CN103378652B - Intelligent control method of electrified operation mechanism of high-voltage switch - Google Patents
Intelligent control method of electrified operation mechanism of high-voltage switch Download PDFInfo
- Publication number
- CN103378652B CN103378652B CN201210120406.4A CN201210120406A CN103378652B CN 103378652 B CN103378652 B CN 103378652B CN 201210120406 A CN201210120406 A CN 201210120406A CN 103378652 B CN103378652 B CN 103378652B
- Authority
- CN
- China
- Prior art keywords
- motor
- switch
- contact point
- point signal
- operating mechanism
- 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.)
- Active
Links
Abstract
The invention relates to an intelligent control method of an electrified operation mechanism of a high-voltage switch. The method includes the steps of importing configuration files and historical data of a motor to form a stepping curve in the motor transmission and energy storage process in a fitting mode, monitoring the real-time process amount of the motor and the dynamic process of switching on and switching off of the switch, performing analysis in combination with the stepping curve of the transmission motor to obtain a soft contact signal of the position of the switch and a soft contact signal of energy storage of a spring, if the switch operation is not in place and a hard contact signal of the switch is consistent with the soft contact signal, calculating and outputting the position of a movable contact of the switch and the triggering angle of a rectification power supply of the transmission motor, and returning to the step of monitoring the real-time process amount of the motor and the dynamic process of the operation mechanism. While self-diagnosis is achieved, speed changing control is performed on the motor, the phenomena such as coil burnt damage caused by frustration of an operation process or being not in place of the opening state are avoided, and the motor is protected to the maximum. The intelligent operation of the operation mechanism can be achieved without changing the original structure, and the method is easy and convenient to use and high in performance cost ratio.
Description
Technical field
The present invention relates to electric power system high-voltage switch control technology, specifically the intelligent control method of the electrified operating mechanism of a kind of high-voltage switch gear.
Background technology
High voltage switchgear refers to the indoor and outdoor AC-DC switch equipment applied in electric power system, for high-voltage fence (comprising the users such as power plant, transformer station, electric line and industrial and mining enterprises), both can according to operation of power networks needs, high-voltage switch gear is by a part of power equipment or circuit input or out of service, also when power equipment or line failure, faulty component can be excised fast from electrical network, thus ensure the safety of the normal operation of no failure part in electrical network and equipment, operating maintenance personnel.Therefore, high voltage switchgear is very important equipment for power transmission and distribution, its safety, reliably run to electric power system safe, effectively run tool be of great significance.And high voltage switchgear is by the difference of its function and efficacy, can be divided into:
(1) switch element and the unit equipment centered by switch: comprise circuit breaker, isolating switch (being also isolation switch), earthed switch (being also grounding switch) etc.Primary cut-out is the main electric control appliance of electric substation, and have arc quenching characteristic, when systems are functioning properly, it can cut off and connect zero load and the load current of circuit and various electric equipment; When system jam, it and Cooperation with Relay, can disengagement failure electric current rapidly, to prevent expansion accident scope.Isolating switch is the device for switching ensureing work safety in high-voltage electric device, and structure is simple, does not have arc-control device, can not be used for switching on and off load current circuit.Acting as of isolating switch: insulating power supply, grid switching operation, connects and cuts off small area analysis circuit.Static contact of grounding switch is fixed on the contact tube of isolating switch, and moving contact is arranged on the end of the earthing switch blade aluminum pipe on base.
(2) take switch as the complete set of equipments of primary clustering: said elements and combination thereof are combined into the product with relative complete using function with other electric equipment products.As metal enclosed switchgear (switch cubicle), Cubicle Gas-Insulated Switchgear (GIS) and pre-mounted box type transformer substation etc.High-voltage switch gear complete set of equipments, by above-mentioned switch element and combination and other electric equipment products carry out reasonable disposition, be organically combined in metal enclosed shell, there is the product of relatively complete using function.As metal enclosed switchgear (switch cubicle), Cubicle Gas-Insulated Switchgear (GIS) and high voltage/low voltage preassembled transformer station etc.
Along with the development of power industry, the switchgear of modern electrical power trans mission/distribution system not only requires that the aspects such as control and protection realize intellectuality, also requires that the operation of switchgear realizes intelligent.Operating mechanism is the important component part of unit equipment and complete set of equipments etc. of high-voltage switch gear, high-voltage switch gear, and wherein the operating mechanism of circuit breaker is made up of energy-storage units, control unit and power transfer unit.
Current spring operating mechanism is the major way that killer switch operation adopts: stored energy mechanism is generally only to switching-in spring energy storage, and the spring that trips is generally by energy storage in breaker closing course of action.Spring operating mechanism of circuit breaker is also the concrete actuator of a deciliter circuit, open failure, deciliter is once a circulation, and its stability is extremely important.Do not detect in real time thermal energy storage process at present, whether energy storage result just obtains spring energy-storage by a hard contact point signal and completes, and lacks the analysis to thermal energy storage process and the Inspect and control to real-time status.
Motor transmission mechanism is the main operating mechanisms that the operating mechanism of isolating switch and earthed switch adopts.The on off control of its driving motor, just relies on the judgement of auxiliary hard contact point signal switch position signal.The driving torque caused under the card, the situation such as puckery of transmission mechanism is obstructed, or causes driving motor cannot normally start and stop due to auxiliary contact position signalling mistake being sent.Motor transmission mechanism also needs the method for a dynamic monitoring and Based Intelligent Control.
Operating mechanism is in complete set of equipments, and killer switch operating mechanism adopts energy-stored spring operating mechanism, the mode that part isolating switch and earthed switch also adopt driving motor to drive.No matter being that energy storage motor and driving motor are constant rotational speed when operating at present, have ignored the problem of the aspect such as electric network composition situation and electrical safety distance, can new challenge be proposed to power network safety operation and bring certain harm to electric equipment.Such as when the unloaded short bus of isolator operation can produce very fast transient overvoltage (the very fast transient overvoltage of steep wave degree, amplitude, VFTO), transient state housing current potential and electromagnetic interference, the secondary device be connected with housing the equipment with winding of GIS and connection thereof insulate to produce and endangers, the work of interference secondary device, has a strong impact on the safe operation of equipment.Integrated prepackage type box-type substation, same exist these problems.
In order to reduce the impact of energy storage motor or motor-driven, current switch generally all adopts the mode of mechanical damping; In order to weaken the phenomenons such as VFTO, prior art is generally from the raising class of insulation, measure such as increase auxiliary circuit, electronic operating mechanism etc., add complexity and the cost of mechanism, and there is not been reported from the technical scheme of the intelligent angle process such as the speed Control of energy storage motor or driving motor.
Summary of the invention
For the electrification of prior art high-voltage switch, there is complex structure in operating mechanism, cost is high; The weak point such as intellectualized operation and autodiagnosis can not be realized, the invention provides a kind of dynamic process to electrified operating mechanism and monitor, the intelligent control method of the electrified operating mechanism of high-voltage switch gear of teaching display stand diagnosis.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
The intelligent control method of the electrified operating mechanism of high-voltage switch gear of the present invention comprises the following steps:
Initialization, importing configuration files and motor historical data, according to motor historical data and design parameter, simulate the stepping curve in motor-driven and thermal energy storage process;
When motor-driven or energy storage motor carry out spring energy-storage, the dynamic process of monitoring motor real-time process amount and switch folding, carries out overall process measurement to operating mechanism action;
According to the statistics of measurement amount and historical data, the stepping curve in conjunction with driving motor is analyzed, and obtains the soft contact point signal of the position of the switch or the soft contact point signal of spring energy-storage;
Judge whether the operation of switch or thermal energy storage process complete according to soft contact point signal and hard contact point signal;
If do not completed, then continue and judge whether hard contact point signal and soft contact point signal are unified;
If hard contact point signal and the unification of soft contact point signal, then calculate the stepping position of current motor, according to stepping curve and the AC electric quantity of motor, calculate the Trigger Angle of the rectifier power source of driving motor now and export, speed Control is realized to motor, return the dynamic process of monitoring motor real-time process amount and switch folding, overall process measuring process is carried out to operating mechanism action.
The present invention is further comprising the steps of:
If hard contact point signal and soft contact point signal disunity, then export hard contact point signal, and operating process data are stored in failure operation process database and terminate this control procedure.
If successful operation, then operating process data are stored in Successful Operation process database and terminate this control procedure.
In the statistics according to measurement amount and historical data, the stepping curve in conjunction with energy storage motor or driving motor carries out in analytical procedure further comprising the steps of:
Above-mentioned analysis result is formed message, exports with soft message form.
The soft contact point signal of spring energy-storage obtains in conjunction with the stepping length that motor is current.
Described measurement amount comprises: current of electric, electric moter voltage, Motor torque, operating mechanism temperature; Motor speed and the hard contact point signal of operating mechanism.
Stepping curve in described motor-driven or thermal energy storage process is:
Wherein l is the length of motor current kinetic, and P is current stepping position, and t is the time of driving motor in current operation,
for the pace of change of motor, v is motor speed.
The described statistics according to measurement amount and historical data, the stepping curve in conjunction with driving motor carries out analysis and is:
Utilize the data of memory, the parameter picked out in stepping curve is dynamically followed the tracks of in application, obtains motor speed in current running, realizes the speed Control to motor;
According to the stepping curve of current motor speed and motor, calculate the power that driving motor will export;
In given motor stepping length, dynamically control the moment that motor exports, simultaneously according to the situation of current motor stepping, provide the position of the position of switch or energy storage, operating mechanism dynamic running process information.
The present invention has following beneficial effect and advantage:
1. the inventive method provides a kind of and carries out overall process monitoring to operating mechanism, again can teaching display stand diagnosis a kind of intelligent control method, the statistics of historical data and the stepping length of current motor can be passed through simultaneously, the soft contact point signal of spring energy-storage situation or the position of the switch is provided, when isolating switch responsiveness is slower, separating brake back loading side residual voltage is lower, and the VFTO amplitude produced in combined floodgate, sub-switching operation process is also lower;
2. the inventive method monitoring motor output torque realizes spring at thermal energy storage process without impact in the scope run, and carries out speed Control to motor; The open and close course of action of isolating switch and earthed switch is driven by driving motor direct change, reduces harmonic wave by reducing arcing time, thus reduces harmonic wave further to the radiation of transformer, is conducive to the useful life extending insulating oil and insulating paper;
3. reduce operating mechanism Oscillation Amplitude when motor energy storage or motor-driven; Avoid because of transmission mechanism card, the operating process caused such as puckery is obstructed, close or open state not in place, coil such as to burn out at the phenomenon;
4. by speed Control, the pressure of isolating switch contact can be increased, improve the reliability of electrical network contact point; Faultless gear change when start and stop controls, and reduces the mechanical fatigue of operating mechanism; Motor periodically active current limit value protection, protects motor to the utmost;
5. pair operating mechanism is in real time execution process, can carry out real-time examination and repair and Stateful Inspection; Flexible operation, noise is low;
6. adjusting by circuit breaker " oco " logic and time, carries out fast energy storage control to energy storage motor, more effectively coordinates reclosing logic.
7., by providing the soft contact point signal of the position of breaker energy storage situation or disconnecting link, contact point signal hard with it verifies mutually, improves the accuracy of energy storage situation or switch position signal.
8. consider from installation and use, this invention is easy for installation, does not change or changes existing cabinet body structure and related components as far as possible; The operating mechanism after the method is used not affect manual operation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of control device project organization of the present invention;
Fig. 2 is the matched curve schematic diagram of variable speed electric motors, particularly stepping overall length and speed in the present invention;
Fig. 3 is control method flow chart of the present invention.
Embodiment
Below in conjunction with Figure of description, the present invention is further elaborated.
The intelligent control method of the electrified operating mechanism of high-voltage switch gear of the present invention comprises the following steps:
Initialization, importing configuration files and motor historical data, according to motor historical data and configuration parameter, simulate the stepping curve in motor-driven or thermal energy storage process;
During motor-driven or when energy storage motor carries out spring energy-storage, the dynamic process of monitoring motor real-time process amount and switching manipulation, carries out overall process measurement to operating mechanism action;
According to the statistics of measurement amount and historical data, stepping curve in conjunction with driving motor or energy storage motor carries out analyzing (mainly comparing the step machine distance of motor and the actual operating distance that should complete), the auxiliary signal obtaining the position of the switch or energy storage position is soft contact point signal (if step distance equals operating distance, soft contact point signal is that operating process completes, otherwise completes for non-);
(namely if energy storage motor, hard contact point signal is whether energy storage motor completes whole thermal energy storage process to judge whether the operation of switch completes according to soft contact point signal and hard contact point signal; If isolating switch or earthed switch, hard contact point signal is the folding position signalling of switch; Soft contact point signal is whether energy storage motor or driving motor complete operating distance).
If operating process does not complete, then continue and judge whether hard contact point signal and soft contact point signal are unified;
If (this hard contact point signal is different according to application places difference: be applied in the operating mechanism of circuit breaker, this hard contact point signal is that energy storage has completed for hard contact point signal; Being applied in the position signalling that isolating switch or earthed switch are switch opens or closedown) contact point signal soft with it be unified, then calculate current switch moving contact position, according to stepping curve and the alternating current electric parameters of motor, calculate the rotating speed that energy storage motor or the driving motor next moment should export, according to the model of motor, obtain the control command of next moment motor further and output to motor.Return the dynamic process of monitoring motor real-time process amount and switch folding, the measurement of subsequent time overall process is carried out to operating mechanism action.
If hard contact point signal and soft contact point signal disunity, then export hard contact point signal or soft message, report switch has problems, and operating process data are stored in failure operation process database and terminate this control procedure;
If hard contact point signal and soft contact point signal synchronously complete, then operating process data are stored in Successful Operation process database and terminate this control procedure.
As shown in Figure 1, for the controller architecture schematic diagram of the inventive method application, the inventive method is exactly measure and the motor-driven curve of matching according to the electric moter voltage, electric current and the ambient temperature that monitor, humidity equivalent, calculate pilot angle and the torque of motor power, thus realize the Dynamic controlling to operating mechanism.In motor output torque process, according to the parameter such as motor and operating mechanism and the current of electric, voltage, moment of torsion etc. monitored in real time, to the speed Control that motor carries out, thus the spring realizing circuit breaker impacts transmission without impact energy storage or to the nothing of isolating switch etc.
The soft contact point signal of spring energy-storage obtains in conjunction with the stepping length that energy storage motor is current, and this signal is the soft contact point signal that relaying protection and TT&C system judge spring energy-storage degree; The soft contact point signal of isolating switch or earthed switch is also obtain in conjunction with the stepping length of driving motor.Due in actual applications, no matter be energy storage motor or driving motor, its operating distance is certain.Compare the stepping length of motor and the size of its operating distance in real time, be energy storage if equal and put in place or switching manipulation puts in place, and using this signal as soft contact point signal.
As shown in Figure 3, the inventive method concrete steps are:
The first step: first initialization is carried out to control section;
Second step: importing configuration files and motor historical data, according to motor historical data and design configurations parameter, simulates the stepping curve in motor-driven and thermal energy storage process; The following motor movement equation of this stepping curve negotiating is expressed:
Wherein l is the length of the current stepping of motor, and P is switch current location, and t is the time of driving motor in current operation,
for the pace of change of motor, v is motor speed.As shown in Figure 2, it is schematic diagram.
3rd step: when motor-driven or energy storage motor carry out spring energy-storage, monitoring motor real-time process amount and dynamic process, carries out overall process measurement to operating mechanism action, then according to the statistics of measurement amount and historical data, stepping curve in conjunction with motor is analyzed, and obtains soft contact point signal.
This step is the collection to motor movement process live signal, and the physical quantity that needs are measured is: motor AC voltage and electric current
direct voltage and electric current
motor torque and operating mechanism temperature etc.Communications parameter or idle contact output parameter: the real-time sampling amount of motor; Electrical motor gearshift controlling curve; The model real-time identification parameter (being calculated by least square method) of motor; The scope of exerting oneself (being obtained by inquiry parameter of electric machine table) of motor; Operating mechanism statistics degree of fatigue (operational factor according to historical data and current motor obtains) etc.In the present embodiment, above-mentioned analysis result is formed message, exports with digital communication.
4th step: according to the soft contact point signal of operating mechanism contact position (by motor speed and running time corresponding go out the range ability of motor, the distance between distance=switch two contacts of this motor drag) and the closed hard contact point signal of switch (refer to motor close a floodgate the signal that puts in place) judge to operate and whether put in place; Whether this step is the scope according to motor output torque, judges energy storage motor or driving motor, be failed operation, if be failed operation, then all devices of operating mechanism resets.In the present embodiment, whether arrived by soft contact point signal and hard contact point signal simultaneously and judge whether operation completes.Logic and operation is carried out to the soft contact point signal in the hard contact point signal of operating mechanism and control appliance, when operation result be 1 that is hard contact point signal and soft contact point signal be 1 simultaneously, then think that energy storage has completed or switching manipulation puts in place, this course of action terminates; Otherwise when operation result be 0 that is hard contact point signal and soft contact point signal have one to be 0 time, then think this operation not success, stored in the 5th step;
5th step: continue and judge whether hard contact point signal and soft contact point signal are unified, if unification and hard contact point signal and soft contact point signal are 0 simultaneously, then think that the closed or opening operation of switch does not put in place, continue the 6th step;
6th step: when hard contact point signal and the unification of soft contact point signal, then think that operating mechanism action is normal, calculate current switch moving contact position, according to stepping curve and the AC electric quantity of motor, calculate the Trigger Angle of the rectifier power source of driving motor now and export, turning back to the 3rd step, the dynamic process of monitoring motor real-time process amount and switch folding, overall process measuring process is carried out to operating mechanism action.
In 5th step, if hard contact point signal and soft contact point signal disunity, then think that operation has and there is some problems, exports hard contact point signal and soft contact message, the data of operating process are stored in miss data storehouse and terminate this control procedure;
Utilize the data of history, the parameter picked out in equation of motion model is dynamically followed the tracks of in application.Obtain v value in current running.According to the model of current v value and driving motor, calculate the power that driving motor will export, the moment that motor exports dynamically is controlled in given drive length, simultaneously according to the situation of current driving motor stepping, provide the information such as the position of energy storage state or switch, operating mechanism dynamic running process.
Claims (8)
1. an intelligent control method for the electrified operating mechanism of high-voltage switch gear, is characterized in that comprising the following steps:
Initialization, importing configuration files and driving motor, energy storage motor historical data, according to two motor historical data and design parameters, simulate the stepping curve in two motor-drivens and thermal energy storage process;
When driving motor transmission or energy storage motor carry out spring energy-storage, monitor the dynamic process of two motor real-time process amounts and switch folding, overall process measurement is carried out to operating mechanism action;
According to the statistics of measurement amount and historical data, the stepping curve in conjunction with driving motor is analyzed, and obtains the soft contact point signal of the position of the switch or the soft contact point signal of spring energy-storage;
Judge whether the operation of switch completes according to soft contact point signal and hard contact point signal;
If do not completed, then continue to judge whether the hard contact point signal of switch and soft contact point signal are unified;
If the hard contact point signal of switch and the unification of soft contact point signal, then calculate current switch moving contact position, according to stepping curve and the AC electric quantity of driving motor, calculate the Trigger Angle of the rectifier power source of driving motor now and export, speed Control is realized to driving motor, return the dynamic process of monitoring two motor real-time process amount and switch folding, overall process measuring process is carried out to operating mechanism action.
2., by the intelligent control method of the electrified operating mechanism of high-voltage switch gear according to claim 1, characterized by further comprising following steps:
If hard contact point signal and soft contact point signal disunity, then export hard contact point signal, and operating process data are stored in failure operation process database and terminate this control procedure.
3. by the intelligent control method of the electrified operating mechanism of high-voltage switch gear according to claim 1, it is characterized in that: if operated, then operating process data are stored in Successful Operation process database and terminate this control procedure.
4. by the intelligent control method of the electrified operating mechanism of high-voltage switch gear according to claim 1, it is characterized in that: in the statistics according to measurement amount and historical data, the stepping curve in conjunction with energy storage motor or driving motor carries out in analytical procedure further comprising the steps of:
Analysis result is formed message, exports with soft message form.
5., by the intelligent control method of the electrified operating mechanism of high-voltage switch gear according to claim 1, it is characterized in that: the soft contact point signal of spring energy-storage obtains in conjunction with the stepping length that motor is current.
6., by the intelligent control method of the electrified operating mechanism of high-voltage switch gear according to claim 1, it is characterized in that: described measurement amount comprises: current of electric, electric moter voltage, Motor torque, operating mechanism temperature; The hard contact point signal of motor speed and the position of the switch.
7. by the intelligent control method of the electrified operating mechanism of high-voltage switch gear according to claim 1, it is characterized in that: the stepping curve in described motor-driven or thermal energy storage process is:
v&＝f(v,l,P,t)
Wherein l is the length of motor current kinetic, and P is switch current location, and t is the time of driving motor in current operation, and v & is the pace of change of motor, and v is motor speed.
8. by the intelligent control method of the electrified operating mechanism of high-voltage switch gear according to claim 1, it is characterized in that: the described statistics according to measurement amount and historical data, the stepping curve in conjunction with driving motor carries out analysis and is:
Utilize the data of memory, the parameter picked out in stepping curve is dynamically followed the tracks of in application, obtains motor speed in current running, realizes the speed Control to motor;
According to the stepping curve of current motor speed and motor, calculate the power that driving motor will export;
In given motor-driven length, dynamically control the moment that motor exports, simultaneously according to the situation that current driving motor runs, provide the position of switch, operating mechanism dynamic running process information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210120406.4A CN103378652B (en) | 2012-04-23 | 2012-04-23 | Intelligent control method of electrified operation mechanism of high-voltage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210120406.4A CN103378652B (en) | 2012-04-23 | 2012-04-23 | Intelligent control method of electrified operation mechanism of high-voltage switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103378652A CN103378652A (en) | 2013-10-30 |
| CN103378652B true CN103378652B (en) | 2015-07-15 |
Family
ID=49463373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210120406.4A Active CN103378652B (en) | 2012-04-23 | 2012-04-23 | Intelligent control method of electrified operation mechanism of high-voltage switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103378652B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525396B (en) * | 2016-10-20 | 2018-12-25 | 国网上海市电力公司 | A kind of disconnecting switch mechanical load self-operated measuring unit and its detection method |
| CN106872884A (en) * | 2017-01-23 | 2017-06-20 | 杨志强 | The monitoring device and monitoring method of a kind of disconnecting switch |
| CN110207977B (en) * | 2019-04-16 | 2021-06-18 | 平高集团有限公司 | Testing method for energy storage transmission system of disc spring hydraulic mechanism |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202185A (en) * | 2006-12-12 | 2008-06-18 | 张世兴 | Intelligent secure prevention circuit breakers |
| CN201185405Y (en) * | 2008-04-17 | 2009-01-21 | 沈阳工业大学 | Digital servo control apparatus of electric machine operation mechanism for high-voltage circuit-breaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7253929B2 (en) * | 2002-02-06 | 2007-08-07 | Quad/Tech, Inc. | Camera assembly for a printing press |
-
2012
- 2012-04-23 CN CN201210120406.4A patent/CN103378652B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202185A (en) * | 2006-12-12 | 2008-06-18 | 张世兴 | Intelligent secure prevention circuit breakers |
| CN201185405Y (en) * | 2008-04-17 | 2009-01-21 | 沈阳工业大学 | Digital servo control apparatus of electric machine operation mechanism for high-voltage circuit-breaker |
Non-Patent Citations (1)
| Title |
|---|
| 基于MCU控制的高压开关电源;王斌等;《压电与声光》;20110228;第33卷(第1期);64-67页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103378652A (en) | 2013-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103457351B (en) | Integral switch cabinet Intelligent control system | |
| CN109001591A (en) | A kind of 10kV power distribution network primary equipment intelligence fortune inspection engineering test platform | |
| CN202978078U (en) | Intelligent-type medium-voltage whole-set switch device | |
| CN105092058A (en) | On-line temperature monitoring system for high tension switchgear, and monitoring method thereof | |
| CN203732254U (en) | Circuit breaker mechanical characteristic online monitoring device | |
| CN204008093U (en) | VD4 type overhaul of line breaker control enclosure | |
| CN103367059B (en) | A kind of high-voltage intelligent circuit breaker | |
| CN111272225A (en) | Switch cabinet comprehensive state monitoring system | |
| CN102646545A (en) | Medium-voltage circuit breaker for online monitoring of mechanical characteristics | |
| CN103378652B (en) | Intelligent control method of electrified operation mechanism of high-voltage switch | |
| CN202276193U (en) | Intelligent switch cabinet integrating intelligent operation and control and microcomputer protection | |
| CN103441508A (en) | Multipurpose low-voltage intelligent capacitor | |
| CN104078872A (en) | Mobile armored metal-enclosed switch cabinet | |
| CN102570484A (en) | Novel 10kV switch device and control method thereof | |
| CN103579948B (en) | Integrated power transformer intelligent assembly | |
| CN204881871U (en) | High tension switchgear's temperature on -line monitoring system | |
| CN204669085U (en) | A kind of control type power distribution circuit breakers far away | |
| CN201075598Y (en) | Shutter mechanism for 10 kv alternating current metal closing switch apparatus | |
| CN205427144U (en) | Real defects simulation of type high voltage circuit breaker mechanism and branch closing coils current detection device | |
| CN209673141U (en) | A kind of GIS switchgear on-line monitoring system | |
| CN203966415U (en) | Middle-and-high-ranking low pressure maintenance electrician training checking device | |
| Cipriani et al. | Electrical distribution substation remote diagnosis and control system | |
| CN104483890A (en) | High voltage switch cabinet temperature monitoring system based on PLC | |
| CN103077644B (en) | Split-phase breaker hydraulic operation mechanism training device | |
| CN205004669U (en) | Intelligent metal sealed switch equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160331 Address after: 110144 Shenyang economic and Technological Development Zone, Liaoning, Shenyang Road, No. 32 Patentee after: SIFANG-TBEA INTELLIGENT ELECTRICAL CO., LTD. Address before: 110144 Shenyang economic and Technological Development Zone, Liaoning Road, No. 32 Patentee before: TBEA Shenyang Transformer (Group) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.32, Kaifa Road, Shenyang Economic and Technological Development Zone, Shenyang City, Liaoning Province Patentee after: TBEA Smart Energy Co.,Ltd. Address before: No.32, Kaifa Road, Shenyang Economic and Technological Development Zone, Shenyang City, Liaoning Province Patentee before: SIFANG TBEA INTELLIGENT ELECTRIC CO.,LTD. |