CN204190382U - New kind of arc-suppression pressure limiting ground compensation and line selection apparatus - Google Patents
New kind of arc-suppression pressure limiting ground compensation and line selection apparatus Download PDFInfo
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- CN204190382U CN204190382U CN201420489972.7U CN201420489972U CN204190382U CN 204190382 U CN204190382 U CN 204190382U CN 201420489972 U CN201420489972 U CN 201420489972U CN 204190382 U CN204190382 U CN 204190382U
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- protocol conversion
- arc
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 abstract description 3
- 230000001264 neutralization Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 241000233805 Phoenix Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001808 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004301 light adaptation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N triclene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a kind of new kind of arc-suppression pressure limiting ground compensation and line selection apparatus, comprise controller, digitlization extinguishing arc module, 61850 protocol conversion cards, controller is connected by serial port with 61850 protocol conversion cards, controller is connected by independence networking with digitlization extinguishing arc module, 61850 protocol conversion cards by Ethernet interface and digital transformer substation on the spot monitoring client be connected, and be also connected with remote computer, controller comprises high speed processor, A/D converter, serial port, light-emitting diode display, database, man-machine interface, USB interface, high speed processor and A/D converter, serial port, light-emitting diode display, database, man-machine interface, USB interface connects, there are 61850 protocol conversion cards, realize the communication standard of IEC61850, by the information seamless access that detects in digital transformer substation and intelligent grid, handled easily personnel manage, be conducive to the intelligentized development of electrical network.
Description
technical field:
The utility model relates to a kind of extinguishing arc pressure limiting earthing compensation device, particularly relates to a kind of new kind of arc-suppression pressure limiting ground compensation and line selection apparatus.
background technology:
For a long time, the power distribution network of China 6 ~ 66KV adopts isolated neutral operational mode mostly.This operational mode, owing to allowing to operate with failure in the short time when single-phase earthing, thus substantially increases the power supply reliability of system.But along with the expansion of urban and rural power grids and increasing of cable outlet, the sharply increase of system capacitive earth current, the electric current flowing through fault point after single-phase earthing is larger, electric arc not easily extinguishes, easy generation intermittence arc grounding over-voltage, easily cause resonance overvoltage due to during electromagnetic potential transformer core sataration simultaneously, cause emergency stop valve trip rate obviously to rise.
In order to solve the problem, nationwide integrated power grid generally have employed resonance neutral grounding, namely at neutral point installing arc suppression coil.When there is single-phase earthing, the inductance current due to arc suppression coil generation compensate for the capacitance current of fault point, therefore makes the residual flow of fault point diminish, thus reaches nature blow-out, the object that Accident prevention expands.
Along with the continuous expansion of electrical network, there is incompatible situation with the detection system of electrical network other side in increasing of detection system, because monitoring information can not unified integration, increases the labour intensity of operator, hinder the development of electric power system from a long-term perspective.
utility model content:
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, there is provided a kind of simple and practical, the communication standard of IEC61850 can be realized, by the information seamless access that detects to the new kind of arc-suppression pressure limiting ground compensation in digital transformer substation and intelligent grid and line selection apparatus.
The technical solution of the utility model is: a kind of new kind of arc-suppression pressure limiting ground compensation and line selection apparatus, comprise controller, digitlization extinguishing arc module, 61850 protocol conversion cards, described controller is connected by serial port with 61850 protocol conversion cards, described 61850 protocol conversion cards are connected by independence networking with digitlization extinguishing arc module, described 61850 protocol conversion cards by Ethernet interface and digital transformer substation on the spot monitoring client be connected, and to be also connected with remote computer.
Described controller comprises high speed processor, A/D converter, serial port, light-emitting diode display, database, man-machine interface, USB interface, and described high speed processor is connected with A/D converter, serial port, light-emitting diode display, database, man-machine interface, USB interface.
Described database comprises controling parameters database and control mode database, and described serial port comprises RS-232 serial port and RS-485 serial port.
Described serial port is RS-232 serial port and or RS-485 serial port.
The beneficial effects of the utility model are:
1, the utility model has 61850 protocol conversion cards, can realize the communication standard of IEC61850, by the information seamless access that detects in digital transformer substation and intelligent grid, handled easily personnel manage, reduce labour intensity, be conducive to the intelligentized development of electrical network.
2, the utility model uses 61850 protocol conversion cards can realize the information sharing of intelligent electric equipment room and interoperability in transformer station, and the information in digital transformer substation is all accomplished digitlization, information transmission realizes networking, traffic model reaches standardization, makes various equipment and the unified information platform of function sharing.This makes Digitized transformation stand in system reliability, economy, easy maintenance aspect all has than conventional substation and significantly promotes.
3, the parameter configuration of the utility model 61850 protocol conversion card and monitoring in real time can carry out remote operation by remote computer.
4, the utility model uses A/D converter and frequency self-adaption technology, centering point electric current, neutral point voltage, reference voltage carry out direct AC sampling (every cycle adopts 128 points) and total digitalization process simultaneously, in conjunction with photoelectric isolation technology, thorough harmonic carcellation interference and electromagnetic interference.
5, the utility model realizes Non-follow control and being separated completely of automatically controlling, 12 tunnels, 24 tunnels, 32 tunnel outlet earthing wire-selecting functions can be matched, A/D converter is sampled to each outlet zero-sequence current and system neutral displacement voltage simultaneously, guarantees simultaneity and the comparativity of each sampled signal.
accompanying drawing illustrates:
Fig. 1 is novel WZXC extinguishing arc pressure limiting ground compensation and line selection apparatus structural representation.
Fig. 2 is novel WZXC extinguishing arc pressure limiting ground compensation and line selection apparatus electrical connection block diagram.
Fig. 3 is that controller connects block diagram.
embodiment:
Embodiment: see Fig. 1, Fig. 2 and Fig. 3.
Novel WZXC extinguishing arc pressure limiting ground compensation and line selection apparatus: comprise controller, digitlization extinguishing arc module, 61850 protocol conversion cards, controller is connected by serial port with 61850 protocol conversion cards, 61850 protocol conversion cards are connected by independence networking with digitlization extinguishing arc module, 61850 protocol conversion cards by Ethernet interface and digital transformer substation on the spot monitoring client be connected, and to be also connected with remote computer.
Controller comprises high speed processor, A/D converter, serial port, light-emitting diode display, database, man-machine interface, USB interface, and high speed processor is connected with A/D converter, serial port, light-emitting diode display, database, man-machine interface, USB interface,
Database comprises controling parameters database and control mode database, and serial port comprises RS-232 serial port and RS-485 serial port.
Serial port is RS-232 serial port and or RS-485 serial port.
During use, after in handle assembly detection circuit for access, and be connected with remote computer.
Accessory and Peripheral Interface:
(1) high speed processor: ARM920T series microprocessor core, dominant frequency 500MHz;
(2) expansion bus interface: 8/16 Local Bus bus, bus frequency 50MHz;
(3) internal memory: 128MB;
(4) Ethernet: two-way 10/100BASE-T self adaptation Ethernet, RJ45 interface, built-in isolating transformer, withstand voltage 1000V DC;
(5) serial port: two-way RS485 bus interface, 3KV DC Phototube Coupling, outside employing 3 phoenix terminals, indicate with data transmit-receive LED lamp;
(6) two-way TTL 5V level two line (TXD, RXD) serial ports, road RS232 tri-line (TXD, RXD, a GND) debug serial port;
(7) LED indicator light: one group of RS485 bus data transmitting-receiving indicator light, one group of programmable system runs, alarm status indicator light;
(8) power supply input: needed for the whole plate of system, power supply is 5V DC, supply current≤0.5A.
Environment:
(1) working temperature:
-10 ～ +60℃；
Humidity 10 ~ 95%RH does not condense;
Height above sea level: 1000 meters;
(2) preserve:
Temperature :-10 ~+60 DEG C;
Humidity: 10 ~ 95%RH does not condense;
Height above sea level: 1000 meters.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (1)
1. a new kind of arc-suppression pressure limiting ground compensation and line selection apparatus, comprise controller, digitlization extinguishing arc module, 61850 protocol conversion cards, it is characterized in that: described controller is connected by serial port with 61850 protocol conversion cards, described C61850 protocol conversion card is connected by independence networking with digitlization extinguishing arc module, described 61850 protocol conversion cards by Ethernet interface and digital transformer substation on the spot monitoring client be connected, and to be also connected with remote computer.
2. new kind of arc-suppression pressure limiting ground compensation according to claim 1 and line selection apparatus, it is characterized in that: described controller comprises high speed processor, A/D converter, serial port, light-emitting diode display, database, man-machine interface, USB interface, described high speed processor is connected with A/D converter, serial port, light-emitting diode display, database, man-machine interface, USB interface.
3. new kind of arc-suppression pressure limiting ground compensation according to claim 2 and line selection apparatus, is characterized in that: described database comprises controling parameters database and control mode database, and described serial port comprises RS-232 serial port and RS-485 serial port.
4. new kind of arc-suppression pressure limiting ground compensation according to claim 1 and line selection apparatus, is characterized in that: described serial port is RS-232 serial port and or RS-485 serial port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420489972.7U CN204190382U (en) | 2014-08-28 | 2014-08-28 | New kind of arc-suppression pressure limiting ground compensation and line selection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420489972.7U CN204190382U (en) | 2014-08-28 | 2014-08-28 | New kind of arc-suppression pressure limiting ground compensation and line selection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204190382U true CN204190382U (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420489972.7U Expired - Fee Related CN204190382U (en) | 2014-08-28 | 2014-08-28 | New kind of arc-suppression pressure limiting ground compensation and line selection apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN204190382U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664728A (en) * | 2017-10-13 | 2018-02-06 | 国家电网公司 | Network system earthing compensation device diagnostic platform |
-
2014
- 2014-08-28 CN CN201420489972.7U patent/CN204190382U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664728A (en) * | 2017-10-13 | 2018-02-06 | 国家电网公司 | Network system earthing compensation device diagnostic platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20170828 |
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| CF01 | Termination of patent right due to non-payment of annual fee |