CN110824352A - Relay protection logic checking device - Google Patents
Relay protection logic checking device Download PDFInfo
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- CN110824352A CN110824352A CN201911190770.6A CN201911190770A CN110824352A CN 110824352 A CN110824352 A CN 110824352A CN 201911190770 A CN201911190770 A CN 201911190770A CN 110824352 A CN110824352 A CN 110824352A
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- protection logic
- voltage pulse
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- main transformer
- processor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
Abstract
The invention discloses a relay protection logic checking device, wherein a plurality of checking units are used for sampling signals of an end socket of relay protection logic and sending the sampled signals to a processor; a checking database is arranged in the processor; when the plurality of inspection units sample signals of the end of the relay protection logic, the processor receives the sampling signals sent by the inspection units and extracts the main transformer protection logic port corresponding to the voltage pulse signals in the check database according to the voltage pulse signals in the sampling signals; and the processor takes the received actual outlet time signal as the actual outlet time of the corresponding main transformer protection logic port. The relay protection logic calibration device realizes automatic identification and matching of the logic ports, improves the efficiency, can simultaneously realize quick identification and detection of all the logic ports, and greatly saves the labor cost.
Description
Technical Field
The invention relates to an electrical engineering measurement technology, in particular to a relay protection logic checking device.
Background
In the protection verification of important equipment such as a bus differential, a main transformer, 220 kV line protection and the like, the verification of the outlet logic is complicated by using a traditional method for measuring the voltage of each outlet pressure plate, and the actual outlet time cannot be detected except for the action time on a protection device.
Meanwhile, in the prior art, each time of port detection, an operator is required to insert a detection contact into a port to be detected, the type or the serial number name of the port to be detected is manually recorded, and only one group of ports to be detected can be tested, so that the efficiency is low.
Disclosure of Invention
The invention aims to solve the technical problems that only one group of ports to be tested can be tested in the prior art, the efficiency is low, and the relay protection logic calibration device is provided to solve the problems.
The invention is realized by the following technical scheme:
the relay protection logic checking device comprises a processor and a plurality of checking units; the plurality of test units are used for sampling signals of the end socket of the relay protection logic and sending the sampled signals to the processor; the sampling signal comprises an actual outlet time signal and a voltage pulse signal; a check database is arranged in the processor; the checking database is provided with a corresponding mapping relation between the voltage pulse signals and a main transformer protection logic port;
when the plurality of inspection units sample signals of the end of the relay protection logic, the processor receives the sampling signals sent by the inspection units and extracts the main transformer protection logic port corresponding to the voltage pulse signals in the check database according to the voltage pulse signals in the sampling signals; and the processor takes the received actual outlet time signal as the actual outlet time of the corresponding main transformer protection logic port.
When the relay protection logic is applied, the detection unit is used for carrying out direct signal acquisition on the relay protection logic, belongs to the prior art, and the specific working principle is not repeated, but when the signal acquisition is carried out, the detection unit carries out signal sampling on the end head of the relay protection logic, and the end head of the relay protection logic comprises a high-pressure side subsection, a medium-pressure side subsection, a low-pressure side subsection and a non-electric end of a low-pressure side outlet pressing plate; after detection, two signals can be obtained, one is an outlet time signal recorded when a high-backup re-voltage lock is performed through the detection unit and an overcurrent action is performed, and the other is a received voltage pulse signal; the inventor finds that the received voltage pulse signals are different for different logic ports, so a check database is arranged in the processor, the check database is used for identifying different logic ports, and the processor receives the voltage pulse signals and matches the logic ports through the check database, so that the logic ports detected by the checking unit are identified. By arranging the equipment, the invention realizes automatic identification and matching of the logic ports, not only improves the efficiency, but also can simultaneously realize quick identification and detection of all the logic ports, and greatly saves the labor cost.
Further, when the voltage pulse signal received by the processor cannot find the main transformer protection logic port matched with the voltage pulse signal in the checking database, the checking unit corresponding to the voltage pulse signal is marked as a fault.
Further, when the end of the relay protection logic detected by the inspection unit marked as a fault is an end which is not recorded in the verification database, the voltage pulse signal detected by the inspection unit and the main transformer protection logic port are used as a new corresponding mapping relation to be added into the verification database.
When the method is applied, the unidentified port can be generally directly marked as a detection unit fault, but a new port can appear during system upgrading, and the new port can be directly added into a database through manual judgment to complete the function expansion of the whole device, so that the applicability of the system is improved.
Furthermore, the voltage pulse signals and the corresponding mapping relation of the main transformer protection logic ports are in a one-to-one corresponding relation.
The relay protection logic verification method comprises the following steps:
the plurality of inspection units are used for sampling signals of the end heads of the relay protection logic and sending the sampled signals to the processor; the sampling signal comprises an actual outlet time signal and a voltage pulse signal;
setting a checking database in the processor; the checking database is provided with a corresponding mapping relation between the voltage pulse signals and a main transformer protection logic port;
when the plurality of inspection units sample signals of the end of the relay protection logic, the processor receives the sampling signals sent by the inspection units and extracts the main transformer protection logic port corresponding to the voltage pulse signals in the check database according to the voltage pulse signals in the sampling signals; and the processor takes the received actual outlet time signal as the actual outlet time of the corresponding main transformer protection logic port.
Further, when the voltage pulse signal received by the processor cannot find the main transformer protection logic port matched with the voltage pulse signal in the checking database, the checking unit corresponding to the voltage pulse signal is marked as a fault.
Further, when the end of the relay protection logic detected by the inspection unit marked as a fault is an end which is not recorded in the verification database, the voltage pulse signal detected by the inspection unit and the main transformer protection logic port are used as a new corresponding mapping relation to be added into the verification database.
Furthermore, the voltage pulse signals and the corresponding mapping relation of the main transformer protection logic ports are in a one-to-one corresponding relation.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the relay protection logic calibration device realizes automatic identification and matching of the logic ports, improves the efficiency, can simultaneously realize quick identification and detection of all the logic ports, and greatly saves the labor cost.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of the structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
As shown in fig. 1, the relay protection logic verification apparatus of the present invention includes a processor and a plurality of verification units; the plurality of test units are used for sampling signals of the end socket of the relay protection logic and sending the sampled signals to the processor; the sampling signal comprises an actual outlet time signal and a voltage pulse signal; a check database is arranged in the processor; the checking database is provided with a corresponding mapping relation between the voltage pulse signals and a main transformer protection logic port;
when the plurality of inspection units sample signals of the end of the relay protection logic, the processor receives the sampling signals sent by the inspection units and extracts the main transformer protection logic port corresponding to the voltage pulse signals in the check database according to the voltage pulse signals in the sampling signals; and the processor takes the received actual outlet time signal as the actual outlet time of the corresponding main transformer protection logic port.
In the implementation of this embodiment, the inspection unit is a device for performing direct signal acquisition on the relay protection logic, which belongs to the prior art, and the specific working principle is not described here again, but during signal acquisition, the inspection unit performs signal sampling on the end of the relay protection logic, and the end of the relay protection logic includes the non-electric end of the high-pressure side segment, the medium-pressure side segment, the low-pressure side segment, and the low-pressure side outlet pressure plate; after detection, two signals can be obtained, one is an outlet time signal recorded when a high-backup re-voltage lock is performed through the detection unit and an overcurrent action is performed, and the other is a received voltage pulse signal; the inventor finds that the received voltage pulse signals are different for different logic ports, so a check database is arranged in the processor, the check database is used for identifying different logic ports, and the processor receives the voltage pulse signals and matches the logic ports through the check database, so that the logic ports detected by the checking unit are identified. By arranging the equipment, the invention realizes automatic identification and matching of the logic ports, not only improves the efficiency, but also can simultaneously realize quick identification and detection of all the logic ports, and greatly saves the labor cost.
To further illustrate the working process of this embodiment, when the voltage pulse signal received by the processor cannot find a main transformer protection logic port matching with the voltage pulse signal in the checking database, the checking unit corresponding to the voltage pulse signal is marked as a fault.
To further explain the working process of this embodiment, when the end of the relay protection logic detected by the checking unit marked as a fault is an end that is not recorded in the checking database, the voltage pulse signal detected by the checking unit and the main transformer protection logic port are added to the checking database as a new corresponding mapping relationship.
In the implementation of this embodiment, the unidentified port may be generally directly marked as a detection unit fault, but a new port may appear during system upgrade, and at this time, the new port may be directly added to the database through manual judgment to complete the function expansion of the entire device, thereby improving the applicability of the system.
To further illustrate the working process of this embodiment, the voltage pulse signal and the corresponding mapping relationship of the main transformer protection logic port are in a one-to-one correspondence relationship.
The relay protection logic verification method comprises the following steps:
the plurality of inspection units are used for sampling signals of the end heads of the relay protection logic and sending the sampled signals to the processor; the sampling signal comprises an actual outlet time signal and a voltage pulse signal;
setting a checking database in the processor; the checking database is provided with a corresponding mapping relation between the voltage pulse signals and a main transformer protection logic port;
when the plurality of inspection units sample signals of the end of the relay protection logic, the processor receives the sampling signals sent by the inspection units and extracts the main transformer protection logic port corresponding to the voltage pulse signals in the check database according to the voltage pulse signals in the sampling signals; and the processor takes the received actual outlet time signal as the actual outlet time of the corresponding main transformer protection logic port.
To further illustrate the working process of this embodiment, when the voltage pulse signal received by the processor cannot find a main transformer protection logic port matching with the voltage pulse signal in the checking database, the checking unit corresponding to the voltage pulse signal is marked as a fault.
To further explain the working process of this embodiment, when the end of the relay protection logic detected by the checking unit marked as a fault is an end that is not recorded in the checking database, the voltage pulse signal detected by the checking unit and the main transformer protection logic port are added to the checking database as a new corresponding mapping relationship.
To further illustrate the working process of this embodiment, the voltage pulse signal and the corresponding mapping relationship of the main transformer protection logic port are in a one-to-one correspondence relationship.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The relay protection logic checking device is characterized by comprising a processor and a plurality of checking units; the plurality of test units are used for sampling signals of the end socket of the relay protection logic and sending the sampled signals to the processor; the sampling signal comprises an actual outlet time signal and a voltage pulse signal; a check database is arranged in the processor; the checking database is provided with a corresponding mapping relation between the voltage pulse signals and a main transformer protection logic port;
when the plurality of inspection units sample signals of the end of the relay protection logic, the processor receives the sampling signals sent by the inspection units and extracts the main transformer protection logic port corresponding to the voltage pulse signals in the check database according to the voltage pulse signals in the sampling signals; and the processor takes the received actual outlet time signal as the actual outlet time of the corresponding main transformer protection logic port.
2. The relay protection logic verification device according to claim 1, wherein when the voltage pulse signal received by the processor fails to find a main transformer protection logic port matching the voltage pulse signal in the verification database, the verification unit corresponding to the voltage pulse signal is marked as a fault.
3. The relay protection logic verification apparatus according to claim 2, wherein when the end of the relay protection logic detected by the verification unit marked as a fault is an end not recorded in the verification database, the voltage pulse signal detected by the verification unit and the main transformer protection logic port are added to the verification database as a new mapping relationship.
4. The relay protection logic verification device according to claim 1, wherein the mapping relationship between the voltage pulse signal and the main transformer protection logic port is a one-to-one correspondence relationship.
5. The relay protection logic verification method is characterized by comprising the following steps:
the plurality of inspection units are used for sampling signals of the end heads of the relay protection logic and sending the sampled signals to the processor; the sampling signal comprises an actual outlet time signal and a voltage pulse signal;
setting a checking database in the processor; the checking database is provided with a corresponding mapping relation between the voltage pulse signals and a main transformer protection logic port;
when the plurality of inspection units sample signals of the end of the relay protection logic, the processor receives the sampling signals sent by the inspection units and extracts the main transformer protection logic port corresponding to the voltage pulse signals in the check database according to the voltage pulse signals in the sampling signals; and the processor takes the received actual outlet time signal as the actual outlet time of the corresponding main transformer protection logic port.
6. The method according to claim 5, wherein when the voltage pulse signal received by the processor fails to find a main transformer protection logic port matching the voltage pulse signal in the checking database, the checking unit corresponding to the voltage pulse signal is marked as a fault.
7. The method according to claim 6, wherein when the end of the relay protection logic detected by the checking unit marked as a fault is an end not recorded in the checking database, the voltage pulse signal detected by the checking unit and the main transformer protection logic port are added to the checking database as a new mapping relationship.
8. The method according to claim 5, wherein the mapping relationship between the voltage pulse signal and the protection logic port of the main transformer is a one-to-one correspondence relationship.
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| CN201911190770.6A CN110824352B (en) | 2019-11-28 | 2019-11-28 | Relay protection logic checking device and method |
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| CN201911190770.6A CN110824352B (en) | 2019-11-28 | 2019-11-28 | Relay protection logic checking device and method |
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| CN110824352B CN110824352B (en) | 2021-11-23 |
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2019
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