CN204595168U - Protective relaying device outputs contact testing tool - Google Patents
Protective relaying device outputs contact testing tool Download PDFInfo
- Publication number
- CN204595168U CN204595168U CN201520255259.0U CN201520255259U CN204595168U CN 204595168 U CN204595168 U CN 204595168U CN 201520255259 U CN201520255259 U CN 201520255259U CN 204595168 U CN204595168 U CN 204595168U
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- CN
- China
- Prior art keywords
- connection terminal
- contact
- light emitting
- emitting diode
- relaying device
- 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 - Fee Related
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Abstract
A kind of protective relaying device outputs contact testing tool; comprise light emitting diode and connection terminal; connection terminal, light emitting diode are connected in series, and the connection terminal other end is also provided with resistance with outputing on series circuit that contact, connection terminal and light emitting diode form.Output the series circuit that contact, connection terminal and light emitting diode form and have many groups, between many group series circuits, be connected in parallel formation parallel circuit.Parallel circuit two ends connect positive electrode and negative electrode respectively.By adopting above structure, realize carrying out on off operating mode detection to multiple contact of outputing simultaneously.Be compared to and utilize multimeter to detect, its cost is lower, and need not worry at mechanical movement, cannot judge in a riot of sound environment.Decrease the personnel amount required for detection, avoid the contact of outputing caused due to combination miss when many people coordinate detection simultaneously and omit situation about detecting and occur.
Description
Technical field
The utility model relates to electric circuit inspection instrument, and particularly a kind of protective relaying device outputs contact testing tool.
Background technology
Transmit by be correlated with tripping operation, the monitoring of contact deactivation of outputing of device, record ripple loop after microcomputer protective relay device action; Very high to outputing contact reliability requirement, this dynamic then action message, the reliable conducting of contact, should not move then reliable tripping, contact not conducting; Protective relaying device is outputed contact test and is device factory inspection, newly installs essential items for inspection in inspection, one-hundred-percent inspection.
Existing protective relaying device is outputed contact test and is adopted multimeter to carry out on off test, after protection act, measures the break-make of corresponding tripping operation contact, pilot signal contact, record ripple signal contact with multimeter one by one, determines contact whether conducting.
And contact one by one carries out detecting and not only wastes time and energy, and multimeter to detect be judge contact whether conducting by sound, be difficult to hear sound in the environment having mechanical movement.Multimeter detects also needs many people to coordinate, and slightly error will cause detection entirely not omit contact.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of protective relaying device and outputs contact testing tool; connection point on-off state can be outputed to many groups to detect simultaneously; and by light emitting diode more intuitively docking point break-make judge; improve detection efficiency, decrease the personnel required for detection.
For solving the problems of the technologies described above; the technical scheme that the utility model adopts is: a kind of protective relaying device outputs contact testing tool; comprise light emitting diode and connection terminal; connection terminal, light emitting diode are connected in series; the connection terminal other end with output contact and be connected, required detection output contact and connection terminal, light emitting diode form a series circuit.
In preferred scheme, described outputing on series circuit that contact, connection terminal and light emitting diode form also is provided with resistance.
In preferred scheme, described output the series circuit that contact, connection terminal and light emitting diode form and have many groups, between many group series circuits, be connected in parallel formation parallel circuit.
In preferred scheme, described parallel circuit two ends connect positive electrode and negative electrode respectively.
In preferred scheme, described positive electrode and negative electrode are connected the both positive and negative polarity of 9V battery respectively.
In preferred scheme, described resistance value is 620 Ω, and power is 1/4W.
In preferred scheme, described light emitting diode diameter 3mm, voltage 2.1-2.6V, electric current 5mA-17.5mA.
In preferred scheme, described connection terminal is screw-type or plug-in, and spacing is 5.08mm.
In preferred scheme, according to the quantity outputing number of connections determination series circuit of required detection, can be connected in parallel between all series circuits.
In preferred scheme, on the pcb board that whole pick-up unit is arranged.
A kind of protective relaying device that the utility model provides outputs contact testing tool; by adopting above structure; being together in series by adopting will output between contact and light emitting diode, being connected in parallel between many group series circuits, realizing carrying out on off operating mode detection to multiple contact of outputing simultaneously.And adopt the light emitting diode whether luminous basis for estimation as judging to output in this series circuit contact and whether being communicated with, be compared to and utilize multimeter to detect, its cost is lower, and need not worry at mechanical movement, cannot judge in a riot of sound environment.Connection terminal is adopted to connect each contact of outputing, easy to operate, decrease the personnel amount required for detection, avoid the contact of outputing caused due to combination miss when many people coordinate detection simultaneously and omit situation about detecting and occur.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is one-piece construction schematic diagram of the present utility model.Multiple identical series circuit is eliminated in figure.
In figure: output contact 1, resistance 2, light emitting diode 3, connection terminal 4, positive electrode 5, negative electrode 6.
Embodiment
As in figure: a kind of protective relaying device outputs contact testing tool; connection terminal 4, light emitting diode 3 are connected in series; connection terminal 4 other end with output contact 1 and be connected, required detection output contact 1 and connection terminal 4, light emitting diode 3 form a series circuit.By adopting said structure, utilizing light emitting diode to replace multimeter to detect, making detection according to more directly perceived, avoiding cannot hearing that the sound of multimeter causes testing result inaccurate because environment is noisy.
In preferred scheme, described outputing on series circuit that contact 1, connection terminal 4 and light emitting diode 3 form also is provided with resistance 2.Consider that protective relaying device outputs contact current interruption ability, therefore series connection resistance is set.
In preferred scheme, described output the series circuit that contact 1, connection terminal 4 and light emitting diode 3 form and have many groups, between many group series circuits, be connected in parallel formation parallel circuit.Realize multiple contact of outputing by this mode to detect simultaneously, promote the efficiency detected.
In preferred scheme, described parallel circuit two ends connect positive electrode 5 and negative electrode 6 respectively.
In preferred version, consider that protective relaying device outputs contact current interruption ability, when outputing contact conducting, the electric current in this loop should be less than 0.15A, and consider the power of light-emitting diodes light and resistance, as calculated, required element model specification as above simultaneously.
Positive electrode 5 is connected the both positive and negative polarity of 9V battery respectively with negative electrode 6.
Resistance 2 resistance value is 620 Ω, and power is 1/4W.
Light emitting diode 3 diameter 3mm, voltage 2.1-2.6V, electric current 5mA-17.5mA.
Connection terminal is screw-type or plug-in, and spacing is 5.08mm.
Further illustrate according to example:
By the connection terminal in multiple series circuit respectively with output contact and connect, after having connected, 9V battery is utilized to power to whole parallel circuit, when light emitting diode is shinny, then represent that the contact of outputing in this series circuit is communicated with, when light emitting diode does not work, then represent that the contact of outputing in this series circuit disconnects.
Claims (8)
1. a protective relaying device outputs contact testing tool; comprise light emitting diode (3) and connection terminal (4); it is characterized in that: connection terminal (4), light emitting diode (3) are connected in series; connection terminal (4) other end with output contact (1) and be connected, required detection output contact (1) and connection terminal (4), light emitting diode (3) composition series circuit.
2. a kind of protective relaying device according to claim 1 outputs contact testing tool, it is characterized in that: described outputing on series circuit that contact (1), connection terminal (4) and light emitting diode (3) form also is provided with resistance (2).
3. a kind of protective relaying device according to claim 1 and 2 outputs contact testing tool; it is characterized in that: described output the series circuit that contact (1), connection terminal (4) and light emitting diode (3) form and have many groups, between many group series circuits, be connected in parallel formation parallel circuit.
4. a kind of protective relaying device according to claim 3 outputs contact testing tool, it is characterized in that: described parallel circuit two ends connect positive electrode (5) and negative electrode (6) respectively.
5. a kind of protective relaying device according to claim 4 outputs contact testing tool, it is characterized in that: described positive electrode (5) and negative electrode (6) are connected the both positive and negative polarity of 9V battery respectively.
6. a kind of protective relaying device according to claim 2 outputs contact testing tool, it is characterized in that: described resistance (2) resistance value is 620 Ω, and power is 1/4W.
7. a kind of protective relaying device according to claim 1 outputs contact testing tool, it is characterized in that: described light emitting diode (3) diameter 3mm, voltage 2.1-2.6V, electric current 5mA-17.5mA.
8. a kind of protective relaying device according to claim 1 outputs contact testing tool, it is characterized in that: described connection terminal (4) is screw-type or plug-in, and spacing is 5.08mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520255259.0U CN204595168U (en) | 2015-04-24 | 2015-04-24 | Protective relaying device outputs contact testing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520255259.0U CN204595168U (en) | 2015-04-24 | 2015-04-24 | Protective relaying device outputs contact testing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204595168U true CN204595168U (en) | 2015-08-26 |
Family
ID=53931313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520255259.0U Expired - Fee Related CN204595168U (en) | 2015-04-24 | 2015-04-24 | Protective relaying device outputs contact testing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204595168U (en) |
-
2015
- 2015-04-24 CN CN201520255259.0U patent/CN204595168U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20190424 |