CN101060234A - Control apparatus for gas insulated switchgear - Google Patents
Control apparatus for gas insulated switchgear Download PDFInfo
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- CN101060234A CN101060234A CNA2006101378840A CN200610137884A CN101060234A CN 101060234 A CN101060234 A CN 101060234A CN A2006101378840 A CNA2006101378840 A CN A2006101378840A CN 200610137884 A CN200610137884 A CN 200610137884A CN 101060234 A CN101060234 A CN 101060234A
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- spring
- insulated switchgear
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0358—Connections to in or out conductors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/42—Driving mechanisms
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention provides an operation device for a gas-insulated switch device, the operation device is composed of a hydraulic pressure operation device and a spring operation device, and is used for driving a moveable contact of the gas-insulated switch device. The operation device for the gas-insulated switch device according to the invention, is provided with a fixed contact arranged in a grounding container which is injected with insulated gas, and a current turn-off device or a current turn-on device which is contacted with the fixed contact and composed of the moveable contact, the operation device for the gas-insulated switch device is characterised in that, for the operation device which drives the moveable contact in a turn-off direction or a turn-on direction, the turn-off operation is performed by using the spring operation device, and the turn-on operation is performed by using the hydraulic pressure operation device.
Description
Technical field
The present invention relates to a kind of by cutting off fixed contact that electric current and connection circuit use and the gas-insulated switchgear device that movable contact constituted that contacts with this fixed contact, the control apparatus for gas insulated switchgear that particularly constitutes, be used to drive above-mentioned movable contact by apply device and spring operation means.
Background technology
Usually, gas-insulated switchgear device owing to need making current and cut off electric current, therefore has the fixed contact and the movable contact that are used for the circuit contacts of making current, when cutting off circuit, the signal of telecommunication that cuts off is sent to the operator that drives movable contact.In addition, in order to connect circuit, command signal is sent to operator equally.
At present, the drive source as the operator of the movable contact that is used for the driving gas insulated switch mainly uses following three kinds of operators: the hydroman of the oily accumulator (oilaccumulator) that uses Compressed Gas as drive source; Directly Compressed Gas is stored in the pressure vessel and as the air-operated device of drive source; And helical spring or disk spring spring (spring) operator as drive source.
As mentioned above, hydroman is the device of the accumulator that utilizes Compressed Gas as the storage drive energy, only uses this accumulator, to the hydroman supplying energy.Equally, the air-operated device is the device of high-pressure air tank tank as the storage drive energy, only uses this high-pressure air tank tank, to air-operated device supplying energy.
On the other hand,, utilize compression elasticity to carry out the design of ON Action, the spring action is not used for cutting off the design of action though adopt sometimes as the gas-insulated switchgear device that has partly used the air-operated device.
The operation principle of above-described hydraulic operation formula and air-operated formula drive unit is quite similar, below its structure example of explanation.
That is, act on a side of the mutually different piston of compression area all the time by making high pressure, and convert the pressure of opposite side to high pressure, thereby carry out ON Action.In addition, the pressure of piston one side of the drive unit by will being in on-state converts low pressure to, cuts off action to finish.
The feature of hydroman and air-operated device is by increasing the diameter of piston, can obtain with comparalive ease to compare bigger operating energy with the spring-operated device.
In the spring-operated device, because cut-out is relevant each other with elastic force with connection with elastic force, so can not the independent elastic force that changes a certain side.In addition, general structure is to utilize cam mechanism etc., the cut-out of mechanical system is linked with elastic force with elastic force and connection, still, because the mechanical strength of union piece, so can not realize very big operating physical force as hydroman and air-operated device.
Outside above-mentioned feature, hydroman and air-operated utensil have following structure: have accumulator or high-pressure air tank tank as energy accumulating device, utilize this energy accumulating device, to the operator supplying energy.Therefore, this operator passes through merely energy accumulating device to be maximized, but just can easily increase the number of times of gas-insulated switchgear device continuous action.
Generally, use the gas-insulated switchgear device of above-mentioned hydroman and air-operated device, sometimes require under the situation of not appending supplying energy function according to the condition continuous operation by hydraulic pump compressor (pump compressor) etc., for example, carry out ON Action → cut-out action → ON Action → cut-out action, perhaps carry out ON Action more than three times → cut-out action continuously.
In addition, the common issue with of above-mentioned hydroman and air-operated device is because energy accumulating device has used gas, and therefore along with the work of gas-insulated switchgear device, energy (being stored in the hydraulic pressure in the accumulator) reduces.
Gas-insulated switchgear device is with operator (for example being the situation of hydroman), with rated pressure (31.5MPa) as benchmark, according to the usual pressure range of standard code (31.5～33.5MPa), at a high speed reclose road action locking (locking cuts off continuously-connects-cuts off action) pressure (30.0MPa), ON Action lock pressure (27.0MPa), cut-out moves lock pressure (25.5MPa).
So the performance of the cut-out electric current of machine must guarantee the lock pressure of exercises (cutting off action lock pressure 25.5MPa).In addition, because the design of mechanical strength must be designed to the peak (33.5MPa) of usual pressure standard, so can not accomplish very economical design.
As a result, improve the cost of machine, also be difficult to accomplish compact design simultaneously.Moreover, if using gases, pressure can change along with the variation of environment temperature, stored energy, because of leakage of oil and compressed-air actuated leakage reduce, for this reason, need use the hydraulic pump compressor to wait makeup energy termly, thereby also need Aided Machines such as pressure monitoring device and safety device, this also can exert an influence to machine cost.
Different with the air-operated device with above-mentioned hydroman, the spring-operated device is made of following two types of springs, promptly cuts off the compressed action of spring is cut off in action with spring and double as connection spring.
At present, all spring-operated utensils of commercialization have following mechanism: when finishing the ON Action of gas-insulated switchgear device by discharging connection with the driving energy of spring, spring is cut off in compression.
In addition, in the mechanism (mechanism) of spring-operated device, gas-insulated switchgear device can only carry out following action continuously: cut off action → ON Action → cut-out action, after finishing this continuous action, store the time of connecting as being used to, approximately need about 10～15 seconds with spring energy.
Compare with the air-operated device with hydroman, the spring-operated device can only be finished the continuous action of cut-out → connection → cut-out, and this is the shortcoming of the maximum of spring-operated device.Particularly, be machine more than the 300kV for supply power voltage, mostly can not satisfy requirement of client.
In the spring-operated device, driving energy is to be kept by the mechanical energy that compression stress provided of spring, thus its very big advantage just be, can be as hydroman or air-operated device, the value of driving energy changes in time.Simultaneously, owing to action is to be finished by the compression energy of elastic force, so can come the driving gas insulated switch with the energy that equates all the time.This also is the difference of the maximum when comparing with the air-operated device with the hydroman that operating energy might change.
As the means that address the above problem, open communique spy opens in flat 5-298968 number at Japan Patent, discloses the hydroman that disk spring is used for oily accumulator.But this hydroman because accumulator is shared when cutting off and connect, is therefore compared with the hydroman of identical operations energy, and the capacity of accumulator is more a lot of greatly than using situation of the present invention.Basically, only depend on disk spring to replace in the past accumulator that hydroman adopted, that use Compressed Gas, can not solve the technical problem that hydroman in the past exists.
Summary of the invention
Therefore, the present invention puts together hydroman, air-operated device, the spring-operated device advantage separately of the operator of current main contact as the driving gas insulated switch, solve above problem, thereby the objective of the invention is to, a kind of control apparatus for gas insulated switchgear that can overcome above-mentioned three kinds of shortcomings that operator had is provided.
That is, when being used in the present invention on the gas-insulated switchgear device, can accomplish compact design, therefore can realize the gas-insulated switchgear device operator of the very high and economical rationality of design freedom.
For example, can solve the shortcoming of hydroman and air-operated device, the actuating force when promptly operating is from the lock pressure condition changes to that unreasonable and environment temperature in the design of maximum pressure conditions changes the variation of the operating characteristic of bringing and hydraulic pump, compressor reducer, the Aided Machine of hydraulic oil pressure-air when being used for replenishing gas leakage are too much etc. problem.In addition, can solve the shortcoming that is difficult to realize the big design of operating physical force and the spring-operated device of the continuous action that can only finish cut-out → connection → cut-out fully.
Description of drawings
Fig. 1 is the figure that the control apparatus for gas insulated switchgear of expression the preferred embodiments of the present invention is in complete on-state;
Fig. 2 is the figure that expression operating means shown in Figure 1 cuts off action;
Fig. 3 is the figure of the dissengaged positions of expression operating means shown in Figure 1;
Fig. 4 a is the figure that expression operating means shown in Figure 1 carries out ON Action;
Fig. 4 b is the figure that expression operating means shown in Figure 1 carries out ON Action;
Fig. 5 is the figure of the action of the operating means when abnormal conditions taking place after the expression ON Action shown in Figure 1.
Label declaration
10...... cut-out spring
12...... main shifter lever
14...... cut-out spring lever
18...... roller lever
20...... three grades of levers
22...... second lever
24...... one-level lever
26...... solenoid lever
30,32,34...... resets and uses spring
36...... operated piston
38...... accumulator
40...... operated piston control room
42...... switching valve
44...... switching valve control room
46...... connect with pilot valve (pilot valve)
Use solenoid 48...... connect
50...... back-moving spring
54...... aperture
56...... hydraulic pump
Use solenoid 58...... cut off
60...... conversion B mouth
62...... conversion C mouth
64...... casing of hydraulic pump
66...... operated piston low-pressure chamber
Use the buffer unit part 68...... cut off
70...... cut-out spring block
72...... conversion A mouth
74...... pressure discharges unidirectional valve
76...... connect variable gate
78...... pressure discharges the backstop piston
Use buffer unit 80...... connect
100...... spring operation means unit
200...... apply device unit
Use link rod 300...... connect
Embodiment
Below, with reference to accompanying drawing, describe embodiments of the invention in detail.
In the following description, the representational embodiment that the present invention is used to solve above-mentioned technical task has been proposed.In addition, can be used as other embodiment that the present invention proposes is replaced by the explanation of component part of the present invention.
The present invention proposes for the problem that solves present existence, and it is as follows to have structure: use spring operation means to implement the cut-out action of being finished by the movable contact of gas-insulated switchgear device, and use apply device to implement ON Action.When ON Action, the cut-out spring that above-mentioned hydraulic means can compress spring operation means comes the storage drive energy.
In addition, spring operation means of the present invention and apply device are fully independently separately to constitute, and according to the configuration of device, utilize the link rod that connects two operators and lever to wait and finish mechanical movement.And apply device is to be made of such system: this system also finishes the storage of cutting off with the driving energy of spring operation means when finishing ON Action, and discharges the drive source of apply device, i.e. high-pressure work oil automatically.
On the other hand, the present invention is used on the gas-insulated switchgear device, realize constant all the time operating energy and use the spring-operated device that can store the compression spring energy with operating means by using to cut off to move, can rationally solve use hydraulic means and the problem that exists of the gas-insulated switchgear device of air-operated device in the past, promptly guarantee to move under the lock pressure the failure of current characteristic and guarantee mechanical performance under the maximum pressure condition.
Also have, the present invention can get rid of the variation of ambient temperature fully to cutting off the influence of operating characteristics, and, can solve in the spring-operated device in the past the problems of mechanical strength that the increase owing to operation strength produces by in ON Action, using apply device.In addition,, the capacity of connecting with the accumulator of apply device is increased according to requirement of client or reduce for the number of times of continued operation, so that it adapts to the desired item of client, and needn't be to the very big change of machine do.In addition, the overall structure of gas-insulated switchgear device is as follows, promptly uses parts such as link rod and lever, makes by cutting off with spring operation means and connecting two operating means that constitute fully independently with apply device, can make mechanical movement.Like this, for the configuration direction and the position of operator, also can freely design, thereby gas-insulated switchgear device can be realized the miniaturization of machine, can realize simultaneously rationally and economic design.
Below, the present invention is described in detail according to preferred embodiment, and the present invention is not limited to embodiment.
[first embodiment]
Fig. 1 is the figure that the control apparatus for gas insulated switchgear of expression preferred embodiment of the present invention is in complete on-state.Operating means of the present invention is made of following parts: the spring operation means unit 100 that cuts off action; Apply device unit 200, it compresses the cut-out spring 10 of spring operation means unit 100, and carries out ON Action when carrying out ON Action.100, the 200 usefulness connection of operating means unit couples together with link rod 300.In addition, the movable contact A of gas-insulated switchgear device C is connected with the main shifter lever 12 of spring operation means unit 100 by link rod B.
Described spring operation means unit 100 by cutting off spring lever 14 and hinge 16, passes to main shifter lever 12 to the elastic force that stores the cut-out spring 10 that cuts off energy.Main shifter lever 12 contacts with three grades of levers 20 by the roller lever 18 of main shifter lever, keeps revolving force.By means of the action of main shifter lever 12, three grades of levers 20 produce clockwise rotatory forces, therefore with the rotary middle spindle of three grades of levers 20, only move a necessary size and design to the direction of the load that is subjected to main shifter lever 12.
The revolving force of three grades of levers 20 that produced by above-mentioned principle is kept by second lever 22.To be in contact with one another relation the same with main shifter lever 12 and three grades of levers 20, by being in contact with one another of three grades of levers 20 and second lever 22, also acts on clockwise revolving force on second lever 22.The revolving force of second lever 22 is held by second lever 22 and being in contact with one another of one-level lever 24.Because the rotating shaft of one-level lever 24 is designed to be on the stop (dead point) with the position that contacts with each other of second lever 22, so revolving force just can not act on the one-level lever 24.At this moment, one-level lever 24 chimeric rotating shafts also are connected with lever 26 with solenoid by link rod 28.On above-mentioned each lever 20,22,24, being respectively equipped with resets uses spring 30,32,34, thereby anticlockwise revolving force is acted on each lever 20,22,24.
Carry out on the operated piston 36 of apply device unit 200 of ON Action chimeric have connect with link rod 300 and be connected with main shifter lever 12.At this moment, under complete on-state, hydraulic pressure can not act on the operated piston 36.
In addition, apply device unit 200 is made of with solenoid 48 switching valve 42 and connection, switching valve 42 is when making operated piston 36 carry out ON Action, hydraulic oil is supplied to operated piston control room 40 from hydraulic-driven with accumulator 38, drives the connection pilot valve 46 that is used for hydraulic oil is supplied to switching valve control room 44 and connect with solenoid 48.
In addition, be provided with at the central part of switching valve 42: pipeline 52, its hydraulic oil is supplied to switching valve control room 44; And aperture (orifice) 54, it is by keeping the pressure in switching valve control room 44, the position that keeps switching valve 42 with hydraulic pressure.And, also be provided with and be used to produce hydraulic oil and hydraulic oil is supplied to the hydraulic pump 56 of accumulator 38, and be built-in with safety valve, break valve and filter taps in inside.
Gas-insulated switchgear device C cuts off action under the state of Fig. 1, this cut-out action is to be undertaken by the cut-out signal of telecommunication is sent to gas-insulated switchgear device C, is perhaps undertaken by manual operation.
When pushing above-mentioned manual operation when using button, solenoid just rotates with lever 26.Carrying out in electric mode under the situation of identical action, electric current just flows to and cuts off with solenoid 58, drive solenoid, make solenoid rotate to clockwise direction with lever 26, so chimeric rotating shaft and also rotating to clockwise direction with one-level lever 24 that solenoid is connected with lever 26 was disengaged with being connected of second lever 22.So by means of the revolving force that acts on the second lever 22, second lever 22 also rotates to clockwise direction, second lever 22 was disengaged with being connected of three grades of levers 20.
Like this, because three grades of levers 20 were disengaged with being connected of main shifter lever 12, unclamped cut-out spring 10, therefore main shifter lever 12 rotates to clockwise direction, drives movable contact A to cutting direction.By means of rotatablely moving of main shifter lever 12, the operated piston 36 that mechanically connects by connecting link rod 300 is direction action to the left just.
Fig. 2 is that expression is cut off the figure of the state of action according to control apparatus for gas insulated switchgear of the present invention.
Operating on low voltage oil in the operated piston control room 40 is discharged in the casing of hydraulic pump 64 with C mouth 62 by conversion with B mouth 60 from conversion, thereby the work oil in the casing of hydraulic pump 64 just flows in the operated piston low-pressure chamber 66.In addition,, carry out the braking maneuver of gas-insulated switchgear device, therefore on operated piston 36, be provided with cut-out with buffer unit part 68 in the final stage of cutting off action.After arriving the stroke end controlled by buffer unit part 68, make cut off spring block 70 keep cut off elastic force in, fixing off-position.
Fig. 3 represents the dissengaged positions of control apparatus for gas insulated switchgear of the present invention.Below, ON Action of the present invention is described.
Gas-insulated switchgear device C begins to carry out ON Action from the dissengaged positions of Fig. 3.Also as cutting off action, ON Action is connected the signal of telecommunication by transmitting to gas-insulated switchgear device C, perhaps operates by manual operation.
When pushing manual operation when using button, connect and just open with pilot valve 46, make with electric power under the situation of its action, electric current just flows into to be connected with in the solenoid 48, to drive solenoid, opens to connect and uses pilot valve 46.After connection was opened with pilot valve 46, just to switching valve control room 44 supply hydraulic oils, switching valve 42 is direction conversion to the left just.
Like this, conversion just is connected to each other with the B mouth 60 of A mouth 72 and conversion usefulness, and hydraulic oil just is supplied to operated piston control room 40 from accumulator 38.At this moment, discharge unidirectional valve 74 through the pressure behind switching valve control room 44 and the pipeline and be closed condition, and do not discharge hydraulic oil.
By supplying hydraulic oils to operated piston control room 40, driving operated piston 36 direction to the right moves.Be connected to connect and rotate, be compressed thereby cut off spring 10 to counter clockwise direction with the main shifter lever 12 on the link rod 300.Connect variable gate 76 by between connecting accumulator 38 and changing, being provided with A mouth 72, thus the speed that can regulate operated piston 36.In the process of ON Action, by keeping the hydraulic oil in switching valve control room 44, from the aperture 54 supply hydraulic oils that are arranged on switching valve 42 inside.
Fig. 4 a, Fig. 4 b represent the state in the ON Action process of control apparatus for gas insulated switchgear of the present invention.
In the final stage of ON Action, operated piston 36 just discharges backstop piston (checkpiston) 78 with pressure and bumps against.At this moment, pressure discharges backstop piston 78 opens pressure release unidirectional valve 74, and the hydraulic oil in the switching valve control room 44 is discharged with C mouth 62 to conversion.
Be connected the main shifter lever 12 that connects with on the link rod 300 with operated piston 36, discharge backstop piston 78 at operated piston 36 and pressure and be in the moment of bumping against the position relation, turned to stroke (over stroke) position.The so-called stroke of crossing is meant following action: in order to carry out connecting moves once more with the main shifter lever 12 of spring operation means unit 100, three grades of levers 20, second lever 22 and one-level levers 24, make main shifter lever 12 from the link position of dissengaged positions further to counterclockwise rotating, with the gap a on the contact site of guaranteeing to be set in roller lever 18 and three grades of levers 20.At this moment, by adjusting the characteristic of connecting with buffer unit 80, carried out the time of stroke and can guarantee to connect once more the needed time of lever.In addition, when connecting characteristic with buffer unit 80 and can change,, can tackle the characteristic of other ON Action at an easy rate according to the kind of gas-insulated switchgear device C.
Fig. 5 represents the final stage of the ON Action of control apparatus for gas insulated switchgear of the present invention.
When carrying out stroke action, pressure discharges unidirectional valve 74 and is opened, and the hydraulic oil in the switching valve control room 44 is discharged with C mouth 62 to conversion.So switching valve 42 is direction action to the right just, conversion communicates with one another with C mouth 62 with B mouth 60 and conversion, and the hydraulic oil in the operated piston control room 40 is discharged to casing of hydraulic pump 64, and operated piston 36 has just lost hydraulic-driven power.At this moment, the main shifter lever of crossing under the stroke state 12 just rotates to clockwise direction by means of the elastic force that cuts off spring 10, turns to the position that is connected with three grades of levers 20 always.Simultaneously, be connected connect with the operated piston on the lever 300 36 also to the left direction move the distance that is equivalent to gap a, so ON Action constipation bundle.
Countermeasure when then, the generation abnormal operation of operating means of the present invention being described.
Becoming the abnormal operation of problem in gas-insulated switchgear device C, is after ON Action, and for a certain reason, connection can not reach buttoned-up status with control valve 46, and high pressure can not be supplied to switching valve control room 44 with oil then.
As mentioned above, under the situation that abnormal operation has taken place, the locational pressure that is arranged on through communicating with one another behind switching valve control room 44 and the pipeline discharges unidirectional valve 74, discharges backstop piston 78 because operated piston 36 has been pushed down pressure, so pressure release unidirectional valve 74 is not exclusively closed.And, even do not have because of anomaly is in also can be held in low pressure to the pressure in switching valve control room 44 under the situation of buttoned-up status with pilot valve 46, can confirm this anomaly by the running number of times that increases pump in connection.
The effect of invention
In sum, gas-insulated switchgear device of the present invention has solved in the past air hydraulic operator Problem, namely solved the performance that is used for guaranteeing under loop locking (locking) pressure condition and Irrational reason in the design of the mechanical performance under the high pressure condition can also be got rid of simultaneously fully The impact that the variation of environment temperature causes the rupturing operation characteristic. In addition, when hydroman is used When ON Action, can solve the problem that becomes the mechanical strength of problem in the spring operator in the past. In addition, for the problem of continued operation number of times, by changing the capacity of accumulator, also being easy to should Right.
And the overall structure of gas-insulated switchgear device is as follows: independent formation is cut off and is used bullet respectively Apply device is used in spring operating means and connection, and they are made mechanical movement, therefore operation The free degree of device in the design on configuration direction and the installation direction is very high, can accomplish compact establishing Count, and can realize miniaturization and the rationalization of gas-insulated switchgear device integral body of the present invention.
Claims (4)
1. control apparatus for gas insulated switchgear, described gas-insulated switchgear device has failure of current device or the circuit engaging means that are made of the fixed contact and the movable contact that contacts with described fixed contact that are arranged in the grounding container that has injected insulating gas
Control apparatus for gas insulated switchgear is characterised in that,
Separately and independently constitute spring operation means unit and apply device unit respectively, described spring operation means unit is used for described movable contact is driven to cutting direction, and described apply device unit is used for described movable contact is driven to connecting direction.
2. control apparatus for gas insulated switchgear as claimed in claim 1 is characterized in that, described spring operation means unit interconnects by being connected with unit and main shifter lever with the apply device unit.
3. control apparatus for gas insulated switchgear as claimed in claim 1 or 2, it is characterized in that, in the ON Action of finishing described apply device unit, also finish the storage of the driving energy of described spring operation means unit, and by discharging the drive source of described apply device unit automatically, be high-pressure work oil, so that described apply device unit forfeiture actuating force.
4. control apparatus for gas insulated switchgear as claimed in claim 1 or 2, it is characterized in that, helical spring or disk spring drive source as the spring operation means unit, and utilize the accumulator of compressed air energy or have helical spring or the accumulator of disk spring as the drive source of apply device unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020060034360 | 2006-04-17 | ||
| KR1020060034360A KR100770099B1 (en) | 2006-04-17 | 2006-04-17 | Manipulators for gas insulated switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101060234A true CN101060234A (en) | 2007-10-24 |
Family
ID=38759214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101378840A Pending CN101060234A (en) | 2006-04-17 | 2006-11-08 | Control apparatus for gas insulated switchgear |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4956115B2 (en) |
| KR (1) | KR100770099B1 (en) |
| CN (1) | CN101060234A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103907168A (en) * | 2011-10-21 | 2014-07-02 | 株式会社东芝 | Gas circuit breaker |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643764B (en) * | 2017-10-20 | 2020-06-02 | 中国人民解放军海军航空大学 | Obstacle avoidance method of unmanned aerial vehicle based on double-rotation Lyapunov vector field |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01296521A (en) * | 1988-05-23 | 1989-11-29 | Meidensha Corp | Operating device for switch section |
| JPH01296522A (en) * | 1988-05-24 | 1989-11-29 | Meidensha Corp | Operating device for switch section |
| JPH0487125A (en) * | 1990-07-27 | 1992-03-19 | Hitachi Ltd | Operating device for breaker |
| JPH05242774A (en) * | 1992-02-27 | 1993-09-21 | Toshiba Corp | Puffer type gas-blast circuit breaker with resistance |
| JP2002313195A (en) | 2001-04-13 | 2002-10-25 | Hitachi Ltd | Power circuit breaker |
| KR100390798B1 (en) * | 2001-06-26 | 2003-07-12 | 엘지산전 주식회사 | Close locking safety apparatus for circuit breaker |
| JP3861629B2 (en) * | 2001-07-23 | 2006-12-20 | 株式会社日立製作所 | Gas insulated switchgear |
-
2006
- 2006-04-17 KR KR1020060034360A patent/KR100770099B1/en active Active
- 2006-09-22 JP JP2006257718A patent/JP4956115B2/en not_active Expired - Fee Related
- 2006-11-08 CN CNA2006101378840A patent/CN101060234A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103907168A (en) * | 2011-10-21 | 2014-07-02 | 株式会社东芝 | Gas circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4956115B2 (en) | 2012-06-20 |
| KR20070102766A (en) | 2007-10-22 |
| KR100770099B1 (en) | 2007-10-24 |
| JP2007287651A (en) | 2007-11-01 |
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