CN2225039Y - Temperature online monitor for medium and high voltage systems - Google Patents
Temperature online monitor for medium and high voltage systems Download PDFInfo
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- CN2225039Y CN2225039Y CN 94242976 CN94242976U CN2225039Y CN 2225039 Y CN2225039 Y CN 2225039Y CN 94242976 CN94242976 CN 94242976 CN 94242976 U CN94242976 U CN 94242976U CN 2225039 Y CN2225039 Y CN 2225039Y
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- temperature sensor
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Abstract
The utility model discloses a temperature online monitor for medium and high voltage systems, which measures temperature according to the principle that the voltage signals of a temperature sensor are converted into frequency signals and the frequency signals are emitted and transmitted in space. A controlling main program which is applicable for single-chip microcomputers is programmed in advance according to the requirements of multiple measured points and realizes automatic round real-time monitoring of the temperature of each point and the display of the measured points and the temperature values of the measured points. In addition, the temperature values of each point of the front sixteen times can be displayed at any time. The utility model can alarm when temperature exceeds, is forced to trip, can not be influenced by environment too much, and has the advantages of high precision, simple installation and debugging, and low cost.
Description
The utility model relates to the automatically touring on-line monitoring technique of high voltage appearance system temperature, belongs to electrical system holding circuit device.Exactly, when central exactly high-voltage system temperature occurred departing from normal running conditions, this device can be finished this switching.
Along with power system development, the increase of net capacity, the rising of electric pressure, requirement to operational reliability and technical indicator is more and more higher, because design is improper, the fresh water (FW) adjustment is installed bad in the equipment, material oxidation, reasons such as overload operation make part temperatures too high, cause the Operation of Electric Systems accident often, influence development of economic construction, therefore be badly in need of the automatic temperature monitoring device that research is suitable for the high voltage appearance system.
At present, the temperature test of some parts of high voltage appearance system can be with methods such as infrared measurement of temperature or optical fiber temperature-measurements, application number is 94201383.2 " high voltage appearance switch cubicle connector temperature monitoring device " in the patent, it is exactly a kind of non-contact temperature measuring scheme, it is exactly that the temperature of operating all active joints of high voltage appearance switch cubicle is carried out real-time itinerant monitor system, and can show tested and connector temperature value, and energy overtemperature alarm and pressure dropout, real-time display environment temperature value, each phase joint temperature value several times before showing at any time.
Yet its shortcoming is:
1. usable range is narrower, is limited to the monitoring of high voltage appearance switch cubicle connector temperature; 2. affected by environment bigger as effect of dust, be generally limited to closed equipment; 3. cost is higher, and interchangeability is relatively poor; 4. Installation and Debugging difficulty is bigger, and precision is high not enough.
The purpose of the utility model patent is exactly to overcome above-mentioned deficiency, and a kind of touring on-Line Monitor Device of novel temperature that is applied to the high voltage appearance system of development.
The realization the technical solution of the utility model is:
High voltage appearance system temperature on-Line Monitor Device comprises radiating portion, receiving unit, and the emission power circuit, the signal Processing segment count, alarm indication dropout part, control master routine part, its each several part annexation is:
(1) radiating portion, temperature sensor T by temperature-voltage transitions, emission amplifier Y, voltage-frequency converter Z, power amplifier element Q, power valve F forms, its annexation is that emission power A links to each other with temperature sensor T, positive terminal among the one termination emission amplifier Y of the voltage signal of temperature sensor T output, the other end is received the end of oppisite phase of emission amplifier Y, the voltage input end of voltage-frequency conversion chip joins among the output terminal of emission amplifier Y and the voltage-frequency converter Z, the frequency signal output terminal of voltage to frequency conversion chip extremely links to each other with power amplifier element Q control, one of Q is terminated at emission power A, the other end of Q connects the anode of power valve F, and the negative electrode of F is connected to earth point G;
(2) receiving unit, form by receiving tube J, receiver M, reception amplifier JY, shaping circuit JZ, gating circuit JS, its annexation is that the negative electrode of receiving tube J links to each other with power supply VCN, the anode of receiving tube J meets the input end IN of receiver M, the other end OUT3 of M receives earth point GN, output terminal OUT1, the OUT2 of M receives positive terminal and the end of oppisite phase of reception amplifier JY respectively, the output terminal of JY is received the input end of shaping circuit JZ, the output terminal of JZ is received the input end of gating circuit JS chip, and the output terminal of gating circuit JS is connected to single-chip microcomputer D;
(3) emission power part, emission power A links to each other with temperature sensor T, emission amplifier Y, voltage-frequency converter Z, positive supply VCC links to each other with power amplifier element Q, emission power comprises power pack H, electronic regulation circuit X, power pack H is placed on the high voltage appearance system principal current busbar, the output three of power pack H is terminated at the input end of electronic regulation circuit X, and the electronic regulation circuit is exported positive supply VCC, negative supply-VSS and the ground connection that three ends are connected to radiating portion respectively.
The utility model compared with prior art, its advantage is:
1. can carry out in real time itinerant monitor system automatically to the temperature at each position of operating high voltage appearance system, and can show tested position and temperature value, tested scope is big;
2. affected by environment little, can be used for open type equipment, adaptability is strong;
3. Installation and Debugging are simple, and commercialization is easier;
4. cost is very low, can use the temperature sensor of all temps-voltage transitions;
5. precision is higher, and component interchangeability is stronger.
The utility model will be further described below in conjunction with accompanying drawing:
Fig. 1 is a structural representation block diagram of the present utility model;
Fig. 2 (a) is embodiment (a) radiating portion cut-away drawing
Fig. 2 (b) is the wiring diagram of embodiment (b) temperature sensor
Fig. 2 (c) is the wiring diagram of embodiment (c) temperature sensor
Fig. 2 (d) is the wiring diagram of embodiment (d) temperature sensor
Fig. 3 is the receiving unit cut-away drawing
Fig. 4 is an emission power part-structure block diagram
Among the figure: T1～Tn is a temperature sensor; A1～An is an emission power; Y1～Yn is an emission amplifier; Z1～Zn is a voltage-frequency converter; F is a power valve; J is a receiving tube; M is a receiver; JY1～JYn is a reception amplifier; JZ1～JZn is a shaping circuit; Js1～Jsn is a gating circuit; D is a single-chip microcomputer; 1 is the alarm indication trip circuit.
As can be seen from Figure 1, radiating portion of the present utility model is by the temperature biography of temperature-voltage transitions Sensor T, emission amplifier Y, voltage-frequency converter Z, power amplifier element Q, transmitting tube F form, Its annexation is that emission power A links to each other with temperature sensor T, the electricity of temperature sensor T output Positive terminal among the one termination emission amplifier Y of pressure signal, the other end is received emission amplifier Y's End of oppisite phase, voltage-frequency conversion among the output of emission amplifier Y and the voltage-frequency converter Z The voltage input end of chip joins, the frequency signal output of voltage to frequency conversion chip and power amplifier element Q control is extremely continuous, and one of Q is terminated at emission power A, and the other end of Q connects the anode of transmitting tube F, The negative electrode of F is connected to earth point G;
Receiving unit of the present utility model, by receiving tube J, receiver M, reception amplifier JY, Shaping circuit JZ, gating circuit JS form, and its annexation is negative electrode and the power supply of receiving tube J VCN links to each other, and the anode of receiving tube J meets the input IN of receiver M, and the other end OUT3 of M receives The positive terminal that earth point GN, output OUT1, the OUT2 of M receive respectively reception amplifier JY with End of oppisite phase, the output of JY is received the input of shaping circuit JZ, and the output of JZ is received gating The input of circuit JS chip, the output of gating circuit JS is connected to single-chip microcomputer D;
The emission power A of emission power part and temperature sensor T, emission amplifier Y, voltage-frequency converter Z links to each other, and positive supply VCC links to each other with power amplifier element Q, and emission power comprises electricity Current converter H, electronic regulation circuit X, power pack H is placed in high voltage appearance system principal current On the busbar, the output three of power pack H is terminated at the input of electronic regulation circuit X, electricity Sub-mu balanced circuit is exported the positive supply VCC that three ends are connected to respectively radiating portion, negative supply-VSS and Ground connection.
The emission power A of the temperature sensor of above-mentioned radiating portion and temperature sensor T, emission is put Big device Y, voltage-frequency converter Z, transmitting tube F and emission power A are 1 to n group, receiving unit Receiving tube J, receiver M, reception amplifier JY, shaping circuit JZ, gating circuit JS 1 to n organize.
In addition, the utility model also includes following a few part
Signal is processed segment count, comprises singlechip chip N1, address latch N2, and EPROM N3, Extended chip N5, its annexation is: by the output letter of the shaping circuit of temperature signal receiving unit Number receive on the singlechip chip N1.
Alarm indication dropout part comprises buzzer, the LED charactron, and the overtemperature trip circuit, it connects Connecing is by singlechip chip P3 mouth control signal to be delivered to the overtemperature trip circuit, with overtemperature alarm Signal is through resistance R 51, and triode P9 delivers to buzzer E1;
Radiating portion shields by the irony box, transmitting tube and the receiving tube part of corresponding group Aim at respectively; If a plurality of measured points are arranged, there is a cover radiating portion each measured point, and receiving unit is sent out The radio source circuit carries out signal by the single-chip microcomputer gating and processes the work between the each part mentioned above circuit Program is carried out by the automatic itinerant monitor system scheme of pre-designed temperature, and by the Single-chip Controlling master Program is achieved;
Now, (b), (c), (d) further structure situation of the present utility model is illustrated in conjunction with the accompanying drawings also by most preferred embodiment (a) to the temperature sensor of radiating portion and the circuit conversion between emission amplifier.
Embodiment (a):
From Fig. 2 (a), select for use the PN junction temperature sensor as temperature sensor, the radiating portion annexation is the negative electrode of PN junction temperature sensor D1 and a utmost point of capacitor C 2, the positive pole of capacitor C 4, resistance R 2 is joined and is connected to earth point G1, the anode of another utmost point of C2 and the negative pole of capacitor C 4 and stabilivolt W2 joins and is connected to negative supply-VSS1, anode connecting resistance R4 and the R5 of D1, the other end of R4 connects the collector of triode P1, the base stage of P1 connects the other end and the resistance R 1 of R2, the emitter of P1 and resistance R 3 are joined, the other end of R3 and the other end of R1, the positive pole of capacitor C 3, one utmost point of capacitor C 1, the negative electrode of stabilivolt W1 joins and receives positive supply VCC1 again, the anode of W1 and the negative electrode of W2, another utmost point of C1, the negative pole of C3 is connected to earth point G1 mutually, the 2nd pin of amplifier 741 Y1 and an end of resistance R 6 are penetrated in the other end sending and receiving of R6, the 3rd pin of Y1 and resistance R 7, R8 joins, the other end of R8 is received earth point G1, the adjustable end of another termination potentiometer V1 of R7, the termination VCC1 of V1, the other end is received earth point G1, the 1st pin of Y1 connects the end of potentiometer V2, adjustable termination negative supply-VSS1 of V2, another termination Y1 the 5th pin, the 7th pin of Y1 meets VCC1, the 6th pin connecting resistance R9 of Y1, the 7th pin of one end of the other end of R9 and capacitor C 5 and voltage-frequency conversion chip 331 Z1 joins, the other end of C5 is received earth point G1, the 1st pin of Z1 and the 6th pin join and are connected to resistance R 10 and capacitor C 6, the other end of the other end of R10 and capacitor C 6, the 4th pin of Z1, the adjustable end of potentiometer V3 and an end join and receive earth point G1 again, the other end of V3 is connected to Z1 the 2nd pin through resistance R 12, the 8th pin connecting resistance R11 of Z1 also is connected to VCC1, the 5th pin of R11 and Z1 joins and receives earth point G1 through capacitor C 7 again, the 3rd pin of Z1 is received resistance R 13, R14, the base stage of another termination triode Q1 of R14, the emitter of Q1 is received VCC1 again through the other end that resistance R 15 is connected to R13, the collector of Q1 connects the anode of power valve F1, the plus earth Gl of F1;
As can be seen from Figure 3: receiving unit of the present utility model is by receiving tube, reception amplifier, shaping circuit, gating circuit is formed, its annexation is, the negative electrode of receiving tube J1 and capacitor C 8 one ends, the positive pole of capacitor C 10 joins and receives positive supply VCN1 again, the other end of C8 and the negative pole of C10 join and connect capacitor C 9 again, the positive pole of capacitor C 11 is received earth point GN then, the other end of C9 and the negative pole of C11 join and receive power supply-VSN1 again, the anode of J1 is connected to an end of resistance R 16 and an end of capacitor C 12, the other end of R16 and capacitor C 13 are joined and are received earth point GN again, the other end of C12 is received the 3rd pin of resistance R 19 and amplifier 741 JY1 again through resistance R 17, the other end ground connection GN of R19, the other end of C13 is received the 2nd pin of resistance R 20 and JY1 through resistance R 18, the 7th pin of JY1 meets VCN1, the 4th pin connects-VSN1, the 6th pin of another termination JY1 of R20, and then be connected to the 6th pin of amplifier chip 358 P6 and the negative electrode of diode D3 through R21, receive the 3rd pin of amplifier P7 simultaneously through resistance R 22, the 5th pin of P6 is received earth point GN, the 7th pin connects the anode of D3, the 2nd pin of amplifier chip 358 P7 and resistance R 23, R24 joins, the other end of R23 is received earth point GN, the 8th pin of P7 meets VCN1, the 1st pin of another termination P7 of R24, the 1st pin of capacitor C 14 and Schmidt's phase locking unit 74LS14P8, the other end of C14 is received earth point GN, the 4th pin ground connection GN of P7, the 2nd pin of P8 is received the 2nd pin of triple gate 74LS125 JS1, gating end the 1st pin of JS1 is connected to the P1 mouth of single-chip microcomputer 8031, and the T1 end that the 3rd pin is connected to single-chip microcomputer 8031 removes counting.
Embodiment (b):
From Fig. 2 (b) as can be known, select for use semiconductor temperature sensor AD590 as temperature sensor in the present embodiment, its annexation be AD590 P22 just be connected to resistance R 30 and positive supply VCC1, the other end connecting resistance R31 of resistance R 30 and resistance R 33, the negative terminal connecting resistance R32 of P22 and resistance R 34, the R31 and the R32 other end join and receive earth point G1 again, resistance R 34 and resistance R 35, the 3rd pin of amplifier Y1 joins, the R35 other end is received earth point G1, the other end of R33 is connected to the 2nd pin and the R6 of Y1, and the annexation of the other parts of circuit is identical with embodiment (a) narration;
Embodiment (c)
From Fig. 2 (c) as can be known: in the present embodiment, select for use semiconductor temperature sensor LM35 series as temperature sensor, its annexation is that the 1st pin of temperature sensor LM35 P23 is connected to power supply VCC1, the 2nd pin is connected to the 3rd pin of emission amplifier Y1 through resistance R 40, the 3rd pin of P23 is received earth point G1 and resistance R 41, the R41 other end is received the 2nd pin and the resistance R 6 of Y1 again, and the annexation of the other parts of circuit is identical with embodiment (a) narration;
Embodiment (d)
From Fig. 2 (d) as can be known: select for use semiconductor temperature sensor LM35 series in the present embodiment as temperature sensor, its annexation is that the 1st pin of temperature sensor LM35 P23 is received power supply VCC1, the 2nd pin of P23 is connected to resistance R 40 and resistance R 43, link to each other with the 3rd pin of emission amplifier Y1 by resistance R 40, the 3rd pin of temperature sensor is received earth point G1 and is connected to the 2nd pin of emission amplifier Y1 by resistance R 41.Another termination negative supply-VSS1 of R43, the annexation of the other parts of circuit is identical with embodiment (a) narration.
Claims (6)
1. a high voltage appearance system temperature on-Line Monitor Device comprises signal Processing segment count, alarm indication dropout part, control master routine part etc., it is characterized in that:
(1) radiating portion, temperature sensor T by temperature-voltage transitions, emission amplifier Y, voltage-frequency converter Z, power amplifier element Q, power valve F forms, its annexation is that emission power A links to each other with temperature sensor T, positive terminal among the one termination emission amplifier Y of the voltage signal of temperature sensor T output, the other end is received the end of oppisite phase of emission amplifier Y, the voltage input end of voltage-frequency conversion chip joins among the output terminal of emission amplifier Y and the voltage-frequency converter Z, the frequency signal output terminal of voltage to frequency conversion chip extremely links to each other with power amplifier element Q control, one of Q is terminated at emission power A, the other end of Q connects the anode of power valve F, and the negative electrode of F is connected to earth point G;
(2) receiving unit, form by receiving tube J, receiver M, reception amplifier JY, shaping circuit JZ, gating circuit JS, its annexation is that the negative electrode of receiving tube J links to each other with power supply VCN, the anode of receiving tube J meets the input end IN of receiver M, the other end OUT3 of M receives earth point GN, output terminal OUT1, the OUT2 of M receives positive terminal and the end of oppisite phase of reception amplifier JY respectively, the output terminal of JY is received the input end of shaping circuit JZ, the output terminal of JZ is received the input end of gating circuit JS chip, and the output terminal of gating circuit JS is connected to single-chip microcomputer D;
(3) emission power part, emission power A links to each other with temperature sensor T, emission amplifier Y, voltage-frequency converter Z, positive supply VCC links to each other with power amplifier element Q, emission power comprises power pack H, electronic regulation circuit X, power pack H is placed on the high voltage appearance system principal current busbar, the output three of power pack H is terminated at the input end of electronic regulation circuit X, and the electronic regulation circuit is exported positive supply VCC, negative supply-VSS and the ground connection that three ends are connected to radiating portion respectively.
2. high voltage appearance system temperature on-Line Monitor Device according to claim 1, it is characterized in that: the temperature sensor in the radiating portion is selected PN junction temperature sensor D1 for use, one utmost point of the negative electrode of this temperature sensor and capacitor C 2, the positive pole of capacitor C 4, resistance R 2 is joined and is attempted by earth point G1, the anode of another utmost point of capacitor C 2 and the negative pole of capacitor C 4 and stabilivolt W2 joins and is connected to negative supply-VSS1, anode connecting resistance R4 and the R5 of D1, the other end of resistance R 4 connects the collector of triode P1, the base stage of P1 connects the other end and the resistance R 1 of R2, the emitter of P1 and resistance R 3 are joined, the other end of R3 and the other end of R1, the positive pole of capacitor C 3, one utmost point of capacitor C 1, the negative electrode of stabilivolt W1 is connected in positive supply VCC1 mutually, the anode of W1 and the negative electrode of W2, the utmost point of C1, the negative pole of C3, the utmost point of R2 be connected to mutually " " G1, the voltage signal of exporting between the anode of resistance R 4 and temperature sensor D1 is penetrated the end of oppisite phase of amplifier by resistance R 5 sending and receiving, adjustable end by potentiometer V1, the positive terminal of amplifier Y is penetrated in series resistor R7 sending and receiving again, the fixedly termination positive supply VCC1 of V1, another termination " " G1, also be connected with another branch road between R7 and emission amplifier Y, this branch road links to each other with earth point G1 by resistance R 8.
3. high voltage appearance system temperature on-Line Monitor Device according to claim 1, it is characterized in that: the temperature sensor of radiating portion selects for use semiconductor temperature sensor AD59 0 as temperature sensor, this temperature sensor just be connected to resistance R 30 and positive supply VCC1, the other end of resistance R 30 links to each other with resistance R 31, link to each other by the end of oppisite phase of resistance R 33 with emission amplifier Y, the negative terminal connecting resistance R33 of temperature sensor and resistance R 34, resistance R 35, R34 links to each other and is attempted by the positive terminal of emission amplifier Y, the R32 other end, the other end of R35 link to each other with the other end of R31 and be connected to again " " G1.
4. high voltage appearance system temperature on-Line Monitor Device according to claim 1, it is characterized in that: the temperature sensor of radiating portion selects for use semiconductor temperature sensor LM35 series as temperature sensor, the 2nd pin of this temperature sensor is connected to the positive terminal of emission amplifier through resistance R 40, the 3rd pin of temperature sensor is connected on earth point G1 and links to each other with resistance R 41, receive the end of oppisite phase of emission amplifier again by R41, the 1st pin of temperature sensor meets positive supply VCC1.
5. high voltage appearance system temperature on-Line Monitor Device according to claim 1, it is characterized in that: the temperature sensor of radiating portion is selected semiconductor temperature sensor LM35 series for use, the 2nd pin of temperature sensor is connected to resistance R 40, resistance R 43, link to each other by the positive terminal of resistance R 40 with emission amplifier Y, the 3rd pin of temperature sensor is connected to the end of oppisite phase of emission amplifier Y by resistance R 41.
6. according to the described high voltage appearance system temperature of any one claim on-Line Monitor Device in the claim 1 to 5, it is characterized in that: the temperature sensor T of radiating portion, emission amplifier Y, voltage to frequency converter Z, power valve F and emission power A are 1 to n group, and the receiving tube J of receiving unit, receiver M, reception amplifier JY, shaping circuit JZ, gating circuit JS 1 to n organize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94242976 CN2225039Y (en) | 1994-11-26 | 1994-11-26 | Temperature online monitor for medium and high voltage systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94242976 CN2225039Y (en) | 1994-11-26 | 1994-11-26 | Temperature online monitor for medium and high voltage systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2225039Y true CN2225039Y (en) | 1996-04-17 |
Family
ID=33849465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94242976 Expired - Fee Related CN2225039Y (en) | 1994-11-26 | 1994-11-26 | Temperature online monitor for medium and high voltage systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2225039Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968384A (en) * | 2010-09-21 | 2011-02-09 | 淮南润成科技有限公司 | Temperature sensor |
| CN102538992A (en) * | 2011-12-21 | 2012-07-04 | 成都众询科技有限公司 | Wireless multi-channel temperature acquisition system |
| CN109029758A (en) * | 2018-08-20 | 2018-12-18 | 重庆骞纳马科技有限公司 | A kind of temperature of high-tension switch cabinet monitoring display system and its control method |
-
1994
- 1994-11-26 CN CN 94242976 patent/CN2225039Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968384A (en) * | 2010-09-21 | 2011-02-09 | 淮南润成科技有限公司 | Temperature sensor |
| CN101968384B (en) * | 2010-09-21 | 2012-11-28 | 淮南润成科技股份有限公司 | Temperature sensor |
| CN102538992A (en) * | 2011-12-21 | 2012-07-04 | 成都众询科技有限公司 | Wireless multi-channel temperature acquisition system |
| CN109029758A (en) * | 2018-08-20 | 2018-12-18 | 重庆骞纳马科技有限公司 | A kind of temperature of high-tension switch cabinet monitoring display system and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |