CN206223934U - A kind of transforming plant DC electric power loop Graded coordination test device - Google Patents
A kind of transforming plant DC electric power loop Graded coordination test device Download PDFInfo
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- CN206223934U CN206223934U CN201621140741.0U CN201621140741U CN206223934U CN 206223934 U CN206223934 U CN 206223934U CN 201621140741 U CN201621140741 U CN 201621140741U CN 206223934 U CN206223934 U CN 206223934U
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Abstract
The utility model is related to technical field of electric power detection, a kind of especially transforming plant DC electric power loop Graded coordination test device, the voltage test points are electrically connected with control source module and current input module with current test point, the control source module is electrically connected at voltage transformer and current transformer with current input module, and voltage transformer is electrically connected with data acquisition module with current transformer, the data acquisition module is electrically connected with frequency-selecting amplification module, the frequency-selecting amplification module is electrically connected with multiple signals tracing module, microprocessing unit is electrically connected with data storage module, the microprocessing unit is also electrically connected with switch power module and wave tracer, and standard DC power supply waveform module is electrically connected at wave tracer.The utility model ensure that the accuracy of DC power supply circuit Graded coordination, and the security reliability to improving Operation of Electric Systems is significant.
Description
Technical field
The utility model is related to technical field of electric power detection, more particularly to a kind of transforming plant DC electric power loop Graded coordination
Test device.
Background technology
With the continuous progress of China's power industry, power system develops to super-pressure, Large Copacity direction, is these great Rong
Amount power equipment provides control, protection, signal, operation power, and the safe and reliable of straight-flow system, economical operation must just be mentioned
One new height.During normal operation, transformer station direct current system provides power switch for breaker, is relay protection and automatic dress
Put, communicate etc. and dc source is provided；During failure, particularly in the case of AC interruptions, transformer station direct current system is protected for relay
Shield and automatics, breaker close tripping operation, emergency lighting and provide safe and reliable transforming plant DC power supply, are power system relays
The basic guarantee of protection, automatics and breaker correct operation.
In transforming plant DC loop, fuse, breaker are that each outlet excessively stream of straight-flow system and short trouble are main
Protection element, can disconnect as feeder assembly supply network and isolation is used, and whether its loop Graded coordination is appropriate and upper and lower
Whether there is the selective incubation of protection, can be directly connected to be limited in the failure of system in minimum zone between level, this
To preventing system destruction, fault spread and main equipment badly damaged most important.Therefore a kind of transforming plant DC power supply is proposed
Loop Graded coordination test device.
Utility model content
The purpose of this utility model is and a kind of transforming plant DC for proposing in order to solve shortcoming present in prior art
Electric power loop Graded coordination test device.
To achieve these goals, the utility model employs following technical scheme：
Design a kind of transforming plant DC electric power loop Graded coordination test device, including tested dc source, microprocessor list
Unit and data induction module, voltage test points and current test point are provided with tested dc source, and data induction module includes
Control source module, current input module, voltage transformer and current transformer, the voltage test points and current test point point
Control source module and current input module are not electrically connected at, and the control source module is electrically connected with current input module
In voltage transformer and current transformer, and voltage transformer is electrically connected with data acquisition module with current transformer, institute
State data acquisition module and be electrically connected with frequency-selecting amplification module, the frequency-selecting amplification module is electrically connected with multiple signals and follows the trail of mould
Block, the multiple signals tracing module is electrically connected at microprocessing unit；
Microprocessing unit is electrically connected with data storage module and touch-screen, and the microprocessing unit is also electrically connected with out
Powered-down source module, standard DC power supply waveform module and wave tracer, and standard DC power supply waveform module is electrically connected at
Wave tracer, the microprocessing unit is electrically connected with alarm module and power source protective module, and power source protective module is electrical
It is connected to tested dc source.
Preferably, the multiple signals tracing module is electrically connected with frequency-selecting and filtering module, and frequency-selecting and filtering module is electrical
It is connected to frequency-selecting amplification module.
Preferably, the microprocessing unit is also electrically connected with fault detection module, and fault detection module is electrically connected with
In data storage module.
Preferably, it is provided with storage chip in the data storage module.
The utility model proposes a kind of transforming plant DC electric power loop Graded coordination test device, beneficial effect is：
The electric station DC electric power loop Graded coordination test device substantially increases the standard of detection by voltage and the double check of electric current
Exactness, fault detection module can carry out fault detect to detection means, serve the effect of protection device, it is therefore prevented that data are stored up
Can be filtered for the electric signal of frequency-selecting amplification module treatment by the loss of data in storing module, frequency-selecting and filtering module, so that
To stable pulse signal, it is ensured that the accuracy of DC power supply circuit Graded coordination, the safety to improving Operation of Electric Systems
Reliability is significant.
Brief description of the drawings
Fig. 1 be the utility model proposes a kind of transforming plant DC electric power loop Graded coordination test device system signal
Figure.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.
Reference picture 1, a kind of transforming plant DC electric power loop Graded coordination test device, including tested dc source, Wei Chu
Reason unit and data induction module, voltage test points and current test point, data induction module are provided with tested dc source
Including control source module, current input module, voltage transformer and current transformer.
Voltage test points are electrically connected with control source module and current input module with current test point, and voltage is defeated
Enter module and be electrically connected at voltage transformer and current transformer, and voltage transformer and current transformer with current input module
Data acquisition module is electrically connected with, data acquisition module is electrically connected with frequency-selecting amplification module, and frequency-selecting amplification module is electrical
Multiple signals tracing module is connected with, multiple signals tracing module is electrically connected at microprocessing unit, multiple signals tracing module
Frequency-selecting and filtering module is electrically connected with, and frequency-selecting and filtering module is electrically connected at frequency-selecting amplification module, it is mutual by voltage when using
Sensor is tested voltage test points and current test point on dc source with current transformer measurement, so as to pass data to number
According to acquisition module, by after the amplification of frequency-selecting amplification module, microprocessing unit being input to by multiple signals tracing module, by setting
, can be filtered for the electric signal of frequency-selecting amplification module treatment by the frequency-selecting and filtering module put, so as to obtain stable pulse letter
Number.
Microprocessing unit is electrically connected with data storage module and touch-screen, and microprocessing unit is also electrically connected with switch electricity
Source module, standard DC power supply waveform module and wave tracer, and standard DC power supply waveform module is electrically connected at waveform
Recorder, microprocessing unit is electrically connected with alarm module and power source protective module, and power source protective module be electrically connected at by
Dc source is surveyed, microprocessing unit is also electrically connected with fault detection module, and fault detection module is electrically connected at data storage
Storing module, is provided with storage chip in data storage module, when using, switch power module provides power supply supply, collects electricity
Pressure shows that standard DC power supply waveform module is then detection with current pulse signal by microprocessing unit on wave tracer
There is provided reference substance, the contrast between is pinpointed the problems, and microprocessing unit has been accomplished to standard DC power supply waveform module not
The control of same waveform, fault detection module can carry out fault detect to detection means, serve the effect of protection device, prevent
Loss of data in data storage module.
The above, only the utility model preferably specific embodiment, but protection domain of the present utility model is not
Be confined to this, any one skilled in the art in the technical scope that the utility model is disclosed, according to this practicality
New technical scheme and its utility model design are subject to equivalent or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (4)
1. a kind of transforming plant DC electric power loop Graded coordination test device, including tested dc source, microprocessing unit and number
According to induction module, voltage test points and current test point are provided with tested dc source, data induction module includes that voltage is defeated
Enter module, current input module, voltage transformer and current transformer, it is characterised in that：The voltage test points are surveyed with electric current
Pilot is electrically connected with control source module and current input module, and the control source module is electric with current input module
Property be connected to voltage transformer and current transformer, and voltage transformer is electrically connected with data acquisition module with current transformer
Block, the data acquisition module is electrically connected with frequency-selecting amplification module, and the frequency-selecting amplification module is electrically connected with multiple signals
Tracing module, the multiple signals tracing module is electrically connected at microprocessing unit；
Microprocessing unit is electrically connected with data storage module and touch-screen, and the microprocessing unit is also electrically connected with switch electricity
Source module, standard DC power supply waveform module and wave tracer, and standard DC power supply waveform module is electrically connected at waveform
Recorder, the microprocessing unit is electrically connected with alarm module and power source protective module, and power source protective module is electrically connected with
In tested dc source.
2. a kind of transforming plant DC electric power loop Graded coordination test device according to claim 1, it is characterised in that institute
State multiple signals tracing module and be electrically connected with frequency-selecting and filtering module, and frequency-selecting and filtering module is electrically connected at frequency-selecting and amplifies mould
Block.
3. a kind of transforming plant DC electric power loop Graded coordination test device according to claim 1, it is characterised in that institute
State microprocessing unit and be also electrically connected with fault detection module, and fault detection module is electrically connected at data storage module.
4. a kind of transforming plant DC electric power loop Graded coordination test device according to claim 1, it is characterised in that institute
State and storage chip is provided with data storage module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621140741.0U CN206223934U (en) | 2016-10-20 | 2016-10-20 | A kind of transforming plant DC electric power loop Graded coordination test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621140741.0U CN206223934U (en) | 2016-10-20 | 2016-10-20 | A kind of transforming plant DC electric power loop Graded coordination test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206223934U true CN206223934U (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621140741.0U Active CN206223934U (en) | 2016-10-20 | 2016-10-20 | A kind of transforming plant DC electric power loop Graded coordination test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966652A (en) * | 2016-10-20 | 2018-04-27 | 国网新疆电力公司疆南供电公司 | A kind of transforming plant DC electric power loop Graded coordination test device |
-
2016
- 2016-10-20 CN CN201621140741.0U patent/CN206223934U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966652A (en) * | 2016-10-20 | 2018-04-27 | 国网新疆电力公司疆南供电公司 | A kind of transforming plant DC electric power loop Graded coordination test device |
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