CN204030726U - Substation safety checkout gear and system - Google Patents

Substation safety checkout gear and system Download PDF

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Publication number
CN204030726U
CN204030726U CN201420442301.5U CN201420442301U CN204030726U CN 204030726 U CN204030726 U CN 204030726U CN 201420442301 U CN201420442301 U CN 201420442301U CN 204030726 U CN204030726 U CN 204030726U
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China
Prior art keywords
control
driver part
mentioned
checkout gear
substation safety
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CN201420442301.5U
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高明亮
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State Grid Corp of China SGCC
State Grid Beijing Electric Power Co Ltd
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State Grid Corp of China SGCC
State Grid Beijing Electric Power Co Ltd
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Priority to CN201420442301.5U priority Critical patent/CN204030726U/en
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    • Y02E60/723
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16Electric power substations

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Abstract

The utility model discloses a kind of substation safety checkout gear and system, wherein, this device comprises: temperature acquisition parts, are connected with control assembly, is set to the temperature gathering one or more control appliance in transformer station; And/or image acquisition component, is connected with control assembly, be set to the state gathered shown by the status indicator lamp of one or more control appliance; Control assembly, is connected with driver part, and be set to control driver part and drive substation safety checkout gear to move according to desired trajectory, to realize by temperature acquisition parts, and/or image acquisition component carries out detection of dynamic to one or more control appliance; Driver part, is set to drive unit and moves according to desired trajectory.The utility model solves due to the lower technical problem of cycle longer the caused safety detection efficiency of prior art manual patrol, reaches the efficiency improving substation safety and detect, thus improves the technique effect of the fail safe of transformer station.

Description

Substation safety checkout gear and system
Technical field
The utility model relates to electric field, in particular to a kind of substation safety checkout gear and system.
Background technology
At present, the mode that the safety detection work of transformer station is taked usually needs attendant in person to arrive each substation field to carry out patrol and detection.But, because the quantity of transformer station gets more and more, and distance is apart also more and more far away, only relies on attendant to carry out patrol and detection one by one to each transformer station, just need a large amount of manpower and materials, the cost of safety detection will inevitably be made like this to increase.
In addition, attendant just makes an inspection tour once at interval of a period of time according to visit program, the tour cycle is longer, and this period of free time, if device fails, or send some alarm signal, attendant cannot Timeliness coverage safeguarding, so just there is very large potential safety hazard, likely cause very large security incident, and then affect the safe operation of electrical network.
For above-mentioned problem, at present effective solution is not yet proposed.
Utility model content
The utility model embodiment provides a kind of substation safety checkout gear and system, at least to solve due to the lower technical problem of cycle longer the caused safety detection efficiency of prior art manual patrol.
According to an aspect of the utility model embodiment, provide a kind of substation safety checkout gear, comprising: temperature acquisition parts, are connected with control assembly, be set to the temperature gathering one or more control appliance in transformer station; And/or image acquisition component, is connected with above-mentioned control assembly, be set to the state shown by status indicator lamp gathering above-mentioned one or more control appliance; Control assembly, be connected with driver part, be set to control above-mentioned driver part and drive above-mentioned substation safety checkout gear to move according to desired trajectory, to realize by said temperature acquisition component, and/or above-mentioned image acquisition component carries out detection of dynamic to above-mentioned one or more control appliance; Above-mentioned driver part, is set to drive said apparatus to move according to above-mentioned desired trajectory.
Alternatively, said apparatus also comprises: communication component, is connected with said temperature acquisition component, above-mentioned image acquisition component and above-mentioned control assembly, is set to carry out data interaction with far-end control centre.
Alternatively, above-mentioned communication component comprises: transmitting element, be connected with said temperature acquisition component and above-mentioned image acquisition component, the temperature of above-mentioned one or more control appliance of said temperature acquisition component collection is set to report said distal ends control centre, and/or, the state reporting shown by the status indicator lamp of above-mentioned one or more control appliance that above-mentioned image acquisition component is gathered; Receiving element, is connected with above-mentioned control assembly, is set to receive the control command for controlling said apparatus.
Alternatively, above-mentioned control assembly comprises: control module, is connected with above-mentioned driver part, is set to the start and stop controlling above-mentioned driver part; Signal detection module, is connected with above-mentioned control module, is set to detect the signal of telecommunication charged to said apparatus, if above-said current signal detected, then notifies that above-mentioned control module controls above-mentioned driver part out of service, mobile to make said apparatus stop; Electrical measurement module, be connected with above-mentioned control module, be set to measure the electricity in said apparatus, if the above-mentioned electricity in said apparatus is greater than predetermined threshold, then notify that above-mentioned control module controls above-mentioned driver part and brings into operation, move to make said apparatus.
Alternatively, above-mentioned signal detection module is induction type signal detection module.
Alternatively, above-mentioned driver part comprises: motor, is connected with above-mentioned control module, is set to drive said apparatus to move or control said apparatus stop mobile.
Alternatively, above-mentioned control appliance at least comprises the switch cubicle in above-mentioned transformer station.
According to the another aspect of the utility model embodiment, additionally provide a kind of substation safety detection system, comprising: substation safety checkout gear described above and planned orbit.
Alternatively, the trade shape of above-mentioned planned orbit is position according to above-mentioned one or more control appliance and the closed figures set.
Alternatively, said apparatus moved once according to above-mentioned planned orbit every the scheduled time.
In the utility model embodiment, by the temperature detection part in the substation safety checkout gear that arranges in transformer station, and/or, image acquisition component, realize the detection to the one or more control appliances in transformer station, further, control driver part by control assembly and drive said apparatus to move according to desired trajectory, make said apparatus can carry out dynamically safety and patrol to the one or more control appliances in transformer station and detect.Thus achieve the technique effect improved the safety detection efficiency of transformer station, and then solve due to the lower technical problem of cycle longer the caused safety detection efficiency of prior art manual patrol.
Further, by signalization detection module and electrical measurement module, make above-mentioned substation safety checkout gear can be controlled movement or the stopping of said apparatus further by induction electricity, achieve the Automated condtrol to substation safety patrol and detection.
Further, comprise in the substation safety detection system of above-mentioned substation safety checkout gear, also be provided with the closed planned orbit arranged according to above-mentioned one or more control appliance, to make said apparatus can move according to the track of above-mentioned planned orbit, thus realize the automation of safety and patrol detection completely.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram of a kind of optional substation safety checkout gear according to the utility model embodiment;
Fig. 2 is the schematic diagram according to the optional substation safety checkout gear of the another kind of the utility model embodiment;
Fig. 3 is the schematic diagram of another the optional substation safety checkout gear according to the utility model embodiment;
Fig. 4 is the schematic diagram of another the optional substation safety checkout gear according to the utility model embodiment; And
Fig. 5 is the schematic diagram of a kind of optional substation safety detection system according to the utility model embodiment.
Embodiment
Hereinafter also describe the utility model in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Embodiment 1
According to the utility model embodiment, provide a kind of substation safety checkout gear, as shown in Figure 1, this device comprises:
1) temperature acquisition parts 102, are connected with control assembly 106, are set to the temperature gathering one or more control appliance in transformer station; And/or image acquisition component 104, is connected with control assembly 106, be set to the state gathered shown by the status indicator lamp of one or more control appliance;
2) control assembly 106, be connected with driver part 108, be set to control driver part and drive substation safety checkout gear to move according to desired trajectory, to realize by temperature acquisition parts, and/or image acquisition component carries out detection of dynamic to one or more control appliance;
3) driver part 108, is set to drive said apparatus to move according to desired trajectory.
Alternatively, in the present embodiment, above-mentioned substation safety checkout gear can be applied in the process of the daily safety and patrol detection of transformer station, such as, attendant carries out safety detection in the scheduled time without the need in person arriving each transformer station again, only need be obtained in above-mentioned transformer station by above-mentioned substation safety checkout gear is the working condition of one or more control appliance, and the cycle of patrol and detection can also be shortened by above-mentioned substation safety checkout gear, thus realize the efficiency improving substation safety detection, further, avoid the security incident that may occur in tour gap, ensure that the fail safe of transformer station.Above-mentioned citing is a kind of example, and the present embodiment does not do any restriction to this.
Alternatively, in the present embodiment, the control appliance in above-mentioned transformer station can be, but not limited to as the switch cubicle in transformer station, and wherein, the switch cubicle in transformer station can be, but not limited to as multiple.
Alternatively, in the present embodiment, said temperature acquisition component can be, but not limited to as infrared detection equipment.Such as, by the temperature of circuit breaker in above-mentioned infrared detection equipment Inspection switch cabinet of converting station, judge whether it exceedes predetermined threshold, if exceed predetermined threshold, security maintenance is carried out, to avoid occurring serious security incident in then need the to arrive in the very nick of time scene of this transformer station.Wherein, above-mentioned circuit breaker refer to the electric current that can close, carry and cut-off under normal loop condition and can close, the switching device of carrying and the electric current under cut-offfing abnormal loop condition in official hour.When short circuit, the switch of circuit breaker is by instantaneous tripping, and when circuit overloads, the ER effect in circuit is large, and the caloric value of circuit breaker also can be aggravated thereupon.Thus, when above-mentioned substation safety checkout gear detects the temperature anomaly of the circuit breaker in switch cubicle, then need to carry out security maintenance to this transformer station in time.
Alternatively, in the present embodiment, above-mentioned image acquisition component can be, but not limited to as camera, and wherein, the status indicator lamp on above-mentioned control appliance can include but not limited to as alarm lamp, working station indicator.Such as, by the image of above-mentioned camera collection transformer station breaker in middle cashier's office in a shop alarm lamp, if above-mentioned alarm lamp brightens, then represent and need attendant to carry out security maintenance to this transformer station.Or, in the out of order situation of above-mentioned alarm lamp, then gather the image that other are used to indicate the working station indicator of transformer station's status, judge that whether the operating state of this transformer station is abnormal, if display is abnormal, attendant will carry out security maintenance to this transformer station equally.
Alternatively, in the present embodiment, above-mentioned substation safety checkout gear can control driver part 108 by control assembly 106 and drives this device to move according to desired trajectory.Such as, as shown in Figure 2, two switch cubicles 202 are set in transformer station, the position of above-mentioned switch cubicle 202 as shown in Figure 2, and desired trajectory can be set to ellipse as shown in Figure 2, then control assembly 106 can drive above-mentioned driver part 108 to move according to the desired trajectory of above-mentioned ellipse, can collect work state information on the switch cubicle of both sides to make said temperature acquisition component 102 and/or image acquisition component 104.Wherein, the direction shown in Fig. 2 is only a kind of example, and the present embodiment does not do any restriction to this.
Alternatively, in the present embodiment, above-mentioned control assembly 106 can, at interval of a period of time (such as, 1 hour), just drive above-mentioned driver part 108 once to move, and to make sense cycle shorten, thus improves the efficiency of safety detection.
By the embodiment that the application provides, above-mentioned driver part is driven to move according to desired trajectory by the control assembly in substation safety checkout gear, to realize by said temperature acquisition component, and/or, image acquisition component gathers the work state information of one or more control appliance in transformer station, and then overcome in prior art and detect the security incident that may cause by manual patrol, shorten the cycle that safety and patrol detect, improve the efficiency of substation safety patrol and detection.
As the optional scheme of one, as shown in Figure 3, said apparatus also comprises:
1) communication component 302, is connected with temperature acquisition parts 102, image acquisition component 104 and control assembly 106, is set to carry out data interaction with far-end control centre.
Alternatively, in the present embodiment, above-mentioned substation safety checkout gear can also realize telecommunication with far-end control centre, wherein, the above-mentioned communication component 302 for telecommunication can be, but not limited to comprise following at least one communication mode: wire communication, radio communication, thus the information real-time Transmission realizing above-mentioned substation safety checkout gear to gather is to far-end control centre, with the work state information making attendant can know substation field in real time.
By the embodiment that the application provides, mutual by the real-time teledata of communication component and far-end control centre, thus make attendant can obtain work state information in transformer station in time, and then the security incident that may occur is safeguarded in time, ensure the safe operation of transformer station.
As the optional scheme of one, above-mentioned communication component 302 comprises:
1) transmitting element, be connected with temperature acquisition parts and image acquisition component, the temperature of one or more control appliances of temperature acquisition parts collection is set to report, and/or the state reporting shown by the status indicator lamp of one or more control appliances image acquisition component gathered is to far-end control centre;
2) receiving element, is connected with control assembly, is set to receive the control command for controlling device.
Alternatively, in the present embodiment, by above-mentioned transmitting element by temperature acquisition parts 102, and/or, the work state information of transformer station is reported far-end control centre by image acquisition component 104, and Maintenance free personnel arrive in the scene of each transformer station, respectively scene is carried out to each transformer station and make an inspection tour, achieve the remote monitoring to work of transformer substation state.
Such as, know in the information that attendant receives in far-end control centre that the alarm lamp on the switch cubicle a in transformer station A is shinny, display device is abnormal, then attendant will arrive in the very nick of time transformer station A location, carry out Emergency Maintenance to the equipment in transformer station A.
Alternatively, in the present embodiment, what above-mentioned receiving element was received by far-end control centre can include but not limited to following at least one information in the control command of this substation safety checkout gear: to information gathering mode, the selected desired trajectory of sense cycle, temperature acquisition parts and/or image acquisition component that control appliance detects.
Such as, suppose that control command that far-end control centre sends is used to indicate and the sense cycle of this checkout gear was adjusted to 2 hours by 1 hour, then receiving element is after receiving above-mentioned control command, control assembly will be notified, to make the drived control of control assembly change to driver part, realize the adjustment of sense cycle.
By the embodiment that the application provides, the teledata being realized this substation safety checkout gear and far-end control centre by transmitting element and receiving element is mutual, achieves the Long-distance Control of attendant to transformer station, improves the efficiency of safety detection.
As the optional scheme of one, as shown in Figure 4, above-mentioned control assembly 106 comprises:
1) control module 402, is connected with driver part 108, is set to the start and stop controlling driver part;
2) signal detection module 404, is connected with control module 402, is set to detect the signal of telecommunication charged to device, if the signal of telecommunication detected, then notifies that control module 402 controls driver part 108 out of service, mobile to make said apparatus stop;
3) electrical measurement module 406, is connected with control module 402, is set to measure the electricity in device, if the electricity in device is greater than predetermined threshold, then notifies that control module 402 controls driver part 108 and brings into operation, moves to make said apparatus.
Alternatively, in the present embodiment, above-mentioned signal detection module 404 is induction type signal detection module, and such as, above-mentioned induction type signal detection module can be an induction areas, and above-mentioned just a kind of example, the present embodiment does not do any restriction to this.That is, in the present embodiment, above-mentioned substation safety checkout gear directly can carry out automatic charging by induction type signal detection module after the signal of telecommunication of charging being detected.Alternatively, in the present embodiment, above-mentioned induction type signal detection module also can be referred to as non-contact type signal detection module.Alternatively, in the present embodiment, above-said current signal can be, but not limited to as electromagnetic wave signal.
Alternatively, in the present embodiment, after above-mentioned signal detection module detects the signal of telecommunication, before said apparatus is charged, whether the dump energy that can be, but not limited to judge in said apparatus meets makes said apparatus move electricity requirement once, if meet, can not charge, if do not meet, then need to charge to said apparatus.
Alternatively, in the present embodiment, can also but be not limited to often complete once mobile after, all a charging operations is performed to said apparatus, thus ensures in said apparatus, have sufficient electricity normally to run.
Such as, suppose that above-mentioned induction type signal detection module is contact electromagnetic induction zone, after this induction zone detects corresponding electromagnetic wave signal, notice control module 402 is controlled driver part 108 and brings into operation, move according to desired trajectory to drive this substation safety checkout gear.
Alternatively, in the present embodiment, above-mentioned electrical measurement module 406 can be, but not limited to detect the electricity in above-mentioned substation safety checkout gear, if control module 402 judges that the electricity in this device is greater than predetermined threshold, then will to control driver part 108 out of service for control module 402, and then control this device and stop mobile.Alternatively, in the present embodiment, above-mentioned predetermined threshold can be, but not limited to equal to make said apparatus to move electricity once.
Alternatively, in the present embodiment, when charging to above-mentioned substation safety checkout gear, if detect, charge capacity has reached above-mentioned predetermined threshold, also can notify that above-mentioned control module 402 controls to stop charging, to realize the auto-breaking to this device.
By the embodiment that the application provides, realized the automatic charging of substation safety checkout gear and the control of auto-breaking by above-mentioned signal detection module and above-mentioned electrical measurement module, and then controlled the start and stop of driver part by control module according to the result of above-mentioned detection, to realize the movement or the stopping that controlling said apparatus, and then make above-mentioned detection device can realize patrol and detection to the one or more control appliances in transformer station.
As the optional scheme of one, above-mentioned driver part 108 comprises:
1) motor, is connected with control module 402, is set to drive unit and moves or control device stopping movement.
By the embodiment that the application provides, the start and stop of motor are controlled by control module, and then realize the movement or the stopping that controlling above-mentioned substation safety checkout gear, detect with the safety and patrol making above-mentioned detection device automatically can realize transformer station, thus improve the efficiency of detection, ensure that the fail safe of transformer station.
The utility model provides a kind of preferred embodiment to make an explanation to the utility model further, but it should be noted that the preferred embodiment is just in order to better describe the utility model, does not form and limits improperly the utility model.
Embodiment 2
According to the utility model embodiment, additionally provide a kind of substation safety detection system, as shown in Figure 5, this system comprises:
1) substation safety checkout gear 502;
2) planned orbit 504.
Alternatively, in the present embodiment, above-mentioned substation safety detection system can be, but not limited to be integrated in an intelligent robot, alternatively, in the present embodiment, above-mentioned substation safety checkout gear 502 is connected with planned orbit 504 by link, wherein, above-mentioned link can include but not limited to following one of at least: gear, pulley.
By the embodiment that the application provides, move at planned orbit by controlling substation safety checkout gear, make said apparatus can carry out safety and patrol detection to the one or more control appliances in transformer station, thus the automatic tour achieved transformer station, improve the efficiency of detection, and then ensure that the safe operation of transformer station.
As the optional scheme of one, the trade shape of planned orbit is position according to one or more control appliance and the closed figures set.
Alternatively, in the present embodiment, the closed figure every the scheduled time according to planned orbit moves once by above-mentioned substation safety checkout gear.
Such as, shown in composition graphs 2, above-mentioned planned orbit can be, but not limited to comprise any closed annular or polygon, one or more control appliances in transformer station can be detected to make above-mentioned substation safety checkout gear.Wherein, the position according to one or more control appliances that will detect arranges by the shape of above-mentioned planned orbit.
By the embodiment that the application provides, by arranging planned orbit for substation safety checkout gear, can move according to desired trajectory to make said apparatus, thus avoid the low problem of the detection efficiency that in person caused to each substation field patrol and detection by attendant, furthermore achieved that and the automation that substation safety is maked an inspection tour improve the efficiency of safety detection.
The utility model provides a kind of preferred embodiment to make an explanation to the utility model further, but it should be noted that the preferred embodiment is just in order to better describe the utility model, does not form and limits improperly the utility model.
From above description, can find out, by the temperature detection part in the substation safety checkout gear that arranges in transformer station, and/or, image acquisition component, realizes the detection to the one or more control appliances in transformer station, further, controlling driver part by control assembly drives said apparatus to move according to desired trajectory, makes said apparatus can carry out dynamically safety and patrol to the one or more control appliances in transformer station and detects.Thus achieve the technique effect improved the safety detection efficiency of transformer station, and then solve due to the lower technical problem of cycle longer the caused safety detection efficiency of prior art manual patrol.
Further, by signalization detection module and electrical measurement module, make above-mentioned substation safety checkout gear can be controlled movement or the stopping of said apparatus further by induction electricity, achieve the Automated condtrol to substation safety patrol and detection.
Further, comprise in the substation safety detection system of above-mentioned substation safety checkout gear, also be provided with the closed planned orbit arranged according to above-mentioned one or more control appliance, to make said apparatus can move according to the track of above-mentioned planned orbit, thus realize the automation of safety and patrol detection completely.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.

Claims (10)

1. a substation safety checkout gear, is characterized in that, comprising:
Temperature acquisition parts, are connected with control assembly, are set to the temperature gathering one or more control appliance in transformer station; And/or image acquisition component, is connected with described control assembly, be set to the state shown by status indicator lamp gathering described one or more control appliance;
Control assembly, be connected with driver part, be set to control described driver part and drive described substation safety checkout gear to move according to desired trajectory, to realize by described temperature acquisition parts, and/or described image acquisition component carries out detection of dynamic to described one or more control appliance;
Described driver part, is set to drive described device to move according to described desired trajectory.
2. device according to claim 1, is characterized in that, also comprises:
Communication component, is connected with described temperature acquisition parts, described image acquisition component and described control assembly, is set to carry out data interaction with far-end control centre.
3. device according to claim 2, is characterized in that, described communication component comprises:
Transmitting element, be connected with described temperature acquisition parts and described image acquisition component, the temperature of described one or more control appliance of described temperature acquisition parts collection is set to report, and/or the state reporting shown by the status indicator lamp of the described one or more control appliance described image acquisition component gathered gives described far-end control centre;
Receiving element, is connected with described control assembly, is set to receive the control command for controlling described device.
4. device according to claim 1, is characterized in that, described control assembly comprises:
Control module, is connected with described driver part, is set to the start and stop controlling described driver part;
Signal detection module, is connected with described control module, is set to detect the signal of telecommunication charged to described device, if the described signal of telecommunication detected, then notifies that described control module controls described driver part out of service, mobile to make described device stop;
Electrical measurement module, be connected with described control module, be set to measure the electricity in described device, if the described electricity in described device is greater than predetermined threshold, then notify that described control module controls described driver part and brings into operation, move to make described device.
5. according to the device described in claim 4, it is characterized in that, described signal detection module is induction type signal detection module.
6. the device according to any one of claim 1-5, is characterized in that, described driver part comprises:
Motor, is connected with described control module, is set to drive described device to move or control described device stop mobile.
7. the device according to any one of claim 1-5, is characterized in that, described control appliance at least comprises the switch cubicle in described transformer station.
8. a substation safety detection system, is characterized in that, comprising: the substation safety checkout gear according to any one of claim 1 to 7 and planned orbit.
9. system according to claim 8, is characterized in that, the trade shape of described planned orbit is position according to described one or more control appliance and the closed figures set.
10. system according to claim 9, is characterized in that, described device moved once according to described planned orbit every the scheduled time.
CN201420442301.5U 2014-08-06 2014-08-06 Substation safety checkout gear and system Active CN204030726U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106651840A (en) * 2016-11-25 2017-05-10 国网北京市电力公司 Electrical device detection system
CN107870010A (en) * 2017-11-06 2018-04-03 国家电网公司 The detection device and liftable transformer inspection instrument of transformer
CN110795307A (en) * 2019-10-18 2020-02-14 国网浙江宁波市奉化区供电有限公司 Component state monitoring method of switch cabinet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106651840A (en) * 2016-11-25 2017-05-10 国网北京市电力公司 Electrical device detection system
CN107870010A (en) * 2017-11-06 2018-04-03 国家电网公司 The detection device and liftable transformer inspection instrument of transformer
CN110795307A (en) * 2019-10-18 2020-02-14 国网浙江宁波市奉化区供电有限公司 Component state monitoring method of switch cabinet

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