CN1188952A - Wireless automatic alarming device for 10KV over high voltage distribution line failure - Google Patents
Wireless automatic alarming device for 10KV over high voltage distribution line failure Download PDFInfo
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- CN1188952A CN1188952A CN97116361A CN97116361A CN1188952A CN 1188952 A CN1188952 A CN 1188952A CN 97116361 A CN97116361 A CN 97116361A CN 97116361 A CN97116361 A CN 97116361A CN 1188952 A CN1188952 A CN 1188952A
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Abstract
A wireless automatic alarm system for high-voltage (more than 10 KV) power transmission line failure is composed of outdoor wireless alarm unit and indoor wireless receiver. Said outdoor wireless alarm unit is composed of potential transformer, voltage changer, over-load releasing sectional switch, signal detector, modem, transceiver and emitting antenna. Said indoor wireless receiver is composed of receiving antenna, transceiver, voltage changer, modem, screen display, microcomputer, sound-light alarm and printer. It can report the failure position quickly and correctly.
Description
The invention belongs to a kind of warning device, relate to the above high voltage distribution line failure wireless automatic alarming device of a kind of 10KV.
The above high-tension distributing line of 10KV except that a small amount of cable underground laying, major part all is to set up in the open.Because equipment exposes in the Nature, various extraneous factors are bigger to the safe operation influence of distribution line, as when thunder, rain, wind, mist, the snow weather, always have some line facilities because of resisting these disasteies line fault to take place; For another example:, accidents such as automobile lance, construction short can take place in the open because circuit is to set up; In addition, when falling trees, pounding the line accident also is frequent generation.And in a single day circuit breaks down, and existing inspection means are not advanced, complete in manually searching along the line.Time several days will be searched for a trouble spot sometimes by line upkeep class.When searching accident, the outage of must operating a switch.Because it is unclear that the accident origination point is judged, the scope of the outage of operating a switch is wide, the time long, cause and have a strong impact on for industrial and agricultural production, resident living power utility, also can cause certain political fallout sometimes.
The objective of the invention is to design the above high voltage distribution line failure wireless automatic alarming device of a kind of 10KV, this device can observe and predict the fault location rapidly, brings great convenience for the maintenance and the maintenance of high-tension line.
For achieving the above object, the present invention takes the above high voltage distribution line failure wireless automatic alarming device of following design proposal: 10KV mainly to be made up of outdoor radio alarming device (substation) and indoor wireless receiving trap (main website) two parts.Outdoor radio alarming device comprises: the block switch of voltage transformer (VT), voltage changer, overlond trip, signal detector, modulator-demodular unit, transceiver handset and emitting antenna etc.; The indoor wireless receiving trap comprises: receiving antenna, transceiver main frame, voltage changer, modulator-demodular unit, screen display, microcomputer, audible-visual annunciator, printer etc.Wherein the primary side of the block switch of overlond trip connects the 10KV mains side, the secondary side of block switch connects 10KV power supply load side, CT output terminal in the block switch connects signal detector, the signal output part of detecting device be linked in sequence modulator-demodular unit and transceiver handset, the R/T end of transceiver handset connects emitting antenna; The receiving antenna of indoor wireless receiving trap connects the transceiver main frame, transceiver host output end be linked in sequence modulator-demodular unit, microcomputer, screen display, audible-visual annunciator, printer etc.
The present invention has the following advantages:
1, dwindles the fault outage scope.After on the distribution line branch line radio alarming device being installed, can be limited in fault in the subrange, have only the local line of faulty section to have a power failure, non-faulty section circuit is operation as usual, can reduce user's loss of outage (factory that has according to investigations has a power failure and will lose more than 100 ten thousand yuan of output values in) so greatly, improve the output and the output value, increase economic benefit.
2, shortening the circuit operations staff searches and the handling failure time.After the line work personnel received the line fault warning, the faulty section of can directly driving went to handle, and accurately and timely restores electricity, and saves human and material resources, improves work efficiency.Avoid line fault large-area power-cuts completely in the past, large quantities of personnel set out to search the shortcoming that fault wastes time and energy, and (line outage was searched in the past, surpassing 12 hours is frequent thing, and ordinary accident can be handled in two hours behind the realization fault alarm, and work efficiency can improve 6-10 doubly).
3, improve operation of power networks stability.After on the branch line block switch and radio alarming device of overlond trip being installed, being equivalent to has increased first class of protection on the 10KV circuit.After the tripping of faulty section switch, transformer substation switch no longer moves, and can prevent from like this that the 10KV accident from bypassing the immediate leadership to cause the possibility of large-area power-cuts.
In a word after accident warning device is installed on the 10KV distribution branch line, number when reducing the power failure family, improving power supply reliability has bigger effect.
Fig. 1 is the composition block scheme of outdoor radio alarming device among the present invention
Fig. 2 is outdoor radio alarming Unit Installation synoptic diagram among the present invention
Fig. 3 is the electrical schematic diagram of testing circuit in the outdoor radio alarming device among the present invention
Fig. 4 is the composition block scheme of indoor wireless receiving trap among the present invention
The invention will be further described below in conjunction with accompanying drawing.
The high voltage distribution line failure wireless automatic alarming device mainly is made up of outdoor radio alarming device (substation) and indoor wireless receiving trap (main website) two parts.Wherein outdoor radio alarming device comprises block switch, signal detector, modulator-demodular unit, the transceiver handset of voltage transformer (VT), voltage changer, overlond trip and launches wireless etc.; The indoor wireless receiving trap then comprises receiving antenna, transceiver main frame, voltage changer, modulator-demodular unit, screen display, microcomputer, audible-visual annunciator, printer etc.
As shown in Figure 1, the voltage transformer (VT) 1 of outdoor radio alarming device (substation) adopts the V/V mode of connection, and its primary side connects the high-tension electricity source, and secondary side connects the primary side of voltage changer 2.The secondary side of voltage changer 2 connects modulator-demodular unit 4 and transceiver handset 5 respectively by commutation diode 3.Described voltage transformer (VT) 1 can be used as the power supply of voltage changer 2, and voltage changer 2 is alternating current 220V/direct current 5V, can be used as the working power of modulator-demodular unit 4 and transceiver handset 5 for exchanging 10KV/220V.Also be connected with the primary side of block switch 6 at the high-tension electricity source, the high-voltage power supply load side connects the secondary side of block switch 6, the CT output terminal of block switch 6 connects signal detector 7, the signal output part of detecting device 7 connects modulator-demodular unit 4, the output terminal of modulator-demodular unit 4 connects transceiver handset 5, and the R/T output terminal of transceiver handset 5 connects emitting antenna 8.
As shown in Figure 2, on the electric pole 9 of described ultra-high-tension power transmission line, fixedly be equipped with upper and lower bracing frame 10, the warning device 11 of fixedly laying block switch 6, voltage transformer (VT) 1, antenna 8 on it respectively and being formed by signal detector 7, modulator-demodular unit 4, transceiver handset 5.
As shown in Figure 3, the CT output terminal of block switch 6 connects signal deteching circuit.Described signal deteching circuit is made up of stabilivolt, schmitt inverter, monostalbe trigger, the A/D conversion utmost point, CPU and resistance, potentiometer, electric capacity etc.Signal deteching circuit can detect the ruuning situation of high-tension line, and signal is transferred to the transceiver handset.After described CT output terminal passes through stabilivolt 12, electric capacity 13, potentiometer 14 filtering and voltage stabilizing, connect schmitt inverter (74LS14) 15, its output terminal connects monostalbe trigger (74LS123) 16, and this output connects A/D converter 17, thereby voltage analog is converted into digital quantity.The output terminal of A/D plate 17 connects CPU18, the data of A/D converter input can be carried out incoming modem 4 and transceiver handset 5 after the conversion process.
Indoor wireless receiving trap (main website) as shown in Figure 4.Wherein receiving antenna 19 connects transceiver main frame 20, and the output terminal of transceiver main frame 20 is connected in series modulator-demodular unit 21, microcomputer 22, microcomputer 23 in proper order.As shown in Figure 4, voltage changer 24 connects transceiver main frame 20 and modulator-demodular unit 21 respectively after the 220V electric main is transformed to direct current, to supply with operating voltage.Microcomputer 22 connects display screen 26 by data bus, and connects audible-visual annunciator 25 by Serial Port Line; Microcomputer 23 connects display screen 27 by data bus, and connects printer 28 by Serial Port Line; Then interconnect between two microcomputers by concentric cable.
Principle of work:
The above high voltage distribution line failure wireless automatic alarming device of 10KV is block switch 6 and the radio alarming device 11 that overlond trip is installed on the high-tension line branch line; And at the radio receiver of duty room mounting strap sound, light, screen display.When the high-tension line branch line breaks down, block switch 6 can be because of overload machinery thread off (its working value can be selected by the size of branch line short-circuit current).After short-circuit current surpasses the definite value breaking, in block switch, the CT that installs on the load side porcelain bushing shell (current transformer) is with power-off signal input signal detecting device, input transceiver handset 5 is sent alerting signal after signal detector carries out data-switching and handles, and is wirelessly transmitted to by micro-processor controlled receiving trap.The high-tension electricity source then by the voltage transformer (VT) of the V/V mode of connection, is converted to alternating current 220V with the 10KV high pressure, and then through superpotential interchanger 2 alternating current 220V is become direct current 5V, becomes the power supply of handset.Microcomputer 22 in the receiving trap identifies faulty line through conversion of signals and digital coding, and notify the switch that the operator on duty breaks down and title, place, the time of faulty line with sound, light, screen display mode, simultaneously these data are deposited in the database.Microcomputer 23 is judged and the microcomputer 23 interior identical data of wiring diagram by program by the database on access to netwoks microcomputer 22 hard disks, and is shown by display 27; Give an order (PRINT order) for printer 28 by Serial Port Line simultaneously, print the signalling trouble book automatically by printer 28 and hand over field personnel repairing personnel to rush towards site disposal.
In the device of the present invention, the function of major equipment is described below.
Wiring diagram: 10KV and above wiring diagram are to integrate GPS (satellite automatic station-keeping system) and GIB (Geographic Information System) in the microcomputer 23, through the scene mapping and by floppy disk related data are examined somewhere 10KV and the above high-tension line device distribution figure that shellfish goes into machine.After warning device sends fault-signal, by computer control, the faulty section circuit is presented on the screen accurately, is convenient to commanding and the clear and definite place where the accident occurred of repairing personnel, elimination accident is in time recovered normal power supply.
Transceiver handset 5: send the substation fault detection signal, receive main website and patrol and examine signal, can keep emissive power 25W, sensitivity 0.25 μ v after the outage 2 minutes.
Transceiver main frame 20: can receive arbitrary substation signal, send for arbitrary substation and patrol and examine signal, check whether operate as normal of substation equipment.
Microcomputer 22: switch number, the position of fault and the time of accurate failure judgement circuit, and provide sound and light alarm, screen display signal also has data management function simultaneously.
Microcomputer 23:,, select the back within 5 seconds, to give screen 27 signals through inquiry with switch number and the following circuit that microcomputer 22 transmits.Give printer 28 print signals by serial port simultaneously.
Screen display 26: show the faulty line switch number, faulty section place name (or bar number) and time of failure.
Screen display 27: show faulty section switch and following distribution line.
Sound and light alarm 25: fault has taken place with the tinkle of bells and blinking light caution person on duty circuit.
Printer 28: print circuit signalling trouble list, monthly, annual report form.
Claims (7)
1, the above high voltage distribution line failure wireless automatic alarming device of 10KV, mainly be made up of outdoor radio alarming device and indoor wireless receiving trap two parts, it is characterized in that: outdoor radio alarming device comprises: the block switch (6) of voltage transformer (VT) (1), voltage changer (2), overlond trip, signal detector (7), modulator-demodular unit (4), transceiver handset (5) and emitting antenna (8) etc.; The indoor wireless receiving trap comprises: receiving antenna (19), transceiver main frame (20), voltage changer (24), modulator-demodular unit (21), screen display (26,27), microcomputer (22,23), audible-visual annunciator (25), printer (28) etc., wherein the primary side of the block switch of overlond trip (6) connects the 10KV mains side, the secondary side of block switch (6) connects 10KV power supply load side, CT output terminal in the block switch connects signal detector (7), the signal output part of detecting device (7) be linked in sequence modulator-demodular unit (4) and transceiver handset (5), the R/T end of transceiver handset (5) connects emitting antenna (8); The receiving antenna of indoor wireless receiving trap (19) connects transceiver main frame (20), transceiver main frame (20) output terminal be linked in sequence modulator-demodular unit (21), microcomputer (22,23), screen display (26,27), audible-visual annunciator (25), printer (28) etc.
2, the above high voltage distribution line failure wireless automatic alarming device of 10KV according to claim 1, it is characterized in that: described high-tension electricity source is connected with voltage transformer (VT) (1) by the V/V mode of connection, the 10KV high pressure is converted on the circuit of alternating current 220V and is connected with voltage changer (2).
3, the above high voltage distribution line failure wireless automatic alarming device of 10KV according to claim 1 is characterized in that: in the described block switch (6), the CT output of installing on the load side porcelain bushing shell connects signal detector (7).
4, the above high voltage distribution line failure wireless automatic alarming device of 10KV according to claim 1, it is characterized in that: in the signal detector, after the CT output terminal of block switch (6) passes through stabilivolt (12), electric capacity (13), potentiometer (14) filtering and voltage stabilizing, connect schmitt inverter (15), its output terminal connects monostalbe trigger (16), this output connects A/D converter (17), and the output terminal of A/D (17) connects CPU (18).
5, the above high voltage distribution line failure wireless automatic alarming device of 10KV according to claim 1, it is characterized in that: on the electric pole of described ultra-high-tension power transmission line (9), fixedly be equipped with upper and lower bracing frame (10), the warning device (11) of fixedly laying block switch (6), voltage transformer (VT) (1), antenna (8) on it respectively and being formed by signal detector (7), modulator-demodular unit (4), transceiver handset (5).
6, the above high voltage distribution line failure wireless automatic alarming device of 10KV according to claim 1, it is characterized in that: in the described indoor wireless receiving trap, receiving antenna (19) connects transceiver main frame (20), the output terminal of transceiver main frame (20) is connected in series modulator-demodular unit (21), microcomputer (22), microcomputer (23) in proper order, microcomputer (22) connects display screen (26) by data bus, and connects audible-visual annunciator (25) by Serial Port Line; Microcomputer (23) connects display screen (27) by data bus, connects printer (28) by Serial Port Line; Two microcomputers then interconnect by concentric cable between (22,23).
7, the above high voltage distribution line failure wireless automatic alarming device of 10KV according to claim 1 is characterized in that: the secondary side of described voltage changer (24) connects transceiver main frame (20) and modulator-demodular unit (21) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97116361 CN1109324C (en) | 1997-08-18 | 1997-08-18 | Wireless automatic alarming device for 10KV over high voltage distribution line failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97116361 CN1109324C (en) | 1997-08-18 | 1997-08-18 | Wireless automatic alarming device for 10KV over high voltage distribution line failure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1188952A true CN1188952A (en) | 1998-07-29 |
| CN1109324C CN1109324C (en) | 2003-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97116361 Expired - Fee Related CN1109324C (en) | 1997-08-18 | 1997-08-18 | Wireless automatic alarming device for 10KV over high voltage distribution line failure |
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| Country | Link |
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| CN (1) | CN1109324C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1707277B (en) * | 2004-06-09 | 2010-09-29 | 上海久隆电力科技有限公司 | Distribution line fault monitoring system |
| CN102142714A (en) * | 2010-02-03 | 2011-08-03 | 陈家斌 | Intelligent control device of high-voltage drop-type fuse |
| CN102279344A (en) * | 2010-06-11 | 2011-12-14 | 李景禄 | Intelligent state sensor for distribution line |
| CN103311018A (en) * | 2013-05-30 | 2013-09-18 | 孟津县电业公司 | Closing and tripping remote display method and device for 10KV pole-mounted circuit breaker |
| CN110705801A (en) * | 2019-10-10 | 2020-01-17 | 国网山东省电力公司泰安供电公司 | Power grid accident economic loss estimation method and system based on fault loss electric quantity |
-
1997
- 1997-08-18 CN CN 97116361 patent/CN1109324C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1707277B (en) * | 2004-06-09 | 2010-09-29 | 上海久隆电力科技有限公司 | Distribution line fault monitoring system |
| CN102142714A (en) * | 2010-02-03 | 2011-08-03 | 陈家斌 | Intelligent control device of high-voltage drop-type fuse |
| CN102279344A (en) * | 2010-06-11 | 2011-12-14 | 李景禄 | Intelligent state sensor for distribution line |
| CN103311018A (en) * | 2013-05-30 | 2013-09-18 | 孟津县电业公司 | Closing and tripping remote display method and device for 10KV pole-mounted circuit breaker |
| CN110705801A (en) * | 2019-10-10 | 2020-01-17 | 国网山东省电力公司泰安供电公司 | Power grid accident economic loss estimation method and system based on fault loss electric quantity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1109324C (en) | 2003-05-21 |
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