CN104537936A - Low-voltage transformer area simulation practical training device for rural network low-voltage distribution box - Google Patents

Low-voltage transformer area simulation practical training device for rural network low-voltage distribution box Download PDF

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Publication number
CN104537936A
CN104537936A CN201510002238.2A CN201510002238A CN104537936A CN 104537936 A CN104537936 A CN 104537936A CN 201510002238 A CN201510002238 A CN 201510002238A CN 104537936 A CN104537936 A CN 104537936A
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CN
China
Prior art keywords
simulation
voltage
low
rural
inlet wire
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Pending
Application number
CN201510002238.2A
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Chinese (zh)
Inventor
张长营
夏振雨
衡思坤
支长义
张军照
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU PROVINCIAL POWER Co VOCATIONAL SKILLS TRAINING BASE
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Lianyungang Power Supply Co of Jiangsu Electric Power Co
Original Assignee
JIANGSU PROVINCIAL POWER Co VOCATIONAL SKILLS TRAINING BASE
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Lianyungang Power Supply Co of Jiangsu Electric Power Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JIANGSU PROVINCIAL POWER Co VOCATIONAL SKILLS TRAINING BASE, State Grid Corp of China SGCC, State Grid Jiangsu Electric Power Co Ltd, Lianyungang Power Supply Co of Jiangsu Electric Power Co filed Critical JIANGSU PROVINCIAL POWER Co VOCATIONAL SKILLS TRAINING BASE
Priority to CN201510002238.2A priority Critical patent/CN104537936A/en
Publication of CN104537936A publication Critical patent/CN104537936A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/06Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
    • G09B23/18Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
    • G09B23/188Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for motors; for generators; for power supplies; for power distribution

Abstract

The invention discloses a low-voltage transformer area simulation practical training device for a rural network low-voltage distribution box. The simulation practical training device comprises a simulation high-voltage inlet wire, a simulation transformer, a simulation low-voltage power source inlet wire, the rural network intelligent distribution box, a simulation low-voltage outlet wire, a low-voltage simulation user, a simulation loading power source, a fault simulator, a master station communication server and a master station system. The simulation practical training device is divided into two parts for simulating an indoor master station system part, a simulation loading system part and a transformer area and the low-voltage user on a pole, a simulation outdoor part simulates a 10kV high-voltage inlet wire in the mode that the wire enters above the pole, the high-voltage inlet wire simulates high-voltage inlet wire control through a falling type fuse protector, a real high-voltage wire and a real falling type fuse protector are adopted for the inlet wire, two simulation poles are arranged between two pieces of H-shaped steel, the simulation transformer is installed on the upper layer, the rural network intelligent distribution box is installed on the lower layer, and the simulation loading power source is placed in a room, and connected into the indoor rural network intelligent distribution box and a load of a low-voltage simulation user meter through cables. The simulation practical training device has the advantages of being high in reliability and stability.

Description

A kind of low-voltage platform area simulation and training device of Rural Low-Voltage Power Network panel box
Technical field
The invention belongs to rural power grids technical field, particularly a kind of low-voltage platform area simulation and training device of Rural Low-Voltage Power Network panel box.
Background technology
Chinese countryside electrical network is through extensive upgrade of rural power grids, possesses certain basis, but go back ubiquity infrastructure insufficient investment, grid structure is not quite reasonable, the feature that technological means falls behind relatively, construction of rural intelligent power network also needs the feature according to rural power grids, economical and practical, focus on actual effects, and builds stage by stage.
At present, both at home and abroad to based on the teaching of the rural power grids intelligent distribution system of rural power grids intelligent type low-voltage panel box and the associative skills of customer charge and metering and training, only that the mode taking master worker to train an apprentice carries out scene education and operation demonstration, due to the unicity of field condition, master worker cannot demonstrate rural power grids intelligent type low-voltage panel box fault, single three phase metering user and Master Station Software system Problems existing and settling mode, the instruction mode that can only take goes wrong deals with problems, can not reproduce contingent phenomenon of the failure in the operation of rural power grids intelligent type low-voltage panel box with regard to existing like this, rural power grids intelligence distribution transformer terminals software test service data has unicity simultaneously, cannot realize carrying out personalization examination to multidigit student, this form of teaching is unfavorable for understanding and the study of student, denounce in teaching practice a lot of.Along with the development of intelligent grid, after the spread that particularly rural power grids intelligentized updating is transformed, there are personnel not understand new equipment new product and be unfamiliar with, simultaneously because corresponding post staff's level of skill is uneven, cause equipment to install and have problems with when running.
Summary of the invention
The object of the present invention is to provide and a kind ofly can meet the low-voltage platform area simulation and training device of Rural Low-Voltage Power Network panel box that rural power grids marketing distribution personnel carry out the installation of rural power grids intelligent low-pressure platform sound zone system, debugging, maintenance needs.
The technical solution realizing the object of the invention is: a kind of low-voltage platform area simulation and training device of Rural Low-Voltage Power Network panel box, comprise simulated high-pressure inlet wire, analogue transformer, analog low voltage electric power inlet wire, rural power grids intelligent distribution box, simulation low-pressure line-outgoing, low-voltage simulation user, simulation loading power supply, fault simulator, main website communication server and main station system, wherein main station system comprises data storage server, data processing server, front server, Web server, gateway server, database server and office terminal; This simulation and training device is divided into two parts, main station system and simulated loading system part in simulating chamber respectively, transformer platform area and low-voltage customer on simulating rod, simulation outdoor section is by bar upper wiring pattern simulation 10kV high pressure inlet wire, high pressure inlet wire is controlled by fuse switch simulated high-pressure inlet wire, and inlet wire adopts real high-tension bus-bar and real fuse switch, and 2 artificial line bars are installed between joist steel respectively, analogue transformer is installed on upper strata, and rural power grids intelligent distribution box is installed by lower floor; Simulation loading power supply is placed on indoor, receives in indoor rural power grids intelligent distribution box respectively and in low-voltage simulation subscriber's meter meter load by cable mode.
Described low-voltage simulation user comprises single-phase user and three-phase user.
Web server in described main station system is connected with gateway server, database server respectively, Web server can directly obtain data from database server and form webpage or by applying for data processing server, obtain the required data layout webpage generated.
Described artificial line bar adopts wood simulation, and artificial line bar height is 5 meters.
Database server in described main station system is 2, and database have employed the technology of automated back-up, 2 database servers stand-by heat each other, ensures normally carrying out of system data process.
Compared with prior art, its remarkable advantage is in the present invention: (1), by carrying out applying pilot in electric system vocational skills training base, reaches the object of checking and publicity; (2) can popularize in an all-round way by each training base in the whole nation, meet the skills practice training of response post personnel; (3) improve rural power grids marketing distribution and run work in-site installation, operation, maintenance technical ability.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the low-voltage platform area simulation and training device of Rural Low-Voltage Power Network panel box of the present invention.
Fig. 2 is the structural drawing (dimensional units mm) of analogue transformer in apparatus of the present invention.
Fig. 3 is the structural drawing of rural power grids intelligent distribution box in apparatus of the present invention, and wherein (a) is front view, (b) be side view, (c) is rear view.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further details.
Low-voltage platform area simulation and training system based on rural power grids intelligent type low-voltage panel box utilizes infotech, set up the topological relation of grid equipment and power customer basic data, form the integration data model at station-line-change-family, build the battalion of running through customer service overall process and join integrated information platform, the integrated Marketing Management Information System of emphasis, distribution Production MIS, distribution project management information system, metering automation system, dispatch automated system, according to actual conditions progressively integrated distribution planning system, the related data of distribution automation system, realize distribution planning, build, the application function of operation and the integrative coordinated running of marketing service, the Collaboration of specification and unified each specialty, comprehensive raising power supply reliability, continuous lifting level of customer service.
Experience system of the present invention is with reference to being installed in State Grid Corporation of China's power supply area a-c cycle 50Hz in rural power grids, and rated voltage is relevant design codes, the specification such as 400V and following rural power grids intelligent type low-voltage panel box, the collection of Intelligent rural network power information, Intelligent rural network distribution terminal main station system.Experience system is 400kVA and following transformer terminal outdoor low voltage panel box and outlet thereof the working line to analog subscriber by simulation capacity; the functional units such as the metering in rural power grids intelligent type low-voltage panel box, measurement, power information collection, control, protection, power distribution, reactive-load compensation and filtering are carried out upgrading, meets the real training demand that rural power grids marketing distribution personnel carry out the installation of rural power grids intelligent low-pressure platform sound zone system, debugging, maintenance.
Composition graphs 1, the low-voltage platform area simulation and training device of Rural Low-Voltage Power Network panel box of the present invention, comprise simulated high-pressure inlet wire, analogue transformer, analog low voltage electric power inlet wire, rural power grids intelligent distribution box, simulation low-pressure line-outgoing, low-voltage simulation user, simulation loading power supply, fault simulator, main website communication server and main station system, wherein main station system comprises data storage server, data processing server, front server, Web server, gateway server, database server and office terminal; This simulation and training device is divided into two parts, main station system and simulated loading system part in simulating chamber respectively, transformer platform area and low-voltage customer on simulating rod, simulation outdoor section is by bar upper wiring pattern simulation 10kV high pressure inlet wire, high pressure inlet wire is controlled by fuse switch simulated high-pressure inlet wire, and inlet wire adopts real high-tension bus-bar and real fuse switch, and 2 artificial line bars are installed between joist steel respectively, analogue transformer is installed on upper strata, and rural power grids intelligent distribution box is installed by lower floor; Simulation loading power supply is placed on indoor, receives in indoor rural power grids intelligent distribution box respectively and in low-voltage simulation subscriber's meter meter load by cable mode.
Described low-voltage simulation user comprises single-phase user and three-phase user.Web server in described main station system is connected with gateway server, database server respectively, Web server can directly obtain data from database server and form webpage or by applying for data processing server, obtain the required data layout webpage generated.Described artificial line bar adopts wood simulation, and artificial line bar height is 5 meters.Database server in described main station system is 2, and database have employed the technology of automated back-up, 2 database servers stand-by heat each other, ensures normally carrying out of system data process.
1 analogue transformer part
Composition graphs 2, described analogue transformer and line part adopt profile and the mode of connection and real systems compliant to design, high pressure inlet wire and fuse switch adopt real system to realize, 10kV transformer adopts the analogue transformer consistent with real transformer profile, analogue transformer adopts wood design, the profile of transformer and high-low pressure connection terminal and insulation column, oil level indicator, adjustment of field excitation switch etc. consistent with real transformer, transformer low voltage outlet inside by simulation loading voltage source, voltage signal is input to simulation system.Analogue transformer profile and size are as shown in Figure 2.
2 simulated intelligence type low-tension distribution box parts
1) artificial intelligence distribution box body:
Composition graphs 3, described artificial intelligence distribution box body design adopts state network mark pseudotype II type panel box (vertical cabinet, capacity is: 200kVA/400A) cabinet design, be divided into line unit, metering/measuring unit, intelligent Distributed Transformer Terminal Unit, capacitor unit etc. according to function, concrete cabinet design can see " Q/GDW 614-2011 rural power grids intelligent type low-voltage panel box functional specification and technical conditions ".Box house critical piece configuration list is as shown in table 1.
Table 1
2) line unit;
The main electrical scheme of power supply unit adopts built on stilts inlet wire 1 tunnel, low-pressure line-outgoing 3 tunnel, and transmission line circuit wherein 2 tunnels is access electric energy meter and simulation load loop, and another 1 tunnel is as back-up circuit.Outlet switch selects residue electric leakage action breaker.Service entrance switch can add motor-operating mechanism, realizes the remote control divide-shut brake function of service entrance switch.
Inlet wire on-load switch adopts real switch designs; turnover line end configure band has the low-pressure plastic shell circuit breaker (RCD) of motor-operating mechanism; and possess and obviously disconnect mark; RCD possesses communication function and short circuit breaking capacity; according to distribution transformer capacity or actual load adjustment overload protection value, automatic reclosing function can be possessed.Residual operating current is that 30 ~ 500mA is adjustable, and 30 ~ 75mA is adjustable for sudden change residual action current.
Equipment loads access: access intelligent load simulation power supply in lead-in circuit breaker end of incoming cables, intelligent load simulation electric power output voltage, current value can regulate continuously, and regulate and read in detail as 0.1V and 0.01A, output current value three-phase can be arranged separately.Voltage gear is 3 × 220V, and electric current gear is 1A, 1.5A, 2.5A, 5A.
3) rural power grids intelligence distribution transformer terminals;
The intelligent distribution transformer terminals that intelligence distribution transformer terminals adopts meets the standard-required of Q/GDW 615-2011 " rural power grids intelligence distribution transformer terminals functional specification and technical conditions ", hand at rural power grids intelligence distribution transformer terminals and adopt secondary circuit access fault simulator, analog loopback voltage misphase sequence, broken voltage line; Electric current misphase sequence, current open, the simple wiring faults such as short circuit current.Increase fault simulation in the communication of intelligent distribution transformer terminals 485 and output control circuit, the communication failure of pseudo-terminal and control fault, search and analysis for student.
4) metering/meter meter:
Be separated out at box house and aim at intelligent electric energy meter (comprising secondary terminal box) and aim at the metering separate space of measuring mutual inductor and installing and using, intelligent electric energy meter is selected to meet Q/GDW 358 standard-required, and apolegamy precision is not less than the metering current mulual inductor of 0.5S level.Second loop return wiring selects the sub-thread copper conductor meeting code requirement.
Measure fault and load access: at the standard current transformer of measurement meter loop access 0.5S level 5:5, between transformer secondary circuit and combined connection box, access fault simulator, realize measurement loop voltage misphase sequence, broken voltage line; Electric current misphase sequence, current open, the simple wiring faults such as short circuit current.
5) reactive-load compensation loop:
Reactive-load compensation loop can realize three-phase total compensation or phase-splitting dynamic compensation; mend capacitor altogether and adopt triangular form wiring; benefit capacitor is divided to adopt star-star connection; reactive compensation unit possesses overcurrent or the basic defencive function of quick-break, quick-switching capacitor switch reaches contactless, no-flashy-flow, without superpotential switching.
Capacitor switching switch can take RS485 communication port to control.
Capacitor switching simulate: by arrange intelligent load simulation power supply export electric current and voltage between angle, make capacitor switching, by the feeder number that testing capacitor accesses, readjusting can angle value between the electric current and voltage that exports of load simulation power supply, reaches the object of reactive-load compensation.
3 analog subscriber table meter parts
Design single-phase, three-phase user pocket watch case, configuration simulation type list, three-phase intelligent electric-energy meter, simulation low-voltage customer is copied by low pressure carrier wave mode and is taken family electric energy meter data, by loading simulation power supply analog subscriber power load environment.For intelligent distribution transformer terminals collection provides basic data.
4 fault loading sections
Fault loading section controls secondary circuit and electric energy meter metering in operation, loop is adopted in terminal friendship, Communication Control loop design fault loads, fault loads and is arranged through computing machine control realization, and each phenomenon of the failure simulation and failure cause are shown by photo image on PC.
5 load simulation parts
Artificial intelligence voltage source is increased in the main point of incoming cables of power supply, artificial intelligence current source is increased at each transmission line circuit, analogue current sources is increased in capacitor switching loop, after simulative relation between each current source and size of current are calculated by computer logic, control simulation power supply exports and realizes, and can according to user's actual load setting output load curve, simulation table district load variations.
The present invention realizes distribution transforming parameter monitoring, metering, power information collection, communication, dynamic passive compensation control, harmonics restraint and three-phase imbalance by the intelligent low pressure management main station system in Training Room to simulated intelligence power distribution station and administers, realizes Electrical Safety and protection of electric power facility Real-Time Monitoring and early warning in the application function of one.

Claims (5)

1. the low-voltage platform area simulation and training device of a Rural Low-Voltage Power Network panel box, it is characterized in that, comprise simulated high-pressure inlet wire, analogue transformer, analog low voltage electric power inlet wire, rural power grids intelligent distribution box, simulation low-pressure line-outgoing, low-voltage simulation user, simulation loading power supply, fault simulator, main website communication server and main station system, wherein main station system comprises data storage server, data processing server, front server, Web server, gateway server, database server and office terminal; This simulation and training device is divided into two parts, main station system and simulated loading system part in simulating chamber respectively, transformer platform area and low-voltage customer on simulating rod, simulation outdoor section is by bar upper wiring pattern simulation 10kV high pressure inlet wire, high pressure inlet wire is controlled by fuse switch simulated high-pressure inlet wire, and inlet wire adopts real high-tension bus-bar and real fuse switch, and 2 artificial line bars are installed between joist steel respectively, analogue transformer is installed on upper strata, and rural power grids intelligent distribution box is installed by lower floor; Simulation loading power supply is placed on indoor, receives in indoor rural power grids intelligent distribution box respectively and in low-voltage simulation subscriber's meter meter load by cable mode.
2. the low-voltage platform area simulation and training device of Rural Low-Voltage Power Network panel box according to claim 1, is characterized in that, described low-voltage simulation user comprises single-phase user and three-phase user.
3. the low-voltage platform area simulation and training device of Rural Low-Voltage Power Network panel box according to claim 1, it is characterized in that, Web server in described main station system is connected with gateway server, database server respectively, Web server can directly obtain data from database server and form webpage or by applying for data processing server, obtain the required data layout webpage generated.
4. the low-voltage platform area simulation and training device of Rural Low-Voltage Power Network panel box according to claim 1, is characterized in that, described artificial line bar adopts wood simulation, and artificial line bar height is 5 meters.
5. the low-voltage platform area simulation and training device of Rural Low-Voltage Power Network panel box according to claim 1, it is characterized in that, database server in described main station system is 2, database have employed the technology of automated back-up, 2 database servers stand-by heat each other, ensures normally carrying out of system data process.
CN201510002238.2A 2015-01-04 2015-01-04 Low-voltage transformer area simulation practical training device for rural network low-voltage distribution box Pending CN104537936A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104794968A (en) * 2015-05-20 2015-07-22 国家电网公司 Low-voltage electric energy measuring, mounting and connection analyzing comprehensive practical training device
CN104808091A (en) * 2015-05-12 2015-07-29 国网重庆市电力公司电力科学研究院 Simulation system for low-voltage distribution network
CN105845002A (en) * 2016-04-28 2016-08-10 国网河南省电力公司技能培训中心 Fault simulation device for low voltage power distribution substation
CN106297465A (en) * 2016-08-29 2017-01-04 国网山东省电力公司鄄城县供电公司 Distribution produces repairing commander's experience system
CN106952545A (en) * 2017-04-30 2017-07-14 国网江苏省电力公司职业技能训练基地 A kind of transformer body-sensing experience system
CN109697912A (en) * 2019-03-07 2019-04-30 郑州大信科技有限公司 A kind of power distribution network O&M experience system
CN110288883A (en) * 2019-05-10 2019-09-27 中国南方电网有限责任公司超高压输电公司检修试验中心 A kind of converter power transformer fault simulation platform and method
CN110674158A (en) * 2019-10-15 2020-01-10 广东电网有限责任公司 Method and system for automatically updating local area for low-voltage user
CN112967556A (en) * 2021-03-05 2021-06-15 浙江展杭自动化科技有限公司 Distribution teaching device with industrial artificial intelligence

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104808091A (en) * 2015-05-12 2015-07-29 国网重庆市电力公司电力科学研究院 Simulation system for low-voltage distribution network
CN104794968B (en) * 2015-05-20 2018-03-13 国家电网公司 Low-voltage electric energy metering is installed and wiring analysis comprehensive training device
CN104794968A (en) * 2015-05-20 2015-07-22 国家电网公司 Low-voltage electric energy measuring, mounting and connection analyzing comprehensive practical training device
CN105845002A (en) * 2016-04-28 2016-08-10 国网河南省电力公司技能培训中心 Fault simulation device for low voltage power distribution substation
CN105845002B (en) * 2016-04-28 2018-08-28 国网河南省电力公司技能培训中心 A kind of low-voltage distribution transformer platform district failure simulation device
CN106297465A (en) * 2016-08-29 2017-01-04 国网山东省电力公司鄄城县供电公司 Distribution produces repairing commander's experience system
CN106952545A (en) * 2017-04-30 2017-07-14 国网江苏省电力公司职业技能训练基地 A kind of transformer body-sensing experience system
CN109697912A (en) * 2019-03-07 2019-04-30 郑州大信科技有限公司 A kind of power distribution network O&M experience system
CN109697912B (en) * 2019-03-07 2021-01-29 郑州大信科技有限公司 Power distribution network operation and maintenance training system
CN110288883A (en) * 2019-05-10 2019-09-27 中国南方电网有限责任公司超高压输电公司检修试验中心 A kind of converter power transformer fault simulation platform and method
CN110674158A (en) * 2019-10-15 2020-01-10 广东电网有限责任公司 Method and system for automatically updating local area for low-voltage user
CN110674158B (en) * 2019-10-15 2022-02-15 广东电网有限责任公司 Method and system for automatically updating local area for low-voltage user
CN112967556A (en) * 2021-03-05 2021-06-15 浙江展杭自动化科技有限公司 Distribution teaching device with industrial artificial intelligence

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Application publication date: 20150422