CN212229088U - Surge protector detector - Google Patents
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- CN212229088U CN212229088U CN202020832406.7U CN202020832406U CN212229088U CN 212229088 U CN212229088 U CN 212229088U CN 202020832406 U CN202020832406 U CN 202020832406U CN 212229088 U CN212229088 U CN 212229088U
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Abstract
The invention discloses a surge protector detector, which comprises: the test module, the data acquisition board, the data conversion card, the PLC controller, the operation panel and the power module are in circuit connection; according to the detection method, a PLC controller control flow is adopted, a high-precision conversion acquisition card is used, leakage current and a loop resistance value are converted into standard analog signals, the standard analog signals are input into the PLC controller again to be calculated and compared, the advantages and the disadvantages of the surge protector are judged according to a signal lamp of an operation panel, the whole detection flow is full-automatic, interaction and result feedback are carried out through a control panel, the use is convenient, the effect is visual and obvious, and the applicability is strong.
Description
Technical Field
The invention relates to the field of electrical equipment, in particular to a surge protector detector.
Background
A surge protector, also called a lightning protector, is an electronic device for providing safety protection for various electronic equipment, instruments and meters and communication lines. When the peak current or voltage is suddenly generated in an electric loop or a communication line due to external interference, the surge protector can conduct and shunt in a very short time, so that the damage of the surge to other equipment in the loop is avoided; the surge protector is a protection device which mainly inhibits lightning surge and transient overvoltage and is widely applied to industrial control systems. However, with the long-term lightning surge current, the surge protector can be degraded or even damaged, the induced surge and transient voltage can destroy sensitive control and measurement instruments or reduce the precision of the control and measurement instruments, if the induced surge and transient voltage are not timely replaced, the stable operation of a control system can be influenced, and huge property loss is caused to a factory.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a detector for the surge protector, which can accurately acquire various performance parameters of the surge protector and judge whether the surge protector is degraded, and is safe to use and high in applicability.
In order to solve the technical problems, the technical solution of the invention is as follows:
a surge protector detector, comprising:
a test module: the test module is used for connecting the surge protector, a test socket is arranged on the test module, and the test socket is connected with the surge protector through a test connecting line circuit;
a data acquisition board: the data acquisition board is used for acquiring leakage current and loop resistance of the surge protector and converting the measured leakage current and the measured resistance value of the loop resistance into analog quantity voltage signals;
data conversion card: the data conversion card is used for converting the analog quantity voltage signal acquired by the data acquisition board into a standard current signal and outputting the standard current signal to the PLC;
a PLC controller: the PLC is used for controlling and executing a detection process, collecting detection data, performing operation comparison on the detection data and set data, and outputting a comparison result;
an operation panel: and the operation panel is provided with an adjusting knob and an indicator light for setting parameters and outputting results in an interactive way with a user.
A power supply module: the power supply module is used for supplying power to the surge protector detector;
the test module, the data acquisition board, the data conversion card, the PLC, the operation panel circuit and the power module are in circuit connection.
Further, the data acquisition board is composed of a data acquisition circuit, and the data acquisition circuit includes: wiring end module, detection circuitry module and control circuit module, wiring end module, detection circuitry module and control circuit module circuit connection, wiring end module constitute by a plurality of binding post, detection circuitry module constitute by a plurality of detection circuitry, detection circuitry form by relay, rectifier diode, zener diode and resistance circuit connection, control circuit module constitute by a plurality of control circuit, control circuit constitute by the relay.
Further, the terminal module is composed of seventeen terminals, which are terminals J1-J17, and the terminals J1-J17 include: the device comprises test voltage terminals J1-J2, working voltage terminals J3-J6, surge protector test line terminals J7-J11 and drive control signal terminals J12-J14; and the analog quantity signal terminals J15-J17 are output, the detection circuit module consists of four detection circuits, and the control circuit module consists of seven control circuits.
Further, eleven relays are provided, namely the relays K1-K11, the relays K1-K4 are arranged on four detection circuits, the relays K5-K11 are arranged on seven control circuits, nine rectifier diodes are provided, namely the rectifier diodes D2, the rectifier diodes D3, the rectifier diodes D5, the rectifier diodes D6, the rectifier diodes D8, the rectifier diodes D9, the rectifier diodes D11, the rectifier diodes D12 and the rectifier diodes D13, four zener diodes are provided, namely the zener diode D1, the zener diode D4, the zener diode D7 and the zener diode D10, and nine resistors are provided, namely the resistors R1-R9.
Further, the standard current signal is a 4-20mA current signal.
Further, the test socket is arranged on the operation panel.
Further, the adjusting knob comprises a mode selecting knob, a starting button, a stopping button, a voltage selecting knob, a leakage current selecting knob and a resistance selecting knob.
Furthermore, the PLC controller comprises an analog input module and a CPU module.
Furthermore, the power supply module comprises a switch power supply module and a test power supply module.
The invention has the beneficial effects that:
1. the invention connects the surge protector through the test module, utilize the data acquisition board to gather the leakage current and loop resistance of the surge protector, then output through the data conversion card, utilize PLC controller control to carry out the detection procedure finally, output the comparative result, display the testing result through the pilot lamp of the operating panel, the invention can gather various performance parameters of the surge protector accurately, judge whether the surge protector is degraded, make users find in time when the surge protector is degraded, change in time, use safe and reliable, and the detection step is simple, the testing result can be reflected directly, easy to use;
2. the surge protector detection device has the advantages that the adjusting knob is arranged through the operation panel, the mode selecting knob is used for selecting the surge protectors to be used in parallel or in series, different set parameters are selected by the voltage selecting knob, the leakage current selecting knob and the resistance selecting knob to realize different performance parameter detection, standard universal control signals are used for being integrated with various controllers, data acquisition and detection of the surge protectors of different models can be realized, and the surge protector detection device is high in applicability;
3. according to the invention, the leakage current value is acquired and output by the data acquisition board and then converted into an analog quantity voltage signal, and then the analog quantity voltage signal is converted into a standard current signal by the data conversion card, so that the current signal output precision is high and the output is stable by the standard current signal;
4. the whole surge protector detector can be arranged in the suitcase through a portable design, so that the portable surge protector detector is convenient to carry and flexible to operate;
drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a schematic view of an operation panel according to the present invention;
FIG. 4 is a circuit diagram of the data acquisition board of the present invention;
FIG. 5 is a flow chart of the use of the present invention;
1-a test module; 9-a surge protector; 11-a test socket; 2-a data acquisition board; 3-data conversion card; 4-a PLC controller; 41-analog input module; 42-a CPU module; 5-an operation panel; 6-a power supply module; 61-a switching power supply module; 62-testing the power supply module; 21-a termination module; 22-detection circuit module; 23-a control circuit module;
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. It should be noted that the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In order to solve the unable various performance parameters of gathering of current surge protector detecting instrument, can't judge whether the surge protector 9 degrades, the poor problem of suitability, this application discloses a surge protector detector, as figure 1, figure 2 shows, includes:
the test module 1: the testing module 1 is used for connecting the surge protector 9, a testing socket 11 is arranged on the testing module 1, and the testing socket 11 is connected with the surge protector 9 through a testing connecting line circuit; preferably, the test socket 11 is disposed on the operation panel 5. The test module 1 is a pivot for connecting the surge protector 9 and the data acquisition board 2, the surge protector 9 is connected with a test socket 11 on the operation panel 5 through test connection, and the test module 1 is in circuit connection with the data acquisition board 2.
Data acquisition board 2: the data acquisition board 2 is used for acquiring leakage current and loop resistance of the surge protector 9 and converting the measured leakage current and the resistance value of the loop resistance into analog quantity voltage signals.
Data conversion card 3: the data conversion card 3 is used for converting the analog quantity voltage signal acquired by the data acquisition board 2 into a standard current signal and outputting the standard current signal to the PLC 4; preferably, the standard current signal is a 4-20mA current signal, and is output to the PLC 4 through the 4-20mA current signal, so that the comparison of the PLC 4 is facilitated, and the measurement accuracy is high due to the fact that the standard current signal is used. The data conversion card 3 of the present application uses a common conversion circuit, for example, a common isolation converter, which can convert an analog voltage into a standard current.
The PLC controller 4: the PLC 4 is used for controlling and executing a detection process, collecting detection data, performing operation comparison on the detection data and set data, and outputting a comparison result; preferably, the PLC controller 4 includes an analog input module 41 and a CPU module 42; the analog input module 41 is used for inputting a standard current signal and a loop resistor into the whole PLC controller 4, and the CPU module 42 is used for comparing the input standard current signal with a set value to determine whether the surge protector 9 is qualified.
Operation panel 5: and the operation panel 5 is provided with an adjusting knob and an indicator light for setting parameters and outputting results in an interactive way with a user. Preferably, as shown in fig. 3, the adjustment knobs include a mode selection knob, a start button, a stop button, a voltage selection knob, a leakage current selection knob, and a resistance selection knob. The mode selection knob is used for selecting the use mode of the surge protector 9, the general surge protector 9 has two use modes, namely serial use and parallel use, and the mode selection knob is used for switching and selecting the corresponding mode to realize detection of different types of surge protectors 9. The start button and the stop button are used for starting and stopping the working state of the whole detector of the surge protector 9, and the voltage selection knob, the leakage current selection knob and the resistance selection knob are used for respectively defining a voltage set value, a leakage current set value and a resistance set value to be used as comparison between a standard current signal input by the PLC 4 and loop resistance. Thereby determining whether the surge protector 9 is up to standard. The voltage selection knob, the leakage current selection knob and the resistance selection knob are all provided with four gears, and four gears can be adjusted. The leakage current set by the leakage current selection knob, the line-ground leakage current inputted to the PLC controller 4 by the analog input module 41, and the comparison target of the line-line leakage current.
The power supply module 6: the power supply module 6 is used for supplying power to the detector of the surge protector 9; preferably, the power module 6 includes a switching power module 61 and a testing power module 62. Switching power supply module 61's effect is for whole surge protector 9 detector provides working power supply, this switching power supply module 61 can stably provide fixed voltage, this voltage is provided by outside electrical equipment, and test power supply module 62's effect is the operating condition who provides different test voltage and simulate various types surge protector 9, detect different types surge protector 9 leakage current and loop resistance under different voltages, test power supply module 62 has two, test power supply module one and test power supply module two respectively, two can provide different voltages respectively and realize corresponding test voltage input function. In general, the voltage of the first test power supply module 62 and the second test power supply module 62 of the function is 36V, and the voltage of the switching power supply module 61 is 24V.
The test module 1, the data acquisition board 2, the data conversion card 3, the PLC controller 4, the operation panel 5 and the power module 6 are in circuit connection.
Preferably, as shown in fig. 4, the data acquisition board 2 is composed of a data acquisition circuit, and the data acquisition circuit includes:
the terminal module 21, detection circuit module 22 and control circuit module 23, terminal module 21, detection circuit module 22 and control circuit module 23 circuit connection, terminal module 21 constitute by a plurality of binding post, preferably, terminal module 21 constitute by seventeen binding post, be binding post J1-J17 respectively. The connection terminals J1-J17 are different connection terminals, and preferably, the connection terminals J1-J17 comprise: the test voltage terminal J1-J2, the working voltage terminal J3-J6, the test line terminal J7-J11 connected with the surge protector 9 and the drive control signal terminal J12-J14; and output analog quantity signal terminals J15-J17. Specifically, referring to fig. 1, the data acquisition board 2 is connected to each of the other components in a manner that the test voltage terminals J1-J2 are respectively connected to the test power supply module ii and the test power supply module i, wherein the test power supply module ii and the test power supply module i respectively provide 36V and 36V test voltages, so that the whole surge protector 9 is powered on. The operating voltage terminals J3-J6 are connected to the switching power supply module 61, and the voltage of the switching power supply module 61 is generally set to 24V when in use. The specific connection mode for connecting the surge protector 9 test line terminals J7-J11 is as follows: j7 is connected with the ground wire, J8 and J9 are connected with the input end of the surge protector 9, J10 and J11 are connected with the output end of the surge protector 9, and the circuit connection of the surge protector 9 and the data acquisition circuit is completed. Corresponding to fig. 1, that is, the connection between the test line terminals J7-J11 of the surge protector 9 and the corresponding port of the test module 1 is realized, that is, in the test socket 11 in the test module 1, a2 and B2 are output terminals of the surge protector 9, and a1 and B1 are input terminals of the surge protector 9, so that the connection of the surge protector 9 is completed. The drive control signal terminals J12-J14 are connected with the PLC 4 to realize the control output of data; the output analog signal terminals J15-J17 are connected with the data conversion card 3 to realize the conversion of output signals. And completing the connection of the data acquisition card and each component.
The detection circuit module 22 is composed of a plurality of detection circuits, each detection circuit is formed by connecting a relay, a rectifier diode, a voltage regulator diode and a resistor circuit, and preferably, the detection circuit module 22 is composed of four detection circuits. Preferably, eleven relays are provided, namely the relays K1-K11, and the relays K1-K4 are arranged on four detection circuits; preferably, there are nine rectifier diodes, which are rectifier diode D2, rectifier diode D3, rectifier diode D5, rectifier diode D6, rectifier diode D8, rectifier diode D9, rectifier diode D11, rectifier diode D12 and rectifier diode D13; preferably, there are four zener diodes, which are zener diode D1, zener diode D4, zener diode D7 and zener diode D10; preferably, the number of the resistors is nine, and the resistors are respectively R1-R9. The resistances of the resistors R1-R9 are preferably 3K, 75K, 2.2K, 68K, 10K, 56K, 27K, 24K and 56K, respectively. The four detection circuits are identical except that specific resistance values of the resistors are different, namely, the circuit connection, the voltage stabilizing diode and the rectifying diode are identical. For example, the first detection circuit is formed by connecting a rectifier diode D3 and a resistor R3 in series, then connecting the rectifier diode D1 in parallel, and then connecting the rectifier diode D2 and a resistor R2 in series to realize circuit connection, and the other three detection circuits are the same and only have different resistance values. Different voltage grades are realized by different resistance values, so that the working states of various types of surge protectors 9 are simulated, and the applicability is improved. The control circuit module 233 is composed of a plurality of control circuits, and the control circuits are composed of relays.
Preferably, the control circuit module 23 is composed of seven control circuits. The seven control circuits are provided with relays K5-K11. Different wiring ports are arranged on different wiring terminals on the wiring terminal module 211, and correspond to different wiring terminals on the detection circuit module 22 and the control circuit module 23, for example, T1-T4 on a test line terminal J7-J11 connected with the surge protector 9 corresponds to T1-T4 on the control circuit module 233, and Q0.0 on a driving control signal terminal J12-J14 corresponds to Q0.0 on the detection circuit module 222 and the control circuit module 233. Different wiring terminal connections can realize the collection of different data. The specific performance parameter acquisition steps are as follows:
firstly, the acquisition circuit corresponding to the present application is connected to the surge protector 9, and the specific connection mode is that the terminal J7-J11 of the test line connected to the surge protector 9 is utilized: the terminal J7 is connected with the ground wire, the terminals J8 and J9 are connected with the input end of the surge protector 9, and the terminals J10 and J11 are connected with the output end of the surge protector 9. Then, the working voltage is given to the surge protector 9, the ports 1-4 of the connecting terminal J12 are specifically switched on, the corresponding relays K1-K4 are switched on, and the connecting terminals J8 and J9 can be activated to output the working voltages of 7V, 16V, 32V and 55V to the surge protector 9, so that the working states of various types of surge protectors 9 can be simulated. Then, the detection of different performance parameters is carried out. The output of 7V, 16V, 32V and 55V is realized based on different resistor configurations of ports No. 1-4 of the connecting terminal J12, and since the voltage of the switching power supply module 61 is set to be 24V, the total voltage of the test power supply module is 72V, and the final connecting terminals J8 and J9 output 7V, 16V, 32V and 55V working voltages to the surge protector 9 through different resistors of ports No. 1-4 of the connecting terminal J12. When the loop resistance value of the surge protector 9 needs to be detected, the port 4 of the connecting terminal J13 and the port 2 of the connecting terminal J14 are connected, the corresponding relays K8 and K10 are connected, and the resistance value signal of the surge protector 9 is output through J16, so that the resistance detection is realized.
When line-ground leakage current needs to be measured: the ports 2 and 3 of the connecting terminal J13 are connected, the corresponding relay K6\ K7 is connected, and the connecting terminal J17 can be activated to output 0-10V analog quantity signals. When the port 1 of the J13 is connected, the connection terminal J15 can be activated to output a 0-70mV analog quantity signal.
When line-to-line leakage current needs to be measured: when the ports 2 and 3 of the connecting terminal J13 and the port 1 of the J14 are connected, the corresponding relay K6\ K7\ K9 is connected, and the connecting terminal J17 can be activated to output 0-10V analog quantity signals. When the port 1 of the connection terminal J13 is connected, the connection terminal J15 can be activated to output a 0-70mV analog quantity signal.
The connection of the wiring terminal can be controlled by the PLC controller 4, and the PLC controller 4 automatically controls the connection of the wiring terminal according to different detection requirements. That is, when detecting the line-line leakage current and the line-ground leakage current, the PLC controller 4 can automatically control the connection and disconnection of the connection terminal to detect different data, thereby realizing the detection of the surge protector.
The control circuit is switched by connecting the drive control signal terminals J12-J14, detection of different performances is achieved, the surge protector 9 is connected with the test line terminals J7-J11 to be connected with the surge protector 9, the test voltage terminals J1-J2 and the working voltage terminals J3-J6 are used as a working power supply, and the analog quantity signal output terminals J15-J17 are used as analog signals and performance parameter data output of detection. Namely, the whole circuit provides working power supply through the test voltage terminals J1-J2 and the working voltage terminals J3-J6, the two voltages are different, the power supply can not be directly connected to the surge protector 9, and the four different detection circuit modules 222 can be used for realizing that the working voltage which is finally output to the input end of the surge protector 9, namely J8 and J9, outputs 7V, 16V, 32V and 55V to the surge protector 9, so as to simulate the working states of various types of surge protectors 9. Then different ports of the wiring terminal J13 are utilized to realize the connection of different circuits of the control circuit, thereby realizing the detection of different performances, and finally, the detection results are output through the output analog quantity signal terminals J15-J17 to be monitored.
The specific use flow of the application is as shown in fig. 5:
s1: the surge protectors 9 are selected to be used in parallel or in series through a mode selection knob of the operation panel 5, and the surge protectors 9 are connected with a test socket 11 through test connecting wires;
s2: the starting button is clicked by rotating a voltage value, a leakage current value and a resistance value through a voltage selection knob, a leakage current selection knob and a resistance selection knob of the operation panel 5;
s3: the switching power supply module and the test voltage module provide power for the surge protector;
s4: the data acquisition board acquires a leakage current value and a loop resistance value, and the leakage current value and the loop resistance value are output to the data conversion card through the control circuit module as analog voltage signals;
s5: the data conversion card 3 converts the analog quantity voltage signal and the loop resistance value into a standard current signal, and outputs the standard current signal and the loop resistance value to the PLC 4;
s6: an analog quantity input module 41 of the PLC 4 collects a standard current signal;
s7: a CPU module of the PLC calculates according to the standard current signal to obtain a loop resistance signal, compares a loop resistance measured value with a resistance selection knob selection set value, performs the next step if the measured value is smaller than the set value, tests and judges that the surge protector 9 is unqualified if the measured value is not smaller than the set value, and an indicator lamp indicates red;
s8: the CPU module 42 of the PLC controller 4 compares the line-ground leakage current value with the leakage current selection knob selection setting value, and if the measured value is smaller than the setting value, proceeds to the next step, and if the measured value is not smaller than the setting value, it determines that the surge protector 9 is not qualified by the test, and the indicator light indicates red;
s9: the CPU module 42 of the PLC controller 4 compares the line-to-line leakage current value with the leakage current selection knob selection setting value, and if the measured value is smaller than the setting value, proceeds to the next step, and if the measured value is not smaller than the setting value, it determines that the surge protector 9 is not qualified by the test, and the indicator light indicates red;
s10: and judging that the surge protector 9 is qualified, indicating a green light by an indicator light, and clicking a stop button.
The red and green of the indicator light are specifically realized through the PLC 4, namely the red and green of the indicator light are controlled and realized through the comparison of the CPU module 42 of the PLC 4, the control is not single control and is only a mode convenient for intuitively embodying the quality of the surge protector 9, the prior art is used for the control, and the good and bad states of the surge protector 9 can also be embodied through various modes such as setting the indicator light to be on or not to be on. Because the resistance signal is easy to be interfered and the current signal has strong anti-interference ability, the intermediate resistance is converted into the current and then needs to be converted into the loop resistance by the PLC controller when being compared, the specific conversion mode is to do an inverse operation according to the rule of the data conversion card, the conversion technology of the data conversion card and the inverse operation technology are the prior art, and for example, an isolation converter can be used. Different conversions are implemented. The program that PLC controller that this application corresponds used all is current PLC program commonly used.
The surge protector 9 detector corresponding to the application adopts Siemens PLC as a PLC controller 4, uses a high-precision conversion acquisition card to convert leakage current and loop resistance into standard analog signals, and then inputs the standard analog signals into the PLC controller 4 for calculation and comparison. The whole detection process is full-automatic, interaction and result feedback are carried out through the control panel, the use is convenient, and the effect is visual and obvious.
The specific circuit trends of the application are as follows: firstly, after the start button is clicked, the switching power supply module 61 starts to provide current for the whole detector of the surge protector 9, the current firstly passes through the data acquisition card, and then passes through the data acquisition card, under the action of the test power supply module 62 and the switching power supply module 61, the voltage actually output to the surge protector 9 is different according to the number 1-4 port of the connecting terminal J12, so that the line-line leakage current of the surge protector 9 and the surge protector 9, the line-ground leakage current, the loop resistance and the like reach the PLC controller 4 after reaching the data conversion card 3 through the data acquisition card, and the PLC controller 4 then utilizes the CPU module 42 to realize the quality detection of the surge protector 9. The surge protector 9 deteriorates when used, and the actual standard leakage current and the loop resistance detected for the deteriorated surge protector 9 are smaller than the set values, and if they are larger than the set values, it indicates that it itself has deteriorated.
The invention connects the surge protector through the test module, utilize the data acquisition board to gather the leakage current and loop resistance of the surge protector, then output through the data conversion card, utilize PLC controller control to carry out the detection procedure finally, output the comparative result, display the testing result through the pilot lamp of the operating panel, the invention can gather various performance parameters of the surge protector accurately, judge whether the surge protector is degraded, make users find in time when the surge protector is degraded, change in time, use safe and reliable, and the detection step is simple, the testing result can be reflected directly, easy to use; the surge protector detection device is characterized in that an adjusting knob is arranged through an operation panel, a mode selection knob is used for selecting surge protectors to be used in parallel or in series, different set parameters are selected through a voltage selection knob, a leakage current selection knob and a resistance selection knob to realize different performance parameter detection, standard universal control signals are used for being integrated with various controllers, data collection and detection of the surge protectors of different models can be realized, and the surge protector detection device is high in applicability; the control is stable, and the device can be applied to severe environments and is widely applicable.
The above-mentioned embodiments are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention, so that the changes and modifications made by the claims and the specification of the present invention should fall within the scope of the present invention.
Claims (9)
1. A surge protector detector, comprising:
a test module: the test module is used for connecting the surge protector, a test socket is arranged on the test module, and the test socket is connected with the surge protector through a test connecting line circuit;
a data acquisition board: the data acquisition board is used for acquiring leakage current and loop resistance of the surge protector and converting the measured leakage current and the measured resistance value of the loop resistance into analog quantity voltage signals;
data conversion card: the data conversion card is used for converting the analog quantity voltage signal acquired by the data acquisition board into a standard current signal and outputting the standard current signal to the PLC;
a PLC controller: the PLC is used for controlling and executing a detection process, collecting detection data, performing operation comparison on the detection data and set data, and outputting a comparison result;
an operation panel: the operation panel is provided with an adjusting knob and an indicator light and is used for setting parameters and interactively outputting results with a user;
a power supply module: the power supply module is used for supplying power to the surge protector detector;
the test module, the data acquisition board, the data conversion card, the PLC, the operation panel circuit and the power module are in circuit connection.
2. The surge protector detector of claim 1, wherein: the data acquisition board comprises data acquisition circuit, data acquisition circuit include: wiring end module, detection circuitry module and control circuit module, wiring end module, detection circuitry module and control circuit module circuit connection, wiring end module constitute by a plurality of binding post, detection circuitry module constitute by a plurality of detection circuitry, detection circuitry form by relay, rectifier diode, zener diode and resistance circuit connection, control circuit module constitute by a plurality of control circuit, control circuit constitute by the relay.
3. The surge protector detector of claim 2, wherein: the terminal module comprises seventeen terminals, which are terminals J1-J17, and the terminals J1-J17 comprise: the device comprises test voltage terminals J1-J2, working voltage terminals J3-J6, surge protector test line terminals J7-J11 and drive control signal terminals J12-J14; and the analog quantity signal terminals J15-J17 are output, the detection circuit module consists of four detection circuits, and the control circuit module consists of seven control circuits.
4. The surge protector detector of claim 2, wherein: eleven relays are provided, namely the relays K1-K11, nine relays K1-K4 are arranged on four detection circuits, the relays K5-K11 are arranged on seven control circuits, nine rectifier diodes are provided, namely a rectifier diode D2, a rectifier diode D3, a rectifier diode D5, a rectifier diode D6, a rectifier diode D8, a rectifier diode D9, a rectifier diode D11, a rectifier diode D12 and a rectifier diode D13, four voltage stabilizing diodes are provided, namely a voltage stabilizing diode D1, a voltage stabilizing diode D4, a voltage stabilizing diode D7 and a voltage stabilizing diode D10, and nine resistors are provided, namely resistors R1-R9.
5. The surge protector detector of claim 1, wherein: the standard current signal is a 4-20mA current signal.
6. The surge protector detector of claim 1, wherein: the test socket is arranged on the operation panel.
7. The surge protector detector of claim 1, wherein: the adjusting knob comprises a mode selecting knob, a starting button, a stopping button, a voltage selecting knob, a leakage current selecting knob and a resistance selecting knob.
8. The surge protector detector of claim 1, wherein: the PLC controller comprises an analog input module and a CPU module.
9. The surge protector detector of claim 1, wherein: the power supply module comprises a switch power supply module and a test power supply module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020832406.7U CN212229088U (en) | 2020-05-19 | 2020-05-19 | Surge protector detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020832406.7U CN212229088U (en) | 2020-05-19 | 2020-05-19 | Surge protector detector |
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| Publication Number | Publication Date |
|---|---|
| CN212229088U true CN212229088U (en) | 2020-12-25 |
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|---|---|---|---|
| CN202020832406.7U Active CN212229088U (en) | 2020-05-19 | 2020-05-19 | Surge protector detector |
Country Status (1)
| Country | Link |
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| CN (1) | CN212229088U (en) |
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2020
- 2020-05-19 CN CN202020832406.7U patent/CN212229088U/en active Active
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