CN202255288U - Laser detection display capable of judging actual position of power breaker - Google Patents
Laser detection display capable of judging actual position of power breaker Download PDFInfo
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- CN202255288U CN202255288U CN2011203861517U CN201120386151U CN202255288U CN 202255288 U CN202255288 U CN 202255288U CN 2011203861517 U CN2011203861517 U CN 2011203861517U CN 201120386151 U CN201120386151 U CN 201120386151U CN 202255288 U CN202255288 U CN 202255288U
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Abstract
The utility model discloses a laser detection display capable of judging an actual position of a power breaker. The laser detection display comprises a laser emission circuit and a photosensitive receiving circuit, wherein the laser emission circuit mainly comprises a 2-hertz frequency oscillator and a plurality of laser tubes; the number of photosensitive tubes in the photosensitive receiving circuit is the same as that of the plurality of laser tubes in the laser emission circuit; each photosensitive tube is sequentially connected in series with a light emitting diode and a resistor, and then is connected to a direct-current power supply loop; the plurality of laser tubes and the plurality of photosensitive tubes are arranged on the left side and the right side of a moving trace of a movable contact insulation porcelain bottle of the power breaker respectively at equal intervals; and the distance between two adjacent laser tubes and the distance between two adjacent photosensitive tubes are shorter than the diameter of the movable contact insulation porcelain bottle of the power breaker. The laser detection display can effectively judging the actual position of the operated breaker and displaying the actual position on a cabinet face; therefore, error operation accidents, such as connection with a ground switch blade, switch blade closing with power and the like, are avoided; and the running safety of power equipment is improved.
Description
Technical field
The utility model relates to the laser acquisition display of the actual closing position of disconnecting link switch in power switch the closing position detecting devices, particularly high-tension switch cabinet.
Background technology
High-voltage board be electric power transfer visual plant, safety be matter of utmost importance, although repeat injunctions, the alarm sounds continuously, the maloperation situation still happens occasionally.In recent years the band ground cutter in Tianjin and the appearance of Sichuan Meishan closes a floodgate and the charged ground cutter that closes, and is exactly extremely serious serious accident.
Look into the causes---mechanical fault, separating brake is not in place, but also wrong indication, and carry out the charged faulty operation such as ground cutter of closing and cause.
Existing is row with Meishan Zhenjiang, Sichuan substation accident, does the concrete condition introduction.
Accident summary: 9: 53 on the 12nd March; After Meishan Zhenjiang, Sichuan substation operation personnel transfer order " drawing back capacitor 9611 disconnecting links No. 1 " by Meishan ground; Inspection switch operation handle and disconnecting link opening and closing lock are indicated all in the separating brake position, but conscientiously do not check the disconnecting link contact position.10: 06, ground was transferred and telephone order, and 10kV1 capacitor 961 switches are doed for supplement safety practice.10: 22; The personnel on duty of Zhenjiang transformer station are when doing " capacitor 96110 ground connection disconnecting links close No. 1 "; Discovery has the bite phenomenon and reports to responsible official on duty; Responsible official on duty does not conscientiously examine 9611 disconnecting link physical locations to the scene yet, just agrees to continue operation, causes the three-phase ground short circuit.Simultaneously; Cause 10kV1 capacitor 961 switch rear cabinet doors to flick and touch # II main transformer 10kV side A phase bus bridge; # II main transformer differential protection action, 202 switches, 102 switches, 902 switch trips, 110kV II mother, 10kV II section bus loss of pressure and 961 switches, 961 disconnecting links and rear cabinet door damage; CT insulation damages in the cabinet, 961 umbilical cable damages at interval.
Analysis on accident cause:
1,10KV capacitor switch cabinet 9611 disconnecting link transmission shaft flexural deformations, 9611 disconnecting link separating brakes do not put in place, and operation interlocking mechanism is locking ground connection disconnecting link normally, causes the charged 96110# of closing ground connection disconnecting link, is the immediate cause that causes this accident to take place.
2, operations staff on duty violates grid switching operation regulation, does not conscientiously check the physical location behind 9611 switch operations, only judges the disconnecting link position with a deciliter indication, is the main cause that causes this accident.
3,961 switch cubicles put into operation in 2007, existed charged display device that potential safety hazards such as unreasonable are set.It is the potential cause that causes this accident.
Above accident investigation analysis; For we have made important hints---machinery all might be made mistakes with indicating in structure; Operating personnel are because of can only observe the disconnecting link position narrow through viewport, at a distance, and awkward really difficulty has again increased the weight of to ignore the cause-effect relationship of observing.
This type of problem, not only Meishan has, in other generating plant, transformer station also in various degree existence.Like Neijiang Electric Power Bureau two situation not in place of closing a floodgate just having taken place this year, through check and analysis, also is because connecting lever is loosening; Lack strength, ferrule is not pushed in the draw-in groove of static contact, like this; Contact resistance increases, and temperature sharply raises, and causes phenomenon of the failure generations such as three-phase imbalance simultaneously.
Through the record analysis of these faults, to us a serious problem-can find better way to come high-voltage board is kept watch on has been proposed, improve automatization level, reduce the generation of operation and work accident.
Through analyze considering that electric monitoring means is adopted in decision, can judge the physical location behind the switch operation on the one hand automatically, remedy physical construction only with peripheral operation, no matter inner implementation status and provide put in place the deficiency of signal of disconnecting link; On the other hand measurement result is guided on the cabinet face and shown the difficulty that solution operator partition window is faced each other.
The utility model content
The purpose of the utility model provides a kind of laser acquisition display of judging electric power disconnecting link physical location, through electric monitoring means to prevent the generation of high-voltage board misoperation fault.
The purpose of the utility model is achieved in that a kind of laser acquisition display of judging electric power disconnecting link physical location, comprises,
Laser transmission circuit: mainly form by 2 hertz frequency oscillators and a plurality of laser tube;
Photosensitive receiving circuit: the number of photosensitive tube is identical with the number of a plurality of laser tubes in the laser transmission circuit, and each photosensitive tube is connected in the direct current power supply loop after being connected in series a light emitting diode and a resistance in order;
Said a plurality of laser tube and a plurality of photosensitive tube are arranged on the and arranged on left and right sides of the moving contact porcelain insulator movement locus of electric power disconnecting link respectively equally spacedly, and the spacing of adjacent two laser tubes and adjacent two photosensitive tubes is not more than the diameter of the moving contact porcelain insulator of electric power disconnecting link.
Above-mentioned laser transmission circuit structure is: be serially connected with K switch 1 and insurance BX1 in the loop of the elementary winding access of transformer B1 220V alternating current; Transformer B1 secondary winding two ends are connected to two input ends of rectifier D1-4 respectively; Be serially connected with capacitor C 1 between the positive and negative output terminal of rectifier D1-4; The positive output end of rectifier D1-4 is connected to the input end of three terminal integrated voltage stabilizer IC1, and the positive output end of IC1 is connected to 14 pin of six non-gate ic IC2, and 7 pin of the negative output terminal of IC1 and IC2 all are connected to the negative output terminal of rectifier D1-4; Be serially connected with capacitor C 2, resistance R 2 and potentiometer W1 between 4 pin of IC2 and 6 pin in order; The centre tap of potentiometer W1 is connected to 6 pin of IC2, is connected to the base stage of compound transistor BG1-2 behind the 8 pin series resistor R3 of IC2, is connected to the positive output end of IC1 behind the collector series relay J1 of BG1-2; The emitter of BG1-2 is connected to the negative output terminal of rectifier D1-4; The positive output end of IC1 is connected in series the negative output terminal that meets rectifier D1-4 after potentiometer W2 and the resistance R 5 in order, is connected to the positive pole of four laser tube Jg1-4 behind the normal opened contact J1-1 of the centre tap serial connection relay J 1 of potentiometer W2, and the negative pole of four laser tube Jg1-4 is connected to the negative output terminal of IC1 respectively behind series resistor R6, R7, R8 and the R9; The positive pole of voltage stabilizing diode D5 is connected to the centre tap of potentiometer W2, and the negative pole of D5 is connected to the negative output terminal of IC1; Four photosensitive tube Gm1-4 and corresponding four light emitting diode Fg3-6 and four resistance R 11-R14 are arranged in the said photosensitive receiving circuit, and four photosensitive tube Gm1-4 insert in the direct current power supply loop after being connected in series light emitting diode Fg3-6 and resistance R 11-R14 respectively in order.
Also have power indicating circuit in the above-mentioned laser transmission circuit: light emitting diode Fg1 and resistance R 1 are serially connected between the positive and negative output terminal of rectifier D1-4 in order.
Above-mentioned transformer B1 secondary winding voltage is 7.5V; Said laser tube model is JG2B, and said photosensitive tube model is 3DU7, and three terminal integrated voltage stabilizer IC1 model is WY7806, and six non-gate ic IC2 models are 74LS04, and the relay J model is JRC-21.
Also have interconnective accessory power outlet CZ1 and input socket CZ2, CZ1 anode and earth terminal are connected to potentiometer W2 centre tap and rectifier D1-4 negative output terminal respectively; Four photosensitive tube Gm1-4 and corresponding four light emitting diode Fg3-6 and four resistance R 11-14 are arranged in the said photosensitive receiving circuit, and the CZ2 anode is connected to the CZ2 earth terminal after being connected in series a photosensitive tube and a corresponding light emitting diode and a resistance in order.
Also have the direct supply indicating circuit in the above-mentioned photosensitive receiving circuit: light emitting diode Fg2 and resistance R 10 are serially connected between the input socket CZ2 two ends.
Also have mutual corresponding 8 stitch accessory power outlet CZ3 and the 8 stitch input socket CZ4 that connect; 4,5,6,7 pin of CZ3 are connected to the node of photosensitive tube Gm1-4 and light emitting diode Fg3-6 respectively, and 8 pin of CZ3 are connected to input socket CZ2 earth terminal, and 2,3 pin of CZ3 are connected to the two ends of K switch 1 respectively; Also have cabinet face display circuit: 4,5,6,7 pin of 8 stitch input socket CZ4 are connected in series the 8 pin earth terminals that are connected to CZ4 behind light emitting diode Fg8-11 and the resistance R 16-R19 respectively in order.
Test lamp bank SY1 in addition in the above-mentioned photosensitive receiving circuit; Test lamp bank SY1 is connected between the anode of 1 pin and input socket CZ2 of 8 stitch accessory power outlet CZ3; Also have K switch 2, K switch 3, light emitting diode Fg7 and resistance R 15 in the said cabinet face display circuit: K switch 2 is connected between 2 pin and 3 pin parallelly connected with 220V power switch K1 among the 8 stitch input socket CZ4; K switch 3 is connected between 1 pin and 8 pin of CZ4, and 1 pin of CZ4 connects the 8 pin earth terminals that are connected to CZ4 after light emitting diode Fg7 and the resistance R 15 in order.
The beneficial effect of the utility model is: to the indication of mechanical fault, panel mistake and personnel lack that the band ground cutter of observing and causing closes a floodgate or charged close serious accidents such as cutter; Developed the grid switching operation monitor that this Laser emission, photosensitive reception and cabinet face display module constitute; Can judge effectively disconnecting link operated the back residing physical location; Successfully solved the problem that causes above-mentioned fault, with the appearance once again that prevents misoperation fault effectively, simultaneously to maintenance and unattended situation; Done the reasonable setting of control device; Prerun arbitration functions and serviceable life are all greatly strengthened, so instrument is advanced more perfect, are practicality, safety, the protective instruments that quite is worthy to be popularized.
Characteristics of the utility model and advantage will combine embodiment specifically to set forth.
Description of drawings
Fig. 1 is the 10kV of a Zhenjiang transformer station main wiring diagram.
Fig. 2 is the hardware block diagram of the utility model.
Fig. 3-1, Fig. 3-2 and Fig. 3-3 are respectively the laser transmission circuit figure of this equipment, photosensitive receiving circuit figure and cabinet face display circuit figure.
Fig. 4 is laser tube (emission) and the scheme of installation of photosensitive tube (reception) on the cabinet wall of three-phase disconnecting link both sides.
Fig. 5 is that high-voltage board cabinet face shows synoptic diagram.
Embodiment
Visible from Fig. 2, this instrument is public down at power supply, also is divided into Laser emission, photosensitive reception and cabinet face and shows three bulks.
First bulk comprises frequency oscillator, flashes controller and generating laser, has promptly formed and has flashed the emitted laser source.
Second bulk comprises photoreceiver, regulates converter, and this part is accomplished the laser penetration reception and shown regulatory function.
The third-largest is mainly cabinet face display, and its signal after with Laser emission, reception, arrangement shows, and informs the physical location of the current disconnecting link of operations staff, and judging thus has non-fault to exist.
The third-largest also has and uses and test control function, can select the instrument running status.
Fig. 3-1 illustrates; The laser transmission circuit structure is: be serially connected with K switch 1 and insurance BX1 in the loop of the elementary winding access of transformer B1 220V alternating current; Transformer B1 secondary winding two ends are connected to two input ends of rectifier D1-4 respectively; Be serially connected with capacitor C 1 between the positive and negative output terminal of rectifier D1-4; The positive output end of rectifier D1-4 is connected to the input end of three terminal integrated voltage stabilizer IC1, and the positive output end of IC1 is connected to 14 pin of six non-gate ic IC2, and 7 pin of the negative output terminal of IC1 and IC2 all are connected to the negative output terminal of rectifier D1-4; Be serially connected with capacitor C 2, resistance R 2 and potentiometer W1 between 4 pin of IC2 and 6 pin in order; The centre tap of potentiometer W1 is connected to 6 pin of IC2, is connected to the base stage of compound transistor BG1-2 behind the 8 pin series resistor R3 of IC2, is connected to the positive output end of IC1 behind the collector series relay J1 of BG1-2; The emitter of BG1-2 is connected to the negative output terminal of rectifier D1-4; The positive output end of IC1 is connected in series the negative output terminal that meets rectifier D1-4 after potentiometer W2 and the resistance R 5 in order, is connected to the positive pole of four laser tube Jg1-4 behind the normal opened contact J1-1 of the centre tap serial connection relay J 1 of potentiometer W2, and the negative pole of four laser tube Jg1-4 is connected to the negative output terminal of IC1 respectively behind series resistor R6, R7, R8 and the R9; The positive pole of voltage stabilizing diode D5 is connected to the centre tap of potentiometer W2, and the negative pole of D5 is connected to the negative output terminal of IC1; Four photosensitive tube Gm1-4 and corresponding four light emitting diode Fg3-6 and four resistance R 11-R14 are arranged in the photosensitive receiving circuit, and four photosensitive tube Gm1-4 insert in the direct current power supply loop after being connected in series light emitting diode Fg3-6 and resistance R 11-R14 respectively in order.Also have power indicating circuit in the laser transmission circuit: light emitting diode Fg1 and resistance R 1 are serially connected between the positive and negative output terminal of rectifier D1-4 in order.Fig. 3-1 illustrates laser transmission circuit.The 220V alternating current is through K switch 1, insurance BX1 and transformer B1 step-down, and the transformer secondary voltage is through the bridge circuit rectification of rectifier D1-4 formation, light emitting diode Fg1 and resistance R 1 dividing potential drop; Do the power supply indication; Capacitor C 1 filtering, three terminal integrated voltage stabilizer IC1 voltage stabilizing, the RC circular type shaker of warp six non-gate ic IC2 and capacitor C 2, resistance R 2, potentiometer W1 formation again; Export 2 hertz frequencies; This frequency sends compound transistor BG1-2 to through resistance R 3, and the conducting of BG1-2 ends, and makes relay J 1 accomplish synchronous operation.
Potentiometer W2 centre tap is regulated dividing potential drop to the 5V power supply of voltage stabilizer IC1 output, and through voltage stabilizing diode D5 voltage is stabilized in 3V again, to adapt to the working range of Jg1-4 laser tube.R5 prevents that potentiometer from regulating to become zero resistance to the end, produces the positive-negative power short circuit and the protective resistance that is provided with, and R6-R9 resistance is that the power of LASER Light Source in each branch road (4 branch road) is done individual fine tuning.
When power supply meets the requirements, laser tube startup work under the break-make control of relay normally open node J1-1, is launched and is flashed laser beam again.
Ask for an interview Fig. 3-1 and Fig. 3-2; After AC-DC conversion; Acting in conjunction through potentiometer W2 and voltage stabilizing diode D5; Connect 3V voltage by accessory power outlet CZ1 and input socket CZ2, also have interconnective accessory power outlet CZ1 and input socket CZ2, CZ1 anode and earth terminal are connected to potentiometer W2 centre tap and rectifier D1-4 negative output terminal respectively; The CZ2 anode is connected to the CZ2 earth terminal after being connected in series photosensitive tube Gm1, light emitting diode Fg3 and resistance R 11 in order, and the light emitting diode Fg4-6 of photosensitive tube Gm2-4 and series connection respectively is identical to be connected work.
Fig. 3-2 illustrates, photosensitive receiving circuit: the number of photosensitive tube is identical with the number of a plurality of laser tubes in the laser transmission circuit, and each photosensitive tube is connected in the direct current power supply loop after being connected in series a light emitting diode and a resistance in order;
A plurality of laser tubes and a plurality of photosensitive tube are arranged on the and arranged on left and right sides of the moving contact 2 porcelain insulator movement locus of disconnecting link switch respectively equally spacedly, and the spacing of adjacent two laser tubes and adjacent two photosensitive tubes is not more than the diameter of moving contact 2 porcelain insulators of disconnecting link switch.Also have the direct supply indicating circuit in the photosensitive receiving circuit: light emitting diode Fg2 and resistance R 10 are serially connected between the input socket CZ2 two ends.
Photosensitive tube Gm1-4 is corresponding one by one with laser tube Jg1-4 respectively, makes it light beam that laser tube sends when nothing is blocked, and can accurately be radiated on the corresponding photosensitive tube.Photosensitive tube resistance value under available light reaches tens kilo-ohms, resembles the switch dialysis, so each luminotron can not worked; But when receiving stronger laser beam, resistance value will drop to tens even several ohm, just as switch connection, the luminotron of each series connection lighted.
More than, the bright of light emitting diode Fg3-6 put out for having played the monitoring effect in the disconnecting link position, because of which position disconnecting link moves in; With blocking passing through of this section laser beam; Thus, pairing photosensitive tube can not get laser radiation and will cut out, and can extinguish so be connected on the luminotron of same branch road.And each photosensitive tube bright with put out, just in time give grid switching operation whether put in place make monitoring, the judgement.Concrete judgment model also can describe in detail in follow-up method of application.
Be provided with the test lamp bank SY1 that row's high light type light emitting diode is formed among Fig. 3-2 in addition, it is not have or during full laser radiation, plays that each luminous branch road debug and verification uses.
Also be provided with 8 stitch accessory power outlet CZ3 among Fig. 3-2, according to follow-up plate operating circuit and the needs that control, we pool together alternating current 220V power supply, test lamp bank SY1, luminous parallel path and ground wire, see off through 1-8 stitch sockets and corresponding cable.
Cabinet face display circuit:
Fig. 3-2 and Fig. 3-3 illustrates, and also has mutual corresponding 8 stitch accessory power outlet CZ3 and the 8 stitch input socket CZ4 that connect; 4,5,6,7 pin of CZ3 are connected to the node of photosensitive tube Gm1-4 and light emitting diode Fg3-6 respectively, and 8 pin of CZ3 are connected to input socket CZ2 earth terminal, and 2,3 pin of CZ3 are connected to the two ends of 220V power switch K1 respectively; Also have cabinet face display circuit: 4,5,6,7 pin of 8 stitch input socket CZ4 are connected in series the 8 pin earth terminals that are connected to CZ4 behind light emitting diode Fg8-11 and the resistance R 16-R19 respectively in order.Test lamp bank SY1 in the photosensitive receiving circuit in addition; Test lamp bank SY1 is connected between the anode of 1 pin and input socket CZ2 of 8 stitch accessory power outlet CZ3; Also have K switch 2, K switch 3, light emitting diode Fg7 and resistance R 15 in the said cabinet face display circuit: K switch 2 is connected between 2 pin and 3 pin parallelly connected with 220V power switch K1 among the 8 stitch input socket CZ4; K switch 3 is connected between 1 pin and 8 pin of CZ4, and 1 pin of CZ4 connects the 8 pin earth terminals that are connected to CZ4 after light emitting diode Fg7 and the resistance R 15 in order.
In Fig. 3-3, from 1-8 stitch signals that photelectric receiver accessory power outlet CZ3 comes, correspondence gets into from input socket CZ4, and 1 pin test burner signal and 8 pin ground wires connect K switch 3 two ends, the unlatching of control test lamp bank SY1; 2,3 pin of CZ4 connect K switch 2, with the break-make of K1 Parallel Control alternating current 220V voltage; 4, the demonstration branch road of 5,6,7 pin difference sending and receiving light pipe Fg8-11 and resistance in series R15-18.
Visible through Fig. 3-b and Fig. 3-c, each display circuit of the light emitting diode in photelectric receiver and cabinet face display is parallel with one another, so they will be with putting out with bright in the switch operation process.Just function is different, and Fg3-6 plays the debugging booster action in receiver, and Fg8-11 then is on the plate face of switch cubicle, rises and observes recognition reaction, lets it know the position at disconnecting link place, operation front and back, and in order to judge whether operate as normal.
Used components and parts are asked for an interview tabulation in the components and parts watch circuit:
The main components and parts table of instrument
| The element title | Model specification | The element title | Model specification | |
| Three terminal integrated voltage stabilizer IC1 | WY7806 | K switch 1-3 | SD-6 | |
| Six non-gate ic IC2 | 74LS04 | Insurance BX1 | CS-2A | |
| Laser tube | JG2B | Transformer | (220V/7.5V secondary winding) | |
| Photosensitive tube | | Capacitor C | 1 | 1000uf/25V |
| Transistor BG1-2 | | Capacitor C | 2 | 0.1uf |
| Commutation diode | 1N007 | Potentiometer | W102 | |
| Voltage stabilizing diode D5 | DW-3V | Socket CZ1, CZ2 | Zh-2 | |
| Luminotron Fg1-8 etc. | The Φ reddish yellow | Socket CZ3, CZ4 | Zh-8 | |
| Luminotron Fg9-10 | |
Relay J | JRC-21 |
Detector is installed and used: after " judging the laser acquisition display of electric power disconnecting link physical location " manufactured and designed completion, we just will consider actual installation and use matters.
Transceiver is installed: this detector is divided into Laser emission, and photoelectricity receives and the cabinet face shows three bulks.
For the purpose of clear, shown in wave molding, we have at first carried out topography to high-voltage board, and in A, B, C three-phase, Fig. 4 is the basis with A again mutually, to have repainted the simple and easy pattern relevant with monitoring with operation.Tu Nei represents the dotted line of moving contact 2 and the running orbit that solid line is represented moving contact in the operating process; The triangle body dotted line and the solid line of band arc, expression generating laser 3 receive with photoelectricity and exerciser 5 leans on the cabinet wall to install.Because face wall is dissected, generating laser is had any problem on position display, so dot.
Among Fig. 4,1. static contact 2. moving contacts, 3. laser tube 4. embedded slots, 5. receptions and exerciser (top is the test lamp bank of 4 lamps, and the below is 4 photosensitive tubes) 6. cabinet wall (dissection) 7. control lever connect bag 8. connecting rods 9. connecting levers 10. isolating switchs.
Can see in conjunction with Fig. 4, the moving contact of many high-voltage boards minute, in the closing operation, be to do 90 with moving contact
0The mode of rotation is carried out, and is example with XGN2-12 type high-voltage board mains side disconnecting link, and wherein moving contact and power supply busbar link, and static contact connects isolating switch.The moving contact top connects control lever, and mid diameter is that 9 centimetres porcelain insulator and diameter is that 3 centimetres metal round end links to each other total formation swivel arm.When closing a floodgate, under the operation of connecting lever 9, connecting rod 8, swivel arm does 90 from top to bottom
0Rotate, when vertical, the front end ferrule of moving contact is pushed in the draw-in groove of static contact 1; When separating brake, under the operation of connecting lever connecting rod, swivel arm is pulled away from static contact, and along 90
0Rotate from bottom to top, till straight cutting is gone in the embedded slot 4 of upper end.
No matter be to close a floodgate or separating brake, in traveling process, if the swivel arm of moving contact has long-time stagnation behavior, just can judge has fault to exist.
Laser tube among Fig. 4 (4) and corresponding photosensitive tube (4) are made with the 90 ° camber lines of swivel arm with track and are distributed; Laser tube and photosensitive tube are made the quartern facing to swivel arm porcelain insulator tail end and are distributed at interval; This is because the swivel arm porcelain insulator is 9 centimetres of diameters, 25 centimetres of brachiums, and 90 ° the arc length of then turning round, promptly 1/4 girth is:
1/42 л r=1/4 * 2 * 3.14 * 25=39.25 (centimetre);
Make the quartern of laser tube again:
1/4 * 39.25=9.81 (centimetre);
With 9 centimetres of comparisons of porcelain insulator diameter, very approaching again, so do not have the dead band basically in the laser beam emission, promptly can both shine.But as if selecting the corresponding emission of 3 centimetres of ferrule of diameter, just improper, because diameter is little, clearance space is big, and laser beam has been blocked not in the position that the swivel arm stagnation perhaps can occur---emission light possibility all-pass mistake, then judged not the accurate position of disconnecting link.So we have taked the treatment with irradiation of 9 centimetres of porcelain insulator terminations through analytical calculation, after practical validation is right-on.
On reception and exerciser 5 arcwall faces two bank light pipes are arranged, next row (4) represents photosensitive tube Gm1-4, and a last row (4) represents SY1 test lamp bank; This is to press in K switch 3; Send the high brightness radiance, be radiated on the photosensitive tube, in order to the test probatio inspectionem pecuoarem that receives, whether display circuit is intact; Thus, strengthened the reliability that instrument monitoring shows more.
After transmitting and receiving device and installing, in the positive appropriate location of selecting of high-voltage board, Over-The-Counter face display is installed again; As shown in Figure 5; To export input socket CZ3, CZ4 connection with polycore cable at last, carry out the suitable debugging of resistance, potentiometer and emission, reception, demonstration again, just can devote oneself to work.
Method of application: the instruments design manufacturing accomplish and Installation and Debugging good after, can come into operation.In after, we will combine Fig. 5 to carry out the introduction of method of application.
At first, press power switch, relay indicating light is bright, presses test switch (K3) again, at this moment, connects because of internal circuit, and then four pilot lamp can be bright entirely, explains that photoelectricity receives and display circuit is in proper working order.The closing test switch, if the new high-voltage board that drops into, just can operate first.
Close a floodgate in this way, after the operation will: 1 signal lamp puts out, and 2,3,4 signal lamps are bright.
Separating brake in this way, after the operation will: 4 signal lamps put out, and 1,2,3 signal lamps are bright.
In operating process, No. 2 or No. 3 pilot lamp only extinguish instantaneous, and expression disconnecting link arm is transition, do not stop, and then be not normal.
But No. 2 or No. 3 arbitrary lamps or two lamps are above puts out with duration, other lamp is bright, at this moment can press test switch again and observe; Confirm that all lamps can both be lighted, turn-off test switch again, still the same if lamp puts out phenomenon with the front; Then can judge it is that disconnecting link is not in place in combined floodgate or sub-switching operation; There is phenomenon of the failure, must checks, in time fix a breakdown.And during this period, never agree and carry out any operation relevant with this disconnecting link.
If not operation first, then make an inspection tour at any time and observe, what seen all is the operating result of last time.If when carrying out new operation, can compare with original operation note earlier, under must confirming the light indication and writing down consistent situation, can carry out new operation.Equally, the operation back shows judgement as before.
K1, K2 switch in parallel set-up mode are taked in the power supply start and stop, and reason is: when debugging and maintenance, can open K1 and carry out; When work, then transfer to the K2 control on the cabinet face fully.
The K2 switch can be opened for a long time, so at any time can both Direct observation disconnecting link present position; But because unattended substation increases now, many times all the no one goes to tour, so its long-term unlatching is had little significance.After being provided with K2 cabinet face CS, when having the people to come, pressing gently just and can observe; And when personnel leave, it is turned off; Lift a finger, but can energy savings and prolong serviceable life of electron devices such as laser, photosensitive tube greatly, be good frame mode.
Claims (8)
1. a laser acquisition display of judging electric power disconnecting link physical location is characterized in that, comprise,
Laser transmission circuit: mainly form by 2 hertz frequency oscillators and a plurality of laser tube;
Photosensitive receiving circuit: the number of photosensitive tube is identical with the number of a plurality of laser tubes in the laser transmission circuit, and each photosensitive tube is connected in the direct current power supply loop after being connected in series a light emitting diode and a resistance in order;
Said a plurality of laser tube and a plurality of photosensitive tube are arranged on the and arranged on left and right sides of moving contact (2) the porcelain insulator movement locus of electric power disconnecting link respectively equally spacedly, and the spacing of adjacent two laser tubes and adjacent two photosensitive tubes is not more than the diameter of moving contact (2) porcelain insulator of electric power disconnecting link.
2. the laser acquisition display of judgement electric power disconnecting link physical location according to claim 1; It is characterized in that; Said laser transmission circuit structure is: be serially connected with K switch 1 and insurance BX1 in the loop of the elementary winding access of transformer B1 220V alternating current; Transformer B1 secondary winding two ends are connected to two input ends of rectifier D1-4 respectively, are serially connected with capacitor C 1 between the positive and negative output terminal of rectifier D1-4, and the positive output end of rectifier D1-4 is connected to the input end of three terminal integrated voltage stabilizer IC1; The positive output end of IC1 is connected to 14 pin of six non-gate ic IC2; 7 pin of the negative output terminal of IC1 and IC2 all are connected to the negative output terminal of rectifier D1-4, are serially connected with capacitor C 2, resistance R 2 and potentiometer W1 between 4 pin of IC2 and 6 pin in order, and the centre tap of potentiometer W1 is connected to 6 pin of IC2; Be connected to the base stage of compound transistor BG1-2 behind the 8 pin series resistor R3 of IC2; Be connected to the positive output end of IC1 behind the collector series relay J1 of BG1-2, the emitter of BG1-2 is connected to the negative output terminal of rectifier D1-4, and the positive output end of IC1 is connected in series the negative output terminal that meets rectifier D1-4 after potentiometer W2 and the resistance R 5 in order; Be connected to the positive pole of four laser tube Jg1-4 behind the normal opened contact J1-1 of the centre tap serial connection relay J 1 of potentiometer W2; The negative pole of four laser tube Jg1-4 is connected to the negative output terminal of IC1 respectively behind series resistor R6, R7, R8 and the R9, and the positive pole of voltage stabilizing diode D5 is connected to the centre tap of potentiometer W2, and the negative pole of D5 is connected to the negative output terminal of IC1; Four photosensitive tube Gm1-4 and corresponding four light emitting diode Fg3-6 and four resistance R 11-R14 are arranged in the said photosensitive receiving circuit, and four photosensitive tube Gm1-4 insert in the direct current power supply loop after being connected in series light emitting diode Fg3-6 and resistance R 11-R14 respectively in order.
3. the laser acquisition display of judgement electric power disconnecting link physical location according to claim 2; It is characterized in that also have power indicating circuit in the said laser transmission circuit: light emitting diode Fg1 and resistance R 1 are serially connected between the positive and negative output terminal of rectifier D1-4 in order.
4. the laser acquisition display of judgement electric power disconnecting link physical location according to claim 3 is characterized in that, said transformer B1 secondary winding voltage is 7.5V; Said laser tube model is JG2B, and said photosensitive tube model is 3DU7, and three terminal integrated voltage stabilizer IC1 model is WY7806, and six non-gate ic IC2 models are 74LS04, and the relay J model is JRC-21.
5. the laser acquisition display of judgement electric power disconnecting link physical location according to claim 4; It is characterized in that; Also have interconnective accessory power outlet CZ1 and input socket CZ2, CZ1 anode and earth terminal are connected to potentiometer W2 centre tap and rectifier D1-4 negative output terminal respectively; Four photosensitive tube Gm1-4 and corresponding four light emitting diode Fg3-6 and four resistance R 11-14 are arranged in the said photosensitive receiving circuit, and the CZ2 anode is connected to the CZ2 earth terminal after being connected in series a photosensitive tube and a corresponding light emitting diode and a resistance in order.
6. the laser acquisition display of judgement electric power disconnecting link physical location according to claim 5 is characterized in that, also have the direct supply indicating circuit in the said photosensitive receiving circuit: light emitting diode Fg2 and resistance R 10 are serially connected between the input socket CZ2 two ends.
7. the laser acquisition display of judgement electric power disconnecting link physical location according to claim 6 is characterized in that, also has mutual corresponding 8 stitch accessory power outlet CZ3 and the 8 stitch input socket CZ4 that connect; 4,5,6,7 pin of CZ3 are connected to the node of photosensitive tube Gm1-4 and light emitting diode Fg3-6 respectively, and 8 pin of CZ3 are connected to input socket CZ2 earth terminal, and 2,3 pin of CZ3 are connected to the two ends of K switch 1 respectively; Also have cabinet face display circuit: 4,5,6,7 pin of 8 stitch input socket CZ4 are connected in series the 8 pin earth terminals that are connected to CZ4 behind light emitting diode Fg8-11 and the resistance R 16-R19 respectively in order.
8. the laser acquisition display of judgement electric power disconnecting link physical location according to claim 7 is characterized in that, tests lamp bank SY1 in addition in the said photosensitive receiving circuit; Test lamp bank SY1 is connected between the anode of 1 pin and input socket CZ2 of 8 stitch accessory power outlet CZ3; Also have K switch 2, K switch 3, light emitting diode Fg7 and resistance R 15 in the said cabinet face display circuit: K switch 2 is connected between 2 pin and 3 pin parallelly connected with 220V power switch K1 among the 8 stitch input socket CZ4; K switch 3 is connected between 1 pin and 8 pin of CZ4, and 1 pin of CZ4 connects the 8 pin earth terminals that are connected to CZ4 after light emitting diode Fg7 and the resistance R 15 in order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203861517U CN202255288U (en) | 2011-10-12 | 2011-10-12 | Laser detection display capable of judging actual position of power breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203861517U CN202255288U (en) | 2011-10-12 | 2011-10-12 | Laser detection display capable of judging actual position of power breaker |
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| Publication Number | Publication Date |
|---|---|
| CN202255288U true CN202255288U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203861517U Withdrawn - After Issue CN202255288U (en) | 2011-10-12 | 2011-10-12 | Laser detection display capable of judging actual position of power breaker |
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| CN (1) | CN202255288U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364352A (en) * | 2011-10-12 | 2012-02-29 | 四川省电力公司内江电业局 | Laser detection display for judging actual position of power knife switch |
| CN103489675A (en) * | 2013-09-24 | 2014-01-01 | 国家电网公司 | Disconnecting link operation position photoelectric dialyser |
| CN111947574A (en) * | 2020-08-07 | 2020-11-17 | 珠海格力电器股份有限公司 | Smoke stove integrated machine, position detection method and position detection device |
| CN113985263A (en) * | 2021-04-27 | 2022-01-28 | 国网河南省电力公司南阳供电公司 | Device for remotely monitoring on-off state of air switch |
-
2011
- 2011-10-12 CN CN2011203861517U patent/CN202255288U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364352A (en) * | 2011-10-12 | 2012-02-29 | 四川省电力公司内江电业局 | Laser detection display for judging actual position of power knife switch |
| CN102364352B (en) * | 2011-10-12 | 2013-06-19 | 四川省电力公司内江电业局 | Laser detection display for judging actual position of power knife switch |
| CN103489675A (en) * | 2013-09-24 | 2014-01-01 | 国家电网公司 | Disconnecting link operation position photoelectric dialyser |
| CN111947574A (en) * | 2020-08-07 | 2020-11-17 | 珠海格力电器股份有限公司 | Smoke stove integrated machine, position detection method and position detection device |
| CN113985263A (en) * | 2021-04-27 | 2022-01-28 | 国网河南省电力公司南阳供电公司 | Device for remotely monitoring on-off state of air switch |
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