CN201549890U - Magnet valve controlled arc suppression coil - Google Patents
Magnet valve controlled arc suppression coil Download PDFInfo
- Publication number
- CN201549890U CN201549890U CN200920203998XU CN200920203998U CN201549890U CN 201549890 U CN201549890 U CN 201549890U CN 200920203998X U CN200920203998X U CN 200920203998XU CN 200920203998 U CN200920203998 U CN 200920203998U CN 201549890 U CN201549890 U CN 201549890U
- Authority
- CN
- China
- Prior art keywords
- iron core
- arc suppression
- suppression coil
- column
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Rectifiers (AREA)
Abstract
The utility model discloses a magnet valve controlled arc suppression coil which is a conjugated triplex column iron core formed by an upper main iron core column and a lower main iron core column and two upper side column iron cores and two lower side column iron cores, wherein the main iron core columns are respectively wound with a winding; two controlled silicons are connected to the taps of the upper coil and the lower coil; and the iron cores of the two main iron core columns are provided with a plurality of stages of sections. The direct current control current is provided after self-coupling transformation of voltages at two ends of the arc suppression coil and silicon controlled rectifier, an independent high-capacity direct current excitation source is not needed, the voltage current characteristic of the arc suppression coil is ensured to have good linearity, as the iron cores of the upper column and the lower column are provided with a plurality of stages of saturable small sections, the two side column iron cores are not saturable, thus leading the harmonic wave of the magnet valve controlled arc suppression coil to be minimum, improving the compensatory accuracy and effectiveness, and having fast response speed, extremely high reliability, wide stepless capacity adjusting range, low noise, durability, free of maintenance, compact overall structure, novel and beautiful appearance, and convenient and fast wiring.
Description
Technical field
The utility model relates to the protective device that disposes in the electrical network, is the arc suppression coil with the continuous adjustable function of inductance specifically.
Background technology
Along with developing rapidly of industrial or agricultural, the continuous expansion of power network is extended, the single phase ground fault capacitance current is increasing, when single phase ground fault took place, electric arc can not extinguish automatically, so that this class power distribution network often takes place because the overvoltage that intermittent electric arc produces, the phase fault tripping operation, device damage is frequent, the user is frequently had a power failure, even develop into the adverse consequences of large-area power-cuts.Domestic widely-used arc suppression coil is regulated inductance, to satisfy under the different running statuses of electrical network taking off the requirement of humorous degree.
Existing arc suppression coil mainly is divided three classes by the difference that changes the inductance value method:
1. arc suppression coil tap or the adjustable number of turn (inductance can not be adjustable continuously) is arranged;
2. the arc suppression coil of adjustable air gap (inductance is adjustable continuously);
3. D.C. magnetic biasing is transferred sense arc suppression coil (inductance is adjustable continuously).
Above-mentioned first kind arc suppression coil owing to its inductance can not be regulated continuously, thereby is difficult to realize automatic accurate tracking building-out capacitor electric current;
Second class is to change gas length by the moving iron core that move to insert coil inside to come the regulating winding inductance, and it is response speed slow (can to tens of seconds) not only, can be malfunctioning because of the dirty mechanical action that causes, and also noise is very big during work;
The 3rd type games does not have mechanical parts, and by Electronic Control, so the reliability height, response speed is fast, but existing product need add long-time magnet excitation power supply, thereby energy consumption is higher, and the output current wave distortion is bigger, and humorous wave height causes the residual flow increase after the compensation.In addition, because it has very strong non-linear voltage-current characteristic, influenced the precision of compensation greatly.
Summary of the invention
The purpose of this utility model is exactly the defective that exists at existing arc suppression coil, a kind of independent excitation power supply that need not is provided, just can adjustable rapidly, continuously, accurate compensation of ground capacitance current, and compact conformation, noise is low, current loss is little, can improve the controlled arc suppression coil of magnetic valve type of power system operation fail safe and reliability.
For finishing the technical scheme that the foregoing invention purpose taked be: the controlled arc suppression coil of a kind of magnetic valve type, it is characterized in that: by two main iron core posts in the middle of up and down and up and down each two side column iron core form three-limb core with conjugation, respectively be wound with a winding on down middle two main iron core posts thereon, two controllable silicons are connected in the tap of lower coil, and the iron core of middle two main iron core posts is shaped on multistage section up and down.
The beneficial effects of the utility model:
1, the controlled arc suppression coil of making according to the utility model of magnetic valve type provides by the arc suppression coil both end voltage DC control electric current behind self coupling transformation, silicon controlled rectifier, need not independent high-capacity direct current field power supply, can guarantee that the arc suppression coil voltage-current characteristic has good linearty, because two column iron cores have a saturable small bore section up and down, the both sides column iron core is all unsaturated, can make the harmonic wave of the controlled arc suppression coil of magnetic valve type reach minimum, improve the accuracy and the validity of compensation;
2, reliability is high, durable in use, non-maintaining, is not less than useful life 25 years;
3, can be under any abominable network operation environment stable, reliably working such as (as voltage waveform distortion, amplitude fluctuations big);
4, response speed is fast, and be 0.1 second the settling time from the zero load to the rated capacity, can satisfy the requirement of extinguishing arc automatic tracking system fully;
5, (stepless) capacity regulating haves a wide reach continuously, and it is accurate to export perceptual idle numerical value, satisfies the requirement of country to the earth point residual flow fully;
6, iron core adopts vacuum casting method for epoxy resin to form insulating resin layer on iron core, has the low characteristics of noise;
7, the adjustable arc suppression coil compact overall structure of magnetic valve type, good looking appearance, novelty, easy-to-connect is quick.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a circuit interconnect pattern of the present utility model.
Embodiment
Accompanying drawings structure of the present utility model.
The structure of the controlled arc suppression coil of magnetic valve type and circuit connect as shown in Figure 1 and Figure 2.The controlled arc suppression coil of magnetic valve type by two main iron cores 1 in the middle of up and down and up and down each two side column iron core 2 form, on two main iron cores in centre one section (or multistage) small bore is arranged respectively up and down.The small bore area is 1/3 of normal cross section, by Practical Calculation small bore length, is 10～20mm with length, is spaced apart that 40～60mm (heavy in section) is staggered to be distributed on the main iron core.Exchange flux forms the loop by return yoke, and direct current flux is by two main iron core closures.Being wound with total number of turns on each iron core column is two windings 3 up and down of W, and one of them winding has a tap, respectively with controllable silicon 4 thyristor T
1And T
2Link to each other, tapping ratio is σ=W/W
2, W=2W
1Two winding interconnections up and down of different iron cores are connected in parallel to electrical network, and controllable silicon 4 sustained diode are connected across on two crosspoints.
Iron core adopts vacuum casting method for epoxy resin to form insulating resin layer on iron core.
The core section of the controlled arc suppression coil of magnetic valve type has a section of minimizing, in the entire capacity adjustable range, have only one section magnetic circuit of small size saturated, all the other sections all are in the unsaturation linear condition, change the capacity of reactor by the degree of saturation that changes small bore section magnetic circuit, this is the origin of " magnetic valve type " title just.The controlled arc suppression coil of magnetic valve type is development and come on the basis of traditional saturable reactor, saturated different with the full magnetic circuit of saturable reactor, what the controlled arc suppression coil of magnetic valve type adopted is the local magnetic saturation of segmentation, and this has just overcome because the complete saturated noise that brings of magnetic circuit, core loss and harmonic problem.
Be added in the AX two ends of reactor when neutral point of electric network voltage, then induce the voltage (about 2% that accounts for the very little part of AX terminal voltage at the controllable silicon two ends, depend on tapping ratio), two controllable silicons of difference triggering and conducting in a power frequency period of supply voltage, can produce direct current in two groups of coils about symmetrical wiring, the small bore section of two iron core column was saturated in the middle of it made up and down.
By regulating thyristor operating angle, can change the size and the corresponding iron core magnetic saturation of DC control electric current, thereby reach the purpose of regulating the reactor output current.
Claims (1)
1. controlled arc suppression coil of magnetic valve type, it is characterized in that: by two main iron core posts in the middle of up and down and up and down each two side column iron core form three-limb core with conjugation, respectively be wound with a winding on down middle two main iron core posts thereon, two controllable silicons are connected in the tap of lower coil, and the iron core of middle two main iron core posts is shaped on multistage section up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920203998XU CN201549890U (en) | 2009-10-20 | 2009-10-20 | Magnet valve controlled arc suppression coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920203998XU CN201549890U (en) | 2009-10-20 | 2009-10-20 | Magnet valve controlled arc suppression coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201549890U true CN201549890U (en) | 2010-08-11 |
Family
ID=42605071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920203998XU Expired - Fee Related CN201549890U (en) | 2009-10-20 | 2009-10-20 | Magnet valve controlled arc suppression coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201549890U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646497A (en) * | 2012-05-11 | 2012-08-22 | 东莞市科旺科技有限公司 | Common-yoke filter reactor |
| CN104036930A (en) * | 2014-05-29 | 2014-09-10 | 电子科技大学 | Magnetic integration mounting magnetic shielding power inductor |
| CN105575634A (en) * | 2016-03-16 | 2016-05-11 | 江苏万邦节能科技股份有限公司 | Adjustable electric reactor used for controlling electric energy quality |
| CN105656016A (en) * | 2016-03-02 | 2016-06-08 | 国网浙江桐乡市供电公司 | Magnetic-valve-type controllable arc suppression coil structure |
-
2009
- 2009-10-20 CN CN200920203998XU patent/CN201549890U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646497A (en) * | 2012-05-11 | 2012-08-22 | 东莞市科旺科技有限公司 | Common-yoke filter reactor |
| CN102646497B (en) * | 2012-05-11 | 2014-06-18 | 东莞市科旺科技有限公司 | Common-yoke filter reactor |
| CN104036930A (en) * | 2014-05-29 | 2014-09-10 | 电子科技大学 | Magnetic integration mounting magnetic shielding power inductor |
| CN104036930B (en) * | 2014-05-29 | 2016-12-07 | 电子科技大学 | Magnetic integrated attachment magnetic shield power inductor |
| CN105656016A (en) * | 2016-03-02 | 2016-06-08 | 国网浙江桐乡市供电公司 | Magnetic-valve-type controllable arc suppression coil structure |
| CN105575634A (en) * | 2016-03-16 | 2016-05-11 | 江苏万邦节能科技股份有限公司 | Adjustable electric reactor used for controlling electric energy quality |
| CN105575634B (en) * | 2016-03-16 | 2017-05-17 | 江苏万邦节能科技股份有限公司 | Adjustable electric reactor used for controlling electric energy quality |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101521373B (en) | Device and method for limiting short-circuit current | |
| CN201549890U (en) | Magnet valve controlled arc suppression coil | |
| CN103403830A (en) | Current-rise limitation in high-voltage DC systems | |
| CN101609742A (en) | A kind of rapid-response controllable reactor of self-energy-taking | |
| CN107294100B (en) | Flexible alternating-current interconnection device for power distribution network | |
| CN101710698A (en) | Permanent-magnetic AC reactor current restrictor | |
| CN201146386Y (en) | Magnetic valve type continuation adjustable arc-suppression coil | |
| CN101345122B (en) | Direct current flux control type adjustable reactor | |
| CN101291065B (en) | Linear harmonic suppressing apparatus in low voltage distributing network | |
| CN105529694B (en) | Mitigate the saturable core type fault current limiter of direct current impact | |
| CN100424957C (en) | Bias bridge type short circuit current limiter | |
| CN114512971A (en) | Hybrid excitation multifunctional saturated iron core alternating current fault current limiter and current limiting method | |
| CN2424559Y (en) | Device for fast regulating arc-extinguishing coil | |
| CN202906761U (en) | Power supply circuit for high-voltage TSC trigger unit | |
| CN103475293A (en) | Iron core reactance regulator with current control and short-circuit current-limiting functions and control method thereof | |
| CN201263088Y (en) | Epoxy resin pouring magnetic valve type continuous adjustable arc-suppression coil | |
| CN2279028Y (en) | Adjustable arc-extinction winding | |
| CN103187145A (en) | Crossed iron core type controlled reactor | |
| CN102290200B (en) | Controllable saturable reactor | |
| CN207339252U (en) | For quickly changing the transient reactance device of AC network middle impedance value | |
| CN203660523U (en) | Strong coupling type electric power failure current limiter | |
| CN201975797U (en) | Magnetic valve type controllable reactor excitation control device | |
| CN203135452U (en) | High voltage dynamic filter reactive power compensation complete device | |
| CN106158308A (en) | A kind of self coupling power transformer on-load voltage regulation structure cancelling the tertiary winding | |
| CN104505237A (en) | Adjustable reactor based on cross magnetization principle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20171020 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |