CN105182078B - High voltage phasing tester on-line monitoring system and its method of work - Google Patents
High voltage phasing tester on-line monitoring system and its method of work Download PDFInfo
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- CN105182078B CN105182078B CN201510646641.9A CN201510646641A CN105182078B CN 105182078 B CN105182078 B CN 105182078B CN 201510646641 A CN201510646641 A CN 201510646641A CN 105182078 B CN105182078 B CN 105182078B
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Abstract
The present invention relates to a kind of high voltage phasing tester on-line monitoring system and its method of work, this high voltage phasing tester on-line monitoring system, including：The first slave positioned at former circuit, the second slave positioned at test line；First, second slave is suitable to respectively send the voltage induced signal on former circuit, test line to main frame；The main frame is suitable to the voltage phase difference and/or Amplitude Ration that former circuit and test line are obtained by relevant voltage induced signal.The present invention realizes that slave interconnects with main frame by wireless communication module, gathers the voltage induced signal of former circuit, test line respectively by corresponding slave, and avoiding traditional phasing tester needs staff to climb electric pole, ensure that personal security.
Description
Technical field
The present invention relates to high voltage supply test device technical field, and in particular to a kind of high voltage phasing tester on-line monitoring system
And its method of work.
Background technology
Under higher voltage condition, security and easy use are primary factors, and traditional phasing tester needs in test
Hot line job is wanted, potential safety hazard be present, when being tested between multi-line.Cumbersome, efficiency is low, and easily error.
Therefore, how on the basis of potential safety hazard is reduced, the technology that phasing tester phase-detection precision is this area is improved
Problem.
The content of the invention
It is an object of the invention to provide a kind of high voltage phasing tester on-line monitoring system and its method of work, to realize to former line
Road, test line carry out nuclear phase.
In order to solve the above-mentioned technical problem, the invention provides a kind of high voltage phasing tester on-line monitoring system, including：It is located at
First slave of former circuit, the second slave positioned at test line；First, second slave is suitable to respectively by former circuit, quilt
Voltage induced signal on survey line road is sent to main frame；The main frame be suitable to by relevant voltage induced signal obtain former circuit with
The voltage phase difference and/or Amplitude Ration of test line.
Further, first slave is identical with the second slave structure, and all includes：Non-contact voltage transducer, with
The connected signal acquisition process module of non-contact voltage transducer, and be connected with the signal acquisition process module from processing
Module, it is described to be suitable to the voltage induced signal on former circuit or test line being converted to square wave from processing module, and pass through nothing
Line communication module sends two square waves to main frame simultaneously；The main frame is suitable to calculate former circuit, test line by two square waves
Upper voltage phase difference and/or Amplitude Ration.
Further, first slave and the second slave export square wave A and square wave B to main frame respectively；The main frame is suitable to
Former circuit, the voltage phase difference on test line are calculated by two square waves, i.e., the primary processor in described main frame is suitable to setting
Timeorigin, and compare according to the timeorigin square wave A and square wave B phase difference；It is right in square wave A since timeorigin
In a positive half cycle, occur leading edge position first and be labeled as a points, and it is c points that square wave A into trailing edge position mark occurs；
And in square wave B, for a negative half period, it is b points to occur trailing edge position mark first, and by square wave B rising edge
Position mark is d points；Determine that trigger interval time T1, b point determines trigger interval time T2, c with c points by above-mentioned a points and b points
Point and d points determine trigger interval time T3；And square wave A and square wave B phase difference are determined by the above-mentioned trigger interval timeφ, i.e.,
。
Further, the primary processor is further adapted for calculating each phase of square wave A and square wave B in follow-up each square-wave cycle
Differenceφ, and it is used as the voltage phase difference by repeatedly calculating the average phase-difference averaged to obtain square wave A and square wave B.
Further, the main frame is suitable to calculate former circuit, the voltage magnitude ratio on test line, i.e. institute by two square waves
The primary processor stated in main frame is suitable to by square wave A compared with square wave B amplitude, to obtain the voltage magnitude ratio；And pass through
Repeatedly calculate try to achieve the voltage magnitude than average value.
Another aspect, present invention also offers a kind of method of high voltage phasing tester on-line monitoring system, including：
Step S1, gather former circuit, the voltage induced signal on test line；
Step S2, the voltage phase difference and/or amplitude of former circuit and test line are obtained by the voltage induced signal
Than.
Further, the voltage-phase of former circuit and test line is obtained in the step S2 by the voltage induced signal
Difference and/or the method for Amplitude Ration include：
Voltage induced signal on former circuit, test line is converted into square wave, and by two square waves calculate former circuit,
Voltage phase difference and/or Amplitude Ration on test line.
Further, by the way that two square waves calculate former circuit, the method for voltage phase difference includes on test line：Setting time
Origin, and compare according to the timeorigin square wave A and square wave B phase difference；Since timeorigin, in square wave A, for one
Individual positive half cycle, occur leading edge position first and be labeled as a points, and it is c points that square wave A into trailing edge position mark occurs；And
In square wave B, for a negative half period, it is b points to occur trailing edge position mark first, and by square wave B leading edge position
Labeled as d points；By above-mentioned a points and b points determine trigger interval time T1, b point and c points determine trigger interval time T2, c point and
D points determine trigger interval time T3；And square wave A and square wave B phase difference are determined by the above-mentioned trigger interval timeφ, i.e.,
。
Further, by the way that two square waves calculate former circuit, the method for voltage phase difference also includes on test line：Calculate
Each phase differences of the square wave A and square wave B in follow-up each square-wave cycleφ, and averaged by repeatedly calculating to obtain square wave A
Average phase-difference with square wave B is as the voltage phase difference.
Further, by two square waves calculate former circuit, the voltage magnitude on test line than method include：
By square wave A compared with square wave B amplitude, to obtain the voltage magnitude ratio；And try to achieve institute by repeatedly calculating
State voltage magnitude than average value.
First, second slave includes being used for shell, the mounting bracket being connected with the shell for accommodating circuit board and battery；
Described method of work also includes first, second slave is suspended into the former circuit respectively, on test line using hanger；It is described
Hanger includes：Insulating bar, located at the L-shaped folded plate in the top of insulating bar and longitudinal cross-section, folded plate includes the riser of genesis analysis
With the transverse slat of cross direction profiles；Riser is provided with the first hole of a rectangle, and the insulating bar upper end is laterally fixed with an eccentric wheel,
The transverse slat of the folded plate is flexibly connected with insulating bar, and insulating bar can rotate relative to central shaft of the folded plate around insulating bar, and is made
The edge of above-mentioned eccentric wheel passes in and out first hole；A pair of banking pins, the peace are provided with the outside of the both ends of the riser of the folded plate
Shelve including：The u-shaped substrate of section, substrate are convex for being slidably matched respectively with the pair of banking pin provided with a pair
Font hole；Spacing hole is provided with the substrate between the pair of convex shape hole, when the eccentric wheel rotates with insulating bar,
Suitable for also cross the first hole and the second hole；In use, the pair of banking pin is matched with the pair of convex shape hole, and
Rotating insulated rod makes eccentric wheel also cross first, second hole, so that the first or second slave is connected with folded plate, is then lifted out absolutely
Edge rod turns round insulating bar, eccentric wheel is departed from first, second hole simultaneously so that the first or second slave is erected on corresponding circuit
Insulating bar is moved down, the pair of banking pin is departed from convex shape hole, then withdraws insulating bar, completes first or second
Slave is hung, and it is easy, safe and reliable that this hangs process steps, and ensure that the safe distance of measurement, while saves a large amount of
Manpower and material resources.
The side of the substrate is in concave shape, and the shell is located at the recess of the substrate, and the U-shaped portion of the substrate is suitable to make
Substrate is set on cable；The banking pin includes the head of a nail, and the middle and lower part width in the convex shape hole is more than the head of a nail of banking pin
Diameter, the width of middle and upper part is less than the diameter of the banking pin head of a nail.
The invention has the advantages that the high voltage phasing tester on-line monitoring system and detection method of the present invention pass through channel radio
News module realizes that slave interconnects with main frame, gathers the voltage induced signal of former circuit, test line respectively by corresponding slave, keeps away
Having exempted from traditional phasing tester needs staff to climb electric pole, ensure that personal security；And the present invention can also be examined accurately
Measure the voltage phase difference of former circuit and test line, it may be necessary to use 3 groups of 6 slaves, disposable test A, B, C three-phase
The tested cable of former cable and corresponding matched-phase；The present invention significantly reduces the intensity of work, and reduce error can
Energy property, the stable operation that ensures safety of maximum possible.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the theory diagram of the high voltage phasing tester on-line monitoring system of the present invention；
The voltage phase difference calculating that Fig. 2 is the present invention is related to square wave schematic diagram；
Fig. 3 is the high voltage phasing tester on-line monitoring method flow chart of the present invention；
Fig. 4 is the structural representation of the online nuclear phase instrument hanger of high-tension line；
Fig. 5 is Fig. 4 right view；
Fig. 6 is the outline structural diagram of first, second slave；
Fig. 7 is Fig. 6 left view；
Fig. 8 is the structural representation that first, second slave is hung on folded plate.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
Embodiment 1
As shown in figure 1, a kind of high voltage phasing tester on-line monitoring system of the present invention, including：Positioned at former circuit（Former cable）
The first slave, positioned at test line（Tested cable）The second slave；First, second slave is suitable to respectively by former line
Voltage induced signal on road, test line is sent to main frame；The main frame is suitable to obtain original by relevant voltage induced signal
The voltage phase difference and/or Amplitude Ration of circuit and test line.
The main frame includes primary processor, and be connected with the primary processor display screen, RS485 serial ports, bluetooth module,
Ethernet module, gsm module etc..And can be by core by the RS485 serial ports, bluetooth module, ethernet module, gsm module
Phase data is sent to background server.
First slave is identical with the second slave structure, and including：Non-contact voltage transducer, with contactless electricity
The connected signal acquisition process module of pressure sensor, and be connected with the signal acquisition process module from processing module, it is described
It is suitable to the voltage induced signal on former circuit or test line being converted to square wave from processing module, and passes through wireless communication module
Two square waves are sent to main frame simultaneously；The main frame is suitable to calculate former circuit by two square waves, voltage-phase on test line
Difference and/or Amplitude Ration.
Wherein, wireless communication module is such as, but not limited to WiFi module, 3G/4G modules.First slave and second from
Machine exports square wave A and square wave B to main frame respectively.
As shown in Fig. 2 the main frame is suitable to calculate former circuit by two square waves, voltage phase difference on test line, i.e.,
Primary processor in the main frame is suitable to setting time origin, and compares square wave A and square wave B phase according to the timeorigin
Difference；Since timeorigin, in square wave A, for a positive half cycle, occur leading edge position first and be labeled as a points, and should
It is c points that trailing edge position mark, which occurs, in square wave A；And in square wave B, for a negative half period, occurs trailing edge position first
D points are labeled as labeled as b points, and by square wave B leading edge position；The trigger interval time is determined by above-mentioned a points and b points
T1, b point determine that trigger interval time T2, c point and d points determine trigger interval time T3 with c points；And during by above-mentioned trigger interval
Between determine square wave A and square wave B phase differenceφ, i.e.,
。
The primary processor is further adapted for calculating each phase difference of square wave A and square wave B in follow-up each square-wave cycleφ, and
The voltage phase difference is used as by repeatedly calculating the average phase-difference averaged to obtain square wave A and square wave B.
The main frame is suitable to calculate former circuit, the voltage magnitude ratio on test line, i.e., described main frame by two square waves
In primary processor be suitable to by square wave A compared with square wave B amplitude, to obtain the voltage magnitude ratio；And by repeatedly counting
Calculate try to achieve the voltage magnitude than average value.
Further, the input of real time signal aquisition and primary processor high sampling rate signal itself and the meter of Microsecond grade are passed through
Number device timing, can obtain the good supply frequency of precision, phase and phase data.
Then in the display screen of main frame（Display screen is connected with primary processor）Upper display waveform directly perceived and the data of test.Must
The tested circuit of 3 groups of 6 slaves, disposable test A, B, C three-phase original circuit and corresponding matched-phase can be used when wanting.
The intensity of work is significantly reduced, reduces the possibility of error, the stable operation that ensures safety of maximum possible.
Master and slave processor is such as, but not limited to using single-chip microcomputer, embeded processor.
Specifically, in actual mechanical process, slave quantity can be six, connect three-phase circuit in former circuit respectively,
And the three-phase circuit in test line.
The present embodiment is by taking the first slave and the second slave as an example.
First, after main frame start, main frame sends the status command of inquiry slave, is sent to first by wireless signal, the
Two slaves, first, second slave give itself battery level information and work state information by wireless signal feedback
Main frame, confirm that slave is ready, main frame sends the order of collection signal while reaches first, second slave, otherwise switchs to different
Often processing.
Then, first, second slave be suitable to respectively by the voltage induced signal on former circuit, test line send to
Main frame；The main frame is suitable to the voltage phase difference and/or width that former circuit and test line are obtained by relevant voltage induced signal
Value ratio；And the phase difference is used for phase bit check and phase sequence checking, Amplitude Ration is used for the judgement for being tested voltage magnitude.
Optionally, slave is installed in the outside of high-tension cable, is not contacted directly with core, you can obtains required letter
Number, ensure that the insulating properties of cable in itself is constant.Main frame is handheld device, and corresponding electricity is obtained by the wireless communication module of each slave
The electric signal of cable, slave can be arranged on cable for a long time, therefore, during test, it is not necessary to which staff climbs electric pole.
Usually the battery of slave is only to wireless communication module and from processing module（Using single-chip microcomputer）Power supply, from processing module
Only managed again after the instruction that operating personnel send is received and the collection of control voltage induced signal, processing.Under this pattern from
Manage module usually the most of the time in a dormant state, only again to signal acquisition process after the instruction that operating personnel send is received
Module for power supply, signal acquisition process module work to obtain high pressure phase signal immediately, and the real-time of measurement is not affected
Influence, while battery power consumption is extremely slow, and the loss of the most of component and wireless transmitter module in slave also very little,
Therefore, the life-span of whole slave can greatly prolong.
And the slave on 6 tunnels or more is also sent into signal and carries out digital coding, disengages it from original 2 groups of data one by one
The category of corresponding test, using waking up gathered data technology respectively and combining the transmission technology of multi-channel data, by the appearance of data
Amount is extended to 6 groups from 2 groups（Later stage can be more）, to reduce the interference of mutual signal simultaneously, increase serious forgiveness.
Main frame is suitable to send sampling pulse signal, and first, second slave receives order simultaneously, on synchronous acquisition two lines road
Voltage signal, by time reference of the sampling pulse signal that main frame provides as the collection signal of first, second slave, ensure two
Individual slave measurement data while property, test result are accurate.
Test signal collection finishes, and main frame sends calibration data order to each slave respectively, and by each slave, basis connects respectively
Receive instruction to be corrected the phase error and amplitude error of measurement, main frame is according to collecting the first slave and the second slave
Voltage signal, main processor modules calculate phase difference and Amplitude Ration, and phase difference is used for phase bit check and phase sequence checking；Amplitude
Than judging for voltage magnitude.Within a period of time（A few minutes）, all phases of 2 groups of three phase mains and phase difference are all calculated
On the premise of out, it can directly settle accounts and draw the corresponding relation of every group of three phase mains from each other, enormously simplify whole core
The workflow of phase, old manual operation pattern is instead of, improving the correctness of whole system reduces because personnel neglect
The accident potential Deng caused by.
Embodiment 2
As shown in Figure 1 to Figure 3, on the basis of embodiment 1, the work side of high voltage phasing tester on-line monitoring system of the invention
Method, including high voltage phasing tester on-line monitoring method, comprise the following steps：
Step S1, gather former circuit, the voltage induced signal on test line；
Step S2, the voltage phase difference and/or amplitude of former circuit and test line are obtained by the voltage induced signal
Than.
In the step S2 by the voltage induced signal obtain former circuit and test line voltage phase difference and/or
The method of Amplitude Ration includes：Voltage induced signal on former circuit, test line is converted into square wave, and calculated by two square waves
Go out former circuit, voltage phase difference and/or Amplitude Ration on test line.
By the way that two square waves calculate former circuit, the method for voltage phase difference includes on test line：
Setting time origin, and compare according to the timeorigin square wave A and square wave B phase difference；
Since timeorigin, in square wave A, for a positive half cycle, occur leading edge position first and be labeled as a points,
And it is c points that square wave A into trailing edge position mark occurs；And in square wave B, for a negative half period, decline first
It is b points along position mark, and square wave B leading edge position is labeled as d points；Trigger interval is determined by above-mentioned a points and b points
Time T1, b points determine that trigger interval time T2, c point and d points determine trigger interval time T3 with c points；
And square wave A and square wave B phase difference are determined by the above-mentioned trigger interval timeφ, i.e.,
。
By the way that two square waves calculate former circuit, the method for voltage phase difference also includes on test line：Calculate square wave A and
Each phase differences of the square wave B in follow-up each square-wave cycleφ, and averaged by repeatedly calculating to obtain square wave A and square wave B
Average phase-difference as the voltage phase difference.
By two square waves calculate former circuit, the voltage magnitude on test line than method include：By square wave A and square wave
B amplitude is compared, to obtain the voltage magnitude ratio；And by repeatedly calculate try to achieve the voltage magnitude than average value.
Embodiment 3
On the basis of above-described embodiment, Fig. 4-8 are seen, first, second slave 3 includes being used to accommodate circuit board and electricity
The shell 9 in pond, the mounting bracket being connected with the shell 9；The method of work of described high voltage phasing tester on-line monitoring system also includes
First, second slave is suspended to, on test line by the former circuit using hanger respectively.
The hanger includes：Insulating bar 1, located at the L-shaped folded plate 2 in the top of insulating bar 1 and longitudinal cross-section, folded plate 2 wraps
Include the riser of genesis analysis and the transverse slat of cross direction profiles；Riser is provided with the first hole 7 of a rectangle, and the upper end of insulating bar 1 is horizontal
To an eccentric wheel 4 is fixed with, the transverse slat of the folded plate 2 is flexibly connected with insulating bar 1, and insulating bar 1 can relative to folded plate 2 around
The central shaft rotation of insulating bar 1, and the edge of above-mentioned eccentric wheel 4 is passed in and out first hole 7；The two of the riser of the folded plate 2
End outside is provided with a pair of banking pins 5, and the mounting bracket includes：The u-shaped substrate 23 of section, substrate 23 are used for provided with a pair
The convex shape hole 6 being slidably matched respectively with the pair of banking pin 5；On the substrate 23 between the pair of convex shape hole 6
Provided with spacing hole 8, when the eccentric wheel 4 rotates with insulating bar 1, suitable for also cross the first hole 7 and the second hole 8.
The side of the substrate 23 is in concave shape, and the shell 9 is located at the recess of the substrate 23, the U-shaped of the substrate 23
Portion is suitable to make substrate 23 be set on cable 11；The banking pin 5 includes head of a nail 5-1, the middle and lower part width in the convex shape hole 6
More than the head of a nail 5-1 of banking pin 5 diameter, the width of middle and upper part is less than the head of a nail 5-1 of banking pin 5 diameter.
The insulating bar 1 is extension type insulating bar, in order to carry and be applied to and various height.
In use, the pair of banking pin 5 is matched with the pair of convex shape hole 6, and rotating insulated rod makes bias
Wheel is also cross first, second hole so that the first or second slave 3 is connected with folded plate, be then lifted out insulating bar 1 with by first or
Second slave 3 is erected on corresponding circuit, turn round insulating bar, make eccentric wheel depart from first, second hole and by insulating bar down
It is mobile, the pair of banking pin is departed from convex shape hole 6, then withdraw insulating bar, complete the extension of the first or second slave 3
If it is easy, safe and reliable that this hangs process steps, and ensure that the safe distance of measurement, at the same save substantial amounts of manpower and
Material resources.
It is complete by above-mentioned description, relevant staff using the above-mentioned desirable embodiment according to the present invention as enlightenment
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.
Claims (1)
- A kind of 1. method of work of high voltage phasing tester on-line monitoring system, it is characterised in that high voltage phasing tester on-line monitoring system System includes：The first slave positioned at former circuit, the second slave positioned at test line；First, second slave is suitable to respectively send the voltage induced signal on former circuit, test line to main frame；The main frame is suitable to the voltage phase difference and/or amplitude that former circuit and test line are obtained by relevant voltage induced signal Than；Described method of work, including：Step S1, gather former circuit, the voltage induced signal on test line；Step S2, the voltage phase difference and/or Amplitude Ration of former circuit and test line are obtained by the voltage induced signal；The voltage phase difference and/or amplitude of former circuit and test line are obtained in the step S2 by the voltage induced signal The method of ratio includes：Voltage induced signal on former circuit, test line is converted into square wave, and calculates former circuit by two square waves, be tested Voltage phase difference and/or Amplitude Ration on circuit；By the way that two square waves calculate former circuit, the method for voltage phase difference includes on test line：Setting time origin, and compare according to the timeorigin square wave A and square wave B phase difference；Since timeorigin, in square wave A, for a positive half cycle, occur leading edge position first and be labeled as a points, and will It is c points that trailing edge position mark, which occurs, in square wave A；AndIn square wave B, for a negative half period, it is b points to occur trailing edge position mark first, and by square wave B rising edge Position mark is d points；Determine that trigger interval time T1, b point determines that trigger interval time T2, c point and d points are true with c points by above-mentioned a points and b points Determine trigger interval time T3；And square wave A and square wave B phase difference are determined by the above-mentioned trigger interval timeφ, i.e.,5DQ3$A)_[OB(FS38MIVMQUH；It is described by the way that two square waves calculate former circuit, the method for voltage phase difference also includes on test line：Calculate each phase difference of square wave A and square wave B in follow-up each square-wave cycleφ, and by repeatedly calculate average with Square wave A and square wave B average phase-difference is obtained as the voltage phase difference；First, second slave（3）Including the shell for accommodating circuit board and battery（9）And the shell（9）Connected peace Shelve；Described method of work also includes first, second slave is suspended into the former circuit, test line respectively using hanger On；The hanger includes：Insulating bar（1）, located at insulating bar（1）The L-shaped folded plate in top and longitudinal cross-section（2）, folded plate （2）The transverse slat of riser and cross direction profiles including genesis analysis；Riser is provided with the first hole of a rectangle（7）, the insulating bar （1）Upper end is laterally fixed with an eccentric wheel（4）, the folded plate（2）Transverse slat and insulating bar（1）It is flexibly connected, and insulating bar （1）Can be relative to folded plate（2）Around insulating bar（1）Central shaft rotation, and make above-mentioned eccentric wheel（4）Edge disengaging described first Hole（7）；The folded plate（2）Riser both ends on the outside of be provided with a pair of banking pins（5）, the mounting bracket includes：Section is u-shaped Substrate（23）, substrate（23）Be provided with a pair be used for respectively with the pair of banking pin（5）The convex shape hole being slidably matched（6）；The substrate（23）Upper and the pair of convex shape hole（6）Between be provided with spacing hole（8）, the eccentric wheel（4）With insulation Rod（1）During rotation, suitable for also cross the first hole（7）With the second hole（8）；In use, by the pair of banking pin（5）It is matched with the pair of convex shape hole（6）It is interior, and rotating insulated rod makes bias Wheel is also cross first, second hole, so that the first or second slave（3）It is connected with folded plate, is then lifted out insulating bar（1）With by One or second slave（3）It is erected on corresponding circuit, turns round insulating bar, eccentric wheel is departed from first, second hole and will insulate Rod moves down, and makes the pair of banking pin and convex shape hole（6）Depart from, then withdraw insulating bar, complete first or second from Machine（3）Hang.
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| CN106124874A (en) * | 2016-06-15 | 2016-11-16 | 国网山东省电力公司寿光市供电公司 | Remote control nuclear phase indicator |
| CN108535554A (en) * | 2018-03-26 | 2018-09-14 | 福州大学 | Novel non-contact nuclear phase detection method |
| CN110927365A (en) * | 2019-11-19 | 2020-03-27 | 广州圣安环保科技有限公司 | Humidity sensing system for building and control method thereof |
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