CN108183641B - 6kV primary voltage balance system - Google Patents
6kV primary voltage balance system Download PDFInfo
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- CN108183641B CN108183641B CN201711496796.4A CN201711496796A CN108183641B CN 108183641 B CN108183641 B CN 108183641B CN 201711496796 A CN201711496796 A CN 201711496796A CN 108183641 B CN108183641 B CN 108183641B
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- 230000005347 demagnetization Effects 0.000 claims abstract description 121
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 238000004891 communication Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/10—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
- H02P9/12—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for demagnetising; for reducing effects of remanence; for preventing pole reversal
- H02P9/123—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for demagnetising; for reducing effects of remanence; for preventing pole reversal for demagnetising; for reducing effects of remanence
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase networks
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses 6kV primary voltage balance systems.Belong to primary voltage balancing technique field, which can carry out primary voltage balance detection and demagnetization to 6kV primary voltage balance system ontology.Including controller, voice prompting device, communication module, degaussing switch device, 6kV primary voltage balance system ontology and for 6kV primary voltage balance system ontology provide the generator of mains power；6kV primary voltage balance system ontology includes by electric range balance detection circuit, and degaussing switch device includes the main on-off control module of No.1, No. two main on-off control modules and demagnetization module；The input terminal of the input terminal of the main on-off control module of No.1, the input terminal of No. two main on-off control modules and demagnetization module is respectively coupled on the power output end of generator；The output end of the main on-off control module of No.1 and the output end of No. two main on-off control modules are respectively coupled on the power input by electric range balance detection circuit.
Description
Technical field
The present invention relates to primary voltage balancing technique fields, and in particular to 6kV primary voltage balance system.
Background technique
When carrying out primary voltage balance detection to 6kV primary voltage balance system ontology, it usually will appear failure, due to
The electricity consumption of 6kV primary voltage balance system ontology is larger, powers off suddenly when 6kV primary voltage balance system ontology breaks down
When, the electric energy that disconnects suddenly or the generator that mains power is provided for 6kV primary voltage balance system ontology is generated huge
Impact even burns out generator when serious.Therefore design it is a kind of can to 6kV primary voltage balance system ontology carry out primary voltage
Balance detection, and when power failure occurs in 6kV primary voltage balance system ontology, also the system of easy burn-out generator does not seem
It is very necessary.
Summary of the invention
The present invention is the above problem in order to solve existing 6kV primary voltage balance system ontological existence, provides a kind of 6kV
Primary voltage balance system, the system can to 6kV primary voltage balance system ontology carry out primary voltage balance detection, and
When power failure occurs in 6kV primary voltage balance system ontology, demagnetization operation can be carried out to generator automatically, protect generator not
It can be because the case where 6kV primary voltage balance system ontology power failure occurs and generator is caused to be burned appearance, extends hair
The service life of motor.
The above technical problem is solved through the following technical scheme:
6kV primary voltage balance system, including controller, voice prompting device, communication module, degaussing switch device, 6kV into
Line voltage balance system ontology and the generator of mains power is provided for 6kV primary voltage balance system ontology；6kV primary voltage
Balance system ontology include by electric range balance detection circuit, the degaussing switch device include the main on-off control module of No.1,
No. two main on-off control modules and demagnetization module；The input terminal of the main on-off control module of No.1, No. two main on-off control mould
The input terminal of block and the input terminal of demagnetization module are respectively coupled on the power output end of generator；The main on-off control of No.1
The output end of molding block and the output end of No. two main on-off control modules are respectively coupled by electric range balance detection circuit
On power input；The voice prompting device, communication module, the control terminal of 6kV primary voltage balance system ontology, No.1 master are logical
The control terminal of the control terminal of disconnected control module, the control terminal of No. two main on-off control modules and demagnetization module connects with controller respectively
It connects.
When power failure occurs in 6kV primary voltage balance system ontology, demagnetization module starts immediately carries out generator
Demagnetization operation, so that generator be protected to be not easy to be burned.This programme can carry out inlet wire electricity to 6kV primary voltage balance system ontology
Balance detection is pressed, and when power failure occurs in 6kV primary voltage balance system ontology, demagnetization work can be carried out to generator automatically
Industry, protection generator power failure will not occur because of 6kV primary voltage balance system ontology and generator caused to be burned
Situation occurs, and extends the service life of generator.
Preferably, by electric range balance detection circuit include 220kV booster stations, 220kV main bus-bar, 220kV pair bus,
B sections of 220kV bus connection switch, Qi Beibian, 6kV A sections of station-service electric units and 6kV station-service electric units；Two of 220kV booster stations
Electrode output be connected on 220kV main bus-bar and 20kV pair bus on；20kV main bus-bar and 220kV pair bus are standby to opening
Become and connected using overhead transmission line, and is equipped with 220KV on overhead transmission line and opens for switch is become；Distinguish at the both ends of 220kV bus connection switch
Be connected on 220kV pair bus and 220kV main bus-bar on；A sections of station-service electric units of 6kV are connected with standby become is opened, B sections of station-services of 6kV
Electric unit also with open standby become and connect；The output end of the main on-off control module of No.1 and the output end of No. two main on-off control modules are all
It is connected on the power input of 220kV booster stations.
After opening standby become by electricity, the section primary voltage mutual inductor electrification of low-pressure side 6kVA, B, 6kV A, B sections of inlet wires are protected at this time
PT abnormal alarm is sent out on protection unit and generator-transformer protection device, testing crew checks whether primary voltage, discovery voltage put down
Weighing apparatus.
Preferably, further including No.1 node and No. two nodes, the main on-off control module of No.1 includes No.1 left-handed opening, one
Number relay and the right switch of No.1, No. two main on-off control modules include No. two left-handed openings, No. two relays and No. two right switches,
Demagnetization module includes demagnetization left-handed opening, demagnetization relay, the right switch of demagnetization and de-excitation resistance；
The left end of the left end of No.1 left-handed opening, the left end of No. two left-handed openings and demagnetization left-handed opening is connected to No.1 node
On；The right end of No.1 left-handed opening is connected to the left end of No.1 relay, and the right end of No.1 relay is connected to the right switch of No.1
Left end, the right end of the right switch of No.1 are connected on No. two nodes；The right end of No. two left-handed openings is connected to the left end of No. two relays,
The right end of No. two relays is connected to the left end of No. two right switches, and the right end of No. two right switches is connected on No. two nodes；Demagnetization
Left-handed opening right end is connected to the left end of demagnetization relay, and the right end of demagnetization relay is connected to the left end of the right switch of demagnetization, demagnetization
The right end of right switch is connected on de-excitation resistance；The power input of 220kV booster stations is connected on No. two nodes；Generator
Power output end is connected on No.1 node；
The control terminal of the right switch of the control terminal of No.1 left-handed opening, the control terminal of No.1 relay, No.1, No. two left-handed openings
Control terminal, the control terminal of No. two relays, the control terminals of No. two right switches, the control terminal of demagnetization left-handed opening, demagnetization relay
Control terminal and the control terminal of the right switch of demagnetization are connect with controller respectively.
This structure can be right respectively in No. two main on-off control module free time or when No.1 main on-off control module free time
It carries out switch opening/closing time detection, high reliablity.
Preferably, the demagnetization control of degaussing switch device is as follows: setting the main on-off control module of No.1 and issued from controller
No.1 open command starts a length of T1 when disconnection reaction needed for completing disconnection movement to the main on-off control module of No.1, if No. two
Main on-off control module completes disconnection to No. two main on-off control modules since controller issues No. two open commands and acts institute
A length of T2 when the disconnection reaction needed, if demagnetization module is completed to be connected since controller issues demagnetization turn-on command to demagnetization module
A length of T3 when conducting reaction needed for movement；If when needed for the demagnetization switching of generator system corresponding to degaussing switch device
Between be H；When the main on-off control module conducting of No.1, No. two main on-off control modules are then in an off state, and are being controlled at this time
The value and demagnetization module conducting reaction duration T3 of the disconnection reaction duration T2 of No. two main on-off control modules are detected under the control of device
Value；Calculate demagnetization module be conducting to No. two main on-off control modules disconnect between time difference H2, then H2=| T2-T3 |≤
H；When it is back to back to carry out demagnetization operation in the case where No. two main on-off control modules are connected next time when, if working as T2-T3
When >=0, then the H2 time internal controller after No. two open commands start is issued just to No. two main on-off control modules in controller
Demagnetization turn-on command is issued to demagnetization module；If being sent out in controller to No. two main on-off control modules as T2-T3 < 0
H2 time internal controller before No. two open commands start out will issue demagnetization turn-on command to demagnetization module；When No. two masters are logical
When disconnected control module conducting, the main on-off control module of No.1 is then in an off state, and detects one under the control of the controller at this time
The value of the disconnection reaction duration T1 of number main on-off control module and the value of demagnetization module conducting reaction duration T3；Calculate demagnetization mould
Block be conducting to the main on-off control module of No.1 disconnect between time difference H1, then H1=| T1-T3 |≤H；When it is back to back next time
When carrying out demagnetization operation in the case where No.1 main on-off control module conducting, if as T1-T3 >=0, controller to
The main on-off control module of No.1, which issues the H1 time internal controller after No.1 open command starts and will issue to demagnetization module, goes out
Magnetic turn-on command；If issuing No.1 open command as T1-T3 < 0 to the main on-off control module of No.1 in controller and starting
Preceding H1 time internal controller will issue demagnetization turn-on command to demagnetization module.
Preferably, when duration T1 is reacted in the disconnection for detecting the main on-off control module of No.1, under the control of the controller,
No.1 left-handed opening and the right switch of No.1 is first allowed all to disconnect, duration, the No.1 relay are reacted in the disconnection for then detecting No.1 relay
The disconnection reaction duration of device is T1；Detected No.1 relay disconnection reaction duration T1 after then by No.1 left-handed opening and one
Number right switch is all closed, and No.1 relay is allowed to be in an off state；In the disconnection reaction of No. two main on-off control modules of detection
When duration T2, under the control of the controller, first allows No. two left-handed openings and No. two right switches all to disconnect, then detect No. two relays
Disconnection react duration, No. two relays disconnection reaction duration be T2；When having detected the disconnection reaction of No. two relays
Then the right switch of No. two left-handed openings and No. two is all closed after long T2, and No. two relays is allowed to be in an off state；It goes out in detection
When magnetic module conducting reaction duration T3, under the control of the controller, demagnetization left-handed opening and the right switch of demagnetization is first allowed all to disconnect, then
The closed reaction duration of demagnetization relay is detected, the closed reaction duration of the demagnetization relay is T3；Demagnetization relay is detected
Then the right switch of demagnetization left-handed opening and demagnetization is all closed after the closed reaction duration T3 of device, and allows demagnetization relay to be in and disconnects
State.
Preferably, if the main on-off control module of No.1 and No. two main on-off control modules all on state in the case of
Demagnetization process be, when T1 < T2 if in demagnetization, the main on-off control module of No.1 is disconnected in No. two main on-off control modules
It is first disconnected before opening；Conversely, No. two main on-off control modules will control mould in the main on-off of No.1 if when T1 > T2 in demagnetization
Block first disconnects before disconnecting.
The present invention can reach following effect:
When power failure occurs in 6kV primary voltage balance system ontology, demagnetization module starts immediately to power generation the present invention
Machine carries out demagnetization operation, so that generator be protected to be not easy to be burned.This programme is also able to achieve high-tension cable in zero load situation
Differential protection verification, and when power failure occurs in 6kV primary voltage balance system ontology, demagnetization can be carried out to generator automatically
Operation, protection generator power failure will not occur because of 6kV primary voltage balance system ontology and generator caused to be burned
The case where occur, extend the service life of generator.Structure is simple, and safety is good, high reliablity.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of circuit principle connecting structure of the invention.
Fig. 2 is a kind of circuit theory connection structure schematic block diagram of the invention.
Fig. 3 is a kind of schematic diagram of circuit principle connecting structure of the present invention by electric range balance detection circuit.
Specific embodiment
The present invention will be further described below with reference to the accompanying drawings and embodiments.
Embodiment: 6kV primary voltage balance system, it is shown referring to figures 1-3.Including controller w4, voice prompting device
W20, communication module w21, degaussing switch device w19,6kV primary voltage balance system ontology w18 and for 6kV primary voltage balance
The generator w17 of system ontology offer mains power；6kV primary voltage balance system ontology includes by electric range balance detection electricity
Road w29, degaussing switch device include the main on-off control module w1 of No.1, No. two main on-off control module w2 and demagnetization module w3；
The input terminal of the input terminal of the main on-off control module of No.1, the input terminal of No. two main on-off control modules and demagnetization module is all distinguished
It is connected on the power output end of generator；The output end of the main on-off control module of No.1 and No. two main on-off control modules it is defeated
Outlet is respectively coupled on the power input by electric range balance detection circuit；Voice prompting device, communication module, 6kV into
The control of the control terminal of the main on-off control module of control terminal, the No.1 of line voltage balance system ontology, No. two main on-off control modules
The control terminal of end processed and demagnetization module is connect with controller respectively.
It is included 220kV booster stations w23,220kV main bus-bar, 220kV pair bus, 220kV by electric range balance detection circuit
Bus connection switch w25, standby change B sections of w26,6kV A sections of station-services electric unit w27 and 6kV station-service electric unit w28 are opened；220kV booster stations
Two electrode outputs be connected on 220kV main bus-bar and 20kV pair bus on；20kV main bus-bar and 220kV pair bus
It is connected to standby change is opened using overhead transmission line, and is equipped with 220KV on overhead transmission line and opens standby change switch w24；220kV bus connection switch
Both ends be connected on 220kV pair bus and 220kV main bus-bar on；A sections of station-service electric units of 6kV are connected with standby become is opened, 6kV
B sections of station-service electric units also with open standby become and connect；The output end of the main on-off control module of No.1 and No. two main on-off control modules
Output end is respectively coupled on the power input of 220kV booster stations.
It further include No.1 node w5 and No. two node w6, the main on-off control module of No.1 includes No.1 left-handed opening w7, No.1
Relay w8 and the right switch w9 of No.1, No. two main on-off control modules include No. two left-handed opening w10, No. two relay w11 and two
Number right switch w12, demagnetization module includes demagnetization left-handed opening w13, demagnetization relay w14, the right switch w15 of demagnetization and de-excitation resistance
w16；
The left end of the left end of No.1 left-handed opening, the left end of No. two left-handed openings and demagnetization left-handed opening is connected to No.1 node
On；The right end of No.1 left-handed opening is connected to the left end of No.1 relay, and the right end of No.1 relay is connected to the right switch of No.1
Left end, the right end of the right switch of No.1 are connected on No. two nodes；The right end of No. two left-handed openings is connected to the left end of No. two relays,
The right end of No. two relays is connected to the left end of No. two right switches, and the right end of No. two right switches is connected on No. two nodes；Demagnetization
Left-handed opening right end is connected to the left end of demagnetization relay, and the right end of demagnetization relay is connected to the left end of the right switch of demagnetization, demagnetization
The right end of right switch is connected on de-excitation resistance；The power input of 220kV booster stations is connected on No. two nodes；Generator
Power output end is connected on No.1 node；
The control terminal of the right switch of the control terminal of No.1 left-handed opening, the control terminal of No.1 relay, No.1, No. two left-handed openings
Control terminal, the control terminal of No. two relays, the control terminals of No. two right switches, the control terminal of demagnetization left-handed opening, demagnetization relay
Control terminal and the control terminal of the right switch of demagnetization are connect with controller respectively.
The demagnetization control of 6kV primary voltage balance system is as follows:
If the main on-off control module of No.1 is since controller issues No.1 open command to the main on-off control module of No.1
A length of T1 when disconnection reaction needed for completing disconnection movement,
If No. two main on-off control modules are since controller issues No. two open commands to No. two main on-off control modules
A length of T2 when disconnection reaction needed for completing disconnection movement,
If demagnetization module is completed to lead needed for turn-on action since controller issues demagnetization turn-on command to demagnetization module
A length of T3 when logical reaction；
If the time needed for the demagnetization switching of generator system corresponding to 6kV primary voltage balance system is H；
When the main on-off control module conducting of No.1, No. two main on-off control modules are then in an off state, and are being controlled at this time
The value and demagnetization module conducting reaction duration of the disconnection reaction duration T2 of No. two main on-off control modules are detected under the control of device processed
The value of T3；Calculate demagnetization module be conducting to No. two main on-off control modules disconnect between time difference H2, then have H2=| T2-T3
|≤H；When it is back to back to carry out demagnetization operation in the case where No. two main on-off control modules are connected next time when, if working as T2-
When T3 >=0, then the H2 time internal controller after No. two open commands start is issued to No. two main on-off control modules in controller
Demagnetization turn-on command will be issued to demagnetization module；If when T2-T3 < 0, being sent out in controller to No. two main on-off control modules
H2 time internal controller before No. two open commands start out will issue demagnetization turn-on command to demagnetization module；
When No. two main on-off control modules are connected, the main on-off control module of No.1 is then in an off state, and is being controlled at this time
The value and demagnetization module conducting reaction duration of the disconnection reaction duration T1 of the main on-off control module of No.1 are detected under the control of device processed
The value of T3；Calculate demagnetization module be conducting to the main on-off control module of No.1 disconnect between time difference H1, then have H1=| T1-T3
|≤H；When it is back to back to carry out demagnetization operation in the case where No.1 main on-off control module conducting next time when, if working as T1-
When T3 >=0, then the H1 time internal controller after No.1 open command starts is issued to the main on-off control module of No.1 in controller
Demagnetization turn-on command will be issued to demagnetization module；If when T1-T3 < 0, being sent out in controller to the main on-off control module of No.1
H1 time internal controller before No.1 open command starts out will issue demagnetization turn-on command to demagnetization module.
When duration T1 is reacted in the disconnection for detecting the main on-off control module of No.1, under the control of the controller, No.1 is first allowed
Left-handed opening and the right switch of No.1 all disconnect, and duration, the disconnection of the No.1 relay are reacted in the disconnection for then detecting No.1 relay
Reacting duration is T1；Detected No.1 relay disconnection reaction duration T1 after then by No.1 left-handed opening and the right switch of No.1
It is all closed, and No.1 relay is allowed to be in an off state；
When duration T2 is reacted in the disconnection for detecting No. two main on-off control modules, under the control of the controller, No. two are first allowed
Left-handed opening and No. two right switches all disconnect, and duration, the disconnection of No. two relays are reacted in the disconnection for then detecting No. two relays
Reacting duration is T2；Detected No. two relays disconnection reaction duration T2 after then by No. two left-handed openings and No. two right switches
It is all closed, and No. two relays is allowed to be in an off state；
When detecting demagnetization module conducting reaction duration T3, under the control of the controller, demagnetization left-handed opening and demagnetization are first allowed
Right switch all disconnects, and then detects the closed reaction duration of demagnetization relay, and the closed reaction duration of the demagnetization relay is
T3；Then the right switch of demagnetization left-handed opening and demagnetization is all closed after having detected the closed reaction duration T3 of demagnetization relay, and is allowed
Demagnetization relay is in an off state.
If the main on-off control module of No.1 and No. two main on-off control modules are all in the demagnetization mistake in the case of on state
Cheng Shi, when T1 < T2 if in demagnetization, the main on-off control module of No.1 will be before No. two main on-off control modules disconnect first
It disconnects；Conversely, No. two main on-off control modules will disconnect it in the main on-off control module of No.1 if when T1 > T2 in demagnetization
It is preceding first to disconnect.
After opening standby become by electricity, the section primary voltage mutual inductor electrification of low-pressure side 6kVA, B, 6kV A, B sections of inlet wires are protected at this time
PT abnormal alarm is sent out on protection unit and generator-transformer protection device, testing crew checks whether primary voltage, discovery voltage put down
Weighing apparatus.
Using the preferable voltage transformer of excitation property；The star-like capacitor of three-phase of neutral ground is installed on 6kV bus
Device group；Increase damping resistance on 6kV primary voltage mutual inductor secondary side open-triangular winding.
Under 6kV bus light condition, temporarily accessed on A sections of primary voltage mutual inductor secondary side open-triangular windings of 6kV
One 50 Ω slide-wire rheostat, is gradually reduced resistance, observes and records the variation of 6kV primary voltage amplitude and flows through slide-wire rheostat
Current value, data are as follows:
Implement two
Under 6kV bus light condition, temporarily connect on B sections of primary voltage mutual inductor secondary side open-triangular windings of 6kV
Enter a 50 Ω slide-wire rheostats, be gradually reduced resistance, observe and record the variation of 6kV primary voltage amplitude and flows through slip variable resistance
Device current value, data are as shown in the table:
The present embodiment can be right respectively in No. two main on-off control module free time or when No.1 main on-off control module free time
It carries out switch opening/closing time detection, high reliablity.When there is power failure in 6kV primary voltage balance system ontology, demagnetization
Module starts immediately carries out demagnetization operation to generator, so that generator be protected to be not easy to be burned.The present embodiment is in zero load feelings
Also the verification of high-tension cable differential protection is able to achieve under condition, and when power failure occurs in 6kV primary voltage balance system ontology, energy
Automatically demagnetization operation is carried out to generator, electric power event will not occur because of 6kV primary voltage balance system ontology in protection generator
The case where hindering and generator is caused to be burned appearance extends the service life of generator.Structure is simple, and safety is good, reliability
It is high.
Embodiments of the present invention are described above in conjunction with attached drawing, however, the implementation is not limited to the above embodiments, this field
Those of ordinary skill can be with various changes and modifications may be made within the scope of the appended claims.
Claims (1)
1.6kV primary voltage balance system, which is characterized in that including controller, voice prompting device, communication module, degaussing switch
Device, 6kV primary voltage balance system ontology and the generator of mains power is provided for 6kV primary voltage balance system ontology；
6kV primary voltage balance system ontology includes by electric range balance detection circuit, and the degaussing switch device includes that No.1 master is logical
Disconnected control module, No. two main on-off control modules and demagnetization module；The input terminal of the main on-off control module of No.1, No. two masters
The input terminal of on-off control module and the input terminal of demagnetization module are respectively coupled on the power output end of generator；Described one
Number output end of main on-off control module and the output end of No. two main on-off control modules are respectively coupled to be balanced by electric range
On the power input of detection circuit；The control of the voice prompting device, communication module, 6kV primary voltage balance system ontology
End, the control terminal of the main on-off control module of No.1, the control terminal point of the control terminal of No. two main on-off control modules and demagnetization module
It is not connect with controller；
It is included that 220kV booster stations, 220kV main bus-bar, 220kV pair bus, 220kV mother are opened by electric range balance detection circuit
B sections of pass, Qi Beibian, 6kV A sections of station-service electric units and 6kV station-service electric units；Two electrode outputs of 220kV booster stations point
Be not connected on 220kV main bus-bar and 220kV pair bus on；220kV main bus-bar and 220kV pair bus become to opening using aerial
Connection, and be equipped with 220KV on overhead transmission line and open standby change switch；The both ends of 220kV bus connection switch are connected to 220kV
On secondary bus and on 220kV main bus-bar；A sections of station-service electric units of 6kV and open standby become and connect, B sections of station-service electric units of 6kV also with open
It is standby to become connection；The output end of the main on-off control module of No.1 and the output end of No. two main on-off control modules are respectively coupled
On the power input of 220kV booster stations；
It further include No.1 node and No. two nodes, the main on-off control module of No.1 includes No.1 left-handed opening, No.1 relay
With the right switch of No.1, No. two main on-off control modules include No. two left-handed openings, No. two relays and No. two right switches, described
Demagnetization module includes demagnetization left-handed opening, demagnetization relay, the right switch of demagnetization and de-excitation resistance；
The left end of the left end of the No.1 left-handed opening, the left end of No. two left-handed openings and demagnetization left-handed opening is connected to No.1 node
On；The right end of the No.1 left-handed opening is connected to the left end of No.1 relay, and the right end of No.1 relay is connected to the No.1 right side and opens
The left end of pass, the right end of the right switch of No.1 are connected on No. two nodes；The right end of No. two left-handed openings is connected to No. two relays
The left end of device, the right end of No. two relays are connected to the left end of No. two right switches, and the right end of No. two right switches is connected to No. two sections
Point on；Demagnetization left-handed opening right end is connected to the left end of demagnetization relay, and the right end of demagnetization relay is connected to the right switch of demagnetization
The right end of left end, the right switch of demagnetization is connected on de-excitation resistance；The power input of 220kV booster stations is connected to No. two nodes
On；The power output end of generator is connected on No.1 node；
The control of the control terminal of the right switch of the control terminal of No.1 left-handed opening, the control terminal of No.1 relay, No.1, No. two left-handed openings
The control at end, the control terminal of No. two relays, the control terminal, the control terminal, demagnetization relay of demagnetization left-handed opening of No. two right switches
The control terminal of end and the right switch of demagnetization is connect with controller respectively.
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| CN201711496796.4A CN108183641B (en) | 2017-12-31 | 2017-12-31 | 6kV primary voltage balance system |
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| CN201711496796.4A CN108183641B (en) | 2017-12-31 | 2017-12-31 | 6kV primary voltage balance system |
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| CN108183641A CN108183641A (en) | 2018-06-19 |
| CN108183641B true CN108183641B (en) | 2019-10-08 |
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| CN112834869A (en) * | 2021-01-11 | 2021-05-25 | 中国能源建设集团华东电力试验研究院有限公司 | Differential protection calibration system for large-length submarine cable in no-load state |
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| CN2327111Y (en) * | 1997-04-24 | 1999-06-30 | 刘宏德 | Permanent magnet apparatus of increasing residual magentic field of large-medium water-wheel generator rotor |
| CN1084536C (en) * | 1999-09-06 | 2002-05-08 | 侯万英 | Automatic demagnetizing and slip over-voltage protecting unit for large electric generator |
| ES2571222T3 (en) * | 2009-04-17 | 2016-05-24 | Vestas Wind Sys As | Wind farm, voltage imbalance correction procedure, and wind turbine |
| CN101741098A (en) * | 2009-12-22 | 2010-06-16 | 辽宁电力控制技术有限公司 | Back pressure type steam turbine generator unit access station service electrical system |
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Effective date of registration: 20240902 Address after: 311217, 2nd Floor, Building 2, No. 99 Gaoxin 8th Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province, China Patentee after: CHINA EAST CHINA ELECTRIC POWER TEST RESEARCH INSTITUTE Co.,Ltd. Country or region after: China Patentee after: BEIJING NORTH-STAR TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: No.198, Qidi Road, Xiaoshan Economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: CHINA EAST CHINA ELECTRIC POWER TEST RESEARCH INSTITUTE Co.,Ltd. Country or region before: China |