CN2412220Y - Electricity leakage switch detector - Google Patents
Electricity leakage switch detector Download PDFInfo
- Publication number
- CN2412220Y CN2412220Y CN 99229524 CN99229524U CN2412220Y CN 2412220 Y CN2412220 Y CN 2412220Y CN 99229524 CN99229524 CN 99229524 CN 99229524 U CN99229524 U CN 99229524U CN 2412220 Y CN2412220 Y CN 2412220Y
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- China
- Prior art keywords
- utmost point
- leakage switch
- diode
- utility
- model
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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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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to an electricity leakage switch detector, which comprises a casing, electric contact strips and a detection circuit installed in the casing. The utility model is characterized in that the detection circuit is composed of resistors R1 and R2, a diode D, a light emitting tube LED and the three-phase electric contact strips. The utility model not only can effectively detect the protection performance of the electricity leakage switch and the proper condition of the phase wiring, but also has the advantages of simple structure, convenient operation, low volume, light weight, convenient carrying, economy and utility.
Description
The utility model relates to a kind of detecting device, exactly is a kind of leakage switch detecting device.
Rapid development along with national economy; people's living standard raising progressively; enter huge numbers of families' household appliances increase day by day; for preventing to jeopardize personal safety because of electric leakage takes place household electrical appliances; people have invented a kind of leakage switch; be used for when electric leakage takes place household electrical appliance, the fast shut-off power supply is with the protection personal safety.But the quality problems of leakage switch have then become vital problem, and the performance that how to detect leakage switch is the difficult problem that present people are badly in need of solving.
The purpose of this utility model provides the detecting device simple in structure, easy to use, economical and practical of the correct situation of a kind of protective value that detects leakage switch and phase place wiring.
The purpose of this utility model is realized by following technical scheme.
The utility model comprises the bakelite housing, the testing circuit that is equipped with in electric contact piece and the housing, it is characterized in that: testing circuit is by resistance R 1, R2, diode D, LED and comprise L, N, the electric contact piece 2 of the E three-phase utmost point is formed, series resistor R2 between the E utmost point and the L utmost point two phase lines, the reduction voltage circuit that diode D and right LED constitute is parallel to the leakage circuit that is made of series resistor R1 between the E utmost point and the L utmost point two phase lines, series resistor R2 between the L utmost point and the N utmost point two phase lines, middle LED and diode D, the left LED of serial connection between the N utmost point and the E utmost point two phase lines, diode D and resistance R 2.Three light emitting diodes in left, center, right are arranged on the aperture of below, housing front, and protrude a part in the outside surface of housing.
When needing to detect the performance of leakage switch, the electric contact piece of the three-phase utmost point of detecting device is inserted Three-hole socket, producing about 29.5 milliamperes of electric currents by resistance R 1 makes detecting device two light emitting diodes middle and the right bright, leakage switch tripping operation in 0.1 second, two 2 utmost point luminotrons promptly go out, and this shows that all qualified and phase line of the capability and performance of leakage switch connects correct.If two 2 utmost point luminotrons are bright and do not go out, then show leakage switch have performance issue or expression zero, shared single line, need in time fix a breakdown.If the left side and middle two two utmost point luminotrons are bright, showing then that circuit has opens circuit or the wiring mistake, generally may be lack ground wire or mutually zero wrong or mutually wrong lack ground wire.If three light emitting diodes are bright entirely, then show scarce zero line.If about two light emitting diodes bright, then show the equal wrong of phase line ground wire.Therefore can on purpose check circuit and get rid of fault according to the light on and off of three diodes.
The utility model has the advantages that and not only can detect the protective value of leakage switch and the correct situation of phase place wiring effectively, and simple in structure, easy to use, and body is light in a small amount, is easy to carry, and is economical and practical.
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model front view.
Fig. 3 is the utility model rear view.
Fig. 4 is the utility model side view.
By the following examples, in conjunction with the accompanying drawings, the utility model is done to describe further.
Embodiment:
(referring to Fig. 1-4) is equipped with in bakelite housing 1 by resistance R 1, R2, diode D, the testing circuit of LED and electric contact piece 2 compositions that comprise L, N, the E three-phase utmost point.The leakage circuit that series resistor R1 constitutes between the reduction voltage circuit that series resistor R2, diode D and right LED between the E utmost point and the L utmost point two phase lines constitute is parallel to by the E utmost point and the L utmost point two phase lines.Series resistor R2, middle LED and diode D between the L utmost point and the N utmost point two phase lines.Serial connection left LED, diode D and resistance R 2 between the N utmost point and the E utmost point two phase lines.Three light emitting diodes in left, center, right are installed on respectively on the housing 1 positive below aperture, make a part protrude from the outside surface of housing.
Claims (2)
1, a kind of leakage switch detecting device, it comprises bakelite housing (1), the testing circuit that is equipped with in electric contact piece (2) and the housing (1), it is characterized in that: testing circuit is by resistance R 1, R2, diode D, LED and comprise L, N, the electric contact piece 2 of the E three-phase utmost point is formed, series resistor R2 between the E utmost point and the L utmost point two phase lines, the reduction voltage circuit that diode D and right LED constitute is parallel to the leakage circuit that is made of series resistor R1 between the E utmost point and the L utmost point two phase lines, series resistor R2 between the L utmost point and the N utmost point two phase lines, middle LED and diode D, the left LED of serial connection between the N utmost point and the E utmost point two phase lines, diode D and resistance R 2.
2, leakage switch detecting device according to claim 1 is characterized in that: three light emitting diodes in left, center, right are arranged on the aperture of the positive below of housing (1), and protrude a part in the outside surface of housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229524 CN2412220Y (en) | 1999-09-30 | 1999-09-30 | Electricity leakage switch detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229524 CN2412220Y (en) | 1999-09-30 | 1999-09-30 | Electricity leakage switch detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2412220Y true CN2412220Y (en) | 2000-12-27 |
Family
ID=34018756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99229524 Expired - Fee Related CN2412220Y (en) | 1999-09-30 | 1999-09-30 | Electricity leakage switch detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2412220Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091629A (en) * | 2013-02-01 | 2013-05-08 | 山东电力集团公司莱芜供电公司 | Domestic residual-current circuit breaker simple tester |
-
1999
- 1999-09-30 CN CN 99229524 patent/CN2412220Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091629A (en) * | 2013-02-01 | 2013-05-08 | 山东电力集团公司莱芜供电公司 | Domestic residual-current circuit breaker simple tester |
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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 |