CN207233270U - A kind of system overload apparatus for demonstrating for experience teaching - Google Patents
A kind of system overload apparatus for demonstrating for experience teaching Download PDFInfo
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- CN207233270U CN207233270U CN201720465416.XU CN201720465416U CN207233270U CN 207233270 U CN207233270 U CN 207233270U CN 201720465416 U CN201720465416 U CN 201720465416U CN 207233270 U CN207233270 U CN 207233270U
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Abstract
The utility model provides a kind of system overload apparatus for demonstrating for experience teaching, and the operative scenario of line insulation aging and burning, the harmfulness of further instruction overload are caused especially suitable for system overload in high and low pressure electric system.The present apparatus is by simulating circuit overload phenomenon in high and low pressure electric system, make the danger in the case of student's personal understanding system running overload, form correct operation and the idea revered electric power in work, correct safety protecting method is grasped, can substantially reduce since inherently safe realizes deficiency and cause the probability of accident.
Description
Technical field
It the utility model is related to a kind of electric power body-sensing training device, and in particular to a kind of to simulate power train in teaching is applied
The teaching demonstration device for high and low pressure overload danger phenomenon of uniting.
Background technology
Overload refers to that the power of electrical equipment or conducting wire and electric current have exceeded nameplate setting, it is equipment or circuit
A kind of operating status.Conductor, electromagnetic core, dielectric can all produce heat under the action of electric current and its magnetic field, journey of generating heat
Degree can be characterized with temperature physical quantity.The protective device of electrical equipment or circuit under normal circumstances, type selecting is proper, setting valve
When correct, can overload equipment or circuit cut off from power supply, equipment and circuit will not overheat, and temperature rise, would not trigger
Fire hazard.But there is the small of electrical equipment capacity or economic voltage loss, load can increase in use, and protective device is refused
Understand, in the case that device line is chronically at overload fault state, temperature can be increased to more than about 160 degree, and insulation softens, is old
Change and accelerate, insulation or surrounding combustible material may be lighted and caught fire by the lost of life, the overtemperature formed by overload.
In Operation of Electric Systems, because electric power facility damage phenomenon occurs repeatedly caused by system overload, work people
Member causes injured or dead example commonplace due to careless manipulation or violation operation.According to《Electrical safe working order》
Delimit and power generation is actually needed, when electric industry production office worker carries out equipment operation and safeguards, must all strictly observe related rule
Fixed and points for attention, this is the important measures for ensureing office worker's personal safety.
At present, the education for the routine inspection such as various overhauls of the equipments and day-to-day operation, maintenance in power industry mainly stops
New old band, publicity, focusing study example etc. are stayed in, student can not really know from experience the danger of system overload, and accident occurs
The phenomenon of accident happens occasionally, and result of training is not too much preferable.Therefore, there is an urgent need for a kind of representation system overload harmfulness
Experience apparatus, make electric operating personnel's personal understanding running overload danger and operation, upkeep operation in in accordance with electricity
Importance as defined in power is safety-related.
The content of the invention
For overcome the deficiencies in the prior art, the utility model provides a kind of system overload for experience teaching and demonstrates
Device, the device can make student undergo to system Overload under harm to human body and equipment, so as to improve peace
Full consciousness, while the harmfulness of violation operation and the importance of correct operation method are reminded from the negative.
Technical solution is used by the utility model：A kind of system overload apparatus for demonstrating for experience teaching, bag
Include a master station, a pressure regulator, an isolating transformer, an energy supply control module, a strong current generator and a body-sensing platform；
The high power load that is mutually matched with strong current generator is equipped with the body-sensing platform and for testing and demonstrating
Wire connection terminal；One end of the wire connection terminal and the output terminal of strong current generator, the other end of wire connection terminal are born with high-power
Carry connection；
The input of the energy supply control module connects alternating current, it exports and connects pressure regulator, the pressure regulator, isolating transformer, big
Current feedback circuit passes sequentially through cable connection；The master station is electrically connected with energy supply control module, for controlling mould by power supply
Block indirection controls pressure regulator to export given voltage to body-sensing platform, is demonstrated into row conductor overload.
The body-sensing platform is sheet metal structural, and front panel has observation window, is internally provided with temperature measuring set and high-definition camera
Head, for the overload line temperature in demonstration and image transmitting to external-connection displayer to be amplified displaying.
Preferably, the wire connection terminal includes overload wire connection terminal and normal duty wire connection terminal；The overload
One end of wire connection terminal and the output terminal of strong current generator connect, and the other end is connected with high power load；The normal duty
One end of wire connection terminal and the output terminal of isolating transformer connect, and the other end is connected with high power load.
Preferably, the isolating transformer and strong current generator are arranged on inside body-sensing platform, in the body-sensing platform also
Equipped with measuring instrumentss, the output terminal connection of the measuring instrumentss and strong current generator, for measuring alternating voltage and electric current.
Preferably, the energy supply control module includes a contactor and a pressure regulation motor；The actuation of the contactor by
Master station is by communicating line traffic control, for controlling being switched on or switched off for power supply；The pressure regulation motor is stepper motor, the stepping
Motor controls pressure regulator rotational angle by accelerating gear, so as to adjust output voltage.
Preferably, further include earth leakage protective device and power protection mould between the energy supply control module and alternating current input
Block；The power source protective module is over-voltage over-current protection module, wherein overvoltage uses pressure surface resistance, overcurrent uses protective tube.
Due to the utilization of such scheme technology, the utility model has the advantage that compared with the prior art：
1st, it is simple in structure, it is readily transported and installs, experience human feeling is convenient；
2nd, it can be used for multiple times, securely and reliably, occupy little space；
3rd, high and low pressure circuit because electric power caused by overload endangers phenomenon, can pass through in accurate simulation electric system
Intuitively demonstration contrast effect makes student undergo causes the danger of burning to circuit overheat, so that awareness of safety is improved,
Remind the importance in accordance with electric power safety operational procedure and correct operation method from the negative at the same time.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model device.
Fig. 2 is the schematic diagram of the utility model device.
Wherein：1 be master station, 2 be pressure regulator, 3 be isolating transformer, 4 be earth leakage protective device, 5 be power source protective module,
6 it is energy supply control module, 7 be strong current generator, 8 be high power load, 9 be measuring instrumentss, 10 be single-phase circuit breaker, 11 is
Body-sensing platform
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
As shown in Fig. 1 Fig. 2, a kind of system overload apparatus for demonstrating for experience teaching provided by the utility model is main
Platform 1, pressure regulator 2, isolating transformer 3, earth leakage protective device 4, power source protective module 5, energy supply control module 6, high current is controlled to occur
Device 7, high power load 8, measuring instrumentss 9, single-phase circuit breaker 10, body-sensing platform 11.
Equipped with the high power load 8 being mutually matched with strong current generator 7 and for testing and drilling in the body-sensing platform 11
The wire connection terminal shown；One end of the wire connection terminal and the output terminal of strong current generator 7, the other end of wire connection terminal and big work(
8 connection of rate load；
The input of the energy supply control module 6 connects alternating current, its output connects pressure regulator 2, the pressure regulator 2, isolating transformer
3rd, strong current generator 7 passes sequentially through cable connection；The master station 1 is electrically connected with energy supply control module 6, for passing through power supply
6 indirect control pressure regulator of control module exports given voltage to body-sensing platform, is demonstrated into row conductor overload.
The master station 1 uses 22 cun of touch-control all-in-one machines, possesses network and display interface, it is total can to carry out ICP/IP protocol
Line traffic control, inside installation configuration monitoring interface, can carry out four remote control function, bist data library facility, Neng Gouji to body-sensing platform 11
Discharge each item data in record body-sensing.
The pressure regulator 2 is single-phase manifold type pressure regulator, inputs and continuously may be used for line voltage, output area for 0-240V
Adjust, since test electric current is bigger but voltage is low, capacity elects 3kW as.
The isolating transformer 3 is low capacity single-phase transformer, and input, output voltage are 220V, using floating are designed,
Increase security, while can prevent influence of the rush of current to power supply.
The earth leakage protective device 4 is located inside body-sensing platform, body-sensing platform shell reliable ground.Major control equipment power supply opens,
Close and prevent equipment leakage, maximum leakage action current is 30mA.
The power source protective module 5 is overvoltage, overcurrent protection module, can ensure equipment normal operation.Wherein overvoltage is adopted
With varistor, self-repair function can be realized；Overcurrent is using common protective tube.
The energy supply control module 6 is contactor and pressure regulation motor, and pressure regulator output voltage is adjusted by motor.Master station
Inhaled, closed to control power on disconnecting by connection control contactor；Stepper motor controls pressure regulator by reduction gearing
Rotational angle, so as to adjust output voltage.
The strong current generator 7 is the transformer that output is low-voltage, high-current, by varying secondary windings and it is primary around
Group no-load voltage ratio, can produce different output current values.
As shown in Figure 2, the high power load 8 is heat safe cement resistor, the current value ratio in overload system
Larger, it is also bigger to load the heat of generation, so using heat safe high-power cement resistor.
As shown in Figure 1, the measuring instrumentss 9 are alternating voltage, current instrument.Transient current can be detected, voltage becomes
Change and there is communication function.
As shown in Figure 1, the single-phase circuit breaker 10 switchs for normal air formula, prevents short-circuit device from damaging.
As shown in attached drawing 1 and attached drawing 2, the body-sensing platform 11 is sheet metal structural, and housing is handled using silver powder metallic paint, before
Plate has observation window, while also has electric current, voltmeter and indicating lamp component, inside installation temperature measuring set and high-definition camera
Head, the overload line temperature in demonstration and image transmitting can be amplified show to display.
The utility model apparatus for demonstrating includes two regions：Operating space, show area.Operating area is mainly master station 1, its
Complete the control to showing device and data, image display function.Two regions are isolated by hard fence, prevent from grasping by mistake
Electrically injured caused by work or violation operation.When carrying out teaching demonstration training, operating personnel are located at operating area, open dress
Main power source is put, it is whether normal by the monitoring circuit electric parameter of measuring instrumentss 9, then pass through energy supply control module 6 and adjust pressure regulation
2 output voltage of device, starts corresponding display area single-phase circuit breaker 10, and power supply indicator is lighted, and completes system electrification work at this time.
Due to having arranged the conducting wire tested between calibrating terminal properly in advance, can be adjusted after system electrification by master station 1 negative
Lotus output current, contrasts the line conductor of normal duty, it can be found that overload conducting wire starts combustion of smoldering after certain time
Burn, so that the electrical hazard of displaying in such cases intuitively, vivid., can be with by the smog, spark and temperature survey of generation
Make student undergo to system Overload under harm to human body and equipment, so as to improve awareness of safety, while from anti-
Remind the harmfulness of violation operation and the importance of correct operation method in face.
Using above-mentioned training device, circuit overload phenomenon in high and low pressure electric system is simulated, makes student's personal understanding system
Danger in the case of system running overload, forms correct operation and the idea revered electric power in work, grasps correctly peace
Full protection method, can substantially reduce since inherently safe realizes deficiency and cause the probability of accident.
The part not illustrated in specification is the prior art or common knowledge.It is new that the present embodiment is merely to illustrate the practicality
Type, rather than limitation the scope of the utility model, the equivalent replacement that those skilled in the art are done for the utility model etc.
Modification is deemed to fall within the utility model right claim institute protection domain.
Claims (9)
- A kind of 1. system overload apparatus for demonstrating for experience teaching, it is characterised in that：Including a master station (1), a pressure regulation Device (2), an isolating transformer (3), an energy supply control module (6), a strong current generator (7) and a body-sensing platform (11)；Be equipped with the body-sensing platform (11) high power load (8) that is mutually matched with strong current generator (7) and for test with The wire connection terminal of demonstration；One end of the wire connection terminal and the output terminal of strong current generator (7), the other end and high power load (8) connect；The input of the energy supply control module (6) connects alternating current, it, which is exported, connects pressure regulator (2), the pressure regulator (2), isolation transformation Device (3), strong current generator (7) pass sequentially through cable connection；The master station (1) is electrically connected with energy supply control module (6), uses In exporting given voltage to body-sensing platform by energy supply control module (6) indirect control pressure regulator, demonstrated into row conductor overload.
- A kind of 2. system overload apparatus for demonstrating for experience teaching according to claim 1, it is characterised in that：It is described Wire connection terminal includes overload wire connection terminal and normal duty wire connection terminal；One end of the overload wire connection terminal and high current The output terminal connection of generator (7), the other end are connected with high power load (8)；One end of the normal duty wire connection terminal with The output terminal connection of isolating transformer (3), the other end are connected with high power load (8).
- A kind of 3. system overload apparatus for demonstrating for experience teaching according to claim 2, it is characterised in that：It is described Body-sensing platform (11) is sheet metal structural, and front panel has observation window, is internally provided with temperature measuring set and high-definition camera, for inciting somebody to action Overload line temperature and image transmitting to external-connection displayer in demonstration are amplified displaying.
- A kind of 4. system overload apparatus for demonstrating for experience teaching according to claim 3, it is characterised in that：It is described Master station (1) uses 22 cun of touch-control all-in-one machines, possesses network interface and display interface, for carrying out ICP/IP protocol bus marco And the monitoring display of configuration is installed inside body-sensing platform (11)；The master station (1) further includes database storage module, for remembering Discharge each item data in record apparatus for demonstrating.
- A kind of 5. system overload apparatus for demonstrating for experience teaching according to claim 4, it is characterised in that：It is described It is internal that isolating transformer (3) and strong current generator (7) are arranged on body-sensing platform (11)；Measurement is additionally provided with the body-sensing platform (11) Instrument (9), the measuring instrumentss (9) are connected with the output terminal of strong current generator (7), for measuring alternating voltage and electric current.
- A kind of 6. system overload apparatus for demonstrating for experience teaching according to claim 5, it is characterised in that：It is described Energy supply control module (6) includes a contactor and a pressure regulation motor；The actuation of the contactor is by master station by communicating line traffic control System, for controlling being switched on or switched off for power supply；The pressure regulation motor is stepper motor, and the stepper motor passes through accelerating gear control Pressure regulator rotational angle processed, so as to adjust output voltage.
- A kind of 7. system overload apparatus for demonstrating for experience teaching according to claim 6, it is characterised in that：It is described High power load (8) uses cement resistor.
- A kind of 8. system overload apparatus for demonstrating for experience teaching according to claim 7, it is characterised in that：It is described Earth leakage protective device (4) and power source protective module (5) are further included between energy supply control module (6) and alternating current input；The power supply is protected It is over-voltage over-current protection module to protect module (5), wherein overvoltage uses pressure surface resistance, overcurrent uses protective tube.
- A kind of 9. system overload apparatus for demonstrating for experience teaching according to claim 8, it is characterised in that：It is described The single-phase circuit breaker (10) for preventing short circuit is additionally provided with body-sensing platform (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720465416.XU CN207233270U (en) | 2017-04-28 | 2017-04-28 | A kind of system overload apparatus for demonstrating for experience teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720465416.XU CN207233270U (en) | 2017-04-28 | 2017-04-28 | A kind of system overload apparatus for demonstrating for experience teaching |
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| Publication Number | Publication Date |
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| CN207233270U true CN207233270U (en) | 2018-04-13 |
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| CN201720465416.XU Active CN207233270U (en) | 2017-04-28 | 2017-04-28 | A kind of system overload apparatus for demonstrating for experience teaching |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111554160A (en) * | 2020-06-09 | 2020-08-18 | 清华大学合肥公共安全研究院 | Electrical fire demonstration box and demonstration method thereof |
-
2017
- 2017-04-28 CN CN201720465416.XU patent/CN207233270U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111554160A (en) * | 2020-06-09 | 2020-08-18 | 清华大学合肥公共安全研究院 | Electrical fire demonstration box and demonstration method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191105 Address after: 550002 No. 17 Binhe Road, Nanming District, Guizhou, Guiyang Patentee after: GUIZHOU POWER GRID CO., LTD. Address before: 550002, No. 25 East Tan Road, Guiyang Road, Nanming District, Guizhou, China Patentee before: TRAINING AND EVALUATION CENTER, GUIZHOU POWER GRID CO., LTD. |
|
| TR01 | Transfer of patent right |