CN213069094U - Response time and three-phase synchronization difference testing system - Google Patents
Response time and three-phase synchronization difference testing system Download PDFInfo
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- CN213069094U CN213069094U CN202021099420.7U CN202021099420U CN213069094U CN 213069094 U CN213069094 U CN 213069094U CN 202021099420 U CN202021099420 U CN 202021099420U CN 213069094 U CN213069094 U CN 213069094U
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Abstract
The utility model provides a response time and three-phase synchronization difference testing system, which comprises a power module, a load and a multi-channel recording device; the input end of the power supply module is connected with a power grid, the output end of the power supply module is connected with a three-phase main contact and an auxiliary contact of a device to be tested, and the other end of the device to be tested is correspondingly connected with a load; and the loads are connected in parallel, and two ends of each load are connected with the multichannel recording equipment. A response time and three-phase difference test system in same period, can look over its actuation and off-time to contactor and circuit breaker test to whether can satisfy the requirement to can all main contacts of simultaneous measurement and auxiliary contact normally open the normal close point operating time difference.
Description
Technical Field
The utility model belongs to the test field especially relates to a response time and three-phase synchronization difference test system.
Background
With the rapid development of the wind power industry, the full-power converter, the master control system and the pitch control system are gradually improved, and compared with the originally developed wind power equipment, the full-power converter, the master control system and the pitch control system are greatly improved in all aspects, and are obvious in stability and reliability. With the continuous improvement of power grade, the specifications of electromagnetic elements, external distribution alternating current contactors and miniature circuit breakers are more and more, and in the using process, whether the pull-in response time of various devices meets the specification requirement or whether the on-off set value is in a reliable range is determined.
Disclosure of Invention
In order to solve the problems that the response time of a contactor and a breaker can be accurately measured in the test process, and in a three-phase system, three-phase suction difference caused by the contact process problem is solved, a test system for the response time and the three-phase synchronization difference is provided.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a response time and three-phase synchronization difference testing system comprises a power module, a load and a multi-channel recording device;
the input end of the power supply module is connected with a power grid, the output end of the power supply module is connected with a three-phase main contact and an auxiliary contact of a device to be tested, and the other end of the device to be tested is correspondingly connected with a load; the loads are connected in parallel, and two ends of each load are connected with the multi-channel recording equipment;
the multichannel recording equipment is used for measuring and obtaining voltage waveforms and instantaneous data, and is used for calculating the voltage waveforms and the instantaneous data to obtain the response time of the device to be tested.
Further, the power module adopts a 24V switching power supply.
Furthermore, the response time and three-phase synchronization difference testing system also comprises a starting switch; the starting switch is arranged between the power supply module and the sampling resistor.
Furthermore, the multichannel recording equipment adopts a multichannel oscilloscope.
Further, the multi-channel oscilloscope is of a model of Tak Mso 58.
Furthermore, the load is a sampling resistor, and the resistance value of the sampling resistor is 10-1000 omega.
Furthermore, the response time and three-phase synchronization difference testing system also comprises a base; a load cabinet for placing a load and a power supply module is arranged at one corner of the top of the base, the position close to the load cabinet is used for placing the multi-channel recording equipment, and a track for placing a device to be tested is arranged on one side far away from the load cabinet and the multi-channel recording equipment;
a wire groove is formed in one side of the base, and a threading hole penetrating through the wire groove is formed in the bottom of the load cabinet; a plurality of wire pipes penetrating through the wire grooves are arranged on one side of the base close to the multichannel recording equipment and one side of the base close to the track;
the inner wall of the load cabinet close to the track is provided with a wire harness pipe used for connecting a device to be tested, and the inner wall far away from the multichannel recording equipment is provided with a power supply wire pipe.
Compared with the prior art, the utility model discloses following advantage has:
the system can test the contactor and the circuit breaker, check the pull-in time and the break-off time of the contactor and the circuit breaker, determine whether the pull-in time and the break-off time meet the requirements, and measure the action time difference of all the main contacts and the auxiliary contacts at the normally-open and normally-closed points simultaneously.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a circuit diagram of a test system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a testing system according to an embodiment of the present invention;
fig. 3 is a schematic view of a testing system according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a test system according to an embodiment of the present invention;
fig. 5 is a rear schematic view of a base of a test system according to an embodiment of the present invention.
Description of reference numerals:
1. a base; 2. a load cabinet; 3. a multi-channel recording device; 4. a load; 5. a power supply module; 6. a guide rail; 7. a device under test; 101. a conduit; 102. a wire slot; 201. a harness tube; 202. power supply spool.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being 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", etc. 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, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 and 2, a response time and three-phase synchronization difference test system is composed of a switching power supply, an aluminum shell resistor, a connecting terminal, a device to be tested and a starting switch.
1. Switching power supply: 220 VAC-24 VDC
2. A device under test; electrical devices having on/off operation such as contactors, breakers, and relays.
3. Sampling resistance: 10-1000 omega
4. An oscilloscope: taike Mso58
The switch power supply is connected with a power grid, positive output 24V is connected with a main/auxiliary contact of a tested device, the other end of the tested device is connected with a resistor, the resistor is connected with the negative electrode of the switch power supply to form a loop, and an oscilloscope collects voltage signals at two ends of the resistor.
Therefore, the action process of the tested device is converted into an electric signal which is displayed on the oscilloscope.
One end of a main contact and one end of an auxiliary contact of a tested breaker or contactor are respectively applied with a small power supply (24 v direct current voltage given by a switching power supply), the on-off process of the action is accurately displayed on an oscilloscope (in order to avoid the interference caused by the suspension of one end of the switching power supply, the voltage waveform is accurately collected, and the sampling resistance is increased), when the tested device is switched on and off, the on-off position of the main contact and the auxiliary contact is clearly displayed on the oscilloscope, if the three-phase synchronism difference of the tested device is small, three main contact voltage signals are simultaneously triggered at the moment when the contacts are just contacted, if the three-phase synchronism difference is large, the voltage signals are in sequence, namely, the contacts of the tested device are taken as trigger switches of the voltage signals, and the method is very simple, convenient, intuitive
According to the movement of the tested device, the main auxiliary contact simultaneously moves, and according to the contact stroke of the tested device and the like, the response time and the three-phase synchronization difference can be judged.
And placing the tested device at a testing position, connecting the tested device with a power grid to electrify a switching power supply, displaying voltage signals of a three-phase main contact loop and an auxiliary normally open contact loop of the oscilloscope as 0V at the moment, displaying voltage signals of the auxiliary normally closed contact loop as 24V, closing the tested device, testing, triggering the oscilloscope, transforming all voltage signals, and detecting the response time and three-phase synchronous difference performance of the tested device at the moment.
As shown in fig. 3-5, the response time and three-phase synchronization difference testing system further includes a base 1; a load cabinet 2 for placing a load 4 and a power module 5 is arranged at one corner of the top of the base 1, the position close to the load cabinet 2 is used for placing a multi-channel recording device 3, and a track for placing a device to be tested 7 is arranged on one side far away from the load cabinet 2 and the multi-channel recording device 3;
a trunking 102 is arranged on one side of the base 1, and a threading hole penetrating through the trunking 102 is formed in the bottom of the load cabinet 2; a plurality of line pipes 101 penetrating to the line grooves 102 are arranged on one side of the base 1 close to the multi-channel recording equipment 3 and one side close to the track; the load sets up in the position that is close to the through wires hole, and the load passes through wires hole, wire casing 102 in proper order with multichannel recording equipment's connecting wire and then stretches out from spool 101 to be connected with multichannel recording equipment, and spool 101 is a plurality of, only puts a line in every spool 101, makes the circuit of system clearer, is convenient for connect.
The inner wall of the load cabinet 2 close to the track is provided with a wire harness pipe 201 for connecting the device to be tested 7, and the inner wall far away from the multi-channel recording equipment 3 is provided with a power supply wire pipe 202101. The connecting line of the power module and the device to be tested penetrates out of the wire harness pipe 201 to supply power to the device to be tested.
The load 4, the power module 5, the device to be tested 7 and the connecting wires of the oscilloscope can be placed in the wire tube 101 and the wire groove 102, so that the whole test system is clearer in circuit and avoids confusion.
When the circuit is used, the circuit is connected with the corresponding circuit diagram, so that the circuit is convenient and simple.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A response time and three-phase synchronization difference test system is characterized in that: the device comprises a power supply module, a load and a multi-channel recording device;
the input end of the power supply module is connected with a power grid, the output end of the power supply module is connected with a three-phase main contact and an auxiliary contact of a device to be tested, and the other end of the device to be tested is correspondingly connected with a load; and the loads are connected in parallel, and two ends of each load are connected with the multichannel recording equipment.
2. The response time and three-phase synchronization difference test system according to claim 1, wherein: the power supply module adopts a 24V switching power supply.
3. The response time and three-phase synchronization difference test system according to claim 1, wherein: the response time and three-phase synchronization difference testing system also comprises a starting switch; the starting switch is arranged between the power supply module and the sampling resistor.
4. The response time and three-phase synchronization difference test system according to claim 1, wherein: the multichannel recording equipment adopts a multichannel oscilloscope.
5. The response time and three-phase synchronization difference test system according to claim 4, wherein: the model of the multichannel oscilloscope is Tak Mso 58.
6. The response time and three-phase synchronization difference test system according to claim 1, wherein: the load is a sampling resistor, and the resistance value of the sampling resistor is 10-1000 omega.
7. The response time and three-phase synchronization difference test system according to claim 1, wherein: the response time and three-phase synchronization difference testing system further comprises a base (1); a load cabinet (2) used for placing a load (4) and a power module (5) is arranged at one corner of the top of the base (1), the position close to the load cabinet (2) is used for placing a multi-channel recording device (3), and a track used for placing a device to be tested (7) is arranged on one side far away from the load cabinet (2) and the multi-channel recording device (3);
a wire groove is formed in one side of the base (1), and a threading hole penetrating through the wire groove is formed in the bottom of the load cabinet (2); a plurality of wire pipes penetrating through the wire grooves are arranged on one side, close to the multichannel recording equipment (3), of the base (1) and one side, close to the track, of the base;
the inner wall of the load cabinet (2) close to the track is provided with a wire harness pipe used for connecting a device to be tested (7), and the inner wall far away from the multi-channel recording equipment (3) is provided with a power supply wire pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021099420.7U CN213069094U (en) | 2020-06-15 | 2020-06-15 | Response time and three-phase synchronization difference testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021099420.7U CN213069094U (en) | 2020-06-15 | 2020-06-15 | Response time and three-phase synchronization difference testing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213069094U true CN213069094U (en) | 2021-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021099420.7U Active CN213069094U (en) | 2020-06-15 | 2020-06-15 | Response time and three-phase synchronization difference testing system |
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| Country | Link |
|---|---|
| CN (1) | CN213069094U (en) |
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- 2020-06-15 CN CN202021099420.7U patent/CN213069094U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230713 Address after: No. 100, Hangtian Road, Tianjin Pilot Free Trade Zone (Airport Economic Zone), Binhai, Tianjin 300450 Patentee after: TIANJIN RUIYUAN ELECTRICAL Co.,Ltd. Address before: No.1 Xinghua No.7 Branch Road, economic development zone, Xiqing District, Tianjin Patentee before: Tianjin Ruineng electric Co.,LTD. |
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| TR01 | Transfer of patent right |