CN106018997A - Switching-in quantity circuit for optical digital relay protection tester detection - Google Patents
Switching-in quantity circuit for optical digital relay protection tester detection Download PDFInfo
- Publication number
- CN106018997A CN106018997A CN201610312900.9A CN201610312900A CN106018997A CN 106018997 A CN106018997 A CN 106018997A CN 201610312900 A CN201610312900 A CN 201610312900A CN 106018997 A CN106018997 A CN 106018997A
- Authority
- CN
- China
- Prior art keywords
- resistance
- input
- relay protection
- reverser
- digital relay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The invention relates to a switching-in quantity circuit for optical digital relay protection tester detection. A switching-in quantity input port is connected with one end of a high-power resistor, the other end of the high-power resistor R1 is connected with the input end of a phase inverter (as shown in the appended drawings), and the output end of the phase inverter is connected with the input end of a DSP. The circuit between the high-power resistor and the phase inverter is connected with a voltage regulator tube, and the output end of the voltage regulator tube is connected with the input end of the DSP. The output end of the voltage regulator tube is further connected with a switching-in quantity output port. The input end of the phase inverter is connected with a power voltage. A high-resistance resistor is connected in series between a power voltage input end and the phase inverter. The switching-in quantity circuit can be used to measure the switching-out action time of an optical digital relay protection tester. The operation is convenient, and the measurement accuracy is high. The measurement efficiency is improved.
Description
Technical field
The invention belongs to electric energy metrical field, relate to instrument and meter and electrotechnics, especially a kind of light digital relay protection tester
Intake circuit is used in detection.
Background technology
Light digital relay protection tester carries out action by switching value, and its movement time can be measured by detection device.Light
The intake of the amount of the outputing correspondence detection device of digital relay protection tester, lacks at present for light digital relay protection tester
Detection intake carries out the device of motion time measurement.
Summary of the invention
In place of it is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of rational in infrastructure, esy to use, safe and reliable,
Carry high efficiency smooth digital relay protection tester detection intake circuit.
The present invention solves it and technical problem is that and take techniques below scheme to realize:
Intake circuit is used in a kind of light digital relay protection tester detection, it is characterised in that: the amount of outputing input port connects big merit
One end of rate resistance, the other end of this high-power resistance connects the input having phase inverter, the reverser shown in accompanying drawing, reversely
The outfan of device connects DSP input；Circuit between high-power resistance with reverser is connected a stabilivolt, and stabilivolt exports
End connects DSP input；The outfan of stabilivolt is also associated with the amount of an outputing output port；Input at reverser connects
It is connected to supply voltage, between power voltage input terminal and reverser, is in series with a high resistance measurement.
And, the resistance of high-power resistance is 20k Ω, and the resistance of high resistance measurement is 510k Ω.
And, between reverser and DSP input, it is in series with a 1k Ω resistance.
And, stabilivolt outfan connects one end of 2k Ω resistance, and the other end of 2k Ω resistance connects DSP input.
And, connecting at inverter output and have the input of another reverser, the outfan of this reverser connects has a straight cutting even
Connect device.
Advantages of the present invention and good effect be:
The present invention can be used for measuring the light digital relay protection tester amount of outputing movement time, easy to operate, measures accurately
Degree height, can promote measurement efficiency.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present invention.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings and by specific embodiment, and following example are illustrative, no
It is determinate, it is impossible to limit protection scope of the present invention with this.
Intake circuit is used in a kind of light digital relay protection tester detection, sees shown in accompanying drawing, and the amount of outputing input port IN_+ is even
Connecing one end of high-power resistance R1, the resistance of high-power resistance R1 selects the other end of 20k Ω, this high-power resistance R1 to connect
Having the input of phase inverter, this reverser refers to the 74HC04 reverser U54A shown in accompanying drawing, and the outfan of reverser connects
DSP input DSP_IN；Circuit between high-power resistance R1 and reverser is connected a stabilivolt D1, stabilivolt outfan
Connecting one end of 2k Ω resistance R208, the other end of 2k Ω resistance connects DSP input；The outfan of stabilivolt is also associated with
One amount of outputing output port IN_-；
Between reverser and DSP input, it is in series with a 1k Ω resistance R207 carries out voltage stabilizing.
In order to measuring when the amount of outputing off-state, the input at reverser connects supply voltage VCC, and VCC is defeated
Entering and be in series with a high resistance measurement R2 between end and reverser, the resistance of high resistance measurement R2 selects 510k Ω.
Connecting at inverter output and have the input of another reverser, this phase inverter refers to 74HC04 reverser shown in the drawings
U54B, the outfan of this reverser connects socket, connector CON4 always, and this straight cutting adapter is provided with multiple port, such as accompanying drawing institute
D5V port, IN 1+ port and the IN 1-port shown.
During measurement:
The high level of intake is inputted by input port IN_+, and voltage can be up to 200V, resistance R1 and select high-power resistance,
Flow through the electric current of stabilivolt D1 just for about 10mA, it is ensured that stabilivolt normally works.When IN_+ port input high level,
The input of 74HC04 phase inverter U1A is high level, and its outfan just input DSP_IN for low level, i.e. DSP is just
Low level.Otherwise, if IN_+ input low level, output to DSP just for high level.
The amount of outputing of light digital relay protection tester can also be off the state of Guan Bi, when the amount of outputing is off-state, by
The high level that VCC provides makes the input of phase inverter U1A be high level, then the input DSP_IN of DSP is the most just for low electricity
Flat；When the amount of outputing is closure state, because resistance R2 resistance is far longer than the resistance of R1, the input of phase inverter after dividing potential drop
End is low level, and the input of DSP is just for high level.
Although disclosing embodiments of the invention and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: not
Departing from the spirit and scope of the present invention, various replacements, to change and modifications be all possible, therefore, and the scope of the present invention not office
It is limited to embodiment and accompanying drawing disclosure of that.
Claims (5)
1. intake circuit is used in a light digital relay protection tester detection, it is characterised in that: the amount of outputing input port connects big
One end of power resistor, the other end of this high-power resistance connects the input having phase inverter, the reverser shown in accompanying drawing, instead
DSP input is connected to the outfan of device；Circuit between high-power resistance with reverser is connected a stabilivolt, and stabilivolt is defeated
Go out end and connect DSP input；The outfan of stabilivolt is also associated with the amount of an outputing output port；Input at reverser
Connect and have supply voltage, between power voltage input terminal and reverser, be in series with a high resistance measurement.
Smooth digital relay protection tester detection intake circuit the most according to claim 1, it is characterised in that: big merit
The resistance of rate resistance is 20k Ω, and the resistance of high resistance measurement is 510k Ω.
Smooth digital relay protection tester detection intake circuit the most according to claim 1, it is characterised in that: instead
To being in series with a 1k Ω resistance between device and DSP input.
Smooth digital relay protection tester detection intake circuit the most according to claim 1, it is characterised in that: voltage stabilizing
Pipe outfan connects one end of 2k Ω resistance, and the other end of 2k Ω resistance connects DSP input.
Smooth digital relay protection tester detection intake circuit the most according to claim 1, it is characterised in that: instead
Connecting to device outfan and have the input of another reverser, the outfan of this reverser connects socket, connector always.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610312900.9A CN106018997A (en) | 2016-05-12 | 2016-05-12 | Switching-in quantity circuit for optical digital relay protection tester detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610312900.9A CN106018997A (en) | 2016-05-12 | 2016-05-12 | Switching-in quantity circuit for optical digital relay protection tester detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106018997A true CN106018997A (en) | 2016-10-12 |
Family
ID=57100160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610312900.9A Pending CN106018997A (en) | 2016-05-12 | 2016-05-12 | Switching-in quantity circuit for optical digital relay protection tester detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106018997A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201830235U (en) * | 2010-09-20 | 2011-05-11 | 河南辉煌科技股份有限公司 | Switching value stabilizing output circuit |
| CN102169163A (en) * | 2010-12-30 | 2011-08-31 | 上海申瑞电力科技股份有限公司 | Alternating-current direct-current adaptive switching value collecting circuit and method |
| CN202221520U (en) * | 2011-07-21 | 2012-05-16 | 常州工学院 | Switching value output signal monitoring device of sensor |
| CN202522676U (en) * | 2011-12-16 | 2012-11-07 | 陕西千山航空电子有限责任公司 | Switching value general acquisition circuit |
| CN104407526A (en) * | 2014-10-28 | 2015-03-11 | 陕西千山航空电子有限责任公司 | Intelligent switching value acquisition circuit |
-
2016
- 2016-05-12 CN CN201610312900.9A patent/CN106018997A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201830235U (en) * | 2010-09-20 | 2011-05-11 | 河南辉煌科技股份有限公司 | Switching value stabilizing output circuit |
| CN102169163A (en) * | 2010-12-30 | 2011-08-31 | 上海申瑞电力科技股份有限公司 | Alternating-current direct-current adaptive switching value collecting circuit and method |
| CN202221520U (en) * | 2011-07-21 | 2012-05-16 | 常州工学院 | Switching value output signal monitoring device of sensor |
| CN202522676U (en) * | 2011-12-16 | 2012-11-07 | 陕西千山航空电子有限责任公司 | Switching value general acquisition circuit |
| CN104407526A (en) * | 2014-10-28 | 2015-03-11 | 陕西千山航空电子有限责任公司 | Intelligent switching value acquisition circuit |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |