CN220933132U - Circuit and system for fault positioning of electric engineering machinery - Google Patents
Circuit and system for fault positioning of electric engineering machinery Download PDFInfo
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- CN220933132U CN220933132U CN202322452427.2U CN202322452427U CN220933132U CN 220933132 U CN220933132 U CN 220933132U CN 202322452427 U CN202322452427 U CN 202322452427U CN 220933132 U CN220933132 U CN 220933132U
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- 238000011835 investigation Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 8
- 230000004807 localization Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The application discloses a circuit and a system for fault location of an electric engineering machine. The circuit comprises: the power supply, a one-key start switch, a controller, a relay and a plurality of power-on circuit status indicator lamps. The power supply is used for supplying power to the plurality of power-on circuit state indicator lamps and the one-key start switch. The one-key start switch is used for sending a power-on wake-up signal to the controller after receiving the voltage. The controller is used for outputting voltage after receiving the power-on wake-up signal. The relay is connected with the controller and used for receiving and transmitting voltage to the plurality of upper circuit state indicating lamps. The power-on circuit state indicator lamps are respectively connected with the power supply, the one-key starting switch, the controller and the relay and used for lighting up and displaying under the condition that the voltage transmitted by the power supply, the one-key starting switch, the controller or the relay is received. Through setting up a plurality of power-on circuit status indicator lamps in the circuit, can fix a position engineering machine power-on fault point respectively to improve the accuracy and the efficiency of circuit fault investigation.
Description
Technical Field
The application relates to the technical field of electric engineering machinery, in particular to a circuit and a system for positioning faults of electric engineering machinery.
Background
The main method for locating the circuit faults of all manufacturers is to check possible fault points one by means of display alarm and practical experience. When a function fails, the engineer will first see if the display receives an input signal. If the input signal is a high-efficiency input signal, sequentially checking whether a power supply supplies power, whether a safety is burnt, whether a switch is effective, whether a wire is open or short-circuited, and the like to judge a fault point; if the signal is the low effective input signal, whether the switch fails, whether the wire is open or not and the like are checked in sequence. If the controller receives the input signal but the controlled object does not respond, whether the controlled object fails, whether the lead is open or short-circuited, whether the lead of the controlled object is well grounded, and the like are sequentially checked. However, if the complete machine has a failure that the power cannot be supplied, the display cannot be turned on, and whether the functional loop is an output loop failure or an input loop failure, which causes the complete machine to be unable to supply power, cannot be monitored through the display. The engineer is required to eliminate possible failure points one by one. Even if the whole machine is powered on, whether the input loop fails or the output loop fails can be judged only by the state of the input signal and the fault code displayed by the display. Especially for pure electric engineering machinery equipment, the workload of fault investigation is greatly increased. For sporadic faults, it is more difficult to locate the fault point. Therefore, the existing technical scheme has the problem that circuit faults of the electric engineering machinery are not accurately and conveniently located.
Disclosure of utility model
The embodiment of the application aims to provide a circuit and a system for positioning faults of an electric engineering machine, which are used for solving the problem that the circuit faults of the electric engineering machine are not accurately and conveniently positioned in the prior art.
To achieve the above object, a first aspect of the present application provides a circuit for fault location of an electric engineering machine, the circuit comprising:
The power supply is used for supplying power to the power-on circuit state indicator lamp and the one-key starting switch;
the one-key starting switch is connected with the power supply and is used for sending a power-on wake-up signal to the controller after receiving the voltage;
The controller is connected with the one-key starting switch and is used for outputting voltage under the condition of receiving a power-on wake-up signal;
The relay is connected with the controller and used for receiving and transmitting the voltage to the plurality of power-on circuit state indicator lamps;
The power-on circuit state indicator lamps are respectively connected with the power supply, the one-key starting switch, the controller and the relay and used for lighting up and displaying under the condition that the voltage transmitted by the power supply, the one-key starting switch, the controller or the relay is received.
In an embodiment of the present application, a controller includes:
The power-on wake-up signal terminal is used for receiving the power-on wake-up signal;
And the output signal end is used for outputting voltage to the relay.
In an embodiment of the present application, the circuit further includes a fuse resistor and a diode, and the one-key start switch includes:
The knob is normally opened and is connected with the power-on wake-up signal end through a diode and is used for sending a power-on wake-up signal to the power-on wake-up signal end;
and the common end of the switch is connected with a power supply through a safety resistor.
In an embodiment of the present application, a plurality of power-on circuit status indicator lamps includes:
the first power-on circuit state indicator lamp is connected with a power supply through a safety resistor and is used for lighting up and displaying under the condition of receiving voltage transmitted by the power supply;
the second power-on circuit state indicator lamp is connected with the normally open end of the knob and is used for lighting up and displaying under the condition that the voltage transmitted by the normally open end of the knob is received;
And the third power-on circuit state indicator lamp is connected with the normally open end of the knob through a diode and is used for lighting up and displaying under the condition of receiving the voltage transmitted by the normally open end of the knob.
In an embodiment of the present application, the plurality of power-on circuit status indicator lamps further includes:
The fourth power-on circuit state indicator lamp is connected with the output signal end and is used for lighting up and displaying under the condition that the voltage transmitted by the output signal end is received;
the fifth power-on circuit state indicator lamp is connected with the relay and used for lighting up and displaying under the condition that the voltage transmitted by the relay is received;
and the sixth power-on circuit state indicator lamp is connected with the relay and used for lighting up and displaying under the condition of receiving the voltage transmitted by the relay.
In an embodiment of the present application, the one-touch start switch further includes:
the button is normally opened and is used for being connected with the common end of the switch under the condition that the one-key starting switch is a starting gear.
In an embodiment of the present application, the one-touch start switch further includes:
Under the condition that the one-key starting switch is in a power-on gear, the normal opening end of the knob is connected with the common end of the switch.
In an embodiment of the present application, the controller includes a power supply terminal, and the circuit further includes:
The display is connected with the power end of the controller through the safety resistor and is used for carrying out circuit fault positioning display under the condition that the voltage transmitted by the power end through the safety resistor is received.
In an embodiment of the present application, the circuit further includes:
the negative electrode switch is connected with the power supply and used for sending an opening signal to the power supply.
In a second aspect, the application provides a system for fault location of an electric engineering machine, which comprises a circuit for fault location of the electric engineering machine.
Through the technical scheme, the circuit for positioning the fault of the electric engineering machinery can comprise a power supply, a one-key starting switch, a controller, a relay and a plurality of power-on circuit state indicator lamps. The power supply is used for supplying power to the power-on circuit state indicator lamp and the one-key starting switch. The one-key starting switch is connected with the power supply and used for sending a power-on wake-up signal to the controller after receiving the voltage. The controller is connected with the one-key start switch and is used for outputting voltage under the condition of receiving the power-on wake-up signal. The relay is connected with the controller and used for receiving and transmitting voltage to the plurality of upper circuit state indicating lamps. The power-on circuit state indicator lamps are respectively connected with the power supply, the one-key starting switch, the controller and the relay and used for lighting up and displaying under the condition that the voltage transmitted by the power supply, the one-key starting switch, the controller or the relay is received. Through setting up a plurality of power-on circuit status indicator lamps in the circuit, can fix a position engineering machine power-on fault point respectively to improve the accuracy and the efficiency of circuit fault investigation.
Additional features and advantages of embodiments of the application will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain, without limitation, the embodiments of the application. In the drawings:
Fig. 1 schematically shows a block diagram of a circuit for fault localization of an electric engineering machine according to an embodiment of the application.
Description of the reference numerals
110. One-key starting switch for power supply 120
121. Knob constant open end 122 switch common end
123. Button constant-start 130 controller
131. The power-on wake-up signal end 132 outputs a signal end
133. Power supply 140 relay
150 First power-on circuit status indicator lamps 151 of a plurality of power-on circuit status indicator lamps
152 Second power-on circuit status indicator 153 and third power-on circuit status indicator
154 Fourth power-on circuit status indicator 155 and fifth power-on circuit status indicator
156 Sixth power-up circuit status indicator 160 safety resistor
170. Diode 180 display
190. Negative electrode switch
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it should be understood that the detailed description described herein is merely for illustrating and explaining the embodiments of the present application, and is not intended to limit the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present application, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.
Fig. 1 schematically shows a block diagram of a circuit for fault localization of an electric engineering machine according to an embodiment of the application. As shown in fig. 1, an embodiment of the present application provides a circuit for fault location of an electric engineering machine, where the circuit may include:
A power supply 110 for supplying power to the power-on circuit status indicator light 150 and the one-key start switch 120;
A one-key start switch 120 connected to the power supply 110 for sending a power-on wake-up signal to the controller 130 after receiving the voltage;
A controller 130 connected to the one-key start switch 120 for outputting a voltage upon receiving a power-on wake-up signal;
A relay 140 connected to the controller 130 for receiving and transmitting voltages to the plurality of power-on circuit status indicators 150;
The plurality of power-on circuit status indicator lamps 150 are respectively connected with the power supply 110, the one-button start switch 120, the controller 130 and the relay 140, and are used for lighting up and displaying when receiving the voltage transmitted by the power supply 110, the one-button start switch 120, the controller 130 or the relay 140.
In the embodiment of the application, the existing electric engineering machinery fault positioning main method is to check possible fault points one by means of display alarm and actual experience. When a function fails, the engineer will first see if the display receives an input signal. If the signal is a high-efficiency input signal, sequentially checking whether the power supply supplies power, whether the insurance is burnt, whether the switch is effective, and whether the lead is open or short-circuited to judge a fault point; if the signal is the low effective input signal, whether the switch fails or not and whether the wire is open or not are checked in sequence. If the controller receives the input signal but the controlled object does not respond, whether the controlled object fails, whether the lead is open or short-circuited or not and whether the lead of the controlled object is well grounded or not are checked in sequence. However, in this scheme, if the complete machine has a failure that can not be powered on, the display can not be turned on, and whether the functional loop is an output loop failure or an input loop failure can not be monitored by the display, so that the complete machine can not be powered on. The engineer is required to eliminate possible failure points one by one. Even if the whole machine is powered on, whether the input loop fails or the output loop fails can be judged only by the state of the input signal and the fault code displayed by the display. Especially for the pure electric excavator, the workload of fault investigation is greatly increased. For sporadic faults, it is more difficult to locate the fault point.
The fault locating circuit of the electric engineering machinery comprises a power supply 110, a one-key start switch 120, a controller 130, a relay 140 and a plurality of power-on circuit status indicator lamps 150.
The power supply 110 may be used to power the power-on circuit status indicator light 150 and the push-to-start switch 120. For example, the power source 110 may be a battery. The push-to-start switch 120 is coupled to the power supply 110 and may be used to send a power-on wake-up signal to the controller 130 after receiving a voltage. The controller 130 is connected to the one-touch start switch 120 and can be used to output a voltage to the relay 140 upon receipt of a power-on wake-up signal. The relay 140 is connected to the controller 130, and may be configured to receive the voltage transmitted by the controller 130 and transmit the voltage to the plurality of power-up status indicators 150. The plurality of power-on circuit status indicator lamps 150 may be disposed at a plurality of locations of the circuit, respectively. For example, a plurality of power-on circuit status indicators 150 may be respectively connected to the power source 110, the one-touch start switch 120, the controller 130, and the relay 140 for lighting up display upon receiving the voltage transmitted from the power source 110, the one-touch start switch 120, the controller 130, or the relay 140.
Through the technical scheme, the circuit for positioning the fault of the electric engineering machinery can comprise a power supply, a one-key starting switch, a controller, a relay and a plurality of power-on circuit state indicator lamps. The power supply is used for supplying power to the power-on circuit state indicator lamp and the one-key starting switch. The one-key starting switch is connected with the power supply and used for sending a power-on wake-up signal to the controller after receiving the voltage. The controller is connected with the one-key start switch and is used for outputting voltage under the condition of receiving the power-on wake-up signal. The relay is connected with the controller and used for receiving and transmitting voltage to the plurality of upper circuit state indicating lamps. The power-on circuit state indicator lamps are respectively connected with the power supply, the one-key starting switch, the controller and the relay and used for lighting up and displaying under the condition that the voltage transmitted by the power supply, the one-key starting switch, the controller or the relay is received. Through setting up a plurality of power-on circuit status indicator lamps in the circuit, can fix a position engineering machine power-on fault point respectively to improve the accuracy and the efficiency of circuit fault investigation.
As shown in fig. 1, in an embodiment of the present application, the controller 130 may include:
a power-on wake-up signal terminal 131 for receiving a power-on wake-up signal;
the output signal terminal 132 is used for outputting a voltage to the relay 140.
Specifically, the controller 130 may include a power-on wake-up signal terminal 131 and an output signal terminal 132. The power-on wake-up signal terminal 131 is configured to receive a power-on wake-up signal. The output signal terminal 132 is used for outputting a signal, for example, an ON signal may be output.
As shown in fig. 1, in an embodiment of the present application, the circuit may further include a dump resistor 160 and a diode 170, and the one-key start switch 120 may include:
the knob normal end 121 is connected with the power-on wake-up signal end 131 through a diode 170 and is used for sending a power-on wake-up signal to the power-on wake-up signal end 131;
The switch common 122 is connected to the power supply 110 through a dump resistor 160.
Specifically, the circuit for fault localization of the electric work machine may further include a dump resistor 160 and a diode 170. The one-touch activated switch 120 may include a knob constant end 121 and a switch common end 122. The knob constant end 121 may be connected to the power-on wake-up signal end 131 of the controller 130 through a diode 170. The knob constant end 121 may be used to send a power-up wake-up signal to the power-up wake-up signal end 131. The switch common 122 may be connected to the power supply 110 through a dump resistor 160 to access the power supply. By providing a dump resistor 160 in the circuit for fault localization of the electric engineering machine, a short circuit of the bulb due to excessive current can be avoided.
As shown in fig. 1, in an embodiment of the present application, the plurality of power-on circuit status indicator lamps 150 may include:
The first power-on circuit status indicator 151 is connected to the power supply 110 through a safety resistor 160, and is used for lighting up and displaying when receiving the voltage transmitted by the power supply 110;
A second power-on circuit status indicator 152 connected to the knob normal-open end 121 for lighting up display upon receiving the voltage transmitted from the knob normal-open end 121;
The third power-on circuit status indicator 153 is connected to the knob normal-open end 121 via a diode 170, and is configured to perform a lighting display when receiving the voltage transmitted from the knob normal-open end 121.
Specifically, the electric work machine fault location circuitry may include a plurality of power-on circuit status indicator lights 150. A plurality of power-on circuit status indicator lamps 150 may be provided at a plurality of positions of the circuit, respectively, to perform circuit fault point diagnosis by lighting the lamps. A first power-on circuit status indicator 151 may be included therein. The first power-on circuit status indicator 151 may be connected to the power source 110 through the safety resistor 160, and is used for performing lighting display when receiving the voltage transmitted by the power source 110, so as to determine that the states of the power source 110, the safety resistor 160 and the wires connected therebetween are normal. A second power-on circuit status indicator light 152 may also be included. The second power-on circuit status indicator 152 may be connected to the knob normal-open end 121, and is used for performing lighting display when receiving the voltage transmitted by the knob normal-open end 121, so as to determine that the fuse resistor 160, the one-key start switch 120 and the wire connected therebetween are in normal status. A third power-on circuit status indicator 153 may also be included. The third power-on circuit status indicator 153 may be connected to the normal end 121 of the knob through the diode 170, and is used for performing a lighting display when receiving the voltage transmitted from the normal end 121 of the knob, so as to determine that the wires of the one-button start switch 130, the diode 170 and the connection therebetween are normal. The circuit fault point can be positioned by arranging the power-on circuit state indicator lamps at different positions.
As shown in fig. 1, in an embodiment of the present application, the plurality of power-on circuit status indicator lamps 150 may further include:
A fourth power-on circuit status indicator 154 connected to the output signal terminal 132 for lighting up the display when receiving the voltage transmitted from the output signal terminal 132;
a fifth power-on circuit status indicator 155 connected to the relay 140 for lighting up display upon receiving the voltage transmitted from the relay 140;
The sixth power-on circuit status indicator 156 is connected to the relay 140, and is configured to perform a lighting display when receiving the voltage transmitted by the relay 140.
Specifically, the plurality of power-on circuit status indicators 150 may further include a fourth power-on circuit status indicator 154. The fourth power-on status indicator 154 may be connected to the output signal terminal 132, and configured to perform a lighting display when receiving the voltage transmitted by the output signal terminal 132, so as to determine that the diode 170, the controller 130, and the wires connected therebetween are normal. A fifth power-on circuit status indicator 155 may also be included. The fifth power-on circuit status indicator 155 may be connected to the relay 140, and configured to perform lighting display when receiving the voltage transmitted by the relay 140, so as to determine that the power supply of the wire connected to the No. 30 terminal of the main contact 30 of the relay 140 is normal. A sixth powered circuit status indicator light 156 may also be included. The sixth power-on circuit status indicator 156 may be connected to the relay 140, and is configured to perform a lighting display when receiving the voltage transmitted by the relay 140, so as to determine that the relay 6 is working normally. The circuit fault point can be positioned by arranging the power-on circuit state indicator lamps at different positions.
As shown in fig. 1, in an embodiment of the present application, the one-touch start switch 120 may further include:
The button normally open end 123 is used for being connected with the switch common end 122 in the case that the one-button start switch 120 is in a start gear.
In the case where the one-touch switch 120 is in a power-on gear, the knob constant-open end 121 is connected to the switch common end 122.
Specifically, the one-touch activated switch 120 may also include a button normally open end 123. The one-touch activated switch 120 may include, but is not limited to, a start gear and a power-up gear (gear 1). After the driver presses the one-touch start switch 120, the one-touch start switch 120 is in the start gear. The button normally open end 123 may be connected to the switch common 122 in the case of a one-touch start switch 120 being in a start gear. In the case where the one-touch switch 120 is in a power-on gear, the knob constant-open end 121 is connected to the switch common end 122. The power supply 110 is connected to the power supply, and the knob normal-open end 121 sends a power-on wake-up signal to the controller 130 when receiving the power supply
As shown in fig. 1, in an embodiment of the present application, the controller 130 may include a power terminal 133, and the circuit may further include:
The display 180 is connected to the power terminal 133 of the controller 130 through the fuse resistor 160, and is used for performing circuit fault location display when receiving the voltage transmitted by the power terminal 133 through the fuse resistor 160.
Specifically, the controller 130 may further include a power terminal 133. The power terminal 133 may be used to output a voltage to an external electrical device. The electric work machine fault location circuitry may also include a display 170. The display may be connected to the power terminal 133 of the controller 130 through a dump resistor 160. The power terminal 133 of the controller 130 outputs a voltage to the display 170 through the fuse resistor 160. The display may be used to provide a circuit fault location display upon receipt of the voltage transmitted by the power terminal 133 through the fuse resistor 160. The resistance of the fuse resistor 160 can be adjusted according to the actual requirement of the circuit.
As shown in fig. 1, in an embodiment of the present application, the circuit may further include:
the negative electrode switch 190 is connected to the power supply 110, and is configured to send an on signal to the power supply 110.
Specifically, the electric work machine fault location circuit may also include a negative switch 190. The negative switch 190 is the main power switch. The negative switch 190 may be connected to the power supply 110, and the power supply 110 may provide power to the circuit with the negative switch 190 open.
The embodiment of the application also provides a system for positioning the faults of the electric engineering machinery, which comprises the circuit for positioning the faults of the electric engineering machinery.
Through the technical scheme, the circuit for positioning the fault of the electric engineering machinery can comprise a power supply, a one-key starting switch, a controller, a relay and a plurality of power-on circuit state indicator lamps. The power supply is used for supplying power to the power-on circuit state indicator lamp and the one-key starting switch. The one-key starting switch is connected with the power supply and used for sending a power-on wake-up signal to the controller after receiving the voltage. The controller is connected with the one-key start switch and is used for outputting voltage under the condition of receiving the power-on wake-up signal. The relay is connected with the controller and used for receiving and transmitting voltage to the plurality of upper circuit state indicating lamps. The power-on circuit state indicator lamps are respectively connected with the power supply, the one-key starting switch, the controller and the relay and used for lighting up and displaying under the condition that the voltage transmitted by the power supply, the one-key starting switch, the controller or the relay is received. Through setting up a plurality of power-on circuit status indicator lamps in the circuit, can fix a position engineering machine power-on fault point respectively to improve the accuracy and the efficiency of circuit fault investigation.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
Claims (10)
1. A circuit for fault location of an electric work machine, the circuit comprising:
The power supply is used for supplying power to the power-on circuit state indicator lamp and the one-key starting switch;
The one-key starting switch is connected with the power supply and is used for sending a power-on wake-up signal to the controller after receiving voltage;
The controller is connected with the one-key starting switch and is used for outputting the voltage under the condition that the power-on wake-up signal is received;
the relay is connected with the controller and used for receiving and transmitting the voltage to a plurality of power-on circuit state indicator lamps;
The power-on circuit state indicator lamps are respectively connected with the power supply, the one-key starting switch, the controller and the relay and used for lighting up and displaying under the condition that the voltage transmitted by the power supply, the one-key starting switch, the controller or the relay is received.
2. The circuit of claim 1, wherein the controller comprises:
The power-on wake-up signal terminal is used for receiving the power-on wake-up signal;
And the output signal end is used for outputting voltage to the relay.
3. The circuit of claim 2, further comprising a dump resistor and a diode, wherein the one-touch activated switch comprises:
the knob is normally started and is connected with the power-on wake-up signal end through the diode and is used for sending a power-on wake-up signal to the power-on wake-up signal end;
and the public end of the switch is connected with the power supply through the safety resistor.
4. The circuit of claim 3, wherein the plurality of powered circuit status indicators comprises:
The first power-on circuit state indicator lamp is connected with the power supply through the safety resistor and is used for lighting up and displaying under the condition that the voltage transmitted by the power supply is received;
the second power-on circuit state indicator lamp is connected with the normally open end of the knob and is used for lighting up and displaying under the condition that the voltage transmitted by the normally open end of the knob is received;
And the third power-on circuit state indicator lamp is connected with the normally open end of the knob through the diode and is used for lighting up and displaying under the condition of receiving the voltage transmitted by the normally open end of the knob.
5. The circuit of claim 3, wherein the plurality of powered circuit status indicators further comprises:
The fourth power-on circuit state indicator lamp is connected with the output signal end and is used for lighting up and displaying under the condition that the voltage transmitted by the output signal end is received;
The fifth power-on circuit state indicator lamp is connected with the relay and is used for lighting up and displaying under the condition that the voltage transmitted by the relay is received;
And the sixth power-on circuit state indicator lamp is connected with the relay and is used for lighting up and displaying under the condition of receiving the voltage transmitted by the relay.
6. The circuit of claim 3, wherein the one-touch activated switch further comprises:
the button is normally opened and is used for being connected with the common end of the switch under the condition that the one-key starting switch is a starting gear.
7. The circuit of claim 3, wherein the one-touch activated switch further comprises:
And under the condition that the one-key starting switch is in a power-on gear, the normal opening end of the knob is connected with the common end of the switch.
8. The circuit of claim 1, wherein the controller includes a power supply terminal, the circuit further comprising:
And the display is connected with the power end of the controller through the safety resistor and is used for carrying out circuit fault positioning display under the condition that the voltage transmitted by the power end through the safety resistor is received.
9. The circuit of claim 1, wherein the circuit further comprises:
and the negative electrode switch is connected with the power supply and used for sending an opening signal to the power supply.
10. A system for fault location of an electric engineering machine, characterized by comprising a circuit for fault location of an electric engineering machine according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322452427.2U CN220933132U (en) | 2023-09-11 | 2023-09-11 | Circuit and system for fault positioning of electric engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322452427.2U CN220933132U (en) | 2023-09-11 | 2023-09-11 | Circuit and system for fault positioning of electric engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220933132U true CN220933132U (en) | 2024-05-10 |
Family
ID=90933837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322452427.2U Active CN220933132U (en) | 2023-09-11 | 2023-09-11 | Circuit and system for fault positioning of electric engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220933132U (en) |
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2023
- 2023-09-11 CN CN202322452427.2U patent/CN220933132U/en active Active
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