CN106353610A - Phase check meter with base station service function and phase check method - Google Patents

Phase check meter with base station service function and phase check method Download PDF

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Publication number
CN106353610A
CN106353610A CN201610661883.XA CN201610661883A CN106353610A CN 106353610 A CN106353610 A CN 106353610A CN 201610661883 A CN201610661883 A CN 201610661883A CN 106353610 A CN106353610 A CN 106353610A
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CN
China
Prior art keywords
phase
unit
data
gprs
nuclear phase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610661883.XA
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Chinese (zh)
Inventor
苏有功
刘富强
蒋井阳
刘志柏
姚金卓
张建良
欧干新
徐璐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Tianjin Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201610661883.XA priority Critical patent/CN106353610A/en
Publication of CN106353610A publication Critical patent/CN106353610A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/18Indicating phase sequence; Indicating synchronism
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R25/00Arrangements for measuring phase angle between a voltage and a current or between voltages or currents

Abstract

The invention relates to a phase check meter with a base station service function and a phase check method. The phase check meter comprises a sending device and a receiving device, wherein each of the sending device and the receiving device is connected with an insulating rod, the sending device is mounted on a known phase-A line, the receiving device is mounted at optional one of remote to-be-checked phases, and the sending device and the receiving device are communicated through short messaging service. The phase check meter registers a good operational performance during trial operation. A great number of trial operation data indicate that the phase check meter with the base station service function developed therein is used for high-voltage phase check through the short messaging service and is high in phase check accuracy and practicality and capable of enhancing operational safety greatly.

Description

There is nuclear phase instrument and the nuclear-phase method of base station service function
Technical field
The invention belongs to distribution runs field, it is related to nuclear phase instrument, especially a kind of nuclear phase instrument with base station service function And nuclear-phase method.
Background technology
In power system, can whether phase sequence be consistent, be directly connected to and be incorporated into the power networks, positive and negative, the impact electricity again of phase sequence The rotation direction of motivation.Measurement high-pressure system at present, typically adopts voltage measuring transformer, very inconvenient using process.In city In city's planning construction, urban distribution network complex circuit, the house that some early stages build, cell layout of roads be not very perfect, reconstructed In journey, drawing is not congruent, brings many impacts to urban planning and construction, so measuring phase sequence, to make current line situation in order be very Important.
Phase place is one of big key element of cycle (paracycle) signal three, and the measurement of phase place and phase contrast is electronic surveying and signal The important content processing.The detection of high and low pressure circuit often line phase to be entered and phase contrast, for example, measurement three-phase circuit is uneven Weighing apparatus degree will measure the phase contrast of three-phase line voltage, and the detection of arrester resistance current needs to measure voltage and total current phase place Difference, before new electric station is grid-connected, new transformer station goes into operation, project of transmitting and converting electricity enlarging, after transformation or main equipment overhaul, scene of putting into operation of being completed Often to do nuclear phase test, that is, so-called determine phase, include Check Phase Sequence and check phase place, need to measure two grid-connected electrical networks correspondences The phase contrast of phase.
At present, domestic high-voltage electric power circuit nuclear phase, all using wired mode, needs 4 people to carry out, 1 people serves as finger during nuclear phase Wave, 2 people wear insulating boot, wear insulating glove and serve as nuclear phase person, 1 people's instrument record, nuclear phase work is entered according to the order of commanding OK, high-voltage connection is fixed on insulating bar operation with high pressure person, and length is suitable, draws high pressure linear contact lay high voltage power supply point with insulating bar When, coordination, two people coordinate with each other, in order to avoid going wrong, cause danger.
This method there is problems that for high-tension line, when especially to the phase-detection of high-tension overhead line, Ask two devices simultaneously with two conductive contact, using wired mode dragging line very long using very inconvenient, there is certain danger Property, nuclear phase result is checked also cumbersome.
Content of the invention
It is an object of the invention in place of overcoming the deficiencies in the prior art, providing the tool of a kind of safe and convenient, reliable operation There are nuclear phase instrument and the nuclear-phase method of base station service function.
The present invention solves technical problem and be the technical scheme is that
A kind of nuclear phase instrument with base station service function, including dispensing device and reception device, dispensing device and reception fill Put and connect an insulating bar respectively, wherein dispensing device is installed on known three-phase separate a phase line, reception device is installed in the distance In separate any one phase to be measured, the two is communicated by short message mode, and described dispensing device and reception device structure are identical, All include power induction module, waveform acquisition unit, cpu processing unit, gps module, gprs unit.Power induction module is respectively Output connects waveform acquisition unit, cpu processing unit, gps module, gprs unit.Waveform acquisition unit and gps module are defeated respectively Go out to connect cpu processing unit, cpu processing unit is connected with gprs unit input/output, and gprs unit includes SMS transmission module And sim card, power induction module induction line voltage nearby, and by big resistive impedance coupling and voltage stabilizing measure, supply electricity to each Individual unit module, the voltage signal sensing in power induction module is amplified and Filtering Processing by waveform acquisition unit, obtains Take the real time voltage waveforms of separate circuit to be measured, then, processed by Schmidt trigger, continuous voltage waveform is converted into Measurable digital signal, and this digital signal is sent to cpu processing unit is processed, the second that gps is received by gps module Pulse signal is sent to cpu processing unit and carries out data processing, cpu processing unit receiving voltage Wave data, receives gps and sends Pps pulse per second signal data, receive gprs unit send nuclear phase instruction, processing data, to gprs unit send nuclear phase number of results According to the gprs unit of reception device sends nuclear phase instruction note, the gprs unit of dispensing device to the gprs unit of dispensing device Nuclear phase result data, the gprs unit of reception device and user mobile phone terminal to phase known to the gprs unit transmission of reception device Communication, receive user nuclear phase instructs, and is sent to user's nuclear phase result.
A kind of nuclear-phase method of the nuclear phase instrument with base station service function, step is as follows:
(1) user sends nuclear phase by SMS and instructs to reception device gprs unit cell-phone number;
(2) after reception device receives nuclear phase instruction, dispensing device gprs unit is issued in nuclear phase instruction;
(3) nuclear phase instruction is sent to the cpu processing unit of dispensing device by dispensing device gprs unit;
(4) the cpu processing unit of dispensing device starts to detect the pulse per second (PPS) that gps sends, and starts to count after receiving pulse per second (PPS) When, to the voltage detecting after ad conversion, timing is stopped by high level to low level, calculate time difference △ t, pulse per second (PPS) time Signal and time difference are designated as one group of data, and seven groups of data of continuous seven seconds records, after data record finishes, by the nuclear phase of known phase Data is activation is to gprs unit, and orders gprs unit to pass through the gprs unit to reception device for the short message sending;
(5), after the gprs unit of reception device receives the nuclear phase instruction of dispensing device gprs unit transmission, nuclear phase is instructed It is sent to the cpu processing unit of reception device, cpu processing unit starts to detect the pulse per second (PPS) that gps sends, after receiving pulse per second (PPS) Start timing, to the voltage detecting after ad conversion, timing is stopped by high level to low level, calculate time difference △ t, second arteries and veins Rush time signal and time difference is designated as one group of data, seven groups of data of continuous seven seconds records, data record simultaneously, judges to send dress Put the nuclear phase data of the known phase of gprs unit transmission, by the nuclear phase data of known phase and phase nuclear phase Data Comparison to be measured, sentence Disconnected nuclear phase result, sends result to gprs unit, and orders gprs unit, by note, this result is sent to user mobile phone;
(6) after user mobile phone receives note, may know that phase phase place to be measured.
Advantages of the present invention and good effect are:
1st, this nuclear phase instrument carries out nuclear phase using radio principle, and nuclear phase result is passed through short message sending, not only simplify Operating process, saves people power, more improves the safety of nuclear phase operation.
2nd, this nuclear phase instrument high voltage induction, without external power source, reliable operation.
3rd, this nuclear phase instrument carries out nuclear phase work using wireless mode, simplifies nuclear phase flow process.
4th, this nuclear phase instrument, in trial operation, shows good operational effect, and substantial amounts of test run data shows, this Mesh research and development there is base station server function nuclear phase instrument, high-voltage nuclear phase is carried out by short message mode, phase place appraise and decide accuracy and Good performance is shown on practicality, and drastically increases processing safety.
Brief description
Fig. 1 is nuclear phase instrument schematic view of the mounting position;
Fig. 2 is the circuit block diagram of this nuclear phase instrument.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings and by specific embodiment, and following examples are descriptive , it is not determinate it is impossible to protection scope of the present invention is limited with this.
A kind of nuclear phase instrument with base station service function, including dispensing device and reception device, dispensing device and reception fill Put and connect an insulating bar respectively.Installation site as shown in figure 1, wherein dispensing device is installed on known three-phase separate a phase line, In the distance in any one phase to be measured to separate (a, b, c), the two is communicated by short message mode for reception device installation.
The idiographic flow of short message communication is: user sends nuclear phase by SMS and instructs to reception device cell-phone number, connects Nuclear phase instruction is issued dispensing device after receiving nuclear phase instruction by receiving apparatus, the nuclear phase data of known phase to be received such as simultaneously.Receive After device receives the nuclear phase data of known phase, after cpu nuclear phase data processing, send result to user mobile phone, user mobile phone Phase phase place to be measured is may know that after receiving note.
Described dispensing device includes power induction module, waveform acquisition unit, cpu processing unit, gps module, gprs Unit.Power induction module exports connection waveform acquisition unit, cpu processing unit, gps module, gprs unit respectively.Waveform is adopted Collection unit and gps module export connection cpu processing unit respectively, and cpu processing unit is connected with gprs unit input/output, Gprs unit includes SMS transmission module and sim card.
Power induction module utilizes 10kv line-to-ground to produce the characteristic of bulky capacitor, designs sensor circuit, and induction line is attached Nearly voltage, and to mating by big resistive impedance and voltage stabilizing measure, supply electricity to other unit modules so as to work can be obtained Make power supply.
The voltage signal sensing in power induction module is amplified and Filtering Processing by waveform acquisition unit, and acquisition is treated Survey the real time voltage waveforms of separate circuit.Then, processed by Schmidt trigger, continuous voltage waveform is analogue signal It is converted into measurable digital signal, that is, ad changes and this digital signal is sent to cpu process.Ad transfer principle is: mould Intend signal (sine wave) input schmitt trigger inverter, when magnitude of voltage is higher than positive input threshold voltage, output signal For high level, when magnitude of voltage is less than negative sense input threshold voltage, output signal is low level.
The pps pulse per second signal that gps module is used for receiving gps is sent to cpu and carries out data processing.Pps pulse per second signal is The critical data of cpu process signal, help by time synchronizing relation to find biphase waveshape signal same position (amplitude, Phase angle all same).
Gprs unit (containing SMS transmission module) carries out communicating wireless signals using gprs, comprises short message sending and receives mould Block, is instructed by and controls short message receiving-transmitting.Gprs unit in dispensing device is responsible for the gprs unit communications with reception device, bag Include reception nuclear phase instruction note, the nuclear phase data of phase voltage known to transmission.Gprs unit in dispensing device is responsible for exchanging with cpu Data, sends nuclear phase instruction including to cpu, receives the nuclear phase data that cpu sends.
Cpu processing unit processes mechanism: cpu processing unit is responsible for nuclear phase data and the process of decision logic, and by with Data interaction is realized in the communication of other modules, logical order is assigned.
Concrete function: phase voltage waveform known to reception, receive the pps pulse per second signal of gps transmission and preserve, receive gprs mono- The nuclear phase instruction that unit sends, processing data, to the nuclear phase data mutually held known to the transmission of gprs unit.
Workflow: after receiving the nuclear phase instruction of gprs unit transmission, start to detect the pulse per second (PPS) that gps sends, connect Start timing after receiving pulse per second (PPS), stop timing, meter to voltage displacement (by high level to low level) detecting after ad conversion Evaluation time difference △ t, pulse per second (PPS) time signal and time difference are designated as one group of data, seven groups of data of continuous seven seconds records.Data After record finishes, it is sent to gprs unit, and order gprs unit to pass through the gprs unit to receiving terminal for the short message sending.
Described reception device is essentially identical with the structure of dispensing device, and operation principle and flow process have difference, and its difference exists In:
1st, the gprs unit in reception device is responsible for and user mobile phone communication, and including receiving separate decision instruction, identification is used Family phone number information, sends finally separate differentiation result to user.The gprs unit of reception device is responsible for and dispensing device Gprs unit communications, send nuclear phase instruction including to the gprs unit of dispensing device, connect the nuclear phase of the gprs unit of transceiver Data SMS.The gprs unit of reception device is responsible for and cpu exchange data, sends nuclear phase data including to cpu, receives cpu and sends out The nuclear phase data processed result sent.
2nd, the workflow of reception device is: after receiving the nuclear phase instruction of dispensing device gprs unit transmission, starts The pulse per second (PPS) that detection gps sends, starts timing after receiving pulse per second (PPS), conjugates (by high electricity to the voltage detecting after ad conversion Equal low level) stop timing, calculate time difference △ t, pulse per second (PPS) time signal and time difference are designated as one group of data, continuously Seven groups of data of seven seconds records.Data record simultaneously, judges and receives the nuclear phase data of the known phase of gprs unit transmission, by Know that the nuclear phase data of phase and phase nuclear phase Data Comparison (size of the time difference of same second and difference are contrasted) to be measured judge (basis for estimation illustrates referring to nuclear phase principle), judges nuclear phase result, sends result to gprs unit, and orders gprs unit to lead to Cross note and this result is sent to user mobile phone.
The nuclear phase principle of this nuclear phase instrument:
The amplitude of three-phase voltage, frequency are identicals, and waveform (ideally) is just the same, and the cycle is 20ms.Three In phase voltage, biphase phase angle is 120 °, then the same position (amplitude, phase angle all same) of known phase and phase waveform to be measured Difference n, n+1/3 or n+2/3 cycle.For example, we start timing, if 1/3 week when recording known a phase peak value maximum After phase, phase to be measured just reaches crest voltage, then to be measured is mutually b phase;If after 2/3 cycle, phase to be measured just reaches peak value Voltage, then to be measured is mutually c phase;If after 1 cycle, phase to be measured just reaches crest voltage, then to be measured is mutually a phase.
We are acquired to the real-time voltage signal of circuit, and pass through signal processing, find out known phase and phase line to be measured The same position of road voltage waveform, and calculate time difference, can determine that phase to be measured and the phase place of known phase by judging time difference Relation, so that it is determined that circuit to be measured is separate.
Above-described is only the preferred embodiment of the present invention it is noted that for those of ordinary skill in the art For, on the premise of without departing from inventive concept, some deformation can also be made and improve, these broadly fall into the protection of the present invention Scope.

Claims (2)

1. a kind of nuclear phase instrument with base station service function, including dispensing device and reception device, dispensing device and reception device Connect an insulating bar respectively it is characterised in that: wherein dispensing device is installed on known three-phase separate a phase line, reception device In the distance in separate any one phase to be measured, the two is communicated by short message mode for installation, and described dispensing device and reception fill Put structure identical, all include power induction module, waveform acquisition unit, cpu processing unit, gps module, gprs unit.Power supply Induction module exports connection waveform acquisition unit, cpu processing unit, gps module, gprs unit respectively.Waveform acquisition unit and Gps module exports connection cpu processing unit respectively, and cpu processing unit is connected with gprs unit input/output, gprs unit bag Include SMS transmission module and sim card, power induction module induction line voltage nearby, and mated and voltage stabilizing by big resistive impedance Measure, supplies electricity to unit module, and the voltage signal sensing in power induction module is amplified by waveform acquisition unit And Filtering Processing, obtain the real time voltage waveforms of separate circuit to be measured, then, processed by Schmidt trigger, will be continuous Voltage waveform is converted into measurable digital signal, and this digital signal is sent to cpu processing unit is processed, gps module The pps pulse per second signal that gps is received is sent to cpu processing unit and carries out data processing, cpu processing unit receiving voltage waveform Data, receives the pps pulse per second signal data that gps sends, and the nuclear phase receiving the transmission of gprs unit instructs, and processing data is mono- to gprs Unit sends nuclear phase result data, and the gprs unit of reception device sends nuclear phase instruction note to the gprs unit of dispensing device, sends out Send the nuclear phase result data of the gprs unit of device to phase known to the gprs unit transmission of reception device, the gprs of reception device is mono- Unit is communicated with user mobile phone terminal, and receive user nuclear phase instructs, and is sent to user's nuclear phase result.
2. a kind of nuclear-phase method of nuclear phase instrument according to claim 1 it is characterised in that: step is as follows:
(1) user sends nuclear phase by SMS and instructs to reception device gprs unit cell-phone number;
(2) after reception device receives nuclear phase instruction, dispensing device gprs unit is issued in nuclear phase instruction;
(3) nuclear phase instruction is sent to the cpu processing unit of dispensing device by dispensing device gprs unit;
(4) the cpu processing unit of dispensing device starts to detect the pulse per second (PPS) that gps sends, and starts timing, arrive after receiving pulse per second (PPS) Detect ad conversion after voltage by high level arrive low level stop timing, calculate time difference △ t, pulse per second (PPS) time signal with Time difference is designated as one group of data, seven groups of data of continuous seven seconds records, after data record finishes, the nuclear phase data of known phase is sent out Give gprs unit, and order gprs unit to pass through the gprs unit to reception device for the short message sending;
(5), after the gprs unit of reception device receives the nuclear phase instruction of dispensing device gprs unit transmission, nuclear phase is instructed and sends To the cpu processing unit of reception device, cpu processing unit starts to detect the pulse per second (PPS) that gps sends, and starts after receiving pulse per second (PPS) Timing, stops timing to the voltage detecting after ad conversion by high level to low level, calculates time difference △ t, during pulse per second (PPS) Between signal and time difference be designated as one group of data, seven groups of data of continuous seven seconds records, data record simultaneously, judges dispensing device The nuclear phase data of the known phase that gprs unit sends, by the nuclear phase data of known phase and phase nuclear phase Data Comparison to be measured, judges Nuclear phase result, sends result to gprs unit, and orders gprs unit, by note, this result is sent to user mobile phone;
(6) after user mobile phone receives note, may know that phase phase place to be measured.
CN201610661883.XA 2016-08-10 2016-08-10 Phase check meter with base station service function and phase check method Pending CN106353610A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109142977A (en) * 2018-09-13 2019-01-04 无锡圣普电力科技有限公司 The phase automatic testing method of transient state recording type fault detector
CN109283402A (en) * 2018-10-11 2019-01-29 国网山东省电力公司日照供电公司 The remote nuclear phase instrument of cable and its application method
CN109738714A (en) * 2019-03-20 2019-05-10 国家电网有限公司 The method and device of secondary nuclear phase
CN112345837A (en) * 2020-09-22 2021-02-09 国家电网有限公司 Electronic phase indicating device and application method thereof

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CN204086410U (en) * 2014-09-11 2015-01-07 国家电网公司 Intelligent nuclear phase meter
CN104597332A (en) * 2015-01-08 2015-05-06 北华大学 Networked three-phase circuit phase sequence detection device and detection method thereof
CN105021891A (en) * 2015-08-03 2015-11-04 国家电网公司 Power distribution network base station type nuclear phase apparatus
CN204789777U (en) * 2015-05-04 2015-11-18 山东达顺电子科技有限公司 Wireless high -pressure nuclear phase ware

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JPH0458162A (en) * 1990-06-27 1992-02-25 Hitachi Cable Ltd High-voltage measuring instrument and high-voltage phase difference measuring instrument
CN102323492A (en) * 2011-08-06 2012-01-18 安徽省电力公司芜湖供电公司 Remote phasing device for cable lines and phasing method thereof
CN202735415U (en) * 2012-02-20 2013-02-13 兴义供电局 Contactless high-voltage wireless phase detector
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Publication number Priority date Publication date Assignee Title
CN109142977A (en) * 2018-09-13 2019-01-04 无锡圣普电力科技有限公司 The phase automatic testing method of transient state recording type fault detector
CN109142977B (en) * 2018-09-13 2021-02-02 无锡圣普电力科技有限公司 Phase automatic detection method of transient recording type fault indicator
CN109283402A (en) * 2018-10-11 2019-01-29 国网山东省电力公司日照供电公司 The remote nuclear phase instrument of cable and its application method
CN109738714A (en) * 2019-03-20 2019-05-10 国家电网有限公司 The method and device of secondary nuclear phase
CN112345837A (en) * 2020-09-22 2021-02-09 国家电网有限公司 Electronic phase indicating device and application method thereof

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