CN219871676U - Action synchronization characteristic detection device of three-phase contactor - Google Patents
Action synchronization characteristic detection device of three-phase contactor Download PDFInfo
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- CN219871676U CN219871676U CN202321358555.4U CN202321358555U CN219871676U CN 219871676 U CN219871676 U CN 219871676U CN 202321358555 U CN202321358555 U CN 202321358555U CN 219871676 U CN219871676 U CN 219871676U
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- 238000001514 detection method Methods 0.000 title claims abstract description 47
- 230000033001 locomotion Effects 0.000 claims abstract description 27
- 230000001360 synchronised effect Effects 0.000 claims abstract description 7
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- 239000000523 sample Substances 0.000 claims description 14
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Abstract
The utility model relates to a motion synchronous characteristic detection device of a three-phase contactor, which consists of a control power supply, a detection power supply, a signal motion capturing display device and three signal acquisition workpieces, wherein the positive output end and the negative output end of the control power supply are connected with two ends of a contactor coil, the positive electrode of the detection power supply is connected with one end of a main contact A, one end of a main contact B and one end of a main contact C, the negative electrode of the detection power supply is connected with the other ends of the main contact A, the main contact B and the main contact C through the three signal acquisition workpieces, and different signal acquisition ports on the signal motion capturing display device are connected with the three signal acquisition workpieces. The device for detecting the action synchronization characteristics of the three-phase contactor controls the power supply to control the three-phase electric relay to be in and out of the closed state, the oscillograph collects and displays waveforms of the main contacts in the closing and opening processes, whether the actions of the three main contacts are synchronous or not can be further analyzed, the detection precision is higher, and the judgment is more accurate.
Description
Technical Field
The present utility model relates to a detection device, and more particularly, to a device for detecting motion synchronization characteristics of a three-phase contactor.
Background
The three-phase contactor is widely applied to industrial sites such as electric and automation, and for special occasions requiring quick response and high precision, whether the action characteristics of the three-phase main contact are consistent or not influences the normal operation of the whole system. Therefore, it is necessary to evaluate the operation characteristics of the three-phase contactor, that is, whether the synchronization and delay performance of the normally open main contact of the contactor meet the requirements during the actuation or release operation of the detector.
In the current detection device, most of traditional analog or digital ammeter judges the action characteristics of the detection device, and the defects of low acquisition precision, less judgment content, false triggering and the like exist. The device for detecting the action synchronization characteristics of the three-phase contactor is convenient and quick to detect and confirm the action characteristics of the three-phase contactor.
Disclosure of Invention
In order to overcome the defects of the technical problems, the utility model provides a device for detecting the action synchronization characteristics of a three-phase contactor.
According to the device for detecting the action synchronization characteristics of the three-phase contactor, a contactor coil and three normally open main contacts are arranged on the three-phase contactor to be detected, and the three normally open main contacts are a main contact A, a main contact B and a main contact C respectively; the method is characterized in that: the motion synchronous characteristic detection device consists of a control power supply, a detection power supply, a signal motion capture display device and three signal acquisition workpieces, wherein the positive output end and the negative output end of the control power supply are connected to the two ends of a contactor coil, the positive electrode of the detection power supply is connected with one ends of a main contact A, a main contact B and a main contact C, the negative electrode of the detection power supply is connected with the other ends of the main contact A, the main contact B and the main contact C through the three signal acquisition workpieces, and different signal acquisition ports on the signal motion capture display device are connected with the three signal acquisition workpieces.
The utility model relates to a motion synchronization characteristic detection device of a three-phase contactor, wherein the signal motion capture display device is an oscilloscope, three signal acquisition ports are arranged on the oscilloscope, and three signal acquisition workpieces are three oscilloscope probes; one end of each of the three oscilloscope probes is inserted into three signal acquisition ports of the oscilloscope, and two wiring ports at the other end of each of the three oscilloscope probes are respectively connected with the negative electrode of the detection power supply and the three normally open main contacts.
According to the motion synchronous characteristic detection device of the three-phase contactor, one end of the main contact A and one end of the main contact C are connected with one end of the main contact B through short wires, and one end of the main contact B, which is connected with the main contact A and the main contact C, is connected with the positive electrode of a detection power supply.
The beneficial effects of the utility model are as follows: the utility model relates to a motion synchronous characteristic detection device of a three-phase contactor, which is provided with a control power supply, a detection power supply, a signal motion capture display device and three signal acquisition workpieces, wherein the control power supply is used for supplying power to coils of the three-phase contactor, and the detection power supply supplies power to three normally open main contacts of the three-phase contactor through the three signal acquisition workpieces (such as oscilloscope probes); when the intelligent control device is used, the power supply is controlled to be in contact with and released from the three-phase relay, and meanwhile, the signal motion capture display (such as an oscilloscope) is used for collecting waveforms of three main contacts of the contactor in the closing and opening processes, so that whether the motions of the three main contacts are synchronous or not can be analyzed, and compared with the conventional analog or digital ammeter which is used for judging the motion characteristics of the intelligent control device, the intelligent control device is higher in detection precision and more accurate in judgment.
Drawings
Fig. 1 is a schematic circuit diagram of an operation synchronization characteristic detection device for a three-phase contactor according to the present utility model.
In the figure: the control power supply 1, the detection power supply 2, the signal motion capturing display device 3, the contactor coil 4, the normally open main contact 5, the signal acquisition workpiece 6 and the shorting stub 7.
Description of the embodiments
The utility model will be further described with reference to the drawings and examples.
As shown in fig. 1, a schematic circuit diagram of an action synchronization characteristic detection device of a three-phase contactor is provided, wherein the action synchronization characteristic detection device is composed of a control power supply 1, a detection power supply 2, a signal action capturing display device 3 and three signal collecting workpieces 6, a contactor coil 4 and three normally open main contacts 5 are arranged on the three-phase contactor to be detected, and the three normally open main contacts 5 are a main contact a, a main contact B and a main contact C respectively. The positive output end and the negative output end of the control power supply 1 are connected with the two ends of the contactor coil 4 and are used for controlling the power on and off of the contactor coil 4, and when the contactor coil 4 is powered on, three normally open main contacts of the three-phase contactor are closed; when the contactor coil 4 is de-energized, the three normally open main contacts of the three-phase contactor are opened.
The detection power supply 2 is used for supplying power to three normally open main contacts 5 of the three-phase contactor, and when the three normally open main contacts 5 of the contactor are closed, under the power supply action of the detection power supply 2, all currents pass through the three normally open main contacts 5 in the backflow. The signal motion capture display device 3 collects the current waveform flowing through the three normally open main contacts 5 at the moment when the normally open main contacts 5 are closed or opened through the signal collection workpiece 6 so as to analyze the motion synchronization characteristics of the three normally open main contacts 5 in the process of the three-phase contactor actuation and release, and the better the motion synchronization is, the more suitable the three-phase contactor is for the electric automation control occasion requiring the high response speed and high precision.
The positive pole of the detection power supply 2 is connected with one ends of a main contact A, a main contact B and a main contact C, and the negative pole of the detection unit 2 is connected with the other ends of the main contact A, the main contact B and the main contact C through three signal acquisition workpieces 6. Different signal acquisition ports on the signal motion capture display device 3 are connected with three signal acquisition workpieces 6 so as to acquire and display voltage (current) waveforms when the main contact A, the main contact B and the main contact C are closed or opened, and further analyze motion synchronization characteristics of the three normally open main contacts.
In order to realize the connection of the positive electrode of the detection power supply 2, one end of the main contact A is connected with one end of the main contact B through a shorting wire 7, one end of the main contact C is also connected with the main contact B through a connecting wire 7, and then one end of the main contact B connected with the main contact A and the main contact B is connected with the positive electrode of the detection power supply 2.
The signal motion capture display device 3 is an oscilloscope, the three signal acquisition workpieces 6 are three oscilloscope probes, three signal acquisition ports are formed in the oscilloscope, one end of each oscilloscope probe is connected with the signal acquisition port in the oscilloscope, and two wiring ports (usually a crochet hook and a clamp) at the other end of each oscilloscope probe are respectively connected with the negative electrode of the detection power supply 2 and one end of the main contact A, the main contact B or the main contact C. In this way, the three normally open main contacts (main contact A, main contact B and main contact C) of the three-phase contactor are respectively connected with the three oscilloscope probes in series and then are connected to the two ends of the detection power supply 2, namely the detection power supply 2 supplies power to the three normally open main contacts 5 through the three signal acquisition ports of the oscilloscope; at the moment when the main contact A, the main contact B and the main contact C are closed or opened, the current waveforms flowing through the main contact A, the main contact B and the main contact C are displayed on an oscilloscope so as to analyze the action synchronization characteristics of the three-phase contact.
The operation principle of the operation synchronization characteristic detection device of the three-phase contactor of the utility model is as follows:
first, according to fig. 1, a control power supply 1 is connected with a contactor coil 4, a main contact a and a main contact C are short-circuited with a main contact B by a shorting wire 7, the positive electrode of a detection power supply 2 is connected with the main contact B, three oscilloscope probes are inserted on an oscilloscope, then one wiring port at the other end of the three oscilloscope probes is connected with the negative electrode of the detection power supply 2, and the other wiring port at the other end of the three oscilloscope probes is connected with one end of the main contact a, the main contact B and the main contact C.
Then, the power supply of the detection power supply 2 is turned on, and then the power supply of the control power supply 1 is turned on, so that the main contact A, the main contact B and the main contact C are changed from an open state to a closed state along with the turn-on of the control power supply 1, and at the moment of closing, the waveforms of currents flowing through the main contact A, the main contact B and the main contact C are displayed on an oscilloscope, and the action synchronization characteristics of the normally open main contact during the suction of the three-phase contactor can be analyzed according to the displayed waveforms.
Similarly, when the control power supply 1 is disconnected, the main contact a, the main contact B and the main contact C are changed from the closed state to the open state along with the disconnection of the control power supply 1, and at the moment of disconnection, the waveforms of the currents flowing through the main contact a, the main contact B and the main contact C are displayed on the oscilloscope, and the action synchronization characteristics of the normally open main contact when the three-phase contactor is released can be analyzed according to the displayed waveforms.
Claims (3)
1. The device for detecting the action synchronization characteristics of the three-phase contactor is characterized in that a contactor coil (4) and three normally open main contacts (5) are arranged on the three-phase contactor to be detected, and the three normally open main contacts are a main contact A, a main contact B and a main contact C respectively; the method is characterized in that: the motion synchronous characteristic detection device consists of a control power supply (1), a detection power supply (2), a signal motion capturing display device (3) and three signal collecting workpieces (6), wherein the positive output end and the negative output end of the control power supply are connected to the two ends of a contactor coil, the positive electrode of the detection power supply is connected with one end of a main contact A, one end of a main contact B and one end of a main contact C, the negative electrode of the detection power supply is connected with the other ends of the main contact A, the main contact B and the main contact C through the three signal collecting workpieces, and different signal collecting ports on the signal motion capturing display device are connected with the three signal collecting workpieces.
2. The apparatus for detecting motion synchronization characteristics of a three-phase contactor according to claim 1, wherein: the signal motion capture display device (3) is an oscilloscope, three signal acquisition ports are arranged on the oscilloscope, and the three signal acquisition workpieces (6) are three oscilloscope probes; one end of each of the three oscilloscope probes is inserted into three signal acquisition ports of the oscilloscope, and two wiring ports at the other end of each of the three oscilloscope probes are respectively connected with the negative electrode of the detection power supply (2) and the three normally open main contacts (5).
3. The operation synchronization characteristic detection apparatus of a three-phase contactor according to claim 1 or 2, wherein: one end of the main contact A and one end of the main contact C are connected with one end of the main contact B through a shorting wire (7), and one end of the main contact B connected with the main contact A and the main contact C is connected with the positive electrode of the detection power supply (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321358555.4U CN219871676U (en) | 2023-05-31 | 2023-05-31 | Action synchronization characteristic detection device of three-phase contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321358555.4U CN219871676U (en) | 2023-05-31 | 2023-05-31 | Action synchronization characteristic detection device of three-phase contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219871676U true CN219871676U (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321358555.4U Active CN219871676U (en) | 2023-05-31 | 2023-05-31 | Action synchronization characteristic detection device of three-phase contactor |
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| CN (1) | CN219871676U (en) |
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2023
- 2023-05-31 CN CN202321358555.4U patent/CN219871676U/en active Active
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