CN203825910U - Electricity leakage fault processing simulation practical device - Google Patents
Electricity leakage fault processing simulation practical device Download PDFInfo
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- CN203825910U CN203825910U CN201420115564.5U CN201420115564U CN203825910U CN 203825910 U CN203825910 U CN 203825910U CN 201420115564 U CN201420115564 U CN 201420115564U CN 203825910 U CN203825910 U CN 203825910U
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- leak current
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- practical device
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- 238000004088 simulation Methods 0.000 title claims abstract description 30
- 230000005611 electricity Effects 0.000 title abstract description 11
- 238000012545 processing Methods 0.000 title abstract description 9
- 238000012549 training Methods 0.000 claims abstract description 20
- 230000001681 protective effect Effects 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims description 29
- 238000005070 sampling Methods 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 4
- 230000006870 function Effects 0.000 abstract description 9
- 230000009471 action Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract 2
- 230000007717 exclusion Effects 0.000 abstract 1
- 238000011835 investigation Methods 0.000 abstract 1
- 238000013024 troubleshooting Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 11
- 230000015556 catabolic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
Abstract
The utility model provides an electricity leakage fault processing simulation practical device. The electricity leakage fault processing simulation practical device is safe to use and convenient to operate, and has comprehensive functions. With the electricity leakage fault processing simulation practical device of the utility model adopted, various problems appearing in the operating process of a residual current action protective system in an urban low-voltage grid public power distribution and transformation stage area can be simulated highly. The electricity leakage fault processing simulation practical device includes a simulation system which is used for simulating a level-three residual current protection system in an actual low-voltage power distribution and transformation stage area and is provided with a plurality of fault setting points, and a fault setting module which is used for controlling the simulation system to set faults and includes a relay control unit, a relay group and an MCU for controlling the relay control unit. The electricity leakage fault processing simulation practical device has personal safety protection, programmable, program controlling, timing and voice prompt functions. With the electricity leakage fault processing simulation practical device adopted, students can master on-site investigation and troubleshooting skills step by step through steps such as actual measurement, operation, observation and exclusion. The electricity leakage fault processing simulation practical device can be applied to line fault setting, analysis, search and training.
Description
Technical field
The utility model relates to a kind of program-controlled analog device, is specifically related to a kind of Simulated training device that is applied to the leak current fault processing of rural power grids power distribution station.
Background technology
Due to putting into operation of aftercurrent action protecting system; the safe operation of distribution network system is ensured reliably; avoided significantly the damage of electricity supply and use equipment and the generation of human casualty accident, therefore aftercurrent action protecting system is used widely.Actual three grades, low-voltage distribution transformer platform district residual current protecting system; as shown in Figure 8; this system is the on-the-spot conventional a set of protection system of electricity consumption, and this system comprises voltage, current sampling circuit, reactive compensation capacitor automatic control loop, single-phase user, phase three-wire three user and three-phase and four-line user.In Fig. 8, QF1 is one-level residual current circuit breaker; QF23, QF25 are secondary residual current circuit breaker; 201-713 is three grades of residual current circuit breakers; G1-G5 serves as theme; G21-G23, G31-G33,, G41-G43, G51-G53, G61-G63, G71-G73 be branch line, 201-205,206-210,211-213,301-305,306-310,311-313,401-405,406-410,411-413,501-505,506-510,511-513,601-605,606-610/611-613,701-705,706-710,711-713 are user's on line, wherein, 201-210 is single-phase user, 211 is phase three-wire three user, and 212,213 is three-phase and four-line user.
But; some exists and user improper use lack of standardization to protector operational management for electric unit; cause the serious phenomenon such as residual current operated protective device tripping, malfunction, overstep tripping; such as in resident family, there is the damaged leaky that occurs of insulated wire skin, residual current operated protective device does not have tripping operation in time etc.Along with the raising of people's lives condition, the go to the countryside propelling of policy of household electrical appliances, the unlatching that various household electrical appliance enter common people family's convertible frequency air-conditioner is disturbed and all can be made residual current operated protective device produce misoperation, affects resident's normal electricity consumption.
How correctly judge fast the reason of residual current operated protective device tripping operation, improve the technical ability of electrician's Solve on site problem, be electric power netting safe running in the urgent need to.
Utility model content
The purpose of this utility model is to provide a kind of leak current fault to process Simulated training device.This device uses safety, simple operation, complete function.Carry out height emulation for the various problem occurring in the aftercurrent action protecting system operational process of the public distribute-electricity transformer district of Rural Low-Voltage Power Network.
For achieving the above object, the scheme that the utility model is taked is:
A kind of leak current fault is processed Simulated training device, comprising:
Three grades, low-voltage distribution transformer platform district residual current protecting simulation system, is provided with some faults set-point;
Fault arranges module, comprises the MCU of relay control unit, relay group and pilot relay control module;
Described relay control unit is connected with relay group by relay control unit interface;
Also comprise the RS485 communication unit of realizing communication function;
Described MCU is connected in the bus of RS485 communication unit;
Described relay group connects fault set-point, and is connected to stake resistance.
Further, described simulation system comprises voltage sampling circuit, current sampling circuit, reactive compensation capacitor automatic control loop, simulates single-phase user, simulates phase three-wire three user and simulation three-phase and four-line user.
Further, also comprise the power supply unit to RS485 communication unit, MCU and relay control unit power supply simultaneously.
Further, described RS485 communication unit connects serial server, and serial server is connected with a host computer through netting twine again.
Further, also comprise the clock timing module in the bus that is connected to RS485 communication unit.
Particularly, described clock timing module comprises the single-chip microcomputer C8015F310 in the bus that is connected to RS485 communication unit and the display unit being connected with single-chip microcomputer C8015F310.
Further, also comprise the voice cue module in the bus that is connected to RS485 communication unit.
Particularly, described voice cue module comprises the single-chip microcomputer C8015F340 in the bus that is connected to RS485 communication unit; And the speech chip, voice power amplifier and the loudspeaker that connect successively.
Further, also comprise the some earth leakage protective devices in the bus that is connected to RS485 communication unit.
If above-mentioned the utility model is by adding earth leakage circuit breaker to ensure personal safety; Programmable function is controlled each module status by host computer and each module communication, when timing ga(u)ge, realizes by clock timing module, and voice message realizes by voice cue module.While thering is personal safety protection, program-controlled, timing ga(u)ge, the function of voice message.Student, by steps such as actual measurement, operation, observation, eliminatings, progressively grasps the on-the-spot technical ability of investigating and prosecuting, fixing a breakdown.This device should collect line fault setting, analyze and search, train.
The utility model is to integrate the multi-functional Practical training equipment device that training and learning, theoretical validation, practical operation, examination are taken an examination.Its use safety and simple operation, complete function.Can the normal leaky occurring in analog ligand radio area.This device can meet electrician and examine the circuit operation practical training project needs in qualification, also can be applicable to power supply bureau in countryside and the daily technique drill of power distribution rush-repair central task personnel simultaneously.This device is applicable to each work verification of professional technical ability department, electric power system grass-roots unit, training on electric power department, college, technical school, vocational school.
Brief description of the drawings
Fig. 1 a is overall appearance schematic diagram of the present utility model.
Fig. 1 b is the first panel schematic diagram of the present utility model.
Fig. 1 c is the second panel schematic diagram of the present utility model.
Fig. 1 d is the 3rd panel schematic diagram of the present utility model.
Fig. 1 e is fourth face plate schematic diagram of the present utility model.
Fig. 2 is the composition schematic block diagram that in the utility model, fault arranges module.
Fig. 3 is the schematic block diagram that the utility model repeat circuit control module is realized fault simulation.
Fig. 4 is the composition schematic block diagram of clock timing module in the utility model.
Fig. 5 is the composition schematic block diagram of voice cue module in the utility model.
Fig. 6 is communication modes connection diagram in the utility model.
Fig. 7 is the circuit diagram of simulating main line bar leak current fault in the utility model.
Fig. 8 is actual three grades, low-voltage distribution transformer platform district residual current protecting system schematic.
Embodiment
For above-mentioned feature and advantage of the present utility model can be become apparent, special embodiment below, and coordinate institute's accompanying drawing to be described in detail below.
Leak current fault is processed composition and the function of Simulated training device:
As shown in Fig. 1 a, Fig. 1 b, Fig. 1 c, Fig. 1 d and Fig. 1 e, process Simulated training device for leak current fault and there is a cabinet, there are four panels, be respectively the first panel, the second panel, the 3rd panel and fourth face plate.Four panels form three grades, low-voltage distribution transformer platform district residual current protecting simulation system jointly in order to simulate actual three grades, low-voltage distribution transformer platform district residual current protecting system; and simulating the normal problem occurring of this system, how trainee fixes a breakdown in the time that this system goes wrong.Simulation system comprises equally voltage sampling circuit, current sampling circuit, reactive compensation capacitor automatic control loop, simulates single-phase user, simulates phase three-wire three user and simulation three-phase and four-line user.Wherein, QK is knife-like switch, and M1, M2 are motor, and QF1, QF21 are one-level residual current circuit breaker, and QF23, QF25 are secondary residual current circuit breaker, and QF201-QF713 is three grades of residual current circuit breakers.QF1-QF21 simulates main line, QF23, QF25, simulation branch line, GXY(X representative digit, Y represents lowercase) simulation family on line, junction box～QF201 simulates house lead in, and FU1～FU3 is three safety boxs, KM1～KM3 is A.C. contactor (380V often opens).Fault set-point is located in above-mentioned analog line.
For control simulation system, fault fault is set module is set, comprising: the MCU of relay control unit, relay group and pilot relay control module.
As shown in Figure 2, relay control unit adopts RS485 communication unit, by the MCU of PC control relay control unit.MCU resolves the action command of host computer, and pilot relay control module, makes corresponding relay beat opening and closing and close.Coordinate integral array wiring, can realize the controlled setting that tens leakage (being fault set-point) is set simultaneously, the scope of setting comprises all analog subscribers.
Because the quantity of pilot relay is more, what adopt is magnetic latching relay simultaneously.Need a lot of control pins, in order to simplify the circuit of printed board, adopted scale programmable logic device CPLD.
As shown in Figure 3, relay group is by being connected with the interface of relay control unit.Relay group has mainly realized the wiring faults of ground resistance earth and earth leakage protective device terminal.Relay control unit connects corresponding stake resistance to realize the object that fault is set by the corresponding relay in actuating relay unit.
As shown in Figure 5, clock timing module adopts independent single-chip microcomputer, is connected in the bus of device RS485 communication unit, receives host computer instruction and completes time service, countdown, Presentation Function.
As shown in Figure 6, voice cue module adopts independent single-chip microcomputer, is connected in the bus of device RS485 communication unit, and the instruction of reception host computer is auxiliary completes voice message with speech chip, loudspeaker.
As shown in Figure 7, cabinet is provided with clock timing module, voice cue module, and fault arranges module, earth leakage protective device, each module all adopts RS485 communication modes.Cabinet adopts the communication modes of serial server, and clock display module, voice cue module, fault arrange module and share one group of RS485 communication unit; Another group RS485 communication unit is reserved.Cabinet and host computer adopt netting twine connected mode.
Fault simulation embodiment:
1) G2 leak current fault simulation
At PC control software, " G2 electric leakage " is set, select electrical leakage, relay control unit is issued in corresponding instruction by host computer, and relay control unit is received and moved corresponding relay 21K1,21K4 after instruction, make a stake resistance of G2 access, reach simulation leak current fault object.
2) other fault simulations
As simulate main line leak current fault, simulation branch line leak current fault, when simulation family on line leak current fault, analog subscriber leak current fault and analog subscriber wiring faults, as shown in Figure 7, each user can arrange live wire leakage leakage current be divided into 7 grades adjustable.Access stake resistance in each trouble spot by relay, regulate leakage current by access stake resistance size.
System can arrange main line bar leak current fault, branching pole leak current fault, family on line leak current fault, user's leak current fault and terminal block fault, each user can arrange live wire leakage leakage current be divided into 7 grades adjustable.
Each single-phase user can carry out load unbalanced adjustment, and each single-phase user corresponding 6 groups of U, V, W three-phase access point insert corresponding separate this phase of expression load access.
Every other fault simulation and setting principle and operation steps are identical, and difference is only to select different options, and this part technology contents is those skilled in the art's well-known, so go and repeat again no longer here.
Although the utility model is described as above with aforesaid embodiment, it can not be in order to limit the utility model.Those of ordinary skill under the utility model in technical field, not departing from spirit and scope of the present utility model, does a little change and modification, all in protection domain of the present utility model.Therefore protection domain of the present utility model when with claim the person of being defined be as the criterion.
Claims (9)
1. leak current fault is processed a Simulated training device, it is characterized in that, comprising:
Three grades, low-voltage distribution transformer platform district residual current protecting simulation system, is provided with some faults set-point;
Fault arranges module, comprises the MCU of relay control unit, relay group and pilot relay control module;
Described relay control unit is connected with relay group by relay control unit interface;
Also comprise the RS485 communication unit of realizing communication function;
Described MCU is connected in the bus of RS485 communication unit;
Described relay group connects fault set-point, and is connected to stake resistance.
2. leak current fault as claimed in claim 1 is processed Simulated training device, it is characterized in that, described simulation system comprises voltage sampling circuit, current sampling circuit, reactive compensation capacitor automatic control loop, simulates single-phase user, simulates phase three-wire three user and simulation three-phase and four-line user.
3. leak current fault as claimed in claim 1 is processed Simulated training device, it is characterized in that, also comprises the power supply unit to RS485 communication unit, MCU and relay control unit power supply simultaneously.
4. leak current fault as claimed in claim 1 is processed Simulated training device, it is characterized in that, described RS485 communication unit connects serial server, and serial server is connected with a host computer through netting twine again.
5. leak current fault as claimed in claim 1 is processed Simulated training device, it is characterized in that, also comprises the clock timing module in the bus that is connected to RS485 communication unit.
6. leak current fault as claimed in claim 5 is processed Simulated training device, it is characterized in that, described clock timing module comprises the single-chip microcomputer C8015F310 in the bus that is connected to RS485 communication unit and the display unit being connected with single-chip microcomputer C8015F310.
7. leak current fault as claimed in claim 1 is processed Simulated training device, it is characterized in that, also comprises the voice cue module in the bus that is connected to RS485 communication unit.
8. leak current fault as claimed in claim 7 is processed Simulated training device, it is characterized in that, described voice cue module comprises the single-chip microcomputer C8015F340 in the bus that is connected to RS485 communication unit; And the speech chip, voice power amplifier and the loudspeaker that connect successively.
9. leak current fault as claimed in claim 1 is processed Simulated training device, it is characterized in that, also comprises the some earth leakage protective devices in the bus that is connected to RS485 communication unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420115564.5U CN203825910U (en) | 2014-03-13 | 2014-03-13 | Electricity leakage fault processing simulation practical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420115564.5U CN203825910U (en) | 2014-03-13 | 2014-03-13 | Electricity leakage fault processing simulation practical device |
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| Publication Number | Publication Date |
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| CN203825910U true CN203825910U (en) | 2014-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420115564.5U Expired - Lifetime CN203825910U (en) | 2014-03-13 | 2014-03-13 | Electricity leakage fault processing simulation practical device |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128239A (en) * | 2016-06-17 | 2016-11-16 | 国网福建省电力有限公司 | A kind of rural power grids distribution actual training device and method |
| CN108597291A (en) * | 2018-05-14 | 2018-09-28 | 国家电网有限公司 | A kind of matching net wire loss simulation training system |
| CN109448516A (en) * | 2018-11-19 | 2019-03-08 | 杭州华春科技有限公司 | A kind of electric leakage investigation simulation teching device, control method and storage medium |
| CN109994013A (en) * | 2019-04-12 | 2019-07-09 | 广西电网有限责任公司桂林供电局 | Low-voltage collecting meter reading failure safe hidden troubles removing emulation training device |
-
2014
- 2014-03-13 CN CN201420115564.5U patent/CN203825910U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128239A (en) * | 2016-06-17 | 2016-11-16 | 国网福建省电力有限公司 | A kind of rural power grids distribution actual training device and method |
| CN108597291A (en) * | 2018-05-14 | 2018-09-28 | 国家电网有限公司 | A kind of matching net wire loss simulation training system |
| CN108597291B (en) * | 2018-05-14 | 2023-09-26 | 国家电网有限公司 | Distribution network line loss simulation training system |
| CN109448516A (en) * | 2018-11-19 | 2019-03-08 | 杭州华春科技有限公司 | A kind of electric leakage investigation simulation teching device, control method and storage medium |
| CN109994013A (en) * | 2019-04-12 | 2019-07-09 | 广西电网有限责任公司桂林供电局 | Low-voltage collecting meter reading failure safe hidden troubles removing emulation training device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |