Testing tool for thyristor series valve group
By designing a test fixture for thyristor series valve groups and combining the fixture trigger controller with a debugger, the problem of inaccurate fault location in existing technologies has been solved, enabling accurate fault location and convenient judgment, and shortening the test time.
Patent Information
- Application Number
- CN202423137331.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Existing technologies cannot accurately identify the location and cause of faults in thyristor series valve groups, affecting the testing schedule.
A test fixture for thyristor series valve groups was designed, including a working power supply, a main circuit of the test fixture, a control circuit, a debugger, a transformer, a switching power supply, and a fixture trigger controller. By connecting the fixture trigger controller with the debugger, the fault location and cause can be accurately located.
It enables accurate location of faults in thyristor series valve groups, reduces the failure rate, shortens the testing period, and facilitates fault diagnosis.
Smart Images
Figure CN223711761U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to test frock technical field especially relates to a thyristor series valve group test frock. BACKGROUND
[0002] Thyristor series valve group refers to connecting multiple thyristors together to realize higher voltage control, thereby improving circuit stability and reliability, and the thyristor series valve master control board needs to have functions of controlling simultaneous conduction of each thyristor, feeding back voltage sharing state, triggering failure, etc., but at present, in the process of debugging the thyristor series valve, the fault position and reason of the thyristor series valve cannot be accurately identified, and the fault is judged, thereby affecting the test period. SUMMARY
[0003] The utility model solves the technical problem that the utility model provides a thyristor series valve group test frock to solve the problem in the above background art.
[0004] The technical problem solved by the utility model is realized by adopting the following technical scheme:
[0005] A kind of thyristor series valve group test frock, including working power supply, test frock main circuit, test frock control circuit, debugging device, measured valve group, AC220V / AC30V transformer, switching power supply and frock trigger controller, wherein, 2p / 5A switch and 2p / 1A switch are connected on working power supply, voltage passing through 2p / 5A switch enters the AC220V / AC30V transformer of test frock main circuit, and the power supply is reduced to 30V by AC220V / AC30V transformer, to ensure that test personnel operate safely, test frock main circuit is connected with measured valve group, and valve group trigger control fiber interface for being connected with frock trigger controller in test frock control circuit and main circuit test interface for test frock main circuit access are provided on measured valve group;Voltage passing through 2p / 1A switch enters the switching power supply of test frock control circuit, and the power supply is reduced to DC24V by switching power supply, and switching power supply is connected with frock trigger controller, and frock trigger controller is connected with debugging device for accurately identifying fault position and reason.
[0006] In the utility model, trigger control fiber interface for being connected with valve group trigger control fiber interface, state monitoring fiber interface for being connected with debugging device are provided on frock trigger controller.
[0007] In the utility model, trigger control button for issuing pulse trigger command to drive measured valve group is provided on frock trigger controller.
[0008] In the utility model, debugging computer is included in debugging device.
[0009] In the utility model, switch power supply is power supply for tool trigger controller, through trigger control button or debugging computer of tool trigger controller issues pulse trigger command to drive measured valve group, can accurately identify fault position and reason in serial port assistant of debugging computer, conveniently judges fault.
[0010] In the utility model, measured valve group is connected with current limiter, current limiter is composed of 15Ω / 100W resistance and two light emitting diodes, 15Ω / 100W resistance is connected in measured valve group and plays current limiting effect, and through two light emitting diodes, it is convenient to observe positive and negative phase conduction of measured valve group.
[0011] In the utility model, trigger control fiber interface of tool trigger controller is connected with valve group trigger control fiber interface of measured valve group through optical fiber to monitor measured valve group.
[0012] Beneficial effect: the utility model separates test tool main circuit and test tool control circuit and inserts measured valve group, effectively reduces failure rate, then through trigger control button or debugging device of tool trigger controller issues pulse trigger command to drive measured valve group, can accurately identify fault position and reason in serial port assistant of debugging device, conveniently judges fault, effectively shortens test period, after testing, alligator clip of test point set on measured valve group is disassembled, and test tool can be stored, it is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is the connection schematic diagram of preferable embodiment of the utility model. DETAILED DESCRIPTION
[0014] In order to make the technical means, creative characteristics, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific drawings.
[0015] Refer to Figure 1The shown one thyristor series valve group test tool, including work power supply 1, test tool main circuit 2, test tool control circuit 3, debugging computer 4, measured valve group 5, AC220V / AC30V transformer 6, current limiter 7, test point 8, switching power supply 9, tool trigger controller 10, valve group trigger control fiber interface 11, main circuit test interface 12, trigger control button 13, state monitoring fiber interface 14 and trigger control fiber interface 15, wherein, the work power supply 1 is connected with 2p / 5A switch and 2p / 1A switch respectively, the voltage enters the AC220V / AC30V transformer 6 in the test tool main circuit 2 through the 2p / 5A switch, the AC220V / AC30V transformer 6 reduces the power supply to 30V to ensure the safety of the test personnel operation, the test tool main circuit 2 is connected to the test point 8 set on the measured valve group 5 through the alligator clip, that is, the valve group thyristor can be tested whether it is damaged by triggering the corresponding valve group pulse; at the same time, the valve group trigger control fiber interface 11 and the main circuit test interface 12 are set on the measured valve group 5, the valve group trigger control fiber interface 11 is used for connecting with the tool trigger controller 10 in the test tool control circuit 3, the main circuit test interface 13 is used for alligator clip connection; the voltage enters the switching power supply 9 in the test tool control circuit 3 through the 2p / 1A switch, the switching power supply 9 reduces the power supply to DC24V to power the tool trigger controller 10, the tool trigger controller 10 is connected with the valve group trigger control fiber interface 11 of the measured valve group 5 through the trigger control fiber interface 15, connected with the debugging computer 4 through the state monitoring fiber interface 14, the measured valve group 5 is driven by the trigger control button 13 of the tool trigger controller 10 or the pulse trigger command issued by the debugging computer 4, the fault position and reason can be accurately identified in the serial port assistant of the debugging computer 4, and the fault is conveniently judged.
[0016] In the embodiment, the measured valve group 5 is connected in series with the current limiter 7, the current limiter 7 is composed of a 15Ω / 100W resistor and two light emitting diodes, the 15Ω / 100W resistor is connected in series in the measured valve group 5 to play a current limiting role, and the two light emitting diodes are used to conveniently observe the positive and negative phase conduction of the measured valve group 5.
[0017] In the embodiment, the trigger control fiber interface of the tool trigger controller 10 is connected with the valve group trigger control fiber interface 11 of the measured valve group 5 through the optical fiber to monitor the measured valve group 5.
[0018] In the embodiment, before use, the test tool main circuit 2 is connected to the test point 8 arranged on the valve group 5 to be tested through the alligator clip via the main circuit test interface 12, the flow restrictor 7 is connected in series on the valve group 5 to be tested, the trigger control optical fiber interface 15 of the tool trigger controller 10 is connected to the valve group trigger control optical fiber interface 11 of the valve group 5 to be tested through optical fiber, the state monitoring optical fiber interface 14 of the tool trigger controller 10 is connected to the debugging computer 4, then the working power supply 1 is turned on to detect the valve group 5 to be tested, the valve group 5 to be tested is driven by issuing a pulse trigger command through the trigger control button 13 of the tool trigger controller 10 or the debugging computer 4, the fault position and reason can be accurately identified in the serial port assistant of the debugging computer 4, and the fault is conveniently judged; after the test is completed, the alligator clip connected to the test point 8 arranged on the valve group 5 to be tested is disassembled, and the test tool can be stored.
[0019] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A test fixture for a thyristor series valve group, comprising a power supply, a main circuit of the test fixture, a control circuit of the test fixture, a debugger, a valve group under test, an AC220V / AC30V transformer, a switching power supply, and a trigger controller for the fixture, characterized in that, The working power supply is connected to a 2p / 5A switch and a 2p / 1A switch. The voltage through the 2p / 5A switch enters the AC220V / AC30V transformer in the main circuit of the test fixture. The main circuit of the test fixture is connected to the valve group under test. The valve group under test is provided with a valve group trigger control fiber optic interface for connecting to the fixture trigger controller in the control circuit of the test fixture and a main circuit test interface for accessing the main circuit of the test fixture. The voltage from the 2p / 1A switch enters the switching power supply of the test fixture control circuit. The switching power supply is connected to the fixture trigger controller, which is connected to the debugger for accurately identifying the fault location and cause. At the same time, the fixture trigger controller is equipped with a trigger control fiber optic interface for connecting to the valve group trigger control fiber optic interface and a status monitoring fiber optic interface for connecting to the debugger.
2. The thyristor series valve group test fixture according to claim 1, characterized in that, The tooling trigger controller is equipped with a trigger control button for issuing pulse trigger commands to drive the valve group under test.
3. The thyristor series valve group test fixture according to claim 1, characterized in that, Debuggers include debugging computers.
4. The thyristor series valve group test fixture according to claim 1, characterized in that, A flow limiter is connected in series on the valve group under test.
5. The thyristor series valve group test fixture according to claim 4, characterized in that, The current limiter consists of a 15Ω / 100W resistor and two light-emitting diodes.