CN2786866Y - High and low voltage heat change resistance starter - Google Patents
High and low voltage heat change resistance starter Download PDFInfo
- Publication number
- CN2786866Y CN2786866Y CN 200520095091 CN200520095091U CN2786866Y CN 2786866 Y CN2786866 Y CN 2786866Y CN 200520095091 CN200520095091 CN 200520095091 CN 200520095091 U CN200520095091 U CN 200520095091U CN 2786866 Y CN2786866 Y CN 2786866Y
- Authority
- CN
- China
- Prior art keywords
- motor
- circuit breaker
- insulation
- join
- contactor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
The utility model provides a high and low voltage heat change resistance starter, which adopts a fixed polar plate and a movable polar plate. An impulse motor is used for dragging, the dragging moment of the polar plate is small, adjusting precision is high, +/-0.01 ohm can be reached, and starting current multiples of a motor is fairly stable. The utility model has the advantages that motor starting is balance, current fluctuation is small, control precision is high, operation and maintenance are convenient, and requirements for starting a motor are satisfied.
Description
Technical field
The utility model relates to a kind of alternating current motor liquid soft starter device, especially is suitable for the control of high-low pressure squirrel cage motor and synchronous motor liquid soft starting.
Background technology
Before the utility model, people design different technical schemes to high-power mouse-cage type and synchronous machine liquid resistance starter, and conclude and get up to be broadly divided into three kinds: a kind of is a movable plate electrode, a fixed plate formula; Another kind is two and decides the utmost point; Also having a kind of is a fixed plate, a moving atomic accent start mode, and above-mentioned liquid resistance starter has played certain positive role to the starting of motor, but still there is certain deficiency in above-mentioned liquid resistance starter; Exist bulky, relatively poor to the ambient temperature adaptive capacity, adopt alternating voltage to drag, the fine motion degree of regulation is not ideal.
Summary of the invention
Existing liquid resistance starter is poor to the ambient temperature adaptive capacity in order to overcome, the unfavorable problem of degree of regulation, the utility model provides a kind of high-low pressure Thermistor Starter, this starter adopts a fixed plate, movable plate electrode (or can adopt two movable plate electrodes according to the power model, drag two pole plates by same screw mandrel) drags with pulse motor, make the pole plate drawing torque little, the degree of regulation height can reach ± 0.01 ohm, can make electric motor starting electric current multiple quite stable.When adopting the starting of height Thermistor Starter, three-phase equilibrium degree height during electric motor starting, current fluctuation is little, the control precision height, operating maintenance is convenient, can satisfy the heavy-duty motor start request better.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of high-low pressure Thermistor Starter, by isolating switch QS1, circuit breaker Q F1, QF2, motor, contactor KM1, variable liquid resistance RF constitute, it is characterized in that: an end and the power supply of isolating switch QS1 join, the other end and circuit breaker Q F1 join, the other end of circuit breaker Q F1 is connected with motor M, the motor M other end and circuit breaker Q F2 join, insert contactor KM1 between motor M and the circuit breaker Q F2, the other end of contactor KM1 is connected with variable liquid resistance RF.
Described variable liquid resistance RF is joined by an end and the temperature-sensitive head (1) of singlechip CPU processor, the other end is connected with 3 pulse motors (13), one end of 3 pulse motors is connected to insulation polished rod (11) respectively, insulation polished rod (11) is meshed with turriform gear (18) with insulation screw mandrel (6), movable plate electrode (7) is connected with movable plate electrode electrode (12) on the bearing (9) by flexible cable (10), fixed plate (5), bearing (8), support plate (9) is fixed together, fixed plate (5) is fixed with deciding plate electrode (3) welding, and switching line (15) is connected with water level switch (14) with nylon rope (15) with buoy (16) respectively.
Described electric liquid water tank (4) is isolated mutually, or is designed to split formula electricity liquid water tank.
Compared with prior art, the utility model adopts pulse motor to drag pole plate, and the pole plate drawing torque is little, makes the suitable balance of three-phase resistance, the degree of regulation height.Can make electric motor starting electric current multiple stable, and have simple in structure, cost is low, the characteristics of convenient operating maintenance, can satisfy the electric motor starting requirement better.
Description of drawings
Below in conjunction with accompanying drawing and enforcement the utility model is further specified.
Fig. 1 is the utility model systematic schematic diagram.
Fig. 2 is a structural representation of the present utility model.
1. temperature-sensitive heads among Fig. 2,2. sensing rod for temperature, 3. decide plate electrode, 4. electric liquid water tank, 5. fixed plate, 6. insulation screw mandrel, 7. movable plate electrode, 8. bearing, 9. support plate, 10. flexible conductor, 11. insulation polished rods, 12. moving plate electrodes, 13. pulse motors, 14. water level switches, 15. switching lines, 16. buoys, 17. cabinets, 18. turriform gears.
Embodiment
In Fig. 1, isolator QS1 one end is connected with power line, another and circuit breaker Q F1 join, one end of the other end of circuit breaker Q F1 and motor M joins, the other end of motor M enters circuit breaker Q F2, insert contactor KM1 between motor M and circuit breaker Q F2, the other end of contactor KM1 and variable liquid resistance RF join.Motor is the Y connection, power supply enters an end of motor threephase stator winding by high-tension motor operating loop QS1, QF1, when the threephase stator winding enters the starting of this device, operating circuit breaker QF2 does not work, power supply hinders (the liquid resistance is provided with a suitable resistance) by three-phase short circuit copper bar by the three-phase liquid of this starter, make motor asterism sealing, send instruction according to the switch cubicle starting time (or starting current requirement) and allow the QF2 adhesive, and KM is disconnected.
In the embodiment shown in Figure 2, variable liquid resistance RF by sensing rod for temperature, decide plate electrode, cabinet, electric liquid water tank, fixed plate, insulation screw mandrel, movable plate electrode, bearing, turriform gear, support plate flexible conductor, insulation polished rod, moving plate electrode, buoy, switching line, water level switch, temperature-sensitive head, singlechip CPU processor and form.One end of singlechip CPU processor and temperature-sensitive head (1) join, the other end of CPU is connected with 3 pulse motors (13), one end of 3 pulse motors is connected to insulation polished rod (11) respectively, insulation polished rod (11) is meshed with the turriform gear with the insulation screw mandrel, cabinet is provided with water level switch, switch joins with lead, and the other end of each switch is connected with buoy respectively with switching line.
R=ρ L/S, the four seasons temperature difference is big, and ρ is with variation of ambient temperature, and resistance is easily drifted about.
The utility model is provided with three electrohydraulic boxes (4), case and case are isolated (also can be designed to the split formula according to power) mutually, by infrared ray temperature-sensitive head (1), detecting variations in temperature parameter that sensing rod for temperature (2) conducts in the liquid sends in the CPU and handles, information after will handling is respectively again given pulse motor (13), pulse motor (13) receives that the instruction back drives polished rod (11) and rotates, and by turriform gear (18) drive insulation screw mandrel (6) rotation, making screw mandrel (6) drive pole plate (7) moves, thereby reach the purpose that changes resistance, after adjustment finishes, pulse motor is lockable when electric motor starting, movable plate electrode (7) is connected with movable plate electrode electrode (12) on the bearing (9) by flexible cable (10), the fixed plate of three phases (5), bearing (8), support plate (9) is fixed together, fixed plate (5) is fixed with deciding plate electrode (3) welding, and water level detecting is linked together with nylon rope (15) and water level switch (14) by buoy (16).
Claims (3)
1. high-low pressure Thermistor Starter, by isolating switch QS1, circuit breaker Q F1, QF2, motor, contactor KM1, variable liquid resistance RF constitute, it is characterized in that: an end and the power supply of isolating switch QS1 join, the other end and circuit breaker Q F1 join, and the other end of circuit breaker Q F1 is connected with motor M, and the motor M other end and circuit breaker Q F2 join, insert contactor KM1 between motor M and the circuit breaker Q F2, the other end of contactor KM1 is connected with variable liquid resistance RF.
2. a kind of high-low pressure Thermistor Starter according to claim 1, its feature is levied and is: variable liquid resistance RF is joined by an end and the temperature-sensitive head (1) of singlechip CPU processor, the other end is connected with 3 pulse motors (13), one end of 3 pulse motors is connected to insulation polished rod (11) respectively, insulation polished rod (11) is meshed with turriform gear (18) with insulation screw mandrel (6), movable plate electrode (7) is connected with moving plate electrode (12) on the bearing (9) by flexible cable (10), fixed plate (5), bearing (8), support plate (9) is fixed together, fixed plate (5) is fixed with deciding plate electrode (3) welding, and switching line (15) is connected with water level switch (14) with nylon rope (15) with buoy (16) respectively.
3. a kind of high-low pressure Thermistor Starter according to claim 1, its feature is levied and is: electric liquid water tank (4) is isolated mutually, or is designed to split formula electricity liquid water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520095091 CN2786866Y (en) | 2005-01-27 | 2005-01-27 | High and low voltage heat change resistance starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520095091 CN2786866Y (en) | 2005-01-27 | 2005-01-27 | High and low voltage heat change resistance starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2786866Y true CN2786866Y (en) | 2006-06-07 |
Family
ID=36775427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520095091 Expired - Fee Related CN2786866Y (en) | 2005-01-27 | 2005-01-27 | High and low voltage heat change resistance starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2786866Y (en) |
-
2005
- 2005-01-27 CN CN 200520095091 patent/CN2786866Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101138379B (en) | Soft ice cream machine with the frequency conversion control function | |
| CN2786866Y (en) | High and low voltage heat change resistance starter | |
| CN101129153B (en) | Soft ice-cream machine with frequency conversion control function | |
| CN2927304Y (en) | Double-gear coaxial rotary switch and its double-motor fan | |
| CN203300353U (en) | Liquid rheostat for low-melting-pint metal reinforced short-circuited connection | |
| CN201213245Y (en) | High-low voltage cage type heat variant fluid blocking soft starter | |
| CN202261124U (en) | High-voltage motor solid soft starting compensation apparatus | |
| CN203481834U (en) | Controlling apparatus for improving power factor of three-phase asynchronous alternating-current motor | |
| CN204681224U (en) | A kind of three-phase permanent brushless motor | |
| CN103312258A (en) | Motor control system and method | |
| CN200944344Y (en) | On-load regulating capacitor transformer | |
| CN203706524U (en) | Simple and practical experiment device for direct-current motor | |
| CN208368370U (en) | Horizontal loaded capacity regulating voltage regulating tap switch | |
| CN200990332Y (en) | Multichannel permanent magnetic operating mechanism intelligent synchronous controlling device | |
| CN2585484Y (en) | Water rheostat soft starting device for pump motor | |
| CN2562486Y (en) | Polarity changeable double speed single phase asynchronous motor | |
| CN108501731A (en) | A kind of brake energy recovering system and energy-saving automobile | |
| CN104377927A (en) | Three-speed three-phase asynchronous motor for tower crane and tower crane | |
| CN200962525Y (en) | Dynamic compensation controller of the coiling electromotor power factor | |
| CN204271957U (en) | A kind of circuit structure on monophase machine | |
| CN103475111B (en) | A kind of motor | |
| CN2238505Y (en) | Liquid variable resistance voltage reducing starter for squirrel-cage motor | |
| CN2535965Y (en) | Double-power energy-saving motor | |
| CN201656865U (en) | Comprehensive compensation soft start device for winding motor | |
| CN202616954U (en) | Dish-type compound multi-combination three-dimensional permanent magnet motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |