CN104569628A - Remote alarm device for high voltage phase loss of distribution transformer - Google Patents
Remote alarm device for high voltage phase loss of distribution transformer Download PDFInfo
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- CN104569628A CN104569628A CN201410840742.5A CN201410840742A CN104569628A CN 104569628 A CN104569628 A CN 104569628A CN 201410840742 A CN201410840742 A CN 201410840742A CN 104569628 A CN104569628 A CN 104569628A
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Abstract
The invention discloses a remote alarm device for high voltage phase loss of a distribution transformer. The device comprises a signal waveform transformation circuit, a signal data computation and judgment circuit, a remote alarm circuit and a direct current power supply circuit, wherein the signal waveform circuit, the signal data computation and judgment circuit and the remote alarm circuit are connected in sequence; the remote alarm circuit is connected with a distribution network management center; the direct current power supply circuit is connected with the signal waveform transformation circuit, the signal data computation and judgment circuit and the remote alarm circuit; the input terminal of the signal waveform transformation circuit is connected with one terminal of a resistor; the other terminal of the resistor is connected with a power line; a shunt interface is arranged between the resistor and the signal waveform transformation circuit; the shunt interface is connected with a null line N through a resistor; the power line adopts an alternating current phase line. The device greatly shortens the time for looking for the distribution network branch line faults and the fusing of a distribution transformer high-voltage side fuse mounted on a line, reduces the labor intensity of employees, improves the power distribution reliability, and reduces the unnecessary loss.
Description
technical field:
The present invention relates to a kind of warning device, particularly relate to a kind of remote alarm device used in high voltage phase loss of distribution transformer.
background technology:
Intelligent grid construction is carried out in current electric system comprehensively, Based Intelligent Control, intelligent management, intellectual analysis are carried out to full electric network, carry out repair based on condition of component to grid equipment, the application of distribution intelligent control technology has only just started starting, because a variety of causes fails to be generalizable always comprehensively comprehensively, supplying power allocation intelligent control technology is studied, mainly for distribution line, the equipment such as transformer, loop-network switch cabinet carries out Based Intelligent Control, intelligent management, intellectual analysis, carries out repair based on condition of component.
The substation transformer high-pressure side insurance fuse failure that wire system phase shortage and this circuit are installed is propped up at present in the 10-35kV distribution run, owing to not monitoring in real time, substantially be out of order, there is power outage, notify that operator on duty searches maintenance by user, difficulty is searched in trouble spot, length consuming time, device damage rate is high, power supply reliability is low, therefore needs a kind of shortening trouble shooting time, reduces worker's labour intensity, improve power supply reliability, the technical development of electrical network intelligent management is played to the warning device of most important effect.
summary of the invention:
Technical matters to be solved by this invention is: overcome the deficiencies in the prior art, there is provided one can realize convenient operation personnel to search faulty line, shorten trouble shooting time, reduce worker's labour intensity, improve the remote alarm device used in high voltage phase loss of distribution transformer of power supply reliability.
Technical scheme of the present invention is: a kind of remote alarm device used in high voltage phase loss of distribution transformer, comprise signal waveform translation circuit, signal data calculates decision circuitry, distant place warning circuit, DC power supply circuit, described signal waveform translation circuit, signal data calculates decision circuitry, distant place warning circuit connects successively, described distant place warning circuit is connected with power distribution network administrative center, described DC power supply circuit and signal waveform translation circuit, signal data calculates decision circuitry, distant place warning circuit connects, described signal waveform translation circuit input end is connected with one end of resistance, the other end of described resistance is connected with power lead, interface is along separate routes provided with between described resistance and signal waveform translation circuit, described shunt interface is connected with zero line N by resistance, described shunt interface is three, described power lead is alternating current phase line, described alternating current phase line comprises L1, L2, L3, zero line N.
Described signal waveform translation circuit and signal data calculate decision circuitry and are integrated chip, described signal waveform translation circuit is provided with eight pins, described signal data calculates decision circuitry and is provided with seven pins, eight pins of signal waveform translation circuit are pin 1, pin 2, pin 3, pin 4, pin 5, pin 6, pin 7, pin 8, and seven pins that signal data calculates decision circuitry are pin 11, pin 12, pin 13, pin 14, pin 15, pin 16, pin 17.
Described resistance comprises R1, R2, R3, R4, R5, R6, described R1, R2, R3 are connected with pin 1, pin 2, pin 3 and L1, L2, L3 successively, described R4, R5, R6 are connected with shunt interface and zero line N respectively, described pin 4, pin 5, pin 6 are connected with pin 11, pin 12, pin 13 successively, described pin 14 and pin 15 and distant place warning circuit, described pin 7, pin 16 are connected with DC power supply circuit, described pin 8, pin 17 ground connection.
Described DC power supply circuit comprises rectification circuit Z1, rectification circuit Z2, diode D1, diode D2, two input ends of described rectification circuit Z1 are connected with L2 and zero line N successively, two output terminals of rectification circuit Z1 are connected with the positive pole of diode D1 and ground wire successively, two input ends of described rectification circuit Z2 are connected with L3 and zero line N successively, two output terminals of rectification circuit Z2 are connected with the positive pole of diode D2 and ground wire successively, described diode D1, the negative pole of diode D2 links together, and with signal waveform translation circuit, signal data calculates decision circuitry, distant place warning circuit connects.
Described distant place warning circuit comprises optical fiber communication circuit and radio communication circuit, described optical fiber communication circuit, comprise optical fibre communication cable, optical transmitter and receiver circuit, described optical transmitter and receiver circuit comprises optical transmission circuit and optical receiving circuit, described optical transmission circuit is connected by optical fibre communication cable with optical receiving circuit, described radio communication circuit comprises radio transmitter and wireless receiving circuit, described wireless receiving circuit is connected with power distribution network administrative center with optical receiving circuit, described radio transmitter and optical transmission circuit and signal data calculate decision circuitry, DC power supply circuit, ground wire connects, described radio transmitter is connected with mobile handheld terminal.
The invention has the beneficial effects as follows:
1, the present invention greatly shortens the substation transformer high-pressure side insurance fuse failure that distribution fault of branch line and circuit are installed and searches the time, reduces worker labour intensity, improves power supply reliability, reduce the loss that do not have, increase delivery, raising enterprise and social benefit.
2, the present invention plays very big promotion to power distribution system equipment safety and economic operation, vital effect is played to the technical development of electrical network intelligent management, shortens trouble shooting time, reduce the fault outage time, adding users satisfaction, improves society of power supply enterprise credit worthiness.
3, signal waveform translation circuit of the present invention and signal data calculate decision circuitry and are integrated chip, decrease volume and the quality of equipment, add the stability of equipment, reduce equipment to the loss of electric energy, and handled easily personnel carry out maintenance to equipment and install.
4, the present invention is provided with two kinds of communication modes, and what ensure with the communication of power distribution network administrative center is unimpeded, and radio transmitter can be sent to the information detected on the mobile handheld terminal that operator carries, and convenient operation person operate.
5, the present invention takes two rectifier power source to be connected in two-phase alternating current phase line, and when having a phase line outage or a rectifier power source to have a fault, another phase or another rectifier power source are powered to device, guarantee that device reliably normally carries out.
accompanying drawing illustrates:
Fig. 1 is the connection diagram of remote alarm device used in high voltage phase loss of distribution transformer.
embodiment:
Embodiment: see Fig. 1.
Remote alarm device used in high voltage phase loss of distribution transformer: comprise signal waveform translation circuit, signal data calculates decision circuitry, distant place warning circuit, DC power supply circuit, signal waveform translation circuit, signal data calculates decision circuitry, distant place warning circuit connects successively, distant place warning circuit is connected with power distribution network administrative center, DC power supply circuit and signal waveform translation circuit, signal data calculates decision circuitry, distant place warning circuit connects, signal waveform translation circuit input end is connected with one end of resistance, the other end of resistance is connected with power lead, interface is along separate routes provided with between resistance and signal waveform translation circuit, interface is connected with zero line N by resistance along separate routes, interface is three along separate routes, power lead is alternating current phase line, alternating current phase line comprises L1, L2, L3, zero line N.
Signal waveform translation circuit and signal data calculate decision circuitry and are integrated chip, signal waveform translation circuit is provided with eight pins, signal data calculates decision circuitry and is provided with seven pins, eight pins of signal waveform translation circuit are pin 1, pin 2, pin 3, pin 4, pin 5, pin 6, pin 7, pin 8, and seven pins that signal data calculates decision circuitry are pin 11, pin 12, pin 13, pin 14, pin 15, pin 16, pin 17.
Resistance comprises R1, R2, R3, R4, R5, R6, R1, R2, R3 are connected with pin 1, pin 2, pin 3 and L1, L2, L3 successively, R4, R5, R6 are connected with shunt interface and zero line N respectively, pin 4, pin 5, pin 6 are connected with pin 11, pin 12, pin 13 successively, pin 14 and pin 15 and distant place warning circuit, pin 7, pin 16 are connected with DC power supply circuit, pin 8, pin 17 ground connection.
DC power supply circuit comprises rectification circuit Z1, rectification circuit Z2, diode D1, diode D2, two input ends of rectification circuit Z1 are connected with L2 and zero line N successively, two output terminals of rectification circuit Z1 are connected with the positive pole of diode D1 and ground wire successively, two input ends of rectification circuit Z2 are connected with L3 and zero line N successively, two output terminals of rectification circuit Z2 are connected with the positive pole of diode D2 and ground wire successively, diode D1, the negative pole of diode D2 links together, and with signal waveform translation circuit, signal data calculates decision circuitry, distant place warning circuit connects.
Distant place warning circuit comprises optical fiber communication circuit and radio communication circuit, optical fiber communication circuit, comprise optical fibre communication cable, optical transmitter and receiver circuit, optical transmitter and receiver circuit comprises optical transmission circuit and optical receiving circuit, optical transmission circuit is connected by optical fibre communication cable with optical receiving circuit, radio communication circuit comprises radio transmitter and wireless receiving circuit, wireless receiving circuit is connected with power distribution network administrative center with optical receiving circuit, radio transmitter and optical transmission circuit and signal data calculate decision circuitry, DC power supply circuit, ground wire connects, radio transmitter is connected with mobile handheld terminal.
During use, three-phase voltage signal is gathered from the alternating current phase line connected, and signal waveform translation circuit is given in transmission, the three-phase voltage sine wave-shaped signal gathered during normal operation is symmetrical mutually and is 120 degree of angles, signal waveform translation circuit is transformed into square wave the signal received, after signal data calculating decision circuitry is given in square wave transmission, signal data calculates decision circuitry to carry out calculating to input square wave and judges whether mutually symmetrical and in 120 degree of angles, if degree angle is asymmetric, the substation transformer high-pressure side insurance fuse failure phase shortage that distribution branch line phase shortage or this circuit are installed is described, this signal is transmitted immediately and gives distant place warning circuit, distant place warning circuit carries out distant place warning Signal transmissions to power distribution network administrative center and mobile handheld terminal, operator on duty can see it being that circuit or that transformer high-voltage fuse failure phase shortage have a power failure at once, to send someone immediately handling failure.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (5)
1. a remote alarm device used in high voltage phase loss of distribution transformer, comprise signal waveform translation circuit, signal data calculates decision circuitry, distant place warning circuit, DC power supply circuit, it is characterized in that: described signal waveform translation circuit, signal data calculates decision circuitry, distant place warning circuit connects successively, described distant place warning circuit is connected with power distribution network administrative center, described DC power supply circuit and signal waveform translation circuit, signal data calculates decision circuitry, distant place warning circuit connects, described signal waveform translation circuit input end is connected with one end of resistance, the other end of described resistance is connected with power lead, interface is along separate routes provided with between described resistance and signal waveform translation circuit, described shunt interface is connected with zero line N by resistance, described shunt interface is three, described power lead is alternating current phase line, described alternating current phase line comprises L1, L2, L3, zero line N.
2. remote alarm device used in high voltage phase loss of distribution transformer according to claim 1, it is characterized in that: described signal waveform translation circuit and signal data calculate decision circuitry and be integrated chip, described signal waveform translation circuit is provided with eight pins, described signal data calculates decision circuitry and is provided with seven pins, eight pins of signal waveform translation circuit are pin 1, pin 2, pin 3, pin 4, pin 5, pin 6, pin 7, pin 8, seven pins that signal data calculates decision circuitry are pin 11, pin 12, pin 13, pin 14, pin 15, pin 16, pin 17.
3. remote alarm device used in high voltage phase loss of distribution transformer according to claim 2, it is characterized in that: described resistance comprises R1, R2, R3, R4, R5, R6, described R1, R2, R3 are connected with pin 1, pin 2, pin 3 and L1, L2, L3 successively, described R4, R5, R6 are connected with shunt interface and zero line N respectively, described pin 4, pin 5, pin 6 are connected with pin 11, pin 12, pin 13 successively, described pin 14 and pin 15 and distant place warning circuit, described pin 7, pin 16 are connected with DC power supply circuit, described pin 8, pin 17 ground connection.
4. remote alarm device used in high voltage phase loss of distribution transformer according to claim 1, it is characterized in that: described DC power supply circuit comprises rectification circuit Z1, rectification circuit Z2, diode D1, diode D2, two input ends of described rectification circuit Z1 are connected with L2 and zero line N successively, two output terminals of rectification circuit Z1 are connected with the positive pole of diode D1 and ground wire successively, two input ends of described rectification circuit Z2 are connected with L3 and zero line N successively, two output terminals of rectification circuit Z2 are connected with the positive pole of diode D2 and ground wire successively, described diode D1, the negative pole of diode D2 links together, and with signal waveform translation circuit, signal data calculates decision circuitry, distant place warning circuit connects.
5. remote alarm device used in high voltage phase loss of distribution transformer according to claim 1, it is characterized in that: described distant place warning circuit comprises optical fiber communication circuit and radio communication circuit, described optical fiber communication circuit, comprise optical fibre communication cable, optical transmitter and receiver circuit, described optical transmitter and receiver circuit comprises optical transmission circuit and optical receiving circuit, described optical transmission circuit is connected by optical fibre communication cable with optical receiving circuit, described radio communication circuit comprises radio transmitter and wireless receiving circuit, described wireless receiving circuit is connected with power distribution network administrative center with optical receiving circuit, described radio transmitter and optical transmission circuit and signal data calculate decision circuitry, DC power supply circuit, ground wire connects, described radio transmitter is connected with mobile handheld terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410840742.5A CN104569628A (en) | 2014-12-30 | 2014-12-30 | Remote alarm device for high voltage phase loss of distribution transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410840742.5A CN104569628A (en) | 2014-12-30 | 2014-12-30 | Remote alarm device for high voltage phase loss of distribution transformer |
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| Publication Number | Publication Date |
|---|---|
| CN104569628A true CN104569628A (en) | 2015-04-29 |
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| CN201410840742.5A Pending CN104569628A (en) | 2014-12-30 | 2014-12-30 | Remote alarm device for high voltage phase loss of distribution transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557772A (en) * | 2020-12-07 | 2021-03-26 | 天津津航计算技术研究所 | Small-size alternating current of single power keeps apart detection module |
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| CN202362394U (en) * | 2011-11-21 | 2012-08-01 | 湖北省电力公司鄂州供电公司 | Open-phase alarm device for distribution transformer |
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| CN202939229U (en) * | 2012-11-22 | 2013-05-15 | 天津市宝恒控制阀门有限公司 | Three-phase power supply phase sequence discrimination and phase loss detection circuit |
| CN103197158A (en) * | 2013-03-26 | 2013-07-10 | 深圳市英威腾电气股份有限公司 | Three-phase power grid phase loss detection method and circuit |
| CN203179221U (en) * | 2013-02-20 | 2013-09-04 | 河南省电力公司驻马店供电公司 | Transformer high/low voltage fuse burn-out remote alarm device |
| CN203772967U (en) * | 2014-03-26 | 2014-08-13 | 安徽安凯汽车股份有限公司 | Three-phase current and unbalanced or default phase detection circuit |
| CN204330897U (en) * | 2014-12-30 | 2015-05-13 | 国家电网公司 | High voltage phase loss of distribution transformer panalarm |
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2014
- 2014-12-30 CN CN201410840742.5A patent/CN104569628A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4027204A (en) * | 1976-01-28 | 1977-05-31 | Borg-Warner Corporation | Phase failure detection circuit for multi-phase systems |
| CN101247036A (en) * | 2007-02-15 | 2008-08-20 | 三星电子株式会社 | Three-phase power supply monitoring circuit |
| CN102213731A (en) * | 2010-04-06 | 2011-10-12 | 陈家斌 | Overcurrent phase-missing remote alarm for distribution transformer |
| CN102315686A (en) * | 2010-07-10 | 2012-01-11 | 陈家斌 | Remote alarm device used in high voltage phase loss of distribution transformer |
| CN102053203A (en) * | 2010-11-04 | 2011-05-11 | 武汉国测恒通智能仪器有限公司 | Detection method and device for high-voltage power quality |
| CN202362394U (en) * | 2011-11-21 | 2012-08-01 | 湖北省电力公司鄂州供电公司 | Open-phase alarm device for distribution transformer |
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| CN202939229U (en) * | 2012-11-22 | 2013-05-15 | 天津市宝恒控制阀门有限公司 | Three-phase power supply phase sequence discrimination and phase loss detection circuit |
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| CN103197158A (en) * | 2013-03-26 | 2013-07-10 | 深圳市英威腾电气股份有限公司 | Three-phase power grid phase loss detection method and circuit |
| CN203772967U (en) * | 2014-03-26 | 2014-08-13 | 安徽安凯汽车股份有限公司 | Three-phase current and unbalanced or default phase detection circuit |
| CN204330897U (en) * | 2014-12-30 | 2015-05-13 | 国家电网公司 | High voltage phase loss of distribution transformer panalarm |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557772A (en) * | 2020-12-07 | 2021-03-26 | 天津津航计算技术研究所 | Small-size alternating current of single power keeps apart detection module |
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Application publication date: 20150429 |