CN102194606A - Guide-rail-type pulse width supervisory relay - Google Patents
Guide-rail-type pulse width supervisory relay Download PDFInfo
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- CN102194606A CN102194606A CN2010101221677A CN201010122167A CN102194606A CN 102194606 A CN102194606 A CN 102194606A CN 2010101221677 A CN2010101221677 A CN 2010101221677A CN 201010122167 A CN201010122167 A CN 201010122167A CN 102194606 A CN102194606 A CN 102194606A
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- peak detection
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- photoelectric coupling
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Abstract
The invention relates to a guide-rail-type pulse width supervisory relay, and particularly relates to a guide-rail-mounted static pulse width modulation detection-type opening and closing supervisory relay. The guide rail-type pulse width supervisory relay is composed of an intermediate output relay, an optoelectronic coupler, a square-wave generator and a peak detection amplifying circuit which are electrically connected; opening and closing coils are detected and supervised by adopting a pulse square wave of 1:10, and the square-wave peak value current is also reduced to about 2-3mA, and finally the average supervisory current is only about 0.2-0.3mA; and even a nonlinear large opening and closing coil can generate several Vs residual voltage.
Description
Technical field
The present invention relates to a kind of guide tracked pulsewidth supervisory relay, relate in particular to the static pulse-width modulation detection of a kind of guide rail installing type type separating brake, combined floodgate supervisory relay.
Background technology
A supervisory relay is closed in common jumping position, and its operating current is all very little, generally all about 5,6 milliamperes, and the combined floodgate of switches such as circuit breaker, divides brake current all at several amperes even tens of ampere.Like this, supervisory relay can not influence regular event, the return of circuit breaker branch, closing coil, but can play the effect of supervision.But the branch of part killer switch, closing coil exists non-linear, electric current during action is very big, impedance is very little (has only hundreds of ohms, even tens of ohms), but the back impedance horse back that moved becomes very big and (can reach thousands of ohms, even tens of kilohms), at this moment, 5, the electric current of 6 milliamperes just can divide, produce the residual voltage of the three ten-day period of hot season even last hectovolt on the closing coil, this voltage can allow branch, closing coil maintains operate condition, thereby cause circuit breaker next time again separating brake or can not close a floodgate again (maintain as closing coil, just separating brake again; Separating brake maintains, and just can't close a floodgate again).
Summary of the invention
The present invention is directed to above deficiency, the static pulse-width modulation detection of a kind of guide rail installing type type separating brake, combined floodgate supervisory relay are provided.。
The technical solution adopted for the present invention to solve the technical problems is: guide tracked pulsewidth supervisory relay is by the outlet auxiliary relay, photoelectrical coupler, square-wave generator, the peak detection amplifying circuit is electrically connected to be formed, the pulse square wave that adopted 1: 10 detects and monitors branch, closing coil, and the square wave peak current is also reduced to about 2～3mA in addition, and final average standby current only has about 0.2～0.3mA, even if the linear very big branch of right and wrong, closing coil also can only produce the residual voltage of several volts.
Schematic diagram:
As figure, dotted line the right is the external coil that is monitored, and the left side is exactly the schematic diagram of this product, and principle is described as follows: square-wave generator is after powering on, continue to produce 1: 10 square wave, the inferior limit of photoelectrical coupler is in " on-off " state with " enablement and disablement " on former limit always.When the combined floodgate that is monitored (or separating brake) coil disconnected, ended on the former limit of photoelectric coupling circuit, and the peak detection amplification is output as " 0 ", and end on the former limit of photoelectric coupling circuit, and exit relay is failure to actuate; When the combined floodgate that is monitored (or separating brake) coil is connected, the former limit of photoelectric coupling circuit is with inferior limit " on-off " " enablement and disablement ", inferior limit is " on-off " also thereupon, after peak detection amplifying circuit FJF detects this square wave, it is carried out " peak detection-amplification-driving ", output " 1 " at last drives photoelectric coupling circuit former limit conducting, the exit relay action.
Beneficial effect of the present invention: guaranteed the regular event of branch, closing coil and returned, played again monitor divide, the function of closing coil.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention.
Among Fig. 1,1 outlet auxiliary relay, 2,3,4, photoelectrical coupler, 5 closing coils (or switching winding), 6 square-wave generators, 7 peak detection amplifying circuits
Embodiment
Pulse-width modulation detection type supervisory relay is by outlet auxiliary relay 1, photoelectrical coupler 2,3,4,, square-wave generator 6, peak detection amplifying circuit 7 is electrically connected to be formed, as figure, dotted line the right is external closing coil (or switching winding) 5, and the left side is exactly the schematic diagram of this product, and principle is described as follows: square-wave generator 6 is after powering on, continue to produce 1: 10 square wave, the inferior limit of photoelectrical coupler 3 is in " on-off " state with " enablement and disablement " on former limit always.When the combined floodgate that is monitored (or separating brake) coil 5 disconnected, ended on the former limit of photoelectric coupling circuit, and the peak detection amplification is output as " 0 ", and end on photoelectric coupling circuit 4 former limits, and outlet auxiliary relay 1 is failure to actuate; When the combined floodgate that is monitored (or separating brake) coil 5 is connected, the former limit of photoelectric coupling circuit 4 is with inferior limit " on-off " " enablement and disablement ", inferior limit is " on-off " also thereupon, after peak detection amplifying circuit 7 detects this square wave, it is carried out " peak detection-amplification-driving ", output " 1 " at last drives photoelectric coupling circuit 2 former limit conductings, 1 action of outlet auxiliary relay.
Claims (2)
1. a guide tracked pulsewidth supervisory relay is characterized in that: by exporting auxiliary relay, photoelectrical coupler, square-wave generator, peak detection amplifying circuit electrical connection composition; Square-wave generator is after powering on, continue to produce 1: 10 square wave, the inferior limit of photoelectrical coupler is in " on-off " state with " enablement and disablement " on former limit always, when the combined floodgate that is monitored (or separating brake) coil disconnects, end on the former limit of photoelectric coupling circuit, the peak detection amplification is output as " 0 ", and end on the former limit of photoelectric coupling circuit, and exit relay is failure to actuate; When the combined floodgate that is monitored (or separating brake) coil is connected, the former limit of photoelectric coupling circuit is with inferior limit " on-off " " enablement and disablement ", inferior limit is " on-off " also thereupon, after peak detection amplifying circuit FJF detects this square wave, it is carried out " peak detection-amplification-driving ", output " 1 " at last drives photoelectric coupling circuit former limit conducting, the exit relay action.
2. guide tracked pulsewidth supervisory relay as claimed in claim 1 is characterized in that: the pulse square wave that adopted 1: 10 detects and monitors branch, closing coil, and the square wave peak current is also reduced to about 2～3mA in addition, and final average standby current only has about 0.2～0.3mA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101221677A CN102194606A (en) | 2010-03-11 | 2010-03-11 | Guide-rail-type pulse width supervisory relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101221677A CN102194606A (en) | 2010-03-11 | 2010-03-11 | Guide-rail-type pulse width supervisory relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102194606A true CN102194606A (en) | 2011-09-21 |
Family
ID=44602489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101221677A Pending CN102194606A (en) | 2010-03-11 | 2010-03-11 | Guide-rail-type pulse width supervisory relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102194606A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020172924A1 (en) * | 2019-02-28 | 2020-09-03 | 施耐德电器工业公司 | Control method and control device |
-
2010
- 2010-03-11 CN CN2010101221677A patent/CN102194606A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020172924A1 (en) * | 2019-02-28 | 2020-09-03 | 施耐德电器工业公司 | Control method and control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110921 |