CN105259466A - A mutual inductor polarity test acousto-optic alarm instrument - Google Patents
A mutual inductor polarity test acousto-optic alarm instrument Download PDFInfo
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- CN105259466A CN105259466A CN201510762027.9A CN201510762027A CN105259466A CN 105259466 A CN105259466 A CN 105259466A CN 201510762027 A CN201510762027 A CN 201510762027A CN 105259466 A CN105259466 A CN 105259466A
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- test
- mutual inductor
- power supply
- emitting diode
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Abstract
The invention belongs to the field of electric power, and more specifically relates to a mutual inductor polarity test acousto-optic alarm instrument comprising a power supply, a buzzer, a light emitting diode and an ammeter. The power supply, a power switch, a test switch button, the light emitting diode and the buzzer are sequentially in series connection, and then separately connected to two primary side wiring terminals of a to-be-tested mutual inductor. The ammeter is in series connection between two secondary side wiring terminals of the to-be-tested mutual inductor. A control switch is in series connection with an illuminating lamp, and then is in parallel connection with the power supply and the power switch. A relay is in series connection between the test switch button and the light emitting diode. According to the invention, through combination of determination results of the ammeter, luminescence of the light emitting diode and the buzzer, an acousto-optic multiple-alarm test form is realized; occurrence of incorrect determination is avoided; and the accuracy is high. According to the mutual inductor polarity test acousto-optic alarm instrument, the power switch is installed; the power supply can be disconnected when the mutual inductor polarity test acousto-optic alarm instrument is not used or tests are finished to realize physical disconnection of a power supply loop; phenomena of electric leakage can be effectively avoided; and the usage life of batteries can be prolonged.
Description
Technical field
The invention belongs to power domain, be specifically related to a kind of mutual inductor polarity test sound and light alarm instrument.
Background technology
Mutual inductor is equipment conventional in electric power facility, comprises current transformer and voltage transformer (VT), has a winding and Secondary Winding.Mutual inductor polarity tester is used to detect the whether correct equipment of the polarity connected mode of mutual inductor.
In prior art there is following problem in mutual inductor polarity tester:
Operation needs two people to carry out usually, or single bimanualness, uses inconvenience; Existing mutual inductor polarity tester volume is bigger than normal, and inconvenience is carried in transport; Without illumination functions, run into the working environment that light is bad, also need to use illuminations floor light just can complete wiring; Mutual inductor polarity test needs to touch equipment primary side (high-pressure side), special electrical verification instrument (such as high voltage electroscope) must be used to carry out electrical verification, if cannot judge or forget that whether judgment device is charged, life injury accident may be caused; Existing mutual inductor polarity tester uses dedicated circuit test lead, as test lead length is less than test loop length, then cannot carry out polarity test.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of mutual inductor polarity test sound and light alarm instrument, test result accuracy is high.
Mutual inductor polarity test sound and light alarm instrument of the present invention, comprise power supply, hummer, light emitting diode and reometer, after power supply, power switch, Test Switchboard button, light emitting diode, hummer are connected successively, connect two primary side connection terminals of to-be-tested transformer respectively, between two secondary side connection terminals of to-be-tested transformer, be in series with reometer; Gauge tap is in parallel with power supply and power switch after connecting with illuminating lamp.
Series relay between Test Switchboard button and light emitting diode.
During test, closed electrical source switch, presses Test Switchboard button, to-be-tested transformer is tested, if ammeter pointer rotates, illustrate that the polarity of to-be-tested transformer and electric power polarity are additive polarities, illustrate that the polarity of to-be-tested transformer and electric power polarity are subtractive polarities if do not rotated.Meanwhile, go back observable light emitting diode, if lumination of light emitting diode, circuit turn-on is described, the polarity of to-be-tested transformer and electric power polarity are additive polarities, if the polarity of not luminous explanation to-be-tested transformer and electric power polarity are subtractive polarities.In addition, also can observe hummer, if hummer is sounded, circuit turn-on is described, the polarity of to-be-tested transformer and electric power polarity are additive polarities, if hummer is not sounded, illustrate that the polarity of to-be-tested transformer and electric power polarity are subtractive polarities.Combined by the mode of reometer, light emitting diode and hummer three kinds of judged results, achieve acousto-optic multiple alarm test form, avoid the generation of false judgment situation, accuracy is high.
During test, can Closed control switch, make illuminating lamp bright, as the floor light instrument in dark surrounds during wiring, realize illumination functions during test.
Test wiring adopts the second test wire pluggable mode of standard, and can increase as required, reduce test lead length, the scope of application is wider.
Volume of the present invention is little, easy to carry.Power supply can use special chargeable lithium cell, also can use a joint 9V battery, convenient and reliable.
Series relay between Test Switchboard button and light emitting diode, plays safety effect.
In sum, the present invention has the following advantages:
The present invention is combined by the mode of reometer, lumination of light emitting diode and hummer three kinds of judged results, and achieve acousto-optic multiple alarm test form, avoid the generation of false judgment situation, accuracy is high.Be provided with power switch, need not or be completed can deenergization, realizes electric power loop physics and cut-offs, and effectively avoids running leaky, strengthens battery.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: 1-power switch, 2-power supply, 3-Test Switchboard button, 4-relay, 5-light emitting diode, 6-hummer, 7-primary side connection terminal, 8-secondary side connection terminal, 9-reometer, 10-illuminating lamp, 11-gauge tap.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
Embodiment
A kind of mutual inductor polarity test sound and light alarm instrument, comprise power supply 2, hummer 6, light emitting diode 5 and reometer 9, after power supply 2, power switch 1, Test Switchboard button 3, light emitting diode 5, hummer 6 are connected successively, connect two primary side connection terminals 7 of to-be-tested transformer respectively, between two secondary side connection terminals 8 of to-be-tested transformer, be in series with reometer 9; Gauge tap 11 is in parallel with power supply 2 and power switch 1 after connecting with illuminating lamp 10.Series relay 4 between Test Switchboard button 3 and light emitting diode 5.
During test, closed electrical source switch 1, presses Test Switchboard button 3, to-be-tested transformer is tested, if reometer 9 indicators turn, illustrate that the polarity of to-be-tested transformer and power supply 2 polarity are additive polarities, illustrate that the polarity of to-be-tested transformer and power supply 2 polarity are subtractive polarities if do not rotated.Meanwhile, go back observable light emitting diode 5, if light emitting diode 5 is luminous, circuit turn-on is described, polarity and power supply 2 polarity of to-be-tested transformer are additive polarities, if the polarity of not luminous explanation to-be-tested transformer and power supply 2 polarity are subtractive polarities.In addition, also can observe hummer 6, if hummer 6 is sounded, circuit turn-on is described, polarity and power supply 2 polarity of to-be-tested transformer are additive polarities, if hummer 6 is not sounded, illustrate that the polarity of to-be-tested transformer and power supply 2 polarity are subtractive polarities.Combined by the mode of reometer 9, light emitting diode 5 and hummer 6 three kinds of judged results, achieve acousto-optic multiple alarm test form, avoid the generation of false judgment situation, accuracy is high.
During test, can Closed control switch 11, make illuminating lamp 10 bright, as the floor light instrument in dark surrounds during wiring, realize illumination functions during test.
Claims (1)
1. a mutual inductor polarity test sound and light alarm instrument, it is characterized in that: comprise power supply (2), hummer (6), light emitting diode (5) and reometer (9), after power supply (2), power switch (1), Test Switchboard button (3), light emitting diode (5), hummer (6) are connected successively, connect two primary side connection terminals (7) of to-be-tested transformer respectively, between two secondary side connection terminals (8) of to-be-tested transformer, be in series with reometer (9); Gauge tap (11) is in parallel with power supply (2) and power switch (1) after connecting with illuminating lamp (10); Series relay (4) between Test Switchboard button (3) and light emitting diode (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510762027.9A CN105259466A (en) | 2015-11-10 | 2015-11-10 | A mutual inductor polarity test acousto-optic alarm instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510762027.9A CN105259466A (en) | 2015-11-10 | 2015-11-10 | A mutual inductor polarity test acousto-optic alarm instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105259466A true CN105259466A (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510762027.9A Withdrawn CN105259466A (en) | 2015-11-10 | 2015-11-10 | A mutual inductor polarity test acousto-optic alarm instrument |
Country Status (1)
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| CN (1) | CN105259466A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643505A (en) * | 2017-10-11 | 2018-01-30 | 国网宁夏电力公司吴忠供电公司 | 110kV current transformer integrated form polarity test devices |
| CN110907865A (en) * | 2019-12-31 | 2020-03-24 | 国网山东省电力公司淄博供电公司 | Portable mutual inductor polarity tester |
| 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 |
| CN112946555A (en) * | 2021-03-15 | 2021-06-11 | 国网新疆电力有限公司巴州供电公司 | Current transformer polarity test system based on dual display |
-
2015
- 2015-11-10 CN CN201510762027.9A patent/CN105259466A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643505A (en) * | 2017-10-11 | 2018-01-30 | 国网宁夏电力公司吴忠供电公司 | 110kV current transformer integrated form polarity test devices |
| CN110907865A (en) * | 2019-12-31 | 2020-03-24 | 国网山东省电力公司淄博供电公司 | Portable mutual inductor polarity tester |
| 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 |
| CN112946555A (en) * | 2021-03-15 | 2021-06-11 | 国网新疆电力有限公司巴州供电公司 | Current transformer polarity test system based on dual display |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160120 |