CN220064305U - Device for controlling on-off of quick breaker in pattern test - Google Patents
Device for controlling on-off of quick breaker in pattern test Download PDFInfo
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- CN220064305U CN220064305U CN202321710704.9U CN202321710704U CN220064305U CN 220064305 U CN220064305 U CN 220064305U CN 202321710704 U CN202321710704 U CN 202321710704U CN 220064305 U CN220064305 U CN 220064305U
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Abstract
The utility model discloses a device for controlling the switching-on and switching-off of a quick breaker in a pattern test, which comprises a power supply unit, a sample control unit, a time sequence control unit, a normally open reed switch switching-on and switching-off relay unit and a data signal acquisition unit, wherein the power supply unit is connected with the sample control unit; the input end of the test product control unit is connected with the power supply unit and the time sequence control unit, the output end of the test product control unit is connected with the normally open type reed switch-on/off relay unit, the output end of the normally open type reed switch-on/off relay unit is respectively connected with the breaker switch-on coil and the breaker switch-off coil, and the output ends of the breaker switch-on coil and the breaker switch-off coil are connected with the data signal acquisition unit. The utility model effectively solves the time delay problem between the switching-on and switching-off trigger time of the quick breaker and the switching-on and switching-off completion in the type test, and simultaneously can accurately measure the real switching-on and switching-off inherent time of the quick breaker through the data signal acquisition unit, thereby further improving the detection accuracy of equipment.
Description
Technical Field
The utility model relates to the technical field of simulation test devices of electrical equipment, in particular to a device for controlling the switching-on and switching-off of a quick breaker in a pattern test.
Background
The switching-on and switching-off time of the quick circuit breaker is an important reference index for evaluating the performance of the quick circuit breaker, and is also a key factor influencing the arc extinguishing capability and the action reliability of the quick circuit breaker. The quick circuit breaker is often required to control the closing and opening currents of the quick circuit breaker in the type test process, and a mode that a test control cabinet is matched with a common electromagnetic relay to operate is adopted in the type test at present, and the mode is mature. However, with the technical development of the quick circuit breaker, the switching-on and switching-off action time of some quick circuit breakers can be within 10ms, and because the intrinsic action time of a common electromagnetic relay is 10-20ms, the measured switching-on and switching-off time of equipment is far longer than the action time stated by manufacturers, and the technical requirements cannot be met by the existing mode in a large-capacity type test.
Therefore, in order to solve the time delay problem between the trigger time of the quick breaker switching-on and switching-off and the switching-on and switching-off completion in the pattern test, further satisfying the switching-on and switching-off action time declared by the equipment manufacturer, it is necessary to use a new control device to solve the above-mentioned problem.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a device for controlling the switching-on and switching-off of a quick breaker in a pattern test, which is used for shortening the time between the switching-on and switching-off triggering time of the quick breaker and the switching-on and switching-off completion time of the quick breaker in the pattern test and accurately measuring the real switching-on and switching-off inherent time of the quick breaker.
In order to achieve the above purpose, the present utility model is realized by the following technical scheme:
a device for controlling the on-off of a quick breaker in a pattern test comprises a power supply unit, a sample control unit, a time sequence control unit, a normally open reed switch on-off relay unit and a data signal acquisition unit; the input end of the test product control unit is connected with the power supply unit and the time sequence control unit, the output end of the test product control unit is connected with the normally open type reed switch-on/off relay unit, the output end of the normally open type reed switch-on/off relay unit is respectively connected with the breaker switch-on coil and the breaker switch-off coil, and the output ends of the breaker switch-on coil and the breaker switch-off coil are connected with the data signal acquisition unit.
Further, the input of the power supply unit is 380V alternating current, and the output of the power supply unit is 0-300V adjustable direct current.
Further, the sample control unit consists of a remote control loop, a photoelectric coupling loop and a solid-state relay output loop; the input end of the remote control loop is connected with the output end of the time sequence control unit, the output end of the remote control loop is connected with the input end of the photoelectric coupling loop, and the output end of the photoelectric coupling loop is connected with the input end of the solid state relay output loop.
Further, the normally open type reed switch-on/off relay unit is composed of two high-voltage-resistant reed switches, an input end and an output end of a switch-on signal, and an input end and an output end of a switch-off signal, wherein the input ends of the switch-on signal and the switch-off signal are respectively connected with control coils of the two high-voltage-resistant reed switches, the switch-on signal input end is connected with a switch-on voltage output end of a solid-state relay output loop of the test article control unit and is used for receiving switch-on pulse instructions, the switch-on signal output end is connected with a switch-on coil of a circuit breaker, and the switch-off signal input end is connected with a switch-off voltage output end of a solid-state relay output loop of the test article control unit and is used for receiving switch-off pulse instructions, and the switch-off signal output end is connected with the switch-on coil of the circuit breaker.
Further, the time sequence control unit consists of a time sequence generator and a power amplifier, wherein the input end of the time sequence generator is connected with an input control board of the time sequence generator through a wire, the output end of the time sequence generator is connected with the input end of the power amplifier through an optical fiber, the output end of the power amplifier is connected to a remote control loop of the sample control unit through a wire, and a switching-on and switching-off pulse time and pulse output duration are set through the input control board of the time sequence generator to send a switching-on and switching-off instruction to the sample control unit.
Furthermore, the input end and the output end of a closing signal of the normally open type reed switch-on and switch-off relay unit are connected with the input end and the output end of a switching-off signal by adopting a push type quick connecting terminal.
Furthermore, the normally open reed switch on/off relay unit is welded and installed on the PCB.
Further, the data signal acquisition unit comprises a position signal acquisition module and a data recording module, wherein the position signal acquisition module is used for acquiring the positions of switching on and switching off of the quick breaker, and the data recording module is used for recording the output time length of the switching-on pulse and the switching-off pulse.
Compared with the prior art, the utility model has the following beneficial technical effects:
a device for controlling the on-off of a quick breaker in a pattern test comprises a power supply unit, a sample control unit, a time sequence control unit, a normally open reed switch on-off relay unit and a data signal acquisition unit; the device is characterized in that the input end of the sample control unit is connected with the power supply unit and the time sequence control unit, the output end of the sample control unit is connected with the normally open type reed switch-on and switch-off relay unit, the output end of the normally open type reed switch-on and switch-off relay unit is respectively connected with the breaker switch-off coil and the breaker switch-on coil, and the output ends of the breaker switch-on coil and the breaker switch-on coil are connected with the data signal acquisition unit.
Further, the power supply unit is 380V in input alternating current and 0-300V in output, and can meet the requirements of different control voltages.
Further, the time sequence control unit consists of a time sequence generator and a power amplifier, wherein the input end of the time sequence generator is connected with an input control board of the time sequence generator through a wire, the output end of the time sequence generator is connected with the input end of the power amplifier through an optical fiber, and the output end of the power amplifier is connected with a remote control loop of the sample control unit through a wire. And setting the on-off pulse time and the pulse output time length through a control board of the time sequence generator, and sending an on-off instruction to the test article control unit.
Further, the input end and the output end of a closing signal of the normally open type reed switch-on and switch-off relay unit and the input end and the output end of a switch-off signal are connected through a push type quick connecting terminal, so that circuit connection is facilitated, and the switch-on and switch-off relay unit is easy to replace after being damaged.
Further, the data signal acquisition unit comprises a position signal acquisition module and a data recording module, wherein the position signal acquisition module is used for acquiring the positions of closing and opening of the quick circuit breaker, and the data recording module is used for recording the output time length of closing pulse and opening pulse, so that the real inherent time of closing and opening of the quick circuit breaker can be accurately measured.
Drawings
Fig. 1 is a schematic diagram of the system structure of the device for controlling the opening and closing of the quick breaker in the pattern test.
Fig. 2 is a schematic diagram of a normally open reed switch on/off relay unit according to the present utility model.
Fig. 3 is a waveform of the time taken for opening and closing the quick circuit breaker measured by the apparatus for controlling opening and closing the quick circuit breaker in the pattern test according to the present utility model.
Wherein, the serial number 1 is the power supply unit, the serial number 2 is the test article control unit, the serial number 3 is the time sequence control unit, the serial number 4 is the normally open type reed switch on/off relay unit, the serial number 5 is the data signal acquisition unit.
Detailed Description
The utility model is described in further detail below with reference to the attached drawing figures:
as shown in fig. 1, the device for controlling the on-off of the quick breaker in the pattern test comprises a power supply unit 1, a sample control unit 2, a time sequence control unit 3, a normally open reed switch on-off relay unit 4 and a data signal acquisition unit 5; the input end of the sample control unit 2 is connected with the power supply unit 1 and the time sequence control unit 3, the output end of the sample control unit 2 is connected with the normally open type reed switch-on and switch-off relay unit 4, the output end of the normally open type reed switch-on and switch-off relay unit 4 is respectively connected with the breaker switch-on coil and the breaker switch-off coil, and the output ends of the breaker switch-on coil and the breaker switch-off coil are connected with the data signal acquisition unit 5.
Specifically, the input of the power supply unit 1 is 380V ac, and the output is 0-300V adjustable dc.
More preferably, the sample control unit 2 consists of a remote control loop, a photoelectric coupling loop and a solid-state relay output loop; the input end of the remote control loop is connected with the output end of the time sequence control unit 3, the output end of the remote control loop is connected with the input end of the photoelectric coupling loop, and the output end of the photoelectric coupling loop is connected with the input end of the solid state relay output loop.
Specifically, the normally open type reed switch-on/off relay unit 4 is composed of two high-voltage-resistant reed switch-on relays, an input end and an output end of a switch-on signal, and an input end and an output end of a switch-off signal, wherein the input ends of the switch-on signal and the switch-off signal are respectively connected with control coils of the two high-voltage-resistant reed switch-on relays, the switch-on signal input end is connected with a switch-on voltage output end of a solid-state relay output loop of the test article control unit 2 and is used for receiving switch-on pulse instructions, the switch-on signal output end is connected with a switch-on coil of a circuit breaker, and the switch-off signal input end is connected with a switch-off voltage output end of a solid-state relay output loop of the test article control unit 2 and is used for receiving switch-off pulse instructions, and the switch-off signal output end is connected with the switch-off coil of the circuit breaker.
Specifically, the timing control unit 3 is composed of a timing generator and a power amplifier, the input end of the timing generator is connected with an input control board of the timing generator through a wire, the output end of the timing generator is connected with the input end of the power amplifier through an optical fiber, the output end of the power amplifier is connected to a remote control loop of the sample control unit 2 through a wire, and a switching-on and switching-off pulse time and pulse output duration are set through the input control board of the timing generator to send a switching-on and switching-off instruction to the sample control unit 2.
More preferably, the input end and the output end of a closing signal of the normally open type reed switch-on/off relay unit 4 are connected with the input end and the output end of a switching-off signal by adopting a push type quick connecting terminal.
Specifically, the normally open type reed switch on/off relay unit is welded and installed on the PCB.
Specifically, the data signal acquisition unit comprises a position signal acquisition module and a data recording module, wherein the position signal acquisition module is used for acquiring the positions of closing and opening of the quick breaker, and the data recording module is used for recording the output time length of closing pulse and opening pulse.
As shown in fig. 2, the normally open reed switch on/off relay unit 4 is composed of two high voltage-resistant reed switches, a switch on signal input end and output end, and a switch off signal input end and output end, and is mounted on a PCB board by welding. The input end and the output end of a closing signal of the normally open reed switch-on and switch-off relay unit 4 and the input end and the output end of a switch-off signal are connected by adopting a push type quick connecting terminal, so that the circuit connection is convenient, and the switch-on and switch-off relay unit is easy to replace after being damaged. The input ends of the switching-on signal and the switching-off signal are respectively connected with the control coils of the two high-voltage-resistant reed switch, the input ends of the switching-on signal are connected with the switching-on voltage output ends of the solid-state relay output circuits of the test product control unit 2 and are used for receiving switching-on pulse instructions, the switching-on signal output ends are connected with the switching-off voltage output ends of the solid-state relay output circuits of the test product control unit 2 and are used for receiving switching-off pulse instructions, and the switching-off signal output ends are connected with the switching-off coils of the circuit breaker.
The data signal acquisition unit 5 comprises a position signal acquisition module and a data recording module. The position signal acquisition module is used for acquiring the positions of closing and opening of the quick breaker. The data recording module is used for recording the output time length of the closing pulse and the opening pulse, comparing the output time length with the closing and opening time of the quick circuit breaker, and measuring the closest inherent closing and opening time of the quick circuit breaker.
The working mode is as follows: the embodiment takes 24V direct-current voltage and quick breaker switching-on and switching-off operation as examples:
1. the power supply unit 1 is regulated to output 24V direct current voltage which is connected to the sample control unit 2;
2. setting a switching-on control pulse triggering time by a time sequence control unit 3, switching-off the control pulse triggering time, wherein the pulse duration is 30ms, and sending a switching-on and switching-off instruction to a sample control unit 2;
3. the sample control unit 2 receives the instruction and outputs voltage to the on-off signal input end of the normally open reed switch on-off relay unit 4 through the photoelectric coupling loop and the solid relay;
4. the control coil connected with the input end of the normally open reed switch-on/off relay unit 4 generates a magnetic field after being electrified, the reed of the reed can attract and conduct the switch-on/off loop of the breaker and the quick breaker realizes switch-on/off, as shown in fig. 3, the measured switch-on time is 8.8ms and the switch-off time is 1.8ms through the data signal acquisition unit.
Claims (8)
1. The device for controlling the on-off of the quick breaker in the pattern test is characterized by comprising a power supply unit (1), a sample control unit (2), a time sequence control unit (3), a normally open reed switch on-off relay unit (4) and a data signal acquisition unit (5);
the input end of the sample control unit (2) is connected with the power supply unit (1) and the time sequence control unit (3), the output end of the sample control unit (2) is connected with the normally open type reed switch-on/off relay unit (4), the output end of the normally open type reed switch-on/off relay unit (4) is respectively connected with the breaker switch-on coil and the breaker switch-on coil, and the output ends of the breaker switch-on coil and the breaker switch-on coil are both connected with the data signal acquisition unit (5).
2. Device for controlling the opening and closing of a quick breaker in a pattern test according to claim 1, characterized in that the input of the power supply unit (1) is 380V ac, outputting 0-300V adjustable dc.
3. The device for controlling the opening and closing of a quick breaker in a pattern test according to claim 1, characterized in that the test article control unit (2) consists of a remote control loop, a photoelectric coupling loop and a solid state relay output loop;
the input end of the remote control loop is connected with the output end of the time sequence control unit (3), the output end of the remote control loop is connected with the input end of the photoelectric coupling loop, and the output end of the photoelectric coupling loop is connected with the input end of the solid state relay output loop.
4. The device for controlling the switching-on and switching-off of the quick breaker in the pattern test according to claim 3, wherein the normally open type reed switch-on and switching-off relay unit (4) consists of two high-voltage-resistant reed switches, a switching-on signal input end, a switching-off signal output end and a switching-off signal input end, wherein the switching-on signal input end and the switching-off signal input end are respectively connected with control coils of the two high-voltage-resistant reed switches, the switching-on signal input end is connected with a switching-on voltage output end of a solid-state relay output loop of the test article control unit (2) and is used for receiving switching-on pulse instructions, the switching-on signal output end is connected with a switching-off voltage output end of a solid-state relay output loop of the test article control unit (2) and is used for receiving switching-off pulse instructions, and the switching-off signal output end is connected with the switching-off coil of the breaker.
5. The device for controlling the switching-on and switching-off of the quick breaker in the pattern test according to claim 3, wherein the time sequence control unit (3) is composed of a time sequence generator and a power amplifier, the input end of the time sequence generator is connected with the input control board of the time sequence generator through a wire, the output end of the time sequence generator is connected with the input end of the power amplifier through an optical fiber, the output end of the power amplifier is connected to a remote control loop of the test article control unit (2) through a wire, and a switching-on and switching-off pulse time and a pulse output duration are set through the input control board of the time sequence generator to send a switching-on and switching-off instruction to the test article control unit (2).
6. The device for controlling the switching-on and switching-off of the quick breaker in the pattern test according to claim 1, wherein the input end and the output end of a switching-on signal of the normally open type reed switch-on and switching-off relay unit (4) are connected with the input end and the output end of a switching-off signal by adopting a push type quick connecting terminal.
7. The device for controlling the switching on and off of the quick breaker in the pattern test according to claim 1, wherein the normally open type reed switch on and off relay unit (4) is welded on the PCB board.
8. The device for controlling the closing and opening of the quick circuit breaker in the pattern test according to claim 1, wherein the data signal acquisition unit (5) comprises a position signal acquisition module and a data recording module, the position signal acquisition module is used for acquiring the closing and opening positions of the quick circuit breaker, and the data recording module is used for recording the output time length of the closing pulse and the opening pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321710704.9U CN220064305U (en) | 2023-06-30 | 2023-06-30 | Device for controlling on-off of quick breaker in pattern test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321710704.9U CN220064305U (en) | 2023-06-30 | 2023-06-30 | Device for controlling on-off of quick breaker in pattern test |
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| Publication Number | Publication Date |
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| CN220064305U true CN220064305U (en) | 2023-11-21 |
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| CN202321710704.9U Active CN220064305U (en) | 2023-06-30 | 2023-06-30 | Device for controlling on-off of quick breaker in pattern test |
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| CN (1) | CN220064305U (en) |
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- 2023-06-30 CN CN202321710704.9U patent/CN220064305U/en active Active
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