CN105974194A - Secondary equipment for monitoring partial discharge and temperature monitoring device - Google Patents
Secondary equipment for monitoring partial discharge and temperature monitoring device Download PDFInfo
- Publication number
- CN105974194A CN105974194A CN201610511041.6A CN201610511041A CN105974194A CN 105974194 A CN105974194 A CN 105974194A CN 201610511041 A CN201610511041 A CN 201610511041A CN 105974194 A CN105974194 A CN 105974194A
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- Prior art keywords
- voltage
- circuit
- outfan
- current
- input module
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
Abstract
The invention discloses secondary equipment for monitoring a partial discharge and temperature monitoring device. The secondary equipment comprises a control module, a voltage signal input module and a current signal input module, wherein the control module comprises a singlechip, and the singlechip is connected with a reset circuit, a crystal oscillation clock and a display; the voltage signal input module comprises a voltage transformer, a first filter circuit, a waveform conversion circuit, and a first voltage comparison and voltage range conversion circuit; and the current signal input module comprises a current transformer, a second filter circuit, a waveform conversion circuit, and a second voltage comparison and current range conversion circuit. The discharge quantity in the partial discharge and temperature monitoring device can be monitored via the equipment, and then whether the electric quantity of the monitoring device meets the requirement is judged; and data can be intuitively and accurately read via the display.
Description
Technical field
The present invention relates to power system monitoring equipment technical field, particularly to one to shelf depreciation and temperature
The secondary device of monitoring device monitoring.
Background technology
Power system is caused bigger injury due to shelf depreciation and temperature by power system.In prior art
Occur in that the monitoring device that power system carries out temperature monitoring and shelf depreciation, this equipment are applied to electric power
In system, the safety to power system serves significant role, decreases and causes because electric power facility damages
Disaster, but this monitoring device will be aging and break down after using a period of time, it is impossible to normally work,
Such that it does not reach to monitor the purpose of power system.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of shelf depreciation and device for detecting temperature carries out electricity prison
The secondary device surveyed.
In order to solve above-mentioned technical problem, the technical scheme is that shelf depreciation and temperature are supervised by one
Survey the secondary device of device monitoring, input mould including control module, voltage signal input module and current signal
Block；Described control module, including single-chip microcomputer, on described single-chip microcomputer connect have reset circuit, crystal oscillator clock and
Display；Described voltage signal input module, including voltage transformer, the first filter circuit, waveform conversion
Relatively and voltage range change-over circuit, described voltage transformer connects described first filtering for circuit, the first voltage ratio
The input of circuit, the outfan of described first filter circuit connect described waveform translation circuit, described first
Voltage ratio is compared with the input with described voltage range change-over circuit, described waveform translation circuit, described first electricity
Pressure ratio is connected on described single-chip microcomputer compared with the outfan with described voltage range change-over circuit；Described current signal
Input module, including current transformer, the second filter circuit, waveform translation circuit, the second voltage ratio relatively and
Current range change-over circuit, described current transformer connects the input of described second filter circuit, and described the
The outfan of two filter circuits is connected to described waveform translation circuit, described second voltage ratio relatively and described electric current
The input of range swithching circuit, described waveform translation circuit, described second voltage ratio are relatively and the described magnitude of current
The outfan of journey change-over circuit is connected on described single-chip microcomputer.
Further, described waveform translation circuit arranges one, described voltage signal input module and described electricity
The first filter circuit and the second filter circuit in stream signal input module are connected to described waveform translation circuit
Input.
Further, described waveform translation circuit includes an electric current connecting described current signal input module
Waveform changing circuit and a voltage waveform change-over circuit connecting described voltage signal input module.
Further, described voltage waveform change-over circuit include being connected with in turn the first voltage comparable chip,
One phase inverter and resistance R3, the outfan of described first voltage comparable chip connects the defeated of described first phase inverter
Going out end, the outfan of described first phase inverter connects the outfan of described resistance R3, and described resistance R3's is defeated
Going out end and connect described single-chip microcomputer, the positive pole of described first voltage comparable chip connects described by resistance R1
Voltage input module, the minus earth of described first voltage comparable chip.
Further, described current waveform change-over circuit include being connected with in turn the second voltage comparable chip,
Second phase inverter, computing chip and resistance R5, the outfan of described second voltage comparable chip connects described the
The input of two phase inverters, the outfan of described second phase inverter connects the input of described computing chip, institute
The outfan stating computing chip connects the input of described resistance R5, and the input of described resistance R5 connects institute
Stating single-chip microcomputer, the positive pole of described second voltage comparable chip connects described current signal input mould by resistance R4
Block, the minus earth of described second voltage comparable chip, another outfan of described computing chip connects institute
Stating voltage waveform change-over circuit, contact is between described first phase inverter and described resistance R3.
Further, described voltage range change-over circuit includes voltage follower, half-wave rectified current and filtering
Circuit, also includes the voltage comparator being connected with described single-chip microcomputer.
Further, described current range change-over circuit includes voltage follower, half-wave rectified current and filtering
Circuit, also includes the voltage comparator being connected with described single-chip microcomputer.
What the employing technique scheme present invention obtained has the beneficial effect that can monitor local by this equipment puts
Discharge capacity in electricity and device for detecting temperature and then check whether monitoring device electricity meets the requirements, and is arranged
There is display, it is possible to intuitive and accurate carry out reading.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of structural representation to the secondary device that shelf depreciation and device for detecting temperature are monitored of the present invention
Figure；
Fig. 2 is the schematic diagram of waveform translation circuit of the present invention.
In figure: 1-voltage transformer, 2-the first filter circuit, 3-waveform translation circuit, 4-the first voltage ratio
Relatively, 5-voltage range change-over circuit, 6-single-chip microcomputer, 7-current transformer, 8-the second filter circuit, 9-the
Two voltage ratios relatively, 10-current range change-over circuit, 11-reset circuit, 12-crystal oscillator clock, 13-display,
14-current waveform change-over circuit, 15-voltage waveform change-over circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described further.At this it should be noted that
The explanation of these embodiments is adapted to assist in and understands the present invention, but be not intended that limitation of the invention.
As long as additionally, technical characteristic involved in each embodiment of invention described below is the most not
The conflict of composition just can be mutually combined.
In conjunction with accompanying drawing, 1,2 couples of present invention further describe, and make those skilled in the art preferably implement this
Invention, a kind of secondary device that shelf depreciation and device for detecting temperature are monitored of the present invention include control module,
Voltage signal input module and current signal input module.
Control module of the present invention includes single-chip microcomputer 6, and single-chip microcomputer 6 connects reset circuit 11, crystal oscillator clock
12 and display 13, reset circuit 11, with not resetting single-chip microcomputer 6, makes each depositor in single-chip microcomputer 6
In value become original state, display 13 is used for showing that electric quantity signal, single-chip microcomputer 6 select MSP430 mono-
Sheet machine, this Singlechip clock module is by high speed crystal agitator, low speed crystal oscillator.
Voltage signal input module of the present invention, including voltage transformer the 1, first filter circuit 2, waveform conversion
Circuit the 3, first voltage ratio relatively 4 and voltage range change-over circuit 5, voltage transformer 1 connects the first filtered electrical
The input on road 2, the outfan of the first filter circuit 2 connects waveform translation circuit the 3, first voltage ratio relatively 4
With the input of voltage range change-over circuit 5, waveform translation circuit the 3, first voltage ratio relatively 4 and voltage range
The outfan of change-over circuit 5 is connected on single-chip microcomputer 6.
Current signal input module of the present invention, including current transformer the 7, second filter circuit 8, waveform conversion
Circuit the 3, second voltage ratio relatively 9 and current range change-over circuit 10, current transformer 7 connects the second filtering
The input of circuit 8, the outfan of the second filter circuit 8 is connected to waveform translation circuit the 3, second voltage ratio
Relatively 9 and the input of current range change-over circuit 10, waveform translation circuit the 3, second voltage ratio relatively 9 and electricity
The outfan of flow journey change-over circuit 10 is connected on single-chip microcomputer 6.
Waveform translation circuit 3 of the present invention arranges one, voltage signal input module and current signal input module
In the first filter circuit 2 and the second filter circuit 8 be connected to the input of waveform translation circuit 3.Waveform
Translation circuit 3 includes a current waveform change-over circuit 14 connecting current signal input module and a connection
The voltage waveform change-over circuit 15 of voltage signal input module.Voltage waveform change-over circuit 15 includes being sequentially connected with
Having the first voltage comparable chip, the first phase inverter and resistance R3, the outfan of the first voltage comparable chip connects
The outfan of the first phase inverter, the outfan of the first phase inverter connects the outfan of resistance R3, resistance R3's
Outfan connects single-chip microcomputer 6, and the positive pole of the first voltage comparable chip connects voltage input module by resistance R1,
The minus earth of the first voltage comparable chip.Current waveform change-over circuit 14 includes being connected with the second voltage in turn
Comparable chip, the second phase inverter, computing chip and resistance R5, the outfan of the second voltage comparable chip connects
The input of the second phase inverter, the input of the outfan concatenation operation chip of the second phase inverter, computing chip
Outfan connect the input of resistance R5, the input of resistance R5 connects single-chip microcomputer 6, and the second voltage ratio is relatively
The positive pole of chip by resistance R4 connect current signal input module, the minus earth of the second voltage comparable chip,
Another outfan of computing chip connects voltage waveform change-over circuit 15, and contact is positioned at the first phase inverter and electricity
Between resistance R3.
Voltage range change-over circuit 5 of the present invention includes voltage follower, half-wave rectified current and filter circuit,
Also include the voltage comparator being connected with single-chip microcomputer.During work, voltage signal is through voltage follower and half-wave
Rectification and filter circuit become d. c. voltage signal, then are transferred in single-chip microcomputer 6 by voltage comparator.This
Invention current range change-over circuit 10 includes voltage follower, half-wave rectified current and filter circuit, also includes
The voltage comparator being connected with single-chip microcomputer.During work, current signal is converted to voltage signal through sampling resistor,
Voltage signal after conversion is becoming DC voltage letter through voltage follower and halfwave rectifier and filter circuit
Number, d. c. voltage signal is transported in single-chip microcomputer 6 by voltage comparator.
Above in association with accompanying drawing, embodiments of the present invention are explained in detail, but the invention is not restricted to described
Embodiment.For a person skilled in the art, in the situation without departing from the principle of the invention and spirit
Under, these embodiments are carried out multiple change, revises, replace and modification, still fall within the protection of the present invention
In the range of.
Claims (7)
1. the secondary device that shelf depreciation and device for detecting temperature are monitored, it is characterised in that: include control
Molding block, voltage signal input module and current signal input module,
Described control module, including single-chip microcomputer, on described single-chip microcomputer connect have reset circuit, crystal oscillator clock and
Display；
Described voltage signal input module, including voltage transformer, the first filter circuit, waveform translation circuit,
First voltage ratio relatively and voltage range change-over circuit, described voltage transformer described first filter circuit of connection
Input, the outfan of described first filter circuit connects described waveform translation circuit, described first voltage ratio
Compared with the input with described voltage range change-over circuit, described waveform translation circuit, described first voltage ratio are relatively
It is connected on described single-chip microcomputer with the outfan of described voltage range change-over circuit；
Described current signal input module, including current transformer, the second filter circuit, waveform translation circuit,
Second voltage ratio relatively and current range change-over circuit, described current transformer described second filter circuit of connection
Input, the outfan of described second filter circuit is connected to described waveform translation circuit, described second voltage
Compare and the input of described current range change-over circuit, described waveform translation circuit, described second voltage ratio
The relatively outfan with described current range change-over circuit is connected on described single-chip microcomputer.
A kind of secondary device that shelf depreciation and device for detecting temperature are monitored,
It is characterized in that: described waveform translation circuit arranges one, described voltage signal input module and described electric current
The first filter circuit and the second filter circuit in signal input module are connected to the defeated of described waveform translation circuit
Enter end.
A kind of secondary device that shelf depreciation and device for detecting temperature are monitored,
It is characterized in that: described waveform translation circuit includes a current wave connecting described current signal input module
Shape change-over circuit and a voltage waveform change-over circuit connecting described voltage signal input module.
A kind of secondary device that shelf depreciation and device for detecting temperature are monitored,
It is characterized in that: described voltage waveform change-over circuit include being connected with in turn the first voltage comparable chip, first
Phase inverter and resistance R3, the outfan of described first voltage comparable chip connects the output of described first phase inverter
End, the outfan of described first phase inverter connects the outfan of described resistance R3, the output of described resistance R3
End connects described single-chip microcomputer, and the positive pole of described first voltage comparable chip connects described electricity by resistance R1
Pressure input module, the minus earth of described first voltage comparable chip.
A kind of secondary device that shelf depreciation and device for detecting temperature are monitored,
It is characterized in that: described current waveform change-over circuit include being connected with in turn the second voltage comparable chip, second
Phase inverter, computing chip and resistance R5, the outfan of described second voltage comparable chip connects described second anti-
The input of phase device, the outfan of described second phase inverter connects the input of described computing chip, described fortune
The outfan calculating chip connects the input of described resistance R5, and the input of described resistance R5 connects described list
Sheet machine, the positive pole of described second voltage comparable chip connects described current signal input module by resistance R4,
The minus earth of described second voltage comparable chip, another outfan of described computing chip connects described electricity
Corrugating change-over circuit, contact is between described first phase inverter and described resistance R3.
A kind of secondary device that shelf depreciation and device for detecting temperature are monitored,
It is characterized in that: described voltage range change-over circuit includes voltage follower, half-wave rectified current and filtered electrical
Road, also includes the voltage comparator being connected with described single-chip microcomputer.
A kind of secondary device that shelf depreciation and device for detecting temperature are monitored,
It is characterized in that: described current range change-over circuit includes voltage follower, half-wave rectified current and filtered electrical
Road, also includes the voltage comparator being connected with described single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610511041.6A CN105974194B (en) | 2016-07-01 | 2016-07-01 | A kind of pair of shelf depreciation and the secondary device of temperature monitoring device monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610511041.6A CN105974194B (en) | 2016-07-01 | 2016-07-01 | A kind of pair of shelf depreciation and the secondary device of temperature monitoring device monitoring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105974194A true CN105974194A (en) | 2016-09-28 |
| CN105974194B CN105974194B (en) | 2018-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610511041.6A Active CN105974194B (en) | 2016-07-01 | 2016-07-01 | A kind of pair of shelf depreciation and the secondary device of temperature monitoring device monitoring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112311329A (en) * | 2019-12-21 | 2021-02-02 | 成都华微电子科技有限公司 | Low-power-consumption crystal oscillator circuit capable of starting oscillation rapidly |
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| CN2247346Y (en) * | 1995-09-22 | 1997-02-12 | 西安供电局 | Device for on-line monitoring transformer inner discharge |
| CN101430350A (en) * | 2007-11-08 | 2009-05-13 | 拓志光机电股份有限公司 | Electric power monitoring apparatus for real-time display of system power consumption |
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2247346Y (en) * | 1995-09-22 | 1997-02-12 | 西安供电局 | Device for on-line monitoring transformer inner discharge |
| CN101430350A (en) * | 2007-11-08 | 2009-05-13 | 拓志光机电股份有限公司 | Electric power monitoring apparatus for real-time display of system power consumption |
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| JP2013120096A (en) * | 2011-12-06 | 2013-06-17 | Nippon Soken Inc | Insulation inspection apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112311329A (en) * | 2019-12-21 | 2021-02-02 | 成都华微电子科技有限公司 | Low-power-consumption crystal oscillator circuit capable of starting oscillation rapidly |
| CN112311329B (en) * | 2019-12-21 | 2023-08-25 | 成都华微电子科技股份有限公司 | Low-power-consumption quick-starting crystal oscillator circuit |
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| Publication number | Publication date |
|---|---|
| CN105974194B (en) | 2018-12-28 |
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