Disclosure of Invention
The embodiment of the invention provides an insulation monitor detection device and an insulation monitor detection method, which are used for reducing the workload of electric personnel, improving the detection efficiency of the insulation monitor and improving the operation safety of the insulation monitor detection personnel.
In a first aspect, an embodiment of the present invention provides an insulation monitor detection apparatus, which includes a resistance detection module, a resistance setting module, and a control module;
the first end of the resistance detection module is connected with the first end of the resistance setting module and is used as the first end of the insulation monitor detection equipment; the second end of the resistance detection module is connected with the second end of the resistance setting module and is used as the second end of the insulation monitor detection equipment;
the first end of the insulation monitor detection equipment and the insulation detector are connected with a loop to be detected, which is connected with a direct current power supply system, and the second end of the insulation monitor detection equipment is grounded;
the resistance setting module is used for setting a target resistance, the resistance detection module is used for detecting the resistance value of the target resistance, and the control module is used for acquiring the resistance value and detection data of the insulation monitor and judging whether the insulation monitor is abnormal or not according to the resistance value and the detection data.
Optionally, the control module includes a first data processing unit;
the resistance detection module and the insulation monitor are connected with the first data processing unit; the first data processing unit is used for acquiring the resistance value and detection data of the insulation monitor, and judging whether the insulation monitor is abnormal or not according to the resistance value and the detection data.
Optionally, the control module comprises a second data processing unit and a data monitoring unit;
the data monitoring unit and the resistance detection module are connected with the second data processing unit, and the data monitoring unit is used for shooting the detection data displayed by the insulation monitor; the second data processing unit is used for acquiring the resistance value and detection data of the insulation monitor, and judging whether the insulation monitor is abnormal or not according to the resistance value and the detection data.
Optionally, the resistance detection module comprises a resistance detection unit, a switch unit and a power supply unit;
the first end of the resistance detection unit is used as the first end of the resistance detection module, and the second end of the resistance detection unit is used as the second end of the resistance detection module;
the third end of the resistance detection unit is connected with the first end of the switch unit, the second end of the switch unit is connected with the first end of the power supply unit, and the second end of the power supply unit is connected with the fourth end of the resistance detection unit;
the switch unit is used for controlling the starting or stopping of the resistance detection unit, and the power supply unit is used for supplying power to the resistance detection unit.
Optionally, the resistance detection unit includes a resistance meter, a first end of the resistance meter is used as a first end of the resistance detection unit, a second end of the resistance meter is used as a second end of the resistance detection unit, a third end of the resistance meter is used as a third end of the resistance detection unit, and a fourth end of the resistance meter is used as a fourth end of the resistance detection unit;
the switch unit includes a rocker switch having a first end as a first end of the switch unit and a second end as a second end of the switch unit.
Optionally, the resistance setting module includes a shift unit, a plurality of fixed resistance setting units, and a variable resistance setting unit;
the gear shifting unit comprises a fixed end, a plurality of fixed resistor ends and a variable resistor end; the fixed end is connected with the first end of the resistance detection module, each fixed resistance end is connected with one fixed resistance setting unit, and the variable resistance end is connected with the variable resistance setting unit;
the shift unit is used for connecting the fixed resistance setting unit or the variable resistance setting unit with the resistance detection module.
Optionally, the gear shifting unit comprises a multi-gear switch, and the multi-gear switch comprises a first end, a first type end and a plurality of second type ends;
the first end of the multi-gear switch is used as the fixed end of the gear shifting unit, the first type end of the multi-gear switch is used as the variable resistance end of the gear shifting unit, and the second type end of the multi-gear switch is used as the fixed resistance end of the gear shifting unit.
Optionally, the variable resistance setting unit includes a current limiter subunit and a resistance adjuster subunit;
the first end of the current limiting subunit is connected with the variable resistance end, the second end of the current limiting subunit is connected with the first end of the resistance adjusting subunit, and the second end of the adjusting subunit is connected with the second end of the resistance detection module;
the current limiter is used for limiting the current flowing into the resistance adjusting subunit, and the resistance adjusting subunit is used for adjusting the self resistance.
Optionally, the insulation monitor detection device further comprises a protection module;
the first end of the protection module, the first end of the resistance setting module and the first end of the resistance detection module are connected, and the second end of the protection module is used as the first end of the insulation monitor detection equipment; or,
the first end of the protection module, the second end of the resistance setting module and the second end of the resistance detection module are connected, and the second end of the protection module is used as the second end of the insulation monitor detection equipment;
the protection module is used for protecting the resistance setting module.
In a second aspect, an embodiment of the present invention further provides an insulation monitor detection method, where the insulation monitor detection device provided in any embodiment of the present invention is used for detection. The detection method of the insulation monitor comprises the following steps:
connecting a first end of the insulation monitor detection equipment to a circuit to be detected of a direct current power supply system, and grounding a second end of the insulation monitor detection equipment;
the control module acquires the resistance value and detection data of the insulation monitor, and judges whether the insulation monitor is abnormal or not according to the resistance value and the detection data.
The resistance setting module of the insulation monitor detection equipment provided by the embodiment of the invention can quickly and conveniently set the self resistance value, the resistance detection module can monitor the set resistance of the resistance setting module in real time, and the control module can accurately and quickly judge whether the insulation monitor is abnormal according to the acquired resistance value and detection data. Therefore, the insulation monitor detection equipment is adopted to detect the insulation monitor, the first end of the insulation monitor detection equipment is only required to be connected to the loop to be detected of the direct-current power supply system, the second end of the insulation monitor detection equipment is grounded, and the control module can feed back the abnormal state of the insulation monitor to the staff. Compared with the existing mode of detecting the insulation monitor, the insulation monitor detection equipment is adopted to detect the insulation monitor, so that the workload of electric personnel can be reduced, the detection efficiency of the insulation monitor is improved, and the operation safety of the insulation monitor detection personnel is improved.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the invention provides an insulation monitor detection device, fig. 1 is a schematic structural diagram of the insulation monitor detection device provided by the embodiment of the invention, as shown in fig. 1, the insulation monitor detection device comprises a resistance detection module 110, a resistance setting module 120 and a control module 130; the first end of the resistance detection module 110 is connected with the first end of the resistance setting module 120 and serves as the first end of the insulation monitor detection device; a second end of the resistance detection module 110 is connected with a second end of the resistance setting module 120 and is used as a second end of the insulation monitor detection device; the first end of the insulation monitor detection equipment and the insulation monitor 300 are connected with a circuit 200 to be detected of the direct current power supply system, and the second end of the insulation monitor detection equipment is grounded; the resistance setting module 120 is configured to set a target resistance, the resistance detecting module 110 is configured to detect a resistance value of the target resistance, and the control module 130 is configured to obtain the resistance value and detection data of the insulation monitor 300, and determine whether the insulation monitor 300 is abnormal according to the resistance value and the detection data.
The resistance setting module 120 may set the resistance of itself, for example, the resistance setting module 120 sets the resistance of itself to 12 kohms, 20 kohms, 30 kohms, or the like. The resistance detection module 110 may detect the resistance value set by the resistance setting module 120, and display the resistance value set by the resistance setting module 120. The control module 130 is a data processing center, and when the insulation monitor detecting device detects the insulation monitor 300, the control module 130 may obtain the resistance value set by the resistance setting module 120 through the resistance detecting module 110. Meanwhile, the control module 130 may further obtain monitoring data of the insulation monitor 300, and determine whether the insulation monitor 300 is abnormal according to the resistance value and the detection data.
The detection process of the insulation monitor detection equipment to the insulation monitor is as follows: the first end of the insulation monitor detecting device is connected to the circuit to be detected 200 of the direct current power supply system, and the second end of the insulation monitor detecting device is grounded. At this time, the control module 130 obtains the resistance value set by the resistance setting module 120 and the monitoring data of the insulation monitor 300 through the resistance detection module 110, and determines whether the insulation monitor 300 is abnormal according to the resistance value and the detection data.
The resistance setting module 120 of the insulation monitor detection device provided by the embodiment of the invention can quickly and conveniently set the self resistance value, the resistance detection module 110 can monitor the set resistance of the resistance setting module 120 in real time, and the control module 130 can accurately and quickly judge whether the insulation monitor 300 is abnormal according to the acquired resistance value and detection data. Therefore, the insulation monitor 300 is detected by the insulation monitor detecting device, the first end of the insulation monitor detecting device is only required to be connected to the circuit 200 to be detected of the direct current power supply system, the second end of the insulation monitor detecting device is grounded, and the control module 130 can feed back the abnormal state of the insulation monitor 300 to the staff. Compared with the existing mode of detecting the insulation monitor 300, the insulation monitor 300 is detected by adopting the insulation monitor detection equipment, so that the workload of electric personnel can be reduced, the detection efficiency of the insulation monitor 300 is improved, and the safety of the operation of the insulation monitor 300 for detecting personnel is improved.
Optionally, the monitoring data includes a ground signal, a ground resistance value, and loop information to be detected.
Specifically, the specific process that the control module judges whether the insulation monitor is abnormal according to the resistance value and the detection data is as follows: the control module firstly acquires a grounding signal, a grounding resistance value and loop information to be detected according to the monitoring data, then judges whether the grounding signal represents grounding of the loop to be detected, judges whether the grounding resistance value is equal to the grounding resistance, and judges whether the loop information to be detected is consistent with actual information of the loop to be detected. If the grounding signal indicates that the circuit to be detected is grounded, the grounding resistance value is equal to the grounding resistance, the information of the circuit to be detected is consistent with the actual information of the circuit to be detected, and the control module judges that the insulation monitor is normal; otherwise, the control module judges that the insulation monitor is abnormal.
Fig. 2 is a schematic structural diagram of another insulation monitor detection apparatus according to an embodiment of the present invention, as shown in fig. 2, the control module 130 includes a first data processing unit 131; the resistance detection module 110 and the insulation monitor 300 are connected with the first data processing unit 131; the first data processing unit 131 is configured to obtain the resistance value and the detection data of the insulation monitor 300, and determine whether the insulation monitor 300 is abnormal according to the resistance value and the detection data.
The first data processing unit 131 includes a single chip microcomputer or an industrial personal computer. The resistance detection module 110 is connected to the first data processing unit 131, and the resistance detection module 110 may transmit the resistance value of the target resistance set by the detection resistance setting module 120 to the first data processing unit 131. The insulation monitor 300 is connected to the first data processing unit 131, and the insulation monitor 300 may send the monitoring data of the loop to be tested to the first data processing unit 131. The first data processing unit 131 firstly obtains a grounding signal, a grounding resistance value and information of a loop to be detected according to the monitoring data, then determines whether the grounding signal represents grounding of the loop to be detected 200, determines whether the grounding resistance value is equal to the grounding resistance value, and determines whether the information of the loop to be detected is consistent with the actual information of the loop to be detected 200. If the grounding signal indicates that the circuit to be detected 200 is grounded, the grounding resistance value is equal to the grounding resistance, the information of the circuit to be detected is consistent with the actual information of the circuit to be detected 200, and the first data processing unit 131 determines that the insulation monitor 300 is normal; otherwise, the first data processing unit 131 determines that the insulation monitor 300 is abnormal.
Fig. 3 is a schematic structural diagram of another insulation monitor detection apparatus according to an embodiment of the present invention, as shown in fig. 3, the control module 130 includes a second data processing unit 132 and a data monitoring unit 133; the data monitoring unit 133 and the resistance detection module 110 are connected to the second data processing unit 132, and the data monitoring unit 133 is used for shooting detection data displayed by the insulation monitor 300; the second data processing unit 132 is configured to obtain the resistance value and the detection data of the insulation monitor 300, and determine whether the insulation monitor 300 is abnormal according to the resistance value and the detection data.
The first data processing unit 131 includes a single chip microcomputer or an industrial personal computer, and the data monitoring unit 133 includes a video camera. The data monitoring unit 133 is disposed near the insulation monitor, and can monitor the monitoring data displayed by the insulation monitor 300. The resistance detection module 110 is connected to the second data processing unit 132, and the resistance detection module 110 may transmit the resistance value of the target resistance set by the resistance setting module 120 to the second data processing unit 132. The data monitoring unit 133 is connected to the second data processing unit 132, and the data monitoring unit 133 may transmit the detection data displayed by the photographed insulation monitor 300 to the second data processing unit 132. The second data processing unit 132 firstly obtains the grounding signal, the grounding resistance value and the circuit information to be detected according to the monitoring data, then judges whether the grounding signal represents the grounding of the circuit 200 to be detected, judges whether the grounding resistance value and the grounding resistance are equal, and judges whether the circuit information to be detected is consistent with the actual information of the circuit 200 to be detected. If the grounding signal indicates that the circuit to be detected 200 is grounded, the grounding resistance value is equal to the grounding resistance, the information of the circuit to be detected is consistent with the actual information of the circuit to be detected 200, and the second data processing unit 132 determines that the insulation monitor 300 is normal; otherwise, the second data processing unit 132 determines that the insulation monitor 300 is abnormal.
Fig. 4 is a schematic structural diagram of another insulation monitor detection device according to an embodiment of the present invention, and as shown in fig. 4, a resistance detection module 110 includes a resistance detection unit 111, a switch unit 112, and a power supply unit 113; the first end of the resistance detection unit 111 serves as a first end of the resistance detection module 110, and the second end of the resistance detection unit 111 serves as a second end of the resistance detection module 110; the third end of the resistance detection unit 111 is connected to the first end of the switch unit 112, the second end of the switch unit 112 is connected to the first end of the power supply unit 113, and the second end of the power supply unit 113 is connected to the fourth end of the resistance detection unit 111; the switching unit 112 is used to control the start or stop of the resistance detection unit 111, and the power supply unit 113 is used to supply power to the resistance detection unit 111.
Wherein the third terminal of the resistance detection unit 111, the switching unit 112, the power supply unit 113, and the fourth terminal of the resistance detection unit 111 are connected in series. When the switch unit 112 is closed, a loop between the resistance detection unit 111 and the power supply unit 113 is closed, and the power supply unit 113 supplies power to the resistance detection unit 111, so that the resistance detection unit 111 is started, and the resistance detection module 110 is used for detecting the resistance value of the target resistance.
Specifically, the resistance detection unit 111 includes a resistance meter, a first end of the resistance meter is a first end of the resistance detection unit 111, a second end of the resistance meter is a second end of the resistance detection unit 111, a third end of the resistance meter is a third end of the resistance detection unit 111, and a fourth end of the resistance meter is a fourth end of the resistance detection unit 111; the switching unit 112 includes a rocker switch having a first end as a first end of the switching unit 112 and a second end as a second end of the switching unit 112.
The first end of the resistance meter is connected to the first end of the resistance setting module 120, the second end of the resistance meter is connected to the second end of the resistance setting module 120, the third end of the resistance meter is connected to the first end of the rocker switch, the second end of the rocker switch is connected to the first end of the power supply unit 113, and the second end of the power supply unit 113 is connected to the fourth end of the resistance meter. In addition, the power supply unit 113 includes a battery.
Alternatively, the resistance meter comprises a three-bit half LCD digital display resistance meter model YB5135 DR.
It should be noted that: the type of the resistor is selected according to the loop to be detected of the direct current power supply system, and the scheme is not particularly limited.
Fig. 5 is a schematic structural diagram of another insulation monitor detecting device according to an embodiment of the present invention, and as shown in fig. 5, a resistance setting module 120 includes a shift unit 121, a plurality of fixed resistance setting units 122, and a variable resistance setting unit 123; the shift unit 121 includes a fixed end a, a plurality of fixed resistor ends B, and a variable resistor end C; the fixed end A is connected with the first end of the resistance detection module 110, each fixed resistance end B is connected with a fixed resistance setting unit 122, and the variable resistance end C is connected with a variable resistance setting unit 123; the shift unit 121 is used for connecting the fixed resistance setting unit 122 or the variable resistance setting unit 123 with the resistance detection module 110.
The fixed resistance setting unit 122 includes a resistance of a fixed resistance value, for example, a 12 kilo-ohm resistance, a 20 kilo-ohm resistance, or a 30 kilo-ohm resistance. The variable resistance setting unit 123 has variable resistance including a variable resistance device such as a potentiometer or a slide rheostat. When the insulation monitor detection equipment needs to set the fixed resistor, the gear shifting unit 121 is only needed to shift gears, so that the fixed end A of the gear shifting unit 121 is conducted with the fixed resistor end B connected with the required fixed resistor setting unit 122. When the resistance value fixed resistance setting unit 122 required by the insulation monitor detecting device cannot be provided, the fixed end a of the shift unit 121 is conducted with the variable resistance end C connected with the variable resistance setting unit 123, and the required resistance value is set by the variable resistance setting unit 123. Therefore, the resistance setting module 120 can improve the applicability of the insulation monitor detecting device to detect the insulation monitors 300 with a plurality of different dc power sources.
It should be noted that: the number of the fixed resistance setting units 122 and the resistance value of each fixed resistance setting unit 122 are set according to the actually required detected direct current power supply system. The maximum threshold value of the grounding resistance corresponding to the 110V direct current power supply system is 15 kiloohms, and the maximum threshold value of the grounding resistance corresponding to the 220V direct current power supply system is 25 kiloohms.
In addition, the shift unit 121 includes a multi-shift switch including a first end, a first type end, and a plurality of second type ends; the first end of the multi-gear switch serves as a fixed end A of the gear shifting unit 121, the first type end of the multi-gear switch serves as a variable resistance end C of the gear shifting unit 121, and the second type end of the multi-gear switch serves as a fixed resistance end B of the gear shifting unit 121.
Wherein, the first end of the multi-gear switch is connected to the first end of the resistance detection module 110, the first type end of the multi-gear switch is connected to the variable resistance setting unit 123, and each second type end of the multi-gear switch is connected to a fixed resistance setting unit 122.
Fig. 6 is a schematic structural diagram of another insulation monitor detecting device according to an embodiment of the present invention, and as shown in fig. 6, the variable resistance setting unit 123 includes a current limiter unit 1231 and a resistance regulator unit 1232; the first end of the current limiter unit 1231 is connected to the variable resistor end C, the second end of the current limiter unit 1231 is connected to the first end of the resistance regulator unit 1232, and the second end of the regulator unit is connected to the second end of the resistance detection module 110; the current limiter unit 1231 is used to limit the current flowing into the resistance adjuster unit 1232, and the resistance adjuster unit 1232 is used to adjust the resistance thereof.
Specifically, the current limiter subunit 1231 may limit the current flowing into the resistance regulator subunit 1232 to avoid the resistance regulator subunit 1232 from being burned due to excessive inflow current. For example, the current limiting subunit 1231 includes a protection resistor, and the resistance adjusting subunit 1232 includes a potentiometer.
Fig. 7 is a schematic structural diagram of another insulation monitor detection apparatus provided by the embodiment of the present invention, and fig. 8 is a schematic structural diagram of another insulation monitor detection apparatus provided by the embodiment of the present invention, referring to fig. 7 and fig. 8, the insulation monitor detection apparatus further includes a protection module 140; the first end of the protection module 140, the first end of the resistance setting module 120 and the first end of the resistance detection module 110 are connected, and the second end of the protection module 140 is used as the first end of the insulation monitor detection device; alternatively, the first end of the protection module 140, the second end of the resistance setting module 120, and the second end of the resistance detection module 110 are connected, and the second end of the protection module 140 is used as the second end of the insulation monitor detection device; the protection module 140 is used for protecting the resistance setting module 120.
Specifically, in fig. 7, the first end of the protection module 140, the first end of the resistance setting module 120, and the first end of the resistance detection module 110 are connected, and the second end of the protection module 140 serves as the first end of the insulation monitor detection device. In fig. 8, a first end of the protection module 140, a second end of the resistance setting module 120, and a second end of the resistance detection module 110 are connected, and the second end of the protection module 140 serves as a second end of the insulation monitor detection device. The protection module 140 may disconnect the insulation monitor detection device from the circuit 200 to be detected under the condition that the current of the circuit 200 to be detected of the dc power supply system is too large, so as to protect the resistance setting module 120 of the insulation monitor detection device.
Optionally, the protection module comprises a fuse.
When the current of the loop to be detected of the direct current power supply system is too large, the fuse is fused to disconnect the connecting loop between the loop to be detected of the direct current power supply system and the resistance setting module.
Fig. 9 is a schematic flow chart of an insulation monitor detection method according to an embodiment of the present invention, where the insulation monitor detection method uses the insulation monitor detection device according to any embodiment of the present invention for detection. The detection method of the insulation monitor comprises the following steps:
s10, connecting a first end of the insulation monitor detection equipment to a circuit to be detected of the direct current power supply system, and grounding a second end of the insulation monitor detection equipment.
S20, the control module acquires the resistance value and detection data of the insulation monitor, and judges whether the insulation monitor is abnormal or not according to the resistance value and the detection data.
According to the embodiment of the invention, the insulation monitor is detected by adopting the insulation monitor detection equipment, the first end of the insulation monitor detection equipment is only required to be connected with the circuit to be detected of the direct current power supply system, the second end of the insulation monitor detection equipment is grounded, and the control module can feed back whether the insulation monitor of the staff is abnormal or not. Compared with the existing mode of detecting the insulation monitor, the insulation monitor detection equipment is adopted to detect the insulation monitor, so that the workload of electric personnel can be reduced, the detection efficiency of the insulation monitor is improved, and the operation safety of the insulation monitor detection personnel is improved.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.