CN214337539U - Delay power-off tripping device for output switch working power supply of diesel generating set - Google Patents
Delay power-off tripping device for output switch working power supply of diesel generating set Download PDFInfo
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- CN214337539U CN214337539U CN202120080202.7U CN202120080202U CN214337539U CN 214337539 U CN214337539 U CN 214337539U CN 202120080202 U CN202120080202 U CN 202120080202U CN 214337539 U CN214337539 U CN 214337539U
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Abstract
The application relates to a device for delayed power-off tripping of an output switch working power supply of a diesel generating set, which comprises the diesel generating set, a load power utilization end, a contactor and a voltage-stabilizing delay device; the voltage-stabilizing delay device comprises an AC/DC rectifying module, a voltage-stabilizing module, a resistor R and a capacitor C; the main contact of the contactor is connected between the diesel generating set and the power utilization end of the load in series, and the coil of the contactor is connected with the output end of the voltage-stabilizing delay device; the input end of the voltage-stabilizing time delay device is connected with the main contact of the contactor; the AC/DC rectifying module, the voltage stabilizing module, the resistor R and the capacitor C are all connected in parallel. When the output voltage of the diesel generating set suddenly drops due to sudden load change, the voltage-stabilizing time-delay device can meet the maintaining voltage of the action coil of the contactor, the main contact of the contactor is kept closed, and the power end of the load is kept electrified to work; the problems that the output switch of the diesel generating set is immediately tripped due to voltage mutation, and the power consumption end of the load is instantly powered off are solved.
Description
Technical Field
The application relates to the field of power supply control of diesel generating sets, in particular to a device for delayed power-off tripping of an output switch working power supply of a diesel generating set.
Background
The phenomenon of sudden drop of the output voltage can occur when the diesel generator set is in the moment of power utilization of a load, and the output voltage of the diesel generator set is recovered to be normal after about 3 seconds. At the moment, the output voltage of the diesel generator set suddenly drops, so that the phenomenon of mistaken tripping of an output switch of the diesel generator set is easy to occur, and the normal power utilization of a load is influenced.
Disclosure of Invention
An object of the utility model is to provide a device of diesel generating set output switch working power supply time delay power-off tripping operation, under the original working power supply sudden change state of diesel generating set output switch working coil, maintain diesel generating set output switch working coil's working power supply, prevent output switch mistake tripping operation.
The utility model adopts the technical proposal that: a device for delayed power-off tripping of an output switch working power supply of a diesel generating set comprises the diesel generating set, a load power utilization end, a contactor and a voltage-stabilizing delay device; the voltage-stabilizing delay device comprises an AC/DC rectifying module, a voltage-stabilizing module, a resistor R and a capacitor C; the main contact of the contactor is connected between the diesel generating set and the power utilization end of the load in series, and the coil of the contactor is connected with the output end of the voltage-stabilizing delay device; the input end of the voltage-stabilizing time delay device is connected with the main contact of the contactor; the AC/DC rectifying module, the voltage stabilizing module, the resistor R and the capacitor C are all connected in parallel.
Further, the voltage-stabilizing delay device comprises a button, wherein the button is connected between the live wire input end of the voltage-stabilizing delay device and the main contact of the contactor in series.
Further, the output of the diesel generator set is 230V alternating current.
Further, the contactor is an alternating current and direct current universal contactor.
Further, the resistance value of the resistor is 150k omega.
Further, the capacitance value of the capacitor is 200 muF.
The beneficial effects of the utility model reside in that: when the output voltage of the diesel generating set suddenly drops, the voltage-stabilizing delay device provides a short-time power supply for an output switch of the diesel generating set, and after a period of time delay, the output switch of the diesel generating set trips, namely the output switch of the diesel generating set trips in a delayed manner; if the output voltage of the diesel generating set is recovered within the delay time, the output switch of the diesel generating set cannot trip, and normal power utilization of the load is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic diagram of a common diesel generator set.
Fig. 2 is a schematic diagram of an embodiment of the present invention.
The reference signs explain: UP01 voltage-stabilizing delay device, KM-MT. contactor coil, KM-OF. contactor main contact, SB01 button, R resistor and C capacitor.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and the present invention is not limited to the specific embodiments disclosed below.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and claims of this patent application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
As shown in fig. 2, the device for delayed power-off tripping of the output switch working power supply of the diesel generator set comprises the diesel generator set, a load power utilization end, a contactor and a voltage-stabilizing delay device UP 01; the voltage-stabilizing time delay device UP01 comprises an AC/DC rectifying module, a voltage-stabilizing module, a resistor R and a capacitor C; the contactor main contact KM-OF is connected between a diesel generator set and a load power utilization end in series, and the contactor coil KM-MT is connected with the output end OF a voltage-stabilizing delay device UP 01; the input end OF the voltage-stabilizing delay device UP01 is connected with a main contact KM-OF OF the contactor; the AC/DC rectifying module, the voltage stabilizing module, the resistor R and the capacitor C are all connected in parallel.
The embodiment OF the utility model provides an in, still include button SB01, button SB01 establishes ties between steady voltage delay unit UP01 live wire input and contactor main contact KM-OF. The output of the diesel generator set is 230V alternating current; the contactor is an alternating current and direct current universal contactor; the resistance value of the resistor R is 150k omega; the capacitance C is 200 muF. When the diesel generating set normally works, AC230V alternating voltage is output, a button SB01 is pressed, a contact OF a button SB01 is closed, AC230V alternating voltage is arranged at the input end OF the voltage-stabilizing delay device UP01, the alternating voltage is rectified by the AC/DC rectification module and then a voltage-stabilizing value is output by the voltage-stabilizing module, when the voltage-stabilizing value reaches the action voltage OF a contactor coil KM-MT, the contactor coil KM-MT is electrified to act, a main contact KM-OF OF the contactor is closed, the diesel generating set outputs voltage, a load power utilization end is connected to an AC230V alternating current power supply, and equipment at the load power utilization end can work. Meanwhile, a resistor R module and a capacitor C module in the voltage-stabilizing delay device UP01 form an RC charging circuit to store electric energy, and finally, the voltage at two ends of the RC module is equal to the voltage-stabilizing value of the voltage-stabilizing module.
When the load power consumption end equipment works, the output voltage of the diesel generating set suddenly drops due to sudden load change, the voltage drops to an AC/DC rectification module of the voltage-stabilizing delay device UP01, the voltage value is lower than the voltage-stabilizing value of the voltage-stabilizing module, a resistor R module and a capacitor C module in the voltage-stabilizing delay device UP01 form an RC discharge circuit, and the voltage at two ends of the RC module slowly decreases in the discharge process. As long as the voltage at the two ends OF the RC module is not lower than the maintaining voltage OF the contactor coil KM-MT in the discharging process, the contactor coil KM-MT can maintain the power-on action, the main contact KM-OF OF the contactor is maintained to be closed, and the power-using end OF the load is maintained to be powered on to work. When the voltage at the two ends OF the RC module is lower than the maintaining voltage OF the contactor coil KM-MT, the contactor coil KM-MT loses power, the main contact KM-OF OF the contactor is disconnected, no voltage is output from the power utilization end OF the load, and the power utilization end OF the load is disconnected, namely, the time delay OF several seconds is realized when the output voltage OF the generator suddenly drops to the power failure OF the power utilization end OF the load. If the output voltage of the diesel generating set is recovered within the delay time, the output switch of the diesel generating set cannot trip, and normal power utilization of the load is guaranteed.
As shown in fig. 1, in a common diesel generator set, there is no voltage-stabilizing delay device UP01, when a load power consumption end device works, the output voltage OF a generator suddenly drops due to sudden load change, and when the voltage is lower than the maintaining voltage OF a contactor coil KM-MT, the contactor coil KM-MT is immediately powered off, a main contact KM-OF the contactor is disconnected, the load power consumption end has no voltage output, and the load power consumption end is powered off. Namely, the voltage OF the generator suddenly drops, the contactor KM-OF is immediately switched off, and the power consumption end OF the load is immediately powered off, so that the normal power consumption OF the load is influenced.
Through the input voltage of operating button SB01 disconnection steady voltage delay unit UP01, simulate diesel generating set output voltage drop promptly and be 0, record the utility model discloses the RC module that resistance R and electric capacity C constitute can realize 4 s' delay time. In the actual use process, the phenomenon of sudden drop of the output voltage can occur instantly when the load uses electricity, but the output voltage cannot drop to 0, and the output voltage of the diesel generating set is recovered to be normal after about 3 seconds. Namely the utility model discloses steady voltage delay unit UP01 can maintain contactor coil KM-MT during output voltage suddenly falls and get electric, keeps contactor main contact KM-OF closed, prevents the phenomenon OF diesel generating set output switch mistake tripping operation, ensures the normal power consumption OF load.
When the output voltage of the diesel generating set suddenly drops, the voltage-stabilizing time delay device UP01 provides a short-time power supply for the output switch of the diesel generating set, and after a period of time delay, the output switch of the diesel generating set trips, namely the output switch of the diesel generating set trips in a time delay manner; if the output voltage of the diesel generating set is recovered within the delay time, the output switch of the diesel generating set cannot trip, and normal power utilization of the load is guaranteed.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A device for delayed power-off tripping of an output switch working power supply of a diesel generating set is characterized by comprising the diesel generating set, a load power utilization end, a contactor and a voltage-stabilizing delay device; the voltage-stabilizing delay device comprises an AC/DC rectifying module, a voltage-stabilizing module, a resistor R and a capacitor C; the main contact of the contactor is connected between the diesel generating set and the power utilization end of the load in series, and the coil of the contactor is connected with the output end of the voltage-stabilizing delay device; the input end of the voltage-stabilizing time delay device is connected with the main contact of the contactor; the AC/DC rectifying module, the voltage stabilizing module, the resistor R and the capacitor C are all connected in parallel.
2. The device for delayed power-off tripping of an operating power supply of an output switch of a diesel generator set according to claim 1, further comprising a button, wherein the button is connected in series between the live input end of the voltage-stabilizing delay device and the main contact of the contactor.
3. The device for delayed power-loss tripping of the output switch working power supply of the diesel generating set according to claim 1, characterized in that the output of the diesel generating set is 230V alternating current.
4. The device for delayed power-off tripping of an output switch working power supply of a diesel generating set according to claim 1, characterized in that the contactor is an alternating current and direct current universal contactor.
5. The device for delayed power-off tripping of an output switch working power supply of a diesel generating set according to claim 1, characterized in that the resistance value of the resistor is 150 kq.
6. The device for delayed power-loss tripping of the output switch working power supply of the diesel generating set according to claim 1, characterized in that the capacitance value of the capacitor is 200 μ F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120080202.7U CN214337539U (en) | 2021-01-13 | 2021-01-13 | Delay power-off tripping device for output switch working power supply of diesel generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120080202.7U CN214337539U (en) | 2021-01-13 | 2021-01-13 | Delay power-off tripping device for output switch working power supply of diesel generating set |
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| Publication Number | Publication Date |
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| CN214337539U true CN214337539U (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120080202.7U Active CN214337539U (en) | 2021-01-13 | 2021-01-13 | Delay power-off tripping device for output switch working power supply of diesel generating set |
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| CN (1) | CN214337539U (en) |
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2021
- 2021-01-13 CN CN202120080202.7U patent/CN214337539U/en active Active
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