CN211124624U - Uninterrupted power source system board card fault diagnosis and teaching demonstration platform - Google Patents
Uninterrupted power source system board card fault diagnosis and teaching demonstration platform Download PDFInfo
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- CN211124624U CN211124624U CN201920800981.6U CN201920800981U CN211124624U CN 211124624 U CN211124624 U CN 211124624U CN 201920800981 U CN201920800981 U CN 201920800981U CN 211124624 U CN211124624 U CN 211124624U
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Abstract
The utility model belongs to the technical field of the circuit board detects, concretely relates to uninterrupted power system integrated circuit board fault diagnosis and teaching demonstration platform. The system comprises a mains supply voltage, a bypass voltage, a mains supply input switch, a bypass input switch, a storage battery isolating switch, an output switch, a transformer, a rectifier, an inverter, a mains supply input voltage regulating button, a bypass voltage regulating button, a change-over switch, a signal testing group and a circuit board. The commercial power voltage is connected with the commercial power input switch, the commercial power input voltage regulating button, the transformer, the rectifier, the inverter, the change-over switch, the output switch and the load in sequence. The bypass voltage is connected with the bypass voltage regulating button, the bypass input switch and the change-over switch in sequence. And the mains supply voltage, the bypass voltage, the output voltage of the rectifier and the voltage of the inverter are respectively connected with the circuit board and the signal testing group through signal lines. The utility model discloses can the snap judgments be detected the performance of uninterrupted power system integrated circuit board, improve fault handling capacity.
Description
Technical Field
The utility model belongs to the technical field of the integrated circuit board detects, concretely relates to uninterrupted power system integrated circuit board fault diagnosis and teaching demonstration platform.
Background
In a nuclear power plant, an uninterruptible power supply system can be used as a system power supply for shutdown rods, regulating rods, mechanical absorption rods, main system important valves and the like. When a fault occurs, the power plant lacks necessary means for detecting the circuit board, so that a fault point cannot be accurately positioned, the defects cannot be timely and effectively treated, and the safety of the power plant is influenced. In view of the above, it is necessary to develop a device capable of rapidly and conveniently detecting the performance of the board card.
Disclosure of Invention
The utility model aims at designing an uninterrupted power system integrated circuit board fault diagnosis and teaching demonstration platform, carry out the performance analysis, the fault simulation and the training of handling of uninterrupted power system integrated circuit board.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a board card fault diagnosis and teaching demonstration platform of an uninterruptible power supply system comprises a mains supply voltage, a bypass voltage, an air switch part, a transformer, a rectifier, an inverter, a voltage regulating button group, a change-over switch, a signal testing group and a circuit board. The air switch part comprises a mains supply input switch, a bypass input switch, a storage battery isolating switch and an output switch. The voltage regulating button group comprises a mains supply input voltage regulating button and a bypass voltage regulating button.
The commercial power voltage is connected with the commercial power input switch, the commercial power input voltage regulating button, the transformer, the rectifier, the inverter, the change-over switch, the output switch and the load in sequence. The bypass voltage is connected with the bypass voltage regulating button, the bypass input switch and the change-over switch in sequence. And a storage battery isolating switch and a storage battery are sequentially connected between the rectifier and the inverter. The mains voltage, the bypass voltage, the output voltage of the rectifier and the voltage of the inverter are respectively connected with the circuit board and the signal testing group through signal lines for measurement and monitoring.
The uninterrupted power system board card fault diagnosis and teaching demonstration platform is further provided with a meter display part. The meter display part comprises a mains supply input voltmeter, a voltage regulating output voltmeter, a bypass ammeter, a direct current voltmeter, a direct current ammeter, an output voltmeter and an output ammeter. The mains supply input voltmeter is arranged between the mains supply input switch and the mains supply input voltage regulating button. The voltage regulating output voltmeter is arranged between the commercial power input voltage regulating button and the transformer. The bypass voltmeter is arranged between the bypass voltage and the bypass voltage regulation button. The bypass ammeter is arranged between the bypass voltmeter and the bypass voltage regulating button. The direct current voltmeter is arranged between the rectifier and the storage battery isolating switch. The direct current ammeter is arranged between the direct current voltmeter and the storage battery isolating switch. The output voltmeter is arranged between the inverter and the change-over switch. The output ammeter is arranged between the output voltmeter and the change-over switch.
The mains supply input voltage regulating button is provided with a voltage boosting button and a voltage reducing button for each phase of three-phase power input by mains supply. The commercial power input voltage regulating button comprises an A-phase voltage boosting button, an A-phase voltage reducing button, a B-phase voltage boosting button, a B-phase voltage reducing button, a C-phase voltage boosting button and a C-phase voltage reducing button. The bypass voltage regulator button is provided with a boost and a buck button for the bypass input.
The model of the change-over switch is Q050, and the change-over switch is used for switching from the normal mode to the maintenance mode.
The circuit board comprises a main control board, an interface board, a front panel operation and liquid crystal display panel, an alternating current power supply board, a direct current power supply board, an external interface board, a first relay alarm board and a second relay alarm board. The mains supply voltage, the bypass voltage, the output voltage of the rectifier and the voltage of the inverter are connected with the interface board through signal lines, and data are transmitted to the interface board.
The main control board is respectively connected with the interface board, the front panel operation and liquid crystal display board, the alternating current power supply board, the direct current power supply board, the external interface board, the first relay alarm board and the second relay alarm board. The AC power supply board is respectively connected with the interface board and the external interface board. The direct current power supply board is respectively connected with the front panel operation and liquid crystal display board, the first relay alarm board and the second relay alarm board. The first relay alarm board and the second relay alarm board are respectively and independently connected with the front panel operation and the liquid crystal display panel.
Preferably, the type of the main control board is A070, the type of the interface board is A071, the type of the front panel operation and liquid crystal display panel is A072, the type of the alternating current power supply board is A201, the type of the direct current power supply board is A202, the type of the external interface board is A025, the type of the first relay alarm board is A077, and the type of the second relay alarm board is A078.
The signal test group comprises 4 test points for measuring external power supply connected with the platform, 4 test points for measuring commercial power input voltage which is regulated by the platform voltage regulator and then is conveyed to the working part of the uninterrupted power supply system, 3 test points for measuring voltage value of commercial power which is regulated and enters the rectifier module after passing through the isolation transformer, 12 test points for measuring 6 groups of double-pulse signals by using an oscilloscope, 2 test points for measuring direct current voltage output by the rectifier, 2 test points for testing direct current voltage on a direct current bus formed by an electrolytic capacitor group, 2 test points for measuring PWM (pulse-width modulation) waves output by an inverter module IGBT (insulated gate bipolar transistor) in the uninterrupted power supply system part of the platform by using the oscilloscope, 2 test points for measuring sine waves containing high-frequency harmonic waves after alternating current induction filtering, 2 test points for measuring inverter output voltage after passing through the output isolation transformer and capacitor filtering, 2 test, 2 test points for measuring the voltage of the bypass standby power supply regulated by the voltage regulator, 2 test points for measuring the voltage output by the whole platform, 8 test points for measuring the IGBT driving pulse signal of the inversion module by using an oscilloscope, and positive grounding and negative grounding.
The test points of the signal test group are specified as follows, the test points of a commercial power input A phase, a commercial power input B phase, a commercial power input C phase, a commercial power input N phase, a voltage regulation output A phase, a voltage regulation output B phase, a voltage regulation output C phase, a voltage regulation output N phase, a rectification input A phase, a rectification input B phase, a rectification input C phase, a grounding test point, a pulse 1+ test point, a pulse 1-test point, a pulse 2+ test point, a pulse 2-test point, a pulse 3+ test point, a pulse 3-, a pulse 4+ test point, a pulse 4-test point, a pulse 5+ test point, a pulse 5-test point, a pulse 6+ test point, a pulse 6-test point, a rectification output pulse + test point, a rectification output pulse-test point, a direct current + test point, a direct current-test point, an INV-N test point, an INVC-L test point, an INVC-N test point, a PWM test point, a negative test point, a PWM test point of a.
The utility model discloses the beneficial effect who gains does: the circuit board to be detected replaces the corresponding circuit board on the device, the device is started, instruments such as a universal meter are used for detecting signals such as voltage and waveform of the device, signal points of corresponding functional modules are tested, the performance of the board card is analyzed according to the measuring result, the performance of the detected uninterruptible power supply system board card is rapidly judged, and the fault handling capacity is improved. The voltage regulating button group can simulate the mains supply voltage overrun and bypass voltage overrun faults of the uninterruptible power supply system, detect the corresponding capacity of the device, demonstrate various operation conditions through checking of operation of front panel buttons and alarm information, enable students to drill truly, master the operation and fault treatment method of the device, improve the training and teaching effect and reduce the training cost.
Drawings
FIG. 1 is a schematic perspective view of an uninterruptible power supply system board card fault diagnosis and teaching demonstration platform;
FIG. 2 is a schematic diagram of electrical connection of an uninterruptible power supply system board card fault diagnosis and teaching demonstration platform;
FIG. 3 is a schematic diagram of a circuit board;
FIG. 4 is a schematic diagram of a signal test set;
in the figure: 1 is a mains supply input voltmeter; 2 is a voltage regulation output voltmeter; 3 is a bypass voltmeter; 4 is a bypass ammeter; 5 is a direct current voltmeter; 6 is a direct current ammeter; 7 is an output voltmeter; 8 is an output ammeter; 9 is a front panel operation and liquid crystal display part; 10 is a mains supply input switch; 11 is a bypass input switch; 12 is a storage battery isolating switch; 13 is an output switch; 14 is a mains supply input voltage regulating button; 14A is a bypass pressure regulating button; 15 is a change-over switch; 16 is a signal test group; 17 is a main control board; 18 is an interface board; 19 is a front panel operation and liquid crystal display panel; 20 is an alternating current power supply board; 21 is a DC power supply board; 22 is an external interface board; 23 is a first relay alarm board; 24 is a second relay alarm board; 25-72 are the individual test points of the signal test set.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, the utility model provides a pair of uninterrupted power system integrated circuit board fault diagnosis and teaching demonstration platform's theory of operation is three-phase alternating current commercial power through isolation transformer's regulation, forms DC power supply through the rectifier, and DC power supply forms reliable stable three-phase alternating current through the dc-to-ac converter.
A board card fault diagnosis and teaching demonstration platform of an uninterruptible power supply system comprises a mains supply voltage, a bypass voltage, an air switch part, a transformer, a rectifier, an inverter, a voltage regulating button group, a change-over switch 15, a signal testing group 16 and a circuit board.
The air switch part comprises a mains supply input switch 10, a bypass input switch 11, a storage battery isolating switch 12 and an output switch 13. The commercial power input switch 10 controls the external commercial power to be sent to the commercial power voltage regulator as the commercial power input power of the uninterruptible power supply system. The bypass input switch 11 controls the bypass input power to the bypass voltage regulator for use as a backup power for the ups system. The output switch 13 supplies power for the load and controls the board card fault diagnosis of the whole uninterruptible power supply system and the output connection load of the teaching demonstration platform.
The set of voltage regulation buttons includes a mains input voltage regulation button 14 and a bypass voltage regulation button 14A.
The mains voltage is connected with a mains input switch 10, a mains input voltage regulating button 14, a transformer, a rectifier, an inverter, a change-over switch 15, an output switch 13 and a load in turn. The bypass voltage is connected to the bypass voltage adjusting button 14A, the bypass input switch 11, and the changeover switch 15 in this order. A storage battery isolating switch 12 and a storage battery are connected between the rectifier and the inverter in sequence. The mains voltage, the bypass voltage, the output voltage of the rectifier and the voltage of the inverter are respectively connected with the circuit board and the signal testing group 16 through signal lines for measurement and monitoring.
The uninterrupted power system board card fault diagnosis and teaching demonstration platform is further provided with a meter display part. The meter display part comprises a mains supply input voltmeter 1, a voltage regulating output voltmeter 2, a bypass voltmeter 3, a bypass ammeter 4, a direct current voltmeter 5, a direct current ammeter 6, an output voltmeter 7 and an output ammeter 8. The mains supply input voltmeter 1 is arranged between the mains supply input switch 10 and the mains supply input voltage regulating button 14, and is used for displaying phase voltage values of three-phase mains supply input by the platform. The voltage regulating output voltmeter 2 is arranged between the commercial power input voltage regulating button 14 and the transformer and is used for displaying the three-phase voltage output by the input commercial power after being regulated by the voltage regulator. The bypass voltmeter 3 is provided between the bypass voltage and the bypass regulator button 14A for displaying the single-phase bypass voltage. The bypass ammeter 4 is disposed between the bypass voltmeter 3 and the bypass regulator button 14A, and is used for displaying the load current carried by the bypass power supply. The direct current voltmeter 5 is arranged between the rectifier and the storage battery isolating switch 12 and used for displaying the direct current voltage value output by the uninterruptible power supply system. The DC ammeter 6 is arranged between the DC voltmeter 5 and the storage battery isolating switch 12 and is used for displaying the current value after the DC load. The output voltmeter 7 is arranged between the inverter and the change-over switch 15 and is used for displaying the value of the alternating voltage output by the inverter of the uninterruptible power supply system. The output ammeter 8 is arranged between the output voltmeter 7 and the change-over switch 15 and is used for displaying the value of the loaded alternating current output by the uninterruptible power supply system.
The mains supply input voltage regulating button 14 is provided with a voltage boosting button and a voltage reducing button for each phase of the three-phase power input by the mains supply. The commercial power input voltage regulating button 14 comprises an A-phase voltage boosting button, an A-phase voltage reducing button, a B-phase voltage boosting button, a B-phase voltage reducing button, a C-phase voltage boosting button and a C-phase voltage reducing button. The voltage value of a three-phase working power supply entering a charger part in the platform is adjusted by pressing a voltage increasing button and a voltage reducing button, so that the over-limit fault of the commercial power of the uninterruptible power supply system can be simulated. The bypass voltage regulating button 14A is provided with a voltage boosting button and a voltage reducing button for bypass input, and the voltage value of the standby power supply entering the platform is regulated through the buttons, so that the over-limit fault of the bypass voltage of the uninterrupted power supply system can be simulated.
Wherein the model number of the changeover switch 15 is Q050 for use as an operation of switching from the normal mode to the maintenance mode.
As shown in fig. 3, the circuit board includes a main control board 17, an interface board 18, a front panel operating and liquid crystal display panel 19, an ac power supply board 20, a dc power supply board 21, an external interface board 22, a first relay alarm board 23, and a second relay alarm board 24. The mains voltage, the bypass voltage, the output voltage of the rectifier, and the voltage of the inverter are connected to the interface board 18 via signal lines, and data is transmitted to the interface board 18.
The main control board 17 is respectively connected with an interface board 18, a front panel operation and liquid crystal display board 19, an alternating current power supply board 20, a direct current power supply board 21, an external interface board 22, a first relay alarm board 23 and a second relay alarm board 24. The ac power board 20 is connected to the interface board 18 and the external interface board 22, respectively. The direct current power supply board 21 is respectively connected with the front panel operation and liquid crystal display board 19, the first relay alarm board 23 and the second relay alarm board 24. The first relay alarm board 23 and the second relay alarm board 24 are separately connected with the front panel operation and liquid crystal display board 19.
Preferably, the model of the main control board 17 is a070, the model of the interface board 18 is a071, the model of the front panel operation and liquid crystal display panel 19 is a072, the model of the ac power supply board 20 is a201, the model of the dc power supply board 21 is a202, the model of the external interface board 22 is a025, the model of the first relay alarm board 23 is a077, and the model of the second relay alarm board 24 is a 078.
The alternating current power supply board A20120 and the direct current power supply board 20221 supply power to the circuit boards. The main control board a07017 receives external signals such as the interface board 18 and transmits adjusting, controlling and alarming lamp instructions to each circuit board through a self control program, and the overall control of the device is realized. The interface board a07118 collects signals of voltage, current, temperature, etc. of the uninterruptible power supply system, and receives control signals from the main control board a 07017. The first relay alarm board 23 and the second relay alarm board 24 receive the command of the main control board 17 and drive the alarm signal. The front panel operation and the liquid crystal display panel A07219 display the current and voltage alarm information of the device, and the switching of the device modes can be realized through keys. When the function analysis of the board card is needed, the board card to be detected is installed at a corresponding position, the board card fault diagnosis and teaching demonstration platform of the uninterruptible power supply system is started, a corresponding output signal is measured, and the performance of the board card is evaluated according to the measurement result.
As shown in fig. 4, the signal testing group 16 is used for measuring input and output voltage values of the whole platform, pulse signals of the rectifier, pulse signals controlled by the inverter module, and the like. The signal test group 16 comprises 25-28 test points of an external power supply connected with 4 measurement platforms, 29-32 test points for measuring the commercial power input voltage which is regulated by a platform voltage regulator and then is conveyed to the working part of the uninterrupted power supply system, 33-35 test points for measuring the voltage value of the regulated commercial power which enters the rectifier module after passing through an isolation transformer, 37-48 test points for measuring 6 groups of double-pulse signals by 12 oscilloscopes, 37-48 test points for measuring 6 groups of double-pulse signals by 2 test points 49 and 50 for measuring the direct current voltage output by the rectifier, 51 and 52 test points for testing the direct current voltage on a direct current bus consisting of 2 test electrolytic capacitor groups, 53 and 54 test points for measuring the PWM wave output by an inverter module IGBT in the uninterrupted power supply system part of the 2 measurement platforms by the oscilloscopes, 55 and 55 test points for measuring sine waves containing high-frequency harmonic waves after being filtered by, 56. 2 test points 57 and 58 for measuring the output voltage of the inverter after the output isolation transformer and the capacitor are filtered, 2 test points 59 and 60 for measuring the voltage of the bypass standby power supply after the voltage regulator is adjusted, 2 test points 61 and 62 for measuring the voltage output by the whole platform, and 8 test points 63-70 for measuring the IGBT driving pulse signal of the inversion module by using an oscilloscope, a positive ground 71 and a negative ground 72.
The test point specification of the signal test group is described as follows, the test point 25 of the commercial power input A phase, the test point 26 of the commercial power input B phase, the test point 27 of the commercial power input C phase, the test point 28 of the commercial power input N phase, the test point 29 of the voltage regulation output A phase, the test point 30 of the voltage regulation output B phase, the test point 31 of the voltage regulation output C phase, the test point 32 of the voltage regulation output N phase, the test point 33 of the rectification input A phase, the test point 34 of the rectification input B phase, the test point 35 of the rectification input C phase, the test point 36 of the grounding, the test point 37 of the pulse 1+, the test point 38 of the pulse 1-, the test point 39 of the pulse 2+, the test point 40 of the pulse 2-, the test point 41 of the pulse 3+, the test point 42 of the pulse 3-, the test point 43 of the pulse 4+, the test point 44 of the pulse 4-, the test point 45 of the pulse 5+, the test point 46 of the pulse 6+, the test point 47 of the pulse 6+, the test point 48 of the rectification output pulse 49, the test point of the rectification output pulse 4+, the test point 50 of the rectification output pulse 50, the test point 51 of the direct current +, the test point 52 of the direct current, the test point 52 of the test point of the PWM 5-3625-9, the test point of the PWM 6+ test point of the PWM test point of the PWM 6+ test point of the test.
As shown in fig. 3, the utility model provides a pair of uninterrupted power system integrated circuit board fault diagnosis and teaching demonstration platform mainly carries out the analysis to main control board A070, A071 interface board, A072 front bezel operation and liquid crystal display panel, A201 alternating current power supply board, A202 direct current power supply board, A025 outside interface board, A077 and the performance of A078 relay alarm board.
The utility model provides a pair of uninterrupted power source system integrated circuit board fault diagnosis and teaching demonstration platform mainly do the teaching training to the performance of device. During the use, will treat that the test board card is arranged in the front bezel, draws important input/output signal to the terminal row, measures and monitors, can accurate measurement integrated circuit board performance.
When the device is used, the mains supply input voltage regulating button 14 and the bypass voltage regulating button 14A can be regulated, the mains supply overrun fault of an uninterruptible power supply system can be simulated, and the protection action condition of the device can be monitored.
When the device is used, the terminal voltage of the storage battery can be regulated, the storage battery fault can be simulated, and the automatic switching condition of the device can be monitored.
When the device is used, the mode switching function of the device can be realized through the operation of the front panel and the operation of the liquid crystal display panel A07219.
Claims (9)
1. The utility model provides an uninterrupted power source system integrated circuit board fault diagnosis and teaching demonstration platform which characterized in that: including mains voltage, bypass voltage, air switch part, transformer, rectifier, inverter, pressure regulating button group, change over switch (15), signal test group (16) and circuit board, the air switch part includes mains input switch (10), bypass input switch (11), battery isolator (12) and output switch (13), pressure regulating button group includes mains input pressure regulating button (14) and bypass pressure regulating button (14A), and wherein mains voltage is connected with mains input switch (10), mains input pressure regulating button (14), transformer, rectifier, inverter, change over switch (15), output switch (13) and load in proper order, and bypass voltage is connected with bypass pressure regulating button (14A), bypass input switch (11) and change over switch (15) in proper order, is connected with battery isolator (12) and battery between rectifier and the inverter in proper order, the mains voltage, the bypass voltage, the output voltage of the rectifier and the voltage of the inverter are respectively connected with the circuit board and the signal testing group (16) through signal lines.
2. The uninterruptible power supply system board fault diagnosis and teaching demonstration platform of claim 1, wherein: the uninterrupted power system board card fault diagnosis and teaching demonstration platform is further provided with a meter display part.
3. The uninterruptible power supply system board fault diagnosis and teaching demonstration platform of claim 2, wherein: the meter display part comprises a mains supply input voltmeter (1), a voltage regulation output voltmeter (2), a bypass voltmeter (3), a bypass ammeter (4), a direct current voltmeter (5), a direct current ammeter (6), an output voltmeter (7) and an output ammeter (8), wherein the mains supply input voltmeter (1) is arranged between a mains supply input switch (10) and a mains supply input voltage regulation button (14), the voltage regulation output voltmeter (2) is arranged between the mains supply input voltage regulation button (14) and a transformer, the bypass voltmeter (3) is arranged between a bypass voltage and a bypass voltage regulation button (14A), the bypass ammeter (4) is arranged between the bypass voltmeter (3) and the bypass voltage regulation button (14A), the direct current voltmeter (5) is arranged between a rectifier and a storage battery isolating switch (12), the direct current voltmeter (6) is arranged between the direct current ammeter (5) and the storage battery isolating switch (12), the output voltmeter (7) is arranged between the inverter and the change-over switch (15), and the output ammeter (8) is arranged between the output voltmeter (7) and the change-over switch (15).
4. The uninterruptible power supply system board fault diagnosis and teaching demonstration platform of claim 1, wherein: commercial power input voltage regulating button (14) steps up button, A looks step down button, B looks step up button, B looks step down button, C looks step up button and C looks step down button including A looks, and bypass voltage regulating button (14A) is furnished with one to the bypass input and steps up and step down the button.
5. The uninterruptible power supply system board fault diagnosis and teaching demonstration platform of claim 1, wherein: the circuit board comprises a main control board (17), an interface board (18), a front panel operation and liquid crystal display panel (19), an alternating current power supply board (20), a direct current power supply board (21), an external interface board (22), a first relay alarm board (23) and a second relay alarm board (24), wherein mains supply voltage, bypass voltage, output voltage of a rectifier and voltage of an inverter are connected with the interface board (18) through signal lines, the main control board (17) is respectively connected with the interface board (18), the front panel operation and liquid crystal display panel (19), the alternating current power supply board (20), the direct current power supply board (21), the external interface board (22), the first relay alarm board (23) and the second relay alarm board (24), the alternating current power supply board (20) is respectively connected with the interface board (18) and the external interface board (22), and the direct current power supply board (21) is respectively connected with the front panel operation and liquid crystal display panel (, The first relay alarm board (23) and the second relay alarm board (24) are connected, and the first relay alarm board (23) and the second relay alarm board (24) are respectively and independently connected with the front panel operation and liquid crystal display panel (19).
6. The uninterruptible power supply system board fault diagnosis and teaching demonstration platform of claim 5, wherein: the type of the main control board (17) is A070, the type of the interface board (18) is A071, the type of the front panel operation and liquid crystal display panel (19) is A072, the type of the alternating current power supply board (20) is A201, the type of the direct current power supply board (21) is A202, the type of the external interface board (22) is A025, the type of the first relay alarm board (23) is A077, and the type of the second relay alarm board (24) is A078.
7. The uninterruptible power supply system board fault diagnosis and teaching demonstration platform of claim 1, wherein: the type of the change-over switch (15) is Q050.
8. The uninterruptible power supply system board fault diagnosis and teaching demonstration platform of any one of claims 1 to 7, wherein: the signal test group (16) comprises 4 test points (25-28) of an external power supply connected with a measurement platform, 4 test points (29-32) for measuring the commercial power input voltage which is regulated by a platform voltage regulator and then is conveyed to the working part of the uninterrupted power supply system, 3 test points (33-35) for measuring the voltage value of the regulated commercial power which enters the rectifier module after passing through an isolation transformer, 12 test points (37-48) for measuring 6 groups of double-pulse signals by using an oscilloscope, 2 test points (49, 50) for measuring the direct current voltage output by the rectifier, 2 test points (51, 52) for testing the direct current voltage on a direct current bus formed by an electrolytic capacitor group, 2 test points (53, 54) for measuring the PWM wave output by an inverter module IGBT in the uninterrupted power supply system part of the oscilloscope measurement platform, and 2 test points (55, 55) for measuring the sine wave containing high-frequency harmonic wave after being filtered by using the alternating current, 56) The power supply voltage measuring device comprises 2 test points (57 and 58) for measuring the output voltage of the inverter after the output isolation transformer and the capacitor are filtered, 2 test points (59 and 60) for measuring the voltage of the bypass standby power supply after the voltage regulator is adjusted, 2 test points (61 and 62) for measuring the voltage output by the whole platform, 8 test points (63-70) for measuring the IGBT driving pulse signals of the inversion module, a positive ground (71) and a negative ground (72).
9. The uninterruptible power supply system board fault diagnosis and teaching demonstration platform as claimed in claim 8, wherein the signal test set (16) includes a test point (25) for measuring a mains input A phase, a test point (26) for a mains input B phase, a test point (27) for a mains input C phase, a test point (28) for a mains input N phase, a test point (29) for a voltage regulation output A phase, a test point (30) for a voltage regulation output B phase, a test point (31) for a voltage regulation output C phase, a test point (32) for a voltage regulation output N phase, a test point (33) for a rectification input A phase, a test point (34) for a rectification input B phase, a test point (35) for a rectification input C phase, a test point (36) for grounding, a test point (37) for pulse 1+, a test point (38) for pulse 2+, a test point (39) for pulse 2-, a test point (40) for pulse 3+, a test point (41) for pulse 3-, a test point (42), a test point (43) for pulse 4+, a test point (44) for pulse 4-, a test point (44), a test point (45) for pulse 5-6), a test point (46), a test point (41), a test point (35-55) for a test point (54), a test point (54) for a test point (52-55) for a test point (54), a test point (54) for a test point (52) for a test point for a rectification test point for a rectification test point (55-34) for a rectification test point for a rectification test point for a rectification test point (55), a test point (35), a test point (55-35), a test point (52).
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| CN201920800981.6U CN211124624U (en) | 2019-05-30 | 2019-05-30 | Uninterrupted power source system board card fault diagnosis and teaching demonstration platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114783238A (en) * | 2021-06-07 | 2022-07-22 | 中国人民解放军海军航空大学 | A shortwave radio teaching system capable of fault diagnosis training |
| CN116153171A (en) * | 2023-01-19 | 2023-05-23 | 上海玖道信息科技股份有限公司 | Simulation test method, device, equipment and medium for uninterruptible power supply |
-
2019
- 2019-05-30 CN CN201920800981.6U patent/CN211124624U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114783238A (en) * | 2021-06-07 | 2022-07-22 | 中国人民解放军海军航空大学 | A shortwave radio teaching system capable of fault diagnosis training |
| CN114783238B (en) * | 2021-06-07 | 2024-05-28 | 中国人民解放军海军航空大学 | A shortwave radio teaching system capable of conducting fault diagnosis training |
| CN116153171A (en) * | 2023-01-19 | 2023-05-23 | 上海玖道信息科技股份有限公司 | Simulation test method, device, equipment and medium for uninterruptible power supply |
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