CN205583386U - Voltage hardware of double bus scheme's of transformer substation dualization of generating line merging cells configuration is connected - Google Patents
Voltage hardware of double bus scheme's of transformer substation dualization of generating line merging cells configuration is connected Download PDFInfo
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- CN205583386U CN205583386U CN201620048873.4U CN201620048873U CN205583386U CN 205583386 U CN205583386 U CN 205583386U CN 201620048873 U CN201620048873 U CN 201620048873U CN 205583386 U CN205583386 U CN 205583386U
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- 230000002159 abnormal effect Effects 0.000 claims abstract description 9
- 239000013307 optical fiber Substances 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 229940052961 longrange Drugs 0.000 abstract 3
- 239000000835 fiber Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000008034 disappearance Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
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Abstract
The utility model discloses a voltage hardware of double bus scheme's of transformer substation dualization of generating line merging cells configuration is connected, every section generating line intelligent control cashier's office in a shop install additional one set with dispose the same generating line PT merging cells before, two merging cells configurations are the same, every section generating line intelligent control cabinet still increases by one set of complete OLP optic fibre automatic switching control equipment, still including long -range expert intelligent judgment system, long -range expert intelligent judgment system is used for realizing that automatic the catching of abnormal information grab and teleswitching control, long -range expert intelligent judgment system then electric appliance wiring return circuit and remote intelligent switch the control logic return circuit including busbar voltage monitoring. The utility model discloses an increase relevant equipment and drop into and the logic control return circuit, can realize the control of faulty equipment self -healing seamless handover, greatly improve electric wire netting equipment reliability of operation, but just the overhaul of the equipments is arranged to the random time, improve and overhaul the convenience of maintaining.
Description
Technical field
This utility model relates to a kind of 110 kilovolts of system voltage allocation plans, particularly a kind of transformer station double bus scheme
Bus combining unit duplicate system retrofit voltage hardware connect.
Background technology
It is known that double bus scheme mode bus PT powers to the multiple equipment in multiple intervals simultaneously, once break down
Affecting face very big, deteriorated area protection seting coordinates, in some instances it may even be possible to cause electrical network large number quipments refused action or tripping operation of bypassing the immediate leadership.The most several
Year, along with intelligent substation Accelerating The Construction and constantly to put into operation, combining unit and intelligent terminal extensively apply change tradition to become
Power station output, way of output research and development and design concept, and for 110 kilovolts of system lists of Intelligent transformer station double bus scheme mode
Configuration equipment, the protection of the current mono-configuration of all 110kV of 220kV intelligent station and automatic safety device are by 110kV I section bus
Combining unit cascade is drawn and is taken busbar voltage, such as Fig. 1, shown in 2.DC source designs: 110kV I, II section bus combining unit is straight
Stream power supply draws respectively and takes DC power system I, II section power supply, and the protection of 110kV line segregation, observing and controlling, control and intelligent assembly are electric
Source carries out power distribution according to odd even interval numbers.General odd-numbered interval takes DC source I section, and even-numbered interval takes II
Section power supply.As shown in Figure 3,4.The bus bar configuration scheme of prior art exists main problem to be had: 1) 110kVI section bus merges
Unit fault, causes all 110kV line segregation voltages cascading its busbar voltage to lose, distance protection and band direction unit
The quick fraction zero-sequenceprotection of part is all blocked, and only retains long delay PT broken string overcurrent protection and zero-sequenceprotection (action of typically adjusting
Time is 3 ~ 4 seconds), arbitrary circuit or element fault under this power system operating mode, difficulty certainly will be coordinated to cause because of protection seting
Bypass the immediate leadership action, expand fault coverage, in some instances it may even be possible to cause a plurality of circuit to trip simultaneously.2) even-numbered interval protection,
Controlling and the bus combining unit of intelligent assembly and cascade mounts not on same section DC source, DC source I segment fault loses
In the case of, all 110kV route protection voltages all lose, the impact of generation same 1) analyze.
Utility model content
In place of the purpose of this utility model is to overcome the deficiencies in the prior art, and provide a kind of automatic by master/slave device
Switching control, is effectively isolated faulty equipment, grid equipment reliability of operation is greatly improved, and random time can arrange equipment inspection
Repair, improve intelligent substation 110 kilovolts of system voltage allocation plans of double bus scheme mode hard of the convenience of repair and maintenance
Part connects.
The voltage hardware of the bus combining unit duplicate system retrofit of a kind of transformer station double bus scheme connects, and includes I, II
Bus, I, II bus Intelligent control cabinet, I, II bus PT combining unit, every section of bus Based Intelligent Control cashier's office in a shop install additional a set of therewith
The bus PT combining unit that front configuration is identical, is i.e. equiped with bus PT combining unit A and bus at every section of bus Intelligent control cabinet
PT combining unit B, two combining unit configurations are identical, all have busbar voltage function arranged side by side, all can externally export I female and II mother
Voltage, for realizing the seamless switching of the active and standby device of busbar voltage, every section of bus Intelligent control cabinet also increases complete set
OLP automatic optical fiber switching device, when two overlap combining units the most under normal circumstances, A set combining unit works as main equipment, and B overlaps
Combining unit, as warm standby, also includes Remote intelligent decision system, Remote intelligent decision system in order to
Realizing abnormal information automatically to catch and grab and remotely switching control, described Remote intelligent decision system includes busbar voltage prison
Survey relay wiring loop and long-distance intelligent switch control logic loop.
On the basis of this utility model is by designing in existing busbar voltage, cashier's office in a shop install one additional every section of bus Based Intelligent Control
Overlapping and configure identical bus PT combining unit before, i.e. I female bus Intelligent control cabinet is equiped with I female bus PT combining unit A
With I female bus PT combining unit B, two combining unit configurations are identical, all have busbar voltage function arranged side by side, all can externally export
I female and II female voltage.For realizing the seamless switching of the active and standby device of busbar voltage, every section of bus Intelligent control cabinet need to increase by one
Overlap complete OLP automatic optical fiber switching device, when two complete equipments the most under normal circumstances, A covering device as main equipment work, B overlap
As warm standby, when A set merges the related interval that plant failure causes cascade or draw to take this section of bus equipment, SV level occurs
Connection exception or PT disconnection signal, or it is attended by the abnormal informations such as A set bus combining unit direct current disappearance or device locking, and right
This bus Intelligent control cabinet protection, metering alternating voltage input, B set combining unit and the hard contact point signal of OLP device
Monitoring in real time and comprehensive descision, Remote intelligent decision (carries out integrated logic with above-mentioned duty and abnormal information
Differentiate), it is achieved abnormal information is automatically caught and is grabbed and remotely switching control.
Described 110 kilovolts of system voltage allocation plans of intelligent substation double bus scheme mode are also by artificial long-range
Or Non-follow control drives OLP device to switch on the spot.
Described busbar voltage control relay connection circuit, is specially: at every section of every section of bus Intelligent control cabinet
Bus protection and metering Secondary Winding install AB, BC phase low-voltage control relay additional, and bus-bar potential transformer output voltage is normal
And wiring normal time, relay input coil all has 100V secondary voltage, thus under-voltage replay is failure to actuate；Work as busbar voltage
When transformer output voltage exception and wiring exception, AB, BC phase low-voltage control relay detects that input voltage is less than 70V,
The now actuating of relay, two low-voltage control relay warning signal contacts of I section bus also access this section of bus intelligence after connecing
The bus intelligent terminal of switch board, two low-voltage control relay warning signal contacts of II section bus are equally and access should
The bus intelligent terminal of cabinet.Bus PT combining unit device B its I, II section bus protection, metering, the opening voltage increased
Input inputs with bus PT combining unit device A and connects, and is all connected to low-voltage control relay rear end, combining unit device B
Working power is opened supply by independent direct current sky, and power supply takes from this section of bus Intelligent control cabinet DC supply input；Device locking, straight
The loss signal of telecommunication accesses the bus intelligent terminal of this section of bus Intelligent control cabinet, combining unit device A, combining unit device
B all configures tail optical fiber wire jumper to OLP device input, each cascaded-branch optical cable wiring is connected to OLP device outfan simultaneously, increases
OLP installation's power source opened supply by independent direct current sky, power supply takes from this section of bus Intelligent control cabinet DC supply input；OLP fills
Put fault-signal and also access the bus intelligent terminal of this section of bus Intelligent control cabinet, utilize this section of bus Intelligent control cabinet
The two-position of bus intelligent terminal is standby to be outputed a little, and concatenation is available for throwing the control of export pressing plate moved back simultaneously, it is achieved remote control is certainly
Dynamic or manual switching controls, and this output point accesses OLP device with artificial on the spot switching control knob newly-increased cashier's office in a shop and after connecing
Switching circuit, forms remotely and on the spot optical fiber switching control loop, controls power supply and uses the bus of this section of bus Intelligent control cabinet
Intelligent terminal working power.
In sum, this utility model following advantage compared to existing technology:
This utility model is by increasing relevant device input and loop control logic and combining corresponding control, Ke Yishi
Existing faulty equipment spontaneous recovery seamless switching controls, and grid equipment reliability of operation is greatly improved, and random time can arrange equipment
Maintenance, improves the convenience of repair and maintenance.
Accompanying drawing explanation
Fig. 1 is the 110kV I section bus combining unit wiring schematic diagram of prior art.
Fig. 2 is the 110kV II section bus combining unit wiring schematic diagram of prior art.
Fig. 3 is 110kV system interval DC source I section wiring schematic diagram.
Fig. 4 is 110kV system interval DC source II section wiring schematic diagram.
Fig. 5 is that 110kVI section bus of the present utility model installs volt sensing relay connection circuit figure additional.
Fig. 6 is 110kVI section bus combining unit switching control of the present utility model signal loop diagram.
Fig. 7 is that 110kVII section bus of the present utility model installs volt sensing relay connection circuit figure additional.
Fig. 8 is 110kVII section bus combining unit switching control of the present utility model signal loop diagram.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is described in more detail.
Embodiment 1
The voltage hardware of the bus combining unit duplicate system retrofit of a kind of transformer station double bus scheme connects, specifically at every section
Bus Based Intelligent Control cashier's office in a shop installs additional a set of and configures identical bus PT combining unit before.I.e. I female bus Intelligent control cabinet dress
Being provided with I female bus PT combining unit A and I female bus PT combining unit B, two combining unit configurations are identical, all have bus electricity
Press function arranged side by side, all can externally export I female and II female voltage.I.e. II female bus Intelligent control cabinet is equiped with II female bus PT and merges
Female bus PT combining unit B of unit A and II, two combining unit configurations are identical, all have busbar voltage function arranged side by side, all can be right
Outer output I mother and II female voltage.For realizing the seamless switching of the active and standby device of busbar voltage, every section of bus Intelligent control cabinet needs to increase
Add the OLP automatic optical fiber switching device of complete set, when two complete equipments the most under normal circumstances, A covering device as main equipment work,
As warm standby, there is SV when A set merges the related interval that plant failure causes cascade or draw to take this section of bus equipment in B set
Cascade exception or PT disconnection signal, or it is attended by the abnormal informations such as A set bus combining unit direct current disappearance or device locking, and
To this bus Intelligent control cabinet protection, metering alternating voltage input, B set combining unit and the hard contact letter of OLP device
Number monitoring in real time and comprehensive descision, Remote intelligent decision (is comprehensively patrolled with above-mentioned duty and abnormal information
Volume differentiate), it is achieved abnormal information is automatically caught and is grabbed and remotely switching control, or in the distance under intelligent distinguishing failure conditions, O&M
Operator on duty can drive OLP device to switch over by artificial the most remotely or on the spot Non-follow control, and busbar voltage control relay connects
Line loop figure, switching control circuit diagram, long-distance intelligent switch control logic figure.
This utility model is particularly as follows: need to increase following capital equipment in original design: 1) every section of bus Based Intelligent Control
Cabinet installs 1 set bus additional and merges device, and double bus scheme is 2 sets；2) to install 1 set OLP optical fiber additional automatic for every section of bus Intelligent control cabinet
Switching device, double bus scheme is 2 sets；3) every section of bus need to install 4 bus Intelligent control cabinet AC-input voltages monitorings additional and continues
Electrical equipment, double bus scheme is 8.
2, circuit connection situation (in literary composition as a example by I section bus PT Intelligent control cabinet, II section bus is identical): 1) every section of mother
Line protection and metering Secondary Winding install AB, BC phase low-voltage control relay (typically adjusting at 70V), bus-bar potential transformer additional
When output voltage is normal and wiring is normal, relay input coil all has 100V secondary voltage, thus under-voltage replay is motionless
Make；When bus-bar potential transformer output voltage exception and wiring exception, AB, BC phase low-voltage control relay detects input
Voltage is less than 70V, the now actuating of relay, and two low-voltage control relay warning signal contacts of I section bus also access I after connecing
Section bus intelligent terminal, two low-voltage control relay warning signal contacts of II section bus are same and access I section mother
Line intelligent terminal.2) bus its I, II section bus protection of PT combining unit device B of increasing, metering, the input of opening voltage
Input with bus PT combining unit device A and connect, be all connected to low-voltage control relay rear end；PT combining unit device B work
Making power supply and opened supply by independent direct current sky, power supply takes from this cabinet DC supply input；Device locking, direct current dead electricity signal access I
Section bus intelligent terminal.3) combining unit device A, combining unit device B all configure tail optical fiber wire jumper to OLP device input, with
Time each cascaded-branch optical cable wiring is connected to OLP device outfan.4) the OLP installation's power source increased is opened confession by independent direct current sky
Giving, power supply takes from this cabinet DC supply input；Plant failure signal accesses I section bus intelligent terminal.5) mother's I PT intelligence is utilized
In energy Intelligent control cabinet, the two-position of intelligent terminal is standby outputs a little, and concatenation is available for throwing the control of export pressing plate moved back simultaneously,
Realizing remote control automatic or manual switching control, this output point accesses with artificial on the spot switching control knob newly-increased cashier's office in a shop and after connecing
The switching circuit of OLP device, forms remotely and on the spot optical fiber switching control loop, controls power supply and uses this cabinet intelligent terminal
Working power.
The not described part of the present embodiment is same as the prior art.
Claims (3)
1. the voltage hardware of the bus combining unit duplicate system retrofit of transformer station's double bus scheme connects, and includes I, II female
Line, I, II bus Intelligent control cabinet, I, II bus PT combining unit, it is characterised in that: cashier's office in a shop add every section of bus Based Intelligent Control
Fill a set of and configure identical bus PT combining unit before, being i.e. equiped with bus PT at every section of bus Intelligent control cabinet and merge single
Unit A and bus PT combining unit B, two combining unit configurations are identical, all have busbar voltage function arranged side by side, all can externally export
I female and II female voltage, for realizing the seamless switching of the active and standby device of busbar voltage, every section of bus Intelligent control cabinet also increases by one
Overlapping complete OLP automatic optical fiber switching device, when two overlap combining units the most under normal circumstances, A set combining unit is as main equipment
Work, B set combining unit, as warm standby, also includes Remote intelligent decision system, Remote intelligent decision
System is automatically caught grab and remotely switching control in order to be realized abnormal information, and described Remote intelligent decision system includes mother
Line volt sensing relay connection circuit and long-distance intelligent switch control logic loop.
The voltage hardware of the bus combining unit duplicate system retrofit of transformer station the most according to claim 1 double bus scheme is even
Connect, it is characterised in that: the voltage of described transformer station's double bus scheme bus combining unit duplicate system retrofit connect also by
Artificial the most remotely or on the spot Non-follow control drives OLP device to switch over.
The voltage of the bus combining unit duplicate system retrofit of transformer station the most according to claim 1 and 2 double bus scheme is hard
Part connects, it is characterised in that: described busbar voltage control relay connection circuit is specially at every section of bus Intelligent control cabinet
Every section of bus protection and metering Secondary Winding install AB, BC phase low-voltage control relay additional, bus-bar potential transformer output electricity
When positive pressure is normal and wiring is normal, relay input coil all has 100V secondary voltage, thus under-voltage replay is failure to actuate；Work as mother
When line voltage transformer output voltage exception and wiring exception, AB, BC phase low-voltage control relay detects that input voltage is low
In 70V, the now actuating of relay, two low-voltage control relay warning signal contacts of I section bus also access this section of mother after connecing
The bus intelligent terminal of line Intelligent control cabinet, two low-voltage control relay warning signal contacts of II section bus are the most also
Access the bus intelligent terminal of this cabinet, bus its I, II section bus protection of PT combining unit device B of increase, measure, open
Mouth voltage input inputs with bus PT combining unit device A and connects, and is all connected to low-voltage control relay rear end, combining unit
Device B working power is opened supply by independent direct current sky, and power supply takes from this section of bus Intelligent control cabinet DC supply input；Device closes
Lock, direct current dead electricity signal access the bus intelligent terminal of this section of bus Intelligent control cabinet, combining unit device A, merging list
Element apparatus B all configures tail optical fiber wire jumper to OLP device input, and each cascaded-branch optical cable wiring is connected to the output of OLP device simultaneously
Holding, the OLP installation's power source of increase is opened supply by independent direct current sky, and it is defeated that power supply takes from this section of bus Intelligent control cabinet DC source
Enter；OLP plant failure signal also accesses the bus intelligent terminal of this section of bus Intelligent control cabinet, utilizes this section of bus intelligence
The two-position of the bus intelligent terminal of switch board is standby to be outputed a little, and concatenation is available for throwing the control of export pressing plate moved back simultaneously, real
The farthest control automatic or manual switching control, output point accesses OLP with artificial on the spot switching control knob newly-increased cashier's office in a shop and after connecing
The switching circuit of device, forms remotely and on the spot optical fiber switching control loop, controls power supply and uses this section of bus Intelligent control cabinet
Bus intelligent terminal working power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620048873.4U CN205583386U (en) | 2016-01-19 | 2016-01-19 | Voltage hardware of double bus scheme's of transformer substation dualization of generating line merging cells configuration is connected |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620048873.4U CN205583386U (en) | 2016-01-19 | 2016-01-19 | Voltage hardware of double bus scheme's of transformer substation dualization of generating line merging cells configuration is connected |
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| Publication Number | Publication Date |
|---|---|
| CN205583386U true CN205583386U (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620048873.4U Expired - Fee Related CN205583386U (en) | 2016-01-19 | 2016-01-19 | Voltage hardware of double bus scheme's of transformer substation dualization of generating line merging cells configuration is connected |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205583386U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712017A (en) * | 2017-03-30 | 2017-05-24 | 山东钢铁股份有限公司 | Double-bus secondary voltage switching circuit and self-holding circuit thereof |
| CN111641260A (en) * | 2020-04-17 | 2020-09-08 | 许继集团有限公司 | Transformer substation process layer on-site module device and control method thereof |
-
2016
- 2016-01-19 CN CN201620048873.4U patent/CN205583386U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712017A (en) * | 2017-03-30 | 2017-05-24 | 山东钢铁股份有限公司 | Double-bus secondary voltage switching circuit and self-holding circuit thereof |
| CN106712017B (en) * | 2017-03-30 | 2023-06-30 | 山东钢铁股份有限公司 | Double-bus secondary voltage switching circuit and self-holding circuit thereof |
| CN111641260A (en) * | 2020-04-17 | 2020-09-08 | 许继集团有限公司 | Transformer substation process layer on-site module device and control method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 |