CN212209412U - Double-confirmation system for disconnecting switch position of transformer substation disconnecting switch based on micro switch - Google Patents
Double-confirmation system for disconnecting switch position of transformer substation disconnecting switch based on micro switch Download PDFInfo
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- CN212209412U CN212209412U CN202021073621.XU CN202021073621U CN212209412U CN 212209412 U CN212209412 U CN 212209412U CN 202021073621 U CN202021073621 U CN 202021073621U CN 212209412 U CN212209412 U CN 212209412U
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- isolator
- control device
- measurement
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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Abstract
The utility model discloses a two affirmation systems of isolator switch position of transformer substation based on micro-gap switch, the first micro-gap switch of switch transmits the switch position as first criterion to measuring and control device's basis in original electric mechanism on, newly increases two affirmation systems that produce the second criterion. By additionally arranging the second microswitch, when the disconnecting link is switched on or switched off in place, the mechanical structure drives the contacts of the double microswitches to be switched, the sensor uploads a position signal of the disconnecting link to the receiving device, a second criterion of the position of the disconnecting link is provided for the measurement and control device, and therefore the disconnecting link forms a double confirmation system. Utility model takes place the action back at isolator, fortune dimension personnel can accurately differentiate isolator divide-shut brake state, have submitted the rate of accuracy that equipment state differentiateed greatly, and the divide-shut brake state of differentiation isolator that can be effective quick provides the safety guarantee for realizing "a key in the same direction as accuse" operation of transformer substation's isolator state conversion.
Description
Technical Field
The utility model relates to a isolator field of transformer substation especially relates to two system of confirming of isolator knife-switch position of transformer substation based on micro-gap switch.
Background
The main form that the operation of switching over was carried out to the operation and maintenance personnel of transformation for a long time is manual ticket-holding, accomplishes the operation and the inspection to equipment gradually mutually in equipment is on the spot or monitored control system, and its time efficiency and security do not obtain the promotion of maximize, probably operate isolator divide-shut brake not in place, five prevent improper operations safety can not guarantee, and the work ticket is loaded down with trivial details.
At present, main equipment mechanisms of a transformer substation all adopt electric mechanisms, most of equipment is remotely operated at a monitoring background of the transformer substation, but a second criterion for confirming the position of a disconnecting link is lacked, and the actual position of a site still needs to be confirmed after the disconnecting link is operated.
In view of this, it is a technical problem to be solved in the art to quickly and accurately confirm the position of the disconnecting switch blade.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a two affirmation systems of isolator switch position of transformer substation based on micro-gap switch, a new isolator equipment divides switch-on position detection mode to it needs the loaded down with trivial details of artifical ticket checking field inspection to improve current switching operation.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
the utility model provides a two affirmation systems of isolator switch position of transformer substation based on micro-gap switch, includes the in-sequence control host computer, prevents the mistake host computer with measurement and control device and the intelligence that the in-sequence control host computer links to each other respectively, is provided with the first micro-gap switch that is used for detecting the switch position in the isolator, spacing micro-gap switch links to each other with measurement and control device, regards the switch position as first criterion transmission to measurement and control device, still includes the change over switch that is used for switching on-the-spot mode and long-range in-sequence control mode to and be used for detecting the secondary of switch position and confirm the subassembly, the subassembly is confirmed to the secondary and is linked to each other with measurement and control device, regards the switch position that.
Further, the secondary confirmation assembly comprises a second microswitch arranged in the isolating switch and used for detecting whether the switch of the disconnecting link is in place or not, a sensor connected with the second microswitch and a receiving device connected with the sensor; the receiving device is connected with the measurement and control device; the second microswitch transmits the switch-on and switch-off position of the disconnecting switch to the receiving device through the sensor; the receiving device is used for receiving the position of the disconnecting switch of the isolating switch, forming a second criterion and transmitting the second criterion to the measurement and control device; wherein the first micro-switch and the second micro-switch are non-homologous.
Further, the sensor is arranged at one end, close to the fixed contact, of the spring piece of the second micro switch.
Further, the sensor is a high-precision multi-axis attitude sensor combining a gyroscope, an accelerometer and a geomagnetic sensing sensor.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model discloses a two confirmation systems of isolator switch position in transformer substation of micro-gap switch establish the spacing micro-gap switch that micro-gap switch itself has and first micro-gap switch transmits the switch position to monitoring device through the remote signaling function promptly, form isolator's switch position and carry out on the basis of first criterion, be provided with the secondary and confirm the subassembly, realize confirming twice to the switch position, improved the rate of accuracy that the switch position was confirmed greatly, provide the safety guarantee for the key in the same direction as accuse of transformer substation. Meanwhile, the sequence control host and the intelligent anti-error host are additionally arranged to perform anti-error check, so that the safety of switching operation is further ensured.
(2) The utility model discloses a subassembly is confirmed to the secondary is provided with second micro-gap switch, sensor and receiving arrangement, and first micro-gap switch and second micro-gap switch non-homology, after the switch divide-shut brake put in place, mechanical arch can make the second micro-gap switch runner lift up or fall down, realizes that the spring leaf of second micro-gap switch drives the divide-shut brake who realizes and the static contact by the runner to realized the affirmation of switch position, formed the second and judged data transmission to monitoring device. The first criterion and the second criterion are used together to confirm the position of the knife switch, so that the switch of the knife switch is ensured to be in place.
(3) The utility model discloses newly increased change over switch for the switching of mode on the spot and long-range in the same direction as accuse mode, rotate long-range in the same direction as accuse mode when change over switch, can not operate on the spot, rotate the mode on the spot when change over switch, then can not remote operation, avoid the confusion of operation on the spot and remote operation, further prevent the maloperation.
Drawings
Fig. 1 is a schematic diagram of the system structure of the present invention.
Detailed Description
The present invention will be further described with reference to the following drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples.
Referring to fig. 1, a double-confirmation system for the disconnecting switch position of a transformer substation disconnecting switch based on a microswitch comprises a sequential control host, a measurement and control device and an intelligent anti-misoperation host which are respectively connected with the sequential control host, a first microswitch, a secondary confirmation assembly, a measurement and control device, a sequential control host and an intelligent anti-misoperation host, wherein the first microswitch is arranged in the disconnecting switch and used for detecting the disconnecting switch position, the secondary confirmation assembly is arranged in the disconnecting switch, the measurement and control device is connected with the first microswitch and the secondary confirmation assembly, the sequential control host is connected with the measurement and control device, and the intelligent anti. And the sequence control host initiates an operation instruction to generate an operation ticket, transmits the operation ticket instruction to the intelligent anti-error host through the station control layer network, and the intelligent anti-error host receives the operation ticket instruction to form an anti-error checking sequence for checking each step of the subsequent disconnecting switch position change.
The dual acknowledgement system also includes a switch for switching between the local mode and the remote compliance mode. When the change-over switch rotates to the remote sequential control mode, the operation can not be carried out on the spot, and when the change-over switch rotates to the on-spot mode, the remote operation can not be carried out, thereby avoiding the confusion between the on-spot operation and the remote operation and further preventing the misoperation.
And the first microswitch remotely signals the position of the disconnecting switch blade as a first criterion to be transmitted to the measurement and control device. The secondary confirmation component provides a second criterion of the position of the disconnecting link for the measurement and control device, the measurement and control device transmits the received first criterion and the received second criterion to the sequence control host, and the sequence control host and the intelligent anti-error host perform anti-error check.
The secondary confirmation assembly comprises a second microswitch, a sensor and a receiving device. The sensor is arranged at one end, close to the fixed contact, of the spring piece of the second microswitch, the receiving device is connected with the measurement and control device, the first microswitch and the second microswitch transmit the position of the disconnecting switch to the receiving device through the sensor, the receiving device receives a position signal of the disconnecting switch and forms a second criterion, and the second criterion is transmitted to the measurement and control device.
The first micro switch and the second micro switch are not homologous. When the knife switch is opened or closed in place, the mechanical protrusion on the rotating shaft can lift or fall the rotating wheel of the micro switch, the rotating wheel exerts force on the spring plate, and when the spring plate is displaced to a critical point, instantaneous action is generated, so that the spring plate touches the static contact, rapid disconnection or connection is realized, and the switching between the normally open node and the normally closed node of the second micro switch is further realized.
The isolating switch is additionally provided with a second microswitch, so that the second microswitch can realize node switching when the motor stops reversing, and a disconnecting link position signal is obtained, and a second criterion of the disconnecting link position is provided for the measurement and control device. The double micro switches determine the position of the knife switch, and further ensure that the disconnecting switch and the closing switch of the disconnecting switch are in place.
If the position of the isolating switch remotely signals the right combined transformer switch and the signal transmitted by the sensor received by the receiving device is in place, the isolating switch is confirmed to be in place; and if the position remote signaling of the isolating switch is switched from the switch-off state to the switch-on state and the signal transmitted by the attitude sensor and received by the receiving device is in the switch-on state, confirming that the isolating switch is in the switch-on state.
In the present embodiment, the sensor is a high-precision multi-axis attitude sensor combining a gyroscope, an accelerometer, and a geomagnetic sensing sensor.
The utility model discloses a two affirmation systems of isolator knife-switch position, through setting up micro-gap switch, attitude sensor and receiving arrangement, attitude sensor passes through RS-485 with isolator positional information transmission to receiving arrangement on the spot, receiving arrangement forms the second criterion after divide-shut brake position is differentiateed, and with the second criterion output passive contact to measuring and control device (conventional station) or on the spot device (intelligent station), a new isolator equipment divide-shut brake position monitoring mode has been realized, further guaranteed isolator's separating brake or combined floodgate and target in place, effective and quick differentiation isolator's divide-shut brake state, satisfy the most harsh EMC rank requirement, the interference killing feature is strong, protection level IP67, provide the safety guarantee for "a key sequence control" operation that realizes the conversion of transformer substation's isolator state.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not a limitation to the protection scope of the present invention, but all the changes made by adopting the design principle of the present invention and performing non-creative work on this basis should belong to the protection scope of the present invention.
Claims (4)
1. The utility model provides a two affirmation systems of isolator switch position of transformer substation based on micro-gap switch, includes the in-sequence control host computer, the measurement and control device and the intelligence that link to each other with the in-sequence control host computer respectively prevent mistake host computer, is provided with the first micro-gap switch that is used for detecting the switch position in the isolator, first micro-gap switch links to each other with measurement and control device, regards the switch position as first criterion transmission to measurement and control device, its characterized in that still includes the change over switch that is used for switching local mode and long-range in-sequence control mode to and be used for detecting the secondary of whether switch divide-shut brake put in place and confirm the subassembly, the secondary confirm the subassembly with measurement and control device links to each other, regards the switch position that detects as the second and judges data.
2. The micro-switch based double-confirmation system for the position of the disconnecting switch blade of the transformer substation is characterized in that the secondary confirmation assembly comprises a second micro-switch, a sensor and a receiving device, wherein the second micro-switch is arranged in the disconnecting switch and used for detecting whether the opening and closing of the disconnecting switch is in place or not, the sensor is connected with the second micro-switch, and the receiving device is connected with the sensor;
the receiving device is connected with the measurement and control device; the second microswitch transmits the switch-on and switch-off position of the disconnecting switch to the receiving device through the sensor; the receiving device is used for receiving the position of the disconnecting switch of the isolating switch, forming a second criterion and transmitting the second criterion to the measurement and control device;
wherein the first micro-switch and the second micro-switch are non-homologous.
3. The micro-switch based double confirmation system of the position of the disconnecting switch blade of the substation isolating switch according to claim 2, wherein the sensor is arranged at one end of the spring piece of the second micro-switch close to the static contact.
4. The system for double validation of microswitch-based substation isolating switch blade position according to claim 3, wherein the sensors are high precision multi-axis attitude sensors combined with gyroscopes, accelerometers and geomagnetic sensing sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021073621.XU CN212209412U (en) | 2020-06-11 | 2020-06-11 | Double-confirmation system for disconnecting switch position of transformer substation disconnecting switch based on micro switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021073621.XU CN212209412U (en) | 2020-06-11 | 2020-06-11 | Double-confirmation system for disconnecting switch position of transformer substation disconnecting switch based on micro switch |
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| Publication Number | Publication Date |
|---|---|
| CN212209412U true CN212209412U (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021073621.XU Expired - Fee Related CN212209412U (en) | 2020-06-11 | 2020-06-11 | Double-confirmation system for disconnecting switch position of transformer substation disconnecting switch based on micro switch |
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| CN (1) | CN212209412U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113096986A (en) * | 2021-05-11 | 2021-07-09 | 广西电网有限责任公司电力科学研究院 | Disconnecting and connecting position confirmation method and device for disconnecting switch |
-
2020
- 2020-06-11 CN CN202021073621.XU patent/CN212209412U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113096986A (en) * | 2021-05-11 | 2021-07-09 | 广西电网有限责任公司电力科学研究院 | Disconnecting and connecting position confirmation method and device for disconnecting switch |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201222 Termination date: 20210611 |