CN208044053U - Portable sound control mutual inductor experimental rig - Google Patents
Portable sound control mutual inductor experimental rig Download PDFInfo
- Publication number
- CN208044053U CN208044053U CN201820299966.3U CN201820299966U CN208044053U CN 208044053 U CN208044053 U CN 208044053U CN 201820299966 U CN201820299966 U CN 201820299966U CN 208044053 U CN208044053 U CN 208044053U
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- CN
- China
- Prior art keywords
- current
- winding part
- audio
- limiting resistance
- mutual inductor
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- 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.)
- Expired - Fee Related
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Abstract
The utility model is related to a kind of Portable sound control mutual inductor experimental rigs.Its main feature is that：Including first winding part and secondary winding part, wherein first winding part includes voice-frequency signal receiver, audio-switch one end of the voice-frequency signal receiver connects one end of single-pole three-throw switch, and the other end of the audio-switch is connect by concatenated first current-limiting resistance, DC power supply with the other end of aforementioned single-pole three-throw switch respectively；Wherein secondary winding part includes audio emitter, further includes single-pole double-throw switch (SPDT), and one end of the single-pole double-throw switch (SPDT) is connected by concatenated second current-limiting resistance, milliammeter with light emitting diode group.It carries out manually controlling output test test proves that utility model device can not only substitute original polarity test device, but also the polarity test problem of current transformer and terminal box not at same place can be solved in the way of this equipment audio output.
Description
Technical field
The utility model is related to a kind of Portable sound control mutual inductor experimental rigs.
Background technology
All it is many times current transformer and terminal box at present at current transformer connection inspection and polarity test scene
Apart there is a distance.At the scene in CT wiring checks and polarity test, when mutual inductor and far convergence control cabinet (terminal box), experiment
Personnel coordinate difficulty, and the wiring time before test is longer, and the artificial possibility for differentiating mistake increases, the labour of tester
Intensity is also very big.
Utility model content
The purpose of this utility model is to provide a kind of Portable sound control mutual inductor experimental rig, can reduce commissioning staff's
Labor intensity, reduction debugging process is to improve test accuracy and working efficiency.
A kind of Portable sound control mutual inductor experimental rig, is particular in that：Including first winding part and it is secondary around
Group part, wherein first winding part includes voice-frequency signal receiver, audio-switch one end order of the voice-frequency signal receiver
One end of three throw switch of knife, and the other end of the audio-switch is respectively by concatenated first current-limiting resistance, DC power supply with before
State the other end connection of single-pole three-throw switch；Wherein secondary winding part includes audio emitter, further includes single-pole double-throw switch (SPDT),
One end of the single-pole double-throw switch (SPDT) is connected by concatenated second current-limiting resistance, milliammeter with light emitting diode group.
Wherein the first current-limiting resistance and the second current-limiting resistance are adjustable current-limiting resistance.
Wherein light emitting diode group includes reverse parallel connection red light emitting diodes together and a green emitting
Diode.
Test proves that utility model device can both substitute original polarity test device manually control it is defeated
Go out test, and can be by this equipment audio output in the way of, solution current transformer and terminal box be not at same place
Polarity test problem.The utility model is related to the wiring check of current transformer and polarity tests, keep test job more comprehensive
Accurately, the labor intensity for reducing commissioning staff reduces debugging process；Not only high test accuracy had been put forward, but also has shortened test
Time.The utility model solves in live CT wiring checks and polarity test, and mutual inductor and convergence control cabinet (terminal box) are far
When, the difficult problem of testing crew cooperation；Shorten the wiring time before test, reduce it is artificial differentiate mistake because
Element reduces the labor intensity of tester；Not only high test accuracy had been put forward, but also has shortened the time of test；It can replace completely
For existing scattered polarity test equipment.
Description of the drawings
Attached drawing 1 is the circuit theory schematic diagram of the utility model；
Attached drawing 2 is the circuit theory schematic diagram of the utility model.
Specific implementation mode
A kind of Portable sound control mutual inductor experimental rig, including first winding part and secondary winding part, wherein once
Windings section includes voice-frequency signal receiver, and audio-switch one end of the voice-frequency signal receiver connects the one of single-pole three-throw switch
End, and the other end of the audio-switch passes through concatenated first current-limiting resistance, DC power supply and aforementioned single-pole three-throw switch respectively
The other end connection；Wherein secondary winding part includes audio emitter, and the transmitter is independently of the circuit part, this audio letter
It number is necessary for the sound of fixed frequency and wavelength, can be connect with audio signal by the transmitter fixation sound that either human hair go out
It receives device to match, further includes single-pole double-throw switch (SPDT) to achieve the purpose that remote correct control acoustic control node KG3 actions, it should
One end of single-pole double-throw switch (SPDT) is connected by concatenated second current-limiting resistance, milliammeter with light emitting diode group.
Wherein the first current-limiting resistance and the second current-limiting resistance are adjustable current-limiting resistance, light emitting diode group include it is reversed simultaneously
The red light emitting diodes and green LED being linked togather.
As shown in Figure 1, E is DC12V rechargeable batteries, KG1 is power switch, and RX1 is adjustable current-limiting resistance, and KG2 is single
Three throw switch of knife, common end are connected with one end of RX1, other three connecting terminals are respectively at A, B, C threephase current transformer
The P1 polar ends of first winding are connected, and are voice-frequency signal receiver for selecting A, B, C three-phase, R3, and KG3 is audio-switch, when
Instantaneous make delay disconnects after voice-frequency signal receiver receives audio signal.
As shown in Fig. 2, K1 is multicircuit switch, K2 is single-pole double-throw switch (SPDT), and common end is connected with one end of RX2,
Other two connecting terminals are connected with S1, S2 tap of secondary winding in current transformer respectively, can select current transformer
No-load voltage ratio, RX2 are adjustable current-limiting resistance, and mA is milliammeter, and T3 is audio emitter, and G1 is green LED, and R1 is red
Light emitting diode.
The application method and operation principle of the utility model be：
Mutual inductor first winding equipment component mainly realizes that the primary partially manual switching of mutual inductor is separate and receives audio letter
Number function, after powering on by the control of audio-switch KG3 can to the instantaneous Injection Current of mutual inductor first winding, to
Secondary side induces electric current.
Whether mutual inductor secondary winding equipment component is correct mainly for detection of the polarity of mutual inductor, using milliammeter and two
Whether the polarity that light emitting diode can obviously reliably detect out mutual inductor is correct.Such as when mutual inductor secondary winding is
" ﹢ " polarity chron, milliampere list index is first just to the rear reverse-biased, while the light emitting diode of green is first bright, bright after red light emitting diodes；
When the light emitting diode elder generation that mutual inductor secondary winding is "-" polarity chron, positively biased after milliampere list index is first reverse-biased, while red color
It is bright, it is bright after green LED；Five different windings that each phase can be switched by multicircuit switch K1 simultaneously, work as electric current
Switching can be realized when mutual inductor band tap by single-pole double-throw switch (SPDT) K2, T1 is audio emitter, independently of the circuit part,
This audio signal is necessary for the sound of fixed frequency and wavelength, can be by the transmitter fixation sound that either human hair goes out, with sound
Frequency signal receiver matches, to achieve the purpose that remote correct control acoustic control node KG3 actions.
Claims (3)
1. a kind of Portable sound control mutual inductor experimental rig, it is characterised in that：Including first winding part and secondary winding part,
Wherein first winding part includes voice-frequency signal receiver, and audio-switch one end of the voice-frequency signal receiver connects single-pole three throw and opens
One end of pass, and the other end of the audio-switch passes through concatenated first current-limiting resistance, DC power supply and aforementioned hilted broadsword three respectively
The other end of throw switch connects；Wherein secondary winding part includes audio emitter, further includes single-pole double-throw switch (SPDT), and the hilted broadsword is double
One end of throw switch is connected by concatenated second current-limiting resistance, milliammeter with light emitting diode group.
2. Portable sound control mutual inductor experimental rig as described in claim 1, it is characterised in that：Wherein the first current-limiting resistance and
Second current-limiting resistance is adjustable current-limiting resistance.
3. Portable sound control mutual inductor experimental rig as described in claim 1, it is characterised in that：Wherein light emitting diode group packet
Include reverse parallel connection red light emitting diodes together and a green LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820299966.3U CN208044053U (en) | 2018-03-02 | 2018-03-02 | Portable sound control mutual inductor experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820299966.3U CN208044053U (en) | 2018-03-02 | 2018-03-02 | Portable sound control mutual inductor experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208044053U true CN208044053U (en) | 2018-11-02 |
Family
ID=63950445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820299966.3U Expired - Fee Related CN208044053U (en) | 2018-03-02 | 2018-03-02 | Portable sound control mutual inductor experimental rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208044053U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327016A (en) * | 2020-11-05 | 2021-02-05 | 国网湖北省电力有限公司宜昌供电公司 | Current transformer test wire box |
| CN112415440A (en) * | 2020-11-26 | 2021-02-26 | 国网天津市电力公司 | Full-automatic polarity tester of three-phase alternating current loop mutual inductor group |
-
2018
- 2018-03-02 CN CN201820299966.3U patent/CN208044053U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327016A (en) * | 2020-11-05 | 2021-02-05 | 国网湖北省电力有限公司宜昌供电公司 | Current transformer test wire box |
| CN112415440A (en) * | 2020-11-26 | 2021-02-26 | 国网天津市电力公司 | Full-automatic polarity tester of three-phase alternating current loop mutual inductor group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181102 Termination date: 20200302 |