CN201146386Y - Magnetic valve type continuation adjustable arc-suppression coil - Google Patents
Magnetic valve type continuation adjustable arc-suppression coil Download PDFInfo
- Publication number
- CN201146386Y CN201146386Y CNU2008200103690U CN200820010369U CN201146386Y CN 201146386 Y CN201146386 Y CN 201146386Y CN U2008200103690 U CNU2008200103690 U CN U2008200103690U CN 200820010369 U CN200820010369 U CN 200820010369U CN 201146386 Y CN201146386 Y CN 201146386Y
- Authority
- CN
- China
- Prior art keywords
- suppression coil
- iron core
- arc suppression
- magnetic valve
- valve type
- 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 - Lifetime
Links
Images
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
A magnetic valve type continuously adjustable arc suppression coil relates to a four-pole iron core which is composed of two main iron core poles and two side yoke iron core poles, two windings are symmetrically wound on the four-pole iron core, two controlled silicons are connected on taps of the upper and the lower coils, and the middle two main iron core poles are provided with a small cross section. DC control current is provided after the auto-voltage transformation and the controlled silicon rectification by the voltage at the both ends of the arc suppression coil, a separation large-capacity DC excitation power supply is unnecessary, which can ensure the good linearity of the volt-ampere characteristics of the arc suppression coil; as the saturated small cross section is arranged at the middle two iron core poles, the iron core poles at the both sides are not saturated, the harmonic of the magnetic valve type adjustable arc suppression coil can achieve the minimum, thus improving the accuracy and the effectiveness of the compensation. The response speed is rapid, the reliability is very high, an insulated resin layer is arranged on the iron cores; the magnetic valve type continuously adjustable arc suppression coil has little noise, durability and no maintenance; the magnetic valve type continuously adjustable arc suppression coil and the controlled silicon box are integrated, thus having compact overall structure, aesthetic appearance and convenient and rapid wiring.
Description
Technical field
The utility model relates to the protective device that disposes in the electrical network, is the arc suppression coil with automatic following function 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, also 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, 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, humorous wave height, cause the residual flow after the compensation to increase, 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 to provide a kind of magnetic valve type adjustable arc suppression coil at the defective that existing arc suppression coil exists, it need not the independent excitation power supply, just can adjustable rapidly, continuously, accurate compensation of ground capacitance current, and compact conformation, noise is low, current loss is little, can improve the fail safe and the reliability of power system operation.
For finishing the technical scheme that the foregoing invention purpose taked be:
The magnetic valve type CONTINUOUSLY ADJUSTABLE ARC SUPPRESSION COIL is formed four column iron cores by two main iron core posts and two return yoke iron core column, is wound with two windings thereon symmetrically, and two controllable silicons are connected in the tap of lower coil, and middle two post main iron cores have the small bore section.
The core section of the adjustable arc suppression coil of magnetic valve type has one section that reduces, 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 adjustable 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 magnetic valve type is adjustable arc suppression coil 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.
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.
The beneficial effects of the utility model:
The magnetic valve type CONTINUOUSLY ADJUSTABLE ARC SUPPRESSION COIL of making according to the utility model with the DC control electric current by the arc suppression coil both end voltage through behind lotus root transformation, silicon controlled rectifier, providing, need not independent high-capacity direct current field power supply, can guarantee that the arc suppression coil voltage-current characteristic has good linearty, because middle two column iron cores have a saturable small bore section, the both sides column iron core is all unsaturated, can make the harmonic wave of the adjustable 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 0.15 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, magnetic valve type CONTINUOUSLY ADJUSTABLE ARC SUPPRESSION COIL and controllable silicon case are integral type, compact overall structure, and good looking appearance, 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 adjustable arc suppression coil of magnetic valve type and circuit connect as shown in Figure 1 and Figure 2.The adjustable arc suppression coil of magnetic valve type is made up of two main iron cores 1 and two return yoke iron cores 2, and one section (or multistage) small bore is respectively arranged on two main iron cores.The small bore area is 1/3 of normal cross section, by Practical Calculation small bore length, is 10mm with length, is spaced apart that 50mm (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 adjustable arc suppression coil of magnetic valve type is installed in the controllable silicon case.
Claims (1)
1 one kinds of magnetic valve type CONTINUOUSLY ADJUSTABLE ARC SUPPRESSION COIL is characterized in that; Form four column iron cores by two main iron core posts and two return yoke iron core column, be wound with two windings thereon symmetrically, two controllable silicons are connected in the tap of lower coil, and middle two post main iron cores have the small bore section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200103690U CN201146386Y (en) | 2008-01-21 | 2008-01-21 | Magnetic valve type continuation adjustable arc-suppression coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200103690U CN201146386Y (en) | 2008-01-21 | 2008-01-21 | Magnetic valve type continuation adjustable arc-suppression coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201146386Y true CN201146386Y (en) | 2008-11-05 |
Family
ID=40083273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200103690U Expired - Lifetime CN201146386Y (en) | 2008-01-21 | 2008-01-21 | Magnetic valve type continuation adjustable arc-suppression coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201146386Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982970A (en) * | 2012-12-11 | 2013-03-20 | 圣航科技股份有限公司 | Multi-magnetic valve type controllable reactor |
| CN105141140A (en) * | 2015-07-31 | 2015-12-09 | 山东大学 | Improved multi-functional transformer |
| 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 |
-
2008
- 2008-01-21 CN CNU2008200103690U patent/CN201146386Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982970A (en) * | 2012-12-11 | 2013-03-20 | 圣航科技股份有限公司 | Multi-magnetic valve type controllable reactor |
| CN102982970B (en) * | 2012-12-11 | 2015-08-12 | 圣航科技股份有限公司 | A kind of many magnetic valve type controllable reactors |
| CN105141140A (en) * | 2015-07-31 | 2015-12-09 | 山东大学 | Improved multi-functional transformer |
| CN105141140B (en) * | 2015-07-31 | 2017-09-26 | 山东大学 | A kind of improved Multifunction transformer |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2139088B1 (en) | Core-saturated superconductive fault current limiter and control method of the fault current limiter | |
| CN101521373B (en) | Device and method for limiting short-circuit current | |
| CN102982985B (en) | Multi-tap composite excitation type controllable reactor | |
| CN101609742A (en) | A kind of rapid-response controllable reactor of self-energy-taking | |
| CN201549890U (en) | Magnet valve controlled arc suppression coil | |
| CN201146386Y (en) | Magnetic valve type continuation adjustable arc-suppression coil | |
| CN110544931A (en) | earth fault current compensation system and method for self-generating power phase power supply | |
| CN105529694B (en) | Mitigate the saturable core type fault current limiter of direct current impact | |
| CN101345122B (en) | Direct current flux control type adjustable reactor | |
| CN101291065B (en) | Linear harmonic suppressing apparatus in low voltage distributing network | |
| CN114512971A (en) | Hybrid excitation multifunctional saturated iron core alternating current fault current limiter and current limiting method | |
| CN100424957C (en) | Bias bridge type short circuit current limiter | |
| CN2424559Y (en) | Device for fast regulating arc-extinguishing coil | |
| CN103475293A (en) | Iron core reactance regulator with current control and short-circuit current-limiting functions and control method thereof | |
| CN201414000Y (en) | Intelligent controlled electrical pole crossover filtering electricity economizer | |
| CN202906761U (en) | Power supply circuit for high-voltage TSC trigger unit | |
| Yuan et al. | A compact saturated core fault current limiter magnetically integrated with decoupling windings | |
| CN201263088Y (en) | Epoxy resin pouring magnetic valve type continuous adjustable arc-suppression coil | |
| CN203522599U (en) | Iron core reactance regulator having power flow control function and short circuit current limiting function | |
| CN201294382Y (en) | Zero sequence harmonic filtering device for low-pressure system | |
| CN101478152A (en) | Three phase five post direct adjusting inductor type arc-suppression coil | |
| CN102324736A (en) | Magnetron type fault current limiter | |
| CN203660523U (en) | Strong coupling type electric power failure current limiter | |
| CN207339252U (en) | For quickly changing the transient reactance device of AC network middle impedance value | |
| CN112563002A (en) | Split-core type magnetic control intelligent transformer and control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081105 |