CN110907865A - Portable mutual inductor polarity tester - Google Patents
Portable mutual inductor polarity tester Download PDFInfo
- Publication number
- CN110907865A CN110907865A CN201911403762.5A CN201911403762A CN110907865A CN 110907865 A CN110907865 A CN 110907865A CN 201911403762 A CN201911403762 A CN 201911403762A CN 110907865 A CN110907865 A CN 110907865A
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- China
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- circuit
- emitting diode
- button switch
- light emitting
- inductance coil
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
Abstract
The invention discloses a portable mutual inductor polarity tester, which comprises a first button switch; a second push button switch; a first light emitting diode; a second light emitting diode; a mutual inductance coil; an ammeter; the first button switch and the second button switch are connected in series, a first light emitting diode and a second light emitting diode are arranged in a circuit of the first button switch and the second button switch, the wire end of the circuit is connected with the wire inlet end of the mutual inductance coil, and the wire outlet end of the mutual inductance coil is connected with the ammeter in series through a wire; the circuit is also connected with a built-in direct current power supply in parallel; the red light-emitting diode and the buzzer are used for giving out sound-light alarm, so that part of auxiliary electricity testing functions can be achieved, and the personal safety of testing personnel is ensured; the light can be as the auxiliary lighting instrument when wiring in the dark surrounds.
Description
Technical Field
The invention relates to the technical field of polarity test of transformers, in particular to a portable transformer polarity tester.
Background
When a current in one coil changes, an induced electromotive force is generated in the adjacent other coil, which is called a mutual inductance phenomenon. The mutual inductance phenomenon is a common electromagnetic induction phenomenon, and occurs not only between two coils wound on the same core, but also between any two circuits close to each other.
1. The existing instrument for testing the polarity of the mutual inductor has large volume; when the multifunctional flashlight is used, the flashlight is required to be matched for lighting, the working environment with poor light is met, and the wiring can be finished only by using an auxiliary lighting tool for lighting.
2. The polarity test of the mutual inductor needs to be in contact with the primary side (high-voltage side) of the equipment, a special electricity testing tool (such as a high-voltage electroscope) needs to be used for testing electricity, and if the equipment cannot be judged or is forgotten to judge whether the equipment is electrified, life injury accidents can be caused; the existing mutual inductor polarity tester uses a special loop test wire, and if the length of the test wire is less than the length of a test loop, the polarity test cannot be carried out.
Disclosure of Invention
The invention aims to provide a portable mutual inductor polarity tester to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a portable mutual inductor polarity tester comprises a first button switch; a second push button switch; a first light emitting diode; a second light emitting diode; a mutual inductance coil; an ammeter; the first button switch and the second button switch are connected in series, a first light emitting diode and a second light emitting diode are arranged in a circuit of the first button switch and the second button switch, the wire end of the circuit is connected with the wire inlet end of the mutual inductance coil, and the wire outlet end of the mutual inductance coil is connected with the ammeter in series through a wire; the circuit is also connected in parallel with a built-in direct current power supply.
Preferably, the circuit further comprises: a buzzer; a buzzer is arranged on a circuit between the second light-emitting diode and the wire inlet end of the mutual inductance coil; the buzzer is used for giving an alarm when in use.
Preferably, the circuit further comprises: an electroscope; an electroscope is arranged on a circuit between the buzzer and the wire inlet end of the mutual inductance coil; the electroscope is used for assisting in electroscopy.
Preferably, the circuit further comprises: an illuminating lamp; a control switch; the illuminating lamp and the control switch are mutually connected in series to form an illuminating circuit, and the illuminating circuit and the power supply are mutually connected in parallel.
Preferably, a power switch is arranged between the power supply and the circuit, and the power switch and the power supply are connected in series.
Compared with the prior art, the invention has the beneficial effects that:
1. the method can be suitable for measuring the polarity of the single mutual inductor and can also be used for measuring the polarity of the mutual inductor with the installed wiring, and the application range is wide; the first light emitting diode and the second light emitting diode indicate the on-off of the loop, so that the power is saved visually, the occurrence of wrong judgment is avoided, and the accuracy is high.
2. The red light-emitting diode and the buzzer are used for giving out sound-light alarm, so that part of auxiliary electricity testing functions can be achieved, and the personal safety of testing personnel is ensured; the light can be as the auxiliary lighting instrument when wiring in the dark surrounds.
Drawings
FIG. 1 is a schematic diagram of a circuit structure according to the present invention.
In the figure: K1-Power switch; k2-control switch; e-a built-in DC power supply; AN 1-first push button switch; AN 2-second push button switch; an L-lamp; LED 1-first light emitting diode; LED 2-a second light emitting diode; an FMQ-buzzer; YDQ-electroscope; UA-ammeter; p-wire inlet end; and an S-outlet terminal.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a portable mutual inductor polarity tester comprises a first button switch; a second push button switch; a first light emitting diode; a second light emitting diode; a mutual inductance coil; an ammeter; the first button switch and the second button switch are connected in series, a first light emitting diode and a second light emitting diode are arranged in a circuit of the first button switch and the second button switch, the wire end of the circuit is connected with the wire inlet end of the mutual inductance coil, and the wire outlet end of the mutual inductance coil is connected with the ammeter in series through a wire; the circuit is also connected in parallel with a built-in direct current power supply.
The circuit further comprises: a buzzer; an electroscope; a buzzer is arranged on a circuit between the second light-emitting diode and the wire inlet end of the mutual inductance coil; the buzzer is used for giving an alarm when in use; an electroscope is arranged on a circuit between the buzzer and the wire inlet end of the mutual inductance coil; the electroscope is used for assisting in electroscopy.
The circuit further comprises: an illuminating lamp; a control switch; the illuminating lamp and the control switch are mutually connected in series to form an illuminating circuit, and the illuminating circuit and the power supply are mutually connected in parallel; and a power switch is arranged between the power supply and the circuit, and the power switch and the power supply are connected in series.
The illuminating lamp is used for assisting in illumination when in use, and is convenient to observe when in use; the power supply uses a special rechargeable lithium battery.
The working principle is as follows: when the transformer polarity test circuit diagram is used, a power switch K1 is turned on during testing, a test circuit is connected, namely, the transformer polarity test can be completed by pressing a switch button AN, whether the circuit is conducted or not can be judged by a light emitting diode LED, the power switch K is turned on during testing through AN illuminating lamp, and the illumination function can be realized by closing a control switch K; the power switch K1 is turned on, the charged induction device can be started by pressing the switch button AN2, and the acousto-optic alarm function is realized through the buzzer FMQ and the light emitting diode LED 1.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a portable mutual-inductor polarity tester which characterized in that includes:
a first push button switch;
a second push button switch;
a first light emitting diode;
a second light emitting diode;
a mutual inductance coil;
an ammeter;
the first button switch and the second button switch are connected in series, a first light emitting diode and a second light emitting diode are arranged in a circuit of the first button switch and the second button switch, the wire end of the circuit is connected with the wire inlet end of the mutual inductance coil, and the wire outlet end of the mutual inductance coil is connected with the ammeter in series through a wire;
the circuit is also connected in parallel with a built-in direct current power supply.
2. The portable transformer polarity tester of claim 1, wherein the circuitry further comprises:
a buzzer;
a buzzer is arranged on a circuit between the second light-emitting diode and the wire inlet end of the mutual inductance coil;
the buzzer is used for giving an alarm when in use.
3. The portable transformer polarity tester of claim 1, wherein the circuitry further comprises:
an electroscope;
an electroscope is arranged on a circuit between the buzzer and the wire inlet end of the mutual inductance coil;
the electroscope is used for assisting in electroscopy.
4. The portable transformer polarity tester of claim 1, wherein the circuitry further comprises:
an illuminating lamp;
a control switch;
the illuminating lamp and the control switch are mutually connected in series to form an illuminating circuit, and the illuminating circuit and the power supply are mutually connected in parallel.
5. The portable mutual inductor polarity tester of claim 1, wherein: and a power switch is arranged between the power supply and the circuit, and the power switch and the power supply are connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911403762.5A CN110907865A (en) | 2019-12-31 | 2019-12-31 | Portable mutual inductor polarity tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911403762.5A CN110907865A (en) | 2019-12-31 | 2019-12-31 | Portable mutual inductor polarity tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110907865A true CN110907865A (en) | 2020-03-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911403762.5A Pending CN110907865A (en) | 2019-12-31 | 2019-12-31 | Portable mutual inductor polarity tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110907865A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112698239A (en) * | 2020-11-10 | 2021-04-23 | 国网山东省电力公司淄博供电公司 | Portable mutual inductor polarity tester |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH707218A2 (en) * | 2012-11-13 | 2014-05-15 | Eth Zürich Eth Transfer | Method for measuring inductance during measurement of magnetic flux density or magnetic saturation in e.g. inductive element, involves determining frequency of measurement voltage as measure of measured inductance |
| CN204832411U (en) * | 2015-07-31 | 2015-12-02 | 国网山东省电力公司淄博供电公司 | Portable mutual inductor polarity tester |
| CN204882675U (en) * | 2015-07-31 | 2015-12-16 | 国网山东省电力公司淄博供电公司 | Universal meter detecting system |
| CN105259466A (en) * | 2015-11-10 | 2016-01-20 | 国网山东沂源县供电公司 | A mutual inductor polarity test acousto-optic alarm instrument |
| CN206563787U (en) * | 2017-02-17 | 2017-10-17 | 广西电网有限责任公司崇左供电局 | A kind of portable type current transformer secondary winding polarity tester |
-
2019
- 2019-12-31 CN CN201911403762.5A patent/CN110907865A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH707218A2 (en) * | 2012-11-13 | 2014-05-15 | Eth Zürich Eth Transfer | Method for measuring inductance during measurement of magnetic flux density or magnetic saturation in e.g. inductive element, involves determining frequency of measurement voltage as measure of measured inductance |
| CN204832411U (en) * | 2015-07-31 | 2015-12-02 | 国网山东省电力公司淄博供电公司 | Portable mutual inductor polarity tester |
| CN204882675U (en) * | 2015-07-31 | 2015-12-16 | 国网山东省电力公司淄博供电公司 | Universal meter detecting system |
| CN105259466A (en) * | 2015-11-10 | 2016-01-20 | 国网山东沂源县供电公司 | A mutual inductor polarity test acousto-optic alarm instrument |
| CN206563787U (en) * | 2017-02-17 | 2017-10-17 | 广西电网有限责任公司崇左供电局 | A kind of portable type current transformer secondary winding polarity tester |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112698239A (en) * | 2020-11-10 | 2021-04-23 | 国网山东省电力公司淄博供电公司 | Portable mutual inductor polarity tester |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20200324 |