CN106449262A - Method for putting closing resistor into ultra-high voltage tank-type circuit breaker - Google Patents
Method for putting closing resistor into ultra-high voltage tank-type circuit breaker Download PDFInfo
- Publication number
- CN106449262A CN106449262A CN201610924943.2A CN201610924943A CN106449262A CN 106449262 A CN106449262 A CN 106449262A CN 201610924943 A CN201610924943 A CN 201610924943A CN 106449262 A CN106449262 A CN 106449262A
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- China
- Prior art keywords
- resistance
- switching
- closing resistor
- closing
- circuit breaker
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Classifications
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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
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/16—Impedances connected with contacts
- H01H33/161—Variable impedances
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention relates to a method for putting a closing resistor into an ultra-high voltage tank-type circuit breaker. The circuit breaker is provided with a closing resistor, the closing resistor is connected with an auxiliary contact QF1 in series and then connected with a main contact QF2 in parallel and the closing resistor is a slide rheostat. The closing comprises the specific steps that the auxiliary contact QF1 is completely closed at first, a sliding contact of the closing resistor is driven to move, the closing resistor is enabled to continuously change from a maximum value to a minimum value 0, the main contact QF2 is enabled to be completely closed at the moment when the closing resistor is 0, the sliding contact of the closing resistor is enabled to slide back to the initial position after the main contact is completely closed, the closing resistor is enabled to turn into the maximum value, and then or simultaneously the auxiliary contact QF1 is enabled to be open so as to get ready for the next time of closing. The thermal capacity of the closing resistor can be utilized to be maximum extent, and the method is safe and reliable. The method provided by the invention is applicable to the ultra-high voltage tank-type circuit breaker or a circuit breaker which is applied to an ultra-high voltage GIS and provided with a closing resistor.
Description
Technical field
The present invention relates to a kind of primary cut-out input for safety technology, put into particularly to a kind of super-pressure potting breaker
The method of switching-on resistance.
Background technology
The basic function of all breakers is all that circuit or load are realized controlling and defencive function.Primary cut-out is not
Only to can close, cut-off load current and short circuit current, and it is very high system can not to be made to produce closing, in interrupting process
Overvoltage, overvoltage can cause very big harm even directly to make system to the insulation of other equipment in system and breaker itself
In other electric equipments insulation breakdown.Although breaker closes the electricity closing during idle load long line for extra high voltage system
Stream less, but can produce very high overvoltage when closing on the line, lead to the insulator chain of circuit to be likely to occur and dodge along face
Network.Therefore the breaker of 330kV and above is needed to limit the overvoltage closing during unloaded long line.This overvoltage
Produced due to vibration, therefore most straightforward approach and at present using be exactly to be limited using switching-on resistance and close
When the overvoltage that produces.The connection figure of the breaker with switching-on resistance as shown in Figure 1, current way is to close QF1 first to throw
Enter switching-on resistance, close master port QF2 after the regular hour again, such main circuit breaker QF2 is with regard to direct short circuit switching-on resistance.
Wish that switching-on resistance is big after closing QF1, the effect of such damped oscillation is good.But in main fracture QF2 short circuit switching-on resistance
Wish that switching-on resistance is little again, otherwise vibrate very serious.
All switching-on resistance is carried in SF6 breaker in present 500kV, 1000kV potting breaker or for GIS,
Using close method as indexed the method that provides of patent.（There is the high-voltage circuit breaker of the switch for accessing switching-on resistance
Inventor：W Louth suddenly;D Suo Luogulun-Sang Checi;T-J Willie;U Colussi;S Ke Dilainan;M Hall
Si Tan;A A Ya;K Qiao Han;M adds West Asia;M triumphant Le application number：200880115109.2 applicant：ABB technology has
Limit company international types：The H01H33/16 date of application：2008.09.05）.The use of this patent makes switching-on resistance access
It is shorted after certain time, short circuit is causing serious transient process.Shake to limit when accessing switching-on resistance in the first stage
The switching-on resistance swinging needs is very big, but needs switching-on resistance very little during second stage short circuit switching-on resistance again, otherwise vibrates very
Seriously.But with this patent and at present reality used in switching-on resistance can only be a value, therefore can only consider
This two stages select to the requirement of switching-on resistance using a switching-on resistance value compromised, the work of switching-on resistance in practice
With being given full play of.This is also the super-pressure potting breaker with switching-on resistance and GIS breaker at present
One problem.Although controlling problem, there is no final solve problem, certain limit reduces insulator chain and damages, but actual
Still there is a certain degree of damage.
Content of the invention
The present invention be directed to primary cut-out puts into the problem existing it is proposed that a kind of super-pressure potting breaker puts into conjunction
The method of lock resistance, continuous access method, is the improvement of the method to switching-on resistance input coefficient.The size overcoming switching-on resistance is subject to
To the problem limiting, fully limit vibration, ensure that the reliability of circuit simultaneously.
The technical scheme is that：A kind of method that super-pressure potting breaker puts into switching-on resistance, with the electricity that closes a floodgate
The breaker of resistance, after switching-on resistance is contacted with auxiliary contact QF1, in parallel with main contact QF2, switching-on resistance is a slip variable resistance
Device, combined floodgate concretely comprises the following steps：After auxiliary contact QF1 is closed first completely, drive the slider setting in motion of switching-on resistance,
Make switching-on resistance continuously become minimum value of zero from maximum, make main contact QF2 of completely closed in switching-on resistance for zero moment simultaneously,
The slider of switching-on resistance is made to slide back to initial position after main contact is of completely closed so that switching-on resistance becomes maximum, so
Auxiliary contact QF1 is made to open afterwards or simultaneously, ready for closing a floodgate next time.
The beneficial effects of the present invention is：The method that super-pressure potting breaker of the present invention puts into switching-on resistance, the method
The thermal capacity that switching-on resistance can be made can be utilized to greatest extent, and safe and reliable.It is applied to super-pressure potting breaker
Or it is used in the breaker with switching-on resistance of super-pressure GIS.
Brief description
Fig. 1 is the breaker connection figure with switching-on resistance；
Fig. 2 is the breaker connection diagram with switching-on resistance for the present invention；
Fig. 3 is the structural representation of switching-on resistance of the present invention；
Fig. 4 is the method action flow chart that super-pressure potting breaker of the present invention puts into switching-on resistance.
Specific embodiment
The breaker connection diagram with switching-on resistance for the present invention as shown in Figure 2, the present invention is with switching-on resistance
Potting breaker or when being closed using breaker in GIS, using the very big switching-on resistance of resistance and auxiliary contact
QF1 contacts, the resistance of the switching-on resistance that diminished by resistance slide continuously linear after closing QF1, reduces in the value of switching-on resistance
Close main fracture QF2 during to zero, so that auxiliary contact QF1 is opened and switching-on resistance resistance is become maximum again.
Maximum switching-on resistance access system is so that system does not vibrate, then even step by step under the drive of mechanism
Reduce switching-on resistance resistance, last switching-on resistance vanishing fastly, at this moment close main contact.So do not cause any in systems
Vibration, the system of reducing closes overvoltage during unloaded long line.
On the basis of original selection using switching-on resistance, increase resistance, conventional switching-on resistance is exactly one by one
Resistor disc is cascaded, as long as increase the resistance resistor disc that increases both may be used more.The structure of the switching-on resistance now using such as Fig. 3 institute
Show.Switching-on resistance includes binding post 1, nut 3, spring expansion joint 4, screw rod 5, several piece resistor disc 6, slider 7, and grooved is led
Rail conductor 8, binding post 9, insulating support rod 10, drive connection part 11 and operating mechanism 12.
By being numbered（1）Arrive（12）Each building block collectively constitute.This resistance is made up of several piece resistor disc 6.Close a floodgate
The several piece resistor disc 6 of resistance, the spring expansion joint 4 of resistor disc outermost one end end and resistor disc outermost other end end
Binding post 1 is linked together with two vertical insulating support rods 10 together, and screw rod 5 passes across insulating support rod, wiring successively
After terminal 1, several piece resistor disc 6, spring expansion joint 4 and insulating support rod, holddown spring is passed through at screw rod 5 two ends and nut 3 is fixing
Connect, by stepping up two ends nut, these parts are tightly locked.The horizontal insulation being shelved on both sides of one grooved guide rail conductor 8 is propped up
Strut upper end, and fixed thereto, in operating mechanism 12, slider 7 is made along grooved guide rail conductor by drive connection part 11
8 move on resistor disc 6 surface, grooved guide rail conductor 8 fix another binding post 9, with the movement of slider 7, wiring
Resistance between terminal 1 and 9 can be from being up to zero, and from the zero to maximum, the resistance between binding post 1 and 9 corresponds to access system
Switching-on resistance true resistance value.Two footing 2 of insulating support rod 10 are reliably fixing with ground.Switching-on resistance is due to there being heat expansion
The spring expansion joint of shrinkage and very big resistor disc of thermal capacity itself and make this switching-on resistance thermal capacity bigger, and close a floodgate
Resistance is variable.
Drive operating mechanism 12, the operating mechanism of auxiliary contact QF1 and the main contact QF2 of switching-on resistance slider 7
Operating mechanism is that same controller controls, shown in the sequence of movement action flow chart as shown in Figure 4 of this three part.Assist when closing
After contact QF1 is closed first completely, then mechanism drives the slider setting in motion of switching-on resistance, makes switching-on resistance continuous
Become minimum value of zero from maximum, make main contact QF2 of completely closed in switching-on resistance for zero moment simultaneously（QF2 moving contact dynamic
Work begins to during slider is mobile, and controlling slider to move to switching-on resistance is just main contact when zero
On of completely closed）.The slider of switching-on resistance is made to slide back to initial position after main contact is of completely closed so that switching-on resistance becomes
Become maximum, so that auxiliary contact QF1 is opened, be so that next combined floodgate is ready.
Claims (1)
1. a kind of method that super-pressure potting breaker puts into switching-on resistance, the breaker with switching-on resistance, switching-on resistance with
After auxiliary contact QF1 series winding, in parallel with main contact QF2 it is characterised in that switching-on resistance is a slide rheostat, close a floodgate specifically
Step is：After auxiliary contact QF1 is closed first completely, drive the slider setting in motion of switching-on resistance, make switching-on resistance
Continuously become minimum value of zero from maximum, make that main contact QF2 is of completely closed simultaneously in switching-on resistance for zero moment, main contact is complete
The slider of switching-on resistance is made to slide back to initial position after closure so that switching-on resistance becomes maximum, then or simultaneously
Auxiliary contact QF1 is opened, ready for closing a floodgate next time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610924943.2A CN106449262A (en) | 2016-10-24 | 2016-10-24 | Method for putting closing resistor into ultra-high voltage tank-type circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610924943.2A CN106449262A (en) | 2016-10-24 | 2016-10-24 | Method for putting closing resistor into ultra-high voltage tank-type circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106449262A true CN106449262A (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610924943.2A Pending CN106449262A (en) | 2016-10-24 | 2016-10-24 | Method for putting closing resistor into ultra-high voltage tank-type circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106449262A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113363107A (en) * | 2021-05-20 | 2021-09-07 | 中电新源(廊坊)电气集团有限公司 | High-voltage switch transformer combined electrical apparatus capable of being switched frequently |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06103856A (en) * | 1992-09-17 | 1994-04-15 | Hitachi Ltd | Gas blast circuit breaker |
| US5304760A (en) * | 1991-10-02 | 1994-04-19 | Gec Alsthom Sa | Ultra-high-tension circuit-breaker |
| CN1097262A (en) * | 1993-07-06 | 1995-01-11 | 郑江 | The contact mechanism of arc-less type high-voltage switch gear |
| CN101855694A (en) * | 2007-09-10 | 2010-10-06 | Abb技术有限公司 | High-voltage power switch with switch for switching on a switching resistor |
-
2016
- 2016-10-24 CN CN201610924943.2A patent/CN106449262A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5304760A (en) * | 1991-10-02 | 1994-04-19 | Gec Alsthom Sa | Ultra-high-tension circuit-breaker |
| JPH06103856A (en) * | 1992-09-17 | 1994-04-15 | Hitachi Ltd | Gas blast circuit breaker |
| CN1097262A (en) * | 1993-07-06 | 1995-01-11 | 郑江 | The contact mechanism of arc-less type high-voltage switch gear |
| CN101855694A (en) * | 2007-09-10 | 2010-10-06 | Abb技术有限公司 | High-voltage power switch with switch for switching on a switching resistor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113363107A (en) * | 2021-05-20 | 2021-09-07 | 中电新源(廊坊)电气集团有限公司 | High-voltage switch transformer combined electrical apparatus capable of being switched frequently |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |
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| RJ01 | Rejection of invention patent application after publication |