CN215010101U - Intelligent drawer type pressure regulating starting device - Google Patents
Intelligent drawer type pressure regulating starting device Download PDFInfo
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- CN215010101U CN215010101U CN202120615827.9U CN202120615827U CN215010101U CN 215010101 U CN215010101 U CN 215010101U CN 202120615827 U CN202120615827 U CN 202120615827U CN 215010101 U CN215010101 U CN 215010101U
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 12
- 239000007858 starting material Substances 0.000 claims abstract description 27
- 230000009466 transformation Effects 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 abstract description 19
- 230000006698 induction Effects 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000002955 isolation Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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Abstract
An intelligent drawer type pressure regulating starting device comprises an intelligent controller and a pressure regulating starting drawer unit. The intelligent controller consists of a host unit and an independent human-computer interface; the host unit comprises an auxiliary power supply board, a main board, a communication board, an alternating current input board and a switching value input/output board; the human-computer interface is an independent unit and is arranged on an instrument door; the host unit and the human-computer interface are connected by a serial cable. The voltage-regulating starting drawer unit comprises an operating switch, a starting switch, a magnetic ring transformation voltage-regulating soft starter, a mutual inductor, a terminal adapter and a control terminal adapter and is installed in a drawer of the GCK cabinet. The magnetic coil conversion voltage regulation soft starter adjusts the coil turn ratio of the primary side and the secondary side of the induction transformer through the magnetic coil conversion unit, so that the secondary output voltage of the induction transformer is changed and is adjusted to be close to the primary input voltage from a set value, and the soft start function of an isolation voltage regulation mode is realized.
Description
Technical Field
The utility model relates to a low pressure three-phase asynchronous motor starting equipment especially relates to an intelligence drawer type pressure regulating starting drive, belongs to motor drive control technical field.
Background
At present, the low-voltage alternating-current induction three-phase asynchronous motor is started by adopting voltage reduction, so that the impact on a power grid when the motor is started is reduced, more devices such as a reactance starting cabinet, a self-coupling voltage reduction starting cabinet, a liquid resistance starting cabinet and the like are applied, the size of the soft starter is larger and an external bypass contactor is arranged, the soft starter is in short circuit through the bypass contactor after the start is completed, the use is inconvenient, the product is inconvenient to match, the size is large after the soft starter is matched, the voltage regulation starting is smaller than the impact of the voltage reduction starting due to the characteristic that the load torque changes along with the rotating speed, the existing voltage regulation starting devices belong to a series voltage regulation principle, and the starting current is larger when a larger starting torque is required. The applicability of the structure and the principle characteristics of the reactance starting cabinet and the self-coupling voltage-reduction starting cabinet is poor, the volume of the liquid resistance starting cabinet is large, the maintenance is difficult, and the like.
Disclosure of Invention
The utility model aims at above-mentioned weak point, provide a small, the structure is exquisite, modularization, interchangeability is strong, operation safe and reliable, long service life, starting current are little, starting torque is big, the overload capacity is strong, no harmonic pollution, do not receive service environment and temperature and geographical position influence, use the brand-new intelligent starting equipment of maintaining convenience.
The utility model discloses use the magnetosphere transform pressure regulating soft starter as the basis, combine microelectronics and microcomputer control technology, power electronics technique, motor control technology to make up integratively.
The utility model discloses a core starting equipment is my department's earlier stage independently research and development's "a magnetic ring transform soft starting device", utilizes electromagnetic induction characteristic, adjusts induction transformer's a secondary side's coil turn ratio through magnetic ring transform unit to change induction transformer's secondary output voltage, make it rise to being close input voltage by the setting value regulation, realize keeping apart the soft start function of pressure regulating mode.
The utility model discloses constitute the structure: the intelligent starting device mainly comprises an intelligent controller and a voltage-regulating starting drawer unit. The intelligent controller consists of two parts, namely a host unit and an independent human-computer interface, wherein the host unit comprises an auxiliary power supply board, a main board, a communication board, an alternating current input board and a switching value input/output (I/O) board. The man-machine interface is an independent unit, is provided with an auxiliary power supply and is arranged on a door plate of a low-pressure chamber of the switch cabinet. The host unit and the human-computer interface are connected by a serial cable.
The voltage-regulating starting drawer unit comprises an operation switch, a starting switch, a magnetic ring transformation voltage-regulating soft starter, a mutual inductor, a terminal adapter and a control terminal adapter.
The utility model discloses with combination mounting such as service switch, starting switch, magnetosphere transform pressure regulating soft starter, mutual-inductor form the pressure regulating and start drawer unit in the drawer of GCK cabinet. The upper end of the drawer is provided with a terminal adapter 1 which is connected with a power supply switch through a copper bar; the lower end of the drawer is provided with a terminal adapter 2 which is connected with a load motor through a cable.
The intelligent controller controls the motor to start, accelerate and limit the current according to a pre-designed program. The intelligent controller automatically receives starting time and starting current, voltage and torque signals when the motor is started, automatically drives and adjusts the output end voltage of the magnetic ring transformation and voltage regulation soft starter, gradually increases the terminal voltage, and when the rotating speed of the motor reaches the rated rotating speed, the intelligent controller sends a starting completion ending command, switches on the running switch, starts the switch to open the switch, and the magnetic ring transformation soft starter quits working.
The utility model has the advantages that:
1. the induction voltage transformation and the voltage regulation starting are combined at one start skillfully, the isolation voltage regulation soft start is realized, the voltage can be regulated during starting, the starting torque is larger, the motor can be started stably and reliably, and no impact is caused to a power grid and the motor;
2. the drawer type structure is exquisite, the volume is small, the interchangeability is strong, the maintenance technology is easy to understand and convenient, and the maintenance cost is low;
3. the volume of the matched existing product is reduced by arranging the operating switch, the starting switch and the current transformer in the drawer;
4. the high-performance and high-reliability operation of the motor is obtained through the micro-electronics and microcomputer control technology and the mutual coordination of all control units, the safe and reliable starting and the intelligent operation control under underload, full load and heavy load are realized, and the energy conservation and economy are realized.
Description of the drawings:
FIG. 1 is a circuit diagram of an embodiment of the present invention;
fig. 2 is a logic circuit diagram of the drawer according to the embodiment of the present invention.
Detailed Description
The invention is described below with reference to the accompanying drawings and examples: the technical solution in the embodiment of the present invention is clearly and completely described with reference to fig. 1 and 2. And switching on a main power switch, switching on a star point contactor in the magnetic coil transformation voltage regulation soft starter to short-circuit a star point of the induction transformer, operating a switching-on button on a human-computer interface of the intelligent controller, switching on a starting switch, starting the magnetic coil transformation voltage regulation soft starter to work at the moment, and starting the motor to run under the output voltage of the magnetic coil transformation voltage regulation soft starter. Meanwhile, the intelligent controller host unit collects current, voltage and torque signals, so that the effective number of turns of an inductance coil in the magnetic coil transformation voltage regulation soft starter is gradually increased, the voltage of an output end is gradually increased along with the increase of the effective number of turns until the terminal voltage of the motor is close to the system voltage, the star point contactor in the magnetic coil transformation voltage regulation soft starter is switched off, the magnetic coil transformation voltage regulation soft starter quits working, the intelligent controller sends out signals to enable the operation switch to be switched on, the switch is switched off, and the motor is started to complete entering into an operation state.
An intelligent drawer type voltage-regulating starting device mainly comprises an intelligent controller and a voltage-regulating starting drawer unit. The intelligent controller consists of two parts, one main unit and one independent man-machine interface, and the main unit includes auxiliary power source, main board, communication board, AC input board and switching value input/output (I/O) board. The man-machine interface is an independent unit, is provided with an auxiliary power supply and is arranged on a door plate of a low-pressure chamber of the switch cabinet. The host unit and the human-computer interface are connected by a serial cable.
The voltage-regulating starting drawer unit comprises an operation switch, a starting switch, a magnetic ring transformation voltage-regulating soft starter, a mutual inductor, a terminal adapter and a control terminal adapter, and is arranged in a drawer of the GCK cabinet reasonably.
The A/B/C three phases are sleeved with mutual inductors for monitoring current and torque, and the mutual inductors are connected to the intelligent controller host unit through wires.
The control terminal adaptor is used as an intelligent controller host unit through a wire and is connected with the voltage-regulating starting drawer unit in a control conversion mode.
The terminal adaptor is divided into a terminal adaptor 1 and a terminal adaptor 2, the terminal adaptor 1 serves as a main power supply input of a voltage-regulating starting drawer unit, the terminal adaptor 2 serves as a motor output, a three-phase power supply is input into a main power supply circuit breaker, and the lower end of the main power supply circuit breaker is connected to one end of the terminal adaptor 1 through a copper bar; the other end of the terminal adapter 1 is simultaneously connected with the upper end of a starting switch and an operation switch through a copper bar, the lower end of the starting switch is connected with a magnetic ring transformation voltage regulation soft starter through the copper bar, the lower end of the magnetic ring transformation voltage regulation soft starter and the lower end of the operation switch are simultaneously connected to the terminal adapter 2, and the other end of the terminal adapter 2 is connected to the motor through a cable.
Before starting up, the intelligent controller carries out voltage detection on the three-phase A/B/C power supply through the voltage detection module, and detects whether the three-phase voltage reaches a set value. When the voltage is lower than 80%, the magnetic coil conversion voltage regulation soft starter can protect the soft starter from being started. When the voltage meeting the set value is connected into the intelligent controller, the intelligent controller outputs the voltage to the display module for display; meanwhile, the intelligent controller can be started after receiving the start permission instruction.
The intelligent controller controls the motor to start, accelerate and limit current according to a pre-designed program, the voltage of the output end of the magnetic coil transformation voltage regulation soft starter is gradually increased along with the increase of the rotating speed of a motor rotor, and the intelligent controller sends a start completion ending command when the rotating speed of the motor reaches a rated rotating speed.
The intelligent controller automatically receives starting time and starting current, voltage and torque signals when the motor is started, automatically drives and adjusts the magnetic ring transformation soft starter to work, gradually increases the terminal voltage, and automatically sends a signal to switch on the running switch after the motor reaches a rated rotating speed, the starting switch is switched off, and the magnetic ring transformation soft starter quits working.
It should be understood that the above is only an embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can combine and modify the present invention with various combinations and modifications of the above technical features, and those skilled in the art can make modifications, variations, equivalents, or use the method of the present invention in other fields to achieve the same effects without departing from the spirit and scope of the present invention, and all such modifications, variations, equivalents, and uses are within the scope of the present invention.
Claims (2)
1. An intelligent drawer type voltage-regulating starting device comprises an intelligent controller and a voltage-regulating starting drawer unit; the method is characterized in that: the intelligent controller consists of two parts, namely a host unit and an independent human-computer interface; the host unit comprises an auxiliary power supply board, a main board, a communication board, an alternating current input board and a switching value input/output I/O board; the human-computer interface is an independent unit, is provided with an auxiliary power supply and is arranged on a door plate of a low-pressure chamber of the switch cabinet; the host unit and the human-computer interface are connected by a serial cable; the voltage-regulating starting drawer unit comprises an operation switch, a starting switch, a magnetic ring transformation voltage-regulating soft starter, a mutual inductor, a terminal adapter and a control terminal adapter and is installed in a drawer of the GCK cabinet.
2. The intelligent drawer-type voltage-regulating starting device as claimed in claim 1, wherein: the terminal adaptor is divided into a terminal adaptor 1 and a terminal adaptor 2, the terminal adaptor 1 is used as an A/B/C three-phase main power supply input of a voltage-regulating starting drawer unit, the terminal adaptor 2 is used as a motor output, the A/B/C three-phase power supply is input into a power supply main circuit breaker, the lower end of the power supply main circuit breaker is connected to one end of the terminal adaptor 1 through a copper bar, and the other end of the terminal adaptor 1 is simultaneously connected with the upper ends of a starting switch and an operation switch through the copper bar; the starting switch lower extreme passes through the copper bar and connects the magnetosphere transform pressure regulating soft starter, and magnetosphere transform pressure regulating soft starter lower extreme and operation switch lower extreme are connected to terminal adaptor 2 simultaneously on, and 2 another cable connections of terminal adaptor are to the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120615827.9U CN215010101U (en) | 2021-03-26 | 2021-03-26 | Intelligent drawer type pressure regulating starting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120615827.9U CN215010101U (en) | 2021-03-26 | 2021-03-26 | Intelligent drawer type pressure regulating starting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215010101U true CN215010101U (en) | 2021-12-03 |
Family
ID=79162789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120615827.9U Expired - Fee Related CN215010101U (en) | 2021-03-26 | 2021-03-26 | Intelligent drawer type pressure regulating starting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215010101U (en) |
-
2021
- 2021-03-26 CN CN202120615827.9U patent/CN215010101U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211203 |