage percent value: ua=91% of three phase power source output, ub=91%, uc=75%; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=3.
A2: each phase voltage percent value: ua=75% of three phase power source output, ub=108%, uc=108%; Each phase voltage percent value: ia=ib=ic100% of three phase power source output; Duration T=3.
A3: each phase voltage percent value: ua=100% of three phase power source output, ub=100%, uc=91%; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=3.
A4: each phase voltage percent value: ua=74% of three phase power source output, ub=74%, uc=74%; ; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=3.
A5: each phase voltage percent value: ua=73% of three phase power source output, ub=71%, uc=91%; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=5.
A6: each phase voltage percent value: ua=91% of three phase power source output, ub=91%, uc=110%; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=3.
A7: each phase voltage percent value: ua=75% of three phase power source output, ub=75%, uc=75%; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=5.
A8: each phase voltage percent value: ua=100% of three phase power source output, ub=100%, uc=75%; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=3.
A9: each phase voltage percent value: ua=100% of three phase power source output, ub=100%, uc=91%; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=3.
A10: each phase voltage percent value: ua=98% of three phase power source output, ub=100%, uc=106%; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=3.
A11: each phase voltage percent value: ua=100% of three phase power source output, ub=113%, uc=113%; Each phase voltage percent value: ia=ib=ic=100% of three phase power source output; Duration T=3.
Shown in Fig. 2 and Fig. 3, be mounted with a plurality of measured terminals (5) on meter hanging frame in the method (4); And electricity management terminal (5) tested in the method also can be based on the voltage monitoring instrument of DL/T 500;
Shown in Fig. 2 and Fig. 4, PC in the method (1) and being connected of measured terminal (5) can be that the network of GPRS/CDMA connects, and also can go here and there the connection of RS232 for this locality;
The method adopts the PC programmed control, can realize that automatic batch carries out the detection of the function of voltage monitoring of electricity management terminal, and the method also calculates theoretical value more accurately by the standard scale collection, has improved the accuracy detected; The method can also arrange different detection schemes, and can a plurality of contents of electricity management terminal function of voltage monitoring be detected, and has enriched Detection of content.Generally speaking the inventive method has improved the detection efficiency of electricity management terminal function of voltage monitoring, has alleviated the work load of electric-power metering department and the research and development debugging of terminal producer.
Claims (7)
1. the method for a detecting voltage monitoring function of electricity utilization management terminals in batches is characterized in that comprising the following steps:
A. a plurality of measured terminals connected to the voltage and current line and hang on meter hanging frame;
B. set being connected of measured terminal and PC communication;
C. set the mode of connection, voltage, the current basic parameters of measured terminal by PC software;
D. by the setting of PC software or call the electricity management terminal voltage monitoring testing scheme of pre-save;
E. send instruction by PC to measured terminal and three phase power source, export various voltage environment, measured terminal is tested automatically;
F. finally by the PC network, call the voltage monitoring data of reading measured terminal together, and compare with the voltage monitoring data value of standard scale, draw efficiency and the accuracy conclusion of measured terminal function of voltage monitoring.
2. the method for a kind of detecting voltage monitoring function of electricity utilization management terminals in batches according to claim 1 is characterized in that: in described step F, measured terminal is automatically tested and comprised: the test of single-phase voltage Monitoring Data, mix the test of phase voltage Monitoring Data and across moon voltage monitoring data test.
3. the method for a kind of detecting voltage monitoring function of electricity utilization management terminals in batches according to claim 2 is characterized in that: described single-phase voltage Monitoring Data test comprises the following steps:
1) design a plurality of scheme subitems by PC, each scheme subitem is that three phase power source is exported certain phase voltage get a value in the 0%-150% of normal voltage scope, and other two-phases are 70% normal voltage; Certain phase current is got a value in the 0%-100% of normalized current scope; Other two-phases are 100% normalized current;
2) export three-phase 70% normal voltage and three-phase 100% normalized current and make terminal move and be more than or equal to 1 minute under this electric current and voltage by PC power ratio control source;
3) by scheme subitem order, PC is controlled set each phase voltage and the electric current of three phase power source output scheme subitem, and record the moment t1 that each scheme subitem starts, the set duration T of operating scheme subitem is more than or equal to 3 minutes, record moment t2 and current/voltage value and the actual duration now by PC again, carry out one time step 2) and then carry out next scheme subitem, so be circulated to all scheme subitems and all be finished;
4) by PC according to 3) certain phase current magnitude of voltage of recording and actual duration calculate the theoretical voltage Monitoring Data and comprise: single-phase voltage qualification rate, single-phase super upper limit rate, single-phase super lower limit rate;
5) call by PC the voltage monitoring data of reading measured terminal record together, and with 4) described theoretical voltage Monitoring Data relatively, calculate error, if error in allowed limits be judged as qualifiedly, otherwise is defective;
The detection of another two-phase is carried out too.
4. the method for a kind of detecting voltage monitoring function of electricity utilization management terminals in batches according to claim 3 is characterized in that: described mixing phase voltage Monitoring Data test comprises the following steps:
1) design a plurality of scheme subitems, each phase voltage that each scheme subitem is three phase power source output is got a value in the 0%-150% of normal voltage scope, and each phase current of output is got a value in the 0%-100% of normalized current scope;
2) export three-phase 70% normal voltage and three-phase 100% normalized current and make terminal move and be more than or equal to 1 minute under this electric current and voltage by PC power ratio control source;
3) by scheme subitem order, PC is controlled set each phase voltage and the electric current of three phase power source output scheme subitem, and record the moment t1 that each scheme subitem starts, the set duration T of operating scheme subitem is more than or equal to 3 minutes, record moment t2 and current/voltage value and the actual duration now by PC again, carry out one time step 2) and then carry out next scheme subitem, so be circulated to all scheme subitems and all be finished;
4) by PC according to 3) the current/voltage value that records and actual duration calculate the theoretical voltage Monitoring Data, comprising: the mixed phase rate of qualified voltage; The super upper limit rate of mixed phase voltage; The super lower limit rate of mixed phase voltage;
5) call by PC the voltage monitoring data of reading measured terminal record together, and with 4) described theoretical voltage Monitoring Data relatively, calculate error, if error in allowed limits be judged as qualifiedly, otherwise is defective.
5. the method for a kind of detecting voltage monitoring function of electricity utilization management terminals in batches according to claim 4 is characterized in that: described across the moon voltage monitoring data test comprise the following steps:
1) design a plurality of scheme subitems by PC, each scheme subitem is that three phase power source is exported certain phase voltage get a value in the 0%-150% of normal voltage scope, and other two-phases are 70% normal voltage; Certain phase current is got a value in the 0%-100% of normalized current scope; Other two-phases are 100% normalized current;
2) by PC power ratio control source output three-phase 70% normal voltage and three-phase 100% normalized current, make terminal move and be more than or equal to 1 minute under this electric current and voltage; Is set constantly measured terminal time to the end of month by PC, the time gap on 24 o'clock this moment from same day is less than all scheme subitems required time that all is finished;
3) by scheme subitem order, PC is controlled set each phase voltage and the electric current of three phase power source output scheme subitem, and record the moment t1 that each scheme subitem starts, the set duration T of operating scheme subitem is greater than 3 minutes, record moment t2 and current/voltage value and the actual duration now by PC again, carry out one time step 2) and then carry out next scheme subitem, so be circulated to all scheme subitems and all be finished;
4) by PC according to 3) the voltage monitoring data of the theory that calculates of the current/voltage value in this month of recording and actual duration, comprising: of that month mixed phase rate of qualified voltage; The super upper limit rate of of that month mixed phase voltage; The super lower limit rate of of that month mixed phase voltage;
5) call by PC the voltage monitoring data of reading measured terminal record together, and with 4) described theoretical voltage Monitoring Data relatively, calculate error, if error in allowed limits be judged as qualifiedly, otherwise is defective.
6. according to the method equipment used of the described any one detecting voltage monitoring function of electricity utilization management terminals in batches of claim 1 to 5, it is characterized in that: comprise PC for send from the control sourse instruction to three phase power source, for the three phase power source in the source of rising, for the standard scale that obtains actual current voltage, when obtaining the standard of standard time Ji Yuan and for and connect the meter hanging frame of a plurality of measured terminals of carry; Described PC has control line to be electrically connected to each parts and measured terminal, and described three phase power source is connected with a plurality of measured terminal live wires, and electric current line and the pressure-wire of a plurality of measured terminals are attempted by described meter hanging frame.
7. equipment according to claim 6, it is characterized in that: it is by GPRS/CDMA network and serial ports RS232 that described PC is connected with the communication of tested terminal.
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| CN 201010171384 CN102236046B (en) | 2010-05-05 | 2010-05-05 | Method for detecting voltage monitoring function of electricity utilization management terminals in batches |
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| CN 201010171384 CN102236046B (en) | 2010-05-05 | 2010-05-05 | Method for detecting voltage monitoring function of electricity utilization management terminals in batches |
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| CN102236046A CN102236046A (en) | 2011-11-09 |
| CN102236046B true CN102236046B (en) | 2013-12-18 |
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| CN103713176B (en) * | 2012-09-28 | 2017-02-01 | 国家电网公司 | voltage detection device and system |
| CN105301412A (en) * | 2015-11-20 | 2016-02-03 | 国网上海市电力公司 | Method and system for automatic terminal detection |
| CN106226718B (en) * | 2016-07-12 | 2019-03-15 | 许昌继电器研究所有限公司 | A kind of device and method of batch testing Electric control or monitoring and metering instrument |
| CN107942281A (en) * | 2017-10-30 | 2018-04-20 | 华立科技股份有限公司 | The statistical method of electric energy meter rate of qualified voltage |
| CN109991469A (en) * | 2019-04-19 | 2019-07-09 | 江苏菲沃泰纳米科技有限公司 | Multiple groups circuital current detection method and system |
| CN110726866B (en) * | 2019-10-24 | 2021-09-17 | 云南云电同方科技有限公司 | High-voltage-level voltage qualification rate monitoring method and device |
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| CN101281243B (en) * | 2008-05-20 | 2011-09-07 | 深圳市科陆电子科技股份有限公司 | Device and method for testing equipotential closed loop electrical energy meter |
| CN101477184A (en) * | 2008-12-04 | 2009-07-08 | 南京正泰龙电子有限公司 | Full-automatic test system for energy management terminal |
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