CN102236059B - Induced frequency-discrimination open-phase remote alarm for distribution transformer - Google Patents
Induced frequency-discrimination open-phase remote alarm for distribution transformer Download PDFInfo
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- CN102236059B CN102236059B CN 201010166772 CN201010166772A CN102236059B CN 102236059 B CN102236059 B CN 102236059B CN 201010166772 CN201010166772 CN 201010166772 CN 201010166772 A CN201010166772 A CN 201010166772A CN 102236059 B CN102236059 B CN 102236059B
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Abstract
The invention provides an induced frequency-discrimination open-phase remote alarm for a distribution transformer. The alarm comprises a signal collection circuit, a signal judgment circuit and a wireless alarm transmission circuit, wherein the signal collection circuit is connected with the signal judgment circuit; the signal judgment circuit is connected with the wireless alarm transmission circuit; and when a running distribution transformer is in open phase due to a fused melt or other reasons on a certain phase of fuse, an inductive electrode does not have induced electricity, the G electrode of an insulated gate field effect thyristor does not have electricity, the S electrode and D electrode of the insulated gate field effect thyristor are connected, a normally open contact of a solid state relay is closed, the open phase signal is instantly transferred to the wireless alarm transmission circuit to perform remote alarm, the signal is transferred to the mobile phone of an operator on duty, and the operator on duty can immediately process the power-off accident after receiving the alarm condition, so that the time for processing failure of electrical equipment is shortened, the power supply reliability is improved, and enterprise and social benefit are increased.
Description
Technical field
The present invention relates to a kind of substation transformer phase remote alarm technique in service, is a kind ofly to be applied to power distribution network supply transformer when operation and to carry out a distant place when melt fusing of high and low pressure fuse occurs and report to the police.
Background technology
At present, along with the industrial and agricultural production great development, national economy improves rapidly, and living standards of the people constantly promote, and power industry is also developed on an unprecedented scale, and the nationwide integrated power grid construction is maked rapid progress.the electric power of electrical network is delivered to huge numbers of families after by the substation transformer transformation, the substation transformer of current operation, and following 400V distribution system, due to can not Real Time Monitoring, basically be out of order, carry out overhaul of the equipments by the user notification maintainer, fault handling time of dragging is long like this, the user is had a power failure impact greatly, therefore power supply reliability is low, the device damage rate is high, can not satisfy the requirement that living standards of the people improve constantly, if popularize in an all-round way to use transformer phase failure distant place alarm technique, when transformer generation phase shortage accident, maintainer's very first time can in time rush to repair to the scene, shorten the accident treatment time, improve delivery, increase enterprise and social benefit.Active promoting function is also played in development to the distribution system intellectualized technology simultaneously.
Summary of the invention
Substation transformer induction frequency discrimination type open-phase remote warner comprises signal acquisition circuit, signal judging circuit, wireless alarming emissioning circuit; Described signal acquisition circuit connects described signal judging circuit, and signal judging circuit connects described wireless alarming emissioning circuit.
described signals collecting, decision circuitry comprise an induction electrode, an insulated-gate field-effect thyristor, and a potentiometer, 4 resistors are respectively R1, R2, R3, R4, and 3 capacitors are respectively C1, C2, C3, a solid-state relay, described solid-state relay has four terminations, is respectively 1,2,3,4, and described insulated-gate field-effect thyristor has three utmost points, is respectively D, S, G, described induction electrode connects respectively described resistor R1, R2 one end, the described resistor R1 other end connects respectively the described insulated-gate field-effect thyristor G utmost point, described capacitor C1 one end, the described resistor R2 other end connects respectively described resistor R3 one end, described capacitor C2 one end, the described capacitor C2 other end connects respectively the described capacitor C1 other end, described capacitor C3 one end, described solid 2 terminations of continuing, described potentiometer two ends, the described insulated-gate field-effect thyristor S utmost point connects described resistor R4 one end, the described insulated-gate field-effect thyristor D utmost point described solid-state relay of connection 1 termination, described solid-state relay 3, 4 terminations are output signal end, the described resistor R4 other end connects positive source, described resistance R 3 other ends, the described capacitor C3 other end, the described potentiometer other end connects power cathode.
Described wireless alarming emissioning circuit comprises signal input circuit, coding circuit, radiating circuit; Described signal input circuit is connected with described signal judging circuit, and described signal input circuit output connects described coding circuit, and coding circuit connects described radiating circuit.
This substation transformer induction frequency discrimination type open-phase remote warner is to utilize advanced electronic technology, develop a kind of for substation transformer phase remote alarming and managing in service, the relative prior art of the present invention has outstanding substantive distinguishing features and significant progressive, specifically, this substation transformer induction frequency discrimination type open-phase remote warner technical progress, reasonable in design, desirable realization substation transformer phase shortage alarming and managing in service, will play positive guarantee effect for electric power netting safe running, the concrete advantage of this substation transformer open-phase remote warner in service:
1, this substation transformer induction frequency discrimination type open-phase remote warner has the frequency discrimination function, only gathers the electrical signal of reaction of 50HZ, and other signal is noiseless to phase failure alarm.
2, substation transformer of the present invention open-phase remote warner in service, when the transformer phase failure accident occured, maintainer's very first time can in time rush to repair to the scene, shortened the accident treatment time, improved delivery, increased enterprise and social benefit.Positive facilitation is also played in development to the distribution system intellectualized technology simultaneously.
3, strengthen the safe operation management of power distribution network, greatly improved power supply reliability, promoted the effect of the safety management integral level of power distribution network.
Description of drawings
Fig. 1 is substation transformer induction frequency discrimination type open-phase remote warner block diagram of the present invention;
Fig. 2 is signals collecting of the present invention, decision circuitry wiring diagram;
Fig. 3 is wireless alarming emissioning circuit block diagram of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is substation transformer induction frequency discrimination type open-phase remote warner block diagram of the present invention, comprises signal acquisition circuit 1, signal judging circuit 2, wireless alarming emissioning circuit 3; Described signal acquisition circuit connects described signal judging circuit, and signal judging circuit connects described wireless alarming emissioning circuit.
The signal acquisition circuit of phase failure alarm is arranged on respectively the high and low side fuse load-side of substation transformer, when the melt of a certain phase fuse fuses, the signals collecting decision circuitry, immediately this default phase signal is passed to wireless alarming emissioning circuit, carrying out a distant place reports to the police, this signal is delivered on operator on duty's mobile phone, the operator on duty obtain alarm condition at once the very first time change to the scene, power outage is processed immediately.
Fig. 2 is signals collecting of the present invention, decision circuitry wiring diagram, described signals collecting, decision circuitry comprise an induction electrode, an insulated-gate field-effect thyristor, a potentiometer, 4 resistors are respectively R1, R2, R3, R4,3 capacitors, be respectively C1, C2, C3, a solid-state relay, described solid-state relay has four terminations, is respectively 1,2,3,4, and described insulated-gate field-effect thyristor has three utmost points, is respectively D, S, G, described induction electrode connects respectively described resistor R1, R2 one end, the described resistor R1 other end connects respectively the described insulated-gate field-effect thyristor G utmost point, described capacitor C1 one end, the described resistor R2 other end connects respectively described resistor R3 one end, described capacitor C2 one end, the described capacitor C2 other end connects respectively the described capacitor C1 other end, described capacitor C3 one end, described solid 2 terminations of continuing, described potentiometer two ends, the described insulated-gate field-effect thyristor S utmost point connects described resistor R4 one end, the described insulated-gate field-effect thyristor D utmost point described solid-state relay of connection 1 termination, described solid-state relay 3, 4 terminations are output signal end, the described resistor R4 other end connects positive source, described resistance R 3 other ends, the described capacitor C3 other end, the described potentiometer other end connects power cathode.
During normal substation transformer operation, induction electrode A induction has electricity, and the G utmost point of insulated-gate field-effect thyristor V1 has electricity, makes between the S, the D utmost point of insulated-gate field-effect thyristor V1 resistance very large and block, circuit can not conducting, makes the normally opened contact of solid-state relay SSR at open position.
The melt fusing of a certain phase fuse occurs when the substation transformer of operation, induction electrode A does not have induced electricity, the G utmost point of insulated-gate field-effect thyristor V1 does not have electricity, make between the S, the D utmost point of insulated-gate field-effect thyristor V1 resistance very little, circuit turn-on, make the normally opened contact of solid-state relay SSR in make-position, immediately this default phase signal is passed to wireless alarming emissioning circuit, carrying out a distant place reports to the police, this signal is delivered on operator on duty's mobile phone, the operator on duty obtains alarm condition, and the very first time is carried out the power outage processing to the scene at once.
Form the prison frequency circuit by R1, C1, effect is the electrical signal of reaction that only gathers 50HZ, and other signal is noiseless to phase failure alarm.
Fig. 3 is wireless alarming emissioning circuit block diagram of the present invention, and described wireless alarming emissioning circuit comprises signal input circuit 31, coding circuit 32, radiating circuit 33; Described signal input circuit is connected with described signal judging circuit, and described signal input circuit output connects described coding circuit, and coding circuit connects described radiating circuit.
Wireless alarming emissioning circuit can adopt mobile module, also can adopt radio transmitter.
The melt fusing of a certain phase fuse occurs when the substation transformer of operation, induction electrode A induction does not have electricity, the G utmost point of insulated-gate field-effect thyristor V1 does not have electricity, make between the S, the D utmost point of insulated-gate field-effect thyristor V1 resistance very little, circuit turn-on, make the normally opened contact of solid-state relay SSR in make-position, immediately this default phase signal is passed to wireless alarming emissioning circuit, carrying out a distant place reports to the police, this signal is delivered on operator on duty's mobile phone, the operator on duty obtains alarm condition and carries out the power outage processing at once.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment, the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can modify or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (1)
1. a substation transformer induction frequency discrimination type open-phase remote warner, is characterized in that: comprise signal acquisition circuit, signal judging circuit, wireless alarming emissioning circuit; Described signal acquisition circuit connects described signal judging circuit, and signal judging circuit connects described wireless alarming emissioning circuit;
described signal acquisition circuit, signal judging circuit comprise an induction electrode, an insulated-gate field-effect thyristor, and a potentiometer, 4 resistors are respectively R1, R2, R3, R4, and 3 capacitors are respectively C1, C2, C3, a solid-state relay, described solid-state relay has four terminations, is respectively 1,2,3,4, and wherein 3,4 terminations are output signal end, and described insulated-gate field-effect thyristor has three utmost points, is respectively D, S, G, described induction electrode connects respectively described resistor R1, R2 one end, the described resistor R1 other end connects respectively the described insulated-gate field-effect thyristor G utmost point, described capacitor C1 one end, the described resistor R2 other end connects respectively described resistor R3 one end, described capacitor C2 one end, the described capacitor C2 other end connects respectively the described capacitor C1 other end, described capacitor C3 one end, described solid-state relay 2 terminations, described potentiometer one stiff end and sliding end, the described insulated-gate field-effect thyristor S utmost point connects described resistor R4 one end, the described insulated-gate field-effect thyristor D utmost point described solid-state relay of connection 1 termination, the described resistor R4 other end connects positive source, described resistance R 3 other ends, the described capacitor C3 other end, another stiff end of described potentiometer connects power cathode, described R1, C1 form frequency-discriminating circuit, gather the electrical signal of reaction of 50HZ,
Described wireless alarming emissioning circuit comprises signal input circuit, coding circuit, radiating circuit; Described signal input circuit is connected with described signal judging circuit, and described signal input circuit output connects described coding circuit, and coding circuit connects described radiating circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010166772 CN102236059B (en) | 2010-04-23 | 2010-04-23 | Induced frequency-discrimination open-phase remote alarm for distribution transformer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010166772 CN102236059B (en) | 2010-04-23 | 2010-04-23 | Induced frequency-discrimination open-phase remote alarm for distribution transformer |
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| CN102236059A CN102236059A (en) | 2011-11-09 |
| CN102236059B true CN102236059B (en) | 2013-06-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102298098A (en) * | 2010-06-24 | 2011-12-28 | 陈家斌 | Intelligent remote phase-missing alarm device for distribution transformer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2565183Y (en) * | 2002-07-17 | 2003-08-06 | 赵奎林 | Under-voltage open-phase monitor |
| CN1811843A (en) * | 2005-01-24 | 2006-08-02 | 深圳市佳音达通讯电子技术有限公司 | Method for determining correspondence relationship of user electric meter and distribution transformer |
| CN201138498Y (en) * | 2008-01-08 | 2008-10-22 | 武汉大学 | Theft-resisting early alarming apparatus of distributing transformer based on GSM technique |
| CN201726110U (en) * | 2010-04-23 | 2011-01-26 | 陈家斌 | Distribution-transformer induced frequency-discrimination open-phase wireless alarm |
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2010
- 2010-04-23 CN CN 201010166772 patent/CN102236059B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2565183Y (en) * | 2002-07-17 | 2003-08-06 | 赵奎林 | Under-voltage open-phase monitor |
| CN1811843A (en) * | 2005-01-24 | 2006-08-02 | 深圳市佳音达通讯电子技术有限公司 | Method for determining correspondence relationship of user electric meter and distribution transformer |
| CN201138498Y (en) * | 2008-01-08 | 2008-10-22 | 武汉大学 | Theft-resisting early alarming apparatus of distributing transformer based on GSM technique |
| CN201726110U (en) * | 2010-04-23 | 2011-01-26 | 陈家斌 | Distribution-transformer induced frequency-discrimination open-phase wireless alarm |
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