CN103296684A - Electromagnetic voltage-regulator - Google Patents
Electromagnetic voltage-regulator Download PDFInfo
- Publication number
- CN103296684A CN103296684A CN2013101992194A CN201310199219A CN103296684A CN 103296684 A CN103296684 A CN 103296684A CN 2013101992194 A CN2013101992194 A CN 2013101992194A CN 201310199219 A CN201310199219 A CN 201310199219A CN 103296684 A CN103296684 A CN 103296684A
- Authority
- CN
- China
- Prior art keywords
- winding
- tap
- regulating device
- phase
- pressure regulating
- 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.)
- Granted
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
An embodiment of the invention discloses an electromagnetic voltage-regulator with a single-phase voltage regulating mechanism. The single-phase voltage regulating mechanism is one of an A-phase voltage regulating mechanism, a B-phase voltage regulating mechanism and a C-phase voltage regulating mechanism which are the same in structure, and comprises a first iron core, a second iron core, a first induction winding, a first high-voltage winding, a second sending winding, a second high-voltage winding, a third induction winding, a third high-voltage winding, a fourth induction winding and a fourth high-voltage winding. The first iron core and the second iron core are in parallel mutually, the first induction winding, the first high-voltage winding, the second induction winding and the second high-voltage winding are wound on the first iron core, and the third induction winding, the third high-voltage winding, the fourth induction winding and the fourth high-voltage winding are wound on the second iron core. The electromagnetic voltage-regulator has the advantages of safety, high reliability and low cost.
Description
Technical field
The present invention relates to a kind of field of electrical equipment, relate in particular to a kind of electromagnetic voltage adjusting device for electric network reactive compensation, alternating current motor soft start.
Background technology
At present, electrical network need be taked reactive power compensator in order to raise the efficiency the reduction reactive power, and the mode that tradition takes electric capacity to add reactor realizes that having level to drop into has the level excision, and compensation effect is poor; If adopt this patent to add the compensation way of electric capacity, then can realize the electrodeless adjusting of electric network active;
Simultaneously, the soft-start by lowering voltage of high voltage motor, the one, adopt liquid soft starting, its starting performance is influenced by ambient temperature big, varying environment temperature starting effect difference, security reliability is low, troublesome maintenance.The 2nd, adopt the thyristor soft start, its security reliability is subjected to the current-sharing of thyristor under the varying environment temperature all to press problems affect, poor stability, and the withstand voltage technology of controllable silicon (particularly high pressure) is a global problem, should not select for use.The 3rd, traditional magnetic saturation reactor, because theory structure, because leakage field is big, its controllable property is not high, and DC power supply need be provided separately, whole cost of investment is higher.The 4th, self-excitation type solid soft start device, its tap is directly extracted from high-tension coil, its security reliability is low, its performance is subjected to the influence technique of tap position, and is also not very ripe, and namely the portion submitted on March 9th, 2010 of the applicant is about " high voltage motor solid soft start device ", application number is 2010201295356, belong to first generation self-excitation type electromagnetic voltage adjusting soft starter device, because all more than volts up to ten thousand, there is very large potential safety hazard in operating voltage.
Summary of the invention
Be connected with described the 4th tap; Described the 5th tap is connected with diode, and the positive pole of described diode is connected with described the 5th tap, and the negative pole of described diode is connected with described the 3rd tap; Described the 6th tap and described the 5th tap cross-over connection; Described second tap and described the 3rd tap cross-over connection;
The head end of the described first high pressure winding is connected with the head end of the 3rd high pressure winding and as first common port; The end of the described second high pressure winding is connected with the end of the 4th sense high pressure winding and as second common port; The head end cross-over connection of the end of the described first high pressure winding and described the 4th high pressure winding, the terminal cross-over connection of the head end of the described second high pressure winding and described the 3rd high pressure winding; The head end of the described first induction winding is connected with the head end of the 3rd induction winding; The end of the described second induction winding is connected with the end of described the 4th induction winding; The head end cross-over connection of the end of the described first induction winding and described the 4th induction winding; The terminal cross-over connection of the head end of the described second induction winding and described the 3rd induction winding;
Described first common port is any one in the C end of B end, C phase pressure regulating device of A end, the B phase pressure regulating device of A phase pressure regulating device; Described second common port is any one in the Z end of Y end, C phase pressure regulating device of X end, the B phase pressure regulating device of A phase pressure regulating device.
For improvement of the technical scheme, comprise three single-phase voltage regulating devices, be specially A phase pressure regulating device, B phase pressure regulating device, C phase pressure regulating device.
For further improvement in the technical proposal, described first iron core is wound with the 5th winding, and described second iron core is wound with the 6th winding; The head end cross-over connection of the end of described the 5th winding and the 6th winding.
For further improvement in the technical proposal, described first iron core and second iron core are positioned at the framework of being made up of last yoke, following yoke and return yoke.
In sum, adopt the technical scheme of electromagnetic voltage adjusting device of the present invention, by excitation is controlled winding not with the high pressure winding on same winding, and on the induction winding that increases, responding to winding simultaneously is the low pressure winding, makes in the controllability and the adjustability that guarantee excitation control winding, and has also reduced current potential and the voltage of excitation winding, guaranteed that finally excitation control winding is stable, worked reliably, also improved the fail safe of excitation control winding.The operation principle of described electromagnetic voltage adjusting device is: the electromagnetic voltage adjusting device inserts known loop, be connected on the thyristor angle of flow size of responding on the interchange tapping by adjusting, make the major loop total magnetic flux require to change according to setting, thereby regulate terminal voltage and the inductance value of electromagnet voltage regulator high pressure winding, thereby change the terminal voltage of the electrical network idle size of perception or alternating current motor, realize reconciling the purpose of electric network reactive-load or alternating current motor soft start.
Implement the embodiment of the invention, have following beneficial effect:
(1) iron core of electromagnetic voltage adjusting device of the present invention and winding immobilize, and the adjustment of its start-up parameters and control are connected on induction by change and exchange that thyristor angle of flow size realizes on the winding.Because thyristor is connected on the induction winding rather than directly extracts out from the high pressure winding, and is isolated with high pressure.Have good stability, security reliability height, produce the characteristics that cost is low, cost performance is high in batches easily, it is flexible that parameter is set adjustment, and controllable property is good, compatible strong (can dock with any model high-tension switch cabinet is convenient), the automaticity height, volume is little, non-maintaining simultaneously.Easy to use, realized regulating with the little Current Control of low pressure the impedance of high-voltage alternating winding;
(2) tap mode is simple and reliable, makes simple;
(3) coupling closely carries magnetic loop, and leakage field is few, controllable property height;
(4) according to field working conditions, be adjusted to optimal parameter by being connected the man-machine interface setting that has the human-computer dialogue function on the peripheral Based Intelligent Control of the thyristor loop, control method is simple, and is easy to operate, and the equipment debugging maintenance cost is low;
(5) adopt the high reliability circuits for triggering of realizing closed-loop control by intelligent controller, not influenced by environmental change, stability is high.
Description of drawings
Fig. 1 is the structural representation of electromagnetic voltage adjusting device of the present invention in embodiment 1;
Fig. 2 is the structural representation of electromagnetic voltage adjusting device of the present invention in embodiment 2;
Fig. 3 is the structural representation of electromagnetic voltage adjusting device of the present invention in embodiment 3;
Fig. 4 is the structural representation of electromagnetic voltage adjusting device of the present invention in embodiment 5.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Embodiment 1:
As shown in Figure 1, electromagnetic voltage adjusting device of the present invention, comprise single-phase voltage regulating mechanism 1, wherein said single-phase voltage regulating mechanism is any one in the identical A phase pressure regulating device of structure, B phase pressure regulating device, the C phase pressure regulating device, and namely the described electromagnetic voltage adjusting device of present embodiment is phase structure, that is to say split-type structural, three-phase is conjugation not, and every loop that has of one's own mutually becomes cabinet separately, use separately, be the most basic unit.Described single-phase voltage regulating mechanism 1 comprises first iron core 101 and second iron core 102 that is arranged parallel to each other, the first induction winding 103 that is around in described first iron core 101, the first high pressure winding 104, second induction winding 105 and the second high pressure winding 106, is around in the 3rd induction winding 107, the 3rd high pressure winding 108, the 4th induction winding 109 and the 4th high pressure winding 110 of described second iron core, 102 1 ends.Compare with respect to prior art, increased by four groups of induction windings: the first induction winding 103, the second induction winding 105, the 3rd induction winding 107 and the 4th induction winding 109.
The middle part of the described first induction winding 103 is provided with first tap 111, and end is provided with the 5th tap 115; First section of the described second induction winding 105 is provided with second tap 112; The end of described the 3rd induction winding 107 is provided with the 3rd tap 113, and the middle part of described the 4th induction winding 109 is provided with the 4th tap 114, and head end is provided with the 6th tap 116; Be connected with first thyristor 117 between described first tap 111 and second tap 112, and the anode of described first thyristor 117 is connected with described first tap 111, the negative electrode of described first thyristor 117 is connected with described second tap 112; Be connected with second thyristor 118 between described the 3rd tap 113 and the 4th tap 114, and the negative electrode of described second thyristor 118 is connected with described the 3rd tap 113, the anode of described second thyristor 118 is connected with described the 4th tap 114; Described the 5th tap 115 is connected with diode 119, and described diode 119 plays the effect of afterflow, and its positive pole is connected with described the 5th tap 115, and negative pole is connected with described the 3rd tap 113; Described the 6th tap 116 and described the 5th tap 115 cross-over connections; Described second tap 112 and described the 3rd tap 113 cross-over connections; The head end cross-over connection of the described first high pressure winding, 104 ends and described the 4th high pressure winding 110, the terminal cross-over connection of the head end of the described second high pressure winding 106 and described the 3rd high pressure winding 108;Can be by regulating the angle of flow size that is connected first thyristor 117 with second tap 112 and passes through second thyristor 118 that the 3rd tap 113 is connected with the 4th tap 114 by first tap 111, make the total magnetic flux of major loop of the circuit that described electromagnetic voltage adjusting device inserts change according to preset requirement, thereby regulate the described first high pressure winding 104, the second high pressure winding 106, terminal voltage and the inductance of the 3rd high pressure winding 108 and the 4th high pressure winding 110, finally make the terminal voltage of the idle size of electrical network perception or alternating current motor, the purpose that has also just realized regulating electric network reactive-load or alternating current motor soft start.
The head end of the described first high pressure winding 104 is connected with the head end of the 3rd high pressure winding 108 and as first common port 120; The end of the described second high pressure winding 106 is connected with the end of the 4th sense high pressure winding 110 and as second common port 121;
The head end cross-over connection of the end of the described first high pressure winding 104 and described the 4th high pressure winding 110, the terminal cross-over connection of the head end of the described second high pressure winding 106 and described the 3rd high pressure winding 108;
The head end of the described first induction winding 103 is connected with the head end of the 3rd induction winding 107; The end of the described second induction winding 105 is connected with the end of described the 4th induction winding 109; The head end cross-over connection of the end of the described first induction winding 103 and described the 4th induction winding 109; The terminal cross-over connection of the head end of the described second induction winding 105 and described the 3rd induction winding 107;
In the C end of the A end that described first common port 120 is A phase pressure regulating device, the B end of B phase pressure regulating device, C phase pressure regulating device any one; In the Z end of the X end that described second common port 121 is A phase pressure regulating device, the Y end of B phase pressure regulating device, C phase pressure regulating device any one.Therefore, described electromagnetic voltage adjusting device then only needs first common port 120 and 121 accesses of second common port are got final product in place in circuit.
Embodiment 2:
As shown in Figure 2, present embodiment then is to have increased by two windings on the basis of embodiment 1, namely be wound with the 5th winding 121 at described first iron core 101, described second iron core 102 is wound with the 6th winding 122, and with the head end cross-over connection of end and the 6th winding 122 of described the 5th winding 121.Described electromagnetic voltage adjusting device adopts this design, makes the harmonic component that produces be connected absorption by the 5th single-phase winding 121 with the loop that the 6th winding is formed, and played good filtering effect, and harmonic pollution is little, is lower than national standard.
Embodiment 3:
As shown in Figure 3, present embodiment then is yoke 123, following yoke 124 and return yoke 125 on the basis of embodiment 1 has increased, the described framework 126 of going up yoke 123, following yoke 124 and a sealing of return yoke 125 compositions, and described first iron core 101 and second iron core 102 are installed in it, thereby form magnetic loop around first iron core 101 that is and second iron core 102, and then avoided leakage field, play magnetic screen and magnetic loop is provided.
Embodiment 4:
Present embodiment then is on the basis of embodiment 1, and three single-phase voltage regulating devices 1 are formed one, forms monolithic construction.
When described electromagnetic voltage adjusting device inserts electrical network, need to compose in parallel the reactive power compensation loop with a group capacitor, specifically can adopt following two kinds of connections:
(1) the corresponding three phase mains that inserts electrical network of common port C end difference of the common port B end of the common port A of A phase pressure regulating device end, B phase pressure regulating device, C phase pressure regulating device, the common port X end of A phase pressure regulating device, the common port Y end of B phase pressure regulating device, the common port Z of C phase pressure regulating device hold short circuit;
(2) the corresponding electrical network three phase mains that inserts of common port C end difference of the common port B end of the common port A of A phase pressure regulating device end, B phase pressure regulating device, C phase pressure regulating device; The common port A end of A phase pressure regulating device is connected with the common port Y end of B phase pressure regulating device simultaneously, the common port B end of B phase pressure regulating device is connected with the common port Z end of C phase pressure regulating device, the common port C end of C phase pressure regulating device is connected with the common port X end of A phase pressure regulating device, i.e. delta connection.
When described electromagnetic voltage adjusting device inserts the electric machine soft starting loop, specifically can adopt following connection:
The common port A of A phase pressure regulating device holds with common port X and holds, hold with common port Y mutually, common port C end and the common port Z of pressure regulating device hold the stator loop of incoming transport motor to C mutually by the common port B end of pressure regulating device for B.
When described electromagnetic voltage adjusting device incoming transport motor circuit, specifically can adopt following three kinds of connections:
(1) described electromagnetic voltage adjusting device is serially connected in the head end of alternating current motor, the common port B end of the common port A of A phase pressure regulating device end, B phase pressure regulating device, the common port C of C phase pressure regulating device hold respectively that correspondence connects the three-phase high-voltage power supply, and the common port X end of A phase pressure regulating device, the common port Y end of B phase pressure regulating device, the common port Z of C phase pressure regulating device hold corresponding incoming transport motor;
(2) described electromagnetic voltage adjusting device is serially connected in the end of alternating current motor, the common port B end of the common port A of A phase pressure regulating device end, B phase pressure regulating device, the common port C of C phase pressure regulating device hold respectively that correspondence connects alternating current motor, the common port Z end of the common port X end of A phase pressure regulating device, the common port Y end of B phase pressure regulating device, C phase pressure regulating device) be shorted together.
(3) described electromagnetic voltage adjusting device is serially connected in the end of alternating current motor, and the common port B end of the common port A of A phase pressure regulating device end, B phase pressure regulating device, the common port C of C phase pressure regulating device hold respectively that correspondence connects alternating current motor; The common port A end of A phase pressure regulating device is connected with the common port Y end of B phase mechanism simultaneously, the common port B end of B phase pressure regulating device is connected with the common port Z end of C phase pressure regulating device, the common port C end of C phase pressure regulating device is connected with the common port X end of A phase mechanism, namely adopt delta connection, this kind connection then need not the 5th winding 121 and the 6th winding 122.
Lead the size of 117 and second thyristor, 11 angles of flow by adjusting first thyristor, adjust the magnetic state of control winding first iron core 101 and second iron core 102, make its saturation controlled by first thyristor 117 and second thyristor, 118 angles of flow, thereby make the induction reactance of the first high pressure winding 104 and the second high pressure winding 106, the 3rd high pressure winding 108 and the 4th high pressure winding 110 be subjected to the control of the angle of flow size of first thyristor 117 and second thyristor 118.
During electromagnet voltage regulator cut-in operation loop, three groups of high pressure windings in corresponding cut-in operation loop, because being subjected to the control of direct current size after the conducting of the thyristor angle of flow, its equivalent inductive reactance automatic stepless changes, and the terminal voltage of described electromagnetic voltage adjusting device also changes thereupon can realize electric network reactive compensation or flexible starter for electric motor.By adjusting the size of the thyristor angle of flow, the magnetic state of control winding iron core makes its saturation controlled by the thyristor angle of flow, thereby makes the induction reactance of high-voltage alternating winding be subjected to thyristor to the control of angle of flow size.
Embodiment 5:
As shown in Figure 4, present embodiment only is with embodiment 4 differences: A phase pressure regulating device, B phase pressure regulating device and three groups of Gongshang's yokes 123 of C phase pressure regulating device, down yoke 124 and return yoke 125, and material saving more, thus also just reduced cost.
Above disclosed is a kind of preferred embodiment of the present invention only, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (4)
1. an electromagnetic voltage adjusting device comprises single-phase voltage regulating mechanism (1), and described single-phase voltage regulating mechanism (1) is any one in the identical A phase pressure regulating device of structure, B phase pressure regulating device, the C phase pressure regulating device, it is characterized in that:
Described single-phase voltage regulating mechanism (1) comprises first iron core (101) and second iron core (102) that is arranged parallel to each other, the first induction winding (103) that is around in described first iron core (101), the first high pressure winding (104), second induction winding (105) and the second high pressure winding (106), is around in the 3rd induction winding (107), the 3rd high pressure winding (108), the 4th induction winding (109) and the 4th high pressure winding (110) of described second iron core (102);
The middle part of the described first induction winding (103) is provided with first tap (111), and end is provided with the 5th tap (115); First section of the described second induction winding (105) is provided with second tap (112); The end of described the 3rd induction winding (107) is provided with the 3rd tap (113), and the middle part of described the 4th induction winding (109) is provided with the 4th tap (114), and head end is provided with the 6th tap (116);
Be connected with first thyristor (117) between described first tap (111) and second tap (112), and the anode of described first thyristor (117) is connected with described first tap (111), and the negative electrode of described first thyristor (117) is connected with described second tap (112);
Be connected with second thyristor (118) between described the 3rd tap (113) and the 4th tap (114), and the negative electrode of described second thyristor (118) is connected with described the 3rd tap (113), and the anode of described second thyristor (118) is connected with described the 4th tap (114);
Described the 5th tap (115) is connected with diode (119), and the positive pole of described diode (119) is connected with described the 5th tap (115), and the negative pole of described diode (119) is connected with described the 3rd tap (113); Described the 6th tap (116) and described the 5th tap (115) cross-over connection; Described second tap (112) and described the 3rd tap (113) cross-over connection;
The head end of the described first high pressure winding (104) is connected with the head end of the 3rd high pressure winding (108) and as first common port (120); The end of the described second high pressure winding (106) is connected and as second common port (121) with the end of the 4th sense high pressure winding (110);
The head end cross-over connection of the end of the described first high pressure winding (104) and described the 4th high pressure winding (110), the terminal cross-over connection of the head end of the described second high pressure winding (106) and described the 3rd high pressure winding (108);
The head end of the described first induction winding (103) is connected with the head end of the 3rd induction winding (107); The end of the described second induction winding (105) is connected with the end of described the 4th induction winding (109); The head end cross-over connection of the end of the described first induction winding (103) and described the 4th induction winding (109); The terminal cross-over connection of the head end of the described second induction winding (105) and described the 3rd induction winding (107);
Described first common port (120) is any one in the C end of B end, C phase pressure regulating device of A end, the B phase pressure regulating device of A phase pressure regulating device;
Described second common port (121) is any one in the Z end of Y end, C phase pressure regulating device of X end, the B phase pressure regulating device of A phase pressure regulating device.
2. electromagnetic voltage adjusting device according to claim 1 is characterized in that;
Comprise three single-phase voltage regulating devices (1), be specially A phase pressure regulating device, B phase pressure regulating device, C phase pressure regulating device.
3. electromagnetic voltage adjusting device according to claim 1 and 2 is characterized in that:
Described first iron core (101) is wound with the 5th winding (121), and described second iron core (102) is wound with the 6th winding (122);
The head end cross-over connection of the end of described the 5th winding (121) and the 6th winding (122).
4. electromagnetic voltage adjusting device according to claim 1 and 2 is characterized in that:
Described first iron core (101) and second iron core (102) are positioned at the framework of being made up of last yoke (123), following yoke (124) and return yoke (125) (126).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310199219.4A CN103296684B (en) | 2013-05-24 | 2013-05-24 | Electromagnetic voltage-regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310199219.4A CN103296684B (en) | 2013-05-24 | 2013-05-24 | Electromagnetic voltage-regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103296684A true CN103296684A (en) | 2013-09-11 |
| CN103296684B CN103296684B (en) | 2015-12-16 |
Family
ID=49097175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310199219.4A Active CN103296684B (en) | 2013-05-24 | 2013-05-24 | Electromagnetic voltage-regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103296684B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035538A (en) * | 2021-03-22 | 2021-06-25 | 赵忠臣 | Static voltage regulator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2224348C2 (en) * | 1998-07-16 | 2004-02-20 | Общество с ограниченной ответственностью Научно-производственная фирма "Особые сварочные агрегаты" | Electrical induction machine |
| CN201656863U (en) * | 2010-03-09 | 2010-11-24 | 施建权 | High-voltage AC motor solid soft starting device |
| CN203522194U (en) * | 2013-05-24 | 2014-04-02 | 施建权 | Electromagnetic voltage regulator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1675868A1 (en) * | 1989-07-19 | 1991-09-07 | Высшее техническое учебное заведение "СевмашВТУЗ" | Induction-type ac voltage regulator |
-
2013
- 2013-05-24 CN CN201310199219.4A patent/CN103296684B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2224348C2 (en) * | 1998-07-16 | 2004-02-20 | Общество с ограниченной ответственностью Научно-производственная фирма "Особые сварочные агрегаты" | Electrical induction machine |
| CN201656863U (en) * | 2010-03-09 | 2010-11-24 | 施建权 | High-voltage AC motor solid soft starting device |
| CN203522194U (en) * | 2013-05-24 | 2014-04-02 | 施建权 | Electromagnetic voltage regulator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035538A (en) * | 2021-03-22 | 2021-06-25 | 赵忠臣 | Static voltage regulator |
| CN113035538B (en) * | 2021-03-22 | 2023-10-20 | 赵忠臣 | Static voltage regulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103296684B (en) | 2015-12-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2009152662A1 (en) | Self power-acquiring quickly responsive controllable electric reactor | |
| CN107294100B (en) | Flexible alternating-current interconnection device for power distribution network | |
| CN203522194U (en) | Electromagnetic voltage regulator | |
| CN103296684B (en) | Electromagnetic voltage-regulator | |
| CN204497043U (en) | The full leakage field of magnetic shunt type reclaims coaxial double winding controllable impedance reactor | |
| CN203481024U (en) | Intelligent voltage-adjusting capacity-adjusting transformer | |
| CN202871541U (en) | Three-phase transformer system and power grid with the same | |
| CN201536336U (en) | Ultra high-power motor soft start device using plurality of multi-pair winding switching transformers at same time | |
| CN200987128Y (en) | High performance controllable inductive reactance AC electric motor initiating means | |
| CN201234144Y (en) | Energy saver for low distribution system | |
| CN201656863U (en) | High-voltage AC motor solid soft starting device | |
| CN210629108U (en) | Wide-width pressure regulating device | |
| CN102545223A (en) | High-voltage dynamic filtering power-saving device for mine | |
| CN201118489Y (en) | High-voltage four-pole single-phase self-excitation soft startup device | |
| CN201378489Y (en) | Double triple-column iron core magnetically controlled reactor with horizontal yoke | |
| CN206789962U (en) | A kind of integrated loaded capacity regulating voltage regulating power distribution station | |
| CN101465543B (en) | Power economizer for low matching system | |
| CN104124905B (en) | A kind of self-coupling voltage reducing compensates integration soft starting device | |
| CN116978680A (en) | Electromagnetic voltage regulator | |
| CN201118490Y (en) | High-voltage electromotor 6-pole three-phase self-excitation magnetic control soft start device | |
| CN208507421U (en) | A kind of grounding transformer with sub-coil | |
| CN2563831Y (en) | Magnetic control soft startor for medium and high voltage large power AC motor | |
| CN116994860A (en) | Novel electromagnetic voltage regulator | |
| CN203026333U (en) | Multifunctional electric power electronic reactor | |
| CN201878068U (en) | Secondary multi-thread duplex winding flow-equalization type electromagnetic pressure-regulating soft starting device |
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: 20160516 Address after: 432100, 2, aerospace Avenue, Tian Tian Industrial Park, hi tech Zone, Hubei, Xiaogan Patentee after: Hubei Zhengyi Electric Co., Ltd. Address before: 430000 No. 89 Han Road, Fancheng, Hubei, Xiangfan Patentee before: Shi Jianquan |