CN104730340A - 10 kV ring main unit wireless phase checking instrument and test method - Google Patents
10 kV ring main unit wireless phase checking instrument and test method Download PDFInfo
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- CN104730340A CN104730340A CN201510137465.6A CN201510137465A CN104730340A CN 104730340 A CN104730340 A CN 104730340A CN 201510137465 A CN201510137465 A CN 201510137465A CN 104730340 A CN104730340 A CN 104730340A
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Abstract
The invention relates to a 10 kV ring main unit wireless phase checking instrument which comprises a collector and a receiving host. A high-voltage signal collection unit, a digital filtering unit and a wireless transmission unit in the collector are sequentially connected. The receiving host comprises a wireless receiving unit, an operational amplifier unit, a central processing unit, a screen display unit, a voice processing unit and a voice output unit. The wireless receiving unit is sequentially connected with the operational amplifier unit and the central processing unit. The central processing unit is connected with the screen display unit and the voice processing unit. The voice processing unit is connected with the voice output unit. The collector collects the system waveform of the corresponding phase, converts analog signals of the system waveform into digital signals, and sends the digital signals out through wireless communication. The receiving host converts the received digital signals into analog signals, compares the two paths of analog signals, and analyzes the phase relation between the two paths of analog signals, so that the 10 kV ring main unit phase and phase sequence checking purpose is achieved.
Description
Technical field
The present invention relates to a kind of electric system 10kV distribution line field adjustable, particularly relate to a kind of 10kV ring main unit wireless core phase instrument and method of testing, be mainly used in 10kV power transmission network ring main unit phase place and phase sequence check test, belong to electric power application.
Background technology
In recent years along with the develop rapidly of electric system, power supply enterprise is for ensureing power supply reliability, the Local Area Network that distribution cable circuit must be set up based on different substation connects, and between this cable line connect adopt be that distribution line ring main unit is implemented, this equipment with protection against electric shock latch performance, only after the grounding switch that closes, just can open ring main unit cabinet door.Without the nuclear phase instrument and equipment be suitable for when the nuclear phase operation of this type is carried out in current domestic existence, if nuclear phase operation in violation of rules and regulations, there is serious equipment failure and personal injury hidden danger.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art; provide a kind of 10kV ring main unit wireless core phase instrument; solve 10kV power transmission network ring main unit phase place and phase sequence check test problem, protection ensures power system security reliability service and thorough Elimination test personnel personal safety hidden danger.
Another object of the present invention is a kind of method providing brand-new wireless test phase place and phase sequence.
Technical scheme of the present invention is as follows:
Instrument comprises collector and Receiving Host, adopts wireless encoding and frequency division signal transmission between collector and Receiving Host; Described collector comprises high-voltage signal collecting unit, digital filtering unit and wireless transmitting unit, and high-voltage signal collecting unit, digital filtering unit are connected successively with wireless transmitting unit; Described Receiving Host comprises radio receiving unit, amplifier unit, central processing unit, screen display unit, Audio Processing Unit, voice-output unit, radio receiving unit is connected with amplifier unit, central processing unit successively, central processing unit is connected with screen display unit and Audio Processing Unit respectively, and Audio Processing Unit is connected with voice-output unit.
The simulating signal of system waveform is converted into digital signal by described high-voltage signal collecting unit, utilizes wireless telecommunications digital signal to be sent.
Described digital filtering unit adopts Interference Cancellation, high-speed frequency-hopping and time division multiple access (TDMA), prevents the strong electromagnetic in nuclear phase operation process and transmission.
The simulating signal of system waveform is converted into digital signal by described wireless transmitting unit, utilizes wireless telecommunications digital signal to be sent.
The digital signal received is converted into simulating signal by described radio receiving unit again.
Two-way simulating signal is compared process by described middle central processing unit, analyzes the phase relation of two paths of signals.
Method of testing of the present invention comprises the steps:
Collector is utilized to gather the system waveform of electric system corresponding phase, again the simulating signal of system waveform is converted into digital signal, wireless telecommunications are utilized digital signal to be sent, the digital signal received is converted into simulating signal by the radio receiving unit of Receiving Host and central processing unit again, two-way simulating signal to be compared process simultaneously, analyze the phase relation of two paths of signals; Completed display by screen display unit and Audio Processing Unit, voice-output unit, reported test result.
Advantageous effect of the present invention is as follows:
1, the nuclear phase work of 10kV ring main unit is adapted to.
2, adopt high voltage induction formula nuclear phase technology, the contact of isolated tester and high-tension apparatus, in nuclear phase process, has reliable high voltage electrical safe distance, guarantees personal safety and device security.
3, entirely intelligent, simple to operate, convenient, multiple functional.Low-power consumption, operation interface is directly perceived, Chinese character and digital double display.
4, directly phase angle is shown, quantified system analysis ruuning situation.
5, possess intelligent voice system, instruct nuclear phase overall process.
6, realize phase sequence to measure.
7, the wireless measurement of phase place and phase sequence between the parallel outlet of ring main unit is realized.
Accompanying drawing explanation
Fig. 1 is structural principle schematic block diagram of the present invention.
Fig. 2 is that 10kV ring main unit private radio nuclear phase instrument measures wiring schematic diagram.
Embodiment
Referring to accompanying drawing, in conjunction with specific embodiments, the present invention is described in detail
.
Embodiment
As shown in Figure 1, instrument comprises: collector and Receiving Host two large divisions, adopts wireless encoding and frequency division signal transmission technology between collector and Receiving Host, and anti-highfield, high-intensity magnetic field disturb, and improves data accuracy.Wherein collector comprises high-voltage signal collecting unit, digital filtering unit, wireless transmitting unit, and high-voltage signal collecting unit, digital filtering unit, wireless transmitting unit connect successively.Receiving Host comprises radio receiving unit, amplifier unit, central processing unit, screen display unit, Audio Processing Unit, voice-output unit, wherein radio receiving unit is connected with amplifier unit, central processing unit successively, central processing unit is connected with screen display unit and Audio Processing Unit respectively, and Audio Processing Unit is connected with voice-output unit.
High-voltage signal collecting unit in described instrument collector, is converted into digital signal by the simulating signal of system waveform, utilizes wireless telecommunications digital signal to be sent.Digital filtering unit in described instrument collector, adopts the technology such as Interference Cancellation, high-speed frequency-hopping and time division multiple access (TDMA), effectively prevents the strong electromagnetic in nuclear phase operation process and transmission.The simulating signal of system waveform is converted into digital signal by the wireless transmitting unit in described instrument collector, utilizes wireless communication technique, digital signal is sent.In described Receiving Host, the digital signal received is converted into simulating signal by radio receiving unit again.In described Receiving Host, digital signal is converted into simulating signal by central processing unit, process of two-way simulating signal being compared, and analyzes the phase relation of two paths of signals.
As shown in Figure 2, method of testing of the present invention comprises the steps:
The collector unit of instrument is utilized to gather the system waveform of electric system corresponding phase, again the simulating signal of system waveform is converted into digital signal, utilize wireless communication technique, digital signal is sent, the digital signal received is converted into simulating signal by Receiving Host receiving trap and central processing unit again, two-way simulating signal to be compared process simultaneously, analyze the phase relation of two paths of signals; Completed display by screen display unit and speech processes, output unit, reported test result.
Claims (7)
1.10kV ring main unit wireless core phase instrument, is characterized in that comprising collector and Receiving Host, adopts wireless encoding and frequency division signal transmission between collector and Receiving Host; Described collector comprises high-voltage signal collecting unit, digital filtering unit and wireless transmitting unit, and high-voltage signal collecting unit, digital filtering unit are connected successively with wireless transmitting unit; Described Receiving Host comprises radio receiving unit, amplifier unit, central processing unit, screen display unit, Audio Processing Unit, voice-output unit, radio receiving unit is connected with amplifier unit, central processing unit successively, central processing unit is connected with screen display unit and Audio Processing Unit respectively, and Audio Processing Unit is connected with voice-output unit.
2. 10kV ring main unit wireless core phase instrument according to claim 1, is characterized in that the simulating signal of system waveform is converted into digital signal by described high-voltage signal collecting unit, utilizes wireless telecommunications digital signal to be sent.
3. 10kV ring main unit wireless core phase instrument according to claim 1, is characterized in that described digital filtering unit adopts Interference Cancellation, high-speed frequency-hopping and time division multiple access (TDMA), prevents the strong electromagnetic in nuclear phase operation process and transmission.
4. 10kV ring main unit wireless core phase instrument according to claim 1, is characterized in that the simulating signal of system waveform is converted into digital signal by described wireless transmitting unit, utilizes wireless telecommunications digital signal to be sent.
5. 10kV ring main unit wireless core phase instrument according to claim 1, is characterized in that the digital signal received is converted into simulating signal by described radio receiving unit again.
6. 10kV ring main unit wireless core phase instrument according to claim 1, is characterized in that two-way simulating signal is compared process by described middle central processing unit, analyzes the phase relation of two paths of signals.
7. the method for testing of 10kV ring main unit wireless core phase instrument according to claim 1, is characterized in that being to comprise the steps:
Collector is utilized to gather the system waveform of electric system corresponding phase, again the simulating signal of system waveform is converted into digital signal, wireless telecommunications are utilized digital signal to be sent, the digital signal received is converted into simulating signal by the radio receiving unit of Receiving Host and central processing unit again, two-way simulating signal to be compared process simultaneously, analyze the phase relation of two paths of signals; Completed display by screen display unit and Audio Processing Unit, voice-output unit, reported test result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510137465.6A CN104730340A (en) | 2015-03-26 | 2015-03-26 | 10 kV ring main unit wireless phase checking instrument and test method |
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| CN201510137465.6A CN104730340A (en) | 2015-03-26 | 2015-03-26 | 10 kV ring main unit wireless phase checking instrument and test method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782986A (en) * | 2017-10-17 | 2018-03-09 | 苏州斯威高科信息技术有限公司 | A kind of online nuclear-phase method of low-voltage circuit, apparatus and system |
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| JP2000055961A (en) * | 1998-08-06 | 2000-02-25 | Kansai Electric Power Co Inc:The | Wireless phase rotation indicator |
| CN102081121A (en) * | 2009-11-30 | 2011-06-01 | 苏州华电电气股份有限公司 | Wireless high voltage phase checking device |
| CN101788614A (en) * | 2009-12-28 | 2010-07-28 | 江苏省电力公司苏州供电公司 | High and low voltage integrated phase-sequence phase meter and detection method thereof |
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| CN203672971U (en) * | 2013-11-22 | 2014-06-25 | 国家电网公司 | Remote phase calibration device |
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| CN107782986A (en) * | 2017-10-17 | 2018-03-09 | 苏州斯威高科信息技术有限公司 | A kind of online nuclear-phase method of low-voltage circuit, apparatus and system |
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Application publication date: 20150624 |