CN108199337B - Transformer station secondary system and its performance improvement method are pressed in one kind - Google Patents
Transformer station secondary system and its performance improvement method are pressed in one kind Download PDFInfo
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- CN108199337B CN108199337B CN201711327501.0A CN201711327501A CN108199337B CN 108199337 B CN108199337 B CN 108199337B CN 201711327501 A CN201711327501 A CN 201711327501A CN 108199337 B CN108199337 B CN 108199337B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for dc systems
Abstract
The invention discloses transformer station secondary system and its performance improvement method are pressed in one kind, performance improvement method includes: S1, when the association feeder number in buckling power station in confirmation is less than or equal to preset quantity, multiple measure and control devices in multiple first protection supervisory equipments and multiple second protection supervisory equipments are removed respectively and are integrated into the first measure and control device and the second measure and control device, by two sections of bus to the multiple protective devices and the power supply of the first measure and control device in multiple second protection supervisory equipments, by one section of bus to the multiple protective devices and the power supply of the second measure and control device in multiple first protection supervisory equipments；Or S2, when the association feeder number in buckling power station in confirmation is greater than preset quantity, add the second remote jump device and the first remote jump device respectively to one section of bus and two sections of bus.The beneficial effects of the present invention are: effectively solving the problems, such as that line fault bring fault incidence expands in the case where DC power supply loses scene.
Description
Technical field
The present invention relates to relay protection fields, in particular to transformer station secondary system and its performance boost side are pressed in one kind
Method.
Background technique
Transforming plant protecting and TT&C system Secondary Direct Electrical Resources loss are one of substation operation matters of aggravation, power transformation
Streaming system bus-bar fault of standing erectly or for DC bus protection jump can all cause it to be powered each set protect control device
Power supply is lost and out of service, so that a corresponding route or main equipment lose defencive function.In super-pressure/high-pressure system
In, since the movement consequence of protection is pulled one hair and move the whole body, DC power-supply system generally takes double-bus to configure, and protects and surveys
Device separation is controlled, therefore, single DC power supply loss not will lead to the devices such as protection and observing and controlling power loss to lose function, make
Reliability with higher must be protected.But in 110kV and mesolow electrical power trans mission/distribution system below, consider economic cost and
The configuration mode of the problems such as land occupation, double DC bus are not promoted, and DC power-supply system generally uses sectionalized single busbar connection
Form, and its Substation IED generallys use protection supervisory equipment integrated design.
It is such design and configuration theory under, when certain section of DC bus exception, associated by all protection observing and controlling
Device will lose DC power supply simultaneously and then lose corresponding protection observing and controlling function.Its all main protection function, including it is vertical
UNPROFOR shield and I sections/current quick-breaking of distance and main nearly back-up protection, such as II sections of distance/overcurrent will lose completely
Effect can only rely on the remote back-up protection of adjacent substations, such as distance/overcurrent III Duan Laijin if this line failure at this time
Row excision, quick-action and selectivity are unable to get guarantee, will be enlarged by fault incidence.
Summary of the invention
The present invention provides transformer station secondary system and its performance improvement method is pressed in one kind, solves the skill of the prior art
Art problem.
The technical scheme to solve the above technical problems is that
A kind of performance improvement method of middle pressure transformer station secondary system, the electrical secondary system in middle buckling power station includes that mother is opened
It closes, one section and two sections of bus of bus of DC bus is divided by the bus connection switch, accesses the charging of one section of the bus
Device accesses the electrical storage device of two sections of the bus, multiple first protection supervisory equipments and multiple second protection supervisory equipments,
In, each first protection supervisory equipment and each second protection supervisory equipment include: a protective device and an observing and controlling dress
It sets, medium pressure substation is connect with multiple substations respectively by a plurality of route, and the protective device in each substation is used for
The route connecting with the substation is protected, for every route, passes through first protection supervisory equipment or one
Protective device and measure and control device in two protection supervisory equipments carry out protection and observing and controlling to it respectively,
The performance improvement method includes:
S1, when the association feeder number for confirming medium pressure substation is less than or equal to preset quantity, by the multiple the
Multiple measure and control devices in one protection supervisory equipment and the multiple second protection supervisory equipment are removed respectively is integrated into the first survey
Device and the second measure and control device are controlled, by two sections of the bus to multiple protective devices in the multiple second protection supervisory equipment
It powers with first measure and control device, is filled by one section of the bus to multiple protections in the multiple first protection supervisory equipment
It sets and powers with second measure and control device；Or
S2, when confirm medium pressure substation association feeder number be greater than the preset quantity when, give one section of the bus
The second remote jump device and the first remote jump device are added respectively for two sections with the bus, wherein first remote jump device is for remote
Jump the breaker on a plurality of route that the multiple protective devices powered by one section of the bus are protected, second remote jump device
For far jumping the breaker on a plurality of route that the multiple protective devices powered by two sections of the bus are protected.
The beneficial effects of the present invention are: being devised respectively for the few substation more with circuit is associated in association circuit
The middle pressure transformer station secondary system performance boost scheme of two kinds of meters and investment O&M cost performance.Design in this way can be solved effectively
The problem of certainly line fault bring fault incidence expands in the case where DC power supply loses scene.
For the few substation of association feeder number, by the associated all original guarantors of every section of DC bus in middle buckling power station
The observing and controlling separating function in measure and control device is protected, protection IED is still DC bus powered by this, the observing and controlling in each circuit being stripped out
Function is integrated into a set of newly-increased measure and control device, and is configured other one section of DC bus and increased measure and control device power supply newly to this,
Realize that power supply is mutually redundant.
For the more substation of association feeder number, keeps original electrical secondary system design constant, increase two sets of distant places newly and jump
Brake gear is exclusively used in realizing that function is far jumped in the remote jump of all route opposite side protections of our station or Remote protection.Two sets of remote jump devices are intersected
It is mounted on two sections of DC bus.Since newly-increased remote tripping device is in addition to receiving transfer trip instruction and issuing to breaker
Outside trip signal, without acquiring any analog quantity, be not related to other input and output amounts yet, there are no must carry out complicated numerical value and
Logical operation and judgement, therefore its design will be relatively simple, relative inexpensiveness, O&M maintenance is more simple.
Based on the above technical solution, the present invention can also be improved as follows.
Preferably, in step S1, when one section of the bus because failure cause the multiple protective devices powered as it and described in
Second measure and control device is out of service or described two sections of bus cause multiple protective devices as its power supply with described in because breaking down
When first measure and control device is out of service, bus connection switch described in disjunction, so that one section of normal work of two sections of the bus or the bus
Make.
Preferably, in step S1, one section of the bus because failure cause the multiple protective devices powered as it and described in
After second measure and control device is out of service, when any line failure that multiple protective devices by its power supply are protected, by
First measure and control device of two sections of bus power supplies receives the protective device that the substation that the faulty line is connected includes
The straight jump order issued, and according to the straight breaker jumped on the order disjunction faulty line.
Preferably, in step S1, two sections of the bus because failure cause the multiple protective devices powered as it and described in
After first measure and control device is out of service, when any line failure that multiple protective devices by its power supply are protected, by
Second measure and control device of one section of bus power supply receives the protective device that the substation that the faulty line is connected includes
The straight jump order issued, and according to the straight breaker jumped on the order disjunction faulty line.
Preferably, the charging unit includes: that concatenated charger, charger output fuse and charger switch, described
Described one section of bus of access of charger switch.
Preferably, the electrical storage device includes: concatenated battery and battery output fuse, and the battery output is molten
Described two sections of bus of silk access.
Transformer station secondary system is pressed in one kind, the electrical secondary system in middle buckling power station includes bus connection switch, passes through the mother
Switch is divided into one section and two sections of bus of bus of DC bus, accesses the charging unit of one section of the bus, accesses the mother
The electrical storage device that two sections of line, multiple first protection supervisory equipments, multiple second protection supervisory equipments, the first remote jump device and second
Remote jump device, wherein each first protection supervisory equipment and each second protection supervisory equipment respectively include: a protective device
With a measure and control device；
Medium pressure substation is connect with multiple substations respectively by a plurality of route, the protective device in each substation
For protecting to the route connecting with the substation, for every route, pass through first protection supervisory equipment or one
Protective device and measure and control device in a second protection supervisory equipment carry out protection and observing and controlling to it respectively, and the described first remote jump fills
It sets for far jumping the breaker on a plurality of route protected of multiple protective devices powered by one section of the bus, described second
Remote jump device is for far jumping the breaker on a plurality of route that the multiple protective devices powered by two sections of the bus are protected；
One section of the bus for in the multiple first protection supervisory equipment multiple protective devices and will be described more
The second measure and control device power supply that multiple measure and control devices removing in a second protection supervisory equipment integrates,
Two sections of the bus for in the multiple second protection supervisory equipment multiple protective devices and will be described more
The first measure and control device power supply that multiple measure and control devices removing in a first protection supervisory equipment integrates,
Alternatively,
One section of the bus is used to power to first protection supervisory equipment and second remote jump device,
Two sections of the bus to second protection supervisory equipment and first remote jump device for powering.
Preferably, the charging unit includes: that concatenated charger, charger output fuse and charger switch, described
Described one section of bus of access of charger switch.
Preferably, the electrical storage device includes: concatenated battery and battery output fuse, and the battery output is molten
Described two sections of bus of silk access.
Detailed description of the invention
Fig. 1 is the flow chart that the performance improvement method of transformer station secondary system is pressed in one kind provided in an embodiment of the present invention；
Fig. 2 be another embodiment of the present invention provides regional power grid structure chart；
Fig. 3 be another embodiment of the present invention provides one kind in press transformer station secondary system structure chart；
Fig. 4 be another embodiment of the present invention provides one kind in press transformer station secondary system structure chart；
Fig. 5 be another embodiment of the present invention provides one kind in press transformer station secondary system structure chart.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
As shown in Figure 1, pressing the performance improvement method of transformer station secondary system, the electrical secondary system packet in middle buckling power station in one kind
Bus connection switch is included, one section and two sections of bus of bus of DC bus, the charging of one section of bus of access are divided by bus connection switch
Device, the electrical storage device of two sections of bus of access, multiple first protection supervisory equipments and multiple second protection supervisory equipments, wherein
Each first protection supervisory equipment and each second protection supervisory equipment include: a protective device and a measure and control device,
Middle buckling power station connect respectively by a plurality of route with multiple substations, the protective device in each substation for the change
The route of power station connection is protected, and for every route, is surveyed by first protection supervisory equipment or one second protection
Protective device and measure and control device in control device carry out protection and observing and controlling to it respectively,
Performance improvement method includes:
S1, when the association feeder number in buckling power station in confirmation be less than or equal to preset quantity when, will it is multiple first protection survey
Multiple measure and control devices in control device and multiple second protection supervisory equipments are removed respectively is integrated into the first measure and control device and second
Measure and control device, the multiple protective devices given in multiple second protection supervisory equipments by two sections of bus and the first measure and control device are powered,
By one section of bus to the multiple protective devices and the power supply of the second measure and control device in multiple first protection supervisory equipments；Or
S2, when the association feeder number in buckling power station in confirmation is greater than preset quantity, to one section of bus and two sections points of bus
The second remote jump device and the first remote jump device are not added, wherein the first remote jump device is powered for far jump by one section of bus more
The breaker on a plurality of route that a protective device is protected, the second remote jump device are powered for far jump by two sections of bus multiple
The breaker on a plurality of route that protective device is protected.
The present embodiment is directed to the association circuit seldom substation more with circuit be associated with respectively, devises two kinds of meters and invests
The middle pressure transformer station secondary system performance boost scheme of O&M cost performance.Design in this way can effectively solve in DC power supply
Lose the problem of line fault bring fault incidence expands under scene.
For the few substation of association feeder number, by the associated all original guarantors of every section of DC bus in middle buckling power station
The observing and controlling separating function in measure and control device is protected, protection IED is still DC bus powered by this, the observing and controlling in each circuit being stripped out
Function is integrated into a set of newly-increased measure and control device, and is configured other one section of DC bus and increased measure and control device power supply newly to this,
Realize that power supply is mutually redundant.
For the more substation of association feeder number, keeps original electrical secondary system design constant, increase two sets of distant places newly and jump
Brake gear is exclusively used in realizing that function is far jumped in the remote jump of all route opposite side protections of our station or Remote protection.Two sets of remote jump devices are intersected
It is mounted on two sections of DC bus.Since newly-increased remote tripping device is in addition to receiving transfer trip instruction and issuing to breaker
Outside trip signal, without acquiring any analog quantity, be not related to other input and output amounts yet, there are no must carry out complicated numerical value and
Logical operation and judgement, therefore its design will be relatively simple, relative inexpensiveness, O&M maintenance is more simple.
Preferably, in step S1, when one section of bus because failure leads to the multiple protective devices and the second observing and controlling powered by it
Device is out of service or two sections of bus cause to be exited by the multiple protective devices and the first measure and control device of its power supply because breaking down
When operation, disjunction bus connection switch, so that two sections of bus or one section of bus normal work.
Preferably, in step S1, in one section of bus because failure leads to the multiple protective devices and the second observing and controlling powered by it
After device is out of service, when any line failure that multiple protective devices by its power supply are protected, by two sections of bus
First measure and control device of power supply receives the straight jump order that the protective device that the substation that the faulty line is connected includes issues, and
According to the straight breaker jumped on the order disjunction faulty line.
Preferably, in step S1, in two sections of bus because failure leads to the multiple protective devices and the first observing and controlling powered by it
After device is out of service, when any line failure that multiple protective devices by its power supply are protected, by one section of bus
Second measure and control device of power supply receives the straight jump order that the protective device that the substation that the faulty line is connected includes issues, and
According to the straight breaker jumped on the order disjunction faulty line.
As shown in Fig. 2, regional power grid structural schematic diagram, by taking substation C as an example, interior direct current system of standing is using sectionalized single busbar connection
Form will be forced to move back if certain section of DC bus is abnormal and out of service via each set protection supervisory equipment of the bussed supply
It runs out, the primary equipment for corresponding to interval loses corresponding protection observing and controlling function automatically.Due to transforming plant DC bus section
It is limited, it cannot exclude the possibility of the equal power loss of protective device of relatively large or even all inlet wire/outlets (DC bus unsegmented).This
In the case of kind, if certain line failure, it can only act, make by the remote back-up protection of substation A, B, D, E ... n and n+1
Expand at fault incidence.At this point, even if guilty culprit route direct current system perfects I sections of lateral extent, II sections of protections can recognize
A certain range of failure on route, side energy reliable trip simultaneously protect (DC power supply loss institute to opposite side by far jumping function
In side route protection) trip signal is assigned, but due to corresponding protection supervisory equipment power loss, so that it is simultaneously correct to take orders
Disjunction line-breaker.Finally, which can only be cut off by the remote back-up protection movement of its adjacent substations.In this respect
Under, a plurality of route of substation is removed simultaneously, the risk of even whole station power loss will greatly promote.
If the association feeder number of substation C is few, by the associated all originals of every section of DC bus in middle buckling power station
There is the observing and controlling separating function in protection supervisory equipment, protection IED is still DC bus powered by this, each circuit being stripped out
Observing and controlling function is integrated into a set of newly-increased measure and control device, and is configured other one section of DC bus and increased measure and control device confession newly to this
Electricity realizes that power supply is mutually redundant.New departure is as shown in Figure 3.Originally the protection observing and controlling powered by I sections of DC bus (one section of bus)
The observing and controlling function of device is stripped, and is integrated in observing and controlling IED1, and original protection is still DC bus powered by I sections, and observing and controlling
IED1 is DC bus powered by II sections.If this, even if I sections of DC bus are protected due to failure and other reasons by corresponding DC power supply
Shield isolation, causes I sections of DC bus powered protections out of service, since DC power supply protection will necessarily be first in isolated fault
Disjunction bus connection switch B1, so that II sections of DC bus (two sections of bus) can still work normally.In certain time line fault, it is assumed that its
Protection is DC bus powered by I sections, can not work normally at this time, still, the observing and controlling IED1 for working in II sections of DC bus still may be used
Smoothly to receive the straight jump order that the protective device of faulty line opposite side substation issues, which is cut off with very short delay.
Design in this way, even if DC power-supply system is not carried out dual, the reliability and quick-action of medium-voltage line protection are still
Significantly promoted.
If the association feeder number of substation C is more, keeps original electrical secondary system design constant, increase two sets of distant places newly
Tripgear is exclusively used in realizing that function is far jumped in the remote jump of all route opposite side protections of our station or Remote protection.Two sets of remote jump devices are handed over
Fork is mounted on two sections of DC bus.Design scheme is as shown in figure 4, two sets of remote jump device intersections are mounted on two sections of DC bus
On, i.e., remote jump device 1,2 is mounted on respectively in II sections of DC bus and I section, be respectively used to far to jump I sections and II sections of DC bus it is right
Associated line-breaker should be protected.In this way, any one section of DC bus power loss, can guarantee that the in-situ protection for having opposite side is held
Continuous work, copes with the line fault that may occur.
Preferably, charging unit includes: that concatenated charger, charger output fuse and charger switch, charger are opened
Close one section of bus of access.
Preferably, electrical storage device includes: concatenated battery and battery output fuse, and it is female that battery exports fuse access
Two sections of line.
As shown in figure 5, pressing transformer station secondary system in one kind, the electrical secondary system in middle buckling power station includes bus connection switch 1, is led to
Cross the DC bus that bus connection switch 1 is divided into one section 2 of bus and two section 3 of bus, the charging unit 4 of one section 2 of bus of access, access
The electrical storage device 5 that two section 3 of bus, multiple first protection supervisory equipments 6, multiple second protection supervisory equipments 7, the first remote jump device
8 and second remote jump device 9, wherein each first protection supervisory equipment 6 and each second protection supervisory equipment 7 respectively include: one
A protective device and a measure and control device；
Middle buckling power station is connect with multiple substations respectively by a plurality of route, and the protective device in each substation is used for
The route connecting with the substation is protected, for every route, passes through first protection supervisory equipment 6 or one
Protective device and measure and control device in two protection supervisory equipments 7 carry out protection to it respectively and observing and controlling, the first remote jump device 8 are used for
The remote breaker jumped on a plurality of route that the multiple protective devices powered by one section 2 of bus are protected, the second remote jump device 9 are used for
The remote breaker jumped on a plurality of route that the multiple protective devices powered by two section 3 of bus are protected；
One section 2 of bus to multiple protective devices in multiple first protection supervisory equipments 6 and by multiple second for protecting
The second measure and control device 10 power supply that multiple measure and control devices removing in measure and control device 7 integrates,
Two section 3 of bus to multiple protective devices in multiple second protection supervisory equipments 7 and by multiple first for protecting
The first measure and control device 11 power supply that multiple measure and control devices removing in measure and control device 6 integrates,
Alternatively,
One section 2 of bus is used to power to the first protection supervisory equipment 6 and the second remote jump device 9,
Two section 3 of bus to the second protection supervisory equipment 7 and the first remote jump device 8 for powering.
Preferably, charging unit 4 includes: that concatenated charger, charger output fuse and charger switch, charger are opened
Close one section 2 of bus of access.
Preferably, electrical storage device 5 includes: concatenated battery and battery output fuse, and battery exports fuse access
Two section 3 of bus.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. pressing the performance improvement method of transformer station secondary system in one kind, which is characterized in that the electrical secondary system packet in middle buckling power station
Bus connection switch is included, one section and two sections of bus of bus of DC bus is divided by the bus connection switch, accesses the bus one
The charging unit of section, accesses the electrical storage device of two sections of the bus, and multiple first protection supervisory equipments and multiple second protections are surveyed
Control device, wherein each first protection supervisory equipment and each second protection supervisory equipment include: a protective device and one
A measure and control device, medium pressure substation are connect with multiple substations respectively by a plurality of route, the protection in each substation
Device, for every route, passes through first protection supervisory equipment for protecting to the route connecting with the substation
Or protective device in second protection supervisory equipment and measure and control device carry out protection and observing and controlling to it respectively,
The performance improvement method includes:
S1, when confirm medium pressure substation association feeder number be less than or equal to preset quantity when, the multiple first is protected
Multiple measure and control devices in shield measure and control device and the multiple second protection supervisory equipment are removed respectively is integrated into the first observing and controlling dress
It sets with the second measure and control device, the multiple protective devices given in the multiple second protection supervisory equipment by two sections of the bus and institute
State the power supply of the first measure and control device, by one section of the bus in the multiple first protection supervisory equipment multiple protective devices and
The second measure and control device power supply；Or
S2, when confirm medium pressure substation association feeder number be greater than the preset quantity when, give one section of the bus and institute
State two sections of bus and add the second remote jump device and the first remote jump device respectively, wherein first remote jump device for far jump by
The breaker on a plurality of route that multiple protective devices of one section of bus power supply are protected, second remote jump device are used for
The remote breaker jumped on a plurality of route that the multiple protective devices powered by two sections of the bus are protected.
2. pressing the performance improvement method of transformer station secondary system in one kind according to claim 1, which is characterized in that step
In S1, when one section of the bus because failure cause it is out of service by multiple protective devices of its power supply and second measure and control device
Or two sections of the bus because break down cause it is out of service by multiple protective devices of its power supply and first measure and control device
When, bus connection switch described in disjunction, so that two sections of the bus or one section of bus normal work.
3. pressing the performance improvement method of transformer station secondary system in one kind according to claim 1, which is characterized in that step
In S1, one section of the bus because failure cause it is out of service by multiple protective devices of its power supply and second measure and control device
Afterwards, when any line failure that multiple protective devices by its power supply are protected, by the institute of two sections of bus power supplies
It states the first measure and control device and receives the straight jump order that the protective device that the substation that faulty line is connected includes issues, and according to institute
State the straight breaker jumped on the order disjunction faulty line.
4. pressing the performance improvement method of transformer station secondary system in one kind according to claim 1, which is characterized in that step
In S1, two sections of the bus because failure cause it is out of service by multiple protective devices of its power supply and first measure and control device
Afterwards, when any line failure that multiple protective devices by its power supply are protected, by the institute of one section of bus power supply
It states the second measure and control device and receives the straight jump order that the protective device that the substation that faulty line is connected includes issues, and according to institute
State the straight breaker jumped on the order disjunction faulty line.
5. pressing the performance improvement method of transformer station secondary system in one kind according to claim 1, which is characterized in that described
Charging unit includes: concatenated charger, charger output fuse and charger switch, and the charger switch accesses the mother
One section of line.
6. pressing the performance improvement method of transformer station secondary system in one kind according to claim 1, which is characterized in that described
Electrical storage device includes: concatenated battery and battery output fuse, described two sections of bus of access of the battery output fuse.
7. pressing transformer station secondary system in one kind, which is characterized in that the electrical secondary system in middle buckling power station includes bus connection switch, is passed through
The bus connection switch is divided into one section and two sections of bus of bus of DC bus, accesses the charging unit of one section of the bus, connects
Enter the electrical storage device of two sections of the bus, multiple first protection supervisory equipments, multiple second protection supervisory equipments, the first remote jump dress
It sets and the second remote jump device, wherein each first protection supervisory equipment and each second protection supervisory equipment respectively include: one
Protective device and a measure and control device；
Medium pressure substation is connect with multiple substations respectively by a plurality of route, and the protective device in each substation is used for
The route connecting with the substation is protected, for every route, passes through first protection supervisory equipment or one
Protective device and measure and control device in two protection supervisory equipments carry out protection and observing and controlling to it respectively, and first remote jump device is used
In the remote breaker jumped on a plurality of route that the multiple protective devices powered by one section of the bus are protected, the described second remote jump
Device is for far jumping the breaker on a plurality of route that the multiple protective devices powered by two sections of the bus are protected；
One section of the bus for multiple protective devices in the multiple first protection supervisory equipment and by the multiple the
The second measure and control device power supply that multiple measure and control devices removing in two protection supervisory equipments integrates,
Two sections of the bus for multiple protective devices in the multiple second protection supervisory equipment and by the multiple the
The first measure and control device power supply that multiple measure and control devices removing in one protection supervisory equipment integrates,
Alternatively,
One section of the bus for first protection supervisory equipment and second remote jump device power supply, two sections of the bus
For powering to second protection supervisory equipment and first remote jump device.
8. pressing transformer station secondary system in one kind according to claim 7, which is characterized in that the charging unit includes:
Concatenated charger, charger output fuse and charger switch, described one section of bus of access of the charger switch.
9. pressing transformer station secondary system in one kind according to claim 7, which is characterized in that the electrical storage device includes:
Concatenated battery and battery export fuse, described two sections of bus of access of the battery output fuse.
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| CN201711327501.0A CN108199337B (en) | 2017-12-13 | 2017-12-13 | Transformer station secondary system and its performance improvement method are pressed in one kind |
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| CN201711327501.0A CN108199337B (en) | 2017-12-13 | 2017-12-13 | Transformer station secondary system and its performance improvement method are pressed in one kind |
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| CN108199337B true CN108199337B (en) | 2019-04-05 |
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