CN210401586U - Transformer substation relay calibrating device and system - Google Patents
Transformer substation relay calibrating device and system Download PDFInfo
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- CN210401586U CN210401586U CN201920503222.3U CN201920503222U CN210401586U CN 210401586 U CN210401586 U CN 210401586U CN 201920503222 U CN201920503222 U CN 201920503222U CN 210401586 U CN210401586 U CN 210401586U
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Abstract
The application relates to a transformer substation relay calibrating installation and system, wherein, transformer substation relay calibrating installation includes: a relay test interface; the relay test interface is used for respectively connecting a power supply end and an action contact end of the relay; a state quantity acquisition circuit; the input end of the state quantity acquisition circuit is connected with the relay test interface; a voltage regulating power supply module; the output end of the voltage-regulating power supply module is connected with the relay test interface; a power supply acquisition circuit; the power supply acquisition circuit is connected with the output end of the voltage-regulating power supply module; a first processor; the first processor is respectively connected with the power supply acquisition circuit, the control end of the voltage-regulating power supply module and the output end of the state quantity acquisition circuit; a second processor; the second processor is connected with the first processor. The method and the device can automatically detect the tested relay, simplify the detection process and improve the detection efficiency.
Description
Technical Field
The application relates to the technical field of transformer substation detection, in particular to a transformer substation relay calibrating device and a transformer substation relay calibrating system.
Background
The transformer substation is a place for transforming, concentrating and distributing the voltage and the current of electric energy, and in order to ensure the normal working operation of the transformer substation, the transformer substation is regularly pre-tested and checked through the requirement. The relays are important components of the transformer substation, and the types of the relays in the transformer substation are numerous and the number of test lines is large.
In the implementation process, the inventor finds that at least the following problems exist in the conventional technology: traditionally, the relay in the transformer substation is detected, wiring detection is usually performed on the relay through manual operation, the detection process is complex, and the detection efficiency is low.
SUMMERY OF THE UTILITY MODEL
Therefore, the transformer substation relay calibrating device and the transformer substation relay calibrating system are needed to be provided aiming at the problems that the traditional method for detecting the relay in the transformer substation is complex in detection process and low in detection efficiency.
In order to achieve the above object, the embodiment of the utility model provides a transformer substation relay calibrating installation is provided, include:
a relay test interface; the relay test interface is used for respectively connecting a power supply end and an action contact end of the relay;
a state quantity acquisition circuit; the input end of the state quantity acquisition circuit is connected with the relay test interface;
a voltage regulating power supply module; the output end of the voltage-regulating power supply module is connected with the relay test interface;
a power supply acquisition circuit; the power supply acquisition circuit is connected with the output end of the voltage-regulating power supply module;
a first processor; the first processor is respectively connected with the power supply acquisition circuit, the control end of the voltage-regulating power supply module and the output end of the state quantity acquisition circuit;
a second processor; the second processor is connected with the first processor.
In one embodiment, the power acquisition circuit comprises an analog signal conditioning circuit connected with the output end of the voltage-regulating power module, a signal transmission isolation circuit connected with the first processor, and an analog-to-digital conversion circuit connected between the analog signal conditioning circuit and the signal transmission isolation circuit.
In one embodiment, the system further comprises a first isolation circuit connected between the first processor and the control terminal of the voltage regulating power supply module.
In one embodiment, the relay testing device further comprises a second isolation circuit connected between the relay testing interface and the input end of the state quantity acquisition circuit.
In one embodiment, the power supply system further comprises a power supply module which is respectively connected with the first processor, the second processor, the power acquisition circuit and the voltage-regulating power module.
In one embodiment, the power supply module comprises a battery pack, an inverter power module connected with the battery pack, a system power module connected with the battery pack and an isolation power module connected with the battery pack;
the inverter power supply module is connected with the voltage-regulating power supply module; the system power supply module is respectively connected with the first processor and the second processor; the isolation power supply module is connected with the power supply acquisition circuit.
In one embodiment, the battery pack is a lithium ion battery pack.
In one embodiment, the system further comprises a human-computer interaction device, a memory and a communication interface which are respectively connected with the second processor;
the human-computer interaction device comprises an input device and a display device which are respectively connected with the second processor.
In one embodiment, the method further comprises connecting the second processor.
In one embodiment, the first processor is an FPGA processor; the second processor is an ARM processor.
On the other hand, the embodiment of the utility model provides a transformer substation relay verification system is still provided, including remote terminal to and connect remote terminal's as above-mentioned arbitrary transformer substation relay calibrating installation.
One of the above technical solutions has the following advantages and beneficial effects:
the relay test interface is respectively connected with a power supply end of the relay and an action contact end of the relay, the size of a power supply signal output by the voltage-regulating power supply module is controlled by the first processor, and the output power supply signal can be transmitted to the power supply end of the relay by the voltage-regulating power supply module through the relay test interface, so that the action contact end of the relay generates action state change; the power supply acquisition circuit can acquire a power supply signal input into the relay through the relay test interface; the state quantity acquisition circuit can acquire the state quantity of the relay through the relay test interface, and the first processor can transmit the readable power supply signal and the state quantity to the second processor; the second processor can obtain whether the tested relay meets the testing requirements or not according to the power supply signal and the state quantity, the relay can be directly tested without disconnecting the original connecting wire on the relay when the relay is tested on the transformer substation site, the possibility of wiring error after repeated disconnection and rewiring is avoided, the testing process is simplified, the testing efficiency is improved, and the possibility of manual error is greatly reduced.
Drawings
Fig. 1 is a schematic diagram of a first structure of a substation relay verification device in one embodiment;
FIG. 2 is a schematic diagram of an embodiment of a power harvesting circuit;
FIG. 3 is a second schematic diagram of a substation relay verification device in one embodiment;
FIG. 4 is a third schematic diagram of a substation relay verification device in one embodiment;
fig. 5 is a fourth structural diagram of the substation relay verification apparatus in one embodiment;
fig. 6 is a schematic structural diagram of a substation relay verification system in one embodiment.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the traditional relay testing process in the transformer substation, more workers are usually required to cooperate, and manual operation is easy to make mistakes if manual recording is carried out; the power line and the action contact line need to be disconnected from the relay, the line on the relay is disconnected and then connected with the test line for testing, and the power line and the action contact line are connected well after the test is finished, so that the work is complicated and the efficiency is extremely low. The types of the relays of the transformer substation are various, the manufacturers and the models of the relays are different, and each test interface is different, so that the types of tools required for wire disconnecting are various, and the testers are troublesome to carry; traditional testing arrangement (like relay protection test bench) is bulky and heavy, needs a plurality of test personnel to carry together, wastes time and energy.
In the transformer substation relay calibration device provided by the application, the relay test interface is respectively connected with the power supply end of the relay and the action contact end of the relay, the size of the power supply signal output by the voltage-regulating power supply module is controlled by the first processor, and then the output power supply signal can be transmitted to the power supply end of the relay by the voltage-regulating power supply module through the relay test interface, so that the action contact end of the relay generates action state change; the power supply acquisition circuit can acquire a power supply signal output by the voltage-regulating power supply module and transmit the acquired power supply signal to the first processor; the state quantity acquisition circuit can acquire the state quantity of the relay through the relay test interface and transmit the acquired state quantity to the first processor; the first processor can transmit the received power supply signal and the state quantity to the second processor; the second processor can further obtain whether the tested relay meets the test requirements or not according to the power supply signals and the state quantity, so that the tested relay can be automatically verified, the detection process is simplified, and the detection efficiency is improved.
In one embodiment, as shown in fig. 1, there is provided a substation relay verification apparatus, including:
a relay test interface 110; the relay test interface 110 is used for connecting a power supply end and an action contact end of the relay respectively;
a state quantity acquisition circuit 120; the input end of the state quantity acquisition circuit 120 is connected with the relay test interface 110;
a voltage-regulating power supply module 130; the output end of the voltage-regulating power supply module 130 is connected with the relay test interface 110;
a power acquisition circuit 160; the power acquisition circuit 160 is connected with the output end of the voltage-regulating power module 130;
a first processor 140; the first processor 140 is respectively connected to the power supply acquisition circuit 160, the control terminal of the voltage regulation power supply module 130 and the output terminal of the state quantity acquisition circuit 120;
a second processor 150; the second processor 150 is connected to the first processor 140.
The relay test interface 110 may include a plurality of connection terminals, and each connection terminal of the relay test interface 110 may be configured to be correspondingly connected to a power terminal and an action contact terminal of a relay to be tested; for example, the relay test interface 110 can be connected to the terminals of the relay under test via the test clips without disconnecting the control lines originally connected to the relay under test; in one example, the relay test interface 110 can accommodate terminals of various types of relays. The state quantity acquisition circuit 120 can be used for monitoring the action state of the action contact end of the relay, and if the action state exists, the state quantity change data acquired by the state quantity acquisition circuit 120 can change; for example, the operating state of the relay may be an open state or a closed state, and when the operating state of the relay changes, the state quantity acquired by the state quantity acquisition circuit 120 also changes. The voltage-regulating power supply module 130 can be used for supplying power to the relay to be tested, and the voltage-regulating power supply module 130 can regulate the size change of an output power supply signal according to the control of the first processor 140; in one example, the voltage regulation range of the voltage regulation power supply module 130 is 0 to 240 volts, the minimum voltage regulation step is 1mV (millivolts), and the power is 200W.
The power acquisition circuit 160 may be configured to convert analog power data input to the relay under test into digital power data and transmit the digital power data to the first processor 140; in one example, the power harvesting circuit 160 may be used to input a voltage signal and a current signal for the relay under test. The first processor 140 can be used to control the magnitude and variation of the power signal output by the voltage-regulating power module 130; it can also be used to read the power signal of the power acquisition circuit 160 and read the state quantity acquired by the state quantity acquisition circuit 120; and may also be used to transmit the read power signals and state quantities to the second processor 150. The second processor 150 is configured to receive the power signal and the state quantity transmitted by the first processor 140, and know whether the relay under test meets the test requirement according to the power signal and the state quantity.
Specifically, the first processor 140 is respectively connected to the second processor 150, the output terminal of the state quantity acquisition circuit 120 and the control terminal of the voltage-regulating power supply module 130; the output end of the voltage-regulating power supply module 130 is connected with the relay test interface 110, and the input end of the state quantity acquisition circuit 120 is connected with the relay test interface 110; the power harvesting circuit 160 is coupled between the first processor 140 and the output of the regulated power supply module 130. When the relay is tested on the transformer substation site, the relay test interface 110 can be respectively connected with a power supply end of the relay and an action contact end of the relay, the size of a power supply signal output by the voltage-regulating power supply module 130 is controlled by the first processor 140, and then the output power supply signal can be transmitted to the power supply end of the relay by the voltage-regulating power supply module 130 through the relay test interface 110, so that the action contact end of the relay generates action state change; the power supply acquisition circuit 160 may acquire the power supply signal output by the voltage-regulating power supply module 130 and transmit the acquired power supply signal to the first processor 140; the state quantity acquisition circuit 120 may acquire the state quantity of the relay through the relay test interface 110 and transmit the acquired state quantity to the first processor 140; the first processor 140 may further transmit the received power signal and the state quantity to the second processor 150, and the second processor 150 processes the power signal and the state quantity to obtain whether the tested relay meets the test requirement, thereby automatically verifying the tested relay.
According to the transformer substation relay calibration device, when the relay is tested on the transformer substation site, the original connecting wire on the relay does not need to be disconnected, the relay can be directly tested, the possibility of connection error after repeated disconnection and rewiring is avoided, the test process is simplified, the test efficiency is improved, and the possibility of manual error is greatly reduced.
It should be noted that the transformer substation relay calibrating device provided by the application can be compatible with relay tests of different models, a special test tool does not need to be configured on the relay, the tested relay can be connected to a relay test interface only by a test wire and a test clamp during the test, and then the original wiring of the relay does not need to be disconnected, the calibration of the tested relay can be automatically carried out, so that the time is saved, the test efficiency is improved, the wiring error caused by the connection and disconnection is avoided, and the misoperation of the whole transformer substation is caused.
In one embodiment, as shown in fig. 2, the power acquisition circuit 160 includes an analog signal conditioning circuit 162 coupled to the output of the voltage regulator power module 130, a signal transmission isolation circuit 164 coupled to the first processor 140, and an analog-to-digital conversion circuit 166 coupled between the analog signal conditioning circuit 162 and the signal transmission isolation circuit 164.
Specifically, the analog signal conditioning circuit 162 may be configured to adjust the input analog power signal to a suitable amplitude and transmit the adjusted conditioning signal to the analog-to-digital conversion circuit 166. Analog-to-digital conversion circuitry 166 may be used to convert the conditioned signal to a digital signal and transmit the digital signal to the first processor 140 through the signal transmission isolation circuitry 164. The signal transmission isolation circuit 164 can perform an isolation function, and isolate the power acquisition circuit 160 from the first processor 140, thereby improving the anti-interference capability and safety of the device.
In one embodiment, as shown in fig. 3, there is provided a substation relay verification apparatus, including a relay test interface 110, a state quantity acquisition circuit 120, a voltage regulation power supply module 130, a first processor 140, a second processor 150 and a power supply acquisition circuit 160; also included is a first isolation circuit 170 connected between the first processor 140 and the control terminal of the regulated power supply module 130.
The first isolation circuit 170 may cut off a path of noise interference through the isolation device, thereby achieving an effect of suppressing the noise interference. The first isolation circuit 170 may be used to isolate the first processor 140 from the regulated power supply module 130.
Specifically, based on the first isolation circuit 170 being connected between the first processor 140 and the control end of the voltage-regulating power supply module 130, the first isolation circuit 170 can isolate strong current from weak current, so as to prevent strong current signals of the voltage-regulating power supply module 130 from interfering with weak current signals of the first processor 140, thereby effectively preventing the occurrence of accidents such as improper operation, reducing the probability of device damage, and ensuring the personal safety of testers.
In one embodiment, as shown in fig. 3, a second isolation circuit 180 is further included that is connected between the relay test interface 110 and the input of the state quantity acquisition circuit 120.
The second isolation circuit 180 can cut off the path of noise interference through the isolation component, thereby achieving the effect of suppressing noise interference. The second isolation circuit 180 may be used to isolate the state quantity acquisition circuit 120 from the relay test interface 110.
Specifically, based on the second isolation circuit 180 being connected between the state quantity acquisition circuit 120 and the relay test interface 110, the second isolation circuit 180 can isolate strong current from weak current, so as to prevent strong current signals of the relay from interfering with weak current signals of the state quantity acquisition circuit 120, and further prevent strong current signals of the relay from interfering with weak current signals of the first processor 140, thereby reducing the probability of device damage and ensuring the personal safety of testers.
In one embodiment, as shown in fig. 3, a power supply module 190 is further included, which is connected to the first processor 140, the second processor 150, the power acquisition circuit 160, and the voltage regulation power module 130, respectively.
The power supply module 190 can be used to provide power to the whole device. Based on the power supply module 190, the first processor 140, the second processor 150, the power acquisition circuit 160 and the voltage regulation power module 130 are respectively connected, and then the power can be normally supplied to the first processor 140, the second processor 150, the power acquisition circuit 160 and the voltage regulation power module 130, so that the first processor 140, the second processor 150, the power acquisition circuit 160 and the voltage regulation power module 130 are normally started to work.
In one particular embodiment, as shown in FIG. 3, the power supply module 190 includes a battery pack 192, an inverter power module 194 coupled to the battery pack 192, a system power module 196 coupled to the battery pack 192, and an isolated power module 198 coupled to the battery pack 192. The inverter power supply module 194 is connected with the voltage-regulating power supply module 130; the system power supply module 196 is respectively connected with the first processor 140 and the second processor 150; the isolated power module 198 is coupled to the power harvesting circuit 160.
The battery pack 192 may be formed by connecting a plurality of battery cells in series, and the battery pack 192 may be a rechargeable battery pack; for example, the battery pack 192 may be a lithium ion battery pack. In one example, the amount of power stored by the battery pack 192 allows the entire device to operate continuously for 8 hours, easily meeting the test requirements of a tester for a day. The lithium battery power supply is not easily influenced by field test environment, if an alternating current 220V power supply exists on the field, a wire winding disc does not need to be arranged, and the lithium battery power supply has the advantages of safety, reliability, portability and the like. The inverter power module 194 can convert the low-voltage direct current of the battery pack into high-voltage alternating current, so that the voltage can be increased, the subsequent voltage-regulating power module is isolated from the battery pack, strong current and weak current are separated, and the working reliability, safety and accuracy of the whole device can be improved. The system power module 196 may be used to convert the dc power from the battery pack to dc power of an appropriate voltage level to power the first processor 140 and the second processor 150. The isolated power module 198 may be used to convert the dc power from the battery pack to dc power of an appropriate voltage level for powering the power harvesting circuitry 160. In one example, a portion of the power supply of the power harvesting circuitry 160 may be powered by the isolated power module 198 and another portion may be powered by the system power module 196.
Specifically, through setting up the group battery power supply, avoided the scene to need external power source repeatedly or carry the trouble of heavy wire reel, the device is light and handy portable, makes things convenient for the tester to carry and goes to places such as transformer substation and test.
In one specific embodiment, as shown in fig. 3, the isolated power module 198 may also convert the dc power from the battery 192 to a suitable dc voltage and provide power to the first and second isolation circuits 170 and 180, respectively.
In a specific embodiment, the voltage-regulating power supply module can also convert the high-voltage alternating current output by the inverter power supply module into the numerical control direct current capable of regulating voltage, and the voltage change is controlled and regulated by the first processor. The voltage-regulating power supply module can also comprise a short-circuit protection circuit, an overcurrent protection circuit, an undervoltage protection circuit, an overvoltage protection circuit and the like, and can effectively prevent the device and the relay from being damaged due to artificial reasons (such as wrong connection of a test wire).
In one embodiment, as shown in fig. 4, there is provided a substation relay verification apparatus, including a relay test interface 110, a state quantity acquisition circuit 120, a voltage regulation power supply module 130, a first processor 140, a second processor 150, and a power supply acquisition circuit 160; further comprises a human-computer interaction device 210 and a memory 220 respectively connected with the second processor 150.
The human-computer interaction device 210 refers to an input/output device for establishing contact and exchanging information between a human and a processing device. The memory 220 can be used for storing test data (such as state quantity, power signals and the like) of the device, can store all test data within 10 years, and when the same relay is tested, the device can conveniently fetch historical data tested by the relay for comparative analysis, so that the aging condition of the relay can be known in detail, the residual life of the relay can be estimated, and if the residual life is insufficient, the relay can be replaced to prevent risks in advance. In one example, memory 220 may be an SD card.
In a particular embodiment, the human interaction device 210 includes an input device 214 and a display device 212, each coupled to the second processor 150.
Wherein, the input device 214 can be used to input data for setting device parameters, etc.; for example, the input device 214 may be a key. The display device 212 may be used to display test data (e.g., state quantities, power signals, etc.); the display device 212 may be a liquid crystal display, for example.
In the transformer substation relay calibration device, the second processor is connected through the human-computer interaction device, so that a tester can set parameters and observe test data through the human-computer interaction device. The second processor is connected with the memory based on the memory, the second processor can compare, analyze and count the test historical data in the memory, know the aging condition of each relay in detail, estimate the residual life of each relay, and if the estimated residual life is insufficient, the relay can be replaced, so that the risk is prevented in advance, and the long-term safe and reliable operation of the whole power grid is ensured.
In one embodiment, as shown in FIG. 4, a communication interface 230 is also included to connect to the second processor 150.
In particular, communication interface 230 may be used to communicatively couple with external devices. Communication interface 230 may be a wireless communication interface, for example, communication interface 230 may be a portal that may be used for remote upgrades to devices and may also be used for remote uploads of data over a network. The communication interface 230 may also be a wired communication interface, for example, the communication interface 230 may be a USB (universal serial Bus) interface, and the USB interface may be inserted into an external memory such as a USB disk to export the test data report for easy archiving and saving.
In one embodiment, the first processor is an FPGA (Field-Programmable gate array) processor; the second processor is an Advanced RISC Machine (ARM) processor.
In one embodiment, as shown in fig. 5, the number of relay test interfaces is 2.
Specifically, the voltage-regulating power supply module can comprise 2 output ends, and the voltage-regulating power supply module can simultaneously output two paths of power supply signals; based on each output and each relay test interface one-to-one connection of voltage regulation power supply module, power acquisition circuit can connect each output of voltage regulation power supply module respectively, and state quantity acquisition circuit is connected with each relay test interface one-to-one, and each relay test interface is connected with each relay one-to-one. And then can test two relays simultaneously for efficiency of software testing doubles.
Furthermore, by testing the two relays simultaneously, the action contacts of the relays can be automatically identified in a normally open state or a normally closed state, the number of each action contact can be freely configured, and complete compatibility of more or less action contacts of the relays is realized.
In one embodiment, as shown in fig. 6, there is provided a substation relay verification system comprising a remote terminal 11, and a substation relay verification device 13 as described in any one of the above connected to the remote terminal 11.
The remote terminal 11 may be a personal computer, an industrial computer, a tablet computer, a notebook computer, and the like.
Specifically, based on the connection between the remote terminal 11 and the second processor 150 of the substation relay calibration device 13, the first processor 140 may transmit test data (such as power signals and state quantities) to the remote terminal 11, and the remote monitoring of the relay calibration process is realized through the remote terminal 11. The remote terminal 11 may also transmit software upgrade data to the second processor 150 to implement the software upgrade of the device.
In one example, the second processor may be connected to a remote terminal through a communication interface (e.g., a portal).
In the transformer substation relay verification system, the second processor, the output end of the state quantity acquisition circuit and the control end of the voltage regulation power supply module are respectively connected based on the first processor; the output end of the voltage-regulating power supply module is connected with the relay test interface, and the input end of the state quantity acquisition circuit is connected with the relay test interface; the power supply acquisition circuit is connected between the first processor and the output end of the voltage-regulating power supply module; the remote terminal is connected with the second processor. The first processor controls the size of the power supply signal output by the voltage-regulating power supply module, and the voltage-regulating power supply module can transmit the output power supply signal to the power supply end of the relay through the relay test interface, so that the action contact end of the relay generates action state change; the power supply acquisition circuit can acquire a power supply signal output by the voltage-regulating power supply module and transmit the acquired power supply signal to the first processor; the state quantity acquisition circuit can acquire the state quantity of the relay through the relay test interface and transmit the acquired state quantity to the first processor; the first processor can transmit the received power supply signal and the state quantity to the second processor; the second process can further obtain whether the tested relay meets the test requirements or not according to the power supply signals and the state quantity, so that the automatic verification of the tested relay is realized, the detection process is simplified, and the detection efficiency is improved; the second processor can also transmit the test data to the remote terminal, and the remote terminal can be used for remotely monitoring the relay verification process, so that the portability of the relay verification is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a transformer substation relay calibrating installation which characterized in that includes:
a relay test interface; the relay test interface is used for being connected with a power supply end and an action contact end of the relay respectively;
a state quantity acquisition circuit; the input end of the state quantity acquisition circuit is connected with the relay test interface;
a voltage regulating power supply module; the output end of the voltage-regulating power supply module is connected with the relay test interface;
a power supply acquisition circuit; the power supply acquisition circuit is connected with the output end of the voltage-regulating power supply module;
a first processor; the first processor is respectively connected with the power supply acquisition circuit, the control end of the voltage-regulating power supply module and the output end of the state quantity acquisition circuit;
a second processor; the second processor is connected with the first processor.
2. The substation relay verification device according to claim 1, wherein the power acquisition circuit comprises an analog signal conditioning circuit connected to the output of the voltage regulation power module, a signal transmission isolation circuit connected to the first processor, and an analog-to-digital conversion circuit connected between the analog signal conditioning circuit and the signal transmission isolation circuit.
3. The substation relay verification device according to claim 1, further comprising a first isolation circuit connected between the first processor and the control terminal of the voltage regulation power module.
4. The substation relay verification device of claim 1, further comprising a second isolation circuit connected between the relay test interface and the input of the state quantity acquisition circuit.
5. The transformer substation relay calibration device according to claim 1, further comprising a power supply module respectively connected to the first processor, the second processor, the power acquisition circuit and the voltage regulation power module.
6. The transformer substation relay verification device according to claim 5, wherein the power supply module comprises a battery pack, an inverter power module connected with the battery pack, a system power module connected with the battery pack, and an isolation power module connected with the battery pack;
the inverter power supply module is connected with the voltage-regulating power supply module; the system power supply module is respectively connected with the first processor and the second processor; the isolation power supply module is connected with the power supply acquisition circuit.
7. The substation relay verification device according to claim 6, wherein the battery pack is a lithium ion battery pack.
8. The transformer substation relay verification device according to claim 1, further comprising a human-computer interaction device, a memory and a communication interface respectively connected to the second processor;
the human-computer interaction device comprises an input device and a display device which are respectively connected with the second processor.
9. The substation relay calibration device according to any one of claims 1 to 8, wherein the first processor is an FPGA processor; the second processor is an ARM processor.
10. A substation relay verification system, comprising a remote terminal, and the substation relay verification apparatus according to any one of claims 1 to 9 connected to the remote terminal.
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| CN201920503222.3U CN210401586U (en) | 2019-04-15 | 2019-04-15 | Transformer substation relay calibrating device and system |
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| CN201920503222.3U CN210401586U (en) | 2019-04-15 | 2019-04-15 | Transformer substation relay calibrating device and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082674A (en) * | 2019-04-15 | 2019-08-02 | 贵州电网有限责任公司六盘水供电局 | Substation's relay calibrating installation and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082674A (en) * | 2019-04-15 | 2019-08-02 | 贵州电网有限责任公司六盘水供电局 | Substation's relay calibrating installation and system |
| CN110082674B (en) * | 2019-04-15 | 2024-03-08 | 贵州电网有限责任公司六盘水供电局 | Transformer substation relay calibrating device and system |
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