CN213986738U - DC relay checking device - Google Patents
DC relay checking device Download PDFInfo
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- CN213986738U CN213986738U CN202022748830.6U CN202022748830U CN213986738U CN 213986738 U CN213986738 U CN 213986738U CN 202022748830 U CN202022748830 U CN 202022748830U CN 213986738 U CN213986738 U CN 213986738U
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Abstract
The disclosure belongs to the technical field of nuclear power, and particularly relates to a direct-current relay checking device. The disclosed direct-current relay checking device is provided with a plurality of interface boards, a plurality of detection channels are formed, detection parameters of a plurality of relays can be checked in a one-time full-automatic mode and can be displayed and stored through the upper display screen, huge errors in manual voltage regulation and measurement processes are avoided, the detection efficiency of the relays can be greatly improved, and unnecessary loop faults caused by relay misoperation or inactivity or poor contact of contacts are reduced through pre-judgment of the relays.
Description
Technical Field
The utility model belongs to the technical field of the nuclear power, concretely relates to direct current relay calibration equipment.
Background
In the related technology, the relay checking quantity of medium-voltage and low-voltage distribution boards in nuclear power plants is large, the checking mode still adopts a traditional relay protection tester, and the measurement is carried out through manual measurement and manual voltage regulation. This kind of mode efficiency is too low, and the wiring is loaded down with trivial details, and universal meter measuring error is great, and the deviation is bigger when especially measuring relay auxiliary contact and directly hindering, is not convenient for in time discover the ageing problem of relay. Therefore, how to accurately and efficiently detect the nuclear power plant relay becomes a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the related art, the direct current relay checking device is provided.
According to an aspect of the embodiments of the present disclosure, there is provided a dc relay checking apparatus, including: the system comprises a main control board, a plurality of interface boards, a display screen and a battery;
each interface board is respectively connected with the main control board and is used for connecting a relay to be tested, and the types of the relays to be tested connected with the interface boards are completely the same, partially the same or different;
under the condition that the interface board is connected with the relay to be tested, the main control board is used for driving the relay to be tested connected with the interface board to act through the interface board and acquiring the detection parameters of the relay to be tested connected with the interface board through the interface board;
the display screen is connected with the main control board and used for displaying the detection parameters of the relay to be detected, which are acquired by the main control board;
the battery is connected with the main control board and used for supplying power to the direct current relay checking device.
In a possible implementation manner, the detection parameters of the relay to be detected acquired by the main control board include any one or more of an action voltage, a return voltage, a coil direct resistance value, a normally closed contact resistance or a contact resistance after a normally open contact is closed of the relay to be detected.
In a possible implementation manner, under the condition that the main control board processes the detection parameters of the relay to be detected and sends an alarm instruction to the display screen, the display screen displays the alarm information indicated by the alarm instruction.
In one possible implementation manner, the dc relay calibration apparatus further includes: an alarm;
the alarm is connected with the main control board, and the alarm executes an alarm action under the condition that the main control board processes the detection parameters of the relay to be detected and sends an alarm instruction to the alarm.
In one possible implementation, the alert action includes sounding and/or vibrating.
In one possible implementation manner, the dc relay calibration apparatus further includes: a plurality of overcurrent protection circuits;
each overcurrent protection circuit is connected with one interface board and is used for carrying out overcurrent protection on the connected interface board.
In one possible implementation manner, the dc relay calibration apparatus further includes: a low voltage protection circuit;
the low-voltage protection circuit is connected with the battery and used for performing low-voltage protection on the battery.
In one possible implementation manner, the dc relay calibration apparatus further includes: a memory card;
the storage card is connected with the display screen and used for acquiring and storing the detection data of the relay to be detected, which are received by the display screen.
In one possible implementation manner, the battery is a rechargeable battery, and the dc relay calibration apparatus further includes: a power adapter;
the power adapter is connected with the battery, and the power adapter is used for charging the battery or supplying power to the direct current relay checking device under the condition of being connected with a power supply.
In one possible implementation, each interface board includes a test circuit and a relay base;
the testing circuit of each interface board is connected with the main control board, the relay base of each interface board is used for being connected with the relay to be tested, and the relay base of each interface board is detachably connected to the testing circuit of the interface board.
The beneficial effect of this disclosure lies in: the disclosed direct-current relay checking device is provided with a plurality of interface boards, a plurality of detection channels are formed, detection parameters of a plurality of relays can be checked in a one-time full-automatic mode and can be displayed and stored through the upper display screen, huge errors in manual voltage regulation and measurement processes are avoided, the detection efficiency of the relays can be greatly improved, and unnecessary loop faults caused by relay misoperation or inactivity or poor contact of contacts are reduced through pre-judgment of the relays.
Drawings
Fig. 1 is a block diagram illustrating a dc relay verification apparatus according to an exemplary embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a block diagram illustrating a dc relay verification apparatus according to an exemplary embodiment. As shown in fig. 1, the dc relay calibration apparatus may include: the system comprises a main control board, a plurality of interface boards, a display screen and a battery;
each interface board is connected with the main control board, each interface board can be used for connecting a relay to be tested, the types of the relays to be tested connected with each interface board are completely the same, and parts of the relays to be tested are the same or different from each other, for example, the direct current relay calibration device can comprise 12 interface boards, wherein 4 interface boards can be four pairs of points and used for connecting the relays with four contacts, 5 interface boards can be two pairs of points and used for connecting the relays with two contacts, and 3 interface boards can be three pairs of points and used for connecting the relays with three contacts.
In one possible implementation manner, each interface board may include a test circuit and a relay base, the test circuit of each interface board may be connected with the main control board, and the relay base of each interface board is used for being connected with the relay to be tested. The relay base of each interface board is detachably connected with the test circuit of the interface board, and when the relay base has aging phenomena such as reduced clamping force after being plugged and unplugged for multiple times, the aged relay base can be disassembled and replaced without replacing the whole machine, so that the cost is saved.
When the relay needs to be checked, a relay to be tested can be inserted on an interface board, the main control board can automatically identify the interface board connected with the relay, and the main control board can drive the relay to be tested connected with the interface board to act through the interface board under the condition that the interface board is connected with the relay to be tested, and acquire the detection parameters of the relay to be tested connected with the interface board through the interface board.
The main control board identifies the interface board inserted into the relay when detecting that the verification mode is the drawer mode, and displays an interactive interface through the display screen, wherein the interactive interface comprises a serial number input window of the drawer and a serial number input window corresponding to the identified interface board, the main control board acquires detection parameters of the relay to be detected connected with the plurality of boards after recording the input serial number in the serial number input window, and displays a detection result through the display screen, and the detection result comprises the recorded drawer serial number, the serial number of each interface board and the detection parameters of each interface board.
The display screen is connected with the main control board and is used for displaying the detection parameters of the relay to be detected, which are acquired by the main control board; for example, the display screen may be a commercial capacitive touch serial port screen with a resolution of 1024 × 600, so as to reduce the burden of display data exchange between the main control board and the display screen and improve sampling accuracy and speed, and the display screen may be, for example, a 16-bit true color RGB display, a built-in standard 8 × 16, 12 × 24, 16 × 32, 32 × 64ASCII font library, supports downloading of picture formats such as BMP, JPEG, WMF, PNG, and GIF, and has various configuration controls such as a button control, a text control, a pull-down control, a progress bar control, and the like. In the display process, a user does not need to pay attention to and participate in a display framework, the unique Cortex-M3+ FPGA dual-core framework of the serial port screen can easily analyze an instruction set sent by the user and display and switch the instruction set, and the display and the touch are more accurate and faster.
The battery is connected with the main control board and used for supplying power to the direct current relay calibration device. For example, the battery may be a polymer lithium battery pack having a capacity of 10Ah each. The battery pack has the advantages of small internal resistance, large capacity, multiple cycle times, no memory effect, explosion prevention and the like. The battery pack adopts an intelligent IC protection circuit, can prevent overcharge, overdischarge, overcurrent and short circuit of the battery, protects the battery from swelling, and is more durable and long in service life. It should be noted that the present disclosure does not limit the type of the battery.
In a possible implementation manner, the battery is a rechargeable battery, and the dc relay calibration apparatus may further include: a power adapter; the power adapter is connected with the battery, and the power adapter is used for charging the battery or supplying power for the direct current relay checking device under the condition of being connected with the power supply. For example, the input voltage of the power adapter is: alternating current AC100-240V 50/60HZ, output voltage: DC18V, output current: 5A, voltage precision: +/-5% (no-load), the plug style of the power adapter can be pushed and pulled to form a self-locking aviation plug. It should be noted that the present disclosure does not limit the type of the power adapter.
In a possible implementation manner, the dc relay calibration apparatus may further include: a memory card; the storage card can be connected with the display screen, and the storage card is used for acquiring and storing detection data of the relay to be detected, which are received by the display screen. The memory card may be, for example, a Micro SD card, and it should be noted that the disclosure does not limit the type of the memory card.
In a possible implementation manner, under the condition that the main control board processes the detection parameters of the relay to be detected and sends an alarm instruction to the display screen, the display screen displays alarm information indicated by the alarm instruction. For example, a preset threshold of the detection parameter may be set, the main control board may determine whether the obtained detection parameter value exceeds the preset threshold of the detection parameter after obtaining the detection parameter, and if the main control board determines that the obtained detection parameter value exceeds the preset threshold, send an alarm instruction to the display screen, and the display screen may display the received alarm instruction and display alarm information indicated by the alarm instruction, where the alarm information may include a model of the relay to be detected, a type of the detection parameter of the relay to be detected exceeding the preset threshold, and the like. Therefore, the relay which causes problems can be reminded to check personnel in time.
In a possible implementation manner, the dc relay calibration apparatus may further include: an alarm; the alarm can be connected with the main control board, and the alarm executes an alarm action under the condition that the main control board processes the detection parameters of the relay to be detected and sends an alarm instruction to the alarm. For example, the alert action may include sounding and/or vibrating. Therefore, the relay which causes problems can be further reminded to check personnel in time.
In one possible implementation manner, the dc relay calibration apparatus further includes: an overcurrent protection circuit; the overcurrent protection circuit is connected with the plurality of interface boards and is used for carrying out overcurrent protection on the connected interface boards. The embodiment of the present disclosure does not limit the type of the overcurrent protection circuit.
In one possible implementation manner, the dc relay calibration apparatus further includes: a low voltage protection circuit; the low-voltage protection circuit is connected with the battery and used for performing low-voltage protection on the battery. Preventing damage to the battery from excessive current.
The disclosed direct-current relay checking device is provided with a plurality of interface boards, a plurality of detection channels are formed, detection parameters of a plurality of relays can be checked in a one-time full-automatic mode and can be displayed and stored through the upper display screen, huge errors in manual voltage regulation and measurement processes are avoided, the detection efficiency of the relays can be greatly improved, and unnecessary loop faults caused by relay misoperation or inactivity or poor contact of contacts are reduced through pre-judgment of the relays.
Application example
The user can press the power-on/power-off button in the power-off state of the direct-current relay calibration device, the direct-current relay calibration device is automatically started, the red light of the power indicator lamp is lightened, and the display screen displays a loading animation interface. And displaying the main interface after the loading interface is displayed. The main interface can contain virtual controls such as a drawer mode, a spare part mode, a check record and a standard setting.
When a user needs to check the intermediate relay in one drawer at one time, the user can click the virtual control of the drawer mode, the direct current relay checking device enters the drawer mode, the user can connect a plurality of relays to be tested in the drawer to the relay bases of the interface boards one by one, the main control board can automatically identify the interface boards inserted into the relays in the drawer mode, and an interactive interface is displayed through the display screen, the interactive interface comprises a number input window of the drawer, and a number input window corresponding to the identified interface board, the main control board obtains the detection parameters of the relay to be detected connected with each interface board after recording the number input in the number input window, and displaying the detection result through a display screen, wherein the detection result can comprise the recorded drawer number, the number of each interface board and the detection parameters of each interface board.
For example, when the user checks the relay in the drawer with the drawer position number of 3LKF151JA, the relay with the number of K211 may be inserted into the interface board with the number of 1, the relay with the number of K212 may be inserted into the interface board with the number of 10, the main control board may automatically identify that the interface boards connected to the relay are the interface board with the number of 1 and the interface board with the number of 10, respectively, and may display an interactive interface, where the interactive interface includes a number input window of the drawer and a number input window corresponding to the identified interface board, the user may input the number of the drawer in the number input window of the drawer, and input the number of the relay in the number input window corresponding to each interface board, and after the input is completed, may click a virtual control in the interactive interface for indicating that the input is completed and the checking is started, and a detection result that the main control board finally outputs to the display screen may include detection parameters corresponding to 3LKF151JA and K211, and the detection parameter corresponding to K212.
Therefore, the type of the relay to be tested, the drawer where the relay to be tested is located and the detection parameters of the relay to be tested correspond to each other conveniently on the check site according to the needs of users, and the state of each drawer and each serial number relay in each drawer can be acquired accurately by detection personnel.
When a user checks a standby relay and does not need to consider the drawer position number and the relay number, after each interface board is inserted into the relay to be tested, the user can click a 'standby mode' button, the main control board automatically identifies that the relay is inserted, the condition that the interface board is inserted into the relay is displayed on the display screen, the interface board of the inserted relay displays 'check mark', and the interface board which is not inserted into the relay displays gray 'minus'.
The user can click a virtual control used for indicating the start of verification in the interactive interface, the main control board automatically identifies the inserted relay channel, automatically analyzes the voltage grade and the number of contacts of the inserted relay, fully automatically measures the coil resistance, the normally closed point resistance, the action voltage value, the normally open point resistance and the return voltage value (examples of detection parameters) of the inserted relay, and inputs the detection parameters corresponding to each interface board after the measurement is completed.
The user can click a virtual control of a history record of a main interface, a main page jumps to a test data group overview interface, the data overview interface can contain multiple lines of data, each line of data corresponds to a group of detection parameters of 12 channels (examples of interface boards) tested at the same time, no relay is displayed as "-", the relay channel which is tested to be qualified displays "qualified", and the channel which is not tested to be qualified displays "unqualified".
The user can check, delete or export the data of the data overview interface, and the detection result displayed by the data overview interface can be exported to the memory card after the export operation is executed.
After a user selects certain row of data of the data overview interface, the user can click a virtual control for executing a viewing function, and then the display screen can display a detailed data page. On the detailed data page, the drawer number, the channel number and the relay number attribute corresponding to the relay of each channel, the coil direct resistance, the action value, the return value, the resistance of each NC normally closed point, the resistance after each NO normally open point is closed, the test result and the verification date and time can be clearly seen.
After clicking the "standard setting" virtual control, the user can set: and (3) an unqualified threshold value of the resistance value of the NC/NO contact, for example, 5000 milliohms is defaulted, when the main control board judges that the resistance value of any contact of the obtained NC/NO contact exceeds the unqualified threshold value, the resistance value of the NC/NO contact can be judged to be unqualified, and the display screen can display that the resistance value of the NC/NO contact of the relay to be tested is unqualified. Further, the user may set an operation voltage fail threshold, a return voltage fail threshold, and the like. Therefore, whether the sampling circuit inside the instrument is abnormal or not can be judged according to the requirements of the user through comparison of the display and the standard set by the user.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A DC relay calibration apparatus, characterized in that, the DC relay calibration apparatus includes: the system comprises a main control board, a plurality of interface boards, a display screen and a battery;
each interface board is respectively connected with the main control board and is used for connecting a relay to be tested, and the types of the relays to be tested connected with the interface boards are completely the same, partially the same or different;
under the condition that the interface board is connected with the relay to be tested, the main control board is used for driving the relay to be tested connected with the interface board to act through the interface board and acquiring the detection parameters of the relay to be tested connected with the interface board through the interface board;
the display screen is connected with the main control board and used for displaying the detection parameters of the relay to be detected, which are acquired by the main control board;
the battery is connected with the main control board and used for supplying power to the direct current relay checking device.
2. The direct-current relay calibration device according to claim 1, wherein the detection parameters of the relay to be tested acquired by the main control board include any one or more of an action voltage, a return voltage, a coil direct resistance value, a normally closed contact resistance or a contact resistance after a normally open contact is closed of the relay to be tested.
3. The direct-current relay calibration device according to claim 1, wherein the display screen displays alarm information indicated by an alarm instruction when the main control board processes detection parameters of the relay to be tested and sends the alarm instruction to the display screen.
4. The dc relay calibration apparatus of claim 1, further comprising: an alarm;
the alarm is connected with the main control board, and the alarm executes an alarm action under the condition that the main control board processes the detection parameters of the relay to be detected and sends an alarm instruction to the alarm.
5. The dc relay calibration device of claim 4, wherein the alarm action comprises sounding and/or vibrating.
6. The dc relay calibration apparatus of claim 1, further comprising: an overcurrent protection circuit;
the overcurrent protection circuit is connected with the plurality of interface boards and is used for carrying out overcurrent protection on the connected interface boards.
7. The dc relay calibration apparatus of claim 1, further comprising: a low voltage protection circuit;
the low-voltage protection circuit is connected with the battery and used for performing low-voltage protection on the battery.
8. The dc relay calibration apparatus of claim 1, further comprising: a memory card;
the storage card is connected with the display screen and used for acquiring and storing the detection data of the relay to be detected, which are received by the display screen.
9. The dc relay calibration device of claim 1, wherein the battery is a rechargeable battery, the dc relay calibration device further comprising: a power adapter;
the power adapter is connected with the battery, and the power adapter is used for charging the battery or supplying power to the direct current relay checking device under the condition of being connected with a power supply.
10. The dc relay calibration device of claim 1, wherein each interface board comprises a test circuit and a relay base;
the testing circuit of each interface board is connected with the main control board, the relay base of each interface board is used for being connected with the relay to be tested, and the relay base of each interface board is detachably connected to the testing circuit of the interface board.
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| CN202022748830.6U CN213986738U (en) | 2020-11-24 | 2020-11-24 | DC relay checking device |
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| CN202022748830.6U CN213986738U (en) | 2020-11-24 | 2020-11-24 | DC relay checking device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113407474A (en) * | 2021-08-19 | 2021-09-17 | 美核电气（济南）股份有限公司 | Multi-channel nuclear power equipment contact scanning device and working method thereof |
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2020
- 2020-11-24 CN CN202022748830.6U patent/CN213986738U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113407474A (en) * | 2021-08-19 | 2021-09-17 | 美核电气（济南）股份有限公司 | Multi-channel nuclear power equipment contact scanning device and working method thereof |
| CN113407474B (en) * | 2021-08-19 | 2021-11-23 | 美核电气（济南）股份有限公司 | Multi-channel nuclear power equipment contact scanning device and working method thereof |
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