CN2444244Y - Phase checking device - Google Patents
Phase checking device Download PDFInfo
- Publication number
- CN2444244Y CN2444244Y CN 00230624 CN00230624U CN2444244Y CN 2444244 Y CN2444244 Y CN 2444244Y CN 00230624 CN00230624 CN 00230624 CN 00230624 U CN00230624 U CN 00230624U CN 2444244 Y CN2444244 Y CN 2444244Y
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- China
- Prior art keywords
- utility
- model
- circuit
- phase
- wire connecting
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- Expired - Fee Related
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model relates to a phase checking device, which is characterized in that the utility model comprises a main casing with a built-in circuit, and two extracted wire connecting terminals, wherein, after circuit of the wire connecting terminals is connected in series with a voltage-reducing resistance, the circuit of the wire connecting terminals is connected with the input terminal of a rectification bridge; the output terminal of the rectification bridge is respectively connected in parallel with a resistor and a capacitance; the load of the rectification bridge is an indicating light, and the circuit of the indicating light is connected in series with a current-limiting resistor. When the utility model is used, two wire connecting terminals are respectively inserted into reserved phase openings of two high voltage charge displayers of different webs, the phase sequence can be judged using potential differences between different phases. The utility model has the advantages of reasonable design and convenient operation. The utility model provides a simple and convenient tool for the phase check of an electrical network.
Description
The utility model belongs to high pressure and shows the field, particularly a kind ofly is used for the phasing tester that the high pressure nuclear phase is used.
Electric power has cleaning, the facility that can directly use as one of the modernization life and the main energy sources of producing.In order to guarantee the electric power regular supply, the user adopts double power-supply system more or is incorporated into the power networks between different electrical networks or switches, and different phase sequence intersections can cause phenomenons such as short circuit, and influence operation of power networks.The phase sequence of how checking between each electrical network becomes a difficult problem.The high-voltage charge display devices that adopt are pointed out power supply and ruuning situation more on electrical network at present, and display is to extract high-voltage signal by taking out pressure sensor, and for display process, but it can't provide the phase sequence situation.
The purpose of this utility model is a kind of phasing tester that can carry out nuclear phase to the electric signal that high-voltage charge display device is introduced of design.
Task of the present utility model is achieved in that a kind of phasing tester, it is characterized in that comprising two connection terminals that are built-in with the main casing of circuit and draw, connect the input end of rectifier bridge on the connection terminal loop behind serial connection one dropping resistor, the output terminal of rectifier bridge respectively and be connected to resistance and electric capacity, its load is a pilot lamp, is serially connected with a current-limiting resistance on the loop of pilot lamp.During use two connection terminals are inserted respectively on the phase place mouth of reserving in the high-voltage charge display device of two different nets, if the insertion of two connection terminals is same-phase, promptly do not have phase differential, the pilot lamp in the phasing tester does not work, and this two cable is that same phase sequence can realize being incorporated into the power networks; If it is bright indication to occur, promptly need changes different phase place mouths and detect.Each phase place detects the cable that can detect with phase sequence at most three times.
The utlity model has reasonable in design, use easy to operately, make full use of the electric signal that high-voltage charge display device is introduced,, satisfy the needs that ring network power supply configuration and double power-supply system are checked phase sequence for the electrical network nuclear phase provides a kind of simple instrument.
Below in conjunction with concrete legend the utility model is described further:
Fig. 1 phasing tester circuit diagram
Fig. 2 phasing tester schematic appearance
Fig. 3 high-voltage charge display device schematic diagram
With reference to Fig. 1 and Fig. 2, a kind of phasing tester, its structure comprises two connection terminals 2 that are built-in with the main casing 1 of circuit and draw, connect the input end of rectifier bridge D on connection terminal 2 loops behind the serial connection one dropping resistor R1, the output terminal of rectifier bridge D respectively and be connected to resistance R 2 and capacitor C, its load is a pilot lamp RL, is serially connected with a current-limiting resistance R3 on the loop of pilot lamp RL.This circuit is to utilize to have potential difference (PD) between out of phase, this principle designs, during detection, when the cable that inserts out of phase or phase sequence respectively when two connection terminals is drawn on the signal, produce certain potential difference (PD) therebetween, after step-down and rectification, be directly used in the driving pilot lamp, form one and judge intuitively.Two connection terminals 2 are made plug-like, the convenient insertion in the default telltale hole, and main casing 1 is provided with pilot lamp window 3, the light transmissive of pilot lamp 4 (RL in the circuit) goes out, and is convenient to observe judge.
With reference to Fig. 3, the schematic diagram of this high-voltage charge display device is a prior art, it is by taking out pressure sensor 5 sampled voltage signals for showing pilot lamp RL1, RL2, RL3 work, lead to a signaling interface A, B, C at its incoming end, and on the panel of display, being preset with socket, the connection terminal plug that is convenient to phasing tester inserts.In addition then, also be preset with a ground interface E on the panel of high-voltage charge display device, each indicates the working condition in loop mutually to utilize phasing tester also can check display.
Claims (3)
1, a kind of phasing tester, it is characterized in that comprising two connection terminals that are built-in with the main casing of circuit and draw, connect the input end of rectifier bridge on the connection terminal loop behind serial connection one dropping resistor, the output terminal of rectifier bridge respectively and be connected to resistance and electric capacity, its load is a pilot lamp, is serially connected with a current-limiting resistance on the loop of pilot lamp.
2, phasing tester according to claim 1 is characterized in that two connection terminals become plug-like.
3, phasing tester according to claim 1 is characterized in that main casing is provided with the pilot lamp window, and the light transmissive of pilot lamp goes out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00230624 CN2444244Y (en) | 2000-08-11 | 2000-08-11 | Phase checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00230624 CN2444244Y (en) | 2000-08-11 | 2000-08-11 | Phase checking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2444244Y true CN2444244Y (en) | 2001-08-22 |
Family
ID=33593699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00230624 Expired - Fee Related CN2444244Y (en) | 2000-08-11 | 2000-08-11 | Phase checking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2444244Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337806A (en) * | 2013-06-02 | 2013-10-02 | 国家电网公司 | Ring network switch having nuclear phase function |
-
2000
- 2000-08-11 CN CN 00230624 patent/CN2444244Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337806A (en) * | 2013-06-02 | 2013-10-02 | 国家电网公司 | Ring network switch having nuclear phase function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |