CN201091065Y - High voltage motor magnetism shifting and voltage regulating soft starting device - Google Patents
High voltage motor magnetism shifting and voltage regulating soft starting device Download PDFInfo
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- CN201091065Y CN201091065Y CNU2007200627899U CN200720062789U CN201091065Y CN 201091065 Y CN201091065 Y CN 201091065Y CN U2007200627899 U CNU2007200627899 U CN U2007200627899U CN 200720062789 U CN200720062789 U CN 200720062789U CN 201091065 Y CN201091065 Y CN 201091065Y
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- 230000001105 regulatory effect Effects 0.000 title abstract 2
- 230000005389 magnetism Effects 0.000 title 1
- 230000008859 change Effects 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 37
- 230000033228 biological regulation Effects 0.000 claims description 11
- 239000007858 starting material Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 230000007246 mechanism Effects 0.000 abstract description 7
- 238000004804 winding Methods 0.000 abstract description 5
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- 230000008901 benefit Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 230000005284 excitation Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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- 239000010703 silicon Substances 0.000 description 1
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- 230000002277 temperature effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model is named as a high-voltage motor magnetic shift and voltage regulating soft start device, which belongs to the motor drag and control technical field and mainly solves the problems of hard starting performance, easy generation of secondary impacts, great harmonic pollution and high technical difficulty. The device is mainly composed of a group of three-phase air-core coils, a track, three-phase core columns, a transmission mechanism, a control system and a cabinet body. The utility model is characterized in that one end of each phase of the three-phase air-core coils is connected with a working frequency power grid through the startup of the contact of a vacuum contactor, while the other end is connected with an electromotor stator winding. The track is arranged in the air-core coils and the core columns are positioned on the track of the air-core coils; the tail parts of the core columns are integrated as a whole; the positions of the core columns in the coils are changed through the transmission mechanism to change the coil inductance (resistance) value, so that the starting voltage of the electromotor is changed. The utility model has the advantages of small and smooth starting current, no harmonic pollution, no damage and impact on the electromotor, low cost, energy saving and strong overloading ability, which is mainly used for the soft start and soft shutdown of high-voltage motors.
Description
Technical field
The utility model relates to a kind of high-tension motor and moves magnetic pressure regulation soft starter device.Mainly be applicable to be serially connected in the Stator of HV Electromotor loop, carry out the pressure regulation soft start, be specially adapted to more than the 500KW, soft start, the soft stop of 6-10KV high-power high voltage motor.Belong to motor Drag Control field.
Background technology
At present, generally adopt the starting equipment of reactor, though simple in structure as the high-power high voltage motor, but because reactance (impedance) value immobilizes in the starting process, starting characteristic is harder, and easily produces secondary pulse, and apolegamy also can not cause the phenomenon of fail to start at that time.
A kind of solid-state high pressure soft starter device, it is the solid soft start that directly adopts thyristor to carry out pressure regulation in high tension loop, owing to be subjected to the withstand voltage restriction of silicon-controlled device, bad always solution, its reliability is not very high, and user's maintenance technique does not catch up with, and contains a large amount of high order harmonic components in the thyristor output voltage, can damage motor, also can produce harmonic pollution electrical network.Admittedly there is excessive risk, expensive and higher harmonics pollutes, and technical difficulty is big, a little less than the overload capacity, and the problem that maintenance cost is high.
A kind of liquid resistance soft starter device, in high tension loop, the series connection liquid resistance adopts pole plate to move in liquid, changes the pole plate distance, and changes the resistance of liquid, thereby change the starting voltage of motor, and its effect still can.Though cost is low, no-harmonic wave pollution is subjected to environment for use and temperature effect, at high and cold and northern area liquid easy freezing.And in liquid, feed high-tension electricity, dangerous big.Because liquid is corrosive, pole plate and water tank easily are corroded, and liquid evaporates easily, so maintenance workload is big, and the maintenance cost height, useful life is short, and consumes a large amount of active power simultaneously when starting, and energy consumption is big.
A kind of magnetic controlled soft starter product, its adopts three-phase alternating current winding and a DC excitation winding, regulates the magnetic saturation of AC Windings by the size of transfer excitation, reaches the adjustable purpose of starting process.But owing to inject direct current, noise is big, and adjustable range is limited, and harmonic pollution is big, and loss is also big.
Summary of the invention
The purpose of this utility model is exactly to utilize the magnetic field intensity correlation technique of self-induction coil at above-mentioned weak point, provides a kind of high voltage motor that makes that integrated control functions is arranged, and has soft start, soft stop move magnetic pressure regulation soft starter device.
Technical solution of the present utility model is: described a kind of high-tension motor moves magnetic pressure regulation soft starter device, by the starting vacuum contactor, move vacuum contactor, move magnetic regulator, protection system, control system and cabinet and form.Its feature: mainly used and moved the magnetic regulator, this device is made up of one group of three-phase hollow coil, track, iron core column, transmission mechanism and control system.The contact of every phase one end of three-phase hollow coil by the starting vacuum contactor is connected with common frequency power network, and the other end directly is connected with the stator winding of motor.In each hollow coil, a track respectively is set, be seated on the track in each hollow coil with the corresponding iron core column of hollow coil quantity, the iron core column afterbody is an one, the iron core column afterbody is fixed with screw, the screw mandrel that is connected with screw is arranged on the support by the bearing pedestal at two, and the belt pulley at screw mandrel rear portion is connected the control of the controlled system of dragging motor by belt with the belt pulley of dragging motor on being fixed on support.Control system receives the feedback information of main circuit starting current, the instruction dragging motor just, anti-running, by being connected the belt on the dragging motor belt pulley, make screw mandrel belt pulley control screw mandrel and screw, screw drives iron core column and comes and goes mobile in orbit, also can be with screw mandrel, screw, belt pulley, belt and dragging motor change the hydraulic drive cylinder into, hydraulic tube and hydraulic power unit, the hydraulic drive bar of hydraulic drive cylinder is linked the iron core column afterbody, by control system instruction hydraulic power unit, the hydraulic drive bar of control hydraulic drive cylinder drives iron core column and comes and goes mobile in orbit, make iron core column in coil, change the position, and the permeability of magnetizing mediums in the change coil magnetic field, then can change coil magnetic field intensity, the inductive impedance value of coil is changed.According to the voltage divider principle of series circuit, the starting voltage of motor is steadily changed, reach the soft start effect of motor, otherwise can reach fruit of motor soft stop.
The utility model has following advantage:
1, the utility model adopts and changes the position of iron core column in coil, changes the permeability of magnetizing mediums in the coil magnetic field, and changes the technology of coil inductance resistance value.There is not the thyristor technology.The sine wave that has kept common frequency power network, no-harmonic wave pollution does not have any injury influence to motor yet.
2, be not subjected to the influence in environment for use and temperature and geographical position.
3, because by the inductance coil pressure regulation, no active power loss, thereby it is minimum to consume energy, so good energy-conserving effect.
4, simple in structure, to make easily, maintenance technology is understandable easy, and maintenance cost is low.
5, simple to operate, safe and reliable to operation, long service life, overload capacity is strong.
Description of drawings:
Fig. 1 is the utility model electrical schematic diagram;
Fig. 2 is the utility model structural representation;
Fig. 3 is the utility model regulator screw mandrel, screw drive mechanism figure;
Fig. 4 is the utility model regulator hydraulic drive structure chart;
The member name of each figure number is called among the figure: 1; three-phase hollow coil 2; iron core column 3; transmission mechanism 4; track 5; dragging motor 6; control system 7; current transformer 8; starting vacuum contactor 9; operation vacuum contactor 10; high voltage isolator 11; high-tension fuse 12; voltage transformer 13; cabinet 14; protection system 15; move magnetic regulator 16; screw 17; screw mandrel 18; bearing pedestal 19; screw mandrel belt pulley 20; belt 21; dragging motor belt pulley 22; support 23; hydraulic drive cylinder 24; hydraulic drive bar 25; hydraulic tube 26; hydraulic power unit.
The utility model regulator adopts the structure explanation of screw mandrel, screw transmission, and the operation principle explanation: (seeing Fig. 3) is installed on three-phase hollow coil (1) on the support (22), installs in each hollow coil , a track (4), track one section apparatus is in coil, and one section is stretched out outside the coil, and iron core column (2) device exists On the track in each hollow coil (4), the afterbody of iron core column is integrated, and the iron core column afterbody is fixed with screw (16), the screw mandrel that is connected with screw (17) is arranged on the support (22) by the bearing block (18) at two, The belt pulley at screw mandrel rear portion (19) is by belt (20) and the belt pulley that is fixed on the dragging motor on the support (21) connect. Its operation principle is: control system receives the information feedback of main circuit starting current, sends Instruction, the rotating of control dragging motor (5) is by being connected the skin on the dragging motor belt pulley (21) Band (20) makes screw mandrel belt pulley (19) control screw mandrel (17) and screw (16), and screw drives iron core column (2) track in coil (4) comes and goes and moves, and changes the position of iron core column in coil. Because Iron core column has changed the position in coil, then changed the permeability of magnetizing mediums in the coil magnetic figured stone, and changed Coil induction reactance (impedance) value has reached the adjustable soft start effect of starting voltage.
The utility model regulator adopts hydraulicdriven structure explanation, and the operation principle explanation: (seeing Fig. 4) With three-phase hollow coil (1), be installed on the support (22), a device track (4) in each hollow coil, Track one section apparatus is in coil, and one section is stretched out outside the coil, and iron core column (2) is installed in each hollow coil Track (4) on, the afterbody of iron core column is integrated, the iron core column afterbody links hydraulic thrust lever (24), hydraulic pressure Catch bar (24) and hydraulic drive cylinder (23) are integral device, and device is on support (22), and is logical Crossing two hydraulic tubes (25) links with the hydraulic power unit (26) of device on support (22). Its work is former Reason is: control system receives the information feedback of main circuit starting current, sends instruction, control hydraulic power unit (26) Electromagnetic valve action, to making hydraulic drive cylinder (23) work, make hydraulic pressure by two hydraulic tubes (25) Catch bar (24) drives the track (4) of iron core column (2) in coil and comes and goes the shift position. Because iron Stem stem has changed the position in coil, then changed the permeability of magnetizing mediums in the coil magnetic figured stone, and changed line Circle induction reactance (impedance) value has reached the adjustable soft start effect of starting voltage.
Embodiment:
In conjunction with the accompanying drawings and execute the example the utility model is described as follows:
Fig. 1 is one of the present utility model and executes example, connect the AC380V low-voltage control power, control system is started working, instruction dragging motor (5) drives transmission mechanism (3) iron core column (2) is moved to initial bit (promptly all inserting in the coil) automatically, press starting button, starting vacuum contactor (8) closes a floodgate, at this moment, coil inductance (impedance) value is maximum, about dividing potential drop 60%, (if necessary, can design dividing potential drop 75%) starting current is (if necessary, can design starting current is 0.4 times of motor rated current) between 0.7～0.9 times of motor rated current.Current transformer (7) sampling current supply control system (6) sends instruction, dragging motor (5) drives transmission mechanism (3) entry into service, iron core column (2) slowly outwards moves, three-phase hollow coil (1) inductance (impedance) value slowly reduces, and motor starting voltage steadily increases, when iron core column (2) moves on to the terminal point position, leave three-phase hollow coil (1) fully, coil inductance this moment (impedance) value is minimum, divides to be pressed in below 5%, and promptly the voltage that starts to work of motor can reach more than 95%.Can be according to the weight of motor institute driven equipment and the ability to bear of electrical network, the maximum starting current value of adjusting.Starting current is controlled at below the starting current maximum of adjusting, finishes up to starting, when electrical motors arrived rated speed, operation vacuum contactor (9) closed automatically, started successfully, ran well.Three-phase hollow coil (1) becomes bypass, equals to withdraw from.
Claims (3)
1. a high-tension motor moves magnetic pressure regulation soft starter device; mainly form by starting vacuum contactor, operation vacuum contactor, regulator, control system, protection system and cabinet; it is characterized in that: regulator adopts and moves the magnetic pressure regulation method; the three-phase coil of this device is a hollow coil; iron core column is set in hollow coil, and iron core column and hollow coil be the shift position mutually.
2. high-tension motor according to claim 1 moves magnetic pressure regulation soft starter device, it is characterized in that, one group of three-phase coil that regulator is made up of three hollow coils is fixed on the support, a track respectively is set in each hollow coil, be seated on the track in each hollow coil with the corresponding iron core column of hollow coil quantity, the afterbody of iron core column is an one, the iron core column afterbody is fixed with screw, the screw mandrel that is connected with screw is arranged on the support by the bearing pedestal at two, the belt pulley at screw mandrel rear portion, be connected with the belt pulley of dragging motor on being fixed on support by belt, the rotating of control dragging motor by being connected the belt of the belt pulley on the dragging motor, makes screw mandrel belt pulley control screw mandrel and screw, it is round in orbit mobile that screw drives iron core column, and change the position of iron core column in coil.
3. high-tension motor according to claim 1 moves magnetic pressure regulation soft starter device, it is characterized in that, one group of three-phase coil that regulator is made up of three hollow coils is fixed on the support, a track respectively is set in each hollow coil, be seated on the track in each hollow coil with the corresponding iron core column of hollow coil quantity, the afterbody of iron core column is an one, the iron core column afterbody connects the hydraulic drive bar, hydraulic drive bar and hydraulic drive cylinder are integral device, be arranged on the support, be connected with hydraulic power unit on being arranged on support by hydraulic tube, the electromagnetic valve of control hydraulic power unit, it is round in orbit mobile to make hydraulic drive cylinder control hydraulic drive bar drive iron core column, and changes the position of iron core column in coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200627899U CN201091065Y (en) | 2007-03-26 | 2007-03-26 | High voltage motor magnetism shifting and voltage regulating soft starting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200627899U CN201091065Y (en) | 2007-03-26 | 2007-03-26 | High voltage motor magnetism shifting and voltage regulating soft starting device |
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| Publication Number | Publication Date |
|---|---|
| CN201091065Y true CN201091065Y (en) | 2008-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200627899U Expired - Lifetime CN201091065Y (en) | 2007-03-26 | 2007-03-26 | High voltage motor magnetism shifting and voltage regulating soft starting device |
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| Country | Link |
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| CN (1) | CN201091065Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957119A (en) * | 2019-12-28 | 2020-04-03 | 沪工智能科技（苏州）有限公司 | A three-phase filter inductor and arc welding machine |
| CN113612411A (en) * | 2021-07-13 | 2021-11-05 | 湖南科太电气有限公司 | Moving magnet voltage regulating soft starting and positioning device |
| CN117155168A (en) * | 2023-08-15 | 2023-12-01 | 湖南科太科技有限公司 | A dry voltage regulating soft core displacement mechanism |
-
2007
- 2007-03-26 CN CNU2007200627899U patent/CN201091065Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957119A (en) * | 2019-12-28 | 2020-04-03 | 沪工智能科技（苏州）有限公司 | A three-phase filter inductor and arc welding machine |
| CN113612411A (en) * | 2021-07-13 | 2021-11-05 | 湖南科太电气有限公司 | Moving magnet voltage regulating soft starting and positioning device |
| CN113612411B (en) * | 2021-07-13 | 2024-03-08 | 湖南科太电气有限公司 | Magnetic-shift voltage-regulating soft start and positioning device |
| CN117155168A (en) * | 2023-08-15 | 2023-12-01 | 湖南科太科技有限公司 | A dry voltage regulating soft core displacement mechanism |
| CN117155168B (en) * | 2023-08-15 | 2024-11-26 | 湖南科太科技有限公司 | A dry type voltage regulating soft starting iron core displacement mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100827 Address after: 410009, 4 floor, Hunan Electrical Research Institute, No. 004 Xin Zhong Road, Tianxin District, Hunan, Changsha Patentee after: Hunan Ketai Electric Co., Ltd. Address before: 410008 Hunan province Changsha Kaifu District Gongnong Street No. 144 Patentee before: Xie Youshen |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080723 |