CN201742086U - Electrical protective device of remote monitoring unit - Google Patents

Electrical protective device of remote monitoring unit Download PDF

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Publication number
CN201742086U
CN201742086U CN2009202637343U CN200920263734U CN201742086U CN 201742086 U CN201742086 U CN 201742086U CN 2009202637343 U CN2009202637343 U CN 2009202637343U CN 200920263734 U CN200920263734 U CN 200920263734U CN 201742086 U CN201742086 U CN 201742086U
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CN
China
Prior art keywords
protective device
terminal
protected location
audio
electric power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009202637343U
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Chinese (zh)
Inventor
周建林
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.)
GUANGDONG MIG TECHNOLOGY Inc
Original Assignee
GUANGDONG MIG TECHNOLOGY Inc
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
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Priority to CN2009202637343U priority Critical patent/CN201742086U/en
Application granted granted Critical
Publication of CN201742086U publication Critical patent/CN201742086U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an electrical protective device of a remote monitoring unit, comprising a box body and a group of electrical protective device, wherein one side of the exterior of the box body is provided with an electric power input terminal, an operating current input terminal and an audio-video signal input terminal, while the other side is provided with an electric power output terminal, an operating current output terminal and an audio-video signal output terminal, and the exterior of the box body is provided with a grounding terminal; and the electrical protective device is arranged in the box body, and the discharge end of the electrical protective device is led to the grounding terminal at the exterior of the box body. As for the electrical protective device provided in the utility model, multiple electrical protection can be obtained integrally in a single monitoring unit system; in order to facilitate the erection, integration and independent grounding, single-body integration is utilized; by the outward breakover electricity of the terminal and related internal terminal loops, an interactive auxiliary electrical protective unit is arranged; and overvoltage is discharged by independent pointing so as to conduct all-round electrical protection on the remote monitoring unit.

Description

The electrical protective device of telemonitoring unit
[technical field]
The utility model relates to a kind of electrical protective device of telemonitoring unit, and it is electrical that outstanding confession under directions is located at long-range supervision unit work, can reach the device of comprehensively electrically safeguarding at this triangular web.
[background technology]
General so-called telemonitoring unit, normality is a multicomputer, distinctly via the construction chief apart from connection, concentrate at last and monitor control unit center, provide monitor staff's single-point the area under one's jurisdiction environment is inspected or feelings money is collected.
The application of dependent surveillance equipment, environment in house, factory building, school district, post, implement closed circuit image system, search environmental images to detect, effectively frighten resistance thieves or robbers who act under cover of night action or other aspects dimension peace or environmental change video signal feelings money and collect, more regulate the traffic and vehicle flowrate counting is the path management reference value for efficient in addition, also put wire in a large number and be arranged with various number and monitor unit, the paragraph shape is installed in respectively in the road conditions supervision visual field.
Aufsichtsrat's overall monitor long remote monitoring notion apart from drawing lines or wide area so develop, and achievement is implemented among the public construction of many advanced countries for convenience.
Because the distillation of industrial technology, no matter be to monitor that video recording analysis or signal store, the specification that has been tending towards general TV programme image, adding that transmission technology adds holds, get involved with the high speed and precision software for calculation, beginning can pick out the number-plate number and transmit out digital numerical value, convenient car nationality data tracing, and also can be after length comparison garage speed according to path point, obtain single driving travel speed adopt card, because multiple convenient feelings are supported the function remote monitoring, be subjected to the unique dependence equipment of police unit acts on road, even the supervision of urban district human activity state and the reference of Wei Ancai card.
Monitor that because of above-mentioned characteristic emphatically being arranged, making equipment must be the net territory of gathering, common in the urban district especially have the electrical circuit of unsettled supervision to mount, even circuit is hidden, but owing to monitor that unit is that set up in the high-altitude and for exposing shape to the open air, system bits is equipped with very high probability and is struck by lightning, and especially is implemented on highway.
Moreover, except basic electric power video transmission line road, because remote monitoring, displacement demand for modulation monitor picture pick-up angle, then this device is equipped with and carries the electronic microscope carrier (The Cloud Terrace) that moving video camera makes the position change of light wave incidence angle, this microscope carrier is classified again two dimension and three-dimensional two kinds of job specifications, microscope carrier adopts direct current for convenient reverse operating, three~five work of demand electric wire, other has complying with of transmission signal line to ask, and original electric power supply lines, original electric power is in order to transmit benefit, and adopted alternating current.
More than electrical work and transmission; even pass on so that carrier signal is auxiliary; even also most amounts such as demand at least three group electric leads are in parallel; add to exposing outdoor or spacious position to the open air; therefore being easy to be subjected to weather variation initiation sudden strain of a muscle Lei Xunxiang hits; must be in order to keep full-time smooth monitoring, these are provided with claimed measure be important step.
The utility model is considered once again because above-mentioned electric wire majority is bound up on single supervision unit could specifically carry out remote operation; its different classes of electric wire at least also is distributed with original power line and signal line; other has the electronic instruction works electric power of making control of azimuth of manipulator; number electric wire more than aforementioned all possibilities; for the frame dress is integrated; they must put in order the coaxial parallel single cable that is of bundle; when long-range wiring just can be provided; convenient synchronous backguy is attached to middle control center; and keep simple in circuits; but very cause consubstantiality latent put avoid exposing destroyed; respectively organize when then being struck by lightning electric wire have high chance synchronously dodged thunder at the same time between point hit; so each electrical circuit, demand is protected synchronously.
Relevant reply signal, in the electric power transfer process, maintenance system avoids the technology of being damaged by being struck by lightning for it, the TaiWan, China patent is arranged No. 095209641, it provides a kind of high voltage to defend and hits protector, by a signal input connector, one intercepts electric capacity, this Shu output that intercepts electric capacity is in order to coupling and an output signal corresponding with this vision signal, its utilize intercept capacitance series in input, go out between the terminal, and utilize the framework gaseous space to form impedance and jumping electric consumption surge electric power purpose; One out connector is sent to a video processing module with this time signal.
No. the 087207315th, TaiWan, China patent, it provides a kind of shock wave absorber of RF wired transmission system, utilizes a switch module with a trigger end, in order to the ground end with the surging drawing-in system; One inductive component when surging occurring at RF wired transmission system, produces a trigger current in this trigger end, can defend and arrange and draw surge electric power.
No. the 095209596th, TaiWan, China patent, a kind of lightning arrester that is used in the video signal coaxial cable is provided, be electrically connected with an earth lead, it utilize joint directly and earth lead independently connect, utilize the lightning-arrest pipe of a gas again, the one end is electrically connected with this conduction axial region, safeguards so obtain the lightning protection of main signal line and cable.
No. the 094215302nd, TaiWan, China patent; a kind of protective device of surge absorber is provided; be provided with one first fuse; one resistor; one switching circuit; one second fuse, a surge absorber utilizes overcurrent and crystal switch to point to the protection that elements such as guiding and surging absorption constitute electric power source.
In previous design such as above-mentioned all grades and the national technical data, only be single device, the wave that acts on electric power source or video, signal is respectively gathered around protection, more in the binding circuit of telemonitoring unit, substantivity, comprehensive electrical defense mechanism is not arranged.
[summary of the invention]
The purpose of this utility model is to provide a kind of electrical protective device of telemonitoring unit, and finger is electrical to being located at long-range supervision unit work especially, can reach the device of full maintenance.
The utility model is to realize like this, a kind of electrical protective device of telemonitoring unit, finger is electrical to being located at long-range supervision unit work especially, can reach the device of full maintenance, include: electrical protective device, include a casket body, outside one side of casket body is provided with power input end, operating current input terminal and audio-visual signal input end, side is provided with power output end in addition, operating current lead-out terminal and audio-visual signal output end, and, be provided with an earth terminal in the casket external body; One group of electrical protective device is positioned at the inside of casket body; its discharge end is drawn and is received an earth terminal that is positioned at the casket external body; wherein the alternating electromotive force protected location is serially connected between power input end and power output end; Electromechanical Control electric power protection unit strings is connected between operating current input terminal and the operating current lead-out terminal; shadow audio number protected location is serially connected between audio-visual signal input end and audio-visual signal output end; and described alternating electromotive force protected location; Electromechanical Control electric power protection unit; shadow audio number protected location; be respectively equipped with to draw and put end, and with the earth terminal that concentrates at the casket external body.
Described alternating electromotive force protected location is to be serially connected with an overcurrent protective device in inside, and two overvoltage protection devices, and bypass has a multi-electrode discharge tube between two overvoltage protection devices, and discharge tube is banished end guiding earth terminal.
Described Electromechanical Control electric power protection unit is for being parallel with a discharge tube and a discharge diode, and this discharge tube is via a collection receiving end guiding earth terminal, and discharge diode is the element of metal diode discharge.
Described shadow audio number protected location is a multi-electrode discharge tube, and discharge tube is provided with a collection receiving end guiding earth terminal.
The utility model provides the supervision of especially setting up for long-range dress unit in the wilderness; for omnibearing electrical maintenance and frame are adorned convenient; and utilized a casket body; inside is provided with an electrical protective device; electrically protective device is respectively by the alternating electromotive force protected location; or Electromechanical Control electric power protection unit; and shadow audio number protected location constitutes; and outwards be provided with electric terminal; alternating electromotive force protected location wherein; Electromechanical Control electric power protection unit; shadow audio number protected location difference is the extra ground connection of conducting alone; and concentrate at the set earth terminal of casket body jointly; easy to assembly to reach, comprehensive long-range supervision unit is done comprehensive electrical maintenance, and additionally be connected with ground wire through earth terminal independently; make to reach safety dumping fast or consume and dodge the surge electric power that thunder attacked, and effectively safeguard supervision unit Environmental security of living in.
The electrical protective device of the utility model is sealed by complete the covering of casket body, and the casket body has high mechanical properties, can be to external force resistance and implosion pressure; two-wayly safeguard element safety each other, and provide to install and purge, convenient and attractive in appearance; more can be the tool conductive capability, must be communicated with surveillance main body ground connection.
[description of drawings]
Fig. 1 is for monitoring the schematic diagram that mounts of unit.
Fig. 2 is a foundation structure schematic diagram of the present utility model.
Fig. 3 is the circuit diagram of the utility model alternating electromotive force protected location.
Fig. 4 is the utility model Electromechanical Control electric power protection unit internal circuit schematic diagram.
Fig. 5 is the audio-visual signal protected location of a utility model internal circuit schematic diagram.
The component symbol explanation:
Casket body----1 electrical protective device----10 earth terminals----100
Alternating electromotive force protected location----2 power input end----21 power output ends----22
Overcurrent protective device----23 operating current input terminals----31
Operating current lead-out terminal----32 audio-visual signal input end----41
Audio-visual signal output end----42 overvoltage protection devices----24,25
Discharge tube----26,33,43 indication lamp bodies----27
Electromechanical Control electric power protection unit----3 collection receiving end--34,44 discharge diodes----35,46
Audio-visual signal protected location----4 bridge-type rectifiers----45 monitor unit---5
Electronic image pickup device--51 lumen dispensers----52 electronic microscope carriers----53
Cantilever shalving----54 electric boxs----55 electric wires----L 1, L 2
Cable----16
[embodiment]
Relevant concrete enforcement notion of the present utility model; do comprehensive electrical anti-lightning strike maintenance for considering comprehensive supervision unit to long-range dress; and assembling is convenient and effectively comprehensive discharging surging electric power; and implement an electrical protective device; this electrical protective device assembly has an earth terminal to put earth connection for independently drawing; integral body is collected by a casket body; do well out of to purge installation; relevant original electric power with effective discharging; signal; the overvoltage that exceeds the quata of the surge of moments such as Control current; and the terminal of earth terminal is drawn the discharge pressure and can be reduced in the protection level; further safeguard to monitor the residing Environmental security of unit, can exempt and banish electric power counterattack surveillance.
Detailed construction of relevant the utility model and operation principle and effect see also graphic being described as follows:
The setting of relevant telemonitoring unit 5, for provide net territory property by the external width of cloth in control center in to being distributed with most supervision units 5, it can carry out the collection of remote field image or audio frequency with the reference as monitoring, this monitors unit 5 (as shown in Figure 1), generally suspend or mount above building by a cantilever shalving 54, from top to bottom obtain the acquisition of big regional three-dimensional environmental images in the pitching mode, monitor that wherein unit 5 is provided with an electronic image pickup device 51, more be provided with a lumen dispenser 52 for the lumen at night is auxiliary, both are via an electric box 55 switching demand electric power, if again this electronic image pickup device 51 more vast visual field area, then come the flyback retrace pick-up image with the frequency range formula, and utilize an electronic microscope carrier 53 planes to carry, make the influence picked-up angle of electronic image pickup device 51 can form a fan type scanning area, so it must reach electronic control through the Electromechanical Control electric wire via the logical operation of electric box 55 inside electronic microscope carrier 53.
Electric box 55 inside are generally the circuit by set controls such as rectification or laser; it is via a cable 6 control center in long-range being attached to; 6 inside of this cable are formed with the assembly in parallel of most electric wires; because the wiring of long-range long distance; make cable 6 even comprise and monitor that unit 5 is positioned at the position in high-altitude; all there is very high probability to be struck by lightning; especially monitor that unit 5 is for being erected in the wilderness; for full-time effective imaging monitoring, so to cable 6 or the system protection that monitors unit 5 has urgent demand.
Please consult shown in Figure 2 again; relevant design of the present utility model; can do comprehensive electrical maintenance to long-range surveillance for comprehensive; and be provided with an electrical protective device 10; these electrical protective device 10 independent sets have an earth terminal 100; discharge over the ground by earth terminal 100 integral body with the additional power that will absorb or consume; earth terminal 100 is the independent ground wire that connects again; whole by 1 Bao Na of a casket body; casket body 1 forms a monomer shape, then can be beneficial to the inside that is installed in electric box 55 or the position of waterproof.
Above-mentioned electrical protective device 10 includes an alternating electromotive force protected location 2; one Electromechanical Control electric power protection unit 3; one audio-visual signal protected location 4; above-mentioned three is connected in series power input end 21 of position in casket body 1 appearance one side respectively; operating current input terminal 31; reach power output end 22 of audio-visual signal input end 41 and opposite side; operating current lead-out terminal 32; and audio-visual signal output end 42; obtain the maintenance of lightning protection; each terminal can adopt eye-splice or the interlocking mode links formation string data loop with relevant electric wire; so if be combined in electric box 55 (please cooperate shown in Figure 1); Electricity power lead-out terminal 22 can be powered to lumen dispenser 52; audio-visual signal output end 42 transmission electronic camera heads 51; stablize protected signal; operating current lead-out terminal 32; then link electronic microscope carrier 53, obtain electrical power for operation and link.
Lumen dispenser 52 wherein is that the drive circuit via electric box 55 inside agitates luminous, then the drive circuit of electric box 55 inside is that power output end 22 with alternating electromotive force protected location 2 links in advance, and operating current lead-out terminal 32 can link with the circuit that concerns of electronic microscope carrier 53; 4 video lines to electronic image pickup device 51 of shadow audio number protected location are done relation serial connection, so can obtain omnibearing electrical protection to the lumen dispenser 52 that monitors unit 5, electronic image pickup device 51, electronic microscope carrier 53 etc.
Wherein the electric power protected of alternating electromotive force protected location 2 is original electric power, and it can provide the electric power of lumen dispenser 52, electronic image pickup device 51, electronic microscope carrier 53 to require specification via step-down, so 2 loads of alternating electromotive force protected location are mainly born.
Alternating electromotive force protected location 2, Electromechanical Control electric power protection unit 3, audio-visual signal protected location 4 independently lead-out terminal are to be attached to the earth terminal 100 that is positioned at casket body 1 appearance by concurrent, and 100 of this earth terminals provide interlocking one earth connection independently to draw and put.
Implement in detail relevant for alternating electromotive force protected location 2, Electromechanical Control electric power protection unit 3, the out of the ordinary of audio-visual signal protected location 4 again; at first see also shown in Figure 3; this alternating electromotive force protected location 2 includes 23, one groups of indications of overcurrent protective device lamp body 27 and is connected in series and is connected in parallel on electric wire L with overcurrent protective device 23 1, L 2Be serially connected with overvoltage protection device 24 on the path in parallel; 25; between overvoltage protection device 24 and the overvoltage protection device 25 again bypass one discharge tube 26 is arranged; these discharge tube 26 ends connect earth terminal 100; but so utilize the overcurrent of overcurrent protective device 23 load surges; and utilize overvoltage protection device 24; 25 can react surge voltage; point to discharge tube 26 for conducting and convey to earth terminal 100 discharges; wherein discharge tube 26 it have the ability that self discharging consumes; it can produce electrochondria that jumps in the internal interval space; consume surge and cross piezoelectric forces by this electrochondria power conversion of quivering; use and obtain system protection; overcurrent protective device 23 its meeting wherein are to the overcurrent reaction, and then it can disconnect if surpass melting loss point.
The purpose that above-mentioned overcurrent protective device 23 disconnects, after being struck by lightning, overvoltage protection device 24,25 damages when causing the normality short circuit phenomenon, and overcurrent continues to pour in, for fear of electric wire L 1, L 2The electromechanical assembly security maintenance of power end is avoided the power end continuous loading, and then the Mechatronic Systems of power end can be oppositely safeguarded in the protection of overcurrent protective device 23.
In the device, no matter surge electric power is by electric wire L 1Or electric wire L 2When entering; overvoltage protection device 24 wherein or overvoltage protection device 25 all can gush the surge voltage of coming to it and react; at once a side that reduces the electricity group and make surge flow to earth terminal 100 is drawn for it and is put; obtain the maintenance of original electric power safety; bypass is parallel with an indication lamp body 27 between overcurrent protective device 23 and overvoltage protection device 24 in addition; this indication lamp body 27 is can be shinny under the normality energising; be designated as operate as normal; we must confirm that system works is normal by the luminous prompting of indication lamp body 27.
Please consult shown in Figure 4 again; the function of being prayed for Electromechanical Control electric power protection unit 3 is the loop of protection Electromechanical Control, and as the electronic microscope carrier 53 demand electric power that Fig. 1 shows, this power source is through the step-down gained from main power source; the gained power supply needs protected equally, and at electric wire L 1, L 2Between, be parallel with a discharge tube 33 and a discharge diode 35, with the discharging of reply surge, wherein discharge diode 35 is multipole, from electric wire L 1Or electric wire L 2The surge that enters all can be collected drawing of receiving end 34 to put through earth terminal 100 discharging, and set discharge diode 35 can be according to electric wire L 1, L 2Form oneself's discharging loop,, effectively protect power for operation by the dual mutual additional pin consumption of multi-electrode discharge tube 33 and discharge diode 35.
By the device that discharge tube 33 and discharge diode 35 are formed, it is useful in DC circuit, electric wire L wherein 1Or electric wire L 2Arbitrary circuit was poured in by piezoelectric forces, it can obtain drawing of appropriate direction and put consumption, discharge tube 33 wherein is provided with two input points, assemble to draw and be put into earth terminal 100 via a collection receiving end 34, it identically can two-wayly accept discharge diode 35 voltage and enter, and, utilize electric wire L in internal discharge consumption 1Mount and can accomplish perfect protection the direct current power of Electromechanical Control.
Please consult shown in Figure 5 again; this audio-visual signal protected location 4 is to transmit at signal; do clear and definite lightning protection as the transmission line of image signal or audio signal; it is parallel with one group of discharge tube 43 and one group of bridge-type rectifier 45 between signal line; wherein discharge tube 43 is all multipole mutually; inside is provided with two upstream ends; be conducting to earth terminal 100 via a collection receiving end 44; therefore the mistake piezoelectric forces that is poured in by arbitrary circuit can be via the collection receiving end 44 two-way preparations of discharge tube 43; discharge and guide earth terminal 100 into; and by the jump of discharge tube 43 volume inside generation electrochondrias; to consume piezoelectric forces; with one group of bridge-type rectifier 45; it is at two Shu discharge diodes 46 in parallel extremely again; utilize the existence of bridge-type rectifier 45; what the mistake piezoelectric forces that it can enter circuit formed a directive property is sent to discharge diode 46; and obtain the oneself by the direction action of discharge diode 46 and draw and put; therefore utilize discharge tube 43 to be high capacity; can do consumptive banishing to surge electric power; and arrange over the ground via earth terminal 100 and to draw; it can form point operation with utilizing bridge-type rectifier 45; made piezoelectric forces guiding casket body 1, and allowed casket body 1 take place to consume operation and the safety of safeguarding signal transmission line.
Each unit that above-mentioned Fig. 3~Fig. 5 constituted concentrates at casket body 1 inside of Fig. 2; do not have interference problem to each other; and distinctly assemble ground connection; summary is by earth terminal 100 discharging of passing on; can get specifically to draw and put effect; and its electric box 55 that can provide convenience and be installed in Fig. 1 of casket body 1; or but install the contiguous inside of the position shading wind and rain of unit 5 that monitors; divide other binding post to provide with utilization and connect binding; make the utility model be applied to the electrically protection in all directions of telemonitoring unit 5; have pure convenient; and add alternating electromotive force protected location 2; Electromechanical Control electric power protection unit 3; the setting of audio-visual signal protected location 4 inside; but its sensitivity response and surge voltage; and image discharging and consumption smoothly; in the position of earth terminal 100, it can be reduced within the horizontal extent of protection, has safeguarded the safety that monitors unit 5 peripheries.

Claims (4)

1. the electrical protective device of a telemonitoring unit, it is characterized in that it includes: a casket body, outside one side of casket body is provided with power input end, operating current input terminal and audio-visual signal input end, side is provided with power output end in addition, operating current lead-out terminal and audio-visual signal output end, and, be provided with an earth terminal in the casket external body; One group of protective device is positioned at the inside of casket body; include: an alternating electromotive force protected location; one Electromechanical Control electric power protection unit; one shadow audio number protected location; wherein the alternating electromotive force protected location is serially connected between power input end and power output end; Electromechanical Control electric power protection unit strings is connected between operating current input terminal and the operating current lead-out terminal; shadow audio number protected location is serially connected between audio-visual signal input end and audio-visual signal output end; and described alternating electromotive force protected location; Electromechanical Control electric power protection unit; shadow audio number protected location; be respectively equipped with to draw and put end, and with the earth terminal that concentrates at the casket external body.
2. the electrical protective device of telemonitoring unit according to claim 1; it is characterized by this alternating electromotive force protected location for be serially connected with an overcurrent protective device in inside; and two overvoltage protection device; bypass has a multi-electrode discharge tube between two overvoltage protection devices, and discharge tube is banished end guiding earth terminal.
3. the electrical protective device of telemonitoring unit according to claim 1; it is characterized by this Electromechanical Control electric power protection unit for being parallel with a discharge tube and a discharge diode; this discharge tube is via a collection receiving end guiding earth terminal, and discharge diode is the element of metal diode discharge.
4. the electrical protective device of telemonitoring unit according to claim 1, it is characterized by this shadow audio number protected location is a multi-electrode discharge tube, discharge tube is provided with a collection receiving end guiding earth terminal.
CN2009202637343U 2009-11-30 2009-11-30 Electrical protective device of remote monitoring unit Expired - Fee Related CN201742086U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202637343U CN201742086U (en) 2009-11-30 2009-11-30 Electrical protective device of remote monitoring unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202637343U CN201742086U (en) 2009-11-30 2009-11-30 Electrical protective device of remote monitoring unit

Publications (1)

Publication Number Publication Date
CN201742086U true CN201742086U (en) 2011-02-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009202637343U Expired - Fee Related CN201742086U (en) 2009-11-30 2009-11-30 Electrical protective device of remote monitoring unit

Country Status (1)

Country Link
CN (1) CN201742086U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104160572B (en) * 2012-03-01 2017-03-01 阿尔斯通技术有限公司 Control circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104160572B (en) * 2012-03-01 2017-03-01 阿尔斯通技术有限公司 Control circuit
US9954358B2 (en) 2012-03-01 2018-04-24 General Electric Technology Gmbh Control circuit

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110209

Termination date: 20161130