CN219625601U - Three-phase alternating current open-phase detection device - Google Patents
Three-phase alternating current open-phase detection device Download PDFInfo
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- CN219625601U CN219625601U CN202321040745.1U CN202321040745U CN219625601U CN 219625601 U CN219625601 U CN 219625601U CN 202321040745 U CN202321040745 U CN 202321040745U CN 219625601 U CN219625601 U CN 219625601U
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Abstract
The utility model belongs to the technical field of electric power detection, and particularly relates to a three-phase alternating current open-phase detection device. The first current sensor, the second current sensor and the third current sensor are connected with the input end of the Schottky diode through connecting wires to rectify the received electric signals; the Schottky diode outputs the rectified electric signal to the isolation optocoupler to supply power for the isolation optocoupler; the photoelectric effect of the isolation optocoupler transmits the electric signal to the light emitting diode for luminous indication. The three-phase alternating current phase-failure detection device can realize single-person measurement under the condition of not contacting with a conductor by utilizing the characteristics of a current transformer, and realizes the phase-failure detection of the three-phase alternating current by utilizing simple components, and has smaller volume and lower cost.
Description
Technical Field
The utility model belongs to the technical field of electric power detection, and particularly relates to a three-phase alternating current open-phase detection device.
Background
At present, the method for detecting the open-phase of the three-phase alternating current is to utilize the alternating current of a universal meter to test gear, and judge whether the open-phase exists or not by testing phase voltage or line voltage; the method has the advantages of high measuring difficulty and low accuracy; and two people are required to coordinate measurement by using the universal meter, and limbs are easy to knock over a high-voltage line or other high-voltage equipment during measurement, so that electric shock accidents are easy to cause, and the universal meter has certain danger.
Disclosure of Invention
To solve the defects and the shortages of the prior art; the utility model aims to provide a three-phase alternating current open-phase detection device which is simple in structure, reasonable in design and convenient to use, can realize single person measurement under the condition of not contacting a conductor by utilizing the characteristics of a current transformer, and realizes open-phase detection of three-phase alternating current by utilizing simple components, and is smaller in volume and lower in cost.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the light-emitting diode comprises a first current sensor, a second current sensor, a third current sensor, a Schottky diode, an isolated optocoupler and a light-emitting diode; the first current sensor, the second current sensor and the third current sensor are connected with the input end of the Schottky diode through connecting wires to rectify the received electric signals; the Schottky diode outputs the rectified electric signal to the isolation optocoupler to supply power for the isolation optocoupler; the photoelectric effect of the isolation optocoupler transmits the electric signal to the light emitting diode for luminous indication.
Preferably, the first current sensor, the second current sensor and the third current sensor all adopt a clamp-type ring structure.
Preferably, the schottky diode and the resistor are combined to form a rectifying module to rectify the collected electric signal.
Preferably, the schottky diode, the isolation optocoupler and the light emitting diode are integrated in the equipment shell together, and the first current sensor, the second current sensor and the third current sensor are connected with the equipment shell in a plug-in mode.
Preferably, the light emitting diode flashes or is normally bright according to the electric signal output by the isolated optocoupler photoelectric effect.
After the structure is adopted, the utility model has the beneficial effects that:
1. the characteristics of the current transformer are utilized, measurement can be realized under the condition of not contacting the conductor, and the measurement can be completed by only one person.
2. The phase failure detection of the three-phase alternating current is realized by using a plurality of simple components, the volume is smaller, and the cost is lower.
Drawings
For a clearer description of embodiments of the present utility model or technical solutions in the prior art, the present utility model is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of the present utility model;
reference numerals illustrate: a first current sensor 1, a second current sensor 2, a third current sensor 3, a Schottky diode 4, an isolated optocoupler 5 and a light emitting diode 6.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model is described below by means of specific embodiments shown in the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.
It should be noted here that, in order to avoid obscuring the present utility model due to unnecessary details, only structures and/or processing steps closely related to the solution according to the present utility model are shown in the drawings, while other details not greatly related to the present utility model are omitted.
Referring to fig. 1, the following technical scheme is adopted in this specific embodiment: the light-emitting diode comprises a first current sensor 1, a second current sensor 2, a third current sensor 3, a Schottky diode 4, an isolation optocoupler 5 and a light-emitting diode 6; the first current sensor 1, the second current sensor 2 and the third current sensor 3 are connected with the input end of the Schottky diode 4 through connecting wires to rectify received electric signals; the Schottky diode 4 outputs a rectified electric signal to the isolation optocoupler 5 to supply power for the isolation optocoupler 5; the photoelectric effect of the isolation optocoupler 5 transmits an electric signal to the light emitting diode 6 for light emitting indication.
The first current sensor 1, the second current sensor 2 and the third current sensor 3 all adopt a clamp type ring structure; the schottky diode 4 and the resistor are combined to form a rectifying module to rectify the collected electric signals.
In addition, the schottky diode 4, the isolation optocoupler 5 and the light-emitting diode 6 are integrated in the equipment shell together, and the first current sensor 1, the second current sensor 2 and the third current sensor 3 are connected with the equipment shell in a plug-in mode; the light emitting diode 6 flashes or is normally bright according to the electric signal output by the photoelectric effect of the isolation optocoupler 5.
The working principle of the specific embodiment is as follows: the device comprises three current transformers, a Schottky diode, an isolation optocoupler, a light-emitting diode and a plurality of resistors; the three current transformers are in a clamp type annular shape, and when the three current transformers are used, the clamp type annular shape is clamped on the insulating layer of the lead; the voltage of the three-phase alternating current is transmitted to the Schottky diode through an induction coil in the current transformer to rectify the electric signal and then supply power to the input stage of the isolation optocoupler, then the electric signal is transmitted to the light emitting diode through the photoelectric effect of the isolation optocoupler to indicate the current voltage signal state, and the light emitting diode flickers to indicate the phase loss and the brightness is normal; the method is applied to the characteristics of the current transformer and the relation between current and voltage in the process, and the optocoupler isolation completely blocks high voltage.
The utility model uses several simple components, realizes the open-phase detection of three-phase alternating current, has smaller volume and lower cost, can realize measurement without contacting conductors by utilizing the characteristics of the current transformer, and can be completed by only one person.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. A three-phase alternating current open-phase detection device is characterized in that: the light-emitting diode comprises a first current sensor, a second current sensor, a third current sensor, a Schottky diode, an isolated optocoupler and a light-emitting diode; the first current sensor, the second current sensor and the third current sensor are connected with the input end of the Schottky diode through connecting wires to rectify the received electric signals; the Schottky diode outputs the rectified electric signal to the isolation optocoupler to supply power for the isolation optocoupler; the photoelectric effect of the isolation optocoupler transmits the electric signal to the light emitting diode for luminous indication.
2. A three-phase alternating current open-phase detection device according to claim 1, characterized in that: the first current sensor, the second current sensor and the third current sensor all adopt a clamp type annular structure.
3. A three-phase alternating current open-phase detection device according to claim 1, characterized in that: the Schottky diode and the resistor are combined to form a rectifying module to rectify the collected electric signals.
4. A three-phase alternating current open-phase detection device according to claim 1, characterized in that: the Schottky diode, the isolation optocoupler and the light-emitting diode are integrated in the equipment shell together, and the first current sensor, the second current sensor and the third current sensor are connected with the equipment shell in a plug-in mode.
5. A three-phase alternating current open-phase detection device according to claim 1, characterized in that: the light emitting diode flashes or is normally bright according to the electric signal output by the photoelectric effect of the isolated optocoupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321040745.1U CN219625601U (en) | 2023-05-04 | 2023-05-04 | Three-phase alternating current open-phase detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321040745.1U CN219625601U (en) | 2023-05-04 | 2023-05-04 | Three-phase alternating current open-phase detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219625601U true CN219625601U (en) | 2023-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321040745.1U Active CN219625601U (en) | 2023-05-04 | 2023-05-04 | Three-phase alternating current open-phase detection device |
Country Status (1)
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| CN (1) | CN219625601U (en) |
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2023
- 2023-05-04 CN CN202321040745.1U patent/CN219625601U/en active Active
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