CN203376404U - Intelligent-type electric field abnormity safety alarming device - Google Patents
Intelligent-type electric field abnormity safety alarming device Download PDFInfo
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- CN203376404U CN203376404U CN201320435894.8U CN201320435894U CN203376404U CN 203376404 U CN203376404 U CN 203376404U CN 201320435894 U CN201320435894 U CN 201320435894U CN 203376404 U CN203376404 U CN 203376404U
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- microprocessor
- electric field
- accumulator
- solar cell
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Abstract
The utility model relates to an intelligent-type electric field abnormity safety alarming device capable of reminding inspectors to evacuate timely after the change of the electric field. The safety alarming device is mainly used for the key parts of the power system transformer substation, the electric field abnormity early warning of the patrol channel, and the personal safety protection. The intelligent-type electric field abnormity safety alarming device is characterized in that a power supply device can be used to supply other parts with power by a voltage stabilizing device; an electromagnetic field intensity signal in a read space can be transmitted to a signal amplifier by an electromagnetic sensor group, and the signal amplifier can be used to convert the received signal into a current value, which can be identified by a microprocessor, and can be used to transmit the identified current value to the microprocessor; the microprocessor can be used to drive a buzzer or a voice device to make alarming sounds according to the condition of the electric potential in the space. The safety alarming device is disposed on the key area or the inspection routine, and therefore people, who want to enter the faulty area, can be timely reminded to avoid the dangers timely, and the simple, effective, and intelligent safety early warning protection tool can be provided for the operation, the maintenance, the test, and the protection of the power system and the maintenance personnel, and therefore the occurrence of the personal injury accidents can be eradicated or prevented.
Description
Technical field
The utility model relates to after a kind of electric field changes the safety device that can remind the tour personnel, relate in particular to the intelligent electric field exception safety warning device that a kind of personnel of prompting in time withdraw, the electric field abnormity early warning and the personal safe protection that are mainly used in the power system transformer substation key position and make an inspection tour passage.
Background technology
Electric system needs personnel the power transformation station equipment to be carried out to the work such as walkaround inspection, operation, repair and maintenance, high-potting, protection verification and metering debugging.In tour, maintenance, maintenance and process of the test, operating electrical equipment can be because a variety of causes, as: occurred by the significant troubles such as superpotential impact, system short-circuit, equipment explosion and busbar grounding, after fault, transformer station's internal fault is put potential rise peripherally, surpass step voltage and touch voltage that safety standard allows, if personnel be strayed into above-mentioned zone can be to the serious consequence such as damaging, even dead." electric power safety working regulation " (power transformation part) 2.2.4 bar according to State Grid Corporation of China's issue requires: when ground connection occurs high-tension apparatus, indoorly forbidden to approach in the 4m of trouble spot, outdoorly forbidden to approach in the 8m of trouble spot, enter above-mentioned scope personnel except wearing insulating boot, also should, when the shell of contact arrangement and framework, wear insulating glove.But trouble spot scope and abort situation need lean against the field staff soon with ear sound the judgement, also transformer station's internal electric field ANOMALOUS VARIATIONS is not sent in advance at present the Intelligent warning device of warning function, because people's experience is limited, add that factors such as can being subject to soon that light affects, ear is a visitor at a meeting and being subject to ambient noise affects and causes erroneous judgement disconnected, this can bring serious threat to the safety of personnel in transformer station, and unnecessary human casualty accident even occurs.The personnel that work in transformer station; charged equipment and circuit are a lot of on every side; in order to ensure personal safety; need to constantly know own with easily break down between position apart from the permissible value that whether is above standard; but at present; also do not have specially in preventing because equipment failure in transformer station, short circuit grounding, field intensity change the safety protection alarm device of reminding in time, as can be seen here, intelligent electric field exception safety warning device is one of a kind of protection important protective device of entering personal security in transformer station.
The utility model content
The utility model, for above-mentioned problems of the prior art, provides a kind of intelligent electric field exception safety warning device, solved transformer station's internal electric field abnormal in the prior art and changed and can not reach the problem that alarm and prompting personnel note.
For achieving the above object, the technical solution of the utility model is as follows:
Comprise supply unit, stable-pressure device, microprocessor, electromagnetic sensor group, signal amplifying apparatus and hummer or voice device; Supply unit provides power supply by stable-pressure device for other parts; The electromagnetic sensor group is delivered to signal amplifying apparatus by electromagnetic intensity signal in the space of reading, and signal amplifying apparatus sends microprocessor to after being converted to the discernible current value of microprocessor by the signal of reception is proportional; Microprocessor, according to space internal induction electromotive force situation, drives hummer or voice device to do linear caution sound with this electromotive force.
Described supply unit is solar cell and accumulator, and solar cell passes through accumulators store by the energy of collection.
The output terminal of described microprocessor connects relay, the relay normally closed contact is connected serially between solar cell and accumulator, be full of between rear shutoff accumulator and solar cell and be connected to control accumulator, voltage sampling circuit is connected with microprocessor with accumulator respectively, voltage sampling circuit detects battery tension and is low to moderate while needing charging voltage, the microprocessor pilot relay is failure to actuate, and guarantees that solar cell can fill accumulators again by the energy collected.
The fibre optic current sensor that described electromagnetic sensor group is Hall element or magneto-optic effect.
Described electromagnetic sensor group comprises three groups.
Described microprocessor is connected with host computer by wired or wireless mode.
the utility model has the advantages of as follows:
Owing to taking such scheme, in real work, in transformer station bus be short-circuited and earth fault after, before tour, maintenance, near hazardous location, test and maintenance personnel trouble spot, the intelligent electric field exception safety warning device that is fixed in advance key position or patrol route can vary in size according to the space built-in potential and send " beep-beep-" sound or audio alert, with the prompting personnel, does not approach the trouble spot close region.This device is arranged on critical area or patrol route; also can remind at any time other to want that the personnel that enter in the fault geographic coverage avoid risk in time; this utility model can be Operation of Electric Systems, maintenance, test, protection and maintainer a kind of easy, effective, intelligent safe early warning protector is provided, thereby stops or evade the generation of human casualty accident.In addition, this utility model is with light and handy profile, compact structure, and good airproof performance, rainproof, dustproof, be convenient to outdoor or make an inspection tour that the equipment interval any place is installed, debugging; After the application of solar cell and accumulator, because the device consumed power is extremely low, therefore can make device work incessantly for a long time.
The accompanying drawing explanation
Fig. 1 is that the utility model is at transformer station's installation site schematic diagram.
Fig. 2 is electrical structure schematic diagram of the present utility model.
In figure, 1-solar cell and accumulator plant, 2-stable-pressure device, 3-microprocessor, 4-electromagnetic sensor group, 5-signal amplifying apparatus, 6-hummer or voice device, 7-relay, 8-voltage sampling circuit, 9-host computer PC.
Embodiment
With reference to the accompanying drawings, in conjunction with specific embodiments the utility model is further described in detail.
Embodiment
Place of the present utility model protection signal as shown in Figure 1.As seen from Figure 1: no matter daytime or night this device can carry out perception and send " beep-beep-" sound linear with electromotive force or send other voice and note with the warning maintainer the electromagnetic field situation in its monitoring range.
During use, this device is arranged on to critical area or make an inspection tour must via line around, underground, equipment framework can be installed and make an inspection tour must via line around on the limit, passageway, connect and get final product according to wiring scheme, this device is with light and handy profile, compact structure, good airproof performance, rainproof, dustproof, be convenient to install, debug at outdoor or tour equipment interval any place; After the application of solar cell and accumulator, because the device consumed power is extremely low, therefore can make device work incessantly for a long time.
Electrical structure schematic diagram of the present utility model as shown in Figure 2.As seen from the figure: this device comprises solar cell and accumulator plant 1, stable-pressure device 2, microprocessor 3, electromagnetic sensor group 4, signal amplifying apparatus 5, hummer or voice device 6, relay 7, voltage sampling circuit 8, host computer (PC) 9; The main power source of this device is from solar cell and accumulator plant 1, the electric energy of input also needs to provide stable power supply through stable-pressure device 2 for installing each parts simultaneously, microprocessor 3 is cores of whole device, all input/output signals all will, through analysis, the processing of microprocessor 3, then just can be made corresponding action.Under microprocessor 3 is controlled, the sensor that external electromagnetic field is had to the high sensitivity reaction, as fibre optic current sensor of Hall element or magneto-optic effect etc., electromagnetic intensity signal in the space of reading is delivered to signal amplifying apparatus 5, signal amplifying apparatus 5 is converted to proportional current signal after the signal of reception is processed, microprocessor 3 can be identified, in the time of processor 3 analyzing and processing, information is passed to host computer (PC) 9.The maximal value that microprocessor 3 detects according to three groups of sensors, can orient distance fault and put nearest sensor, drive hummer or voice device 6 to do linear " beep-beep-" sound with highest frequency simultaneously, send audio alert, whether the distance of warning staff and trouble spot transfinites, if in normal range, this device is controlled hummer or voice device 6 is not sounded.The output terminal of microprocessor 3 connects relay 7, relay 7 normally closed contacts are connected serially between solar cell and accumulator, be full of between rear shutoff accumulator and solar cell and be connected to control accumulator, voltage sampling circuit is connected with microprocessor with accumulator respectively, when detecting battery tension, voltage sampling circuit 8 is low to moderate while needing charging voltage, microprocessor 3 pilot relays 7 are failure to actuate, guarantee that solar cell can fill accumulators again by the energy collected, the benefit of doing has so not only guaranteed the serviceable life of accumulator, not because of super-charge super-discharge, and when reducing its serviceable life, can make again device with extremely low power consumption, the long-term work of uninterruptedly not changing, under the control of microprocessor 3, detect the signal of each sensor relatively, so circulation.Unique design, reduced installation volume, reduced installation difficulty, reduces user's cost, more competitive on market.
The utility model is as follows according to principle:
(1) N-type semiconductor thin slice, length is L, width is S, thickness is d, on the direction perpendicular to this semiconductor film plate plane, apply the magnetic field that magnetic induction density is B, if length direction pass to electric current I c moving charge be subject to the effect of Lorentz force, positive and negative charge edge respectively moves to the conductor two ends perpendicular to magnetic field and sense of current, and forms a stable electromotive force U at the conductor two ends
h, Here it is hall electromotive force (or being referred to as Hall voltage), this phenomenon is called Hall effect.The big or small U of Hall voltage
h=R
ib/d=K
hi
cb, wherein R is hall constant; K
hproduct sensitivity (K for Hall element
h=R/d).From the Hall voltage formula: for the Hall element of a moulding, product sensitivity K
ha steady state value, U
h∝ I
cb, as long as measure U by metering circuit
hsize, at B and I
cin two parameters, known one, just can obtain another, thereby the unknown quantity of any B of being convertible into or J all can utilize Hall element to measure, the unknown quantity of any B of converting to and I product also can be measured.The measurement of electric parameter realizes according to this principle.If control electric current I
cfor constant, magnetic induction density B is directly proportional to tested electric current, and just can make Hall current sensor and survey electric current, if magnetic induction density B is constant, I
cbe directly proportional to tested voltage, can be made into voltage sensor and survey voltage, utilize Hall voltage, current sensor can survey the frequency of power factor, electric power and the alternating current of alternating current.By U
h=KI
cb is known: if I
cfor direct current, produce the electric current I of magnetic field B
oduring for interchange, U
hfor exchanging; If I
obe also direct current, output is also direct current.Work as I
cfor exchanging, I
owhile also being direct current, output and I
cthe interchange of same frequency and its amplitude and tested direct current I
osize is directly proportional, and changes measured current I
odirection, output voltage U
hpolarity changes thereupon.Therefore utilize Hall element, both can be measured DC quantity, also can be measured of ac.
(2) fibre optic current sensor utilizes the Faraday effect of magneto-optic memory technique, in optically isotropic transparent medium, externally-applied magnetic field H can make in medium the plane of polarization of the linearly polarized light propagated along magnetic direction rotate, and deflection angle can be determined by analyzer.Therefore make material with magneto-optical crystal, the fibre optic current sensor that the Faraday effect of take is principle design can more accurately be realized the measurement of 32 kA electric currents under high voltage.And this device architecture is simple, easy to use, the response time is short, its good insulation preformance especially, volume is little, cost is low, and bandwidth, and the response time is short, can, simultaneously for measuring direct current, interchange and pulse high current, therefore be expected to become the ideal transducer of measuring large electric current under high pressure.
From top analysis, draw, utilize Hall element and the fibre optic current sensor can be to high voltage, the measurement of the parameter of large electric current, utilize the Faraday effect of magneto-optic memory technique and the sensor group that Hall effect is made can be to suffering lightning impulse, system short-circuit, the electromagnetic field ANOMALOUS VARIATIONS that the faults such as equipment scaling loss and circuit breaking cause is detected, the process microprocessor is each sensor detected value size relatively, proportional magnitude of voltage that reflects each check point, the position of the localization of faults in time, and intuitively send " beep-beep-" sound or audio alert, remind personnel in transformer station to withdraw hazardous location, guarantee personal security.
Above illustrated embodiment is only used for convenience of description, but not is limited the utility model, and under the category that does not exceed the design of this thought, various Simple transformeds and modification that those skilled in the art make, all should include in the scope of claim.
Claims (6)
1. intelligent electric field exception safety warning device, is characterized in that comprising supply unit, stable-pressure device, microprocessor, electromagnetic sensor group, signal amplifying apparatus and hummer or voice device; Supply unit provides power supply by stable-pressure device for other parts; The electromagnetic sensor group is delivered to signal amplifying apparatus by electromagnetic intensity signal in the space of reading, and signal amplifying apparatus sends microprocessor to after being converted to the discernible current value of microprocessor by the signal of reception is proportional; Microprocessor, according to space internal induction electromotive force situation, drives hummer or voice device to do linear caution sound with this electromotive force.
2. intelligent electric field exception safety warning device according to claim 1, is characterized in that described supply unit is solar cell and accumulator, and solar cell passes through accumulators store by the energy of collection.
3. intelligent electric field exception safety warning device according to claim 2, the output terminal that it is characterized in that described microprocessor connects relay, the relay normally closed contact is connected serially between solar cell and accumulator, be full of between rear shutoff accumulator and solar cell and be connected to control accumulator, voltage sampling circuit is connected with microprocessor with accumulator respectively, voltage sampling circuit detects battery tension and is low to moderate while needing charging voltage, the microprocessor pilot relay is failure to actuate, and guarantees that solar cell can fill accumulators again by the energy collected.
4. intelligent electric field exception safety warning device according to claim 1, is characterized in that the fibre optic current sensor that described electromagnetic sensor group is Hall element or magneto-optic effect.
5. intelligent electric field exception safety warning device according to claim 1, is characterized in that described electromagnetic sensor group comprises three groups.
6. intelligent electric field exception safety warning device according to claim 1, is characterized in that described microprocessor is connected with host computer by wired or wireless mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320435894.8U CN203376404U (en) | 2013-07-22 | 2013-07-22 | Intelligent-type electric field abnormity safety alarming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320435894.8U CN203376404U (en) | 2013-07-22 | 2013-07-22 | Intelligent-type electric field abnormity safety alarming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203376404U true CN203376404U (en) | 2014-01-01 |
Family
ID=49838927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320435894.8U Expired - Lifetime CN203376404U (en) | 2013-07-22 | 2013-07-22 | Intelligent-type electric field abnormity safety alarming device |
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| Country | Link |
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| CN (1) | CN203376404U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344845A (en) * | 2013-07-22 | 2013-10-09 | 国家电网公司 | Intelligent electric field exceptional safety alarming device |
| CN106526260A (en) * | 2016-12-12 | 2017-03-22 | 盐城师范学院 | Power consumption abnormity patrol device for campus area |
| CN114243920A (en) * | 2021-12-20 | 2022-03-25 | 国网河南省电力公司洛阳供电公司 | Unmanned inspection method for transformer substation |
| CN117936949A (en) * | 2024-03-22 | 2024-04-26 | 深圳玖逸行新能源汽车技术有限公司 | Rapid intelligent detection maintenance system for new energy automobile battery pack |
-
2013
- 2013-07-22 CN CN201320435894.8U patent/CN203376404U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344845A (en) * | 2013-07-22 | 2013-10-09 | 国家电网公司 | Intelligent electric field exceptional safety alarming device |
| CN106526260A (en) * | 2016-12-12 | 2017-03-22 | 盐城师范学院 | Power consumption abnormity patrol device for campus area |
| CN114243920A (en) * | 2021-12-20 | 2022-03-25 | 国网河南省电力公司洛阳供电公司 | Unmanned inspection method for transformer substation |
| CN117936949A (en) * | 2024-03-22 | 2024-04-26 | 深圳玖逸行新能源汽车技术有限公司 | Rapid intelligent detection maintenance system for new energy automobile battery pack |
| CN117936949B (en) * | 2024-03-22 | 2024-06-07 | 深圳玖逸行新能源汽车技术有限公司 | Rapid intelligent detection maintenance system for new energy automobile battery pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |