CN202230193U - Detecting apparatus for electrical fire-fighting electric leakage detector - Google Patents
Detecting apparatus for electrical fire-fighting electric leakage detector Download PDFInfo
- Publication number
- CN202230193U CN202230193U CN2011200897837U CN201120089783U CN202230193U CN 202230193 U CN202230193 U CN 202230193U CN 2011200897837 U CN2011200897837 U CN 2011200897837U CN 201120089783 U CN201120089783 U CN 201120089783U CN 202230193 U CN202230193 U CN 202230193U
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- Prior art keywords
- detecting apparatus
- fighting
- leakage detector
- electrical fire
- serially connected
- Prior art date
- 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 - Lifetime
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model relates to a detecting apparatus for an electrical fire-fighting electric leakage detector, aiming at providing a detecting apparatus having a simple circuit structure. The detecting apparatus is characterized in that: a detecting ring (4) is firstly sleeved upon an inductance loop of an electrical fire-fighting leakage detector; then two ends of a power supply (1) are serially connected with a switch (2) and then are serially connected with two ends of an auto transformer (3); and the zero line of the primary terminal of the auto transformer (3), after serially connected with the detecting ring (4), is serially connected with a current-limiting resistor (5) and then is serially connected with an ammeter (6) and connected with an intermediate mobile tap (7) of the auto transformer (3) at the end. The detecting apparatus of the utility model realizes the detection of an electrical fire-fighting leakage detector with a relatively simple structure.
Description
Affiliated technical field:
The utility model relates to a kind of pick-up unit of electric fire-fighting earth detector
Background technology:
The pick-up unit of traditional electric fire-fighting electric leakage detecting alarm is because circuit structure is complicated, so cost is higher.
Summary of the invention:
The purpose of the utility model provides the sniffer of the simple electric fire-fighting leakage indicator of a kind of circuit structure; It is characterized in that: be enclosed within detection ring (4) on the inductance loop of electric fire-fighting leakage indicator earlier; Be connected in series autotransformer (3) two ends again behind the two ends serial connection switches (2) with power supply (1) again; Zero line serial connection detection ring (4) back of the primary side of autotransformer (3) is connected in series the back and is connected in series with reometer (6) with current-limiting resistance (5), tap (7) is moved in the centre that connects autotransformer (3) at last at present.When detecting, off switch (2), energized (1); Thereafter, move the position of tap (7) in the middle of regulating, make the size of current of pointed of reometer (6) identical with the specified leakage current value of tested electric fire-fighting earth detector; At this moment; If electric fire-fighting earth detector is made alarm or tripping operation reaction, show that then electric fire-fighting earth detector is normal, otherwise undesired.
The utility model has been realized the detection to electric fire-fighting leakage indicator with relative simple circuit configuration.
Description of drawings:
A kind of product circuit figure of Fig. 1, the utility model.
Embodiment:
Embodiment 1
See; Be connected in series autotransformer (3) two ends again behind the two ends serial connection switches (2) of Fig. 1, power supply (1); Primary side serial connection detection ring (4) back of autotransformer (3) is connected in series the back and is connected in series with reometer (6) with current-limiting resistance (5), tap (7) is moved in the centre that connects autotransformer (3) at last at present.
Component parameters is following:
Autotransformer (3): 250 watts, current-limiting resistance (5): 220 ohm, reometer (6): 2 amperes.
Claims (1)
1. the pick-up unit of an electric fire-fighting earth detector; It is characterized in that: be connected in series autotransformer (3) two ends again behind the two ends serial connection switches (2) of power supply (1); After the zero line of the primary side of autotransformer (3) is connected in series detection ring (4) back and current-limiting resistance (5) is connected in series; Be connected in series with reometer (6), tap (7) is moved in the centre that connects autotransformer (3) at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200897837U CN202230193U (en) | 2011-03-30 | 2011-03-30 | Detecting apparatus for electrical fire-fighting electric leakage detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200897837U CN202230193U (en) | 2011-03-30 | 2011-03-30 | Detecting apparatus for electrical fire-fighting electric leakage detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202230193U true CN202230193U (en) | 2012-05-23 |
Family
ID=46080776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200897837U Expired - Lifetime CN202230193U (en) | 2011-03-30 | 2011-03-30 | Detecting apparatus for electrical fire-fighting electric leakage detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202230193U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019194A (en) * | 2016-06-29 | 2016-10-12 | 张家港友诚科技机电有限公司 | Test method for electric leakage detection circuit |
-
2011
- 2011-03-30 CN CN2011200897837U patent/CN202230193U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019194A (en) * | 2016-06-29 | 2016-10-12 | 张家港友诚科技机电有限公司 | Test method for electric leakage detection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |
|
| CX01 | Expiry of patent term |