CN103985296A - Portable relay protection fixed value setting simulation training device - Google Patents

Portable relay protection fixed value setting simulation training device Download PDF

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Publication number
CN103985296A
CN103985296A CN201410231929.5A CN201410231929A CN103985296A CN 103985296 A CN103985296 A CN 103985296A CN 201410231929 A CN201410231929 A CN 201410231929A CN 103985296 A CN103985296 A CN 103985296A
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China
Prior art keywords
capacitor
chip
fixed value
relay protection
value setting
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CN201410231929.5A
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CN103985296B (en
Inventor
董国威
沈淼
汪雷
宋毅
张磊
徐照民
宋根华
邵涤球
付阳
周宗学
陈乐�
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State Grid Corp of China SGCC
Xuancheng Power Supply Co of State Grid Anhui Electric Power Co Ltd
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State Grid Corp of China SGCC
Xuancheng Power Supply Co of State Grid Anhui Electric Power Co Ltd
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Priority to CN201410231929.5A priority Critical patent/CN103985296B/en
Publication of CN103985296A publication Critical patent/CN103985296A/en
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Publication of CN103985296B publication Critical patent/CN103985296B/en
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Abstract

The invention discloses a portable relay protection fixed value setting simulation training device. A control circuit and a storage battery are arranged in a shell. The shell comprises an upper shell body and a lower shell body. A liquid crystal display screen, a control keyboard and an ISP download interface are arranged on a front panel of the upper shell body. A touch screen, a JTAG download interface and a charging interface are arranged on a front panel of the lower shell body. The control circuit comprises a signal chip microcomputer circuit, a JTAG interface circuit, a power circuit, a microcontroller U1, an ISP interface circuit and a touch screen driving circuit. The microcontroller U1 is connected with a plurality of keys of the control keyboard and further connected with an external crystal oscillator circuit and a reset circuit. The portable relay protection fixed value setting simulation training device has the advantages that the problem that special training rooms need to be built when fixed value setting training is conducted on staff in the prior art is solved, relay protection fixed value setting training can be conveniently conducted on the staff, the cost is low, and human and material resources are saved.

Description

Portable relay protection fixed value setting emulation training device
Technical field
The present invention relates to a kind of portable relay protection fixed value setting emulation training device.
Background technology
Along with scientific and technical develop rapidly, the application of relay protector in transformer station is also more and more extensive, and it is not only protecting the safety of equipment itself, but also has ensured normally carrying out of producing.Therefore, carry out relay protection adjust for support equipment safety and what produce is normally very important.
Protective relaying device (comprising automatic safety device) is the most basic, the most important and the most effective means that ensure power equipment safety and power system stability.The safe and stable operation of electric system is saved and ensured to the correct operation of protective relaying device heap of times.But this is also a handle double-edged sword, once incorrect operation occurs protective relaying device, tend to become the cause of bringing out power grid accident and the chief culprit who expands power grid accident.In all previous great system break-down and large area blackout, substantially can find the shade of relay protection incorrect operation both at home and abroad." three mistake " accident of relay protection is the main cause of relay protection incorrect operation, and it comprises tuning error, touches by mistake, mis-wired.
And special weather can affect the adaptability of substation relay protection definite value, in real work simultaneously, also there is the situation of relay protection tuning error.It is an important job in electric system production run that relay protection setting calculates.Along with the continuous expansion of electrical network scale, electric network composition is increasingly sophisticated, electric system adjust calculate workload and complexity increasing.For preventing the generation of tuning error situation in fixed value adjusting process at the scene, improve protective relaying device fixed value adjusting one-time success rate, need fixed value adjusting personnel to carry out a large amount of fixed value adjusting training.
Therefore, in electric system, need often employee to be carried out to the training of relay protection fixed value setting, in the time of training, need complete artificial site fixed value adjusting process.At present, while carrying out the training of protective relaying device fixed value adjusting, can only in specific Classroom, carry out, could realize the emulation of on-the-spot fixed value adjusting process.And this relay protection Classroom could be set up Classroom because needs expend substantial contribution, therefore only just configure in province special training mechanism of company level at present.At every turn can only minority part employee just there is the chance of the training of obtaining.Overwhelming majority employees are the fixed value adjusting training chance of not carrying out relay protection.But, in electric system, be very important as the accuracy of the protective relaying device definite value of power network safety operation lifeline.Therefore,, in the urgent need to one portable device cheaply, worker is carried out to the fixed value adjusting training of relay protection.
Summary of the invention
The present invention is the weak point existing in above-mentioned prior art for avoiding; a kind of portable relay protection fixed value setting emulation training device is provided, in prior art, worker is carried out to fixed value adjusting training and need to set up the problem of special Classroom, be convenient to worker to carry out relay protection fixed value setting training to solve.
The present invention be technical solution problem by the following technical solutions.
Portable relay protection fixed value setting emulation training device, its design feature is to comprise housing, the accumulator that is provided with control circuit within described housing and is used to portable relay protection fixed value setting emulation training device to power; Described housing comprises upper shell and lower house; On the front panel of described upper shell, be provided with LCDs, supervisory keyboard and ISP (In-System Programming, online programmable) download interface; On the front panel of described lower house, be provided with touch-screen, JTAG (Joint Test Action Group; Joint test working group) download mouth and charging inlet;
Described control circuit comprises single chip circuit, jtag interface circuit, power circuit, microcontroller U1, ISP interface circuit and driving circuit; Described microcontroller U1 is connected with multiple buttons of described supervisory keyboard, and described microcontroller U1 is also connected with external crystal oscillation circuit and reset circuit; Described microcontroller U1 is also connected with ISP interface chip J2.
The design feature of portable relay protection fixed value setting emulation training device of the present invention is also:
Described single chip circuit comprises single-chip microcomputer LM3S615, reset chip CAT811R, reset key S10, resistance R 5, capacitor C 5~C11, crystal oscillator Y2; The VCC termination external power supply of described reset chip CAT811R, one end of described reset key S10 is connected with the MR end of described reset chip CAT811R, the other end ground connection of described reset key S10; The RST end of described reset chip CAT811R is connected with the RST end of described single-chip microcomputer LM3S615; One end of described resistance R 5 is connected with the RST end of described reset chip CAT811R, the other end ground connection of described resistance R 5;
The two ends of described capacitor C 5~C11 are all connected with described single-chip microcomputer LM3S615; The two ends of described crystal oscillator Y2 are also all connected with described single-chip microcomputer LM3S615, and one end of one end of described capacitor C 10 and capacitor C 11 is connected on the two ends of crystal oscillator Y2, the other end ground connection of the other end of described capacitor C 10 and capacitor C 11.
The resistor group RP1 that described jtag interface circuit comprises JTAG chip and is 10K by 8 resistances resistance in parallel forms between two; Described resistor group RP1 is connected with described JTAG chip.
Described power circuit comprises power interface circuit and mu balanced circuit; Described power interface circuit comprises power plug joint J1, capacitor C 3, light emitting diode D2 and resistance R 2; The two ends of described capacitor C 3 are connected on two splicing ears of described power plug joint J1; One end of described resistance R 2 is connected with one end (+5V end) of described capacitor C 3, and the other end of described resistance R 2 is connected with the other end (GND end) of described capacitor C 3 by described light emitting diode D2;
Voltage stabilizing chip SPX1117M3-3.3, electrochemical capacitor C12, electrochemical capacitor C13 and the voltage stabilizing diode D3 of described mu balanced circuit comprises exportable+3.3V voltage; The positive pole of described voltage stabilizing diode D3 is connected with+5V power supply, and the negative pole of described voltage stabilizing diode D3 is connected to after being connected with the positive pole of described electrochemical capacitor C12 on the Vin end of voltage stabilizing chip SPX1117M3-3.3; The Vout end of the positive pole of described electrochemical capacitor C13 and voltage stabilizing chip SPX1117M3-3.3 is connected, and the negative pole of described electrochemical capacitor C12 and C13 is all connected on the GND end of voltage stabilizing chip SPX1117M3-3.3 also ground connection.
Described microcontroller U1 is ATMEGA16L; Multiple buttons of described supervisory keyboard comprise button S1~S9; Described button S1~S9 is all connected with described microcontroller U1;
Described external crystal oscillation circuit comprises capacitor C 1, capacitor C 2 and crystal oscillator Y1; The two ends of described crystal oscillator Y1 are all connected with described microcontroller U1; One end of one end of described capacitor C 1 and capacitor C 2 is connected on the two ends of crystal oscillator Y2, the other end ground connection of the other end of described capacitor C 1 and capacitor C 2;
Described reset circuit comprises reset key S0, capacitor C 4, resistance R 1 and diode D1; One end ground connection after described reset key S0 and capacitor C 4 are in parallel, the other end after described reset key S0 is in parallel with capacitor C 4 is connected with the RESET of described microcontroller U1 end; One end be connected+5V power supply after described resistance R 1 is in parallel with diode D1, the other end after described resistance R 1 is in parallel with diode D1 is connected with the RESET of described microcontroller U1 end.
Described driving circuit comprises touch-screen control chip ADS7846, capacitor C 14, capacitor C 15, resistance R 6; Described capacitor C 14, capacitor C 15, resistance R 6 are all connected with described touch-screen control chip ADS7846, and described touch-screen is connected with described touch-screen control chip ADS7846 and is driven and controlled by touch-screen control chip ADS7846.
Described LCDs comprises LCD MODULE LCD1602, is connected with resistance R 3 and resistance R 4 on described LCD MODULE LCD1602.
Compared with the prior art, beneficial effect of the present invention is embodied in:
Portable relay protection fixed value setting emulation training device of the present invention, portable relay protection fixed value setting training set can complete artificial site fixed value adjusting process, only expends a small amount of fund and just can complete the repeatability training to employee.Design small and exquisite, portable good.Can carry out the protective relaying device fixed value adjusting training of different model by the installation of disparate modules, strong adaptability.
1) improve field staff's fixed value adjusting one-time success rate; After portable relay protection fixed value setting training and examination device development completes and comes into operation, after the training of field staff by device, examination, again carry out fixed value adjusting work, can significantly improve fixed value adjusting one-time success rate.
2) for ample resources is saved in field staff's training; If use field device to carry out fixed value adjusting training, need notice scheduling to arrange the plan that has a power failure, need to consume a large amount of person property's resources; Carry out emulation training work if set up full-scale investigation chamber, need to purchase special model protective device, also need to consume a large amount of person property's resources.By the use of device, field staff can carry out the work of analogue simulation fixed value adjusting on device, also can carry out examination work, for company saves a large amount of person property's resources simultaneously.
3) shorten power off time; Through device training, examination by after professional carry out fixed value adjusting work, work efficiency significantly promotes, the working time significantly shortens, and can make the working time shorten, and then shortens power off time.
4) improve social influence power; By shortening power off time, can provide the electric power energy that more has quality assurance for society, reduce user's frequency of power cut and power off time.Fully demonstrate power supply department core social responsibility---fulfil the responsibility of scientific development and safe power supply, ensure safer, more economical, more clean, continuable energy supply; Provide strong support for building strong intelligent grid; Improve to a greater extent the social influence power of power supply department, the positive image of lifting power supply department.
Portable relay protection fixed value setting emulation training device of the present invention, have solve in prior art to worker carry out fixed value adjusting training need to set up the problem of special Classroom, can be easily to worker carry out relay protection fixed value setting training, cost is low, the advantages such as resource use manpower and material resources sparingly.
Brief description of the drawings
Fig. 1 is the structural representation of portable relay protection fixed value setting emulation training device of the present invention.
Fig. 2 is an embodiment of the front panel of the upper shell of portable relay protection fixed value setting emulation training device of the present invention.
Fig. 3 is an embodiment of the front panel of the upper shell of portable relay protection fixed value setting emulation training device of the present invention.
Fig. 4 is the circuit diagram of the single chip circuit of portable relay protection fixed value setting emulation training device of the present invention.
Fig. 5 is the circuit diagram of the jtag interface circuit of the power circuit of portable relay protection fixed value setting emulation training device of the present invention.
Fig. 6 is the circuit diagram of the power interface circuit of portable relay protection fixed value setting emulation training device of the present invention.
Fig. 7 is the circuit diagram of the mu balanced circuit of portable relay protection fixed value setting emulation training device of the present invention.
Fig. 8 is the circuit diagram of the microcontroller U1 of portable relay protection fixed value setting emulation training device of the present invention.
Fig. 9 is the circuit diagram of the external crystal oscillation circuit of the portable relay protection fixed value setting emulation training device of prior art.
Figure 10 is the circuit diagram of the reset circuit of portable relay protection fixed value setting emulation training device of the present invention.
Figure 11 is the circuit diagram of the ISP interface circuit of portable relay protection fixed value setting emulation training device of the present invention.
Figure 12 is the circuit diagram of the driving circuit of portable relay protection fixed value setting emulation training device of the present invention.
Figure 13 is the circuit diagram of the LCD MODULE LCD1602 of portable relay protection fixed value setting emulation training device of the present invention.
In accompanying drawing 1-3,1 housing, 2 upper shells, 3 lower houses, 4 accumulators, 5 LCDs, 6 supervisory keyboards, 7ISP download interface, 8 touch-screens, 9JTAG downloads mouth, 10 charging inlets, 11 buttons.
Below pass through embodiment, and the invention will be further described by reference to the accompanying drawings.
Embodiment
Referring to Fig. 1~13, portable relay protection fixed value setting emulation training device, comprises housing 1, the accumulator 4 that is provided with control circuit within described housing 1 and is used to portable relay protection fixed value setting emulation training device to power; Described housing 1 comprises upper shell 2 and lower house 3, as Figure 1-3; On the front panel of described upper shell 2, be provided with LCDs 5, supervisory keyboard 6 and ISP download interface 7; On the front panel of described lower house 3, be provided with touch-screen 8, JTAG download mouth 9 and charging inlet 10;
Described control circuit comprises single chip circuit, jtag interface circuit, power circuit, microcontroller U1, ISP interface circuit (as shown in figure 11) and driving circuit; Described microcontroller U1 is connected with multiple buttons 11 of described supervisory keyboard, and described microcontroller U1 is also connected with external crystal oscillation circuit and reset circuit; Described microcontroller U1 is also connected with ISP interface chip J2 (as shown in figure 11).
As shown in Figure 4, described single chip circuit comprises single-chip microcomputer LM3S615, reset chip CAT811R, reset key S10, resistance R 5, capacitor C 5~C11, crystal oscillator Y2; The VCC termination external power supply of described reset chip CAT811R, one end of described reset key S10 is connected with the MR end of described reset chip CAT811R, the other end ground connection of described reset key S10; The RST end of described reset chip CAT811R is connected with the RST end of described single-chip microcomputer LM3S615; One end of described resistance R 5 is connected with the RST end of described reset chip CAT811R, the other end ground connection of described resistance R 5;
The two ends of described capacitor C 5~C11 are all connected with described single-chip microcomputer LM3S615; The two ends of described crystal oscillator Y2 are also all connected with described single-chip microcomputer LM3S615, and one end of one end of described capacitor C 10 and capacitor C 11 is connected on the two ends of crystal oscillator Y2, the other end ground connection of the other end of described capacitor C 10 and capacitor C 11.
As shown in Figure 5, the resistor group RP1 that described jtag interface circuit comprises JTAG chip and is 10K by 8 resistances resistance in parallel forms between two; Described resistor group RP1 is connected with described JTAG chip.
Described power circuit comprises power interface circuit and mu balanced circuit; As shown in Figure 6, described power interface circuit comprises power plug joint J1, capacitor C 3, light emitting diode D2 and resistance R 2; The two ends of described capacitor C 3 are connected on two splicing ears of described power plug joint J1; One end of described resistance R 2 is connected with one end (+5V end) of described capacitor C 3, and the other end of described resistance R 2 is connected with the other end (GND end) of described capacitor C 3 by described light emitting diode D2;
As shown in Figure 7, described mu balanced circuit comprises voltage stabilizing chip SPX1117M3-3.3, electrochemical capacitor C12, electrochemical capacitor C13 and the voltage stabilizing diode D3 of exportable+3.3V voltage; The positive pole of described voltage stabilizing diode D3 is connected with+5V power supply, and the negative pole of described voltage stabilizing diode D3 is connected to after being connected with the positive pole of described electrochemical capacitor C12 on the Vin end of voltage stabilizing chip SPX1117M3-3.3; The Vout end of the positive pole of described electrochemical capacitor C13 and voltage stabilizing chip SPX1117M3-3.3 is connected, and the negative pole of described electrochemical capacitor C12 and C13 is all connected on the GND end of voltage stabilizing chip SPX1117M3-3.3 also ground connection.
As shown in Figure 8, described microcontroller U1 is ATMEGA16L; Multiple buttons of described supervisory keyboard comprise button S1~S9; Described button S1~S9 is all connected with described microcontroller U1;
As shown in Figure 9, described external crystal oscillation circuit comprises capacitor C 1, capacitor C 2 and crystal oscillator Y1; The two ends of described crystal oscillator Y1 are all connected with described microcontroller U1; One end of one end of described capacitor C 1 and capacitor C 2 is connected on the two ends of crystal oscillator Y2, the other end ground connection of the other end of described capacitor C 1 and capacitor C 2;
As shown in figure 10, described reset circuit comprises reset key S0, capacitor C 4, resistance R 1 and diode D1; One end ground connection after described reset key S0 and capacitor C 4 are in parallel, the other end after described reset key S0 is in parallel with capacitor C 4 is connected with the RESET of described microcontroller U1 end; One end be connected+5V power supply after described resistance R 1 is in parallel with diode D1, the other end after described resistance R 1 is in parallel with diode D1 is connected with the RESET of described microcontroller U1 end.
As shown in figure 12, described driving circuit comprises touch-screen control chip ADS7846, capacitor C 14, capacitor C 15, resistance R 6; Described capacitor C 14, capacitor C 15, resistance R 6 are all connected with described touch-screen control chip ADS7846, and described touch-screen is connected with described touch-screen control chip ADS7846 and is driven and controlled by touch-screen control chip ADS7846.
As shown in figure 13, described LCDs comprises LCD MODULE LCD1602, is connected with resistance R 3 and resistance R 4 on described LCD MODULE LCD1602.
Referring to Fig. 1, portable relay protection fixed value setting emulation training checking device entirety of the present invention is divided into upper and lower two parts, and top is divided into relay protection fixed value setting emulation module, and bottom is divided into relay protection constant value evaluation module.
It is different patterns that top is divided according to different relay protection type designs.This design can simulated field real protection device key arrangement, makes device user of service can in training, be familiar with the key arrangement of protective device, better reaches the effect of training.Fig. 2 is an embodiment of the front panel of upper shell, and left side is LCDs, and right side is for controlling button, and button is circular, and left side, centre and right side arrange respectively 2,5 and 2 buttons, add up to 9 buttons.Another embodiment of the front panel of upper shell in Fig. 3,, left side is LCDs, right button district button is square button, is nine grids and arranges.9 buttons realize respectively on protective relaying device " on ", D score, " left side ", " right side ", " adding ", " subtracting ", " confirmation ", " cancellation ", " area code " push button function.LCDs is LCD MODULE LCD1602, is of a size of 16*4.Relay protection fixed value setting simulation operations partial circuit, adopts ATMEGA16L single-chip microcomputer to control, and uses the 1602 type LCD display of 16*4 to show.
Below relay protection constant value emulation module, have an interface, to realize the function being connected with the relay protection constant value evaluation module of lower house, the module interface front line of each different model defines, connecter type is all identical.
The functions such as the latter half relay protection constant value evaluation module carries out relay protection constant value generation, contrast, the analysis of fixed value adjusting Historical Results.This module is universal design, and different relay protection constant value emulation modules all can be connected with this module and realize relay protection fixed value setting emulation check function.Top is interface metal needle.Carry out data interaction by interface and the first half Protection simulation module.Touch display screen, realizes definite value in fixed value adjusting emulation training checking system and generates and examination.Relay protection constant value generates and examination partial devices adopts LM3S615 model ARM framework; relay protection fixed value setting simulation operations part carries out with relay protection constant value generating portion exchanges data is connected ATMEGA16L by the U1Rx of LM3S615 serial ports with U1Tx, exchanges the value data of adjusting.
Fig. 6 and 7 power circuit, from outside access 5V power supply, for internal circuit provides 5V and two kinds of voltages of 3.3V.
Portable relay protection fixed value setting emulation training device of the present invention, comprises housing, the accumulator that is provided with control circuit within described housing and is used to portable relay protection fixed value setting emulation training device to power; Described housing comprises upper shell and lower house.Upper-lower casing forms a portable body structure together, is easy to carry.Simultaneously with power interface; enclosure interior is provided with accumulator; cannot external power supply in the situation that; also can use; thereby the training that can make relay protection fixed value setting emulation is very convenient quick; improve training efficiency, reduced the cost of training, improved on-the-spot fixed value adjusting one-time success rate.
Although the present invention is illustrated hereinbefore according to preferred embodiment, this does not represent that scope of the present invention is confined to above-mentioned structure, if by structure that the claims in the present invention covered all within protection domain.Those skilled in the art are reading the equivalent substitution structure that can develop easily after above-mentioned explanation, and equalization variation and the modification under the spirit that does not depart from the present invention and scope, done, within all should being covered by protection domain of the present invention.

Claims (7)

1. portable relay protection fixed value setting emulation training device, it is characterized in that, comprise housing (1), the accumulator (4) that is provided with control circuit within described housing (1) and is used to portable relay protection fixed value setting emulation training device to power; Described housing (1) comprises upper shell (2) and lower house (3); On the front panel of described upper shell (2), be provided with LCDs (5), supervisory keyboard (6) and ISP (In-System Programming, online programmable) download interface (7); On the front panel of described lower house (3), be provided with touch-screen (8), JTAG (Joint Test Action Group; Joint test working group) download mouthful (9) and a charging inlet (10);
Described control circuit comprises single chip circuit, jtag interface circuit, power circuit, microcontroller U1, ISP interface circuit and driving circuit; Described microcontroller U1 is connected with multiple buttons (11) of described supervisory keyboard, and described microcontroller U1 is also connected with external crystal oscillation circuit and reset circuit; Described microcontroller U1 is also connected with ISP interface chip J2.
2. portable relay protection fixed value setting emulation training device according to claim 1, it is characterized in that, (as shown in Figure 4) described single chip circuit comprises single-chip microcomputer LM3S615, reset chip CAT811R, reset key S10, resistance R 5, capacitor C 5~C11, crystal oscillator Y2; The VCC termination external power supply of described reset chip CAT811R, one end of described reset key S10 is connected with the MR end of described reset chip CAT811R, the other end ground connection of described reset key S10; The RST end of described reset chip CAT811R is connected with the RST end of described single-chip microcomputer LM3S615; One end of described resistance R 5 is connected with the RST end of described reset chip CAT811R, the other end ground connection of described resistance R 5;
The two ends of described capacitor C 5~C11 are all connected with described single-chip microcomputer LM3S615; The two ends of described crystal oscillator Y2 are also all connected with described single-chip microcomputer LM3S615, and one end of one end of described capacitor C 10 and capacitor C 11 is connected on the two ends of crystal oscillator Y2, the other end ground connection of the other end of described capacitor C 10 and capacitor C 11.
3. portable relay protection fixed value setting emulation training device according to claim 1, it is characterized in that, the resistor group RP1 that (as shown in Figure 5) described jtag interface circuit comprises JTAG chip and is 10K by 8 resistances resistance in parallel forms between two; Described resistor group RP1 is connected with described JTAG chip.
4. portable relay protection fixed value setting emulation training device according to claim 1, is characterized in that, described power circuit comprises power interface circuit and mu balanced circuit; Described power interface circuit comprises power plug joint J1, capacitor C 3, light emitting diode D2 and resistance R 2; The two ends of described capacitor C 3 are connected on two splicing ears of described power plug joint J1; One end of described resistance R 2 is connected with one end of described capacitor C 3, and the other end of described resistance R 2 is connected with the other end (GND end) of described capacitor C 3 by described light emitting diode D2;
Voltage stabilizing chip SPX1117M3-3.3, electrochemical capacitor C12, electrochemical capacitor C13 and the voltage stabilizing diode D3 of described mu balanced circuit comprises exportable+3.3V voltage; The positive pole of described voltage stabilizing diode D3 is connected with+5V power supply, and the negative pole of described voltage stabilizing diode D3 is connected to after being connected with the positive pole of described electrochemical capacitor C12 on the Vin end of voltage stabilizing chip SPX1117M3-3.3; The Vout end of the positive pole of described electrochemical capacitor C13 and voltage stabilizing chip SPX1117M3-3.3 is connected, and the negative pole of described electrochemical capacitor C12 and C13 is all connected on the GND end of voltage stabilizing chip SPX1117M3-3.3 also ground connection.
5. portable relay protection fixed value setting emulation training device according to claim 1, is characterized in that, described microcontroller U1 is ATMEGA16L; Multiple buttons of described supervisory keyboard comprise button S1~S9; Described button S1~S9 is all connected with described microcontroller U1;
Described external crystal oscillation circuit comprises capacitor C 1, capacitor C 2 and crystal oscillator Y1; The two ends of described crystal oscillator Y1 are all connected with described microcontroller U1; One end of one end of described capacitor C 1 and capacitor C 2 is connected on the two ends of crystal oscillator Y2, the other end ground connection of the other end of described capacitor C 1 and capacitor C 2;
Described reset circuit comprises reset key S0, capacitor C 4, resistance R 1 and diode D1; One end ground connection after described reset key S0 and capacitor C 4 are in parallel, the other end after described reset key S0 is in parallel with capacitor C 4 is connected with the RESET of described microcontroller U1 end; One end be connected+5V power supply after described resistance R 1 is in parallel with diode D1, the other end after described resistance R 1 is in parallel with diode D1 is connected with the RESET of described microcontroller U1 end.
6. portable relay protection fixed value setting emulation training device according to claim 1, is characterized in that, described driving circuit comprises touch-screen control chip ADS7846, capacitor C 14, capacitor C 15, resistance R 6; Described capacitor C 14, capacitor C 15, resistance R 6 are all connected with described touch-screen control chip ADS7846, and described touch-screen is connected with described touch-screen control chip ADS7846 and is driven and controlled by touch-screen control chip ADS7846.
7. portable relay protection fixed value setting emulation training device according to claim 1; it is characterized in that; (as shown in figure 13), described LCDs comprised LCD MODULE LCD1602, was connected with resistance R 3 and resistance R 4 on described LCD MODULE LCD1602.
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CN106297510A (en) * 2016-11-02 2017-01-04 中国石油大学胜利学院 Relay protection based on 36V voltage and the portable simulator of secondary circuit
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CN203838937U (en) * 2014-05-28 2014-09-17 国家电网公司 Portable relay protection setting value setting simulation training apparatus

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106297510A (en) * 2016-11-02 2017-01-04 中国石油大学胜利学院 Relay protection based on 36V voltage and the portable simulator of secondary circuit
CN108808619A (en) * 2018-06-11 2018-11-13 芜湖超源力工业设计有限公司 A kind of relay protection fixed value setting replicating machine

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