CN113433412A - Measurement and control five-prevention function detection device and system - Google Patents
Measurement and control five-prevention function detection device and system Download PDFInfo
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- CN113433412A CN113433412A CN202110863108.3A CN202110863108A CN113433412A CN 113433412 A CN113433412 A CN 113433412A CN 202110863108 A CN202110863108 A CN 202110863108A CN 113433412 A CN113433412 A CN 113433412A
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The embodiment of the invention discloses a measurement and control five-prevention function detection device and system. The measurement and control five-prevention function detection device comprises a control module, a five-prevention logic module and an output module; the control module is connected with the five-prevention logic module, the control module is connected with the output module, the control module controls the output module to output voltage according to the five-prevention logic input by the five-prevention logic module, the output voltage is used for providing a five-prevention detection signal for the equipment to be detected, and the equipment to be detected determines whether the five-prevention function is normal or not according to the five-prevention detection signal. According to the scheme, the control module is used for calling the required five-prevention logic control output module from the five-prevention logic module to output the voltage serving as the five-prevention detection signal to the equipment to be detected, so that whether the five-prevention function of the equipment to be detected is normal or not can be rapidly determined, and the detection efficiency of the five-prevention function of the equipment to be detected is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of misoperation prevention of a transformer substation power monitoring system, in particular to a measurement and control five-prevention function detection device and system.
Background
The transformer substation five-prevention system is generally composed of three parts, namely station control layer five prevention, bay layer five prevention and electric five prevention. For the newly built or transformed measurement and control device of the transformer substation, an automation system technician performs anti-misoperation function configuration on the measurement and control device according to a given five-prevention locking rule. Before the measurement and control device is put into operation, the locking function of the measurement and control device needs to be checked and accepted on site, and the correctness of the five-prevention locking function of the measurement and control device is determined after signals such as a switch, a disconnecting link, a grounding switch and the like which are accessed into the measurement and control device are accessed.
At present, two acceptance methods for five-prevention locking functions of a transformer substation measurement and control device are provided. The first method is that the operator compiles a corresponding operation ticket according to the five-prevention rule, and actually operates the corresponding switch disconnecting link or grounding switch according to the operation steps, and simultaneously operates on the measurement and control device at the corresponding interval to verify the correctness of the five-prevention function of the device. The second method is that according to the interval five-prevention rule, corresponding opening signals are manually set at the signal access positions of a related screen position switch disconnecting link and the like, the position of an actual switch disconnecting link is simulated, and whether the interval five-prevention function is correct is verified. The method I needs more steps and is low in efficiency, the method II is usually adopted for field acceptance at present, but the method II needs to repeatedly perform operations such as unlocking and short-circuiting on the terminal strip, the efficiency is still not high, and the risk of mistakenly touching and mistakenly connecting and influencing other signal loops of the screen cabinet exists.
Disclosure of Invention
The embodiment of the invention provides a device and a system for detecting a five-prevention function of measurement and control, which are used for improving the detection efficiency of the five-prevention function device.
In a first aspect, an embodiment of the present invention provides a measurement and control five-prevention function detection apparatus, including a control module, a five-prevention logic module, and an output module;
the control module is connected with the five-prevention logic module, the control module is connected with the output module, the control module controls the output module to output voltage according to the five-prevention logic input by the five-prevention logic module, the output voltage is used for providing a five-prevention detection signal for the equipment to be detected, and the equipment to be detected determines whether the five-prevention function is normal or not according to the five-prevention detection signal.
Optionally, the measurement and control five-prevention function detection device further comprises a display module;
the display module is connected with the control module, is used for displaying the output state that the control module controls the output module, and whether the display module still is used for showing the five-prevention function of waiting to examine equipment normal.
Optionally, the measurement and control five-prevention function detection device further comprises a power supply conversion module;
the first end of the power supply conversion module is connected with an external power supply, the second end of the power supply conversion module is respectively connected with the display module, the control module and the output module, and the power supply conversion module is used for supplying power to the display module, the control module and the output module.
Optionally, the power conversion module comprises an ac-dc converter;
the first end of the AC-DC converter is used as the first end of the power conversion module, and the second end of the AC-DC converter is used as the second end of the power conversion module.
Optionally, the display module comprises a display panel;
the display panel is connected with the control module, is used for displaying the output state of the control module control output module, and is also used for displaying whether the five-prevention function of the equipment to be detected is normal.
Optionally, the measurement and control five-prevention function detection device further comprises an input module;
the input module is connected with the control module and used for inputting the five-prevention logic to the control module.
Optionally, the measurement and control five-prevention function detection device further comprises an indication module and an output interface;
the first end of the indicating module is connected with the output module, the second end of the indicating module is connected with the output interface, and the indicating module is used for indicating the output state of the output interface.
Optionally, the indication module comprises a light emitting diode;
the first end of the light emitting diode is used as the first end of the indicating module, and the second end of the light emitting diode is used as the second end of the indicating module.
Optionally, the measurement and control five-prevention function detection device further comprises a serial bus interface;
and the serial bus interface is connected with the five-prevention logic module and is used for inputting the five-prevention logic to the five-prevention logic module.
In a second aspect, an embodiment of the present invention further provides a measurement and control five-prevention function detection system, including the measurement and control five-prevention function detection device, an external power supply, and a device to be detected, provided in any embodiment of the first aspect;
the external power source is connected with the measurement and control five-prevention function detection device, the measurement and control five-prevention function detection device is connected with the equipment to be detected, the external power source is used for providing electric energy for the measurement and control five-prevention function detection device, the measurement and control five-prevention function detection device is used for providing a five-prevention detection signal for the equipment to be detected, and whether the five-prevention function of the equipment to be detected is normal is detected.
According to the embodiment of the invention, the control module is used for calling the required five-prevention logic control output module from the five-prevention logic module to output the voltage serving as the five-prevention detection signal to the equipment to be detected, so that whether the five-prevention function of the equipment to be detected is normal can be rapidly determined, and the detection efficiency of the five-prevention function of the equipment to be detected is improved.
Drawings
To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required for the embodiments or the technical solutions in the prior art, and it is obvious that the drawings in the following description, although being some specific embodiments of the present invention, can be extended and extended to other structures and drawings by those skilled in the art according to the basic concepts of the device structure, the driving method and the manufacturing method disclosed and suggested by the various embodiments of the present invention, without making sure that these should be within the scope of the claims of the present invention.
Fig. 1 is a schematic structural diagram of a measurement and control five-prevention function detection device provided by an embodiment of the invention;
fig. 2 is a schematic structural diagram of another measurement and control five-prevention function detection device provided by the embodiment of the invention;
fig. 3 is a schematic structural diagram of another measurement and control five-prevention function detection device provided by the embodiment of the invention;
fig. 4 is a schematic structural diagram of another measurement and control five-prevention function detection device provided by the embodiment of the invention;
fig. 5 is a schematic structural diagram of another measurement and control five-prevention function detection device provided by the embodiment of the invention;
fig. 6 is a schematic structural diagram of another measurement and control five-prevention function detection device provided in the embodiment of the present invention;
fig. 7 is a schematic structural diagram of a connection of a measurement and control five-prevention function detection system provided by an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a device to be detected according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a measurement and control five-prevention function detection device, and fig. 1 is a schematic structural diagram of the measurement and control five-prevention function detection device provided by the embodiment of the invention. As shown in fig. 1, the measurement and control five-prevention function detection device includes a control module 110, a five-prevention logic module 120, and an output module 130; the control module 110 is connected with the five-prevention logic module 120, the control module 110 is connected with the output module 130, the control module 110 controls the output module 130 to output voltage according to the five-prevention logic input by the five-prevention logic module 120, the output voltage is used for providing a five-prevention detection signal for the device to be detected 210, and the device to be detected 210 determines whether the five-prevention function is normal or not according to the five-prevention detection signal.
The measurement and control five-prevention function detection device is connected with the equipment to be detected 210, the measurement and control five-prevention function detection device can provide five-prevention detection signals with different five-prevention logics for the equipment to be detected 210, and the equipment to be detected 210 can determine whether the five-prevention function is normal according to the five-prevention detection signals with the different five-prevention logics. The measurement and control five-prevention function detection device comprises a control module 110, a five-prevention logic module 120 and an output module 130. The control module 110 is a central controller of the measurement and control five-prevention function detection device, and can coordinate other function modules to work, so as to generate a five-prevention detection signal for detecting the device to be detected 210. The five-prevention logic module 120 is used for storing five-prevention logic written in advance according to five-prevention rules. The output module 130 may output a voltage corresponding to the five-prevention logic as a five-prevention detection signal provided to the device under test 210. Specifically, the control module 110 is connected to the five-prevention logic module 120, and the control module 110 retrieves the required five-prevention logic from the five-prevention logic module 120 according to the detection requirement of the device 210 to be detected. The control module 110 is connected with the output module 130, the control module 110 controls the output module 130 to output voltage according to the five-prevention logic acquired from the five-prevention logic module 120, and the voltage output by the output module 130 is provided to the device to be detected 210 as a five-prevention detection signal, so that the device to be detected 210 can quickly determine whether the five-prevention function is normal or not according to the five-prevention detection signal.
In summary, in the present solution, the control module 110 retrieves the required voltage output as the five-prevention detection signal by the five-prevention logic control output module 130 from the five-prevention logic module 120 and provides the voltage to the device to be detected 210, so that whether the five-prevention function of the device to be detected 210 is normal can be quickly determined, and the detection efficiency of the five-prevention function of the device to be detected 210 is improved.
Fig. 2 is a schematic structural diagram of another measurement and control five-prevention function detection device according to an embodiment of the present invention, and as shown in fig. 2, the measurement and control five-prevention function detection device further includes a display module 140; the display module 140 is connected to the control module 110, the display module 140 is configured to display an output state of the control module 110 controlling the output module 130, and the display module 140 is further configured to display whether the five-prevention function of the device to be detected 210 is normal.
The measurement and control five-prevention function detection device further comprises a display module 140. Specifically, the display module 140 is connected to the control module 110, and the display module 140 can read the output state of the output module 130 through the control module 110. For example, the display module 140 may display the state of the output module 130 by the color of the image of the analog output module 130 (indicating that the output module 130 is in an output state when the image of the analog output module 130 is changed to green, and indicating that the output module 130 is in a non-output state when the image of the analog output module 130 is changed to red). The measurement and control five-prevention function detection device can not only provide a five-prevention detection signal for the device to be detected, but also receive the five-prevention signal output by the device to be detected, the control module 110 reads the five-prevention signal generated by the device to be detected through the output module 130, can judge whether the five-prevention signal generated by the device to be detected is correct, and can display the judgment result through the display module 140. For example, the display module 140 may display whether the five-prevention function of the device to be detected 210 is normal by simulating the image color of the device to be detected 210 (for example, simulating that the image color of the device to be detected 210 changes to green may indicate that the five-prevention function of the device to be detected 210 is normal, and simulating that the image color of the device to be detected 210 changes to red may indicate that the five-prevention function of the device to be detected 210 is abnormal).
Fig. 3 is a schematic structural diagram of another measurement and control five-prevention function detection device according to an embodiment of the present invention, and as shown in fig. 3, the measurement and control five-prevention function detection device further includes a power conversion module 150; the first end of the power conversion module 150 is connected to the external power 220, the second end of the power conversion module 150 is connected to the display module 140, the control module 110 and the output module 130, respectively, and the power conversion module 150 is used for supplying power to the display module 140, the control module 110 and the output module 130.
The measurement and control five-prevention function detection device further comprises a power supply conversion module 150, and the power supply conversion module 150 can convert external input current into current required by other modules arranged in the measurement and control five-prevention function detection device. Specifically, a first end of the power conversion module 150 is connected to the external power 220, and a second end of the power conversion module 150 is connected to the display module 140, the control module 110, and the output module 130, respectively, so that the power conversion module 150 converts the ac power input by the external power 220 into dc power and outputs the dc power to the display module 140, the control module 110, and the output module 130.
Optionally, the power conversion module comprises an ac-dc converter; the first end of the AC-DC converter is used as the first end of the power conversion module, and the second end of the AC-DC converter is used as the second end of the power conversion module.
The power conversion module comprises an alternating current-direct current converter which can convert input alternating current into direct current and output the direct current. The first end of the ac-dc converter is used as the first end of the power conversion module, that is, the first end of the ac-dc converter is connected to an external power source, and the second end of the ac-dc converter is used as the second end of the power conversion module, that is, the second end of the ac-dc converter is respectively connected to the display module, the control module and the output module. Therefore, when the alternating current-direct current converter converts alternating current input by an external power supply into direct current, the direct current is output to the display module, the control module and the output module.
Optionally, the display module comprises a display panel; the display panel is connected with the control module, is used for displaying the output state of the control module control output module, and is also used for displaying whether the five-prevention function of the equipment to be detected is normal.
The display module comprises a display panel, and the display panel can be a light-emitting diode display screen. Specifically, the display panel is connected with the control module, and the display panel can read the output state of the output module through the control module. For example, the display panel may display the state of the output module by an image color of the analog output module (indicating that the output module is in an output state when the image of the analog output module becomes green and indicating that the output module is in a non-output state when the image of the analog output module becomes red). The measurement and control five-prevention function detection device can not only provide a five-prevention detection signal for the device to be detected, but also receive the five-prevention signal output by the device to be detected, the control module reads the five-prevention signal generated by the device to be detected through the output module, and can judge whether the five-prevention signal generated by the device to be detected is correct or not and display a judgment result through the display panel. For example, the display panel may display whether the five-prevention function of the device to be detected is normal or not by simulating the image color of the device to be detected (for example, simulating that the image color of the device to be detected changes to green may indicate that the five-prevention function of the device to be detected is normal, and simulating that the image color of the device to be detected changes to red may indicate that the five-prevention function of the device to be detected is abnormal).
Fig. 4 is a schematic structural diagram of another measurement and control five-prevention function detection device according to an embodiment of the present invention, and as shown in fig. 4, the measurement and control five-prevention function detection device further includes an input module 160; the input module 160 is connected to the control module 110, and the input module 160 is used for inputting the fail-safe logic to the control module 110.
The measurement and control five-prevention function detection device further comprises an input module 160, for example, the input module 160 may be an input keyboard. The input module 160 is connected to the control module 110, and the inspector can input the fail-safe logic to the control module 110 through the input module 160. Therefore, the control module 110 of the present solution can not only obtain the five-prevention logic written according to the five-prevention rule in advance from the five-prevention logic module 120, but also obtain the five-prevention logic input by the detection personnel through the input module 160 by reading the input module 160.
Fig. 5 is a schematic structural diagram of another measurement and control five-prevention function detection device according to an embodiment of the present invention, and as shown in fig. 5, the measurement and control five-prevention function detection device further includes an indication module 170 and an output interface 180; the first end of the indication module 170 is connected to the output module 130, the second end of the indication module 170 is connected to the output interface 180, and the indication module 170 is configured to indicate an output state of the output interface 180.
The measurement and control five-prevention function detection device further comprises an indication module 170 and an output interface 180. Specifically, a first end of the indication module 170 is connected to the output module 130, and a second end of the indication module 170 is connected to the output interface 180. Therefore, the voltage output by the output module 130 can be transmitted to the device to be tested 210 through the indication module 170 and the output port. The indication module 170 is configured to indicate an output state of the output interface 180, for example, the indication module 170 may be a light emitting diode, and if the voltage output by the output module 130 can be transmitted to the device to be detected 210, it indicates that the output interface 180 has voltage output, that is, the output interface 180 has a five-prevention detection signal output, and at this time, the light emitting diode emits light. If the voltage output by the output module 130 is not transmitted to the device to be detected 210, it indicates that the output interface 180 does not output voltage, that is, the output interface 180 does not output the five-prevention detection signal, and at this time, the light emitting diode does not emit light.
Optionally, the indication module comprises a light emitting diode; the first end of the light emitting diode is used as the first end of the indicating module, and the second end of the light emitting diode is used as the second end of the indicating module.
The indicating module comprises a light emitting diode, a first end of the light emitting diode is used as a first end of the indicating module, namely the first end of the light emitting diode is connected with the output module, and a second end of the light emitting diode is used as a second end of the indicating module, namely the second end of the light emitting diode is connected with the output interface. The voltage output by the output module can be transmitted to the equipment to be detected through the light emitting diode and the output port, and the light emitting diode can indicate the output state of the output port. For example, if the voltage output by the output module can be transmitted to the device to be detected, it indicates that the output interface has voltage output, that is, the output interface has five-prevention detection signal output, and at this time, the light emitting diode emits light. If the voltage output by the output module is not transmitted to the device to be detected, it is indicated that the output interface does not output voltage, that is, the output interface does not output a five-prevention detection signal, and at the moment, the light-emitting diode does not emit light.
Fig. 6 is a schematic structural diagram of another measurement and control five-prevention function detection device according to an embodiment of the present invention, and as shown in fig. 6, the measurement and control five-prevention function detection device further includes a serial bus interface 190; the serial bus interface 190 is connected to the five-prevention logic module 120, and the serial bus interface 190 is used for inputting the five-prevention logic to the five-prevention logic module 120.
The measurement and control five-prevention function detection device further comprises a serial bus interface 190. Specifically, the serial bus interface 190 is connected to the five-prevention logic module 120, and a tester can input the five-prevention logic written according to the five-prevention rule in advance into the five-prevention logic module 120 through the serial bus interface 190.
An embodiment of the present invention further provides a measurement and control five-prevention function detection system, fig. 7 is a schematic structural diagram of connection of the measurement and control five-prevention function detection system provided in an embodiment of the present invention, and as shown in fig. 7, the measurement and control five-prevention function detection system includes the measurement and control five-prevention function detection device 100, an external power supply 220, and a device to be detected 210 in any one of the above embodiments; the external power supply 220 is connected with the measurement and control five-prevention function detection device 100, the measurement and control five-prevention function detection device 100 is connected with the equipment to be detected 210, the external power supply 220 is used for providing electric energy for the measurement and control five-prevention function detection device 100, the measurement and control five-prevention function detection device 100 is used for providing a five-prevention detection signal for the equipment to be detected 210, and whether the five-prevention function of the equipment to be detected 210 is normal is detected.
Exemplarily, fig. 8 is a schematic structural diagram of a device to be detected according to an embodiment of the present invention, as shown in fig. 8, a switch closing 2201 is controlled to be closed by a knife switch 2201B0 and a knife switch 2201C0 at two ends of the switch closing 2201, and when any one of the knife switches 2201B0 and 2201C0 is closed, the switch closing 2201 needs to be in an open state. When both knife switch 2201B0 and knife switch 2201C0 are open, switch closure 2201 is in a closed state. The opening and closing states of the knife switch 2201B0 and the knife switch 2201C0 are actually operated to verify whether the five-prevention function of the switch 2201 is normal or not, and the manually operated knife switch not only has higher safety risk, but also has low manual complexity and efficiency.
According to the scheme, the five-prevention logic of switch closing 2201 is verified, the disconnecting link 2201B0 and the disconnecting link 2201C0 can be connected with the output interface of the measurement and control five-prevention function detection device, the measurement and control five-prevention function detection device is used for controlling the position of two disconnecting links, and the actual switching on and off of the disconnecting link is avoided. After the line is connected, the on-off condition of the switch closing 2201 is detected according to a five-prevention logic input measurement and control five-prevention function detection device shown in a switch closing 2201 five-prevention logic table.
| Sequence of | Knife switch 2201B0 | Knife switch 2201C0 | Switch-on 2201 |
| 1 | 1 | 1 | Break-off |
| 2 | 1 | 0 | Break-off |
| 3 | 0 | 1 | Break-off |
| 4 | 0 | 0 | Tong (Chinese character of 'tong') |
In the above table, the number "1" represents that the knife gate 2201B0 or the knife gate 2201C0 is in the closed state, and the number "0" represents that the knife gate 2201B0 or the knife gate 2201C0 is in the open state. "on" represents that the switch closure 2201 is in a closed state. Off represents the switch closure 2201 in an open state.
When the measurement and control five-prevention function detection device outputs a five-prevention detection signal to the disconnecting link 2201B0 and the disconnecting link 2201C0 according to the switch closing 2201 five-prevention logic, if the opening and closing state of the switch closing 2201 is consistent with the opening and closing state of the switch closing 2201 recorded in the switch closing 2201 five-prevention logic table, the five-prevention function of the switch closing 2201 is normal; if the on-off state of the switch closing 2201 is inconsistent with the on-off state of the switch closing 2201 recorded in the switch closing 2201 five-prevention logic table, the five-prevention function of the switch closing 2201 is abnormal. Therefore, whether the five-prevention function of the switch closing 2201 is normal or not can be determined quickly, and the detection efficiency of the five-prevention function of the switch closing 2201 is improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A measurement and control five-prevention function detection device is characterized by comprising a control module, a five-prevention logic module and an output module;
the control module is connected with the five-prevention logic module, the control module is connected with the output module, the control module controls the output voltage of the output module according to the five-prevention logic input by the five-prevention logic module, the output voltage is used for providing a five-prevention detection signal for the equipment to be detected, and the equipment to be detected determines whether the five-prevention function is normal or not according to the five-prevention detection signal.
2. The measurement and control five-prevention function detection device according to claim 1, further comprising a display module;
the display module is connected with the control module, is used for displaying the output state of the control module controlling the output module, and is also used for displaying whether the five-prevention function of the equipment to be detected is normal.
3. The measurement and control five-prevention function detection device according to claim 2, further comprising a power conversion module;
the first end of the power supply conversion module is connected with an external power supply, the second end of the power supply conversion module is respectively connected with the display module, the control module and the output module, and the power supply conversion module is used for supplying power to the display module, the control module and the output module.
4. The measurement and control five-prevention function detection device according to claim 3, wherein the power conversion module comprises an AC-DC converter;
the first end of the AC-DC converter is used as the first end of the power conversion module, and the second end of the AC-DC converter is used as the second end of the power conversion module.
5. The measurement and control five-prevention function detection device according to claim 2, wherein the display module comprises a display panel;
the display panel is connected with the control module, is used for displaying the output state of the control module for controlling the output module, and is also used for displaying whether the five-prevention function of the equipment to be detected is normal.
6. The measurement and control five-prevention function detection device according to claim 1, further comprising an input module;
the input module is connected with the control module and used for inputting the five-prevention logic to the control module.
7. The measurement and control five-prevention function detection device according to claim 1, further comprising an indication module and an output interface;
the first end of the indication module is connected with the output module, the second end of the indication module is connected with the output interface, and the indication module is used for indicating the output state of the output interface.
8. The measurement and control five-prevention function detection device according to claim 7, wherein the indication module comprises a light emitting diode;
the first end of the light emitting diode is used as the first end of the indicating module, and the second end of the light emitting diode is used as the second end of the indicating module.
9. The measurement and control five-prevention function detection device according to claim 1, further comprising a serial bus interface;
the serial bus interface is connected with the five-prevention logic module and used for inputting the five-prevention logic to the five-prevention logic module.
10. A measurement and control five-prevention function detection system is characterized by comprising the measurement and control five-prevention function detection device, an external power supply and equipment to be detected, wherein the measurement and control five-prevention function detection device comprises a power supply and a power supply;
the external power supply is connected with the measurement and control five-prevention function detection device, the measurement and control five-prevention function detection device is connected with the equipment to be detected, the external power supply is used for providing electric energy for the measurement and control five-prevention function detection device, the measurement and control five-prevention function detection device is used for providing a five-prevention detection signal for the equipment to be detected, and whether the five-prevention function of the equipment to be detected is normal is detected.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112332544A (en) * | 2020-11-13 | 2021-02-05 | 广东电网有限责任公司 | Five-prevention device for microcomputer |
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| CN102694420A (en) * | 2012-06-08 | 2012-09-26 | 上海毅昊自动化有限公司 | Intelligent transformer networked measurement and control system and method |
| CN102832707A (en) * | 2012-07-27 | 2012-12-19 | 江苏省电力公司电力科学研究院 | Misoperation-preventive locking logic automatic test system for intelligent transformer substation |
| CN111123017A (en) * | 2020-01-10 | 2020-05-08 | 广东电网有限责任公司 | 110kV measurement and control five-prevention logic inspection device |
| CN112332544A (en) * | 2020-11-13 | 2021-02-05 | 广东电网有限责任公司 | Five-prevention device for microcomputer |
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