CN205941660U - Secondary interface device in transformer substation - Google Patents
Secondary interface device in transformer substation Download PDFInfo
- Publication number
- CN205941660U CN205941660U CN201620828199.1U CN201620828199U CN205941660U CN 205941660 U CN205941660 U CN 205941660U CN 201620828199 U CN201620828199 U CN 201620828199U CN 205941660 U CN205941660 U CN 205941660U
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- China
- Prior art keywords
- board card
- interface device
- secondary interface
- current sensor
- transformer substation
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- 238000004891 communication Methods 0.000 claims abstract description 14
- 230000003287 optical effect Effects 0.000 claims abstract description 4
- 238000004146 energy storage Methods 0.000 claims description 14
- 230000002159 abnormal effect Effects 0.000 claims description 9
- 230000009191 jumping Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000009977 dual effect Effects 0.000 claims 1
- 230000009471 action Effects 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000272814 Anser sp. Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model provides a secondary interface device in a transformer substation, which comprises a CPU communication board card, a current sensor interface board card, an input board card, an output board card and a power supply board card; the CPU communication board card is respectively connected with the current sensor interface board card, the input board card, the output board card and the power supply board card through an optical port Ethernet or an electrical port Ethernet; the current sensor board card is connected with the core-through current sensor; the access board card supports 60-way access; the outgoing board card supports double-node control output; the power supply board card supports 110V and 220V alternating current and direct current input and comprises a locking module, an alarming module and a standby opening module. Implement the utility model discloses an interior secondary interface device of transformer substation, it replaces traditional electromagnetic type relay, solves the intrinsic use shortcoming of electromagnetic type relay.
Description
Technical Field
The utility model relates to the field of electric power technology, especially, relate to an interior secondary interface device of transformer substation.
Background
In the existing transformer substation, the electromagnetic relays are mostly used for the switches, the disconnecting links and other operations and interlocking loops, and the following defects exist after the relays are reset by a plurality of layers:
the electromagnetic relay is influenced by the operating condition and the age limit, so that the contact jamming, insulation reduction, burning loss and the like are easily caused, and the reliability is difficult to continuously ensure;
the inherent time delay of the electromagnetic relay is increased possibly along with the increase of the operation life and the weakening of mechanical stress, and the influence on the reliability of the protection switch-off and switch-on is uncontrollable; potential fault points are increased through multi-layer re-operation of the relays, and the correct conduction of a loop can be influenced when any one layer of the relays fails;
in addition, the electromagnetic relay does not have the functions of monitoring and counting the switch on/off current, the switch on/off time and the energy storage pressing time of the switch, and is not beneficial to discovering potential hidden dangers of the switch;
for the conditions of disconnecting link, grounding switch control circuit disconnection or intermediate relay damage, etc., the electromagnetic relay can not monitor and send out alarm signals, and particularly, the condition of misoperation caused by relay insulation reduction can not be found in advance.
Because the operation life of the primary equipment is long, the aging of partial outdoor equipment is accelerated, the defects of high humidity and high salinity are more obvious, and the reliability of power supply is seriously influenced.
At present, an intelligent terminal used in a digital transformer substation only moves an operation box down to a primary equipment control cubicle, and operation and locking loops formed by electromagnetic relays, such as switches and disconnecting links, of primary equipment are not improved. The reliability and operational life of the entire primary equipment are reduced due to problems with the secondary loop attached, thereby affecting the equipment asset life cycle.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a secondary interface device in a transformer substation, which comprises a CPU communication board card, a current sensor interface board card, an input board card, an output board card and a power board card; wherein,
the CPU communication board card is used for realizing communication protocols of IEC61850 and IEC103 protocols and is respectively in physical connection with the current sensor interface board card, the input board card, the output board card and the power supply board card by adopting optical port Ethernet or electrical port Ethernet;
the current sensor board card is used for collecting current signals of a jumping ring, a combining ring and an energy storage motor, carrying out fixed value setting on the current signals, and then being used for a three-phase linkage switch mechanism or a split-phase switch mechanism and is also connected with a core-through current sensor;
the open board card supports 60-way open;
the outgoing board card supports double-node control output;
the power supply board card supports 110V and 220V alternating current and direct current input and comprises a locking module, an alarming module and a standby opening module.
And the secondary interface device in the transformer substation adopts a mode of connecting double contacts in series.
After the outgoing board card is started by the backboard and the board card is started by the two-stage power supply, the relay acts; the relay is arranged on the outgoing board card.
When the secondary interface device in the transformer substation is abnormal and has power failure, the power supply board card automatically locks the output board card through a backboard starting signal; and the secondary interface device in the transformer substation is automatically locked when the self-checking is abnormal, so that the relay is prevented from being wrongly exported.
Implement the utility model discloses an interior secondary interface device of transformer substation, it replaces traditional electromagnetic type relay, solves the intrinsic use shortcoming of electromagnetic type relay. Simultaneously link to each other with straight-through current sensor in the secondary interface device in the transformer substation, increase jump circle, close the monitoring function of circle, energy storage motor current, the utility model discloses an it is as an organic whole that secondary interface device collects intelligence antithetical couplet blocking function and on-line monitoring function in the transformer substation, can effectively overcome traditional relay return circuit trouble many, the undetectable shortcoming of trouble in the operation to the realization is detected the real-time state of primary equipment such as switch, simplifies the return circuit, simplifies the installation, improves the efficiency of carrying out the operation to primary equipment, improves the reliability of primary equipment operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a secondary interface device in a transformer substation provided by the present invention;
fig. 2 is a schematic diagram of a secondary interface device in a transformer substation for performing dual-node control output;
fig. 3 is a schematic diagram of the secondary interface device in the transformer substation provided by the present invention performing multi-stage start control contact output;
fig. 4 is a schematic diagram of the programmable logic of the secondary interface device in the substation provided by the present invention.
Detailed Description
Referring to fig. 1, the embodiment of the present invention provides a secondary interface device in a transformer substation, which includes a CPU communication board 1, a current sensor interface board 2, an access board 3, an access board 4 and a power board 5; wherein,
the CPU communication board card is used for realizing communication protocols of IEC61850 and IEC103 protocols and is respectively in physical connection with the current sensor interface board card 2, the access board card 3, the access board card 4 and the power board card 5 by adopting optical port Ethernet or electrical port Ethernet; it can be understood that the ethernet port on the CPU communication board is correspondingly set according to the access interfaces of the current sensor interface board 2, the access board 3, the access board 4 and the power board 5;
the current sensor board 3 is used for collecting current signals of a jumping ring, a combining ring and an energy storage motor, carrying out fixed value setting on the current signals, and then is used for a three-phase linkage switch mechanism or a split-phase switch mechanism and is also connected with a core-through current sensor;
the open board card 3 supports 60-way open;
the outgoing board card 4 supports dual-node control output;
the power supply board card 5 supports 110V and 220V alternating current and direct current input and comprises a locking module, an alarming module and a standby opening module.
The embodiment of the utility model provides an in, secondary interface device inserts cross-core current sensor in the transformer substation, on the basis of not destroying original secondary circuit, realizes specifically detecting its current signal's size and time to jumping the circle, closing the monitoring of circle, energy storage motor's current signal. The technical scheme has the advantage that even if the current sensor is damaged, the current loop cannot be caused to have problems. And because the Hall principle is adopted to design the core-penetrating type current sensor, the core-penetrating type current sensor can collect alternating current signals and also can collect direct current signals, and the problem that the field can be an alternating current energy storage motor or a direct current energy storage motor is solved. The device provided by the utility model will jump circle electric current, close circle electric current, energy storage motor current analog quantity and carry out the record ripples and keep some relevant characteristic parameters in the device falls in the nonvolatile storage space of electricity with the record to finally give the backstage on passing through GOOSE or MMS with the relevant alarm information who judges, the relevant operation personnel of suggestion inspect.
The embodiment of the utility model provides an in, secondary interface device adopts the mode of two contact series connections in the transformer substation.
Referring to fig. 2, the utility model discloses secondary interface device in transformer substation for further improve the security, to its mode of having opened and having adopted the double contact series connection, adopt the technical scheme of two-stage cascade action promptly, use the picture as the example, need the action simultaneously of two-stage relay to the operation of separating sword 3 accuse branch, could go down the order, two pairs separate sword 3 accuse branch contact equal actions promptly. The beneficial effect of this is that when any contact point is in trouble, the worst condition is that the action is refused, and the condition of false action is not occurred. If a scheme of action of a pair of contact points is adopted, when the contact points are adhered, misoperation is easy to occur. The scheme of the double-contact series connection greatly reduces the probability and improves the safety and reliability of the intelligent device.
The secondary interface device in the transformer substation of the embodiment of the utility model prevents misoperation caused by accidents under extreme conditions of device software and hardware, the output board card 4 is started through the back board, and after the board card starts a two-stage power supply, the relay acts, and when the secondary interface device in the transformer substation is abnormal and has power failure, the secondary interface device in the transformer substation is automatically locked through the hardware to output the board card 4; the secondary interface device in the transformer substation is automatically locked when the self-checking is abnormal, so that the relay is prevented from being wrongly exported; wherein, the relay sets up on opening out integrated circuit board 4.
Specifically, referring to fig. 3, when the secondary interface device in the transformer substation is abnormal and fails, the secondary interface device in the transformer substation can also automatically lock out the board card 4 through hardware, and even if the backplane is started, the board card cannot be exported. When the program runs off and the hardware self-checking is abnormal, the device can be automatically locked, and the relay cannot be mistakenly exported. The "backplane boot" and "board boot" are two boot signals controlled by the application. For example, when a command of 1 minute of the knife separator is received, whether the interlocking condition is met is judged firstly, and under the condition that the condition is met, the CPU communication board card starts the back board (opens the power supplies of all the opening boards), then sends a command to the opening boards to start the board card, and then controls the command to be exported. Because the opening board card is an intelligent plug-in, the method has the advantages that when the opening board card is abnormal (in the worst case, the opening board card triggers the relay in a messy way), the CPU communication board card is not opened, and therefore the device cannot be exported by mistake. The scheme that the layer by layer is open like this has improved GIS intelligent device stability greatly.
Referring to fig. 4, the present invention apparatus supports programmable logic. In order to satisfy the various nimble various application demands in scene, the utility model discloses the device supports the nimble configuration of opening into, opening out. As shown in the figure, the logic configuration on the site can be flexibly specified corresponding to the control division (double-contact series connection) of the isolation knife 2, and the logic here is: the control division of the isolating knife 2 = the circuit breaker division position n-shaped ground knife 1 division position n-shaped ground knife 2 division position n-shaped isolating knife 2 division position (n: represents an AND gate). If different requirements are required in the field, the logic can be flexibly changed, such as changing into: the control division of the isolating knife 2 = the dividing position of the land knife 3 and the dividing position of the land knife 4 and the dividing position of the isolating knife 1. Realize through this kind of configuration the utility model discloses the programmable logic of device satisfies the different application demands on scene.
Implement the utility model discloses an interior secondary interface device of transformer substation, it replaces traditional electromagnetic type relay, solves the intrinsic use shortcoming of electromagnetic type relay. Simultaneously link to each other with straight-through current sensor in the secondary interface device in the transformer substation, increase jump circle, close the monitoring function of circle, energy storage motor current, the utility model discloses an it is as an organic whole that secondary interface device collects intelligence antithetical couplet blocking function and on-line monitoring function in the transformer substation, can effectively overcome traditional relay return circuit trouble many, the undetectable shortcoming of trouble in the operation to the realization is detected the real-time state of primary equipment such as switch, simplifies the return circuit, simplifies the installation, improves the efficiency of carrying out the operation to primary equipment, improves the reliability of primary equipment operation.
In addition, the on-line monitoring function module of the device monitors the current of the jumping ring, the closing ring and the energy storage motor, and adopts the design of a core-through current sensor. Through the core-through current sensor installed at the front end, the current magnitude and time of the jumping ring, the closing ring and the energy storage motor can be monitored on the basis of not damaging the original secondary loop. The advantage of this solution is that even if the current sensor is damaged, it will not cause problems in the current loop. And because the Hall principle is adopted to design the current sensor, the current sensor can collect alternating current and direct current signals, and the problem that the field can be an alternating current energy storage motor or a direct current energy storage motor is solved.
The opening module of the secondary interface device in the transformer substation of the utility model adopts double-point information acquisition; the output module adopts double contacts to control output. In order to further improve the safety of the device, a scheme of adopting two-stage cascade action is provided, and a command can be executed only by simultaneously acting two stages of relays for any knife-separating operation.
The utility model provides a secondary interface device supports programmable logic in transformer substation. In order to satisfy the various nimble diversified application demands in scene, the utility model discloses the device supports the nimble configuration of opening into, opening out, satisfies the different application demand in scene.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (4)
1. A secondary interface device in a transformer substation is characterized by comprising a CPU communication board card, a current sensor interface board card, an input board card, an output board card and a power supply board card; wherein,
the CPU communication board card is used for realizing communication protocols of IEC61850 and IEC103 protocols and is respectively in physical connection with the current sensor interface board card, the input board card, the output board card and the power supply board card by adopting optical port Ethernet or electrical port Ethernet;
the current sensor board card is used for collecting current signals of a jumping ring, a combining ring and an energy storage motor, carrying out fixed value setting on the current signals, and then being used for a three-phase linkage switch mechanism or a split-phase switch mechanism and is also connected with a core-through current sensor;
the open board card supports 60-way open;
the outgoing board card supports double-node control output;
the power supply board card supports 110V and 220V alternating current and direct current input and comprises a locking module, an alarming module and a standby opening module.
2. The substation internal secondary interface device of claim 1, wherein the substation internal secondary interface device is in a dual contact series connection.
3. The substation internal secondary interface device according to claim 2, wherein the relay acts after the board card is started by the back plate and the board card is started by the two-stage power supply; the relay is arranged on the outgoing board card.
4. The substation internal secondary interface device according to claim 3, wherein the power board automatically locks the outlet board through a backplane start signal when the substation internal secondary interface device is abnormal and fails; and the secondary interface device in the transformer substation is automatically locked when the self-checking is abnormal, so that the relay is prevented from being wrongly exported.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015209140892 | 2015-11-17 | ||
| CN201520914089 | 2015-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205941660U true CN205941660U (en) | 2017-02-08 |
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| CN201620828199.1U Active CN205941660U (en) | 2015-11-17 | 2016-08-03 | Secondary interface device in transformer substation |
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| CN (1) | CN205941660U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914874A (en) * | 2015-11-17 | 2016-08-31 | 深圳供电局有限公司 | Secondary interface device in transformer substation |
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2016
- 2016-08-03 CN CN201620828199.1U patent/CN205941660U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914874A (en) * | 2015-11-17 | 2016-08-31 | 深圳供电局有限公司 | Secondary interface device in transformer substation |
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| C14 | Grant of patent or utility model | ||
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