CN112670126B - Digital alternating-current voltage relay - Google Patents
Digital alternating-current voltage relay Download PDFInfo
- Publication number
- CN112670126B CN112670126B CN202011497217.XA CN202011497217A CN112670126B CN 112670126 B CN112670126 B CN 112670126B CN 202011497217 A CN202011497217 A CN 202011497217A CN 112670126 B CN112670126 B CN 112670126B
- Authority
- CN
- China
- Prior art keywords
- module
- information processing
- electrically connected
- self
- acquisition module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000010365 information processing Effects 0.000 claims abstract description 64
- 230000002457 bidirectional effect Effects 0.000 claims abstract 2
- 238000012545 processing Methods 0.000 claims description 11
- 239000000941 radioactive substance Substances 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Abstract
The invention relates to the technical field of relays, and discloses a digital alternating-current voltage relay which comprises a microcontroller, an information acquisition module and an information processing module, wherein the microcontroller is in bidirectional connection with the information acquisition module, the information processing module and an execution module, the output end of the information acquisition module is respectively and electrically connected with the input ends of the information processing module and the microcontroller, and the input end of the information processing module is electrically connected with the output ends of the microcontroller and the information acquisition module. According to the invention, the self-checking acquisition module and the self-checking information processing unit detect the armature resetting device before the control acquisition module and the control information processing unit perform safe control action on the circuit each time, so that the armature resetting device is prevented from being damaged and not found, the situation that the circuit cannot be protected when the circuit is in fault is avoided, and the safety of the relay is improved.
Description
Technical Field
The invention relates to the technical field of relays, in particular to a digital alternating-current voltage relay.
Background
A voltage relay is an electronic control device having a control system (also known as an input loop) and a controlled system (also known as an output loop), commonly used in automatic control circuits, which in effect are "reclosers" that use a smaller current to control a larger current. Therefore, the circuit plays roles of automatic regulation, safety protection, circuit switching and the like. The device is mainly used for relay protection devices of generators, transformers and transmission lines and is used as a starting element for overvoltage protection or low-voltage blocking. Digital measurement relay. The relay is a single-function relay or a multifunctional comprehensive protection relay with split and simplified functions. The digital circuit design is adopted, so that the protection function of various single-function relays can be realized, the data display function of the digital display meter is realized, the visualization of measurement and setting values is realized, the qualitative and quantitative effects are realized, and the intellectualization and networking of products can be realized.
The relay plays a role of a regulating circuit in the circuit, the output loop of the digital relay comprises an outlet relay playing a role of execution, the outlet relay is the last-stage output of the relay protection device and the safety automatic device, and the relay is a special intermediate relay which directly sends a tripping command to the circuit breaker after the action, is also called a tripping relay and is usually acted by a fast-acting electromagnetic intermediate relay or a reed relay. The action principle of the electromagnetic intermediate relay is as follows: when the exciting quantity of the relay coil is equal to or larger than the action value of the relay coil, the armature is attracted to the electromagnet, and meanwhile, the armature presses the movable contact spring plate, so that the contact is connected, disconnected or switched on a controlled circuit. When the coil of the relay is deenergized or the excitation amount is reduced to be smaller than the return value, the armature and the contact piece return to the original positions under the action of the return spring. In the action process, the spring is easy to generate elastic fatigue after being deformed for a long time and a plurality of times to cause damage to the outlet relay, but the existing digital relay cannot detect the circuit of the digital relay in the use process, so that information cannot be acquired in time and an alarm cannot be given out when the outlet relay is damaged, and an external circuit cannot play a role in regulation when dangers occur.
Disclosure of Invention
Aiming at the defects of the prior digital voltage relay in the use process, the invention provides a digital alternating voltage relay which has the advantage of self-detection and solves the problem that the circuit cannot be regulated due to the damage of the digital relay in the prior art.
The invention provides the following technical scheme: the utility model provides a digital alternating current voltage relay, includes microcontroller, information acquisition module and information processing module, microcontroller and information acquisition module, information processing module and execution module all two-way connection, information acquisition module's output respectively with information processing module and microcontroller's input electric connection, information processing module's input and microcontroller and information acquisition module's output electric connection, information processing module's output respectively with microcontroller and execution module's input electric connection, execution module's input respectively with microcontroller and information processing module's output electric connection, execution module's output is connected with export relay and alarm respectively.
Preferably, the information acquisition module comprises a self-checking acquisition module and a control acquisition module, a delayer is connected between the self-checking acquisition module and the control acquisition module, and the self-checking acquisition module is electrically connected with an armature resetting device.
Preferably, the armature resetting device is made of insulating materials, a sliding plug is connected inside the armature resetting device in a sliding mode, an inner cavity of the armature resetting device is divided into a first air cavity and a second air cavity by the sliding plug, an electric plate group I and an electric plate group II which are located in the first air cavity and the second air cavity are respectively arranged on the inner wall of the armature resetting device in a paired mode, the electric plate group I and the electric plate group II are connected with the self-checking acquisition module, a connecting rod is fixedly connected to the top surface of the sliding plug, penetrates through the inner portion of the armature resetting device and is connected to one end of an armature, and the connecting position of the connecting rod connected with the armature resetting device is sealed by a rubber ring.
Preferably, the first air cavity and the second air cavity are respectively internally provided with radioactive substances, and the electric plate group I and the electric plate group II are metal conducting plates.
Preferably, the self-checking collection module comprises a power module, a voltage adjustment module and a storage unit, wherein the output end of the power module is electrically connected with the input end of the voltage adjustment module, the output end of the voltage adjustment module is electrically connected with the electric plate group I and the electric plate group II on one side respectively, and the electric plate group I and the electric plate group II on the other side are electrically connected to the input end of the storage unit.
Preferably, the information processing module comprises a self-checking information processing unit, a control information processing unit and a control unit, wherein the input end of the self-checking information processing unit is electrically connected with the output end of the storage unit, the input end of the control information processing unit is electrically connected with the input end of the control acquisition module, and the output ends of the self-checking information processing unit and the control information processing unit are both connected to the input end of the control unit.
Preferably, the self-checking information processing unit comprises a self-checking information processor, a current processing unit and a current difference calculating unit, wherein the input end of the self-checking information processor is electrically connected with the output end of the storage unit, the input end and the output end of the current processing unit are respectively electrically connected with the output end of the self-checking information processor and the input end of the current difference calculating unit, and the output end of the current difference calculating unit is electrically connected to the input end of the control unit.
Preferably, the execution module comprises an execution processor and a current controller, wherein the input end of the execution processor is electrically connected with the output end of the control unit, the output end of the execution processor is electrically connected with the input end of the current controller, and the output end of the current controller is electrically connected with the output relay and the input end of the alarm.
The invention has the following beneficial effects:
1. according to the invention, the self-checking acquisition module and the self-checking information processing unit detect the armature resetting device before the control acquisition module and the control information processing unit perform safe control action on the circuit each time, so that the armature resetting device is prevented from being damaged and not found, the situation that the circuit cannot be protected when the circuit is in fault is avoided, and the safety of the relay is improved.
2. According to the invention, the compression expansion performance and the air pressure difference of the air in the armature resetting device are utilized to reset the armature, so that the traditional spring resetting mode is abandoned, the service life of the relay is prolonged, the air in the armature resetting device is detected regularly, and the failure rate of the relay is greatly reduced.
Drawings
FIG. 1 is a system block diagram of the present invention;
FIG. 2 is a block diagram of a self-test acquisition module according to the present invention;
FIG. 3 is a system block diagram of a self-checking information processing unit of the present invention;
FIG. 4 is a system block diagram of an execution module of the present invention;
fig. 5 is a schematic structural view of the armature resetting device of the present invention.
In the figure: 1. a microcontroller; 2. an information acquisition module; 201. a self-checking acquisition module; 2010. a power module; 2011. a voltage adjustment module; 2012. a storage unit; 202. a control acquisition module; 3. an information processing module; 301. a self-checking information processing unit; 3010. a self-checking information processor; 3011. a current processing unit; 3012. a current difference calculation unit; 302. a control information processing unit; 303. a control unit; 4. an execution module; 401. an execution processor; 402. a current controller; 5. an outlet relay; 6. an alarm; 7. a delay device; 8. an electric plate group I; 9. an electric plate group II; 10. armature resetting means; 1001. a first air chamber; 1002. a second air chamber; 11. a sliding plug; 12. a connecting rod; 13. a radioactive material.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, a digital ac voltage relay, an information acquisition module 2 and an information processing module 3, wherein a microcontroller 1 is connected with the information acquisition module 2, the information processing module 3 and an execution module 4 in two directions, the output end of the information acquisition module 2 is connected with the input ends of the information processing module 3 and the microcontroller 1 respectively, the input end of the information processing module 3 is connected with the output ends of the microcontroller 1 and the information acquisition module 2 respectively, the output end of the information processing module 3 is connected with the input ends of the microcontroller 1 and the execution module 4 respectively, the input end of the execution module 4 is connected with the output ends of the microcontroller 1 and the information processing module 3 respectively, and the output end of the execution module 4 is connected with an outlet relay 5 and an alarm 6 respectively. The information acquisition module 2, the information processing module 3 and the execution module 4 are used for carrying out independent information transmission, and simultaneously transmitting the information to the microcontroller 1, and the microcontroller 1 is used for storing and retrieving the information so as to be convenient for searching the detection information.
The information acquisition module 2 includes a self-checking acquisition module 201 and a control acquisition module 202, the control acquisition module 202 is used for acquiring voltage information and judging whether the voltage is normal, a delayer 7 is connected between the self-checking acquisition module 201 and the control acquisition module 202, in the prior art, the voltage information acquired by the control acquisition module 202 is acquired according to a certain frequency, then in the scheme, the frequency of the self-checking acquisition module 201 can be consistent with the frequency of the information acquired by the control acquisition module 202, but the acquisition time point of the self-checking acquisition module 201 is more advanced than the acquisition time point of the control acquisition module 202, namely, the data acquisition of the self-checking acquisition module 201 is performed first, the data acquisition of the control acquisition module 202 is performed after the delay of the delayer 7, then the relay performs a self-checking judgment before each control operation, the self-checking acquisition module 201 is electrically connected with an armature resetting device 10, the armature resetting device 10 is used for resetting an armature, a traditional resetting mode is that a spring is used, but the spring is easy to generate elastic fatigue after multiple deformations, and therefore the scheme replaces the traditional spring with the following structure.
The armature resetting device 10 is made of insulating materials, a sliding plug 11 is connected in the armature resetting device 10 in a sliding manner, the sliding plug 11 divides the inner cavity of the armature resetting device 10 into a first air cavity 1001 and a second air cavity 1002, the top surface of the sliding plug 11 is fixedly connected with a connecting rod 12, the connecting rod 12 is sealed with the armature resetting device 10 by using a rubber ring, the connecting rod 12 penetrates through the inner part of the armature resetting device 10 and is connected with one end of an armature, air is filled in the first air cavity 1001 and the second air cavity 1002, so that under normal conditions, the air pressure in the second air cavity 1002 is smaller than the air pressure in the first air cavity 1001, the sliding plug 11 pulls the connecting rod 12 downwards under the action of air pressure difference in the second air cavity 1002 and the first air cavity 1001, so that the armature connected with the connecting rod 12 is lifted upwards to be separated from a contact, when current is introduced into a coil below the armature, the magnetic field generated by the current attracts the armature downwards to be connected with the contact, and the connecting rod 12 is moved upwards along the inner wall of the armature resetting device 10, and reset and contact of the armature can be realized; however, due to the movement of the sliding plug 11 and the connecting rod 12, the gas in the first gas cavity 1001 and the second gas cavity 1002 can escape along with the repeated movement, when the gas pressure difference in the first gas cavity 1001 and the second gas cavity 1002 is not in a normal range, the gas escape in the first gas cavity 1001 and the second gas cavity 1002 is indicated to cause that the mechanism for resetting does not meet the safety requirement, and potential safety hazards easily occur when the mechanism for resetting is used continuously, at the moment, an alarm is required to remind a user to replace the relay, the armature reset device 10 is a reset mechanism designed on an outlet relay, the inner wall of the armature reset device 10 is respectively provided with an electric plate group I8 and an electric plate group II 9 which are positioned in the first gas cavity 1001 and the second gas cavity 1002, the electric plate group I8 and the electric plate group II 9 are respectively arranged on the symmetrical inner walls of the armature reset device 10 in pairs, the electric plate group I8 and the electric plate group II 9 are connected with the self-checking acquisition module 201, pulse voltages are applied to the two ends of the electric plate group I8 and the electric plate group II 9 in the first gas cavity 1001 and the second gas cavity 1002 through the self-checking acquisition module 201, and then the electric charges are not acquired by the self-checking module 201, and the electric charges in the second gas cavity 1002 are not detected; as gas escapes, the volume decreases, the density of gas within first gas chamber 1001 and second gas chamber 1002 decreases, the amount of ionized air ions decreases, and the current acquired by self-test acquisition module 201 decreases at the same voltage.
The self-checking collection module 201 includes a power module 2010, a voltage adjustment module 2011 and a storage unit 2012, wherein an output end of the power module 2010 is electrically connected with an input end of the voltage adjustment module 2011, an output end of the voltage adjustment module 2011 is respectively electrically connected with an electric plate group i 8 and an electric plate group ii 9 on one side, the voltage adjustment module 2011 is used for adjusting currents flowing into the electric plate group i 8 and the electric plate group ii 9, in one data collection, the voltage adjustment module 2011 needs to apply voltage to the electric plate group i 8 and the electric plate group ii 9 twice, breakdown voltage and normal voltage, the breakdown voltage is used for ionizing gas, the normal voltage is used for powering on the electric plate group i 8 and the electric plate group ii 9, and a circuit of an ionized gas passage is collected, so that ionization amounts of the gas in the first gas cavity 1001 and the second gas cavity 1002 are judged under a single pulse voltage, and accordingly volume differences of the gas in the first gas cavity 1001 and the second gas cavity 1002 are calculated, and whether a reset mechanism of an outlet relay in the digital relay is safe or not is judged is electrically connected with the input end 2012 of the storage unit.
In the above scheme, the air is ionized by applying voltage to the electric plate group i 8 and the electric plate group ii 9, which has the defect of high energy consumption, the first air cavity 1001 and the second air cavity 1002 are respectively provided with the radioactive substance 13, the electric plate group i 8 and the electric plate group ii 9 are metal conductive sheets, and the gas can be ionized by the radioactivity of the radioactive substance 13, but the ionization of the gas by the radioactive substance 13 is continuous, namely, the total electron quantity of the air in the first air cavity 1001 and the second air cavity 1002 is measured in the continuous irradiation process of the radioactive substance 13 by the ionized electrons; in addition, a highly accurate voltmeter may be used to directly measure the voltage difference in first air cavity 1001 and second air cavity 1002.
The information processing module 3 includes a self-checking information processing unit 301, a control information processing unit 302 and a control unit 303, where an input end of the self-checking information processing unit 301 is electrically connected with an output end of the storage unit 2012, an input end of the control information processing unit 302 is electrically connected with an input end of the control acquisition module 202, output ends of the self-checking information processing unit 301 and the control information processing unit 302 are both connected to an input end of the control unit 303, a delayer is also connected between the self-checking information processing unit 301 and the control information processing unit 302, the self-checking information is processed first, then the control information is processed, when a processing result of the self-checking information processing unit 301 is no, the control information processing unit 302 does not process the control information, the control unit 303 transmits information about no to the execution module 4, the execution module 4 controls the action of the exit relay 5 and the alarm 6, and when a result of the self-checking information processing unit 301 is yes, the control unit 303 waits for a processing result of the control information processing unit 302. The self-checking information processing unit 301 includes a self-checking information processor 3010, a current processing unit 3011, and a current difference calculating unit 3012, where an input end of the self-checking information processor 3010 is electrically connected to an output end of the storage unit 2012, an input end and an output end of the current processing unit 3011 are respectively electrically connected to an output end of the self-checking information processor 3010 and an input end of the current difference calculating unit 3012, an output end of the current difference calculating unit 3012 is electrically connected to an input end of the control unit 303, the self-checking information processor 3010 decompresses data in the storage unit 2012 and sends the decompressed data to the current processing unit 3011, and the current is converted into a current value which is convenient to calculate through rectification, filtering, etc. of the current processing unit 3011, and then a value difference is calculated through the current difference calculating unit 3012, when two paths of current differences connected by the electric board group i 8 and ii 9 are within a normal range, the armature resetting device 10 is indicated to be safe, and when the current difference exceeds the normal range, the armature resetting device 10 is indicated to be unsafe; the self-checking information processing unit 301 receives and processes the information of the self-checking acquisition module 201, the control information processing unit 302 receives and processes the information of the control acquisition module 202, the processed results are summarized to the control unit 303, as long as the result of the self-checking information processing unit 301 is no, the result of the control unit 303 is no, the control unit 303 transmits the information to the execution module 4, the execution module 4 comprises an execution processor 401 and a current controller 402, the input end of the execution processor 401 is electrically connected with the output end of the control unit 303, the output end of the execution processor 401 is electrically connected with the input end of the current controller 402, the output end of the current controller 402 is electrically connected with the output relay 5 and the input end of the alarm 6, when the information of the control unit 303 received by the execution processor 401 is no, the execution processor 401 is respectively electrified to the coil of the output relay 5 through the current controller 402, the output relay 5 is started to act, the voltage of the circuit is disconnected, and meanwhile, the alarm is prompted through the alarm 6.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a digital alternating voltage relay, includes microcontroller (1), information acquisition module (2) and information processing module (3), its characterized in that: the microcontroller (1) is in bidirectional connection with the information acquisition module (2), the information processing module (3) and the execution module (4), the output end of the information acquisition module (2) is respectively and electrically connected with the input ends of the information processing module (3) and the microcontroller (1), the input end of the information processing module (3) is electrically connected with the output ends of the microcontroller (1) and the information acquisition module (2), the output end of the information processing module (3) is respectively and electrically connected with the input ends of the microcontroller (1) and the execution module (4), the input end of the execution module (4) is respectively and electrically connected with the output ends of the microcontroller (1) and the information processing module (3), and the output end of the execution module (4) is respectively connected with the outlet relay (5) and the alarm (6);
the information acquisition module (2) comprises a self-checking acquisition module (201) and a control acquisition module (202), a delayer (7) is connected between the self-checking acquisition module (201) and the control acquisition module (202), and the self-checking acquisition module (201) is electrically connected with an armature resetting device (10);
the armature resetting device (10) is made of insulating materials, a sliding plug (11) is connected inside the armature resetting device (10) in a sliding manner, the sliding plug (11) divides an inner cavity of the armature resetting device (10) into a first air cavity (1001) and a second air cavity (1002), an electric plate group I (8) and an electric plate group II (9) which are positioned in the first air cavity (1001) and the second air cavity (1002) are respectively arranged on the inner wall of the armature resetting device (10) in a sliding manner, the electric plate group I (8) and the electric plate group II (9) are respectively arranged on the symmetrical inner wall of the armature resetting device (10) in pairs, the electric plate group I (8) and the electric plate group II (9) are connected with the self-checking acquisition module (201), a connecting rod (12) is fixedly connected to the top surface of the sliding plug (11), the connecting rod (12) penetrates through the inner part of the armature resetting device (10) and is connected to one end of the armature, and the connecting rod (12) is sealed with the armature resetting device (10) through a rubber ring;
the self-checking acquisition module (201) comprises a power supply module (2010), a voltage adjustment module (2011) and a storage unit (2012), wherein the output end of the power supply module (2010) is electrically connected with the input end of the voltage adjustment module (2011), the output end of the voltage adjustment module (2011) is electrically connected with an electric plate group I (8) and an electric plate group II (9) on one side respectively, and the electric plate group I (8) and the electric plate group II (9) on the other side are electrically connected to the input end of the storage unit (2012);
the information processing module (3) comprises a self-checking information processing unit (301), a control information processing unit (302) and a control unit (303), wherein the input end of the self-checking information processing unit (301) is electrically connected with the output end of the storage unit (2012), the input end of the control information processing unit (302) is electrically connected with the input end of the control acquisition module (202), and the output ends of the self-checking information processing unit (301) and the control information processing unit (302) are both connected to the input end of the control unit (303).
2. A digital ac voltage relay according to claim 1, wherein: the first air cavity (1001) and the second air cavity (1002) are respectively provided with a radioactive substance (13), and the electric plate group I (8) and the electric plate group II (9) are metal conductive sheets.
3. The digital AC voltage relay according to claim 1, wherein the self-test information processing unit (301) comprises a self-test information processor (3010), a current processing unit (3011) and a current difference calculating unit (3012), wherein an input end of the self-test information processor (3010) is electrically connected with an output end of the storage unit (2012), an input end and an output end of the current processing unit (3011) are respectively electrically connected with an output end of the self-test information processor (3010) and an input end of the current difference calculating unit (3012), and an output end of the current difference calculating unit (3012) is electrically connected to an input end of the control unit (303).
4. The digital AC voltage relay according to claim 1, wherein the execution module (4) comprises an execution processor (401) and a current controller (402), the input end of the execution processor (401) is electrically connected with the output end of the control unit (303), the output end of the execution processor (401) is electrically connected with the input end of the current controller (402), and the output end of the current controller (402) is electrically connected with the output end of the outlet relay (5) and the input end of the alarm (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011497217.XA CN112670126B (en) | 2020-12-17 | 2020-12-17 | Digital alternating-current voltage relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011497217.XA CN112670126B (en) | 2020-12-17 | 2020-12-17 | Digital alternating-current voltage relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112670126A CN112670126A (en) | 2021-04-16 |
| CN112670126B true CN112670126B (en) | 2023-08-25 |
Family
ID=75404834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011497217.XA Active CN112670126B (en) | 2020-12-17 | 2020-12-17 | Digital alternating-current voltage relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112670126B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5877569A (en) * | 1995-04-20 | 1999-03-02 | Brose Fahrzeugteile Gmbh & Co. Kg | Drive device with an electric motor and a relay switching the motor current |
| CN203674100U (en) * | 2014-01-25 | 2014-06-25 | 林华 | Anti-shake type relay |
| CN204179643U (en) * | 2014-11-07 | 2015-02-25 | 平顶山煤业（集团）铁路运输处劳动服务公司 | A kind of three-phase variable frequency motor phase-lacking protective device with self-checking function |
| CN204290292U (en) * | 2014-12-31 | 2015-04-22 | 北京恒源利通电力技术有限公司 | Self-powered static number relay |
| CN104701807A (en) * | 2015-03-19 | 2015-06-10 | 西电通用电气自动化有限公司 | Relay protecting device exit relay actuating coil self-detecting module and method |
| KR101576253B1 (en) * | 2014-08-08 | 2015-12-10 | 한국건설기술연구원 | Apparatus and method for power supply of rse |
| CN207051731U (en) * | 2017-05-31 | 2018-02-27 | 北京广利核系统工程有限公司 | Digital output passage self diagnosis detection means |
| CN108736456A (en) * | 2018-07-18 | 2018-11-02 | 杭州新融方科技有限公司 | Power distribution network protective relaying device |
-
2020
- 2020-12-17 CN CN202011497217.XA patent/CN112670126B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5877569A (en) * | 1995-04-20 | 1999-03-02 | Brose Fahrzeugteile Gmbh & Co. Kg | Drive device with an electric motor and a relay switching the motor current |
| CN203674100U (en) * | 2014-01-25 | 2014-06-25 | 林华 | Anti-shake type relay |
| KR101576253B1 (en) * | 2014-08-08 | 2015-12-10 | 한국건설기술연구원 | Apparatus and method for power supply of rse |
| CN204179643U (en) * | 2014-11-07 | 2015-02-25 | 平顶山煤业（集团）铁路运输处劳动服务公司 | A kind of three-phase variable frequency motor phase-lacking protective device with self-checking function |
| CN204290292U (en) * | 2014-12-31 | 2015-04-22 | 北京恒源利通电力技术有限公司 | Self-powered static number relay |
| CN104701807A (en) * | 2015-03-19 | 2015-06-10 | 西电通用电气自动化有限公司 | Relay protecting device exit relay actuating coil self-detecting module and method |
| CN207051731U (en) * | 2017-05-31 | 2018-02-27 | 北京广利核系统工程有限公司 | Digital output passage self diagnosis detection means |
| CN108736456A (en) * | 2018-07-18 | 2018-11-02 | 杭州新融方科技有限公司 | Power distribution network protective relaying device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112670126A (en) | 2021-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2320859C (en) | Electrical fault detection system | |
| US10712312B2 (en) | Flexible magnetic field coil for measuring ionic quantity | |
| CN201892729U (en) | Electric service life monitoring device of HGIS (hybrid gas insulated switchgear) circuit breaker | |
| CN110231550B (en) | Experimental simulation device and method for arc discharge fault of gas insulated electrical equipment | |
| CN109036964B (en) | Control method for preventing contact adhesion, storage medium, control device and relay | |
| CN110857869A (en) | Power transformer on-line state monitoring and fault diagnosis system | |
| CN108226770A (en) | A kind of circuit breaker failure diagnostic method | |
| CN103823179A (en) | Non-contact spatial high-frequency high-voltage circuit breaker operation characteristics measurement method | |
| CN102834994A (en) | Method and apparatus for suppressing an inrush current of a transformer | |
| CN103311065A (en) | Arc chuteless dc current interruptor | |
| US10036727B2 (en) | System and method to predict a usable life of a vacuum interrupter in the field | |
| CN112670126B (en) | Digital alternating-current voltage relay | |
| CN202815178U (en) | Device for testing a contactor | |
| CN207663016U (en) | Alternating current filter high-voltage circuit-breaker switching on-off time on-line monitoring system | |
| CN106124946B (en) | The control coil turn-to-turn insulation fault detection means and detection method of high-voltage circuitbreaker | |
| AU720524B2 (en) | Power-line trip circuit | |
| CN204857638U (en) | Prepayment circuit breaker arc initiation device | |
| CN107102260A (en) | A kind of full-automatic switching pilot system of capacitor bank | |
| CN205720379U (en) | A kind of novel all-fiber current transformator | |
| CN210805643U (en) | Vacuum circuit breaker running-in device | |
| CN209102873U (en) | The prior-warning device of high pressure GIS switching point voltage mutual inductor ferromagnetic resonance | |
| CN102593813A (en) | Intelligent comprehensive resonance elimination device | |
| CN209486281U (en) | A kind of three-phase mutual inductor simulation linked network detection system | |
| Ming-Cai et al. | Design of transformer iron core multi-point earthing automatic protection control system | |
| CN220650785U (en) | Low-voltage heavy-current wire quality safety detection experimental device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231201 Address after: 323000 Zhongdong Road 699, Liandu District, Lishui City, Zhejiang Province Patentee after: LISHUI POWER SUPPLY COMPANY OF STATE GRID ZHEJIANG ELECTRIC POWER Co.,Ltd. Address before: No. 92, baihewan, Nanlong Town, Nanbu County, Nanchong City, Sichuan Province Patentee before: Li Guirong |