CN215953788U - Locomotive high-voltage isolating switch testing device - Google Patents
Locomotive high-voltage isolating switch testing device Download PDFInfo
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- CN215953788U CN215953788U CN202121180940.5U CN202121180940U CN215953788U CN 215953788 U CN215953788 U CN 215953788U CN 202121180940 U CN202121180940 U CN 202121180940U CN 215953788 U CN215953788 U CN 215953788U
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Abstract
The embodiment of the utility model discloses a testing device for a locomotive high-voltage isolating switch, which comprises a control module, a driving module and a state detection module, wherein the control module is used for controlling the state detection module; wherein: the driving module is used for being connected with the isolating switch to be tested and generating a driving signal so as to drive the isolating switch to be tested; the state detection module is used for being connected with the isolating switch to be detected and detecting the running state information of the isolating switch to be detected in the testing process; the control module is used for controlling the driving module to generate the driving signal when a test instruction is acquired; and the controller is also used for controlling the corresponding change of the driving signal when a driving signal change instruction is acquired. The locomotive high-voltage isolating switch testing device provided by the embodiment of the utility model realizes the effect of further reducing the work burden of operators by reducing operation steps on the basis of accurately analyzing the state of the locomotive high-voltage isolating switch through the synergistic action of the control module, the driving module and the state detection module.
Description
Technical Field
The embodiment of the utility model relates to the technical field of electric control testing, in particular to a testing device for a locomotive high-voltage isolating switch.
Background
With the continuous promotion of railway construction in China, the number of locomotives in operation is increased rapidly, locomotive equipment is aged and parts are seriously damaged after long-time operation, and locomotive testing and maintenance work needs to be carried out regularly by railway departments. As one of key elements for ensuring the stable operation of a locomotive circuit, a high-voltage isolating switch is a key test object of an operator.
Currently, existing locomotive high voltage isolation switches generally require an operator to test by manually simulating the power supply. The operating personnel use different test equipment alternately to detect the states of different parts of the high-voltage isolating switch, and after comprehensively analyzing a plurality of test results of the different parts, the overall state of the locomotive high-voltage isolating switch is evaluated based on the existing test experience.
For a locomotive high-voltage isolating switch test mode of manual power supply simulation, firstly, the test time of the mode is long, the efficiency is low, and the test requirements of industrialization and automation are difficult to meet; secondly, the test equipment used in the method is complicated, and the test results of a plurality of pieces of equipment need to be comprehensively analyzed by operators, so that the operation difficulty and task burden of the operators are increased; and finally, the operating personnel judge the state of the locomotive high-voltage isolating switch mechanism based on self test experience, so that the test precision of the locomotive high-voltage isolating switch is reduced.
Disclosure of Invention
The embodiment of the utility model provides a testing device for a locomotive high-voltage isolating switch, which is used for realizing the accurate test of the locomotive high-voltage isolating switch and further reducing the workload of operators by reducing operation steps.
The embodiment of the utility model provides a testing device for a locomotive high-voltage isolating switch, which comprises a control module, a driving module and a state detection module, wherein the control module is used for controlling the state detection module to detect the state of a locomotive high-voltage isolating switch; wherein:
the driving module is used for being connected with the isolating switch to be tested and generating a driving signal so as to drive the isolating switch to be tested;
the state detection module is used for being connected with the isolating switch to be detected and detecting the running state information of the isolating switch to be detected in the testing process;
the control module is used for controlling the driving module to generate the driving signal when a test instruction is acquired; the driving module is also used for controlling the driving module to enable the driving signal to change correspondingly when a driving signal change instruction is obtained;
the control module is further configured to acquire the running state information of the to-be-tested disconnecting switch from the state detection module, and judge the running state of the to-be-tested disconnecting switch according to the running state information of the to-be-tested disconnecting switch and a set judgment rule; the device is also used for connecting with a contact switch of the isolating switch to be tested so as to obtain the position state information of the contact switch, and judging the position state information of the isolating switch to be tested according to the position state information of the contact switch and a set judgment rule.
According to the technical scheme provided by the embodiment of the utility model, the control module is arranged to obtain the operation instruction; according to the obtained operation instruction, the control module controls the driving module to provide action excitation for the isolating switch to be tested, and simultaneously controls the state detection module to detect the running state information of the isolating switch to be tested; the control module finishes the test operation of the isolating switch to be tested by acquiring the running state information and the position state information of the isolating switch to be tested, overcomes the defects of long operation time, complex detection equipment and low test precision of the existing manual simulation power supply test mode, and achieves the effect of further lightening the work burden of operators by reducing operation steps on the basis of accurately testing the state of the high-voltage isolating switch of the locomotive.
Drawings
Fig. 1 is a schematic structural diagram of a testing device for a locomotive high-voltage disconnecting switch according to a first embodiment of the utility model;
fig. 2 is a schematic structural diagram of a testing device for a locomotive high-voltage disconnecting switch according to a second embodiment of the utility model;
fig. 3 is a block diagram of a testing apparatus for a locomotive high-voltage isolation switch according to a second embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad invention. It should be further noted that, for convenience of description, only some structures, not all structures, relating to the embodiments of the present invention are shown in the drawings.
Example one
Fig. 1 is a schematic structural diagram of a testing apparatus for a locomotive high-voltage disconnecting switch according to an embodiment of the present invention. As shown in fig. 1, the testing device for the locomotive high-voltage isolating switch comprises: a control module 110, a drive module 120, and a status detection module 130; wherein:
the driving module 120 is configured to be connected to a to-be-tested isolator, and generate a driving signal to drive the to-be-tested isolator;
the state detection module 130 is configured to be connected to the to-be-tested disconnecting switch, and detect operation state information of the to-be-tested disconnecting switch in a test process;
the control module 110 is configured to control the driving module 120 to generate the driving signal when a test instruction is obtained; the driver module 120 is further configured to control the driver module 120 to change the driving signal accordingly when a driving signal change instruction is obtained;
the control module 110 is further configured to obtain the operation state information of the to-be-tested disconnecting switch from the state detection module 130, and determine the operation state of the to-be-tested disconnecting switch according to the operation state information of the to-be-tested disconnecting switch and a set determination rule; the device is also used for connecting with a contact switch of the isolating switch to be tested so as to obtain the position state information of the contact switch, and judging the position state information of the isolating switch to be tested according to the position state information of the contact switch and a set judgment rule.
The driving module 120 may be a power supply, or may be a gas supply source, or may be a combined driving device; the connection link between the driving module 120 and the to-be-tested disconnecting switch may be an electrical link, or may be a gas link, or may be a combined connection link.
The to-be-tested isolating switch is used for receiving the driving signal generated by the driving module 120 and completing corresponding switching-off or switching-on actions according to the driving signal; the isolating switch to be tested can be an electric isolating switch, a pneumatic isolating switch or a combined isolating switch; the movement mode of the to-be-tested isolating switch can be horizontal rotation, vertical rotation, swing or insertion, and the embodiment of the utility model is not limited to this; the number of the supporting insulators of the isolating switch to be tested can be single, or can be two, or can be three; the number of poles of the to-be-tested isolating switch can be single or three, which is not limited in the embodiment of the utility model; the number of the attached grounding switches or grounding devices of the isolating switch to be tested can be zero, or can be one, or can be two; the installation position of the to-be-tested isolating switch can be the locomotive roof or the inside of a locomotive high-voltage cabinet, which is not limited in the embodiment of the utility model.
The driving signal is generated by the driving module 120 and is used for driving the to-be-tested disconnecting switch; the type of the driving signal can be an electric signal, a pneumatic signal or a combined signal; the transmission mode of the driving signal may be wired transmission or wireless transmission, which is not limited in this embodiment of the present invention.
The state detection module 130 may be configured to detect an optical electrical signal, a force signal, a distance signal, a sound signal, a vibration signal, or an electromagnetic signal, for example, a photoelectric sensor, a force sensor, a distance sensor, a sound sensor, a vibration sensor, or a magnetic induction sensor, which is not limited in this embodiment of the present invention; the installation position of the state detection module 130 is related to the working principle and the specific structure of the to-be-tested disconnecting switch, which is not limited in this embodiment of the present invention.
The operation state information may be a detection object of the state detection module 130, or may also be a judgment basis for the control module 110 to judge the operation state of the to-be-detected disconnecting switch, which can embody the operation state of the to-be-detected disconnecting switch and is related to the type or model of the to-be-detected disconnecting switch, and this is not limited in the embodiment of the present invention; the data signal type of the operation state information may be a photoelectric signal, a force signal, a distance signal, a sound signal, a vibration signal, or an electromagnetic signal; the transmission mode of the operation state information may be wired transmission or may be wireless transmission.
The control module 110 may be a single chip microcomputer, a system on a chip, a digital signal processor, or a PLC controller.
The test instruction is used for controlling the driving module 120 to generate the driving signal through the control module 110, and a number system of the test instruction may be binary, which is not limited in this embodiment of the present invention; the transmission mode of the test instruction can be wired transmission or wireless transmission.
The driving signal change instruction is used for controlling the driving signal to change correspondingly through the control module 110, and a number system of the driving signal change instruction may be a binary system, which is not limited in this embodiment of the present invention; the transmission mode of the driving signal change instruction may be wired transmission or may be wireless transmission.
The setting mode of the judgment rule can be set in advance for an operator, or can be set for system initialization.
Because the contact switches of different types or kinds of isolating switches have different working principles, the contact switches can be the normally closed contact and the normally open contact of the isolating switch corresponding to the opening contact and the closing contact, and can also be the normally open contact and the normally closed contact of the isolating switch corresponding to the opening contact and the closing contact.
In a specific example, when the isolating switch is in the open state, the normally closed contact of the contact switch is closed, and the state detecting module 130 transmits the detected open position state information to the control module 110; when the disconnecting switch is in a closing state, the normally open contact of the contact switch is closed, and the state detection module 130 transmits the detected closing position state information to the control module 110.
In another specific example, when the disconnecting switch is in the open state, the normally open contact of the contact switch is closed, and the state detection module 130 transmits the detected open position state information to the control module 110; when the disconnecting switch is in a closing state, the normally closed contact of the contact switch is closed, and the state detection module 130 transmits the detected closing position state information to the control module 110.
According to the technical scheme of the embodiment, the control module is arranged to obtain the operation instruction; according to the obtained operation instruction, the control module controls the driving module to provide action excitation for the isolating switch to be tested, and simultaneously controls the state detection module to detect the running state information of the isolating switch to be tested; the control module finishes the test operation of the isolating switch to be tested by acquiring the running state information and the position state information of the isolating switch to be tested, overcomes the defects of long operation time, complex detection equipment and low test precision of the existing manual simulation power supply test mode, and achieves the effect of further lightening the work burden of operators by reducing operation steps on the basis of accurately testing the state of the high-voltage isolating switch of the locomotive.
Example two
Fig. 2 is a schematic structural diagram of a testing apparatus for a locomotive high-voltage disconnector according to a second embodiment of the present invention, and fig. 3 is a block diagram of the testing apparatus for the locomotive high-voltage disconnector according to the second embodiment of the present invention. As shown in fig. 2, the testing device for the locomotive high-voltage isolating switch comprises: a control module 110, a drive module 120, and a status detection module 130; further comprising:
a human-computer interaction module 140 connected to the control module 110, configured to generate and send the test instruction and the driving signal change instruction to the control module 110; and the system is also used for displaying the running state information of the isolating switch to be tested and the position state information of the isolating switch to be tested.
Optionally, the driving module 120 includes at least one of: an adjustable switching power supply 121 or an electric control gas circuit regulating valve 122;
the adjustable switching power supply 121 is specifically configured to be connected to a solenoid valve coil of the to-be-tested isolator, and generate a voltage and/or current driving signal to drive the to-be-tested isolator;
the electric control gas circuit regulating valve 122 is specifically used for being connected with a cylinder of the to-be-tested isolating switch to generate a gas pressure driving signal so as to drive the to-be-tested isolating switch.
Optionally, the state detection module 130 includes at least one of: a voltage sensor 131, a current sensor 132, or an air pressure sensor 133;
the voltage sensor 131 is specifically used for being connected with the solenoid valve coil of the to-be-tested isolating switch, and detecting voltage operation state information of the solenoid valve coil of the to-be-tested isolating switch in a testing process;
the current sensor 132 is specifically configured to be connected to a solenoid valve coil loop of the to-be-tested isolator, and detect current running state information of the solenoid valve coil loop of the to-be-tested isolator in a test process;
the air pressure sensor 133 is specifically configured to be connected to an air cylinder of the to-be-tested isolator, and in the testing process, detects air pressure operation state information of the air cylinder of the to-be-tested isolator.
Optionally, the test instruction includes at least one of: a voltage test command, a current test command, an air pressure test command, or a contact switch position test command.
Optionally, the control module 110 is specifically configured to,
controlling the driving module 120 to generate the voltage driving signal according to a voltage testing instruction in the testing instructions;
controlling the driving module 120 to generate the current driving signal according to a current testing instruction in the testing instructions;
controlling the driving module 120 to generate the air pressure driving signal according to an air pressure test instruction in the test instructions;
and controlling the driving module 120 to generate the voltage driving signal, the current driving signal and the air pressure driving signal according to a contact switch position test instruction in the test instruction.
Optionally, the driving signal variation instruction includes at least one of: a voltage increase command, a voltage decrease command, a current increase command, a current decrease command, an air pressure increase command, or an air pressure decrease command.
Optionally, the control module 110 is specifically configured to control the driving module 120 to increase the voltage output value according to a voltage increase instruction in the driving signal change instruction;
controlling the driving module 120 to decrease the voltage output value according to a voltage decrease instruction in the driving signal change instruction;
controlling the driving module 120 to increase the current output value according to a current increase instruction in the driving signal change instruction;
and controlling the driving module 120 to reduce the current output value according to a current reduction command in the driving signal change command.
Optionally, the control module 110 is specifically configured to control the driving module 120 to increase the air pressure output value according to an air pressure increase instruction in the driving signal change instruction;
and controlling the driving module 120 to reduce the air pressure output value according to the air pressure reduction command in the driving signal change command.
As shown in fig. 3, the testing device for the locomotive high-voltage isolating switch comprises: the control module 110, the driving module 120, the state detection module 130 and the human-computer interaction module 140;
optionally, the control module 110 is connected to the human-computer interaction module 140 through a communication port; the input port is connected with a contact switch of the isolating switch to be tested; is connected with the driving module 120 through an output port; connected to the status detection module 130 via a feedback port.
The human-computer interaction module 140 may be an industrial personal computer, or may be a ground station, or may be a laptop.
The test instruction and the drive signal change instruction may be generated according to a key setting of an operator, or may be generated according to a handwriting input setting of the operator using a touch screen, or may be generated according to a voice setting of the operator, or may be generated according to any combination of the above manners, for example, the operator may set the test air pressure drive parameter to 500kPa by pressing keys of "5", "0", and "0", or may set the test air pressure drive parameter to 500kPa by manually writing "500" using the touch screen, or may set the test air pressure drive parameter to 500kPa by the operator by dictating "500".
The transmission signal carrying medium of the test command and the driving signal change command may be a wired signal line or a wireless signal line, which is not limited in this embodiment of the present invention.
The running state information and the position state information of the isolating switch to be tested can be displayed through a display screen, for example, the running state information and the position state information can be displayed through a cathode ray tube display screen, a flat panel display screen or a liquid crystal display screen in a text or digital mode; or the display can be through the indicator light, for example, any color and number of indicator lights or indicator light groups are displayed in a way of being constantly on or alternately on and off at a specific frequency; or the method can be a voice or sound prompting method, for example, the abnormal condition of the isolating switch to be tested can be prompted by broadcasting the 'isolating switch to be tested is normal' through a loudspeaker or by long-ringing at any frequency through a buzzer.
The type of the adjustable switching power supply 121 may be a pulse width modulation type, a pulse frequency modulation type, a pulse density modulation type, or a hybrid modulation type; the adjustable switching power supply 121 may be connected to the control module 110 for providing power to the control module 110.
The electromagnetic valve coil of the to-be-tested isolating switch is used for providing excitation for normal operation of the magnetic core of the electromagnetic valve, when the electromagnetic valve coil is powered on or powered off, the magnetic core of the electromagnetic valve correspondingly operates normally or stops working, and therefore fluid passes through the electromagnetic valve or is cut off from a flow path by the electromagnetic valve, and the flow direction of the fluid is changed.
And the cylinder of the isolating switch to be tested is used for providing pneumatic excitation for normal switching-off and switching-on actions of the isolating switch to be tested.
The communication port is used for receiving the test instruction and the drive signal change instruction generated by the human-computer interaction module 140; the input port is used for receiving the position state information of the contact switch of the isolating switch to be tested; the output port is used for controlling the driving module 120 to generate the driving signal and controlling the driving signal to change correspondingly; the feedback port is configured to receive the operation state information of the to-be-tested isolator, which is acquired by the state detection module 130; the port may be a Serial port, a General-Purpose Interface Bus (GPIB), a Universal Serial Bus (USB), a wireless port, or an optical fiber port.
In a specific example, the industrial personal computer communicates with the PLC through the RS485 interface, the adjustable switching power supply, the electric control gas circuit regulating valve and the PLC are connected through control lines, and the current and voltage sensor, the air pressure sensor and the PLC are connected through analog quantity signals, so that the action command transmission and the operation data exchange of the isolating switch and the industrial personal computer are completed.
The operation personnel set up voltage through the button, behind the increase progressively or the decrement value of electric current and atmospheric pressure, use touch screen input test instruction, test system begins work, the working value of PLC controller control adjustable switching power supply and automatically controlled gas circuit governing valve, and transmit the signal for isolator through the sensor, the isolator action back transmits feedback signal for the PLC controller, the signal transmission that the sensor will gather gives the PLC controller, the PLC controller converts signal data into valid data transmission again and gives the industrial computer, the industrial computer receives and shows isolator operating condition and test parameter that the PLC controller uploaded.
According to the technical scheme, the human-computer interaction module is arranged, the state information of the isolating switch to be tested, which is acquired by the control module, is converted into the visual interaction information, the defects that the testing result of the existing high-voltage isolating switch testing device is not accurate and the human-computer interaction performance is poor are overcome, and the human-computer interaction performance of the device is improved on the basis that the state information of the high-voltage isolating switch is accurately displayed.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. The testing device for the locomotive high-voltage isolating switch is characterized by comprising a control module, a driving module and a state detection module; wherein:
the driving module is used for being connected with the isolating switch to be tested and generating a driving signal so as to drive the isolating switch to be tested;
the state detection module is used for being connected with the isolating switch to be detected and detecting the running state information of the isolating switch to be detected in the testing process;
the control module is used for controlling the driving module to generate the driving signal when a test instruction is acquired; the driving module is also used for controlling the driving module to enable the driving signal to change correspondingly when a driving signal change instruction is obtained;
the control module is further configured to acquire the running state information of the to-be-tested disconnecting switch from the state detection module, and judge the running state of the to-be-tested disconnecting switch according to the running state information of the to-be-tested disconnecting switch and a set judgment rule; the device is also used for connecting with a contact switch of the isolating switch to be tested so as to obtain the position state information of the contact switch, and judging the position state information of the isolating switch to be tested according to the position state information of the contact switch and a set judgment rule.
2. The apparatus of claim 1, further comprising:
the human-computer interaction module is connected with the control module and used for generating and sending the test instruction and the drive signal change instruction to the control module; and the system is also used for displaying the running state information of the isolating switch to be tested and the position state information of the isolating switch to be tested.
3. The apparatus of claim 1, wherein the drive module comprises at least one of: an adjustable switching power supply or an electric control gas circuit adjusting valve;
the adjustable switching power supply is specifically used for being connected with a solenoid valve coil of the to-be-tested isolating switch and generating a voltage and/or current driving signal so as to drive the to-be-tested isolating switch;
the electric control gas circuit regulating valve is specifically used for being connected with a cylinder of the isolating switch to be tested and generating a gas pressure driving signal so as to drive the isolating switch to be tested.
4. The apparatus of claim 1, wherein the status detection module comprises at least one of: a voltage sensor, a current sensor, or an air pressure sensor;
the voltage sensor is specifically used for being connected with the electromagnetic valve coil of the isolating switch to be tested, and detecting the voltage running state information of the electromagnetic valve coil of the isolating switch to be tested in the testing process;
the current sensor is specifically used for being connected with a solenoid valve coil loop of the isolating switch to be tested, and detecting current running state information of the solenoid valve coil loop of the isolating switch to be tested in the testing process;
the air pressure sensor is specifically used for being connected with an air cylinder of the isolating switch to be tested, and in the testing process, the air pressure running state information of the air cylinder of the isolating switch to be tested is detected.
5. The apparatus according to any one of claims 1-4, wherein:
the control module is connected with the man-machine interaction module through a communication port; the input port is connected with a contact switch of the isolating switch to be tested; the output port is connected with the driving module; and the state detection module is connected with the feedback port.
6. The apparatus of claim 1 or 2, wherein the test instructions comprise at least one of: a voltage test command, a current test command, an air pressure test command, or a contact switch position test command.
7. The apparatus of claim 6, wherein:
the control module is specifically configured to control the driving module to generate the voltage driving signal according to a voltage test instruction in the test instruction; controlling the driving module to generate the current driving signal according to a current testing instruction in the testing instructions; controlling the driving module to generate the air pressure driving signal according to an air pressure test instruction in the test instruction; and controlling the driving module to generate the voltage driving signal, the current driving signal and the air pressure driving signal according to a contact switch position testing instruction in the testing instruction.
8. The apparatus of claim 1 or 2, wherein the drive signal change instruction comprises at least one of: a voltage increase command, a voltage decrease command, a current increase command, a current decrease command, an air pressure increase command, or an air pressure decrease command.
9. The apparatus of claim 8, wherein:
the control module is specifically used for controlling the driving module to increase a voltage output value according to a voltage increase instruction in the driving signal change instruction;
controlling the driving module to reduce a voltage output value according to a voltage reduction instruction in the driving signal change instruction;
controlling the driving module to increase a current output value according to a current increase instruction in the driving signal change instruction;
and controlling the driving module to reduce the current output value according to a current reduction instruction in the driving signal change instruction.
10. The apparatus of claim 8, wherein:
the control module is specifically used for controlling the driving module to increase the air pressure output value according to an air pressure increase instruction in the driving signal change instruction;
and controlling the driving module to reduce the air pressure output value according to the air pressure reduction instruction in the driving signal change instruction.
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| CN202121180940.5U CN215953788U (en) | 2021-05-28 | 2021-05-28 | Locomotive high-voltage isolating switch testing device |
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