CN104967208A - Power distribution system - Google Patents
Power distribution system Download PDFInfo
- Publication number
- CN104967208A CN104967208A CN201510323845.9A CN201510323845A CN104967208A CN 104967208 A CN104967208 A CN 104967208A CN 201510323845 A CN201510323845 A CN 201510323845A CN 104967208 A CN104967208 A CN 104967208A
- Authority
- CN
- China
- Prior art keywords
- generation unit
- distribution cabinet
- power distribution
- power
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
The invention relates to a power distribution system, and the system comprises two fixed generator sets (010AP, 011AP) which mutually serve as a standby generator set, a power distribution cabinet (010AR), and a mobile generator set (501AP). The two fixed generator sets (010AP, 011AP) are respectively connected with the power distribution cabinet (010AR) through cables. The interior of a factory where the two fixed generator sets (010AP, 011AP) are fixed is provided with a terminating box (501CR). The two fixed generator sets (010AP, 011AP) are connected with the power distribution cabinet (010AR) through the terminating box (501CR). When the two fixed generator sets (010AP, 011AP) cannot be used, the mobile generator set (501AP) is connected with the terminating box (501CR) through a cable. The system can use an original power supply channel to supply power to the power distribution cabinet (010AR) when all AC power supplies are lost, thereby alleviating the accident consequences, and providing a time window for the recovery of AC power supplies inside and outside the factory. Moreover, the number of access cables of the power distribution cabinet (010AR) and the space occupied by a cable channel are reduced, and the cost is saved.
Description
Technical field
The invention belongs to field of electrical control, be specifically related to a kind of distribution system, this distribution system is used in nuclear power station or other distribution facilities.
Background technology
After Fukushima nuclear accident, State Bureau of Nuclear Safety proposes improvement requirement to provide the nuclear safety level of nuclear power plant of China further, and issued " after Fukushima nuclear accident, nuclear power plant improves action generic specifications " as directive document, " technical requirement of portable power source and setting " is its important component part, technical requirement regulation is " when losing whole AC power, comprise factory site additional diesel generator group, interim power should be provided for implementing emergency measures by configuration mobile emergency power supply, to alleviate damage sequence, and provide time window for recovering factory's internal and external exchange power supply.”
Consider from the angle of power configuration and depth defense thereof, nuclear power plant needs to arrange portable power source and interface, under the pole small risk events of SBO power supply is lost in the dead electricity operating mode superposition of full factory, by portable power source for corresponding load provides interim power, the interface of low pressure portable power source is one of them important component part.
The load of power station under development mesolow portable power source is the load of certain power-supply system, therefore they are connected on its distribution bus, therefore a termination case (antidetonation classification: 1 grade) is set in this power-supply system diesel generating set factory building, access portable diesel generating set and former power supply if desired to the cable of its power distribution cabinet, and utilize original supplying channels to power to its power distribution cabinet.
It is improve one of action after Fukushima accident that low pressure moves diesel generating set, all devices was ordered goods at that time, in line with the principle minimum on the impact of original system when arranging access point, and consider that the probability that the accident needing low pressure portable power source to access occurs is very low, just only be provided with termination case, termination case is not fixed with distribution board and be connected, merely provide the means of interim termination during an accident, former stube cable need be extracted out and be transferred to termination case during termination, but when regularly drilling, and former stube cable is three 185mm
2hard cable, when each mobile diesel engine generator access test, all this cable to be extracted, bend, movement, easily damage cable, and field conduct difficulty be large.
Summary of the invention
For the defect existed in prior art, the invention provides a kind of distribution system, this distribution system can, when generating set breaks down, utilize original supplying channels to power to power distribution cabinet, without the need to extracting former cable out, time saving and energy saving; Decrease the space that the power distribution cabinet access quantity of cable and cable passage take, reduce use cost.
For reaching above object, the technical solution used in the present invention is: provide a kind of distribution system, comprises two stationary power generation units, power distribution cabinet and dislocation generation unit for subsequent use each other; Two described fixed generator groups are connected with power distribution cabinet respectively by respective cable, are provided with termination case in the factory building of stationary power generation unit, and described stationary power generation unit is connected with power distribution cabinet by described termination case; Described dislocation generation unit is connected with termination case by cable.
Further, described termination case 501CR, when stationary power generation unit 011AP runs, is the part of current supply circuit, and namely termination case 501CR one end connects generating set, and the other end connects power distribution cabinet 010AR.
Further, when described dislocation generation unit 501AP needs to drop into, the stube cable L1 of stationary power generation unit 011AP and termination case 501CR removes, the cable L2 of described dislocation generation unit 501AP is connected with termination case 501CR, termination case 501CR one end connects dislocation generation unit 501AP, and the other end connects power distribution cabinet 010AR.
Further, maintenance position selector switch is provided with in the control loop of described stationary power generation unit.
Further, the cable that each stationary power generation unit is connected with power distribution cabinet is provided with inlet wire contactor, two inlet wire contactor lockings each other.
Advantageous Effects of the present invention is:
(1) the invention provides access point and the termination case of a temporary source, this termination case is a part for current supply circuit when normal operation, when generating set is unavailable, provides the interface of temporary source, with the consequence of alleviation accident, and provide time window for recovering factory's internal and external exchange power supply;
(2) temporary source of the present invention utilizes original supplying channels to power to power distribution cabinet, decreases the quantity of power distribution cabinet access cable, decreases the space that cable passage takies;
(3) generating set of the present invention is provided with maintenance position selector switch, when this selector switch is in maintenance position, startup of unit is prohibited, when adopting portable power source to power, the cable that diesel generating set starting will be made to cause being removed due to automatic starting command is charged, avoids the injury to equipment and personnel.
Accompanying drawing explanation
Fig. 1 is the structural representation of distribution system of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, it is distribution system provided by the invention, this distribution system is mainly used in nuclear power station or other distribution facilities, it comprises two stationary power generation unit 010AP, 011AP for subsequent use each other, power distribution cabinet 010AR, termination case 501CR and interim dislocation generation unit 501AP, two stationary power generation units 010AP, 011AP are connected with power distribution cabinet 010AR respectively by respective cable, for power distribution cabinet provides power supply.Termination case 501CR is arranged in the factory building of stationary power generation unit, and stationary power generation unit 011AP is connected with power distribution cabinet 010AR through termination case 501CR.Termination case 501CR, when stationary power generation unit 011AP runs, is the part of current supply circuit, and namely termination case 501CR one end connects generating set, and the other end connects power distribution cabinet 010AR.
Dislocation generation unit 501AP is connected with termination case by cable L2.When dislocation generation unit 501AP needs to drop into, the stube cable L1 of stationary power generation unit 011AP and termination case 501CR can be removed, again the cable L2 of dislocation generation unit 501AP is connected with termination case 501CR, now termination case 501CR one end connects dislocation generation unit 501AP, and the other end connects power distribution cabinet 010AR.
Dislocation generation unit 501AP, only need start dislocation generation unit during input can restore electricity for power distribution cabinet 010AR.
Be provided with maintenance position selector switch in the control loop of stationary power generation unit 011AP, when this selector switch is positioned at maintenance position, startup of unit is prohibited, and avoids the non-essential starting when the stube cable L1 of stationary power generation unit and termination case 501CR removes.
Thus, distribution system of the present invention, when normally running, generating set 010AP and 011AP is likely for power distribution cabinet 010AR powers, but their inlet wire contactor 101JA and 102JA is locking each other, object is that guarantee two diesel generating sets can not paired running; Namely be that when certain stationary power generation unit starting failure, another stationary power generation unit starts automatically as power distribution cabinet 010AR powers by two stationary power generation units power supply when power distribution cabinet is normal.
Be be provided with a termination case 501CR in the loop that powers of power distribution cabinet 010AR at generating set 011AP.When interim dislocation generation unit 501AP accesses, from the service cable L1 that termination case 501CR removes generating set 011AP, the service cable L2 of temporary source is accessed this termination case, utilizes original service cable L3 passage to power to power distribution cabinet 010AR.Owing to when termination case 501CR normally runs being a part for current supply circuit, its power supply reliability is verified in periodical test, this just substantially increases the success rate that portable power source drops into, and now only has starting dislocation generation unit can restore electricity for power distribution cabinet 010AR.
The long cable section of ingoing line of power distribution cabinet is two-way under accidental conditions, and the access of temporary source does not increase the long cable section of ingoing line of power distribution cabinet, decreases the difficulty of power distribution cabinet termination, avoids the space increasing the cable passage that brings in long cable section of ingoing line loop and take simultaneously.
For stationary power generation unit 011AP, in its control system, be provided with a maintenance position selector switch, maintenance position selector switch is located on the on-site control 002AR of generating set 011AP factory building.When temporary source accesses, must take measures to avoid the starting of generating set 011AP.Operating personnel are before removing the cable L1 of generating set 011AP from termination case 501CR, first the selector switch on on-site control 002AR is placed in maintenance position, now starting command is by conductively-closed automatically, and this maintenance position selector switch locking start loop concurrent " unit maintenance " signal is to master-control room.The cable that is removed will be caused charged because stationary power generation unit starts like this, avoid the injury to equipment and personnel.
Distribution system of the present invention is not limited to above-mentioned embodiment, and those skilled in the art's technical scheme according to the present invention draws and other execution mode belongs to technological innovation scope of the present invention equally.
Claims (5)
1. a distribution system, comprise two stationary power generation unit (010AP for subsequent use each other, 011AP), power distribution cabinet (010AR) and dislocation generation unit (501AP), two described stationary power generation unit (010AP, 011AP) be connected with power distribution cabinet (010AR) respectively by respective cable, it is characterized in that: in the factory building of stationary power generation unit, be provided with termination case (501CR), described stationary power generation unit is connected with power distribution cabinet (010AR) by described termination case (501CR); When stationary power generation unit is unavailable, described dislocation generation unit (501AP) is connected with termination case (501CR) by cable.
2. a kind of distribution system as claimed in claim 1, is characterized in that: described termination case 501CR, when stationary power generation unit 011AP runs, is the part of current supply circuit, and namely termination case 501CR one end connects generating set, and the other end connects power distribution cabinet 010AR.
3. a kind of distribution system as claimed in claim 2, it is characterized in that: when described dislocation generation unit 501AP needs to drop into, the stube cable L1 of stationary power generation unit 011AP and termination case 501CR removes, the cable L2 of described dislocation generation unit 501AP is connected with termination case 501CR, termination case 501CR one end connects dislocation generation unit 501AP, and the other end connects power distribution cabinet 010AR.
4. a kind of distribution system as described in any one of claim 1-3, is characterized in that: be provided with maintenance position selector switch in the control loop of described stationary power generation unit.
5. a kind of distribution system as claimed in claim 4, is characterized in that: the cable that each stationary power generation unit is connected with power distribution cabinet is provided with inlet wire contactor, two inlet wire contactor lockings each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510323845.9A CN104967208A (en) | 2015-06-12 | 2015-06-12 | Power distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510323845.9A CN104967208A (en) | 2015-06-12 | 2015-06-12 | Power distribution system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104967208A true CN104967208A (en) | 2015-10-07 |
Family
ID=54221199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510323845.9A Pending CN104967208A (en) | 2015-06-12 | 2015-06-12 | Power distribution system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104967208A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655478A (en) * | 2017-01-25 | 2017-05-10 | 云南水务投资股份有限公司 | Low-voltage emergency safety power supply system of household garbage power plant and control method of system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701193A (en) * | 2013-12-27 | 2014-04-02 | 大唐贵州发耳发电有限公司 | Power distribution device of diesel generator |
| CN104079062A (en) * | 2014-07-11 | 2014-10-01 | 云南电网公司带电作业分公司 | Method for making mobile power generation system be connected into power grid for operation through spare power automatic switching technology |
| US20150097436A1 (en) * | 2012-11-09 | 2015-04-09 | Amazon Technologies, Inc. | Busbar Connection Assembly |
-
2015
- 2015-06-12 CN CN201510323845.9A patent/CN104967208A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150097436A1 (en) * | 2012-11-09 | 2015-04-09 | Amazon Technologies, Inc. | Busbar Connection Assembly |
| CN103701193A (en) * | 2013-12-27 | 2014-04-02 | 大唐贵州发耳发电有限公司 | Power distribution device of diesel generator |
| CN104079062A (en) * | 2014-07-11 | 2014-10-01 | 云南电网公司带电作业分公司 | Method for making mobile power generation system be connected into power grid for operation through spare power automatic switching technology |
Non-Patent Citations (2)
| Title |
|---|
| 于永强: "核电站增加厂用移动电源的探讨与实践", 《电力安全技术》 * |
| 梁贵毅等: "通信枢纽楼柴油发电机组及其机房设计与分析", 《邮电设计技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655478A (en) * | 2017-01-25 | 2017-05-10 | 云南水务投资股份有限公司 | Low-voltage emergency safety power supply system of household garbage power plant and control method of system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11073807B2 (en) | Method and apparatus for activation and de-activation of power conditioners in distributed resource island systems using low voltage AC | |
| US10153641B2 (en) | Extending black-start availability using energy storage systems | |
| CN205231835U (en) | Structure for large -scale thermal power factory unit high pressure service power each other is being equipped with | |
| CN104065065B (en) | Utilize the double method making emergency power supply diesel engine generator of black starting-up diesel engine generator | |
| EP2784305B1 (en) | A system for providing electrical power to a wind turbine component. | |
| CN104184138A (en) | Method for one end of multi-end flexible direct-current power transmission system to exit from operation system | |
| CN103441567A (en) | Emergency electrical power supply system and power supply method related to nuclear power station passive system | |
| WO2016094939A1 (en) | Power system and method | |
| CN103701203A (en) | Direct current system for nuclear power plant | |
| CN102163874B (en) | Power supplying method of electrical power system with high-powered and high-voltage diesel generating set for large data memory center | |
| CN204741339U (en) | Control wiring structure of two public emergency power supplies of turbo generator set | |
| CN202050285U (en) | Power system of high-power high-voltage diesel generator set of larger data storage center | |
| CN104333126A (en) | Large hydropower engineering power supply system | |
| CN104198951A (en) | Reliability validation method of 380V mobile emergency power source of nuclear power station | |
| CN203983755U (en) | The black startup in power plant turns security personnel's step-down power distribution equipment | |
| CN104967208A (en) | Power distribution system | |
| CN102629777B (en) | Standby power system of DC power source | |
| CN116111715A (en) | High-capacity offshore converter station emergency power supply wiring system and control method thereof | |
| CN202049382U (en) | Electric power system for pulp mill owned critical power plant black-start | |
| CN204696788U (en) | A kind of large-size thermal power plant high-voltage Auxiliary power supply three power supply automatic switchover wiring construction | |
| CN203691053U (en) | High-risk power consumption user emergency power supply connection structure | |
| CN203660637U (en) | Improved diesel generator power distribution apparatus | |
| CN104198952A (en) | Reliability validation method of 6.6KV mobile emergency power source of nuclear power station | |
| CN110854994A (en) | Rapid access device and method for mobile diesel generator set | |
| CN102183936B (en) | Blackout start electric power system of autonomous critical heat-engine plant of paper mill and power supply method of system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151007 |
|
| RJ01 | Rejection of invention patent application after publication |