CN217387040U - Electrical switch operation loop monitoring system - Google Patents
Electrical switch operation loop monitoring system Download PDFInfo
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- CN217387040U CN217387040U CN202221279268.XU CN202221279268U CN217387040U CN 217387040 U CN217387040 U CN 217387040U CN 202221279268 U CN202221279268 U CN 202221279268U CN 217387040 U CN217387040 U CN 217387040U
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- electrical switch
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- monitoring system
- switching
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Abstract
The utility model belongs to the technical field of electrical switch combined floodgate, tripping operation return circuit detects technique and specifically relates to an electrical switch operation return circuit monitoring system is related to, including the control circuit that series connection's rectification power supply, shunt and electrical switch divide/close the switching-on return circuit and switch in proper order, wherein, the control circuit that electrical switch divides/close the switching-on return circuit and switches in electrical switch operation return circuit monitoring system with electrical switch combined floodgate return circuit or electrical switch separating brake return circuit. When the closing loop or the opening loop of the electric switch is connected into the monitoring system, the voltage drop reaction generated by the change of the loop resistance in the shunt is utilized to judge whether the operation loop of the electric switch is normal. Therefore, the utility model discloses an electrical switch operation circuit monitoring system, usable external resistance changes, reaches online to electrical switch combined floodgate, the full loop state of tripping operation detects, discovers the return circuit in advance unusual, does to early discovery early processing, improves switch separating brake, combined floodgate reliability.
Description
Technical Field
The utility model belongs to the technical field of the electrical switch combined floodgate, tripping operation return circuit detects and specifically relates to an electrical switch operation return circuit monitoring system is related to.
Background
With the development of society and economy, people have increasingly high requirements on power supply reliability, power quality, service quality and efficiency of electric power parts, and the like. The electric switch is used for switching on and switching off electrical equipment, can reliably switch off when the power system fails to work and remove fault points in order to ensure the safe operation of the power system and prevent personal injury, and can be switched on to recover power supply according to the operation requirement of the system. Therefore, the fault detection and processing of the closing and opening circuits of the electrical switch are important parts for ensuring the electrical switch to operate correctly.
However, in the prior art, no scheme for monitoring the online state of the faults of the closing and opening loops of the electrical switch is available.
Therefore, to the above-mentioned problem, the utility model provides an electrical switch operation return circuit monitoring system, this system can judge whether have abnormal conditions such as wiring contact failure, broken string according to the combined floodgate of electrical switch and the change of separating brake return circuit resistance, and the fault discovery to the combined floodgate of electrical switch and separating brake return circuit has important meaning.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electrical switch operation return circuit monitored control system, this system can judge whether have abnormal conditions such as wiring contact failure, broken string according to the change of separating brake or combined floodgate return circuit resistance, and guarantee electrical switch can separate brake or combined floodgate at any time.
The utility model provides an electric switch operation loop monitoring system, which comprises a rectification power supply, a shunt and a control circuit for switching an electric switch switching-off/switching-on loop which are connected in series in sequence,
the control circuit for switching the opening/closing loop of the electrical switch is used for connecting the closing loop or the opening loop of the electrical switch into the monitoring system of the operation loop of the electrical switch.
Preferably, the power supply system further comprises an isolation diode, wherein one end of the isolation diode is connected with the shunt, and the other end of the isolation diode is connected with a control circuit for switching the on/off loop of the electrical switch, so as to isolate the rectified power supply from a power supply in the control circuit for switching the on/off loop of the electrical switch.
Preferably, as the technical solution, the control circuit for switching the opening/closing circuit of the electrical switch includes an opening circuit of the electrical switch and an opening circuit of the electrical switch, which are connected in parallel.
Preferably, as the technical solution, the control circuit for switching the opening/closing loop of the electrical switch further includes a relay and an electrical switch normally open auxiliary contact, which are connected in series, wherein the relay controls the opening/closing loop of the electrical switch or the opening/closing loop of the electrical switch to access the monitoring system of the operation loop of the electrical switch by closing or opening the electrical switch normally open auxiliary contact.
Preferably, in the technical solution, the control circuit for switching the opening/closing loop of the electrical switch further includes an external power supply, and the external power supply is configured to provide a working power supply for the relay.
Preferably, in the present technical solution, two ends of the shunt are connected in parallel with a voltmeter.
Preferably, the monitoring system further comprises a current limiting resistor, wherein the current limiting resistor is connected in series in the electrical switch operation loop monitoring system and is used for limiting the current in the system and preventing the switch from being switched off or on by mistake when the monitoring system fails.
Preferably, in the technical solution, an external power supply of the rectification power supply is an alternating current 220V.
Preferably, in this embodiment, the external power source is a dc 220V.
The utility model discloses an electrical switch operation circuit monitoring system has following technological effect at least:
the utility model discloses an electrical switch operation circuit monitored control system, including series connection's rectifier power supply in proper order, the control circuit that shunt and electrical switch divide/close a floodgate return circuit and switch over, wherein, the control circuit that electrical switch divides/close a floodgate return circuit to switch over can insert electrical switch closing circuit or electrical switch separating brake return circuit into electrical switch operation circuit monitored control system, when electrical switch closing circuit or electrical switch separating brake return circuit insert back among the monitored control system, utilize the pressure drop reaction that the change of resistance size produced at the shunt, judge whether electrical switch operation circuit is normal. Therefore, the utility model discloses an electrical switch operation circuit monitoring system, usable voltmeter indicator voltage change reach and detect electrical switch combined floodgate, the full loop state of tripping operation on line, discover the return circuit anomaly in advance, do to early discovery early processing, improve switch separating brake, combined floodgate reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the monitoring system for the electrical switch operation circuit of the present invention monitoring the condition of the closing circuit of the electrical switch;
fig. 2 is a schematic view of the electrical switch operation circuit monitoring system of the present invention monitoring the condition of the electrical switch open circuit.
Description of reference numerals:
1: a rectified power supply; 2: a flow divider; 3: an electrical switch closing loop; 4: an electrical switch opening loop; 5: an isolation diode; 6: a relay; 7: the electric switch is provided with a normally open auxiliary contact; 8: a voltmeter; 9: a current limiting resistor.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. Furthermore, the terms "mounted," "connected," and "coupled" are to be construed broadly and may include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model provides an electrical switch operation circuit monitored control system, including the control circuit that series connection's rectifier power supply 1, shunt 2 and electrical switch divide/close a floodgate return circuit switch in proper order, wherein, the control circuit that electrical switch divides/close a floodgate return circuit to switch over is used for inserting electrical switch operation circuit monitored control system with electrical switch combined floodgate return circuit 3 or electrical switch separating brake return circuit 4. The rectifier power supply 1 is used for providing a low-voltage injection voltage source of a control circuit for switching an opening/closing loop of an electrical switch; the shunt 2 can display the insulation state of the opening/closing loop of the electrical switch. The specific working principle is as follows: the control circuit for switching the opening/closing loop of the electric switch can connect the closing loop 3 or the opening loop 4 of the electric switch into the monitoring system of the operation loop of the electric switch, and after the closing loop 3 or the opening loop 4 of the electric switch is connected into the monitoring system, the voltage drop reaction generated in the shunt 2 by the change of the resistance is utilized to judge whether the operation loop of the electric switch is normal.
For preventing the power among the control circuit that electrical switch divides/closes a floodgate return circuit to switch from influencing monitored control system the utility model discloses a specific embodiment still includes isolation diode 5, isolation diode 5's one end with shunt 2 is connected, the other end with the control circuit that electrical switch divides/closes a floodgate return circuit to be connected for with rectified power 1 with the power among the control circuit that electrical switch divides/closes a floodgate return circuit to switch from keeps apart. The isolating diode 5 has a reverse cut-off function, and when the electrical switch is switched on or off, the isolating diode 5 bears reverse voltage to cut off, so that the operating voltage of the electrical switch is prevented from entering a rectifying circuit, and the monitoring system equipment is prevented from being damaged.
Specifically, the utility model discloses a control circuit that electrical switch separating/closing circuit switched includes parallel connection's electrical switch closing circuit 3 and electrical switch separating brake circuit 4. The monitoring of the state of the whole loop under different states of the closing and opening of the electrical switch can be realized, the loop abnormity is found in advance, the early detection and the early processing are realized, and the reliability of the opening and closing of the switch is improved.
In actual operation, in order to endow the monitoring system with functions of automatic adjustment, safety protection, conversion circuit and the like, the control circuit for switching the opening/closing loop of the electrical switch further comprises a relay 6 and an electrical switch normally open auxiliary contact 7 which are connected in series, wherein the relay 6 controls the opening/closing loop 3 or the opening/closing loop 4 of the electrical switch to be connected into the monitoring system of the electrical switch operation loop through the closing or opening of the electrical switch normally open auxiliary contact 7. When the normally open auxiliary contact 7 of the electrical switch is disconnected, the relay 6 does not act, the normally open contact of the relay is disconnected, the electrical switch opening loop 4 is cut off from the monitoring loop, meanwhile, the normally closed contact of the relay is closed, the electrical switch closing loop 3 is connected into the monitoring loop, and the electrical switch closing loop 3 is monitored in the state; similarly, when the normally open auxiliary contact 7 of the electric switch is closed, the relay 6 acts, the normally closed contact is opened to cut off the closing loop 3 of the electric switch from the monitoring loop, and the normally open contact is closed to connect the opening loop 4 of the electric switch into the monitoring loop, so as to monitor the opening loop 4 of the electric switch.
Specifically, the control circuit for switching the opening/closing loop of the electrical switch further comprises an external power supply, and the external power supply is used for providing a working power supply for the relay 6.
In order to reflect the change of the resistance in the monitoring loop in real time, two ends of the shunt 2 are connected with a voltmeter 8 in parallel.
In order to further prevent the injected external power rectification part from breaking down and then the high voltage power supply causes the electrical switch to be switched on or off by mistake, the utility model discloses a specific embodiment still includes current limiting resistor 9, current limiting resistor 9 series connection is in the electrical switch operation loop monitoring system.
On the basis of the above technical solution, it is further preferable that the external power supply of the rectification power supply 1 is an alternating current 220V; the external power supply is direct current 220V.
As shown in fig. 1, an ac 220V power supply is turned on, rectified into a low-voltage 36V power supply by a rectification power supply 1, and injected into an electrical switch on/off circuit, and since the voltage is lower than the on and off voltages of the electrical switch, the electrical switch is not turned on or off, and meanwhile, when the electrical switch is turned on or off, the isolation diode 5 bears a reverse voltage and is turned off and not turned on because the on/off operation voltage is greater than the injection voltage, and the isolation diode is not broken into a monitoring circuit, thereby causing damage to equipment.
As shown in fig. 1, the abnormality of the closing circuit 3 of the electrical switch is monitored, at this time, when the normally open auxiliary contact 7 of the electrical switch is opened, the relay 6 does not act, the normally open contact is opened to cut the opening circuit 4 of the electrical switch from the monitoring circuit, and the normally closed contact is closed to connect the closing circuit 3 of the electrical switch into the monitoring circuit, at this state, the closing circuit 3 of the electrical switch is monitored, at this time, the display value of the voltmeter 8 corresponds to the current resistance voltage value of the closing circuit, and a mark is made on the voltmeter 8.
As shown in fig. 2, the abnormality of the electrical switch opening circuit 4 is monitored, at this time, when the electrical switch normally open auxiliary contact 7 is closed, the relay 6 acts, the normally closed contact is opened to cut the electrical switch closing circuit 3 from the monitoring circuit, and the normally open contact is closed to connect the electrical switch opening circuit 4 into the monitoring circuit, the electrical switch opening circuit 4 is monitored under the state, at this time, the display value of the voltmeter 8 corresponds to the current opening circuit resistance voltage value, and a mark is made on the voltmeter 8.
Judging the running loop state:
1. the value displayed by the voltmeter 8 is smaller than the sign value, which shows that the monitored opening or closing loop has the abnormity of bad contact of the connecting line, increased contact resistance in the loop and the like.
2. The display value of the voltmeter 8 is larger than the sign value, which indicates that the monitored opening or closing loop has equipment short circuit abnormality in the loop.
Therefore, the utility model discloses a monitoring system passes through the change of voltmeter 8 display values in the return circuit can effectual monitoring electrical switch separating brake or closing operation return circuit in the resistance change, reaches and judges whether electrical switch separating brake or closing operation return circuit are normal, has improved equipment operational reliability
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. The monitoring system for the electric switch operation loop is characterized by comprising a rectifying power supply (1), a shunt (2) and a control circuit for switching an opening/closing loop of an electric switch, which are sequentially connected in series,
the control circuit for switching the opening/closing loop of the electrical switch is used for connecting the closing loop (3) or the opening loop (4) of the electrical switch into the monitoring system of the operation loop of the electrical switch.
2. An electrical switching operation loop monitoring system according to claim 1, further comprising an isolation diode (5), one end of the isolation diode (5) being connected to the shunt (2) and the other end being connected to the control circuit of the electrical switching on/off loop switching for isolating the rectified power supply (1) from the power supply in the control circuit of the electrical switching on/off loop switching.
3. An electrical switching operation circuit monitoring system according to claim 1, wherein the control circuit for switching of the electrical switching on/off circuit comprises an electrical switching on circuit (3) and an electrical switching off circuit (4) connected in parallel.
4. The electrical switching operation circuit monitoring system according to claim 3, wherein the control circuit for switching the electrical switching opening/closing circuit further comprises a relay (6) and an electrical switching normally open auxiliary contact (7) connected in series, wherein the relay (6) controls the electrical switching closing circuit (3) or the electrical switching opening circuit (4) to be connected to the electrical switching operation circuit monitoring system by closing or opening the electrical switching normally open auxiliary contact (7).
5. An electrical switch operating circuit monitoring system according to claim 4, wherein the control circuit for electrical switch opening/closing circuit switching further comprises an external power supply for providing operating power to the relay (6).
6. An electrical switch operating circuit monitoring system according to claim 1, characterized in that a voltmeter (8) is connected in parallel across the shunt (2).
7. An electrical switching operation circuit monitoring system according to claim 1 further comprising a current limiting resistor (9), said current limiting resistor (9) being connected in series in the electrical switching operation circuit monitoring system.
8. An electrical switch operation loop monitoring system as claimed in claim 1, wherein the external power supply of the rectified power supply (1) is 220V ac.
9. An electrical switch operating circuit monitoring system as claimed in claim 5 wherein the external power source is DC 220V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221279268.XU CN217387040U (en) | 2022-05-25 | 2022-05-25 | Electrical switch operation loop monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221279268.XU CN217387040U (en) | 2022-05-25 | 2022-05-25 | Electrical switch operation loop monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217387040U true CN217387040U (en) | 2022-09-06 |
Family
ID=83090338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221279268.XU Active CN217387040U (en) | 2022-05-25 | 2022-05-25 | Electrical switch operation loop monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217387040U (en) |
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2022
- 2022-05-25 CN CN202221279268.XU patent/CN217387040U/en active Active
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