CN207994607U - A kind of nuclear power station emergency diesel dynamo test relaying configuration system - Google Patents
A kind of nuclear power station emergency diesel dynamo test relaying configuration system Download PDFInfo
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- CN207994607U CN207994607U CN201820004033.7U CN201820004033U CN207994607U CN 207994607 U CN207994607 U CN 207994607U CN 201820004033 U CN201820004033 U CN 201820004033U CN 207994607 U CN207994607 U CN 207994607U
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- switch
- diesel
- protection
- driven generator
- secondary side
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Abstract
A kind of nuclear power station emergency diesel dynamo test relaying configuration system; including diesel-driven generator, test system, comprehensive protector; emergency service busbar is via first line, test system via the second connection diesel-driven generator; first switch and first switch protection CT are provided in first line; be provided in second circuit second switch and second switch protection CT, second switch, first switch control terminal be all connected with the differential protection output channel of comprehensive protector；First switch protection CT, second switch protection CT secondary side be respectively connected to the first end of the first, second terminal block, the second end of the first, second terminal block and the differential protection input channel that comprehensive protector is accessed after connecing；When diesel-driven generator accesses test system, first terminal row's is in the open state in flakes, and first switch protects the secondary side short circuit of CT；When diesel-driven generator normal operation, Second terminal row's is in the open state in flakes, and second switch protects the secondary side short circuit of CT.
Description
Technical field
The utility model is related to nuclear power field more particularly to a kind of nuclear power station emergency diesel dynamo test relaying configuration systems
System.
Background technology
The full power experiment of the diesel emergency generating set of nuclear power plant is connected to external power grid between being generally routed in overhaul time
It executes, occupies overhaul critical path.In order to the experiment window of more flexible arrangement diesel emergency generating set, machine is ensured
The safe and stable operation of group needs to be tested using emergency diesel dynamo test system.When diesel-driven generator downstream load
When switching moving test system, diesel-driven generator will lose original main protection, if when diesel-driven generator tape test system test
There is internal fault in diesel engine or circuit, will be unable to cut off failure rapidly, cause equipment burnout, fault coverage expansion etc. a series of
Problem.
In order to give the system configuration main protection, three common schemes exist apparent insufficient below：1) directly by diesel oil
The secondary line concatenation of generator side CT and mobile load-side CT access original comprehensive protector, realize differential function, still
The secondary line concatenation of two groups of CT, which differs, surely realizes differential protection function, and secondary circuit load is well over CT capacity, CT no-load voltage ratios
It no longer maintains constant；2) directly by the secondary line of diesel generation pusher side CT and mobile load-side CT and access integrated protection dress
It sets, realizes differential function, this scheme poor performance may malfunction；3) a set of T differential protecting equipments are newly increased, it will be in former 7UM62
Differential to exit, other defencive functions remain unchanged, the differential all access T difference devices in three sides.This scheme needs to change diesel oil hair
Motor primary side, it will introduce many control unknown risks.
Utility model content
The technical problem to be solved by the present invention is to for the drawbacks described above of the prior art, provide a kind of nuclear power station
Emergency diesel dynamo tests relaying configuration system.
Technical solution adopted by the utility model to solve its technical problems is：Construct a kind of nuclear power station emergency diesel-oil power generation
Machine tests relaying configuration system, including diesel-driven generator, test system, comprehensive protector, and emergency service busbar is via first
The outgoing line side of diesel-driven generator described in connection, the test system is via the second connection institute parallel with first line
State the outgoing line side of diesel-driven generator, be provided in the first line first switch and first switch protection CT, described second
Be provided in circuit second switch and second switch protection CT, the second switch, first switch control terminal be all connected with it is comprehensive
Close the differential protection output channel of protective device；
It is described when disconnecting first switch and being closed second switch so that the diesel-driven generator is accessed the test system
The secondary side of second switch protection CT accesses the differential protection input channel of the comprehensive protector；When disconnect second switch and
First switch is closed so that when diesel-driven generator normal operation, the secondary side access of the first switch protection CT is described comprehensive to be protected
The differential protection input channel of protection unit.
Specifically, the secondary side of first switch protection CT is connected to the first end of first terminal row, the second switch is protected
The secondary side of shield CT is connected to the first end of Second terminal row, the second end of first terminal row and the second end of Second terminal row
And the differential protection input channel of the comprehensive protector is accessed after connecing；
When the diesel-driven generator accesses the test system, the first terminal row's is in the open state in flakes,
The secondary side short circuit of the first switch protection CT；When the diesel-driven generator normal operation, the company of the Second terminal row
Piece is in the open state, the secondary side short circuit of the second switch protection CT.
Specifically, the wire-outgoing breaker that the first switch uses, the lead-in circuit breaker that the second switch uses.
Wherein, the diesel-driven generator, test system, comprehensive protector are arranged in a protection cabinets.
The nuclear power station emergency diesel dynamo for implementing the utility model tests relaying configuration system, has below beneficial to effect
Fruit：The utility model, can be simple and effective in the case where not changing primary equipment in access nigration load temporarily
Nigration load and diesel-driven generator are protected, it is cost-effective, the risk of integral replacing protective device is reduced, is operated
Convenient, simple, risk is controllable, and relaying configuration change range is small when accessing test system, can completely not when testing system off-line
Influence original system.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer：
Fig. 1 is the structural schematic diagram of the block diagram of the utility model；
Fig. 2 is the detailed connection relationship diagram of two CT and comprehensive protector in Fig. 1.
Specific implementation mode
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The exemplary embodiments of the utility model are given in attached drawing.But the utility model can in many different forms come in fact
It is existing, however it is not limited to embodiment described herein.Make public affairs to the utility model on the contrary, purpose of providing these embodiments is
It is more thorough and comprehensive to open content.
It should be noted that described " connected " or " connection ", includes not only being connected directly two entities, also include logical
It crosses and is indirectly connected with other entities beneficial to improvement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model
The normally understood meaning of technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.
The term comprising ordinal number such as " first " that is used in this specification, " second " can be used for illustrating various inscapes,
But these inscapes are not limited by these terms.It is only that using the purpose of these terms and distinguishes an inscape
In other inscapes.For example, under the premise of not departing from the interest field of the present invention, the first inscape can be named as the
Two inscapes, similarly, the second inscape can also be named as the first inscape.
In order to be better understood from the technical solution of the utility model, below in conjunction with Figure of description and specific implementation
The technical solution of the utility model is described in detail in mode, it should be understood that in the utility model embodiment and embodiment
Specific features be detailed description to technical scheme, rather than to the restriction of technical scheme, do not rushing
In the case of prominent, the technical characteristic in the utility model embodiment and embodiment can be combined with each other.
With reference to figure 1-2, the nuclear power station emergency diesel dynamo test relaying configuration system of the utility model includes diesel oil hair
Motor, test system, comprehensive protector.The diesel-driven generator, test system, comprehensive protector are arranged to be protected at one
In cabinet.
Wherein, emergency service busbar connects the outgoing line side of the diesel-driven generator, the test system via first line
Via the outgoing line side of diesel-driven generator described in the second connection parallel with first line.Is provided in the first line
One switch and first switch protect CT, and second switch and second switch protection CT are provided in second circuit, wherein
The second switch, first switch control terminal be all connected with the differential protection output channel of comprehensive protector.
As S1 indicates that first switch, CT1 indicate that first switch protects CT in Fig. 2.S2 indicates that second switch, CT2 indicate the
Two switch protection CT.The wire-outgoing breaker that the first switch, second switch are all made of.First switch protects the primary side set of CT
In in first line, the primary side of second switch protection CT is placed on the second circuit.In order to ensure the consistency of CT characteristics, CT1,
CT2 has same model and identical parameters.
It is described when disconnecting first switch and being closed second switch so that the diesel-driven generator is accessed the test system
The secondary side of second switch protection CT accesses the differential protection input channel of the comprehensive protector；When disconnect second switch and
First switch is closed so that when diesel-driven generator normal operation, the secondary side access of the first switch protection CT is described comprehensive to be protected
The differential protection input channel of protection unit.
Wherein, comprehensive protector can judge whether to execute differential protection according to the signal of differential protection input channel,
And differential protection signal is exported to second switch or first switch by differential protection output channel, with tripping second switch or
Person's first switch realizes differential protection.
Specifically, with reference to figure 2, the secondary side of first switch protection CT is connected to the first end of first terminal row, described the
The secondary side of two switch protection CT is connected to the first end of Second terminal row, the second end of first terminal row and Second terminal row
Second end and the differential protection input channel of the comprehensive protector is accessed after connecing, in this way, after testing system access,
Ensure normal startup of the emergency diesel dynamo in the case where being test model, the influence of differential protection is minimized.
When the diesel-driven generator accesses the test system, the first terminal row's is in the open state in flakes,
The secondary side short circuit of the first switch protection CT is equivalent to only that the second switch protection CT accesses for testing system side is comprehensive at this time
Close protective device；When the diesel-driven generator normal operation, Second terminal row's is in the open state in flakes, and described the
The secondary side short circuit of two switch protection CT is equivalent to first switch protection CT is only accessed comprehensive protector at this time.
Based on the utility model, original all relaying configurations of comprehensive protector can retain；Work as diesel-driven generator
When tape test system is tested, it will test in the CT2 access comprehensive protectors of system side, directly matched using original system
Protection and CT, protection signal and generator failure alarm signal for stopping diesel-driven generator will continue to retain, not do any
Modification, using the back-up paths of the signal of original protection exit tripping S1 as the external trip signal of the S2 of test system.Therefore,
The utility model greatlys save cost, reduces the risk of integral replacing protective device, convenient and simple for operation, risk is controllable, connects
Relaying configuration change range is small when entering to test system, can not influence original system completely when testing system off-line.
The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to
The specific implementation mode stated, the above mentioned embodiment is only schematical, rather than restrictive, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection of the utility model.
Claims (4)
1. a kind of nuclear power station emergency diesel dynamo tests relaying configuration system, which is characterized in that including diesel-driven generator, test
System, comprehensive protector, emergency service busbar connect the outgoing line side of the diesel-driven generator, the test via first line
System is arranged via the outgoing line side of diesel-driven generator described in the second connection parallel with first line in the first line
There are first switch and first switch protection CT, second switch and second switch protection CT be provided in second circuit,
The second switch, first switch control terminal be all connected with the differential protection output channel of comprehensive protector；
When disconnecting first switch and being closed second switch so that the diesel-driven generator is accessed the test system, described second
The secondary side of switch protection CT accesses the differential protection input channel of the comprehensive protector；When disconnection second switch and closure
For first switch so that when diesel-driven generator normal operation, the secondary side of the first switch protection CT accesses the integrated protection dress
The differential protection input channel set.
2. nuclear power station emergency diesel dynamo according to claim 1 tests relaying configuration system, which is characterized in that first
The secondary side of switch protection CT is connected to the first end of first terminal row, and the secondary side of second switch protection CT is connected to the
The first end of two-terminal row, the second end of first terminal row and the second end of Second terminal row simultaneously access described comprehensive protect after connecing
The differential protection input channel of protection unit；
When the diesel-driven generator accesses the test system, the first terminal row's is in the open state in flakes, described
First switch protects the secondary side short circuit of CT；When the diesel-driven generator normal operation, the place in flakes of the Second terminal row
In opening state, the secondary side short circuit of the second switch protection CT.
3. nuclear power station emergency diesel dynamo according to claim 1 tests relaying configuration system, which is characterized in that described
The wire-outgoing breaker that first switch uses, the lead-in circuit breaker that the second switch uses.
4. nuclear power station emergency diesel dynamo according to claim 1 tests relaying configuration system, which is characterized in that described
Diesel-driven generator, test system, comprehensive protector are arranged in a protection cabinets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820004033.7U CN207994607U (en) | 2018-01-02 | 2018-01-02 | A kind of nuclear power station emergency diesel dynamo test relaying configuration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820004033.7U CN207994607U (en) | 2018-01-02 | 2018-01-02 | A kind of nuclear power station emergency diesel dynamo test relaying configuration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207994607U true CN207994607U (en) | 2018-10-19 |
Family
ID=63819813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820004033.7U Expired - Fee Related CN207994607U (en) | 2018-01-02 | 2018-01-02 | A kind of nuclear power station emergency diesel dynamo test relaying configuration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207994607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110768253A (en) * | 2019-11-13 | 2020-02-07 | 苏州热工研究院有限公司 | Access method and system for mobile diesel generator to access emergency service bus |
-
2018
- 2018-01-02 CN CN201820004033.7U patent/CN207994607U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110768253A (en) * | 2019-11-13 | 2020-02-07 | 苏州热工研究院有限公司 | Access method and system for mobile diesel generator to access emergency service bus |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181019 Termination date: 20200102 |
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| CF01 | Termination of patent right due to non-payment of annual fee |