CN209658909U - A kind of Auxiliary System in Power Plant interacted system - Google Patents
A kind of Auxiliary System in Power Plant interacted system Download PDFInfo
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- CN209658909U CN209658909U CN201920769822.4U CN201920769822U CN209658909U CN 209658909 U CN209658909 U CN 209658909U CN 201920769822 U CN201920769822 U CN 201920769822U CN 209658909 U CN209658909 U CN 209658909U
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Abstract
A kind of Auxiliary System in Power Plant interacted system of the utility model realizes that the interconnection between station service is mutually standby, promotes Power Plant Accident situation emergency capability, while can save the outsourcing electricity charge, promotes unit and manages economy.It, which includes that No. 1 generator, No. 2 generators, No. 3 generators, No. 4 generators and #01 high are standby, becomes ST；Inter-bay and several interconnection switches；No. 1 generator becomes 1A sections of the generator station service of T1A connection 1 and 1B sections through #1A high factory, becomes 1C sections of the generator station service of T1B connection 1 through #1B high factory；No. 2 generators become 2A sections of the generator station service of T2A connection 2 and 2B sections through #2A high factory, become 2C sections of the generator station service of T2B connection 2 through #2B high factory；No. 3 generators become 3A sections of the generator station service of T3 connection 3 and 3B sections through #3A high factory；No. 4 generators become 4A sections of the generator station service of T4 connection 4 and 4B sections through #4A high factory.
Description
Technical field
The utility model belongs to Auxiliary System in Power Plant technical field, and in particular to a kind of Auxiliary System in Power Plant interacted system.
Background technique
As China's economic development enters new normality, the structure of power supply is kept reforming, in the increasingly deficient of traditional energy
In the case where weary and environment deterioration increasingly, new energy installation is grown rapidly, and new energy grid-connected power scale also quickly rises, with
Thermoelectricity based on traditional fossil energy is constantly declined using hourage.With economic development, environmental requirement, structural adjustment, fire
Electric industry can be gradually reduced in the specific gravity of entire power field, and this requires Thermal Power Enterprises constantly self-optimizations to adjust, and be utilized
New technology upgrading reduces entreprise cost, improves the performance of enterprises.
Every machine of existing power plant major part unit configures several segments 6kV or 10kV bus, if one or more has load
Pressure regulation three winding divides or two-winding transformer, is connected between transformer and switchgear using common box bus in factory.Full factory simultaneously
The standby change of 1 on-load voltage regulation tripartition winding height is configured, the Auxiliary System of every unit is given to power respectively by common box bus.Work as machine
When group operates normally, the station-service electric load of every unit is become by respective high pressure factory respectively powers, when one or several units need
When overhauling, station service overhauls load and passes through the anti-power transmission of main transformer or the spare change power supply of #01 high pressure.Existing Auxiliary System in Power Plant is main
Have the following problems: (1) station service electrical system safety needs to be further increased: certain unit is since nature or human accident lose
Station-service working power or backup power source, diesel-driven generator cannot normally start again at this time, and will lead to unit power loss cannot normally stop
Machine brings very big security risk to power plant；(2) unit maintenance is at high cost: the height used during every unit maintenance is standby become with
And main transformer opposite direction power transmission electricity belongs to outer power purchase, price is higher, increases power plant operation cost.
Utility model content
Aiming at the problems existing in the prior art, the utility model provides a kind of Auxiliary System in Power Plant interacted system, realizes
Interconnection between station service is mutually standby, promotes Power Plant Accident situation emergency capability, while can save the outsourcing electricity charge, promotes unit warp
Seek economy.
The utility model is to be achieved through the following technical solutions:
A kind of Auxiliary System in Power Plant interacted system, including No. 1 generator, No. 2 generators, No. 3 generators, No. 4 generators
With the standby change ST of #01 high；Inter-bay and several interconnection switches；
No. 1 generator becomes 1A sections of the generator station service of T1A connection 1 and 1B sections through #1A high factory, becomes through #1B high factory
1C sections of the generator station service of T1B connection 1；
No. 2 generators become 2A sections of the generator station service of T2A connection 2 and 2B sections through #2A high factory, become through #2B high factory
2C sections of the generator station service of T2B connection 2；
No. 3 generators become 3A sections of the generator station service of T3 connection 3 and 3B sections through #3A high factory；
No. 4 generators become 4A sections of the generator station service of T4 connection 4 and 4B sections through #4A high factory；
The standby A side bus BUSA that becomes of the standby height for becoming ST of the #01 high is separately connected A sections and No. 1 of four generator station services
1C sections of generator station service；
The standby B side bus BUSB that becomes of the standby height for becoming ST of the #01 high is separately connected B sections and No. 2 of four generator station services
2C sections of generator station service；
One end of interconnection switches connects inter-bay；The other end connects one to one 1A sections, 1B sections of No. 1 generator station service
With 1C sections and No. 2 2A sections, 2B sections and 2C sections of generator station service；No. 1 generator and No. 2 power generations by inter-bay connection
Machine electricity consumption interconnection power supply.
Preferably, several interconnection switches include the first interconnection switches, the second interconnection switches, third interconnection switches, the 4th mutually
Connection switch, the 5th interconnection switches and the 6th interconnection switches；The interconnection switches and inter-bay are used for No. 1 generator and No. 2
The electricity consumption of generator interconnects power supply；
First interconnection switches one end is connected with No. 1 1A sections of generator station service, and the other end is connected with inter-bay；
Second interconnection switches one end is connected with No. 1 1B sections of generator station service, and the other end is connected with inter-bay；
Third interconnection switches one end is connected with No. 1 1C sections of generator station service, and the other end is connected with joined bus；
Described 4th interconnection switches one end is connected with No. 2 2A sections of generator station service, and the other end is connected with inter-bay；
Described 5th interconnection switches one end is connected with No. 2 2B sections of generator station service, and the other end is connected with inter-bay；
Described 6th interconnection switches one end is connected with No. 2 2C sections of generator station service, and the other end is connected with inter-bay.
Further, when No. 1 generator and No. 2 generators operate normally,
First interconnection switches, the second interconnection switches, third interconnection switches, the 4th interconnection switches, the 5th interconnection switches
Disconnection or testing position are in the 6th interconnection switches；
No. 1 generator and No. 2 generator outlet breakers be in coincidence, No. 1 generator and No. 2 generator station services into
Line breaker is in coincidence, and No. 1 generator and No. 2 generator station service back-up breakers are in quartile.
Further, when No. 1 generator maintenance power supply is provided by No. 2 generator interconnections,
First interconnection switches, the second interconnection switches, third interconnection switches and the 6th interconnection switches are in closed form
State, the 4th interconnection switches and the 5th interconnection switches are in disconnection or testing position；
No. 1 generator outlet breaker is in open position, and No. 2 generator outlet breakers are in coincidence, No. 1 generator
Station service incoming breaker and back-up breaker are in open position, and No. 2 generator station service incoming breakers are in coincidence,
No. 2 generator station service back-up breakers are in open position.
Preferably, when No. 1 generator maintenance power supply is provided by No. 2 generator interconnections,
4th interconnection switches, the 5th interconnection switches are in disconnection or testing position, first interconnection switches, second
Interconnection switches, third interconnection switches and the 6th interconnection switches are in operating position, 2C sections of station service and station service 1A, 1B, 1C
Section interconnection.
Further, when No. 2 generator maintenance power supplys are provided by No. 1 generator interconnection,
The third interconnection switches, the 4th interconnection switches, the 5th interconnection switches and the 6th interconnection switches are in closed form
State,
First interconnection switches, the second interconnection switches are in disconnection or testing position；At No. 2 generator outlet breakers
In open position, No. 1 generator outlet breaker is in coincidence, and No. 2 generator station service incoming breakers, back-up breakers are equal
In open position, No. 1 generator station service incoming breaker is in coincidence, No. 1 generator station service back-up breaker
In open position.
Further, when No. 2 generator maintenance power supplys are provided by No. 1 generator interconnection,
First interconnection switches, the second interconnection switches are in disconnection or testing position, the third interconnection switches, the 4th
Interconnection switches, the 5th interconnection switches, the 6th interconnection switches are in operating position, and 1C sections and station service 2A, 2B, 2C sections of station service is mutually
Connection.
Compared with prior art, the utility model has technical effect beneficial below:
The utility model realizes station service interconnection by the inter-bay of setting, respectively installs an interconnection in station service section and opens
Pass is connect with inter-bay, and by the operation of interconnection switches, the station service during maintenance may be implemented arbitrarily is interconnected, so as to
From the auxiliary bus bar of operating unit to maintenance unit auxiliary bus bar power supply, it is mutually standby to realize Auxiliary System in Power Plant interconnection, improves and exists
The safety of unit station service under extreme case implements station service interconnection so that having the ability that station service mutually supplies between unit
It realizes that the interconnection between station service is mutually standby, promotes power plant's emergency capability, improve the flexibility of unit station service indirectly, while can be a large amount of
The outsourcing electricity charge are saved, the maintenance cost during power plant's maintenance is reduced.
Further, the utility model is in maintenance main transformer and high standby change or the feelings of the anti-power transmission of main transformer and high standby change system power loss
Under condition, the safety of unit service power is ensured, by station service mutually for ensuring that the power supply of unit station service is reliable, stablizing, mention indirectly
High unit station service flexibility.
Detailed description of the invention
Fig. 1 is that Auxiliary System in Power Plant interconnects schematic diagram in system described in the utility model；
Fig. 2 is that power plant unit operates normally schematic diagram in system described in the example of the utility model；
Fig. 3 provides maintenance power supply interconnection original for No. 2 generators in system described in the example of the utility model for No. 1 generator
Reason figure；
Fig. 4 provides maintenance power supply interconnection original for No. 1 generator in system described in the example of the utility model for No. 2 generators
Reason figure.
In figure: No. 1 generator W1；No. 2 generator W2；No. 3 generator W3；No. 4 generator W4；#1A high factory becomes T1A；#1B
High factory becomes T1B；#2A high factory becomes T2A；#2B high factory becomes T2B；#01 high is standby to become ST；#3 high factory becomes T3；#4 high factory becomes T4；First mutually
Join switch 161a；Second interconnection switches 161b；Third interconnection switches 161c；124 switch K124；High standby change A side bus BUSA；It is high
It is standby to become B side bus BUSB；4th interconnection switches 162a；5th interconnection switches 162b；6th interconnection switches 162c；Inter-bay
BUS；601a, 601b, 601c, 602a, 602b, 602c, 603a, 603b, 604a, 604b, 6kV, 061a, 061b, 061c,
062a, 062b, 062c, 063a, 063b, 064a and 064b are fast switching device；801,802,803,804 be that machine set outlet is disconnected
Road device.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, it is described be the explanation to the utility model and
It is not to limit.
As shown in Figure 1, a kind of Auxiliary System in Power Plant interacted system of the utility model, including the first interconnection switches 161a,
Two interconnection switches 161b, third interconnection switches 161c, the 4th interconnection switches 162a, the 5th interconnection switches 162b, the 6th interconnection are opened
Close 162c and inter-bay BUS；Wherein, described one end first interconnection switches 161a is connected with No. 1 1A sections of generator W1 station service,
The other end is connected with the inter-bay BUS；The 1B sections of phases in described one end second interconnection switches 161b and No. 1 generator W1 station service
Even, the other end is connected with the inter-bay BUS；Described one end third interconnection switches 161c and No. 1 generator W1 station service 1C
Duan Xianglian, the other end are connected with the inter-bay BUS；Described 4th one end interconnection switches 162a and No. 2 generator W2 station-services
Electric 2A sections is connected, and the other end is connected with the inter-bay BUS；Described 5th one end interconnection switches 162b and No. 2 generator W2
2B sections of station service are connected, and the other end is connected with the inter-bay BUS；Described 6th one end interconnection switches 162c and No. 2 power generations
2C sections of machine W2 station service are connected, and the other end is connected with the inter-bay BUS；The first interconnection switches 161a, the second interconnection
Switch 161b, third interconnection switches 161c, the 4th interconnection switches 162a, the 5th interconnection switches 162b, the 6th interconnection switches 162c
With inter-bay BUS for realizing No. 1 generator W1 and No. 2 generator W2 station service interconnection power supplies.
As shown in Fig. 2, when No. 1 generator W1, No. 2 generator W2 are operated normally, the first interconnection switches 161a, second
Interconnection switches 161b, third interconnection switches 161c, the 4th interconnection switches 162a, the 5th interconnection switches 162b and the 6th interconnection switches
162c is in disconnection or testing position, and No. 1 generator W1, No. 2 generator W2 outlet breakers are in coincidence, described
No. 1 generator W1, No. 2 generator W2 station service incoming breakers are in coincidence, No. 1 generator W1, No. 2 generator W2
Station service back-up breaker is in quartile.
Unit operates normally, and the 6kV service power of every unit is become by respective high factory powers, machine set outlet 801,
802 breakers are in coincidence；601a, 601b, 601c, 602a, 602b, 602c, 603a, 603b, 604a, 604b, 6kV inlet wire open circuit
Device is in coincidence；061a, 061b, 061c, 062a, 062b, 062c, 063a, 063b, 064a, 064b, 6kV back-up breaker are dividing
Position.
As shown in figure 3, No. 1 generator W1 maintenance power supply is provided by No. 2 generator W2 interconnections, first interconnection switches
161a, the second interconnection switches 161b, third interconnection switches 161c, the 6th interconnection switches 162c are in closed state, and described
Four interconnection switches 162a, the 5th interconnection switches 162b are in disconnection or testing position；At No. 1 generator W1 outlet breaker
In open position, No. 2 generators W2 outlet breaker is in coincidence, No. 1 generator W1 station service incoming breaker,
Back-up breaker is in open position.
No. 2 generators W2 station service incoming breaker is in coincidence, the spare open circuit of No. 2 generators W2 station service
Device is in open position；1A, 1B, 1C sections of the 6kV station service of No. 1 generator W1 2C sections by No. 2 generator W2 are powered at this time, and 1
It is that 810A, 1C sections of maintenance electric currents are that 1A sections of normal service electric currents of 6kV station service of number generator W1, which are 751A, 1B sections of maintenance electric currents,
2C sections of oepration at full load electric currents of 6kV station service of 785A, No. 2 generator W2 are 403A, and #2B high factory becomes total running current as 751+
810+785+403=2749A, #2B high factory become total working capacity 1.732*6300*2749=30MVA, and #2B high factory becomes specified appearance
Amount is 32.5MVA, and #2B high factory varying load rate is 92.3%, provides data according to Gao Changbian producer, high factory becomes to exist in load factor
When 110% or less, allow long-term power supply.
As shown in figure 4, No. 2 generator W2 maintenance power supplys are provided by No. 1 generator W1 interconnection, the third interconnection switches
161c, the 4th interconnection switches 162a, the 5th interconnection switches 162b, the 6th interconnection switches 162c are in closed state, and described
One interconnection switches 161a, the second interconnection switches 161b are in disconnection or testing position；No. 2 generator W2 outlet breakers are in
Open position, No. 1 generator W1 outlet breaker are in coincidence, No. 2 generators W2 station service incoming breaker, standby
Open position is in breaker.
No. 1 generator W1 station service incoming breaker is in coincidence, the spare open circuit of No. 1 generator W1 station service
Device is in open position；2A, 2B, 2C sections of the 6kV station service of No. 2 generator W2 is powered by 1C sections of #1 machine, No. 2 generator W2's
It is 949A, 2C sections of maintenance electric currents is 501A that 2A sections of normal service electric currents of 6kV station service, which are 620A, 2B sections of maintenance electric currents, No. 1 power generation
1C sections of oepration at full load electric currents of 6kV station service of machine W1 are 283A, and #1B high factory becomes total running current as 620+949+501+283
=2353A, #1B high factory become total working capacity 1.732*6300*2353=26MVA, #1B high factory become rated capacity into
32.5MVA, #1B high factory varying load rate are 80%, provide data according to Gao Changbian producer, high factory become load factor 110% with
When lower, allow long-term power supply.
In the present embodiment, No. 1 generator W1 maintenance power supply is provided by No. 2 generator W2 interconnections, the 4th interconnection switches
162a, the 5th interconnection switches 162b are in disconnection or testing position, the 6th interconnection switches 162c, the first interconnection switches
161a, the second interconnection switches 161b, third interconnection switches 161c are in operating position, start No. 1 generator W1 in DCS picture
Fast switching device between working power switch and Backup Power Switch, after No. 1 generator W1 is shut down starting Backup Power Switch and
Fast switching device between interconnection switches realizes the interconnection of station service 2C with station service 1A, 1B, 1C sections.
Concrete operations are as follows: 162a and 162b switch is distant to testing position, confirm that 162c, 161a, 161b, 161c switch exist
Operating position starts 601a and 061a fast switching device in DCS picture, disconnects 601a, closes 061a, and starting 601b and 061b is cut fastly
Device disconnects 601b, closes 061b, starts 601c and 061c fast switching device, disconnects 601c, 061c is closed, to No. 1 generator W1
Safe shutdown；Manual closing 162c switch starts 061a and 161a fast switching device in DCS picture, disconnects 061a, be closed 161a,
Realize 2C sections and 1A sections interconnections；Start 061b and 161b fast switching device in DCS picture, disconnects 061b, be closed 161b, realize 2C sections
It is interconnected with 1B sections；Start 061c and 161c fast switching device in DCS picture, disconnect 061c, is closed 161c, 2C sections and 1C sections of realization is mutually
Connection.
Originally it implements in example, No. 2 generator W2 maintenance power supplys are provided by No. 1 generator W1 interconnection, and first interconnection is opened
It closes 161a, the second interconnection switches 161b and is in disconnection or testing position, the third interconnection switches 161c, the 4th interconnection switches
162a, the 5th interconnection switches 162b, the 6th interconnection switches 162c are in operating position, start No. 2 generator W2 works in DCS picture
Make the fast switching device between power switch and Backup Power Switch, starting Backup Power Switch and mutually after No. 2 generator W2 are shut down
Fast switching device between connection switch, realizes the interconnection of station service 1C with station service 2A, 2B, 2C sections.
Concrete operations are as follows: 161a and 161b switch is distant to testing position, confirm that 161c, 162a, 162b, 162c switch exist
Operating position starts 602a and 062a fast switching device in DCS picture, disconnects 602a, closes 062a, and starting 602b and 062b is cut fastly
Device disconnects 602b, closes 062b, starts 602c and 062c fast switching device, disconnects 602c, 062c is closed, to No. 2 generator W2
Safe shutdown；Manual closing 161c switch starts 062a and 162a fast switching device in DCS picture, disconnects 062a, be closed 162a,
Realize 1C sections and 2A sections interconnections；Start 062b and 162b fast switching device in DCS picture, disconnects 062b, be closed 162b, realize 1C sections
It is interconnected with 2B sections；Start 062c and 162c fast switching device in DCS picture, disconnect 062c, is closed 162c, 1C sections and 2C sections of realization is mutually
Connection.
The utility model is able to solve the repair and maintenance outsourcing of generation current factory, and the electric lighting bill is heavy, further promotes unit safety,
By taking certain power plant as an example, during unit maintenance, station-service electric load passes through main transformer or the spare change power supply of high pressure.The annual repair time is about
It is 55 days or so, when powering using main transformer or the spare change of high pressure, needs to pay to power grid according to every degree 0.5016 yuan/kwh of electricity,
And the cost of electricity-generating of power plant is about 0.233 yuan/kwh.By a kind of Auxiliary System in Power Plant interacted system of the utility model, make to overhaul
The station-service electricity consumption of unit is reduced and is sent or the electricity consumption of the spare change of high pressure from main transformer is counter quoted from the service power of other operating units,
The electric cost during unit maintenance can be reduced.The outsourcing electricity charge are reduced after the interconnection of certain power plant to calculate as shown in table 1.
The interconnection of certain power plant of table 1 reduces the outsourcing electricity charge and calculates
With keeping reforming for electric power structure, power grid change spare to high pressure and the electricity consumption of the anti-power transmission of main transformer price are higher than power plant
The cost of electricity-generating of oneself, the usual installed capacity in power plant is big, long operational time will generate a large amount of outsourcing electricity charge, directly affects
The economic benefit of enterprise, it is especially prominent during unit outage maintenance.The standby power transformation amount of the height used during unit maintenance belongs to outer
Power purchase, price is higher, realizes that unit station service mutually supplies by the utility model, can largely save the outsourcing electricity charge, reduce power plant
Maintenance cost during maintenance.
The above is only the preferred embodiment of the utility model patent, not makees any limit to the utility model patent
System, it is all according to the utility model technical spirit any simple modification, change and equivalent structure to the above embodiments
Change, in the protection scope for still falling within technical solutions of the utility model.
Claims (7)
1. a kind of Auxiliary System in Power Plant interacted system, which is characterized in that including No. 1 generator (W1), No. 2 generators (W2), No. 3
Generator (W3), No. 4 generators (W4) and #01 high are standby to become ST；Inter-bay (BUS) and several interconnection switches；
No. 1 generator (W1) becomes 1A sections of generator (W1) station service of T1A connection 1 and 1B sections through #1A high factory, through #1B high
Factory becomes No. 1 1C sections of generator (W1) station service of T1B connection；
No. 2 generators (W2) become 2A sections of generator (W2) station service of T2A connection 2 and 2B sections through #2A high factory, through #2B high
Factory becomes No. 2 2C sections of generator (W2) station services of T2B connection；
No. 3 generators (W3) become 3A sections of generator (W3) station service of T3 connection 3 and 3B sections through #3A high factory；
No. 4 generators (W4) become 4A sections of generator (W4) station service of T4 connection 4 and 4B sections through #4A high factory；
The standby A side bus BUSA that becomes of the standby height for becoming ST of the #01 high is separately connected A sections and No. 1 of four generator station services power generations
1C sections of machine (W1) station service；
The standby B side bus BUSB that becomes of the standby height for becoming ST of the #01 high is separately connected B sections and No. 2 of four generator station services power generations
2C sections of machine (W2) station service；
One end of interconnection switches connects inter-bay；The other end connects one to one 1A sections, 1B sections of No. 1 generator (W1) station service
With 1C sections and No. 2 2A sections, 2B sections and 2C sections of generator (W2) station service；No. 1 generator connected by inter-bay (BUS)
(W1) it powers with No. 2 generator (W2) electricity consumption interconnections.
2. a kind of Auxiliary System in Power Plant interacted system according to claim 1, which is characterized in that several interconnection switches include
First interconnection switches (161a), the second interconnection switches (161b), third interconnection switches (161c), the 4th interconnection switches (162a),
5th interconnection switches (162b) and the 6th interconnection switches (162c)；The interconnection switches and inter-bay (BUS) are for No. 1 hair
The electricity consumption of motor (W1) and No. 2 generators (W2) interconnects power supply；
Described first interconnection switches one end (161a) is connected with No. 1 1A sections of generator (W1) station service, the other end and inter-bay
(BUS) it is connected；
Described second interconnection switches one end (161b) is connected with No. 1 1B sections of generator (W1) station service, the other end and inter-bay
(BUS) it is connected；
Described third interconnection switches one end (161c) is connected with No. 1 1C sections of generator (W1) station service, the other end and joined bus
(BUS) it is connected；
4th interconnection switches one end (162a) is connected with No. 2 2A sections of generator (W2) station services, the other end and inter-bay
(BUS) it is connected；
5th interconnection switches one end (162b) is connected with No. 2 2B sections of generator (W2) station services, the other end and inter-bay
(BUS) it is connected；
6th interconnection switches one end (162c) is connected with No. 2 2C sections of generator (W2) station services, the other end and inter-bay
(BUS) it is connected.
3. a kind of Auxiliary System in Power Plant interacted system according to claim 2, which is characterized in that when No. 1 generator (W1)
When being operated normally with No. 2 generators (W2),
First interconnection switches (161a), the second interconnection switches (161b), third interconnection switches (161c), the 4th interconnection switches
(162a), the 5th interconnection switches (162b) and the 6th interconnection switches (162c) are in disconnection or testing position；
No. 1 generator (W1) and No. 2 generator (W2) outlet breakers are in coincidence, No. 1 generator (W1) and No. 2 generators
(W2) station service incoming breaker is in coincidence, and No. 1 generator (W1) and No. 2 generator (W2) station service back-up breakers are equal
In quartile.
4. a kind of Auxiliary System in Power Plant interacted system according to claim 2, which is characterized in that when No. 1 generator (W1)
When overhauling power supply by No. 2 generator (W2) interconnection offers,
First interconnection switches (161a), the second interconnection switches (161b), third interconnection switches (161c) and the 6th interconnection are opened
It closes (162c) and is in closed state, the 4th interconnection switches (162a) and the 5th interconnection switches (162b), which are in, to be disconnected or try
Test position；
No. 1 generator (W1) outlet breaker is in open position, and No. 2 generator (W2) outlet breakers are in coincidence, No. 1 hair
Motor (W1) station service incoming breaker and back-up breaker are in open position, and No. 2 generator (W2) station service inlet wires are disconnected
Road device is in coincidence, and No. 2 generator (W2) station service back-up breakers are in open position.
5. a kind of Auxiliary System in Power Plant interacted system according to claim 4, which is characterized in that when No. 1 generator (W1)
When overhauling power supply by No. 2 generator (W2) interconnection offers,
4th interconnection switches (162a), the 5th interconnection switches (162b) are in disconnection or testing position, first interconnection
Switch (161a), the second interconnection switches (161b), third interconnection switches (161c) and the 6th interconnection switches (162c) are in work
Make position, 2C sections of station service interconnect with station service 1A, 1B, 1C sections.
6. a kind of Auxiliary System in Power Plant interacted system according to claim 2, which is characterized in that when No. 2 generators (W2)
When overhauling power supply by No. 1 generator (W1) interconnection offer,
The third interconnection switches (161c), the 4th interconnection switches (162a), the 5th interconnection switches (162b) and the 6th interconnection are opened
It closes (162c) and is in closed state,
First interconnection switches (161a), the second interconnection switches (161b) are in disconnection or testing position；No. 2 generators (W2)
Outlet breaker is in open position, and No. 1 generator (W1) outlet breaker is in coincidence, No. 2 generator (W2) station services into
Line breaker, back-up breaker are in open position, and No. 1 generator (W1) station service incoming breaker is in coincidence, and described 1
Number generator (W1) station service back-up breaker is in open position.
7. a kind of Auxiliary System in Power Plant interacted system according to claim 6, which is characterized in that when No. 2 generators (W2)
When overhauling power supply by No. 1 generator (W1) interconnection offer,
First interconnection switches (161a), the second interconnection switches (161b) are in disconnection or testing position, the third interconnection
Switch (161c), the 4th interconnection switches (162a), the 5th interconnection switches (162b), the 6th interconnection switches (162c) are in working position
It sets, 1C sections of station service interconnect with station service 2A, 2B, 2C sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920769822.4U CN209658909U (en) | 2019-05-24 | 2019-05-24 | A kind of Auxiliary System in Power Plant interacted system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111478425A (en) * | 2020-04-17 | 2020-07-31 | 齐鲁工业大学 | High-voltage station service power fast switching system, power supply system and method |
| CN111478425B (en) * | 2020-04-17 | 2021-07-30 | 齐鲁工业大学 | High-voltage station service power fast switching system, power supply system and method |
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