CN201656863U - High-voltage AC motor solid soft starting device - Google Patents
High-voltage AC motor solid soft starting device Download PDFInfo
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- CN201656863U CN201656863U CN2010201295356U CN201020129535U CN201656863U CN 201656863 U CN201656863 U CN 201656863U CN 2010201295356 U CN2010201295356 U CN 2010201295356U CN 201020129535 U CN201020129535 U CN 201020129535U CN 201656863 U CN201656863 U CN 201656863U
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- 239000007787 solid Substances 0.000 title claims abstract description 22
- 238000004804 winding Methods 0.000 claims abstract description 125
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 113
- 239000007858 starting material Substances 0.000 claims description 133
- 101100365087 Arabidopsis thaliana SCRA gene Proteins 0.000 claims 1
- 101150105073 SCR1 gene Proteins 0.000 claims 1
- 101100134054 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) NTG1 gene Proteins 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 4
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- 230000000694 effects Effects 0.000 description 3
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- 210000004899 c-terminal region Anatomy 0.000 description 2
- 230000021615 conjugation Effects 0.000 description 2
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- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- 239000011707 mineral Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model relates to a starting device for an AC motor. A high-voltage AC motor solid soft starting device is characterized by comprising an A-phase starting mechanism, a B-phase starting mechanism and a C-phase starting mechanism, wherein both the structures of the B-phase starting mechanism and the C-phase starting mechanism are the same with that of the A-phase starting mechanism; the A-phase starting mechanism comprises a first high-voltage winding, a first iron core, a second high-voltage winding, a third high-voltage winding, a diode, a second iron core, a fourth high-voltage winding, a first thyristor and a second thyristor; an anode of the first thyristor is connected with a first tap, while a cathode thereof is connected with a second tap; an anode of the second thyristor is connected with a fourth tap, while a cathode thereof is connected with a third tap; the head end of the first high-voltage winding is in bridge connection with the head end of the third high-voltage winding to form a common A terminal; and the tail end of the second high-voltage winding is in bridge connection with the tail end of the fourth high-voltage winding to form a common X terminal. The high-voltage AC motor solid soft starting device has the characteristics of high safety and reliability and low cost.
Description
Technical field
The utility model relates to the starting device of alternating current motor, is specifically related to a kind of high voltage motor solid soft start device.
Background technology
At present, 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 controllable silicon technology (particularly high pressure) is a global problem, cost an arm and a leg (be about the utility model technology 8～10 times), should not select for use.The 3rd, the separated exciting magnetic saturation reactor, because theory structure is compared with the utility model technology, 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, the saturated soft starter of self-excitation type magnetic control, its tap mode is made trouble, and consumptive material is many; Influenced by manufacture craft, its security reliability is low, and its performance is subjected to the influence technique of tap position also not very ripe, belongs to first generation self-excitation type magnetic soft starter.
Summary of the invention
The purpose of this utility model is to provide a kind of security reliability height, high voltage motor solid soft start device that cost is low.
For achieving the above object, the technical scheme that the utility model adopted is: high voltage motor solid soft start device, it is characterized in that it comprises A phase starter mechanism, B phase starter mechanism, C phase starter mechanism, the structure of B phase starter mechanism, the C phase starter mechanism all structure with A phase starter mechanism is identical;
Described A phase starter mechanism comprises the first high pressure winding, first iron core, the second high pressure winding, the 3rd high pressure winding, diode, second iron core, the 4th high pressure winding, first thyristor, second thyristor, first iron core and second iron core are arranged in parallel, the first high pressure winding, the second high pressure winding divide inside and outside on first iron core, and the 3rd high pressure winding, the 4th high pressure winding divide inside and outside on second iron core; The first high pressure winding is provided with first tap, and the head end of the second high pressure winding is second tap, and the anode of first thyristor is connected with first tap, and the negative electrode of first thyristor is connected with second tap; The end of the 3rd high pressure winding is the 3rd tap, and the 4th high pressure winding is provided with the 4th tap, and the anode of second thyristor is connected with the 4th tap, and the negative electrode of second thyristor is connected with the 3rd tap; The end of the first high pressure winding is the 5th tap, and the positive pole of diode connects the 5th tap, and the negative pole of diode connects the 3rd tap; The head end of the 4th high pressure winding is the 6th tap, the 6th tap and the 5th tap cross-over connection; The 3rd tap cross-over connection of second tap of the second high pressure winding and the 3rd high pressure winding; The head end of the first high pressure winding becomes common port A end with the head end cross-over connection of the 3rd high pressure winding; The end of the second high pressure winding becomes common port X end with the terminal cross-over connection of the 4th high pressure winding.
Be wound with the 5th winding on first iron core, be wound with the 6th winding on second iron core, the head end cross-over connection of the end of the 5th winding and the 6th winding; The head end of the 5th winding of A phase starter mechanism and the B terminal cross-over connection of the 6th winding of starter mechanism mutually; The head end of the 5th winding of B phase starter mechanism and the C terminal cross-over connection of the 6th winding of starter mechanism mutually; The head end of the 5th winding of C phase starter mechanism and the A terminal cross-over connection of the 6th winding of starter mechanism mutually.
Version has two kinds: a kind of be called split type, i.e. three-phase conjugation not, every loop that has of one's own mutually becomes cabinet separately; A kind of integral type that is called, promptly three phase conjugates are made of one, and make whole cabinet.
Split type: first iron core of A phase starter mechanism, the top of second iron core are provided with yoke, the below of first iron core, second iron core is provided with down yoke, be provided with return yoke between last yoke and the following yoke, the space that first iron core of A phase starter mechanism, second iron core are positioned at yoke, descend yoke, return yoke to be surrounded; First iron core of B phase starter mechanism, the top of second iron core are provided with yoke, the below of first iron core, second iron core is provided with down yoke, be provided with return yoke between last yoke and the following yoke, the space that first iron core of B phase starter mechanism, second iron core are positioned at yoke, descend yoke, return yoke to be surrounded; First iron core of C phase starter mechanism, the top of second iron core are provided with yoke, the below of first iron core, second iron core is provided with down yoke, be provided with return yoke between last yoke and the following yoke, the space that first iron core of C phase starter mechanism, second iron core are positioned at yoke, descend yoke, return yoke to be surrounded.
Integral type: A phase starter mechanism, B phase starter mechanism and the C top of first iron core, second iron core of starter mechanism mutually are provided with a public yoke of going up, the below of first iron core, second iron core is provided with a public down yoke, and A phase starter mechanism, B phase starter mechanism and C first iron core, second iron core of starter mechanism mutually all are positioned at the public space that yoke, public yoke are down formed of going up.
During use, the common port A of A phase starter mechanism end and common port X end, the common port B end of B phase starter mechanism and common port Y end, the common port C end of C phase starter mechanism and common port Z end, the sub-loop of incoming transport motor stator.
During the sub-loop of high voltage motor solid soft start device incoming transport motor stator, adopt following three kinds of connections: the one, high voltage motor solid soft start device serial connection is at the front end of alternating current motor, common port C end (being head end A, B, C) correspondence of the common port A end of A phase starter mechanism, the common port B end of B phase starter mechanism, C phase starter mechanism connects the three-phase high-voltage power supply, the common port Z end of the common port X end of A phase starter mechanism, the common port Y end of B phase starter mechanism, C phase starter mechanism (is terminal X, Y, Z) corresponding incoming transport motor; The 2nd, high voltage motor solid soft start device serial connection is at the end of alternating current motor, common port C end (being head end A, B, C) correspondence of the common port A end of A phase starter mechanism, the common port B end of B phase starter mechanism, C phase starter mechanism connects alternating current motor, the common port Z end of the common port X end of A phase starter mechanism, the common port Y end of B phase starter mechanism, C phase starter mechanism (is terminal X, Y, Z) short circuit is together; The 3rd, high voltage motor solid soft start device serial connection is at the end of alternating current motor, and common port C end (being head end A, B, C) correspondence of the common port B end of the common port A of A phase starter mechanism end, B phase starter mechanism, C phase starter mechanism connects alternating current motor; Simultaneously the common port Y end of starter mechanism is connected mutually, the common port B end of B phase starter mechanism is connected with the common port Z end of C phase starter mechanism, the common port C of C phase starter mechanism holds with the common port X of A phase starter mechanism and holds be connected (promptly adopting delta connection) for the common port A of A phase starter mechanism end and B.
Described high pressure is meant the line voltage that electric pressure 380V is above.
Operation principle of the present utility model is: high voltage motor solid soft start device is connected in series mutually with high voltage motor, be connected on thyristor angle of flow size on the high-voltage alternating tapping by adjusting, the major loop total magnetic flux is changed according to setting, thereby regulate the impedance of high-voltage solid-state soft starter device, change the terminal voltage of alternating current motor, realize the purpose of soft start.
The beneficial effects of the utility model are:
1, iron core of the present utility model and winding immobilize, and the adjustment of its start-up parameters and control are connected on by change that thyristor angle of flow size realizes on the AC Windings.Have good stability, security reliability height, cost is low, cost performance is high characteristics, parameter setting is adjusted flexible, and controllable property is good, and compatible strong (can dock) with any model high-tension switch cabinet is convenient, the automaticity height, the while volume is little, non-maintaining.Use short-cut method, realized regulating the impedance of high-voltage alternating winding with the little Current Control of low pressure.
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 on-the-spot industrial and mineral, be adjusted to the optimum start parameter by being connected the man-machine interface setting that has the human-computer dialogue function on the peripheral PLC control loop of thyristor, 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 PLC, not influenced by environmental change, stability is high.
6, can realize constant current, slope, kick starting by setting.
7, the harmonic component of high voltage motor solid soft start device generation of the present utility model is connected absorption by every phase the 5th winding with the loop that the 6th winding is formed, and has played good filtering effect, and harmonic pollution is little, is lower than national standard.
Description of drawings
Fig. 1 is a single-phase electric principle schematic of the present utility model (every mutually identical).
Fig. 2 is a split type phase structure schematic diagram of the present utility model (every mutually identical).
Fig. 3 is an integral type three-phase structure schematic diagram of the present utility model.
Fig. 4 is the left view of Fig. 3.
Among the figure: the 1-first high pressure winding, 2-first iron core, the 3-second high pressure winding, 4-the 3rd high pressure winding, 5-diode, 6-second iron core, 7-the 4th high pressure winding, 8-the 5th winding, 9-the 6th winding, the last yoke of 10-, yoke under the 11-.
Embodiment
Embodiment 1:
High voltage motor solid soft start device, it comprises A phase starter mechanism, B phase starter mechanism, C phase starter mechanism, the structure of B phase starter mechanism, the C phase starter mechanism all structure with A phase starter mechanism is identical;
As shown in Figure 1, described A phase starter mechanism comprises the first high pressure winding 1, first iron core 2, the second high pressure winding 3, the 3rd high pressure winding 4, diode 5, second iron core 6, the 4th high pressure winding 7, the 5th winding 8, the 6th winding 9, first thyristor, second thyristor, first iron core 2 and second iron core 6 are arranged in parallel, the spacing of first iron core 2 and second iron core 6 is determined according to the motor power (output) size, the first high pressure winding 1, (the first high pressure winding 1 is around first iron core, 2 skins, and the second high pressure winding 3 is around first iron core, 2 internal layers on first iron core 2 inside and outside 3 minutes for the second high pressure winding; The air channel is left in the centre), (the 3rd high pressure winding 4 is around second iron core, 6 internal layers, and the 4th high pressure winding 7 is around second iron core, 6 skins on second iron core 6 inside and outside 7 minutes for the 3rd high pressure winding 4, the 4th high pressure winding; The air channel is left in the centre); The first high pressure winding 1 is provided with the first tap a (in the tap of a place), and the head end of the second high pressure winding 3 is the second tap b, the first thyristor (SCR
1) anode be connected the first thyristor (SCR with the first tap a
1) negative electrode be connected with the second tap b (promptly the first tap a is connected by first thyristor with the second tap b); The end of the 3rd high pressure winding 4 is the 3rd tap c, and the 4th high pressure winding 7 is provided with the 4th tap d (in the tap of d place; According to the position of the concrete parameter designing decision of alternating current motor tap a, tap d, other tap positions are constant), the second thyristor (SCR
2) anode be connected the negative electrode of second thyristor be connected with the 3rd tap c (promptly the 4th tap d is connected by second thyristor with the 3rd tap c) with the 4th tap d; The end of the first high pressure winding 1 is the 5th tap e, and the positive pole of diode (D) 5 meets the 5th tap e, and the negative pole of diode (D) 5 meets the 3rd tap c (promptly the 5th tap e is connected by diode with the 3rd tap c); The head end of the 4th high pressure winding 7 is the 6th tap f, the 6th tap f and the 5th tap e cross-over connection; The 3rd tap c cross-over connection of second tap b of the second high pressure winding 3 and the 3rd high pressure winding 4; The head end of the first high pressure winding 1 becomes common port A end (B starter mechanism mutually is the B end, and C phase starter mechanism is the C end) with the head end cross-over connection of the 3rd high pressure winding 4; The end of the second high pressure winding 3 becomes common port X end (B starter mechanism mutually is the Y end, and C phase starter mechanism is the Z end) with the terminal cross-over connection of the 4th high pressure winding 7.
Be wound with the 5th winding 8 (being positioned at the innermost layer of first iron core 2) on first iron core 2, be wound with the 6th winding 9 (being positioned at the innermost layer of second iron core 6) on second iron core 6, the head end h cross-over connection of the terminal g of the 5th winding 8 and the 6th winding 9 (two-phase is identical in addition); The head end of the 5th winding 8 of each phase starter mechanism with another mutually the end of the 6th winding 9 of starter mechanism join
(end to end).Head end a1 and the B terminal y1 cross-over connection of the 6th winding 9 of starter mechanism mutually as the 5th winding 8 of A phase starter mechanism; The head end b1 of the 5th winding 8 of B phase starter mechanism and the C terminal z1 cross-over connection of the 6th winding 9 of starter mechanism mutually; The head end c1 of the 5th winding 8 of C phase starter mechanism and the A terminal x1 cross-over connection of the 6th winding 9 of starter mechanism mutually.Annotate: use this two winding when only soft starter device is for wye connection.
Present embodiment is split type, i.e. three-phase conjugation not, and every loop that has of one's own mutually becomes the cabinet (see figure 2) separately; First iron core 2 of A phase starter mechanism, the top of second iron core 6 are provided with yoke 10, the below of first iron core 2, second iron core 6 is provided with down yoke 11, be provided with return yoke between last yoke 10 and the following yoke 11, first iron core 2 of A phase starter mechanism, second iron core 6 are positioned at yoke 10, down yoke 11, space that return yoke surrounded; First iron core of B phase starter mechanism, the top of second iron core are provided with yoke, the below of first iron core, second iron core is provided with down yoke, be provided with return yoke between last yoke and the following yoke, the space that first iron core of B phase starter mechanism, second iron core are positioned at yoke, descend yoke, return yoke to be surrounded; First iron core of C phase starter mechanism, the top of second iron core are provided with yoke, the below of first iron core, second iron core is provided with down yoke, be provided with return yoke between last yoke and the following yoke, space (yoke and return yoke formation magnetic loop about around iron core, having that first iron core of C phase starter mechanism, second iron core are positioned at yoke, descend yoke, return yoke to form, avoid leakage field, play magnetic screen and magnetic loop is provided).
During use, the common port A of A phase starter mechanism end and common port X end, the common port B end of B phase starter mechanism and common port Y end, the common port C end of C phase starter mechanism and common port Z end, the loop of incoming transport motor.
During the loop of high voltage motor solid soft start device incoming transport motor, adopt following three kinds of connections:
The one, high voltage motor solid soft start device serial connection is at the front end of alternating current motor, common port C end (being head end A, B, C) correspondence of the common port A end of A phase starter mechanism, the common port B end of B phase starter mechanism, C phase starter mechanism connects the three-phase high-voltage power supply, the common port Z end of the common port X end of A phase starter mechanism, the common port Y end of B phase starter mechanism, C phase starter mechanism (is terminal X, Y, Z) corresponding incoming transport motor.
The 2nd, high voltage motor solid soft start device serial connection is at the end of alternating current motor, common port C end (being head end A, B, C) correspondence of the common port A end of A phase starter mechanism, the common port B end of B phase starter mechanism, C phase starter mechanism connects alternating current motor, the common port Z end of the common port X end of A phase starter mechanism, the common port Y end of B phase starter mechanism, C phase starter mechanism (is terminal X, Y, Z) short circuit together.
The 3rd, high voltage motor solid soft start device serial connection is at the end of alternating current motor, and common port C end (being head end A, B, C) correspondence of the common port B end of the common port A of A phase starter mechanism end, B phase starter mechanism, C phase starter mechanism connects alternating current motor; Simultaneously the common port Y end of starter mechanism is connected mutually, the common port B end of B phase starter mechanism is connected with the common port Z end of C phase starter mechanism, (the common port C of C phase starter mechanism holds to hold with the common port X of A phase starter mechanism and is connected that (promptly adopt delta connection, this kind connection need not the 8th and the 9th winding for the common port A of A phase starter mechanism end and B.)
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 the control of thyristor to angle of flow size.
During motor starting, three groups of high pressure windings of corresponding incoming transport motor circuit, because of 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 AC electrical set end voltage also changes thereupon can realize soft start.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 the control of thyristor to angle of flow size.
Electrical principle structure chart shown in Figure 1 is the single-phase electrical schematic diagram of the A phase in incoming transport motor A, B, the C three-phase loop, and the B phase, the C facies principle is identical does not draw.Diode D plays the afterflow effect.
Embodiment 2:
Substantially the same manner as Example 1, difference is: as shown in Figure 3, Figure 4, be integral type, promptly three phase conjugates are made of one, and make whole cabinet (see figure 3).A phase starter mechanism, B phase starter mechanism and the C top of first iron core, second iron core of starter mechanism mutually are provided with a public yoke of going up, the below of first iron core, second iron core is provided with a public down yoke, and A phase starter mechanism, B phase starter mechanism and C first iron core, second iron core of starter mechanism mutually all are positioned at the public space that yoke, public yoke are down formed of going up.
Shown in Figure 3 and Fig. 2 difference are to be three groups of independence iron cores and winding yoke up and down altogether, and more the material saving reduces cost.
Claims (4)
1. high voltage motor solid soft start device is characterized in that it comprises A phase starter mechanism, B phase starter mechanism, C phase starter mechanism, and the structure of B phase starter mechanism, the C phase starter mechanism all structure with A phase starter mechanism is identical;
Described A phase starter mechanism comprises the first high pressure winding (1), first iron core (2), the second high pressure winding (3), the 3rd high pressure winding (4), diode (5), second iron core (6), the 4th high pressure winding (7), first thyristor (SCR1), second thyristor (SCR2), first iron core (2) is arranged in parallel with second iron core (6), the first high pressure winding (1), the second high pressure winding (3) divide inside and outside on first iron core (2), and the 3rd high pressure winding (4), the 4th high pressure winding (7) divide inside and outside on second iron core (6); The first high pressure winding (1) is provided with first tap (a), and the head end of the second high pressure winding (3) is second tap (b), the first thyristor (SCR
1) anode be connected the first thyristor (SCR with first tap (a)
1) negative electrode be connected with second tap (b); The end of the 3rd high pressure winding (4) is the 3rd tap (c), and the 4th high pressure winding (7) is provided with the 4th tap (d), the second thyristor (SCR
2) anode be connected with the 4th tap (d), the negative electrode of second thyristor is connected with the 3rd tap (c); The end of the first high pressure winding (1) is the 5th tap (e), and the positive pole of diode (5) connects the 5th tap (e), and the negative pole of diode (5) connects the 3rd tap (c); The head end of the 4th high pressure winding (7) is the 6th tap (f), the 6th tap (f) and the 5th tap (e) cross-over connection; The 3rd tap (c) cross-over connection of second tap (b) of the second high pressure winding (3) and the 3rd high pressure winding (4); The head end of the first high pressure winding (1) becomes common port A end with the head end cross-over connection of the 3rd high pressure winding (4); The end of the second high pressure winding (3) becomes common port X end with the terminal cross-over connection of the 4th high pressure winding (7).
2. high voltage motor solid soft start device according to claim 1, it is characterized in that: be wound with the 5th winding (8) on first iron core (2), be wound with the 6th winding (9) on second iron core (6), head end (h) cross-over connection of the end (g) of the 5th winding (8) and the 6th winding (9); The head end (a1) of the 5th winding (8) of A phase starter mechanism and B end (y1) cross-over connection of the 6th winding (9) of starter mechanism mutually; The head end (b1) of the 5th winding (8) of B phase starter mechanism and C end (z1) cross-over connection of the 6th winding (9) of starter mechanism mutually; The head end (c1) of the 5th winding (8) of C phase starter mechanism and A end (x1) cross-over connection of the 6th winding (9) of starter mechanism mutually.
3. high voltage motor solid soft start device according to claim 1, it is characterized in that: first iron core (2) of A phase starter mechanism, the top of second iron core (6) are provided with yoke (10), the below of first iron core (2), second iron core (6) is provided with down yoke (11), be provided with return yoke between last yoke (10) and the following yoke (11), first iron core (2) of A phase starter mechanism, second iron core (6) are positioned at yoke (10), down yoke (11), space that return yoke surrounded;
First iron core of B phase starter mechanism, the top of second iron core are provided with yoke, the below of first iron core, second iron core is provided with down yoke, be provided with return yoke between last yoke and the following yoke, the space that first iron core of B phase starter mechanism, second iron core are positioned at yoke, descend yoke, return yoke to be surrounded;
First iron core of C phase starter mechanism, the top of second iron core are provided with yoke, the below of first iron core, second iron core is provided with down yoke, be provided with return yoke between last yoke and the following yoke, the space that first iron core of C phase starter mechanism, second iron core are positioned at yoke, descend yoke, return yoke to be surrounded.
4. high voltage motor solid soft start device according to claim 1, it is characterized in that: A phase starter mechanism, B phase starter mechanism and the C top of first iron core, second iron core of starter mechanism mutually are provided with a public yoke of going up, the below of first iron core, second iron core is provided with a public down yoke, and A phase starter mechanism, B phase starter mechanism and C first iron core, second iron core of starter mechanism mutually all are positioned at the public space that yoke, public yoke are down formed of going up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201295356U CN201656863U (en) | 2010-03-09 | 2010-03-09 | High-voltage AC motor solid soft starting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201295356U CN201656863U (en) | 2010-03-09 | 2010-03-09 | High-voltage AC motor solid soft starting device |
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| CN201656863U true CN201656863U (en) | 2010-11-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296684A (en) * | 2013-05-24 | 2013-09-11 | 施建权 | Electromagnetic voltage-regulator |
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2010
- 2010-03-09 CN CN2010201295356U patent/CN201656863U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296684A (en) * | 2013-05-24 | 2013-09-11 | 施建权 | Electromagnetic voltage-regulator |
| CN103296684B (en) * | 2013-05-24 | 2015-12-16 | 施建权 | Electromagnetic voltage-regulator |
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Effective date of registration: 20160517 Address after: 430000, 2, aerospace Avenue, Tian Tian Industrial Park, hi tech Zone, Hubei, Xiaogan Patentee after: Hubei Zhengyi Electric Co., Ltd. Address before: 430040 Hubei province Wuhan Dongxihu gold and Silver Lake Road No. 1 Building 2 unit 22 Great Waltz Room 102 Patentee before: Shi Jianquan |
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