CN211043547U - Reliability life test device for rail transit vehicle power capacitor - Google Patents
Reliability life test device for rail transit vehicle power capacitor Download PDFInfo
- Publication number
- CN211043547U CN211043547U CN201921869098.9U CN201921869098U CN211043547U CN 211043547 U CN211043547 U CN 211043547U CN 201921869098 U CN201921869098 U CN 201921869098U CN 211043547 U CN211043547 U CN 211043547U
- Authority
- CN
- China
- Prior art keywords
- power supply
- capacitor
- electric capacity
- direct current
- alternating current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a reliability life test device for rail transit vehicle electric power electric capacity, including being used for exporting alternating current and direct current power supply, an adjustable environment case for providing adjustable parameter's experimental environment, a collection circuit for carrying out electric capacity discharge circuit that discharges and be used for gathering test result to electric capacity, the electric capacity setting that awaits measuring is at adjustable environment incasement, alternating current and direct current power supply, electric capacity discharge circuit and collection circuit are connected with the electric capacity that awaits measuring respectively, provide the experimental required experimental environment of electric capacity that awaits measuring through adjustable environment case during the experiment, alternating current and direct current power supply applys experimental required alternating current to the electric capacity that awaits measuring, the direct current, gather test result by collection circuit. The utility model has the advantages of simple structure, with low costs, test efficiency and accuracy height and flexibility are strong.
Description
Technical Field
The utility model relates to a track transportation vehicles equipment test technical field especially relates to a reliability life test device for track transportation vehicles electric power electric capacity.
Background
With the higher and higher evaluation requirements of rail transit products on the cost of the whole life cycle, the reliability and the life state of each key component are concerned more and more in the product design process, and the requirement is that the service life of each key component can be accurately evaluated. The power capacitor has many important applications on rail transit vehicles such as locomotives, motor cars, urban rails, subways, and the like, such as support capacitance, resonance capacitance, filter capacitance, ground capacitance, and the like. The reliability of the capacitor has an important influence on the stability and safety of vehicle operation, so that the reliability of the power capacitor under the simulated working condition needs to be tested, and meanwhile, the service life needs to be evaluated.
For reliability test and service life evaluation of power capacitors, at present, a single stress is usually applied to a capacitor according to test contents to realize a test one by one, for example, in a temperature/humidity test, reliability and service life of the capacitor under different temperatures/humidities are tested by applying the single temperature/humidity stress, and in a large current/voltage test, reliability and service life of the capacitor under different large currents/voltages are tested by applying the single large current/voltage. However, the power capacitor often bears the comprehensive stress action of high voltage, large current, high temperature and the like simultaneously in the actual operation process of the rail transit vehicle, the traditional single stress test mode has complex test process and low efficiency, the single stress cannot accurately reflect the actual operation working condition of the capacitor, the actual reliability test result precision of the capacitor under different stress levels is not high, and the actual service life of the capacitor is more difficult to further and accurately evaluate.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in: to the technical problem that prior art exists, the utility model provides a simple structure, with low costs, test efficiency and accuracy height and the strong reliability life test device who is used for rail transit vehicle electric power electric capacity of flexibility.
In order to solve the technical problem, the utility model provides a technical scheme does:
the utility model provides a reliability life test device for track transportation vehicles electric power electric capacity, is including the alternating current-direct current power that is used for exporting alternating current and direct current, the adjustable environment case that is used for providing adjustable parameter's test environment, be used for carrying out the electric capacity discharge circuit that discharges and be used for gathering the acquisition circuit of test result to the electric capacity that awaits measuring, the electric capacity that awaits measuring sets up in the adjustable environment case, alternating current-direct current power, electric capacity discharge circuit and acquisition circuit are connected with the electric capacity that awaits measuring respectively, pass through during the experiment the adjustable environment case provides the required test environment of electric capacity that awaits measuring test, alternating current-direct current power applys required alternating current, direct current of test to the electric capacity that.
Further, the alternating current/direct current power supply is an alternating current/direct current superimposed power supply which outputs a superimposed direct current voltage and an alternating current voltage or outputs a superimposed direct current voltage and an alternating current.
Further, the adjustable environment box is an environment box capable of adjusting temperature and/or humidity.
Further, the acquisition circuit comprises an oscilloscope.
Furthermore, the output end of the alternating current/direct current power supply and the input end of the capacitor discharge circuit are respectively provided with a control switch, and when the capacitor needs to be discharged, the alternating current/direct current power supply is disconnected and the capacitor discharge circuit is connected through the control switches.
Furthermore, the capacitance discharge circuit comprises more than two discharge units connected in parallel, each discharge unit comprises more than one discharge resistor, each discharge unit is also provided with a control switch, and the control switch controls the connection or disconnection of the corresponding discharge unit.
Furthermore, when the capacitor to be tested needs to be discharged, one discharging unit is controlled to be connected, and when the voltage of the capacitor to be tested is reduced to a preset level, one or more other discharging units are controlled to be connected for deep discharging.
The low-voltage control circuit receives an external control instruction, receives feedback signals of the alternating current/direct current power supply and the capacitor discharge circuit respectively, and sends a control instruction to the alternating current/direct current power supply and the capacitor discharge circuit so as to control starting and stopping of the test or control starting and stopping of capacitor discharge.
Further, the low-voltage control circuit adopts a P L C module.
Further, an input module DI of the P L C module is respectively provided with one or more input points for receiving one or more of external control start, stop, and emergency stop, and is respectively provided with one or more input points for receiving one or more of an input feedback signal of the ac/dc power supply, an output feedback signal of the ac/dc power supply, a feedback signal of the control switch at the output end of the ac/dc power supply, and a feedback signal of the control switch at the input end of the capacitor discharge circuit, and an output module DO is respectively provided with one or more output points for transmitting one or more of a control signal of the control switch at the output end of the ac/dc power supply, a control signal of the control switch at the input end of the capacitor discharge circuit, a remote control power supply stop control instruction, an alarm signal start signal, and an operation state indication signal.
Compared with the prior art, the utility model has the advantages of:
1. the utility model discloses by alternating current-direct current power supply, adjustable environment case, electric capacity discharge circuit and acquisition circuit constitute one set of track transportation vehicles electric power electric capacity test device, through dispose alternating current-direct current power supply simultaneously, adjustable environment case, can apply different alternating current-direct current stress and multiple stress such as environmental stress simultaneously, thereby can accurately simulate the comprehensive stress environment that the condenser receives in the actual motion in-process among the track transportation vehicles, improve the accuracy of condenser reliability and life-span aassessment under the different stress, and the operation is simple and convenient, the flexibility is strong, can satisfy the experimental demand of various differences through one set of device.
2. The utility model discloses further through alternating current-direct current superimposed power supply, can be simultaneously to the required DC voltage of the electric capacity that awaits measuring applys, alternating voltage or alternating current's superimposed stress, it can be convenient to combine adjustable environment case, accurate to the electric capacity simulation site application operating mode applied voltage stress, current stress and environmental stress, make the reliability test design and the on-the-spot running condition of electric capacity combine closely, the test result will be more close the on-the-spot actual condition of failure, thereby can arouse the condenser defect, reappear on-the-spot trouble, the actual operation life of condenser is forecasted more accurately.
Drawings
Fig. 1 is a schematic structural diagram of a reliability life test device for a rail transit vehicle power capacitor according to the embodiment.
Fig. 2 is a schematic structural diagram of a reliability life testing apparatus in an embodiment of the present invention.
Fig. 3 is a schematic view of a point location configuration structure of a low-voltage control loop in an embodiment of the present invention.
Illustration of the drawings: 1. an AC/DC power supply; 2. an adjustable environmental chamber; 3. a capacitor discharge circuit; 4. and an acquisition circuit.
Detailed Description
The invention will be further described with reference to the drawings and specific preferred embodiments without limiting the scope of the invention.
As shown in fig. 1, the reliability life test device for the power capacitor of the rail transit vehicle of the embodiment includes an ac/dc power supply 1 for outputting ac and dc, an adjustable environment box 2 for providing environment parameters adjustable, a capacitor discharge circuit 3 for discharging the capacitor to be tested and an acquisition circuit 4 for acquiring test results, the capacitor to be tested is disposed in the adjustable environment box 2, the ac/dc power supply 1, the capacitor discharge circuit 3 and the acquisition circuit 4 are respectively connected with the capacitor to be tested, the test environment required by the test of the capacitor to be tested is provided through the adjustable environment box 2 during the test, the ac/dc power supply 1 applies ac and dc required by the test to the capacitor to be tested, and the acquisition circuit 4 acquires the test results.
The embodiment is composed of an alternating current-direct current power supply 1, an adjustable environment box 2, a capacitance discharge circuit 3 and an acquisition circuit 4 to form a set of rail transit vehicle power capacitance test device, the alternating current-direct current power supply 1 and the adjustable environment box 2 are configured simultaneously, different alternating current-direct current stresses, environmental stresses and other multiple stresses can be applied simultaneously, and therefore the comprehensive stress environment of the capacitor in the rail transit vehicle in the actual operation process can be simulated accurately according to the characteristics of the field operation conditions, the reliability of the capacitor under different stresses and the accuracy of service life evaluation are improved, the operation and the use are simple and convenient, the flexibility is high, and the requirements of various different tests can be met through a set of device. In specific application, alternating current and direct current with different sizes can be applied by adjusting the alternating current-direct current power supply 1, environmental stress with different sizes can be applied by adjusting the adjustable environmental box 2, appropriate stress can be applied according to different operating conditions, and different test requirements are met.
In this embodiment, the ac/dc power supply 1 is specifically an ac/dc power supply that outputs dc voltage, ac voltage, or outputs dc voltage, ac current, and can simultaneously output dc voltage, ac voltage, or ac current, so that the required dc voltage, ac voltage, or ac current can be simultaneously applied to the capacitor to be tested according to the test requirements, and in combination with the adjustable environmental box 2, the voltage stress, current stress, and environmental stress can be conveniently and accurately applied to the capacitor to simulate the field application condition, so that the reliability test design of the capacitor is tightly combined with the field operation condition, and the test result will be closer to the field actual failure condition, thereby being able to excite the capacitor defect, reproduce the field failure, and predict the actual operation life of the capacitor more accurately. Amplitude and frequency in the alternating current-direct current power supply 1 can be specifically configured to be adjustable, and the level of applied electric stress can be adjusted in a large range so as to meet the requirements of different tests.
In this embodiment, the ac/dc power supply 1 may specifically adopt an ac/dc superimposed power supply outputting a superimposed dc voltage and an ac voltage or outputting a superimposed dc voltage and an ac current, and may apply an electrical stress superimposed by ac/dc at the same time, so as to meet the requirements of testing a capacitor under a large voltage and a large current.
In a specific application embodiment, the ac/dc superimposed power supply may adopt an ac/dc superimposed ripple power supply, for example, a precision ripple power supply with a display function of output voltage and output current may be adopted, and the ripple power supply is specifically provided with three output terminals, where a1 and a2 are dc output positive and ac output terminals, B is dc output negative, two dc constant voltages with equal magnitude and ac voltages or ac currents with equal magnitude and same frequency are generated at two ends of a1-B and a 2-B. As shown in fig. 2, in the specific application embodiment, the capacitors to be tested are composed of C1 and C2, two ends of the capacitors to be tested C1 and C2 are respectively connected to output ends of the ripple power supply, that is, electrical stress superimposed by ac and dc can be simultaneously applied to the capacitors to be tested C1 and C2, and the output end of the ac/dc power supply 1 is further provided with control contactors KX1 and KX2 to control the connection or disconnection of the ac/dc power supply 1.
In this embodiment, adjustable environment case 2 specifically adopts the environment case of adjustable temperature, humidity, can set up the temperature, the humidity environment of applying the experimental environment of condenser to include temperature, humidity and temperature, humidity change to simulate the condenser, realize the reliability life assessment of condenser under different temperature, humidity. Particularly, if a high and low temperature environment box capable of being set with high and low temperatures can be adopted, the capacitor to be tested is placed in the high and low temperature environment box in the test process, the temperature and the humidity during the test are set according to needs, the temperature and the humidity can be constant, the temperature and the humidity can also be changed alternately, and the test requirements of high-temperature examination, temperature circulation and impact, high-temperature and high-humidity examination and the like on the capacitor can be met.
The ripple power supply and the high-low temperature environment box are arranged through integration, the ripple power supply and the high-low temperature environment box are combined for use, synchronous application of alternating current/direct current ripple electric stress and environmental stress can be achieved, multiple stresses such as direct current voltage, ripple current and temperature environment can be applied to the capacitor to be tested as required, optimal simulation of operation conditions of the capacitor can be achieved, and reliability and field operation life of the capacitor are accurately evaluated.
In this embodiment, the output of alternating current and direct current power supply 1 and the input of capacitance discharge circuit 3 are provided with control switch respectively, when needs discharge the electric capacity, through control switch disconnection alternating current and direct current power supply 1, insert capacitance discharge circuit 3, after experimental pause or the end, can discharge the processing to the electric capacity that awaits measuring through inserting capacitance discharge circuit 3. Specifically, as shown in fig. 2, contactors KX1 and KX2 are provided at the output terminal of the ac/dc power supply 1, and contactors KX3 and KX4 are provided at the input terminal of the capacitor discharge circuit 3.
In this embodiment, the capacitor discharge circuit 3 includes more than two discharge units connected in parallel, each discharge unit includes more than one discharge resistor, each discharge unit is further provided with a control switch, the corresponding discharge unit is controlled to be connected or disconnected through each control switch, and the discharge units connected in different quantities can be controlled according to actual requirements to realize discharge in different degrees. If when the capacitor to be measured needs to be discharged, one discharging unit is controlled to be connected, when the voltage of the capacitor to be measured is reduced to a preset level, one or more other discharging units are controlled to be connected to perform deep discharging, and the rapid deep discharging of the capacitor can be realized by adopting a grading discharging mode.
As shown in fig. 2, in a specific application embodiment, the capacitor discharge circuit 3 specifically includes two groups of discharge units, which are respectively configured to discharge the capacitor C1 and the capacitor C2, each group of discharge units is composed of two discharge resistors R1 (R1 ') and R2 (R2'), where the specific configuration is R1= R1'> > R2= R2', a first discharge unit (formed by R1 and R1 ') is configured to correspond to the discharge contactors KX3 and KX4 to control connection and disconnection, and a second discharge unit (formed by the deep discharge resistors R2 and R2') is configured to correspond to the deep discharge contactor KX5 to control connection and disconnection, and two-stage discharge is implemented by the two discharge units. When the test is suspended or finished, the tested capacitor needs to be subjected to discharge treatment, at the moment, the alternating current/direct current power supply 1 is firstly disconnected, the discharge contactors KX3 and KX4 are closed, the capacitors C1 and C2 respectively start to discharge through the discharge resistors R1 and R1 'of the first discharge unit, when the voltage on the capacitors is discharged to a lower level (the voltage is smaller than a preset threshold value), the deep discharge contactor KX5 is closed, the deep discharge resistors R2 and R2' are connected in parallel in a discharge loop until the discharge of the two capacitors is finished, and by adopting a two-stage discharge mode, the rapid deep discharge of the capacitor can be realized, and the rapid deep discharge of the capacitor is ensured.
In this embodiment, the acquisition circuit 4 specifically adopts an oscilloscope, and the display and recording functions of the oscilloscope can be used to realize visual monitoring of the whole test process, so as to ensure the completeness of the test process, and improve the safety of the test, including ensuring the safety of the capacitor discharge process. As shown in fig. 2, in the specific application embodiment, the voltage levels across the capacitors C1 and C2 and the voltage variation process across the discharge resistor during the discharge process can be detected by the high-voltage differential probe, and then the ripple current level across the capacitors C1 and C2 can be detected by the flexible current probe.
In this embodiment, the device further includes a low-voltage control circuit 5 connected to the ac/dc power supply 1 and the capacitor discharge circuit 3, where the low-voltage control circuit 5 receives an external control instruction and feedback signals of the ac/dc power supply 1 and the capacitor discharge circuit 3, respectively, and sends the control instruction to the ac/dc power supply 1 and the capacitor discharge circuit 3 to control starting and stopping of the test or starting and stopping of the capacitor discharge. The high-voltage test loop is controlled by the low-voltage loop, so that the test safety can be greatly improved, and the test can be automatically controlled.
In this embodiment, the low-voltage control circuit 5 specifically adopts a P L C module, and utilizes P L C to automatically control the whole testing process, so that full-automatic execution of the testing process can be realized, the testing process can be greatly simplified, the intelligent manufacturing requirement is met, and the testing safety and the testing efficiency are greatly improved.
In this embodiment, the input module DI of the P L C module is provided with input points for receiving external control start, stop, and emergency stop, and input points for receiving input feedback signals (ripple power input feedback signals) of the ac/dc power supply 1, output feedback signals (ripple power output feedback signals) of the ac/dc power supply 1, feedback signals (contactor KX1 and KX2 feedback signals) of the control switch at the output terminal of the ac/dc power supply 1, feedback signals (contactor KX3 to KX5 feedback signals) of the control switch at the input terminal of the capacitive discharge circuit 3, and output points for transmitting control signals ((contactor KX1 and KX2 control signals)) of the control switch at the input terminal of the capacitive discharge circuit 3, control signals (contactor KX 45 to KX5 control signals) of the control switch at the input terminal of the capacitive discharge circuit 3, a remote control power supply stop control command, an alarm signal start signal, and an operation state indication signal, respectively.
In a specific application embodiment, as shown in fig. 3, in this embodiment, a low-voltage control loop is implemented through P L C, an input voltage is specifically ac 220V, and a P L C module point is specifically configured as:
INPUT point location:
input point 0: a start button;
input point 1: a stop button;
input point 2: an emergency stop button;
input point 3: inputting a feedback signal by a ripple power supply;
input point 4: the ripple power supply outputs a feedback signal;
input point 5: feeding back a signal by a short-circuit contactor KX 1;
input point 6: feeding back a signal by a short-circuit contactor KX 2;
input point 7: the discharge contactor KX3 feeds back a signal;
input point 8: the discharge contactor KX4 feeds back a signal;
input point 9: the KX5 feedback signal;
input point 10: a reset signal.
OUTPUT point location:
output point 0: a deep discharge contactor KX5 control command;
output point 1: short circuit contactor KX1 control command;
output point 2: short circuit contactor KX2 control command;
output point 3: a discharging contactor KX3 control command;
output point 4: a discharging contactor KX4 control command;
output point 5: remotely controlling a ripple power supply stop instruction;
output point 6: a sound-light alarm starting signal;
output point 7: sound and light alarm starting signal;
output point 8: running indicator light (green).
In a specific application embodiment, based on the test device shown in fig. 2, the detailed steps of the control logic during the starting, stopping and emergency stopping processes by using the above point P L C module are as follows:
1. during the starting process:
A. press start button command-execute next step:
B. detecting whether the ripple power supply input is electrified or not, and executing the next step if the safety door is closed, namely the safety door is electrified and closed;
C. detecting whether the ripple power supply is output or not, if not, executing the next step, otherwise, reporting an error;
D. the short-circuit contactors KX1 and KX2 are electrified and closed, and the next step is executed;
E. detecting whether short-circuit contactors KX1 and KX2 are attracted or not, confirming attraction, and executing the next step;
F. receiving a starting AC/DC ripple output feedback signal-executing the next step;
G. running an alarm indicator light on, displaying that the test is going on, and executing the next step;
H. and (5) operating for z min according to the preset test time, and waiting for executing the next step.
2. The shutdown process:
A. receiving a command of pressing a stop button or reaching a preset test time-executing the next step:
B. receiving ripple power output off signal (manual) -execute next step;
C. delay 0.5 s-execute next step;
D. controlling the discharge contactors KX3 and KX4 to be electrified for pull-in, and executing the next step;
E. detecting that the discharge contactors KX3 and KX4 are attracted, confirming that the contactors are attracted, and executing the next step;
F. setting a time delay x min (discharging the capacitor from a high-voltage state to a low-voltage state) according to specific test requirements, and executing the next step;
G. controlling the KX5 of the deep discharge contactor to be electrified and attracted;
H. detecting whether the deep discharge contactor KX5 is attracted, confirming that attraction is achieved, and executing the next step;
I. wait y min (fully discharge capacitor) -execute the next step;
J. controlling the short-circuit contactors KX1 and KX2 to be disconnected, and executing the next step;
K. detecting that the short-circuit contactors KX1 and KX2 are disconnected, confirming that the short-circuit contactors are disconnected, and executing the next step;
l, end;
3. an emergency shutdown process:
A. receiving an instruction of pressing an emergency stop button-executing the next step;
B. remotely controlling the ripple power supply to stop, namely executing the next step;
C. detecting whether the ripple power supply input is disconnected or not-executing the next step;
D. if the ripple power supply input is disconnected, the next step is directly executed, otherwise, the acousto-optic alarm sound alarm is started, and the next step is executed;
E. controlling the discharge contactors KX3 and KX4 to pick up-executing the next step;
F. detecting whether the discharge contactors KX3 and KX4 are attracted, namely confirming attraction, and executing the next step;
G. delay x min (same as the downtime process) -execute the next step;
H. controlling a deep discharge contactor KX5 to pick up, and executing the next step;
I. detecting whether the deep discharge contactor KX5 is attracted, confirming attraction and executing the next step;
J. delay y min (same as shutdown, capacitor deep discharge completed) — execute the next step;
K. controlling the short-circuit contactors KX1 and KX2 to be disconnected, and executing the next step;
l, detecting whether the short-circuit contactors KX1 and KX2 are disconnected or not, confirming the disconnection, and executing the next step;
and M, ending.
The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention, all without departing from the contents of the technical solution of the present invention.
Claims (10)
1. The utility model provides a reliability life test device for rail transit vehicle power capacitor which characterized in that: including being used for exporting alternating current and direct current alternating current direct current power supply (1), being used for providing adjustable parameter's test environment adjustable environment case (2), be used for to await measuring electric capacity carry on electric capacity discharge circuit (3) and be used for gathering acquisition test result acquisition circuit (4), the electric capacity setting that awaits measuring is in adjustable environment case (2), alternating current direct current power supply (1), electric capacity discharge circuit (3) and acquisition circuit (4) are connected with the electric capacity that awaits measuring respectively, pass through during the experiment adjustable environment case (2) provide the experimental required test environment of electric capacity that awaits measuring, alternating current direct current power supply (1) applys experimental required alternating current, direct current to the electric capacity that awaits measuring, by acquisition test result is gathered in acquisition circuit (4).
2. The reliability life test device for the rail transit vehicle power capacitor as claimed in claim 1, wherein: the alternating current and direct current power supply (1) is an alternating current and direct current superimposed power supply which outputs the superimposed direct current voltage and alternating current voltage or outputs the superimposed direct current voltage and alternating current.
3. The reliability life test device for the rail transit vehicle power capacitor as claimed in claim 1, wherein: the adjustable environment box (2) is an environment box capable of adjusting temperature and/or humidity.
4. The reliability life test device for the rail transit vehicle power capacitor as claimed in claim 1, wherein: the acquisition circuit (4) comprises an oscilloscope.
5. The reliability life test device for the rail transit vehicle power capacitor as claimed in any one of claims 1-4, wherein: the output end of the alternating current-direct current power supply (1) and the input end of the capacitor discharge circuit (3) are respectively provided with a control switch, and when the capacitor needs to be discharged, the alternating current-direct current power supply (1) is disconnected through the control switches and the capacitor discharge circuit (3) is connected.
6. The reliability life test device for the rail transit vehicle power capacitor as claimed in any one of claims 1-4, wherein: the capacitor discharge circuit (3) comprises more than two discharge units connected in parallel, each discharge unit comprises more than one discharge resistor, each discharge unit is also provided with a control switch, and the control switches are used for controlling the connection or disconnection of the corresponding discharge units.
7. The reliability life test device for the rail transit vehicle power capacitor as claimed in claim 6, wherein: when the capacitor to be tested needs to be discharged, one discharging unit is controlled to be connected, and when the voltage of the capacitor to be tested is reduced to a preset level, one or more other discharging units are controlled to be connected to perform deep discharging.
8. The reliability life test device for the rail transit vehicle power capacitor as claimed in any one of claims 1-4, wherein: still include respectively with alternating current-direct current power supply (1), low-voltage control circuit (5) that electric capacity discharge circuit (3) are connected, low-voltage control circuit (5) receive external control instruction and receive respectively alternating current-direct current power supply (1), electric capacity discharge circuit's (3) feedback signal to and send control instruction give alternating current-direct current power supply (1), electric capacity discharge circuit (3) to control start, stop test or control start, stop electric capacity discharge.
9. The reliability life test device for the rail transit vehicle power capacitor as claimed in claim 8, wherein the low-voltage control circuit (5) adopts a P L C module.
10. The reliability life test device for the rail transit vehicle power capacitor as claimed in claim 9, wherein the input module DI of the P L C module is respectively provided with an input point for receiving one or more of external control start, stop and emergency stop, and is respectively provided with an input point for receiving one or more of an input feedback signal of the AC/DC power supply (1), an output feedback signal of the AC/DC power supply (1), a feedback signal of a control switch at an output end of the AC/DC power supply (1) and a feedback signal of a control switch at an input end of the capacitor discharge circuit (3), and the output module DO is respectively provided with an output point for transmitting one or more of a control signal of the control switch at the output end of the AC/DC power supply (1), a control signal of the control switch at an input end of the capacitor discharge circuit (3), a remote control power supply stop control instruction, an alarm signal start signal and an operation state indication signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921869098.9U CN211043547U (en) | 2019-11-01 | 2019-11-01 | Reliability life test device for rail transit vehicle power capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921869098.9U CN211043547U (en) | 2019-11-01 | 2019-11-01 | Reliability life test device for rail transit vehicle power capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211043547U true CN211043547U (en) | 2020-07-17 |
Family
ID=71538759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921869098.9U Active CN211043547U (en) | 2019-11-01 | 2019-11-01 | Reliability life test device for rail transit vehicle power capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211043547U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112162163A (en) * | 2020-09-24 | 2021-01-01 | 南京璞骏新能源技术有限公司 | Novel high-voltage direct-current capacitor large-current testing device |
-
2019
- 2019-11-01 CN CN201921869098.9U patent/CN211043547U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112162163A (en) * | 2020-09-24 | 2021-01-01 | 南京璞骏新能源技术有限公司 | Novel high-voltage direct-current capacitor large-current testing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212540654U (en) | Power battery pack test system | |
| JPH04505053A (en) | How to monitor aircraft battery | |
| CN106019002A (en) | Verification testing platform for battery management system and testing method thereof | |
| CN106371024A (en) | Battery management system testing apparatus | |
| CN103344936A (en) | Method for fault simulation test of capacitor voltage transformer | |
| CN104793058A (en) | High-voltage insulating resistance monitoring alarm device and working method thereof | |
| EP2492700B1 (en) | Test system and method of testing battery pack | |
| CN201449435U (en) | Interturn pressure test device | |
| CN211043547U (en) | Reliability life test device for rail transit vehicle power capacitor | |
| CN202975311U (en) | Comprehensive performance testing platform of battery management system | |
| CN104020357A (en) | Capacitance test circuit and test method under DC bias condition | |
| CN207752134U (en) | Portable electric test apparatus function inspection device | |
| CN205826731U (en) | Running voltage measuring box | |
| CN111736051A (en) | High-power capacitor charging and discharging test system and test method | |
| CN106093664A (en) | Electric car conduction charging measurement system | |
| CN111736066A (en) | Automatic testing device for detecting circuit breaker | |
| CN115453230A (en) | Pure electric vehicles BDU integrates test system based on circuit reconfiguration | |
| CN205080192U (en) | A intelligent insulation tester for track transportation vehicles | |
| CN209961856U (en) | Detection device for inverter module | |
| CN101907667A (en) | Performance test-bed of high-voltage equipment box | |
| CN210514521U (en) | Insulation and voltage resistance inspection device | |
| CN109342971B (en) | Fill electric pile part quality detecting system and fill electric pile part detecting system of alternating current direct current | |
| CN106896320B (en) | PLC board simulation detection jig | |
| CN217332646U (en) | Anti-ripple interference capability assessment device and system | |
| CN206223948U (en) | A kind of test system of automobile starting power source aging |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |