CN2634489Y - Circuit device of three-phase power source phase detector - Google Patents
Circuit device of three-phase power source phase detector Download PDFInfo
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- CN2634489Y CN2634489Y CN 03259609 CN03259609U CN2634489Y CN 2634489 Y CN2634489 Y CN 2634489Y CN 03259609 CN03259609 CN 03259609 CN 03259609 U CN03259609 U CN 03259609U CN 2634489 Y CN2634489 Y CN 2634489Y
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Abstract
The utility model is a circuit device for three-phase power supply phase detector in wireless operation mode, comprising a transmitting device and a receiving device. When being used, the transmitting device can gather the phase signal of the local three-phase power supply in direct contact mode, and can also transmit the modulated wave with phase relationship information in wireless transmitting mode. The receiving device, when being used, can gather the phase signal of the local three-phase power supply in direct contact mode, receive the modulated wave with phase relationship information in wireless receiving mode, and can also demodulate the received modulated wave. Compare two kinds of signals containing phase relationship to decide whether the phase is the same or different, and signal the result through an acousto-optic alarm circuit. The utility model has the advantages of easy use, high security and reliable operation.
Description
Technical field
The utility model relates to a kind of circuit arrangement of three-phase supply phase-detection instrument, especially a kind of circuit arrangement that adopts the three-phase supply phase-detection instrument of wireless working method.
Background technology
At present, adopt wired mode directly to measure usually to the detection of three-phase supply phase place generally speaking, phase detection device is made up of two devices that complement one another.A lead in one group of phase line of a device and electrical network is contacted, another device is contacted with another lead organizing in phase line of electrical network, two devices are linked together by other lead; Then the sampled voltage that contains phase information that stream oriented device obtained is carried out step-down, utilize window comparator circuit that phase place is compared again; When the phase place of the tested lead of two groups of phase lines is identical, the voltage that window comparator circuit is more identical, then no signal output or the more weak signal of output; When the phase place of two leads not simultaneously, the voltage that window comparator circuit is more different, and the stronger signal of output drives acoustic-optic alarm to report to the police; Just can judge the respective phase relation according to different alerting signals.This device is feasible to the low-tension supply phase-detection, but for high-voltage power supply, especially to the phase-detection of high-tension overhead line, owing to need two devices, and contact with the lead of two groups of phase lines simultaneously, use very inconveniently, not only cause difficulty, certain danger is also arranged to the user.
The utility model content
The purpose of this utility model is that the circuit arrangement of the good three-phase supply phase-detection instrument of a kind of property easy to use, safe is provided.
The technical scheme that realizes the utility model purpose is: the receiving trap that this circuit arrangement has dispensing device and matches with dispensing device; Its design feature is: dispensing device has transmitting antenna and signal acquisition processing circuit, phase signal modulation circuit, first window comparator circuit, first party wave generation circuit, first driving circuit and first sound light alarming circuit; Transmitting antenna and signal acquisition processing circuit are to obtain the operating frequency phase signal of this group phase line and the circuit that can send the low frequency modulated wave that is loaded with phase signal by antenna with the form of wireless transmission by the form of direct contact; The phase signal modulation circuit is modulating wave to be loaded into the circuit that obtains modulated wave on the carrier wave; The first party wave generation circuit is the signal generating circuit of exportable low-frequency square-wave signal; The operating frequency phase signal output part of transmitting antenna and signal acquisition processing circuit links to each other with the operating frequency phase signal input part of the operating frequency phase signal input part of phase signal modulation circuit and first window comparator circuit; The low-frequency square-wave signal output terminal of first party wave generation circuit links to each other with second control end of the low frequency carrier signal signal input part of phase signal modulation circuit and first driving circuit; The modulated wave low frequency signal output terminal of phase signal modulation circuit links to each other with the transmission signal input part of transmitting antenna and signal acquisition processing circuit; The output terminal of first window comparator circuit links to each other with first control end of first driving circuit; The alarm signal output ends of first driving circuit links to each other with the alerting signal input end of first sound light alarming circuit.Receiving trap has receiving antenna and signal acquisition processing circuit, phase signal demodulator circuit, second window comparator circuit, second party wave generation circuit, second driving circuit and second sound optical alarm circuit; Receiving antenna and signal acquisition processing circuit are to obtain the operating frequency phase signal of this group phase line and the circuit that can receive the low frequency modulated wave that is loaded with phase signal by antenna with the form of wireless receiving by the form of direct contact; Receiving antenna and signal acquisition processing circuit have operating frequency phase signal output part and modulated wave signal output part; The phase signal demodulator circuit is can be with the modulated wave demodulation that receives and obtain the circuit that power frequency is separated harmonic; The second party wave generation circuit is the signal generating circuit of exportable low-frequency square-wave signal; The operating frequency phase signal output part of receiving antenna and signal acquisition processing circuit links to each other with an input end of second window comparator circuit, and phase signal demodulator circuit power frequency is separated the harmonic signal output part and linked to each other with another input end of second window comparator circuit; The output terminal of second window comparator circuit links to each other with first control end of second driving circuit; The low-frequency square-wave signal output terminal of second party wave generation circuit links to each other with second control end of second driving circuit; The alarm signal output ends of second driving circuit links to each other with the alerting signal input end of second sound optical alarm circuit.
Above-mentioned dispensing device also has first counting circuit; First driving circuit also is provided with count signal input end and the 3rd control end; The count signal output terminal of first driving circuit links to each other with the count signal input end of first counting circuit, and the control signal output ends of first counting circuit links to each other with the 3rd control end of first driving circuit; The first party wave generation circuit is the signal generating circuit of frequency adjustable.The transmitting antenna of dispensing device and signal acquisition processing circuit have first electrode, first telefault and a LC tuned circuit; First electrode is transmitting antenna; The one LC tuned circuit is composed in parallel by second telefault and variable condenser; First telefault and first electrode polyphone; Second telefault of the one LC tuned circuit and the coupling of first telefault; The signal output part of the one LC tuned circuit is the operating frequency phase signal output part of transmitting antenna and signal acquisition processing circuit.Dispensing device also has first shell; First electrode of dispensing device is positioned at outside first shell, and the signal acquisition processing circuit of dispensing device, phase signal modulation circuit, first window comparator circuit, first party wave generation circuit, first driving circuit, first sound light alarming circuit and first counting circuit are arranged in first shell; First electrode is an integral piece, by superposed Hook be positioned at the lower electrode main body and constitute; The length of the above-below direction of the Hook of first electrode is 30 to 50 millimeters, and the length of the above-below direction of electrode body is 20 to 50 millimeters.First shell of dispensing device is provided with the link that can be connected with first insulating bar when using.
Above-mentioned receiving trap also has second counting circuit; Second driving circuit also is provided with count signal input end and the 3rd control end; The count signal output terminal of second driving circuit links to each other with the count signal input end of second counting circuit, and the control signal output ends of second counting circuit links to each other with the 3rd control end of second driving circuit; The second party wave generation circuit is the signal generating circuit of frequency adjustable.The receiving antenna of receiving trap and signal acquisition processing circuit have second electrode, the 3rd telefault and the 2nd LC tuned circuit; Second electrode is receiving antenna; The 2nd LC tuned circuit is composed in parallel by the 4th telefault and variable condenser; The 3rd telefault and second electrode polyphone; The 4th telefault of the 2nd LC tuned circuit and the coupling of the 3rd telefault; The signal output part of the 2nd LC tuned circuit is the operating frequency phase signal output part of receiving antenna and signal acquisition processing circuit.Receiving trap also has second shell; Second electrode of receiving trap is positioned at outside second shell, and the signal acquisition processing circuit of receiving trap, phase signal demodulator circuit, second window comparator circuit, second party wave generation circuit, second driving circuit, second sound optical alarm circuit and second counting circuit are arranged in second shell; Second electrode of receiving trap is an integral piece, by superposed folding body be positioned at the lower electrode main body and constitute.The length of the above-below direction of the folding body of second electrode is 30 to 50 millimeters, and the length of the above-below direction of electrode body is 20 to 50 millimeters.Second shell of receiving trap is provided with the link that can be connected with second insulating bar when using.
The utlity model has positive effect: (1) the utility model adopts wireless mode to phase-detection, not only use simple and reliable, and convenient, safety.No any linking to each other on electric between dispensing device in two measurement mechanisms and the receiving trap, when measuring, adopt wireless mode to carry out the phase data transmission, phase place to three-phase supply detects in real time, can judge rightly to phase place, and can measure respective phase relation and circuit whether charged.(2) dispensing device of the present utility model and receiving trap are combined together use usually, can dispensing device be connected on first insulating bar earlier, and the velamen that hangs over one group of phase line of the hook by first electrode surveys on the lead and directly contacts with tested lead, can test; Simultaneously first electrode sends signal as the antenna that transmits of dispensing device to receiving trap again.Receiving trap then can be connected on second insulating bar, and surveys on lead and directly contact with tested lead by velamen that second electrode withstands on another group phase line, thereby can carry out relevant test; Second electrode also can be used as accepts the radio signal with phase propetry that the antenna transmission and reception apparatus sends, phase place that records and the phase propetry signal that receives are compared in real time, if the difference at phasing degree then is judged as homophase in ± 30 ° of scopes, if the difference at phasing degree then is judged as out-phase greater than ± 30 °, and represent whether be homophase, whether also can represent has with different photosignals.(3) two devices need not connect by lead, install light, simple, the work of installing in addition whether must the peripheral hardware switch, whether the duty of two devices is contacted with lead by proving installation is controlled, when just contacting with lead, the electrode of dispensing device and receiving trap carries out work automatically, automatically do not quit work when the electrode of dispensing device and receiving trap does not just contact with lead, this set is comparatively energy-conservation.(4) the utility model adopts low frequency carrier signal to carry out wireless transmission and reception (is avoided 50 hertz work frequency, can in 60 to 250 kilo hertzs scope, select), walked out the high frequency that has only that it is conventionally believed that and just be suitable as the mistaken ideas of carrier wave, doing carrier wave with low frequency radio wave is feasible for measuring at a distance of 20 meters ways with the power phase relation of the lead of interior not isopen group.
Description of drawings
Fig. 1 is a kind of synoptic diagram of the present utility model.
Fig. 2 is a kind of circuit block diagram of dispensing device of the present utility model.
Fig. 3 is a kind of circuit block diagram of receiving trap of the present utility model.
Fig. 4 is dispensing device of the present utility model a kind of synoptic diagram when using.
Fig. 5 is receiving trap of the present utility model a kind of synoptic diagram when using.
Embodiment
(embodiment 1)
See Fig. 1, Fig. 2 and Fig. 4, the circuit arrangement of present embodiment is made up of dispensing device 1 and receiving trap 2.Dispensing device 1 has transmitting antenna and signal acquisition processing circuit 11, phase signal modulation circuit 12, first window comparator circuit 13, first party wave generation circuit 14, first driving circuit 15, first sound light alarming circuit 16, first counting circuit 17 and first shell 18.
Transmitting antenna and signal acquisition processing circuit 11 are to obtain the operating frequency phase signal of this group phase line and the circuit that can send the low frequency modulated wave that is loaded with phase signal by antenna with the form of wireless transmission by the form of direct contact.Transmitting antenna and signal acquisition processing circuit 11 have first electrode, first telefault and a LC tuned circuit; First electrode is transmitting antenna; The one LC tuned circuit is composed in parallel by second telefault and variable condenser; First telefault and first electrode polyphone; Second telefault of the one LC tuned circuit and the coupling of first telefault; The signal output part of the one LC tuned circuit is the operating frequency phase signal output part of transmitting antenna and signal acquisition processing circuit 11.First electrode of dispensing device 1 is positioned at outside first shell 18, and the signal acquisition processing circuit of dispensing device 1, phase signal modulation circuit 12, first window comparator circuit 13, first party wave generation circuit 14, first driving circuit 15, first sound light alarming circuit 16 and first counting circuit 17 are arranged in first shell 18; The first electrode 11-1 is an integral piece, by superposed Hook 11-2 be positioned at lower electrode main body 11-3 and constitute; The length of the above-below direction of the Hook 11-2 of the first electrode 11-1 is 30 millimeters, and the length of the above-below direction of electrode body 11-3 is 30 millimeters.First shell 18 of dispensing device 1 is provided with the link that can be connected with first insulating bar 19 when using.
Phase signal modulation circuit 12 is modulating wave to be loaded into the circuit that obtains modulated wave on the carrier wave.First party wave generation circuit 14 is signal generating circuits of exportable low-frequency square-wave signal and frequency adjustable.First driving circuit 15 has first control end, second control end, the 3rd control end, alarm signal output ends and count signal output terminal.First sound light alarming circuit 16 mainly is made up of light emitting diode and hummer.
The operating frequency phase signal output part of transmitting antenna and signal acquisition processing circuit 11 links to each other with the operating frequency phase signal input part of the operating frequency phase signal input part of phase signal modulation circuit 12 and first window comparator circuit 13; The low-frequency square-wave signal output terminal of first party wave generation circuit 14 links to each other with second control end of the low frequency carrier signal signal input part of phase signal modulation circuit 12 and first driving circuit 15; The modulated wave low frequency signal output terminal of phase signal modulation circuit 12 links to each other with the transmission signal input part of transmitting antenna and signal acquisition processing circuit 11; The output terminal of first window comparator circuit 13 links to each other with first control end of first driving circuit 15; The alarm signal output ends of first driving circuit 15 links to each other with the alerting signal input end of first sound light alarming circuit 16; The count signal output terminal of first driving circuit 15 links to each other with the count signal input end of first counting circuit 17, and the control signal output ends of first counting circuit 17 links to each other with the 3rd control end of first driving circuit 15.
See Fig. 3 and Fig. 5, receiving trap 2 has receiving antenna and signal acquisition processing circuit 21, phase signal demodulator circuit 22, second window comparator circuit 23, second party wave generation circuit 24, second driving circuit 25, second sound optical alarm circuit 26, second counting circuit 27 and second shell 28.
Receiving antenna and signal acquisition processing circuit 21 are to obtain the operating frequency phase signal of this group phase line and the circuit that can receive the low frequency modulated wave that is loaded with phase signal by antenna with the form of wireless receiving by the form of direct contact; Receiving antenna and signal acquisition processing circuit 21 have operating frequency phase signal output part and modulated wave signal output part; Receiving antenna and signal acquisition processing circuit 21 have second electrode, the 3rd telefault and the 2nd LC tuned circuit; Second electrode is receiving antenna: the 2nd LC tuned circuit is composed in parallel by the 4th telefault and variable condenser; The 3rd telefault and second electrode polyphone; The 4th telefault of the 2nd LC tuned circuit and the coupling of the 3rd telefault; The signal output part of the 2nd LC tuned circuit is the operating frequency phase signal output part of receiving antenna and signal acquisition processing circuit 21.Second electrode of receiving trap 2 is positioned at outside second shell 28, and the signal acquisition processing circuit of receiving trap 2, phase signal demodulator circuit 22, second window comparator circuit 23, second party wave generation circuit 24, second driving circuit 25, second sound optical alarm circuit 26 and second counting circuit 27 are arranged in second shell 28; The second electrode 21-1 of receiving trap 2 is an integral piece, by superposed folding body 21-2 be positioned at lower electrode main body 21-3 and constitute.The length of the above-below direction of the folding body 21-2 of second electrode is 40 millimeters, and the length of the above-below direction of electrode body 21-3 is 20 millimeters.Second shell 28 of receiving trap 2 is provided with the link that can be connected with second insulating bar 29 when using.
Phase signal demodulator circuit 22 is can be with the modulated wave demodulation that receives and obtain the circuit that power frequency is separated harmonic; Second party wave generation circuit 24 is signal generating circuits of exportable low-frequency square-wave signal and frequency adjustable; Second driving circuit 25 has first control end, second control end, the 3rd control end, alarm signal output ends and count signal output terminal.Second sound optical alarm circuit 26 mainly is made up of light emitting diode and hummer.
The operating frequency phase signal output part of receiving antenna and signal acquisition processing circuit 21 links to each other with an input end of second window comparator circuit 23, and phase signal demodulator circuit 22 power frequencies are separated the harmonic signal output part and linked to each other with another input end of second window comparator circuit 23; The output terminal of second window comparator circuit 23 links to each other with first control end of second driving circuit 25; The low-frequency square-wave signal output terminal of second party wave generation circuit 24 links to each other with second control end of second driving circuit 25; The alarm signal output ends of second driving circuit 25 links to each other with the alerting signal input end of second sound optical alarm circuit 26.The count signal output terminal of second driving circuit 25 links to each other with the count signal input end of second counting circuit 27, and the control signal output ends of second counting circuit 27 links to each other with the 3rd control end of second driving circuit 25.
See Fig. 1 to Fig. 5, dispensing device 1 of the present utility model and receiving trap are formed the use that cooperatively interacts of a system.When the dispensing device 1 of system was worked, transmitting antenna (the first electrode 11-1) was used for the acquisition phase signal simultaneously.When Measurement Phase, the first electrode 11-1 contacts with line wire.On the first electrode 11-1, just be coupled out the electromagnetic signal that the frequency with phase relation is power frequency (50 hertz) according to Theory of Electromagnetic Field, electromagnetic signal with first telefault that the first electrode 11-1 links to each other in produce induction electromotive force.Selecting frequency characteristic by a LC resonant circuit is delivered to phase signal modulation circuit 12 to the mains voltage signal with phase relation, after the mains voltage signal that comprises phase relation that phase signal modulation circuit 12 will receive is modulated as the carrier wave (100 hertz) of modulating wave and 14 inputs of first party wave generation circuit, export the modulated wave signal that contains phase information from the modulated wave low frequency signal output terminal of phase signal modulation circuit 12, send this low frequency modulated wave to receiving trap 2 through transmitting antenna again.First window comparator circuit 13 is used for detection line voltage, if circuit has electricity (the first electrode 11-1 contacts with circuit during measurement), the voltage of first control end of transporting to first driving circuit 15 of first window comparator circuit 13 change (becoming low level), and trigger 15 work of first driving circuit, and then make first sound light alarming circuit 16 can send the sound and light alarm indicator signal.The first party wave generation circuit 14 of frequency adjustable also sends second control end that controls signal to first driving circuit 15 except that as sending the carrier signal, controls luminotron flicker frequency and hummer tone in first sound light alarming circuit 16.When the pulse number that first counting circuit 17 receives at its count signal input end reaches predetermined value (for example 5 times), then export the 3rd control end of trigger pip to the first driving circuit 15 from its control signal output ends, and first driving circuit 15 is quit work, thereby the luminotron flicker number of times of first sound light alarming circuit 16 and hummer sounding number of times are controlled by first counting circuit 17.Entire circuit adopts external 9V power supply power supply (1 batteries).
When the receiving trap 2 of system is worked, the low frequency radio modulated wave signal that is loaded with the phase-modulated wave signal that receiving antenna (the second electrode 21-1) transmission and reception apparatus 1 sends, this signal is transported to phase signal demodulator circuit 22; Phase signal demodulator circuit 22 with the modulated wave demodulation after, the mains voltage signal that will comprise phase relation is transported to second window comparator circuit 23.Simultaneously, the second electrode 21-1 also is used to gather the phase signal of local lead.When measuring local lead phase place, the second electrode 21-1 contacts with line wire; On the second electrode 21-1, just be coupled out the electromagnetic signal that the frequency with phase relation is power frequency (50 hertz) according to Theory of Electromagnetic Field, electromagnetic signal with the 3rd telefault that the second electrode 21-1 links to each other in produce induction electromotive force.Selecting frequency characteristic by the 2nd LC resonant circuit is delivered to second window comparator circuit 23 to the mains voltage signal with phase relation.Second window comparator circuit 23 will record the local signal with phase relation and compare with the signal with phase relation that receives the dispensing device end, if two line voltage distribution homophases that contain phase signal, the output voltage of second window comparator circuit 23 change (becoming low level) then, and trigger 25 work of second driving circuit, and then make second sound optical alarm circuit 26 can send the strong acoustooptic alerting signal.The second party wave generation circuit 24 of frequency adjustable sends second control end that controls signal to second driving circuit 25, control luminotron flicker frequency and control hummer tone.When the pulse number that second counting circuit 27 receives at its count signal input end reaches predetermined value (for example 5 times), then export the 3rd control end of trigger pip to the second driving circuit 25, and second driving circuit 25 is quit work from its control signal output ends.If out-phase, then the output voltage of second window comparator circuit 23 is higher relatively, and makes 26 of second sound optical alarm circuits can send a faint optical signal, only represents that root lead that receiving trap 2 is contacted has.Entire circuit adopts external 9V power supply power supply (1 batteries).
Claims (10)
1, a kind of circuit arrangement of three-phase supply phase-detection instrument, the receiving trap (2) that has dispensing device (1) and match with dispensing device; It is characterized in that:
Dispensing device (1) has transmitting antenna and signal acquisition processing circuit (11), phase signal modulation circuit (12), first window comparator circuit (13), first party wave generation circuit (14), first driving circuit (15) and first sound light alarming circuit (16); Transmitting antenna and signal acquisition processing circuit (11) are to obtain the operating frequency phase signal of this group phase line and the circuit that can send the low frequency modulated wave that is loaded with phase signal by antenna with the form of wireless transmission by the form of direct contact; Phase signal modulation circuit (12) is modulating wave to be loaded into the circuit that obtains modulated wave on the carrier wave; First party wave generation circuit (14) is the signal generating circuit of exportable low-frequency square-wave signal; The operating frequency phase signal output part of transmitting antenna and signal acquisition processing circuit (11) links to each other with the operating frequency phase signal input part of phase signal modulation circuit (12) and the operating frequency phase signal input part of first window comparator circuit (13); The low-frequency square-wave signal output terminal of first party wave generation circuit (14) links to each other with the low frequency carrier signal signal input part of phase signal modulation circuit (12) and second control end of first driving circuit (15); The modulated wave low frequency signal output terminal of phase signal modulation circuit (12) links to each other with the transmission signal input part of transmitting antenna and signal acquisition processing circuit (11); The output terminal of first window comparator circuit (13) links to each other with first control end of first driving circuit (15); The alarm signal output ends of first driving circuit (15) links to each other with the alerting signal input end of first sound light alarming circuit (16);
Receiving trap (2) has receiving antenna and signal acquisition processing circuit (21), phase signal demodulator circuit (22), second window comparator circuit (23), second party wave generation circuit (24), second driving circuit (25) and second sound optical alarm circuit (26); Receiving antenna and signal acquisition processing circuit (21) are to obtain the operating frequency phase signal of this group phase line and the circuit that can receive the low frequency modulated wave that is loaded with phase signal by antenna with the form of wireless receiving by the form of direct contact; Receiving antenna and signal acquisition processing circuit (21) have operating frequency phase signal output part and modulated wave signal output part; Phase signal demodulator circuit (22) is can be with the modulated wave demodulation that receives and obtain the circuit that power frequency is separated harmonic; Second party wave generation circuit (24) is the signal generating circuit of exportable low-frequency square-wave signal; The operating frequency phase signal output part of receiving antenna and signal acquisition processing circuit (21) links to each other with an input end of second window comparator circuit (23), and phase signal demodulator circuit (22) power frequency is separated the harmonic signal output part and linked to each other with another input end of second window comparator circuit (23); The output terminal of second window comparator circuit (23) links to each other with first control end of second driving circuit (25); The low-frequency square-wave signal output terminal of second party wave generation circuit (24) links to each other with second control end of second driving circuit (25); The alarm signal output ends of second driving circuit (25) links to each other with the alerting signal input end of second sound optical alarm circuit (26).
2, the circuit arrangement of three-phase supply phase-detection instrument according to claim 1 is characterized in that: dispensing device (1) also has first counting circuit (17); First driving circuit (15) also is provided with count signal input end and the 3rd control end; The count signal output terminal of first driving circuit (15) links to each other with the count signal input end of first counting circuit (17), and the control signal output ends of first counting circuit (17) links to each other with the 3rd control end of first driving circuit (15); First party wave generation circuit (14) is the signal generating circuit of frequency adjustable.
3, the circuit arrangement of three-phase supply phase-detection instrument according to claim 1 is characterized in that: the transmitting antenna of dispensing device (1) and signal acquisition processing circuit (11) have first electrode, first telefault and a LC tuned circuit; First electrode is transmitting antenna; The one LC tuned circuit is composed in parallel by second telefault and variable condenser; First telefault and first electrode polyphone; Second telefault of the one LC tuned circuit and the coupling of first telefault; The signal output part of the one LC tuned circuit is the operating frequency phase signal output part of transmitting antenna and signal acquisition processing circuit (11).
4, the circuit arrangement of three-phase supply phase-detection instrument according to claim 3 is characterized in that: dispensing device (1) also has first shell (18); First electrode of dispensing device (1) is positioned at outside first shell (18), and the signal acquisition processing circuit of dispensing device (1), phase signal modulation circuit (12), first window comparator circuit (13), first party wave generation circuit (14), first driving circuit (15), first sound light alarming circuit (16) and first counting circuit (17) are arranged in first shell (18); First electrode (11-1) is an integral piece, by superposed Hook (11-2) be positioned at lower electrode main body (11-3) and constitute; The length of the above-below direction of the Hook (11-2) of first electrode (11-1) is 30 to 50 millimeters, and the length of the above-below direction of electrode body (11-3) is 20 to 50 millimeters.
5, the circuit arrangement of three-phase supply phase-detection instrument according to claim 4 is characterized in that: first shell (18) of dispensing device (1) is provided with the link that can be connected with first insulating bar (19) when using.
6, the circuit arrangement of three-phase supply phase-detection instrument according to claim 1 is characterized in that: receiving trap (2) also has second counting circuit (27); Second driving circuit (25) also is provided with count signal input end and the 3rd control end; The count signal output terminal of second driving circuit (25) links to each other with the count signal input end of second counting circuit (27), and the control signal output ends of second counting circuit (27) links to each other with the 3rd control end of second driving circuit (25); Second party wave generation circuit (24) is the signal generating circuit of frequency adjustable.
7, the circuit arrangement of three-phase supply phase-detection instrument according to claim 6 is characterized in that: the receiving antenna of receiving trap (2) and signal acquisition processing circuit (21) have second electrode, the 3rd telefault and the 2nd LC tuned circuit; Second electrode is receiving antenna; The 2nd LC tuned circuit is composed in parallel by the 4th telefault and variable condenser; The 3rd telefault and second electrode polyphone; The 4th telefault of the 2nd LC tuned circuit and the coupling of the 3rd telefault; The signal output part of the 2nd LC tuned circuit is the operating frequency phase signal output part of receiving antenna and signal acquisition processing circuit (21).
8, the circuit arrangement of three-phase supply phase-detection instrument according to claim 7 is characterized in that: receiving trap (2) also has second shell (28); Second electrode of receiving trap (2) is positioned at outside second shell (28), and the signal acquisition processing circuit of receiving trap (2), phase signal demodulator circuit (22), second window comparator circuit (23), second party wave generation circuit (24), second driving circuit (25), second sound optical alarm circuit (26) and second counting circuit (27) are arranged in second shell (28); Second electrode (21-1) of receiving trap (2) is an integral piece, by superposed folding body (21-2) be positioned at lower electrode main body (21-3) and constitute.
9, the circuit arrangement of three-phase supply phase-detection instrument according to claim 8, it is characterized in that: the length of the above-below direction of the folding body (21-2) of second electrode is 30 to 50 millimeters, and the length of the above-below direction of electrode body (21-3) is 20 to 50 millimeters.
10, the circuit arrangement of three-phase supply phase-detection instrument according to claim 8 is characterized in that: second shell (28) of receiving trap (2) is provided with the link that can be connected with second insulating bar (29) when using.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03259609 CN2634489Y (en) | 2003-07-14 | 2003-07-14 | Circuit device of three-phase power source phase detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03259609 CN2634489Y (en) | 2003-07-14 | 2003-07-14 | Circuit device of three-phase power source phase detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2634489Y true CN2634489Y (en) | 2004-08-18 |
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ID=34296116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03259609 Expired - Fee Related CN2634489Y (en) | 2003-07-14 | 2003-07-14 | Circuit device of three-phase power source phase detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2634489Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432686C (en) * | 2005-07-08 | 2008-11-12 | 河海大学常州校区 | Circuit device of leakage current detector of lightning protector and its operating method |
| CN100446047C (en) * | 2007-02-09 | 2008-12-24 | 河海大学常州校区 | The circuit device of the power grid harmonious radio detector and its working method |
| CN105021892A (en) * | 2015-08-04 | 2015-11-04 | 云南电网有限责任公司红河供电局 | Intelligent device for checking phases of cables |
| CN111812422A (en) * | 2019-04-11 | 2020-10-23 | 江苏陆志电气科技有限公司 | Wireless nuclear phase instrument system |
-
2003
- 2003-07-14 CN CN 03259609 patent/CN2634489Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432686C (en) * | 2005-07-08 | 2008-11-12 | 河海大学常州校区 | Circuit device of leakage current detector of lightning protector and its operating method |
| CN100446047C (en) * | 2007-02-09 | 2008-12-24 | 河海大学常州校区 | The circuit device of the power grid harmonious radio detector and its working method |
| CN105021892A (en) * | 2015-08-04 | 2015-11-04 | 云南电网有限责任公司红河供电局 | Intelligent device for checking phases of cables |
| CN105021892B (en) * | 2015-08-04 | 2018-03-06 | 云南电网有限责任公司红河供电局 | A kind of intelligent cable phase checking device |
| CN111812422A (en) * | 2019-04-11 | 2020-10-23 | 江苏陆志电气科技有限公司 | Wireless nuclear phase instrument system |
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