Insulation detector testing device

Abstract

The application relates to an insulation detector detection device, which comprises a power supply unit, an insulation resistance unit and an information processing unit. The power supply unit comprises a bus voltage unit for simulating bus voltage, which is used for being connected with a power supply port of the insulation detector. An alternating current voltage unit can output alternating current voltage, which is connected with a port of the insulation detector. A direct current voltage unit can output direct current voltage, which is connected with a port of the insulation detector. The information processing unit is electrically connected with the alternating current voltage unit, the direct current voltage unit and the insulation resistance unit. The information processing unit can collect and process actual output values of the alternating current voltage unit, the direct current voltage unit and the insulation resistance unit. The information processing unit is also connected with a port of the insulation detector to collect input values detected by the insulation detector. The actual output values and the input values are compared to determine whether the detection precision of the insulation detector meets a preset threshold value.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of instrument control, in particular to an insulation detection instrument detection device. BACKGROUND

[0002] In order to effectively monitor the insulation condition of the power supply system, an insulation monitor is generally installed in the electrical and instrument control system of nuclear power to realize real-time monitoring of the insulation of the power supply bus. Abnormal insulation of the power supply bus will affect the reliability of the power supply bus and the safe and stable operation of the process system. In particular, if the positive and negative poles of the power supply bus simultaneously have low insulation, it may cause the power supply bus to trip. If the power supply bus has insulation abnormalities (insulation value is lower than the required value) or grounding, the insulation monitor will automatically alarm, and insulation finding needs to be arranged as soon as possible to ensure the reliable and stable operation of the equipment. In order to effectively calibrate the accuracy of the insulation monitor, it is necessary to periodically test and check the online insulation monitor. In the prior art, when the insulation detection instrument needs to be calibrated, it needs to be returned to the factory for calibration, and the detection efficiency is low. SUMMARY

[0003] Therefore, it is necessary to provide an insulation detection instrument detection device to solve the problem of low detection efficiency of the insulation detection instrument calibration in the prior art.

[0004] An insulation detection instrument detection device, the insulation detection instrument detection device comprises a power supply unit, an insulation resistance unit and an information processing unit, the power supply unit comprises:

[0005] a bus voltage unit for simulating bus voltage, the bus voltage unit is used to connect with the power port of the insulation detection instrument;

[0006] an alternating current voltage unit capable of outputting alternating current voltage, the alternating current voltage unit is connected with the port of the insulation detection instrument;

[0007] a direct current voltage unit capable of outputting direct current voltage, the direct current voltage unit is connected with the port of the insulation detection instrument;

[0008] the information processing unit is electrically connected with the alternating current voltage unit, the direct current voltage unit and the insulation resistance unit, the information processing unit can collect the actual output value of the alternating current voltage unit, the direct current voltage unit and the insulation resistance unit, and the information processing unit is also connected with the port of the insulation detection instrument to collect the input value detected by the insulation detection instrument;

[0009] wherein, by comparing the actual output value with the input value, whether the detection precision of the insulation detection instrument meets the preset threshold value is judged.

[0010] In one embodiment, when the bus voltage unit and the AC voltage unit are connected to the insulation detector, the actual output value of the AC voltage unit is compared with the input value detected by the insulation detector to test the AC voltage accuracy or AC crosstalk alarm of the insulation detector.

[0011] In one embodiment, the live wire of the AC voltage unit is connected to the negative terminal of the insulation tester, and the neutral wire of the AC voltage unit is connected to the ground wire of the insulation tester, so as to test the accuracy of the AC voltage between the negative terminal and ground of the insulation tester.

[0012] Alternatively, the live wire of the AC voltage unit is connected to the positive terminal of the insulation tester, and the neutral wire of the AC voltage unit is connected to the ground wire of the insulation tester to test the accuracy of the AC voltage between the positive terminal and ground of the insulation tester.

[0013] Alternatively, the AC voltage unit can be connected in series with the bus voltage unit to test the AC crosstalk alarm of the insulation detector.

[0014] In one embodiment, when the bus voltage unit and the DC voltage unit are connected to the insulation detector, the actual output value of the DC voltage unit is compared with the input value detected by the insulation detector to test the DC voltage accuracy or DC crosstalk alarm of the insulation detector.

[0015] In one embodiment, the positive terminal of the DC voltage unit is connected to the positive terminal of the insulation detector, and the negative terminal of the DC voltage unit is connected to the negative terminal of the insulation detector, so as to test the accuracy of the positive and negative DC voltages of the insulation detector.

[0016] Alternatively, the positive terminal of the DC voltage unit is connected to the positive terminal of the insulation tester, and the negative terminal of the DC voltage unit is connected to the grounding wire of the insulation tester, so as to test the accuracy of the DC voltage between the negative terminal of the insulation tester and ground.

[0017] Alternatively, the positive terminal of the DC voltage unit is connected to the grounding wire of the insulation tester, and the negative terminal of the DC voltage unit is connected to the negative terminal of the insulation tester, so as to test the accuracy of the DC voltage between the positive terminal and ground of the insulation tester.

[0018] Alternatively, the DC voltage unit can be connected in series with the bus voltage unit to test the DC current leakage alarm of the insulation detector.

[0019] In one of the embodiments, the positive pole of the bus voltage unit is electrically connected with the positive pole of the insulation detector, the negative pole of the bus voltage unit is electrically connected with the negative pole of the insulation detector, and the insulation resistance unit is connected in series with the positive pole of the bus voltage unit for the alarm of the positive pole of the insulation detector being grounded.

[0020] Alternatively, the positive pole of the bus voltage unit is electrically connected with the positive pole of the insulation detector, the negative pole of the bus voltage unit is electrically connected with the negative pole of the insulation detector, and the insulation resistance unit is connected in series with the negative pole of the bus voltage unit for the alarm of the negative pole of the insulation detector being grounded.

[0021] In one of the embodiments, the insulation detector detection device further comprises a switch unit and a control unit, the switch unit is electrically connected with the control unit, the control unit is used for controlling the on-off of the switch unit, and the switch unit is electrically connected with the bus voltage unit, the alternating current voltage unit, the direct current voltage unit and the insulation resistance unit, so that the bus voltage unit, the alternating current voltage unit, the direct current voltage unit and the insulation resistance unit are connected or disconnected with the insulation detector.

[0022] In one of the embodiments, the switch unit comprises a plurality of switches, each of the switches is electrically connected with the control unit, at least one of the switches is connected with the bus voltage unit, the alternating current voltage unit, the direct current voltage unit and the insulation resistance unit respectively, and the control unit is used for controlling the on-off of the switches.

[0023] In one of the embodiments, the insulation detector detection device comprises:

[0024] A shell, the power supply unit, the insulation resistance unit and the information processing unit are integrated in the shell, the shell is provided with a navigation plug interface, and the power supply unit and the insulation resistance unit are electrically connected with the navigation plug interface.

[0025] A navigation plug connector, one end of the navigation plug connector is matched with the navigation plug interface, the other end of the navigation plug connector is matched with an interface on the insulation detector, and the insulation detector is electrically connected with the power supply unit and the insulation resistance unit through the navigation plug connector.

[0026] In one of the embodiments, the insulation detector detection device further comprises a display screen, the display screen is fixed on the shell and is electrically connected with the information processing unit and the insulation detector, and the display screen is used for displaying the information processing result of the information processing unit and the alarm result of the insulation detector.

[0027] The shell is further provided with an insulation resistance interface, a voltage interface and an interface unit, the insulation resistance interface is used for external insulation resistance, the voltage interface is used for external external series electric direct current voltage or external external series electric alternating current voltage, and the interface unit is used for external external multimeter or resistance box.

[0028] The insulation detection instrument detection device further comprises an interface unit connected with the power supply unit and the insulation resistance unit, and the interface unit is electrically connected with the interface unit.

[0029] The insulation detection instrument detection device has the following beneficial effects:

[0030] The insulation detection instrument detection device provided by the application can realize automatic detection of the detection precision of the insulation detection instrument, reduce personnel intervention, and improve work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The insulation detection instrument detection device provided by the application comprises a power supply unit, a bus voltage unit, an alternating voltage unit, a direct current voltage unit, an insulation resistance unit, an information processing unit, a control unit, an interface unit and a shell.

[0032] Figure 2 The insulation detection instrument detection device provided by the application comprises a power supply unit, a bus voltage unit, an alternating voltage unit, a direct current voltage unit, an insulation resistance unit, an information processing unit, a control unit, an interface unit and a shell.

[0033] Figure 3 The insulation detection instrument detection device provided by the application comprises a power supply unit, a bus voltage unit, an alternating voltage unit, a direct current voltage unit, an insulation resistance unit, an information processing unit, a control unit, an interface unit and a shell.

[0034] Figure 4 The insulation detection instrument detection device provided by the application comprises a power supply unit, a bus voltage unit, an alternating voltage unit, a direct current voltage unit, an insulation resistance unit, an information processing unit, a control unit, an interface unit and a shell.

[0035] The insulation detection instrument detection device 1; the power supply unit 11; the bus voltage unit 111; the alternating voltage unit 112; the direct current voltage unit 113; the insulation resistance unit 12; the information processing unit 13; the control unit 14; the interface unit 15; the shell 16; the insulation resistance interface 161; the voltage interface 162; the plug-in interface 17; the first pin 171; the second pin 172; the third pin 173; the fourth pin 174; the fifth pin 175; the ninth pin 176; the tenth pin 177; the twelfth pin 178; the display screen 18.

[0036] The insulation detection instrument 2. DETAILED DESCRIPTION

[0037] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without using these specific details. In other instances, well-known methods have not been described in detail in order to avoid obscuring the present application. Therefore, the present application is not intended to be limited by the embodiments disclosed below, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0039] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0040] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In the present application, unless otherwise explicitly specified and limited, a first feature is "on" or "under" a second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "over", "above" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is horizontally higher than the second feature. The first feature is "under", "below" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is horizontally lower than the second feature.

[0042] It should be noted that when an element is referred to as being "fixed to" or "set to" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0043] Reference Figures 1 to 4 , Figure 1 The circuit connection schematic diagram of each unit in the insulation detector detection device 1 in an embodiment of the present application is shown, and the present application provides an insulation detector detection device 1 for detecting various parameters of an insulation detector 2. The insulation detector detection device 1 comprises a power supply unit 11, an insulation resistance unit 12 and an information processing unit 13. The power supply unit 11 comprises a bus voltage unit 111, an alternating voltage unit 112 and a direct current voltage unit 113. The bus voltage unit 111 is used to simulate bus voltage, and the bus voltage unit 111 is used to be connected with a power port of the insulation detector 2 to simulate the input bus voltage when the insulation detection unit is normally working. The alternating voltage unit 112 can output alternating voltage, and the alternating voltage unit 112 is connected with a port of the insulation detector 2 to enable the insulation detector 2 to detect the voltage value on the alternating voltage unit 112. The direct current voltage unit 113 can output direct current voltage, and the direct current voltage unit 113 is connected with a port of the insulation detector 2 to enable the insulation detector 2 to detect the direct current voltage value input thereto. The information processing unit 13 is electrically connected with the alternating voltage unit 112, the direct current voltage unit 113 and the insulation resistance unit 12. The information processing unit 13 can collect and process the actual output values of the alternating voltage unit 112, the direct current voltage unit 113 and the insulation resistance unit 12. The information processing unit 13 is also connected with the port of the insulation detector 2 to collect the input values detected by the insulation detector 2. By comparing the actual output values with the input values, it can be determined whether the detection precision of the insulation detector 2 meets the preset threshold value.

[0044] This invention provides an insulation tester detection device 1. It simulates a normal power supply bus using a bus voltage unit 111. The actual output values ​​of the AC voltage unit 112, DC voltage unit 113, and insulation resistance unit 12 are compared with the benchmark detection values ​​detected by the insulation tester 2. If a certain actual output value differs from the benchmark detection value by more than a preset threshold, it indicates that the detection accuracy of the insulation tester 2 for that parameter does not meet the requirements and needs to be calibrated. This method enables automatic detection of the insulation tester 2's accuracy, reducing human intervention and improving work efficiency.

[0045] It should be noted that in this embodiment, the voltage values ​​on the DC voltage unit 113, the AC voltage unit 112, and the resistance value on the insulation resistance unit 12 are adjustable, and the output values ​​of these voltage and resistance values ​​are their actual values. The information processing unit 13 compares the actual output values ​​of the corresponding units with the values ​​detected by the insulation detector 2 to detect the AC voltage accuracy and bus voltage accuracy of the insulation detector 2, and to test the reliability of its AC crosstalk alarm, DC crosstalk alarm, and grounding alarm functions. The bus power supply unit 11 outputs a DC voltage, and the voltage value is a stable 28V. The information processing unit 13 processes the information through software, which will not be described here.

[0046] In one embodiment, see [reference] Figure 1 It is understood that the insulation tester detection device 1 also includes a switching unit and a control unit 14. The switching unit is electrically connected to the control unit 14, which controls the switching unit's on / off state. The switching unit is wiredly connected to the bus voltage unit 111, AC voltage unit 112, DC voltage unit 113, and insulation resistance unit 12, so that the bus voltage unit 111, AC voltage unit 112, DC voltage unit 113, and insulation resistance unit 12 are connected or disconnected from the insulation tester 2. By controlling the switching unit's on / off state through the control unit 14, different voltage units are connected to the insulation tester 2, thereby achieving automatic detection of different parameters of the insulation tester 2 and improving the efficiency of the insulation tester 2's accuracy detection.

[0047] Specifically, see Figure 1It should be understood that the switch unit includes a plurality of switches, each of which is connected to the control unit 14 by a wire, and the bus voltage unit 111, the AC voltage unit 112, the DC voltage unit 113 and the insulation resistance unit 12 are respectively connected to at least one switch, and the control unit 14 is used to control the on or off of the switches. For example, one-way switches are respectively connected between the bus voltage unit 111 and the positive pole of the insulation detector 2, and between the bus voltage unit 111 and the negative pole of the insulation detector 2, to realize the connection or disconnection between the positive and negative poles of the bus voltage unit 111 and the insulation detector 2. Since the DC voltage unit 113 and the AC voltage unit 112 are switchably connected to the insulation detector 2, the above two voltage units can share one line. Specifically, a line connected to the positive pole of the insulation detector 2, a line connected to the negative pole of the insulation detector 2 and a line connected to the ground line of the insulation detector 2 are provided in the detection device, and one-way switches are respectively provided on the first two lines to control the connection and disconnection of the voltage units and the positive and negative poles of the insulation detector 2. The selection switches of the AC voltage unit 112 and the DC voltage unit 113 are respectively connected to the above three lines to realize the connection of the DC voltage unit 113 to the above three lines or the connection of the AC voltage unit 112 to the above three lines. Through the above arrangement, not only the circuit can be simplified, but also the mutual connection relationship between the power supply unit 11 and the insulation detector 2 can be controlled.

[0048] In one embodiment, referring to Figure 1 It should be understood that when testing the AC voltage accuracy or AC series electric alarm of the insulation detector 2, the bus voltage unit 111 and the AC voltage unit 112 are connected to the insulation detector 2. At this time, the control unit 14 controls the switches on the AC voltage unit 112 to be connected to the ground line, the positive pole and the negative pole of the insulation detector 2. Of course, the on or off of the AC voltage unit 112 and the positive and negative poles can also be realized by controlling the corresponding switches on the positive and negative poles. By comparing the actual value of the voltage input to the insulation detector 2 with the voltage value detected by the insulation detector 2, it can be determined whether the detection accuracy of the insulation detector 2 for the AC voltage meets the requirements and whether the AC series electric alarm is reliable.

[0049] Specifically, referring to Figure 1It is understood that when the accuracy of the AC voltage between the negative pole and the ground of the insulation detector 2 needs to be tested, the live wire of the AC voltage unit 112 is connected to the negative pole of the insulation detector 2, the zero wire of the AC voltage unit 112 is connected to the ground wire of the insulation detector 2, the AC voltage unit 112 outputs AC voltage, and the size of the AC voltage can be adjusted according to the test content. At this time, the switch corresponding to the live wire of the AC voltage unit 112 and the negative pole on the insulation detector 2 is opened, and the switch corresponding to the zero wire of the AC voltage unit 112 and the ground wire is opened. In this embodiment, the leakage voltage of the AC voltage unit 112 is between 5-250V, and the accuracy requirement of the AC voltage between the negative pole and the ground of the insulation detector 2 is not greater than 5%. The actual output value of the AC voltage, denoted by U N , the voltage value of the AC voltage unit 112 detected on the insulation detector 2 is denoted by U X , and the error value between the detected value of the insulation detector 2 and the actual output value is denoted by γ, wherein the error value is obtained by the following formula:

[0050]

[0051] , U N is the actual output value of the AC voltage unit 112, and U X is the output value of the AC voltage unit 112 detected by the insulation detection unit.

[0052] If the error value γ is within 5%, it indicates that the detection accuracy of the AC voltage of the insulation detector 2 meets the requirements, and if the error value γ is greater than 5%, it indicates that the detection accuracy of the AC voltage of the insulation detector 2 does not meet the requirements and needs to be corrected.

[0053] Referring to Figure 1It should be understood that when the positive-to-ground AC voltage accuracy of the insulation detector 2 is detected, the live wire of the AC voltage unit 112 is connected to the positive pole of the insulation detector 2, that is, the switch corresponding to the live wire of the AC voltage unit 112 and the positive pole of the insulation detector 2 is opened, the zero wire of the AC voltage unit 112 is connected to the ground wire of the insulation detector 2, and the switch between the zero wire of the AC voltage unit 112 and the ground wire of the insulation detector 2 is opened. The AC voltage unit 112 outputs an AC voltage, and the size of the AC voltage can be adjusted according to the test content. At this time, the actual output value of the AC voltage is the voltage value of the positive-to-ground, and by comparing the actual output value with the voltage value of the AC voltage unit 112 displayed on the insulation detector 2, the error value between the detection value of the insulation detector 2 and the actual detection is calculated. The calculation formula of the error value is the same as formula (1) above, and will not be repeated here. If the error value is within the accuracy requirement range, it indicates that the detection accuracy of the insulation detector 2 for the positive-to-ground AC voltage meets the requirements, and if the error value exceeds the accuracy requirement range, it indicates that the detection accuracy of the insulation detector 2 for the positive-to-ground AC voltage does not meet the requirements and needs to be corrected.

[0054] Correspondingly, referring to Figure 1 It should be understood that when the AC series voltage alarm of the insulation detector 2 is tested, the AC voltage unit 112 is connected in series with the bus voltage unit 111. Among them, the zero wire of the AC voltage is connected to the negative pole of the insulation detector 2 between the bus voltage unit 111 and the negative pole of the insulation detector 2, and the live wire of the AC voltage unit 112 is connected to the negative pole of the insulation detector 2 between the bus voltage unit 111 and the negative pole of the insulation detector 2. The connection is connected to realize the series connection of the AC voltage unit 112 and the bus voltage unit 111. At this time, the voltage value input to the insulation detector 2 is the sum of the voltages of the bus voltage unit 111 and the AC voltage unit 112, indicating that a voltage source is connected in series on the bus voltage unit 111. When the insulation detector 2 detects that there is a series voltage on the bus voltage unit 111, the alarm on the insulation detector 2 is triggered, and the insulation detector 2 alarms. If the insulation detector 2 does not alarm, it indicates that the function of the AC series voltage alarm of the insulation detector 2 is abnormal and needs to be corrected.

[0055] In one embodiment, referring to Figure 1It should be understood that when the DC voltage precision or DC series alarm of the insulation detector 2 needs to be tested, the bus voltage unit 111 and the DC voltage unit 113 are connected with the insulation detector 2. That is, when the DC voltage precision or DC series alarm of the insulation detector 2 needs to be tested, the switch on the line corresponding to the positive electrode and the negative electrode of the insulation detector 2 is connected with the positive electrode of the DC voltage unit 113 through the control unit 14, and the switch on the line corresponding to the ground wire of the insulation detector 2 is connected with the negative electrode of the DC voltage unit 113. Then, whether the positive electrode of the DC voltage unit 113 is connected with the positive electrode or the negative electrode of the insulation detector 2 is realized by controlling the switches corresponding to the positive electrode and the negative electrode of the insulation detector 2. A line connected with the negative electrode of the insulation detector 2 is further arranged on the negative electrode of the AC voltage unit 112, and the switch on the line is controlled to realize the opening and closing of the line. The connection or disconnection of the corresponding line of the DC voltage unit 113 and the insulation detector 2 is realized by controlling the opening and closing of the corresponding switch, and then the insulation detector 2 is tested.

[0056] Specifically, referring to Figure 1 It should be understood that when the DC voltage precision or DC series alarm of the insulation detector 2 needs to be tested, the switch on the line corresponding to the positive electrode and the negative electrode of the insulation detector 2 is connected with the positive electrode of the DC voltage unit 113 through the control unit 14, and the switch on the line corresponding to the ground wire of the insulation detector 2 is connected with the negative electrode of the DC voltage unit 113. Then, whether the positive electrode of the DC voltage unit 113 is connected with the positive electrode or the negative electrode of the insulation detector 2 is realized by controlling the switches corresponding to the positive electrode and the negative electrode of the insulation detector 2. A line connected with the negative electrode of the insulation detector 2 is further arranged on the negative electrode of the AC voltage unit 112, and the switch on the line is controlled to realize the opening and closing of the line. The connection or disconnection of the corresponding line of the DC voltage unit 113 and the insulation detector 2 is realized by controlling the opening and closing of the corresponding switch, and then the insulation detector 2 is tested.

[0057] Referring to Figure 1It should be understood that when the positive pole-to-ground DC voltage precision of the insulation detector 2 is tested, the switch on the positive pole of the DC voltage unit 113 is connected to the line of the positive pole and the negative pole of the insulation detector 2 by the control unit 14, and the switch corresponding to the positive pole of the insulation detector 2 is opened, so that the positive pole of the DC voltage unit 113 is connected to the positive pole of the insulation detector 2, and the switch between the negative pole of the DC voltage unit 113 and the ground line of the insulation detector 2 is also opened, so that the negative pole of the DC voltage unit 113 is connected to the ground line of the insulation detector 2. By comparing the actual voltage value input to the insulation detector 2 with the voltage value detected by the insulation detector 2, it is determined whether the detection precision of the insulation detector 2 for the negative pole-to-ground DC voltage meets the requirements.

[0058] Referring to Figure 1 It should be understood that when the positive pole-to-ground DC voltage precision of the insulation detector 2 is tested, the switch on the positive pole of the DC voltage unit 113 is connected to the line of the positive pole and the negative pole of the insulation detector 2 by the control unit 14, and the switch corresponding to the positive pole of the insulation detector 2 is opened, so that the positive pole of the DC voltage unit 113 is connected to the positive pole of the insulation detector 2, and the switch between the negative pole of the DC voltage unit 113 and the ground line of the insulation detector 2 is also opened, so that the negative pole of the DC voltage unit 113 is connected to the ground line of the insulation detector 2. By comparing the actual voltage value input to the insulation detector 2 with the voltage value detected by the insulation detector 2, it is determined whether the detection precision of the insulation detector 2 for the negative pole-to-ground DC voltage meets the requirements.

[0059] Referring to Figure 1 It should be understood that when the positive pole-to-ground DC voltage precision of the insulation detector 2 is tested, the switch on the positive pole of the DC voltage unit 113 is connected to the line of the positive pole and the negative pole of the insulation detector 2 by the control unit 14, and the switch corresponding to the positive pole of the insulation detector 2 is opened, so that the positive pole of the DC voltage unit 113 is connected to the positive pole of the insulation detector 2, and the switch between the negative pole of the DC voltage unit 113 and the ground line of the insulation detector 2 is also opened, so that the negative pole of the DC voltage unit 113 is connected to the ground line of the insulation detector 2. By comparing the actual voltage value input to the insulation detector 2 with the voltage value detected by the insulation detector 2, it is determined whether the detection precision of the insulation detector 2 for the negative pole-to-ground DC voltage meets the requirements.

[0060] In one embodiment, referring to Figure 1It is understood that the positive pole of the bus voltage unit 111 is electrically connected with the positive pole of the insulation detector 2, the negative pole of the bus voltage unit 111 is electrically connected with the negative pole of the insulation detector 2, and the insulation resistance unit 12 is connected in series with the positive pole of the bus voltage unit 111 for alarming the positive pole of the insulation detector 2 grounding; or, the positive pole of the bus voltage unit 111 is electrically connected with the positive pole of the insulation detector 2, the negative pole of the bus voltage unit 111 is electrically connected with the negative pole of the insulation detector 2, and the insulation resistance unit 12 is connected in series with the negative pole of the bus voltage unit 111 for alarming the negative pole of the insulation detector 2 grounding. The adjustment range of the resistance value of the insulation resistance unit 12 is 0-999KΩ, by comparing the actual value of the resistance value of the insulation resistance unit 12 itself with the resistance value detected on the insulation detector 2, if the actual resistance value of the insulation resistance unit 12 is greater than 50KΩ, and the insulation detector 2 alarms, it is indicated that the grounding alarming function of the insulation detector 2 is reliable; if the actual resistance value of the insulation resistance unit 12 is greater than 50KΩ, and the insulation detector 2 does not alarm, it is indicated that the grounding alarming function of the insulation detector 2 is unreliable. Of course, in the embodiment, the on-off of the individual circuit is also realized by controlling the opening and closing of the switch by the control unit 14.

[0061] In one embodiment, referring to Figure 2 to 4 It is understood that the insulation detector detection device 1 comprises a shell 16 and a plug connector 17, the power supply unit 11 and the insulation resistance unit 12 are integrated in the shell 16, the shell 16 is provided with a plug interface, and the power supply unit 11 and the insulation resistance unit 12 are electrically connected to the plug interface; one end of the plug connector 17 is adapted to the plug interface, and the other end of the plug connector 17 is adapted to the interface on the insulation detector 2, and the insulation detector 2 is electrically connected to the power supply unit 11 and the insulation resistance unit 12 through the plug connector 17. The structure of the end of the plug connector 17 adapted to the plug connector 17 is shown in Figure 4 It is understood that the insulation detector detection device 1 comprises a shell 16 and a plug connector 17, the power supply unit 11 and the insulation resistance unit 12 are integrated in the shell 16, the shell 16 is provided with a plug interface, and the power supply unit 11 and the insulation resistance unit 12 are electrically connected to the plug interface; one end of the plug connector 17 is adapted to the plug interface, and the other end of the plug connector 17 is adapted to the interface on the insulation detector 2, and the insulation detector 2 is electrically connected to the power supply unit 11 and the insulation resistance unit 12 through the plug connector 17. The structure of the end of the plug connector 17 adapted to the plug connector 17 is shown in

[0062] Further, referring to Figure 2As shown, the insulation detector detection device 1 further comprises a display screen 18 fixed on the shell 16 and electrically connected with the information processing unit 13 and the insulation detector 2, the display screen 18 is used for displaying the information processing result of the information processing unit 13 and the alarm result of the insulation detector 2; the shell 16 is further provided with an insulation resistance interface 161, a voltage interface 162 and an interface unit interface, the insulation resistance interface 161 is used for external insulation resistance, the voltage interface 162 is used for external external series electric direct current voltage or external external series electric alternating current voltage, and the interface unit interface is used for external external multimeter or resistance box; the insulation detector detection device further comprises an interface unit 15 connected with the power supply unit 11 and the insulation resistance unit 12, and the interface unit 15 is electrically connected with the interface unit interface. The interface unit 15 is arranged, when internal functions are abnormal or faulty, the verification function cannot be completed through the established program, at this time, the established resistance value and voltage simulation function can be completed through the external interface, and the external interface can realize the connection of external interface devices such as resistance box, direct current voltage source and alternating current voltage source.

[0063] The information processing unit 13 is used for collecting the actual output value of the direct current voltage unit 113, the alternating current voltage unit 112 and the insulation resistance unit 12 and the detection value detected by the insulation detector 2, comparing the actual output value with the detection value and outputting the comparison result. The information processing unit 13 mainly collects the working condition of the alarm contact of the insulation detector 2, and the action condition of the alarm contact can also be directly displayed on the display screen 18. The picture sets the alarm lamp state, when the alarm is triggered, the display is red, and when the alarm is not triggered, the display is green. For example, when the detection precision of the direct current voltage exceeds the required range, the alarm is triggered.

[0064] The insulation detector detection device 1 provided by the application realizes one-key detection of all detection functions through the preset software program, including: negative pole-to-ground voltage precision test; bus voltage precision test; alternating current voltage precision test; direct current series electric alarm test; alternating current series electric alarm test; ground alarm test. For part of the parameters that need to be read by the to-be-detected insulation monitor, the insulation monitor reading value can be input into the specific function test step to realize automatic discrimination of data and automatic generation of report, and the device realizes archiving and leaving of the verification data.

[0065] The insulation detection instrument detection device 1 provided by the application acquires corresponding parameters detected by the insulation detection instrument 2 through the information processing unit 13, and compares the actual output values, so as to determine whether the detection precision of the insulation detection instrument 2 meets the standard, and generate a report. In this way, automatic judgment of detection data and automatic generation and archiving of the report are realized. The on-off of the lines between each unit in the insulation detection device and the insulation detection instrument 2 is realized through the cooperation of the control unit 14 and the switch unit, and then the reliability calibration of each parameter of the insulation detection instrument 2 and the alarm function is realized, so that the personnel intervention is reduced and the work efficiency is improved. Moreover, the insulation detection instrument detection device 1 has the advantages of simple structure, small size, light weight, convenient carrying and use.

[0066] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered as falling within the scope of the present disclosure.

[0067] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An insulation detector testing device, characterized by, The insulation detector detection device includes a power supply unit, an insulation resistance unit, a switch unit, a control unit and an information processing unit, the power supply unit includes: A bus voltage unit for simulating bus voltage, the bus voltage unit is used to connect with the power port of the insulation detector; An alternating voltage unit capable of outputting alternating voltage, the alternating voltage unit is connected with the port of the insulation detector; A direct current voltage unit capable of outputting direct current voltage, the direct current voltage unit is connected with the port of the insulation detector; The switch unit is electrically connected with the control unit, the control unit is used to control the on-off of the switch unit, and the switch unit is electrically connected with the bus voltage unit, the alternating voltage unit, the direct current voltage unit and the insulation resistance unit, so that the bus voltage unit, the alternating voltage unit, the direct current voltage unit and the insulation resistance unit are connected or disconnected with the insulation detector; The switch unit includes a plurality of switches, each switch is electrically connected with the control unit, at least one switch is connected with the bus voltage unit, the alternating voltage unit, the direct current voltage unit and the insulation resistance unit respectively, and the control unit is used to control the connection or disconnection of the switches; The inside of the detection device is provided with a line connected with the positive electrode of the insulation detector, a line connected with the negative electrode of the insulation detector and a line connected with the ground wire of the insulation detector, a one-way switch is arranged on the first two lines respectively to control the on-off of the positive electrode and the negative electrode of the insulation detector respectively; The selection switch is arranged on the alternating voltage unit and the direct current voltage unit and connected with the above three lines, so that the direct current voltage unit is connected with the above three lines, or the alternating voltage unit is connected with the above three lines; The information processing unit is electrically connected with the alternating voltage unit, the direct current voltage unit and the insulation resistance unit, the information processing unit can collect and process the actual output values of the alternating voltage unit, the direct current voltage unit and the insulation resistance unit, and the information processing unit is also connected with the port of the insulation detector to collect the input values detected by the insulation detector; Wherein, by comparing the actual output value with the input value, whether the detection accuracy of the insulation detector meets the preset threshold value is determined, whether the detection accuracy of the insulation detector meets the standard is determined, and a report is generated.

2. The insulation detector detection device of claim 1, wherein, When the bus voltage unit and the alternating voltage unit are connected with the insulation detector, the actual output value of the alternating voltage unit is compared with the input value detected by the insulation detector, so as to test the alternating voltage accuracy of the insulation detector or the alternating voltage alarm.

3. The insulation detector detection device of claim 2, wherein, The live wire of the alternating voltage unit is connected with the negative electrode of the insulation detector, and the zero line of the alternating voltage unit is connected with the ground wire of the insulation detector, so as to test the negative electrode to ground alternating voltage accuracy of the insulation detector; Or, the live wire of the AC voltage unit is connected with the positive pole of the insulation detector, and the zero wire of the AC voltage unit is connected with the ground wire of the insulation detector, so as to test the AC voltage precision between the positive pole and the ground of the insulation detector. Or, the AC voltage unit is connected with the bus voltage unit in series, so as to test the AC series electric alarm of the insulation detector.

4. The insulation detector detection apparatus according to any one of claims 1 to 3, characterized in that, When the bus voltage unit and the DC voltage unit are connected with the insulation detector, the actual output value of the DC voltage unit is compared with the input value detected by the insulation detector, so as to test the DC voltage precision or the DC series electric alarm of the insulation detector.

5. The insulation detector detection device of claim 4, wherein, The positive pole of the DC voltage unit is connected with the positive pole of the insulation detector, and the negative pole of the DC voltage unit is connected with the negative pole of the insulation detector, so as to test the DC voltage precision between the positive pole and the negative pole of the insulation detector. Or, the positive pole of the DC voltage unit is connected with the positive pole of the insulation detector, and the negative pole of the DC voltage unit is connected with the ground wire of the insulation detector, so as to test the DC voltage precision between the negative pole and the ground of the insulation detector. Or, the positive pole of the DC voltage unit is connected with the ground wire of the insulation detector, and the negative pole of the DC voltage unit is connected with the negative pole of the insulation detector, so as to test the DC voltage precision between the positive pole and the ground of the insulation detector. Or, the DC voltage unit is connected with the bus voltage unit in series, so as to test the DC series electric alarm of the insulation detector.

6. The insulation detector detection apparatus of any one of claims 1 to 3, wherein, The positive pole of the bus voltage unit is connected with the positive pole of the insulation detector, and the negative pole of the bus voltage unit is connected with the negative pole of the insulation detector, and the insulation resistance unit is connected with the positive pole of the bus voltage unit in series, so as to test the positive pole ground alarm of the insulation detector. Or, the positive pole of the bus voltage unit is connected with the positive pole of the insulation detector, and the negative pole of the bus voltage unit is connected with the negative pole of the insulation detector, and the insulation resistance unit is connected with the negative pole of the bus voltage unit in series, so as to test the negative pole ground alarm of the insulation detector.

7. The insulation detector detection apparatus of any one of claims 1 to 3, wherein, The insulation detector detection device comprises: A shell, the power supply unit, the insulation resistance unit and the information processing unit are integrated in the shell, and a plug interface is arranged on the shell, and the power supply unit and the insulation resistance unit are electrically connected to the plug interface; A plug connector, one end of the plug connector is matched with the plug interface, and the other end of the plug connector is matched with an interface on the insulation detector, and the insulation detector is electrically connected with the power supply unit and the insulation resistance unit through the plug connector.

8. The insulation detector detection apparatus of claim 7, wherein, The insulation detector detection device further comprises a display screen, the display screen is fixed on the shell and is electrically connected with the information processing unit and the insulation detector, and the display screen is used for displaying the information processing result of the information processing unit and the alarm result of the insulation detector. The shell is further provided with an insulation resistance interface, a voltage interface and an interface unit interface, the insulation resistance interface is used for external insulation resistance, the voltage interface is used for external external series electric DC voltage or external external series electric AC voltage, and the interface unit interface is used for external external multimeter or resistance box; The insulation detection instrument detection device further includes an interface unit, the interface unit is connected with the power supply unit and the insulation resistance unit, and the interface unit is electrically connected with the interface unit interface.

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