CN204156517U - A kind of intelligent substation low-voltage bus bar protection system - Google Patents
A kind of intelligent substation low-voltage bus bar protection system Download PDFInfo
- Publication number
- CN204156517U CN204156517U CN201420676473.9U CN201420676473U CN204156517U CN 204156517 U CN204156517 U CN 204156517U CN 201420676473 U CN201420676473 U CN 201420676473U CN 204156517 U CN204156517 U CN 204156517U
- Authority
- CN
- China
- Prior art keywords
- protection
- supervisory equipment
- equipment
- protection supervisory
- busbar
- 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
- 239000003990 capacitor Substances 0.000 claims abstract description 11
- 238000005204 segregation Methods 0.000 claims abstract description 11
- 241000272814 Anser sp. Species 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a kind of intelligent substation low-voltage bus bar protection system, comprise the protection measure and control unit (3) of protection equipment for busbar (1), the station level network switch (2) and each branch road, described protection measure and control unit (3) comprises the multiple protection supervisory equipment be connected with bus respectively, is connected between described protection equipment for busbar (1), described protection supervisory equipment respectively by network interface with the station level network switch (2); Multiple protection supervisory equipment that described and bus is connected comprise block switch protection supervisory equipment, line segregation protection supervisory equipment, grounding transformer interval protection supervisory equipment, main transformer interval protection supervisory equipment and capacitor standoff protection supervisory equipment.The utility model is without the need to newly increasing the network switch; each branch protection measure and control device is also without the need to increasing new network interface; while effectively reducing secondary cable use amount, 35kV and following electric pressure busbar fault can be excised fast and accurately, install and overhaul convenient and swift.
Description
Technical field
The utility model relates to the low-voltage bus bar protection system of 35kV and following electric pressure intelligent substation, is specifically related to a kind of intelligent substation low-voltage bus bar protection system.
Background technology
35kV in current intelligent substation and the outlet of following electric pressure system is many, frequent operation, and due to reasons such as toy harm, apparatus insulated aging and mechanical wears, often there is busbar fault.And the busbar fault of current 35kV and following electric pressure is by being installed in backup protection or the excision of simple and easy bus protection of step down side; excision fault required time is long; increase the damaged condition of equipment, the large area easily causing neighbouring device is burnt, and even can burn main transformer time serious.According to the conventional bus bar allocation plan being applied to 110kV and above at present; as shown in Figure 1; the magnitude of current in loop each on all bus section, busbar sections is introduced protection equipment for busbar; then need to increase a large amount of secondary cables between protection equipment for busbar and voltage current transformer CVT, isolating switch SW, circuit breaker CB; construction workload is large; secondary cable probability of failure and protection O&M difficulty greatly, are difficult to promotion and implementation.In sum, in engineering practice, in the urgent need to a kind of newly, effective intelligent substation low-voltage bus bar protection system, while effectively reducing secondary cable use amount, 35kV and following electric pressure busbar fault can be excised fast and accurately.
Utility model content
Technical problem to be solved in the utility model is; not enough for prior art; there is provided one both without the need to newly increasing the network switch; each branch protection measure and control device is also without the need to increasing new network interface; while effectively reducing secondary cable use amount, 35kV and following electric pressure busbar fault, installation can be excised fast and accurately and overhaul conveniently intelligent substation low-voltage bus bar protection system again.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of intelligent substation low-voltage bus bar protection system; comprise the protection measure and control unit of protection equipment for busbar, the station level network switch and each branch road; described protection measure and control unit comprises the multiple protection supervisory equipment be connected with bus respectively, is connected between described protection equipment for busbar, described protection supervisory equipment respectively by network interface with the station level network switch.
Preferably, multiple protection supervisory equipment that described and bus is connected comprise block switch protection supervisory equipment, line segregation protection supervisory equipment, grounding transformer interval protection supervisory equipment, main transformer interval protection supervisory equipment and capacitor standoff protection supervisory equipment.
Preferably, described protection equipment for busbar is UDA-502 type protection equipment for busbar.
Preferably, the described station level network switch is the EPS6028E type station level network switch.
Preferably, described block switch protection supervisory equipment is UDL-551S type block switch protection supervisory equipment.
Preferably, described line segregation protection supervisory equipment is UDL-551U type line segregation protection supervisory equipment.
Preferably, described grounding transformer interval protection supervisory equipment is UDL-551W type grounding transformer interval protection supervisory equipment.
Preferably, described main transformer interval protection supervisory equipment is UDT-531 type main transformer interval protection supervisory equipment.
Preferably, described capacitor standoff protection supervisory equipment is UDQ-551E type capacitor standoff protection supervisory equipment.
The utility model intelligent substation low-voltage bus bar protection system has following advantage: the utility model comprises protection equipment for busbar, the protection measure and control unit of the station level network switch and each branch road, protection measure and control unit comprises the multiple protection supervisory equipment be connected with bus respectively, protection equipment for busbar, be connected with the station level network switch respectively by network interface between protection supervisory equipment, the system protected for realizing intelligent substation low-voltage bus bar is made up of many devices, the information interaction of the protection supervisory equipment of protection equipment for busbar and each branch road is realized by the station level network switch, without the need to newly increasing the network switch again, the protection supervisory equipment of each branch road is because being connected with the station level network switch, also without the need to increasing network interface or light mouth, the information interaction with bus differential protection device can be realized by original network interface, in addition, the startup of protection equipment for busbar and compound voltage lockout criterion are without the need to being undertaken the electric current of each branch road, voltage access device again, only need by the station level network switch receive in each active leg protection supervisory equipment with the enabling signal of GOOSE message transmission and composite voltage clearing signal, a large amount of secondary cable will be saved, be also conducive to installation and the maintenance of protection.
Accompanying drawing explanation
Fig. 1 is the frame structure schematic diagram that prior art is applied to the low-voltage bus bar protection system of 110kV and above.
Fig. 2 is the frame structure schematic diagram of the utility model embodiment.
Fig. 3 is the frame structure schematic diagram of protection measure and control unit in the utility model embodiment.
Marginal data: 1, protection equipment for busbar; 2, the station level network switch; 3, protection measure and control unit.
Embodiment
As shown in Figure 2; the intelligent substation low-voltage bus bar protection system of the present embodiment comprises the protection measure and control unit 3 of protection equipment for busbar 1, the station level network switch 2 and each branch road; protection measure and control unit 3 comprises the multiple protection supervisory equipment be connected with bus respectively, is connected between protection equipment for busbar 1, protection supervisory equipment respectively by network interface with the station level network switch 2.
As shown in Figure 3, in the present embodiment and multiple protection supervisory equipment of being connected of bus comprise block switch protection supervisory equipment, line segregation protection supervisory equipment, grounding transformer interval protection supervisory equipment, main transformer interval protection supervisory equipment and capacitor standoff protection supervisory equipment.
In the present embodiment, protection equipment for busbar 1 is UDA-502 type protection equipment for busbar, and UDA-502 type protection equipment for busbar is the matured product of Shanghai Sieyuan Hongrui Automation Co., Ltd.'s product.
In the present embodiment, the station level network switch 2 is the EPS6028E type station level network switch, and the EPS6028E type station level network switch is the electric power Special industrial Ethernet switch towards intelligent substation.
In the present embodiment, block switch protection supervisory equipment, line segregation protection supervisory equipment, grounding transformer interval protection supervisory equipment, main transformer interval protection supervisory equipment and capacitor standoff protection supervisory equipment all adopt the matured product of Shanghai Sieyuan Hongrui Automation Co., Ltd.'s product, and wherein block switch protection supervisory equipment is UDL-551S type block switch protection supervisory equipment; Line segregation protection supervisory equipment is UDL-551U type line segregation protection supervisory equipment; Grounding transformer interval protection supervisory equipment is UDL-551W type grounding transformer interval protection supervisory equipment; Main transformer interval protection supervisory equipment is UDT-531 type main transformer interval protection supervisory equipment; Capacitor standoff protection supervisory equipment is UDQ-551E type capacitor standoff protection supervisory equipment.
The intelligent substation low-voltage bus bar protection system of the present embodiment is by protection equipment for busbar 1, multiple protection supervisory equipment that the protection measure and control unit 3(of the station level network switch 2 and each branch road is connected with bus) form the system configuration that more than, device forms, protection equipment for busbar 1, be connected with the station level network switch 2 respectively by network interface between protection supervisory equipment, the transfer of data between protection equipment for busbar 1 and protection supervisory equipment can be realized, thus provide hardware foundation for protection equipment for busbar 1 carries out bus differential protection based on the image data that each protection supervisory equipment exports, but the realization of the present embodiment technical scheme does not also rely on the concrete bus differential protection method of protection equipment for busbar 1.
The operation principle of the intelligent substation low-voltage bus bar protection system of the present embodiment is as follows: the GOOSE message due to IEC 61850 standard has the feature of good real-time; the startup of protection equipment for busbar 1 and multiple protection supervisory equipment of being connected with bus, allow action and tripping operation information all to be transmitted in the mode of GOOSE message by the station level network switch 2, jointly realize busbar fault by protection equipment for busbar 1 and multiple protection supervisory equipment of being connected with bus and differentiate.Protection supervisory equipment itself because of each branch road has completed the collection of switching value and analog quantity; the startup of protection equipment for busbar 1 and compound voltage lockout criterion, without the need to the electric current of each branch road, voltage access device being carried out, only need receive in the protection supervisory equipment of each branch road by the station level network switch 2 with the enabling signal of GOOSE message transmission and composite voltage clearing signal again.When fault occurs, determine whether by the discriminating direction result given by the protection supervisory equipment direction component of more each branch road the internal fault that there occurs this bus.When bus internal fault, protection equipment for busbar 1 is started and after the permission actuating signal sent by the protection supervisory equipment that the network interface be connected with the station level network switch 2 receives all branch roads, protection equipment for busbar 1 action, by the station level network switch 2, trip command is sent to the protection supervisory equipment of all branch roads be connected with bus immediately, by the corresponding branch breaker of protection supervisory equipment tripping of each branch road, excision busbar fault; When bus external fault, only have the protection supervisory equipment of partial branch to send permission actuating signal by the station level network switch 2 to protection equipment for busbar 1, protection equipment for busbar 1 is judged to be external fault, is failure to actuate.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (9)
1. an intelligent substation low-voltage bus bar protection system; it is characterized in that: the protection measure and control unit (3) comprising protection equipment for busbar (1), the station level network switch (2) and each branch road; described protection measure and control unit (3) comprises the multiple protection supervisory equipment be connected with bus respectively, is connected between described protection equipment for busbar (1), described protection supervisory equipment respectively by network interface with the station level network switch (2).
2. intelligent substation low-voltage bus bar protection system according to claim 1, is characterized in that: multiple protection supervisory equipment that described and bus is connected comprise block switch protection supervisory equipment, line segregation protection supervisory equipment, grounding transformer interval protection supervisory equipment, main transformer interval protection supervisory equipment and capacitor standoff protection supervisory equipment.
3. intelligent substation low-voltage bus bar protection system according to claim 2, is characterized in that: described protection equipment for busbar (1) is UDA-502 type protection equipment for busbar.
4. intelligent substation low-voltage bus bar protection system according to claim 3, is characterized in that: the described station level network switch (2) is the EPS6028E type station level network switch.
5. intelligent substation low-voltage bus bar protection system according to claim 4, is characterized in that: described block switch protection supervisory equipment is UDL-551S type block switch protection supervisory equipment.
6. intelligent substation low-voltage bus bar protection system according to claim 5, is characterized in that: described line segregation protection supervisory equipment is UDL-551U type line segregation protection supervisory equipment.
7. intelligent substation low-voltage bus bar protection system according to claim 6, is characterized in that: described grounding transformer interval protection supervisory equipment is UDL-551W type grounding transformer interval protection supervisory equipment.
8. intelligent substation low-voltage bus bar protection system according to claim 7, is characterized in that: described main transformer interval protection supervisory equipment is UDT-531 type main transformer interval protection supervisory equipment.
9. intelligent substation low-voltage bus bar protection system according to claim 8, is characterized in that: described capacitor standoff protection supervisory equipment is UDQ-551E type capacitor standoff protection supervisory equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420676473.9U CN204156517U (en) | 2014-11-13 | 2014-11-13 | A kind of intelligent substation low-voltage bus bar protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420676473.9U CN204156517U (en) | 2014-11-13 | 2014-11-13 | A kind of intelligent substation low-voltage bus bar protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204156517U true CN204156517U (en) | 2015-02-11 |
Family
ID=52514605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420676473.9U Active CN204156517U (en) | 2014-11-13 | 2014-11-13 | A kind of intelligent substation low-voltage bus bar protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204156517U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356424A (en) * | 2015-11-26 | 2016-02-24 | 国网河南省电力公司平顶山供电公司 | Bus protection system based on information high-speed interaction technology |
| CN107086072A (en) * | 2017-05-31 | 2017-08-22 | 吉林大洋电气科技有限公司 | A kind of intelligent Bus system |
| CN108199337A (en) * | 2017-12-13 | 2018-06-22 | 华中科技大学 | Transformer station secondary system and its performance improvement method are pressed in one kind |
| CN108281942A (en) * | 2017-12-28 | 2018-07-13 | 国网北京市电力公司 | The protection observing and controlling measurent wiring method and device of substation low-voltage side |
| CN110943535A (en) * | 2019-12-31 | 2020-03-31 | 上海施耐德电气电力自动化有限公司 | Power supply control system |
| CN113300337A (en) * | 2021-05-24 | 2021-08-24 | 深圳供电局有限公司 | Feeder protection warning system on same generating line in transformer substation |
-
2014
- 2014-11-13 CN CN201420676473.9U patent/CN204156517U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356424A (en) * | 2015-11-26 | 2016-02-24 | 国网河南省电力公司平顶山供电公司 | Bus protection system based on information high-speed interaction technology |
| CN105356424B (en) * | 2015-11-26 | 2018-05-11 | 国网河南省电力公司平顶山供电公司 | Bus protection relay system based on high speed information interaction technique |
| CN107086072A (en) * | 2017-05-31 | 2017-08-22 | 吉林大洋电气科技有限公司 | A kind of intelligent Bus system |
| CN108199337A (en) * | 2017-12-13 | 2018-06-22 | 华中科技大学 | Transformer station secondary system and its performance improvement method are pressed in one kind |
| CN108199337B (en) * | 2017-12-13 | 2019-04-05 | 华中科技大学 | Transformer station secondary system and its performance improvement method are pressed in one kind |
| CN108281942A (en) * | 2017-12-28 | 2018-07-13 | 国网北京市电力公司 | The protection observing and controlling measurent wiring method and device of substation low-voltage side |
| CN110943535A (en) * | 2019-12-31 | 2020-03-31 | 上海施耐德电气电力自动化有限公司 | Power supply control system |
| CN113300337A (en) * | 2021-05-24 | 2021-08-24 | 深圳供电局有限公司 | Feeder protection warning system on same generating line in transformer substation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204156517U (en) | A kind of intelligent substation low-voltage bus bar protection system | |
| CN102270836B (en) | Wide-area over-current protection method and system for power distribution network | |
| EP3216644B1 (en) | Distributed protection system for power supply at sections of electrified railway propulsion system | |
| CN201689159U (en) | State monitoring system of circuit breaker | |
| CN103022992A (en) | Feeder ground positioning method based on dispersion zero sequence voltage detection | |
| CN102710022A (en) | Power distribution network feeder protection and reconfiguration scheme based on intelligent feeder terminal unit | |
| CN203561717U (en) | Distribution board direct current ground connection alarm device | |
| CN202309201U (en) | Communication power system | |
| CN104113047A (en) | Electricity utilization protection method and electricity utilization protection device based on comprehensive integration of public transformers | |
| CN102623994B (en) | Substation area control method and system of microgrid operation mode | |
| CN203445606U (en) | Direct current traction power supply system | |
| CN104124672A (en) | Power restoration method for voltage type fault section front end | |
| CN105552908A (en) | Self-healing control method of power distribution network | |
| CN103326334A (en) | Thyristor rectification tractive power supply system and protective method | |
| CN201601481U (en) | Arc light protecting device | |
| CN203895978U (en) | Neutral ground protection system used for medium-voltage power grid | |
| CN103855810A (en) | Self-healing security and stability system for 110KV substation | |
| CN102306930A (en) | Trip system of total residual current operated protector of distribution area and application method thereof | |
| CN103227460A (en) | Intelligent power distribution monitoring system and intelligent power distribution monitoring method | |
| CN203690905U (en) | Insulation monitoring system for grounding photovoltaic power generation system | |
| CN203069726U (en) | Rural power grid power distribution line fault location and isolation system | |
| CN107741530A (en) | A kind of release unit that management through quantification is realized to line loss, system and implementation method | |
| CN203251091U (en) | Ground comprehensive protecting device for electricity utilization | |
| CN202798121U (en) | Intelligent substation domain backup automatic switch system based on station level microsoft media server protocol (MMS) | |
| CN202550678U (en) | Network communication system used for intelligent transformer substation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |