CN211377569U - Outdoor installation full voltage level integration transformer protection device - Google Patents
Outdoor installation full voltage level integration transformer protection device Download PDFInfo
- Publication number
- CN211377569U CN211377569U CN201921494438.4U CN201921494438U CN211377569U CN 211377569 U CN211377569 U CN 211377569U CN 201921494438 U CN201921494438 U CN 201921494438U CN 211377569 U CN211377569 U CN 211377569U
- Authority
- CN
- China
- Prior art keywords
- cpu
- module
- protection device
- transformer protection
- protection
- 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
- 238000009434 installation Methods 0.000 title claims abstract description 12
- 230000010354 integration Effects 0.000 title description 4
- 230000003287 optical effect Effects 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 9
- 239000013307 optical fiber Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 230000003245 working effect Effects 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 20
- 238000010586 diagram Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 5
- 241000272814 Anser sp. Species 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 239000011257 shell material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses an outdoor installation full voltage grade integrated transformer protection device, which comprises an input module and an output module, wherein the input module and the output module are respectively connected with a first CPU and a second CPU; the first CPU and the second CPU receive the input quantity collected by the input module and send instructions to the output module; the opening module receives the instructions of the first CPU and the second CPU, outputs opening amount and controls tripping and closing through the double CPU signal driving tripping loop. The utility model discloses a two CPU boards simultaneous workings realize two sets of electric volume protection AND gate protection export, and two CPU export interlocks are carried out in the export return circuit, only two CPU simultaneous actions, and the protection just exports the tripping operation, has improved transformer protection device's protection level.
Description
Technical Field
The utility model relates to an outdoor installation full voltage level integration transformer protection device belongs to power system relay protection technical field.
Background
The existing transformer protection device usually configures hardware of the device according to different voltage class requirements, and designs software matched with the hardware. Because the analog quantity and the switching value of each side of the transformer need to be collected, the analog quantity and the switching value of each side are led into the transformer protection device which is placed in a centralized mode through a long cable for transformer protection, the wiring of an electric outer loop of the transformer protection device of each voltage class is complex and different, and the universality, the configuration standardization and the flexibility are poor. Based on the current situation, the design cycle of the transformer protection device is long, the engineering investment is high, the transformer substation manages the protection device in a complicated manner, and the existing transformer protection device is low in protection level and cannot meet the requirements of a conventional transformer substation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome prior art's defect, provide an outdoor installation full voltage level integration transformer protection device, adopt two CPU boards simultaneous workings, realize two sets of electric volume protection AND gate protection export, two CPU export interlocks are carried out to the export return circuit, only two CPU simultaneous actions, and the protection just exports the tripping operation, has improved transformer protection device's protection level.
In order to solve the technical problem, the utility model provides an outdoor installation full voltage level integrated transformer protection device, which is characterized by comprising an opening module and an opening module, wherein the opening module and the opening module are respectively connected with a first CPU and a second CPU; the first CPU and the second CPU receive the input quantity collected by the input module and send instructions to the output module; the opening module receives the instructions of the first CPU and the second CPU, outputs opening amount and controls tripping and closing through the double CPU signal driving tripping loop.
Furthermore, the double-CPU signal driving tripping circuit comprises a first optical coupler and a second optical coupler, wherein the input end of the first optical coupler is connected with a first CPU driving signal, the input end of the second optical coupler is connected with a second CPU driving signal, the output end of the first optical coupler is connected with the input end of the tripping relay, and the output end of the tripping relay is connected with the input end of the second optical coupler.
Further, the opening amount acquired by the opening module is an externally input circuit breaker position.
Furthermore, the system also comprises an HMI (human machine interface) module and an FPGA (field programmable gate array) module, wherein the HMI module and the FPGA module are respectively connected with the first CPU and the second CPU.
Furthermore, the FPGA module and the HMI man-machine communication module are externally connected through a circular optical fiber connector.
Further, the power supply device further comprises a voltage current transformer, wherein the voltage current transformer is respectively connected with the first CPU and the second CPU, and the voltage current transformer is externally connected through a third circular electric connector.
The power supply module is respectively connected with the first CPU, the second CPU, the input module and the output module.
Furthermore, the opening module and the power supply module are both externally connected through a first circular electric connector,
furthermore, the opening module is externally connected through a second circular electric connector.
Further, still include the shell of rectangle box body, the shell material is the aluminum alloy, is equipped with the pilot lamp on the shell.
The utility model discloses the beneficial effect who reaches:
(1) the utility model discloses the protection data and the information of each branch road are all handled in a protection device. And the double CPU boards work simultaneously to realize the protection outlet of the double sets of electric quantity protection and door. The method and the device realize double AD sampling and double CPU parallel processing, an outlet loop realizes double CPU outlet interlocking, only the double CPUs act simultaneously, the outlet is protected to trip, and the protection level of the transformer protection device is improved.
(2) The utility model discloses direct mount can normal operating under the condition that does not have protection cell, the prefabricated storehouse of secondary, outdoor cabinet etc. and provide the protection in the switch yard or with the integrated installation of primary equipment, reduces transformer substation's building area, reduces the optical cable and uses.
(3) The utility model discloses protection level is high, externally adopts the special connector to connect, can realize plug-and-play, practices thrift debug time and human cost by a wide margin, and the secondary circuit is simplified, can put the change by whole when overhauing. Meanwhile, the performance of the protection device is improved, and the problems of loop crosstalk, multipoint grounding, distributed capacitance discharge and the like caused by long cable transmission signals are solved by local installation.
Drawings
FIG. 1 is a schematic block diagram of the present invention;
FIG. 2 is a schematic diagram of a dual CPU signal driven trip loop;
FIG. 3 is a transformer protector panel layout;
FIG. 4 is a schematic diagram of a transformer protector connector arrangement;
FIG. 5 is a schematic diagram of a transformer protection device power supply and access module connector core;
FIG. 6 is a schematic diagram of the fiber core of the optical fiber connector of the transformer protection device;
FIG. 7 is a schematic diagram of a transformer protection device with a modular connector core;
fig. 8 is a schematic diagram of a transformer protection device ac acquisition connector core.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, the outdoor installation full-voltage grade integrated transformer protection device comprises a first CPU, a second CPU, an FPGA module, an input module, an output module, a power module, an HMI man-machine communication module and a voltage current transformer, wherein the FPGA module, the input module, the output module, the HMI man-machine communication module and the voltage current transformer are respectively connected with the first CPU and the second CPU.
The power supply module is used for connecting an external direct-current power supply to supply power to each module; the opening module is used for receiving external opening amount and transmitting data to the first CPU and the second CPU for processing; the opening module is used for receiving the instructions of the first CPU and the second CPU, outputting opening amount and controlling tripping and closing through the double CPU signal driving tripping loop. The voltage current transformer is used for acquiring analog quantity of each side of the transformer; the first CPU and the second CPU are used for receiving the input quantity collected by the input module and sending an instruction to the output module; the input amount is a circuit breaker position signal; the first CPU and the second CPU are used for processing analog quantity and switching value, and transmitting the processed data to the FPGA module and the HMI man-machine communication module; the FPGA module is used for transmitting analog SV and GOOSE messages, and the analog SV and the GOOSE messages are transmitted by adopting 9-2 messages; the switching value (DI/DO) data is transmitted by adopting a GOOSE message; the HMI human-computer communication module is used for processing MMS messages.
As shown in fig. 2, the dual-CPU signal driven trip circuit includes a first optical coupler and a second optical coupler, an input end of the first optical coupler is connected to a first CPU driving signal, the first CPU driving signal provides +24V power for the trip coil, an input end of the second optical coupler is connected to a second CPU driving signal, the second CPU driving signal provides-24V power for the trip coil, an output end of the first optical coupler is connected to an input end of the trip relay, an output end of the trip relay is connected to an input end of the second optical coupler, and when the first CPU driving signal and the second CPU driving signal are triggered simultaneously, the trip coil can normally work.
As shown in fig. 3, the hardware of the device adopts a miniaturized and metal fully-sealed case structure, and further comprises a casing with a rectangular box body, wherein the casing is 100mm in height, 320mm in width and 450mm in length, and three indicator lights are arranged on the casing and respectively indicate operation, abnormity and action. When the protection is in normal operation, the operation lamp is lighted, when abnormal conditions such as PT disconnection, CT disconnection and the like occur in the protection, the abnormal lamp is lighted, and when the protection is tripped, the action lamp is lighted.
As shown in fig. 4, the device adopts the forms of a special electric connector and a special optical fiber connector, the external connection is realized through a prefabricated cable and a prefabricated optical cable, and the device is provided with 6 standard circular connectors and can be connected with an aviation plug. The 6 standard circular connectors are a first circular electrical connector a, a second circular electrical connector B, a third circular electrical connector C, and circular fiber connectors D, E and F, respectively.
As shown in fig. 5, the open-in module and the power module are connected to the outside through a first circular electrical connector, which has 16 fiber cores, and each fiber core is defined as shown in table 1. The fiber cores 1-2 are direct-current power supplies of the device, the fiber cores 3-15 are external switches (3 is a public end, and 4-15 are 6 groups of tripping switches), and the rest are standby switches.
TABLE 1 fiber core definition table for input module and power module
As shown in fig. 6, the open modules are connected to the outside through a second circular electrical connector, which has 37 fiber cores, and the definition of each fiber core is shown in table 2. Fiber cores 1-32 are tripping and closing nodes (4 groups of three-phase tripping, 2 single-phase tripping and 6 closing), and 33-35 are device fault warning and abnormal operation.
TABLE 2 fiber core definition table of open module
As shown in fig. 7, the HMI man-machine communication module and the FPGA module are connected to the outside through a circular fiber connector, and there are 16 sets of cores, and each set of cores is defined as shown in table 3. Fiber cores 1-2 are for time setting, fiber cores 3-6 are for MMS, SV, GOOSE receiving and sending, fiber cores 15-16 are for debugging communication setting, and the rest are spare fiber cores.
TABLE 3 HMI Man-machine communication Module and FPGA Module fiber core definition Table
As shown in fig. 8, the voltage-current transformers are externally connected through a third circular electrical connector, and each group of circular electrical connectors 24 includes a group of fiber cores, and the definition of each fiber core is shown in table 4.
TABLE 4 fiber core definition table of AC sampling module
According to the protection configuration requirements of the transformer with the voltage class of 110kV to 750kV shown in table 6, 16(4 groups of three-phase voltages, 2 single-phase voltages and 2 standby voltages) voltage alternating-current quantity acquisition channels are configured for the protection of the transformer according to the maximum side number of the transformer; the transformer protection is provided with 24(6 groups of three-phase current and 6 single-phase current) current alternating current quantity acquisition channels. The transformer protection device is provided with 3 24-core (16-core current with short circuit + 8-core voltage) alternating current modules, the voltage and current amount required to be collected by each voltage class transformer can be met, meanwhile, the 16-core (2-core power supply + 13-core open-in) open-in module and the 37-core open-out module which are arranged by the device can also meet the open-in amount and the open-out amount required by each voltage class transformer protection device, and the specific terminal definition is shown in table 5.
TABLE 5 definition of the conventional transformer access analog and input/output for transformer protection devices
TABLE 6 number of analog values connected to the conventional transformer of the transformer protection device of each voltage class
| Voltage class | Number of channels of access voltage | Number of channels of access |
| 110kV | ||
| 13 | 22 | |
| |
14 | 23 |
| 330kV | 11 | 20 |
| |
9 | 19 |
| |
12 | 24 |
The utility model discloses the protection data and the information of each branch road are all handled in a protection device. And the double CPU boards work simultaneously to realize the protection outlet of the double sets of electric quantity protection and door. The method realizes double AD sampling and double CPU parallel processing, the outlet loop realizes double CPU outlet interlocking, and the outlet trip is protected only by the simultaneous action of the double CPUs.
The embodiment is directly installed in a switch yard or integrally installed with primary equipment, and can normally operate under the condition of providing protection without a protection small chamber, a secondary prefabricated cabin, an outdoor cabinet and the like, so that the building area of a transformer substation is reduced, and the use of optical cables is reduced. Secondly, the device has high protection level, is externally connected by adopting a special connector, can realize plug and play, greatly saves debugging time and labor cost, simplifies a secondary circuit, and can be replaced by the whole device during maintenance. Meanwhile, the performance of the protection device is improved, and the problems of loop crosstalk, multipoint grounding, distributed capacitance discharge and the like caused by long cable transmission signals are solved by local installation.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (9)
1. An outdoor installation full-voltage grade integrated transformer protection device is characterized by comprising an opening module and an opening module, wherein the opening module and the opening module are respectively connected with a first CPU and a second CPU; the first CPU and the second CPU receive the input quantity collected by the input module and send instructions to the output module; the switching-off module receives the instructions of the first CPU and the second CPU, outputs switching-off quantity and controls switching-off and switching-on through a double-CPU signal driving tripping loop; the double-CPU signal driving tripping circuit comprises a first optical coupler and a second optical coupler, wherein the input end of the first optical coupler is connected with a first CPU driving signal, the input end of the second optical coupler is connected with a second CPU driving signal, the output end of the first optical coupler is connected with the input end of the tripping relay, and the output end of the tripping relay is connected with the input end of the second optical coupler.
2. The outdoor mounted full voltage class integrated transformer protection device according to claim 1, wherein the opening module collects an opening amount which is an externally input circuit breaker position.
3. The outdoor installation full-voltage-class integrated transformer protection device according to claim 1, further comprising an HMI (human machine interface) module and an FPGA (field programmable gate array) module, wherein the HMI module and the FPGA module are respectively connected with the first CPU and the second CPU.
4. The outdoor mounted full voltage class integrated transformer protection device according to claim 3, wherein the FPGA module and the HMI man-machine communication module are externally connected through a circular optical fiber connector.
5. The outdoor mounted full-voltage grade integrated transformer protection device according to claim 1, further comprising a voltage current transformer, wherein the voltage current transformer is respectively connected with the first CPU and the second CPU, and the voltage current transformer is externally connected through a third circular electric connector.
6. The outdoor mounted full voltage level integrated transformer protection device according to claim 1, further comprising a power module, wherein the power module is respectively connected with the first CPU, the second CPU, the input module and the output module.
7. The outdoor mounted full voltage class integrated transformer protection device according to claim 6, wherein the opening module and the power supply module are connected to the outside through a first circular electrical connector.
8. The outdoor mounted full voltage level integrated transformer protection device according to claim 1, wherein the opening module is externally connected through a second circular electrical connector.
9. The outdoor mounted full voltage level integrated transformer protection device according to claim 1, further comprising a casing of a rectangular box body, wherein the casing is made of aluminum alloy, and an indicator lamp is arranged on the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921494438.4U CN211377569U (en) | 2019-09-10 | 2019-09-10 | Outdoor installation full voltage level integration transformer protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921494438.4U CN211377569U (en) | 2019-09-10 | 2019-09-10 | Outdoor installation full voltage level integration transformer protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211377569U true CN211377569U (en) | 2020-08-28 |
Family
ID=72154308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921494438.4U Active CN211377569U (en) | 2019-09-10 | 2019-09-10 | Outdoor installation full voltage level integration transformer protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211377569U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180146A (en) * | 2020-09-10 | 2021-01-05 | 南京国电南自电网自动化有限公司 | Switching value sampling method and system for automatically identifying voltage class |
-
2019
- 2019-09-10 CN CN201921494438.4U patent/CN211377569U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180146A (en) * | 2020-09-10 | 2021-01-05 | 南京国电南自电网自动化有限公司 | Switching value sampling method and system for automatically identifying voltage class |
| CN112180146B (en) * | 2020-09-10 | 2024-05-28 | 南京国电南自电网自动化有限公司 | Switching value sampling method and system for automatic voltage class identification |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2666409C (en) | A mv or hv power distribution cubicle with integrated digital communication, and a multi-functional module for such a cubicle | |
| US20170214225A1 (en) | Interconnect and metering for renewables, storage and additional loads with electronically controlled disconnect capability for increased functionality | |
| EP4362277A2 (en) | Communication power supply system | |
| CN104348106A (en) | Combined intelligent low-voltage distribution JP cabinet | |
| CN204144926U (en) | A kind of arc light protective device | |
| CN211377370U (en) | Intelligent distributed power distribution terminal with communication and optical fiber differential protection functions | |
| CN211377569U (en) | Outdoor installation full voltage level integration transformer protection device | |
| CN111817191A (en) | Box-type substation for photovoltaic | |
| CN108429134A (en) | Plug and play first cabinet of each row | |
| CN108155590A (en) | A kind of intelligent modularized change | |
| CN201629565U (en) | Switch cabinet arc light protection system with compact structure | |
| CN210780123U (en) | Fully centralized monitoring protection device for electrical equipment of wind power booster station | |
| CN205195050U (en) | Cubical switchboard of reliable power supply | |
| CN203278057U (en) | Intelligent prefabricated transformer substation | |
| CN202737364U (en) | 35 kV no-one-entering modularization transformer station | |
| CN223427960U (en) | A junction box for connecting energy storage equipment and energy storage system | |
| CN217692634U (en) | Terminal block terminal | |
| CN112003069B (en) | Protection measurement and control device and system | |
| CN223744150U (en) | A single-wire structure and a double-sided electrical cabinet | |
| CN207853451U (en) | A kind of distributed local protection equipment for transformer | |
| CN222395253U (en) | A multi-way switch for a distribution box and its incoming line terminal structure | |
| CN204905742U (en) | Middling pressure looped netowrk vacuum circuit breaker cabinet | |
| Yao et al. | Design of Bubuchuan smart substation | |
| CN223273704U (en) | Rectifier switch cabinet, subway rectifier switch cabinet DC system and device | |
| CN222423218U (en) | Intelligent integrated protection device for low voltage switchgear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |