CN212572434U - High-voltage electro-hydraulic rheostatic starter capable of overload protection - Google Patents
High-voltage electro-hydraulic rheostatic starter capable of overload protection Download PDFInfo
- Publication number
- CN212572434U CN212572434U CN202021724122.2U CN202021724122U CN212572434U CN 212572434 U CN212572434 U CN 212572434U CN 202021724122 U CN202021724122 U CN 202021724122U CN 212572434 U CN212572434 U CN 212572434U
- Authority
- CN
- China
- Prior art keywords
- electrode plate
- water tank
- overload protection
- hydraulic
- insulating water
- 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.)
- Active
Links
Images
Landscapes
- Control Of Water Turbines (AREA)
Abstract
The utility model discloses a high-voltage electro-hydraulic rheostat starter capable of overload protection, which comprises an insulating water tank, wherein the left side of the insulating water tank is fixedly connected with a water inlet pipe, the inside of the insulating water tank is provided with electro-hydraulic fluid, the upper end of the water inlet pipe is provided with a water pump, the left side of the water pump is provided with a solenoid valve on the water inlet pipe, the inside of the insulating water tank is provided with a movable electrode plate and a fixed electrode plate, the lower ends of the movable electrode plate and the fixed electrode plate are inserted into the electro-hydraulic fluid in the insulating water tank, the upper sides of the movable electrode plate and the fixed electrode plate are connected with an overload protection device through wires, the upper end of the overload protection device is connected with a motor, the upper end of the movable electrode plate is fixedly arranged at the bottom of a mounting plate through, and can eliminate the internal high temperature and realize the function of automatic water feeding.
Description
Technical Field
The utility model belongs to the technical field of high-tension electricity liquid varistor starter, specifically be a high-tension electricity liquid varistor starter that can overload protection.
Background
The principle of the electric high-voltage liquid resistance starting device is that a liquid resistance is connected in series in a motor stator loop, when the motor is started, the liquid resistance is gradually reduced, so that the voltage and the rotating speed of the motor stator are stably increased, and when the motor reaches the rated rotating speed, the liquid resistance is cut off, so that the purpose of starting the motor in a voltage reduction mode is achieved. The change of the liquid resistor is realized by the change of the action of the liquid resistor box polar plate through a mechanism, namely, the distance between two polar plates is changed through the mechanism, thereby changing the resistance value of the resistor connected in a stator loop in series.
The existing electric high-voltage liquid resistance starting device is likely to operate in an overload mode when being used for a long time, the aging of the electric high-voltage liquid resistance starting device can be accelerated, the service life of the liquid resistance starting device is shortened, the damage caused by overload short circuit of a circuit cannot be effectively protected when the liquid resistance starting device is used, and the practicability is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the problems proposed above, a high-voltage electro-hydraulic varistor starter capable of overload protection is provided.
The utility model adopts the technical scheme as follows: the utility model provides a high-tension electricity liquid varistor starter that can overload protection, includes insulating water tank, insulating water tank left side fixedly connected with inlet tube, the inside electricity liquid that is provided with of insulating water tank, the inlet tube upper end is provided with the water pump, the water pump left side is provided with the solenoid valve on the inlet tube, inside movable electrode board and the fixed electrode board of being equipped with of insulating water tank, the lower extreme of movable electrode board and fixed electrode board is all inserted in the inside electricity liquid of insulating water tank, the upside of movable electrode board and fixed electrode board all links to each other with overload protection device through the electric wire, overload protection device upper end is connected with the motor, movable electrode board upper end is through adapter sleeve fixed mounting in the mounting panel bottom, insulating water tank middle part upper.
In a preferred embodiment, the inside upper end of insulating water tank is provided with the baffle, the baffle is two, three cavitys are cut apart into through two baffles inside the insulating water tank, baffle right side outer wall and insulating water tank left end inner wall are provided with the liquid level detection ware, the liquid level detection ware is a plurality of, and the liquid level detection ware is in on same water flat line.
In a preferred embodiment, the adapter sleeve is made for insulating material, the top of lift frame is provided with the pneumatic cylinder, the below of pneumatic cylinder is provided with the hydraulic stem, and the hydraulic stem runs through lift frame and mounting panel fixed connection, the hydraulic stem is two, and the hydraulic stem is the axisymmetric structure of axle for the mounting panel central axis.
In a preferred embodiment, overload protection device includes fuse, goes up connecting wire and connector lug, the connector lug lower extreme links to each other with the electric wire, the connector lug upper end is connected with last connecting wire, it is connected with the motor to go up the connecting wire, the internal surface middle part fixed mounting of fuse has the fuse.
In a preferred embodiment, the fuse wires are three in number and are fixed to the inner surface of the fuse by nuts.
In a preferred embodiment, the movable electrode plate and the fixed electrode plate have the same shape and size, the initial position of the movable electrode plate is the same as that of the fixed electrode plate, the upper end of the insulating water tank is provided with a through hole, and the lower ends of the movable electrode plate and the fixed electrode plate penetrate through the through hole and are arranged inside the insulating water tank.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses in, it reciprocates to drive the hydraulic stem through the electricity on the pneumatic cylinder, reciprocates through the hydraulic stem and moves the plate electrode up-and-down motion to change the just area between change plate electrode and the fixed electrode board, with the purpose that reaches the liquid resistance value between change plate electrode and the fixed electrode board, realized the function of varistor.
2. The utility model discloses in, if in service the fuse meets short circuit or when the temperature is too high, the fuse-link will be because of the automatic fusing self of heat reason to the outage plays the effect of protection high-tension electricity liquid varistor starter circuit.
3. The utility model discloses in, when the inside water level of insulating water tank was less than the height of liquid level detector, liquid level detector received signal closed through controller control solenoid, in discharging water into insulating water tank through the inlet tube through the water pump, when water is higher than the high back of liquid level detector, the solenoid valve was opened, and the water pump outage adds water and finishes, has realized automatic watered function.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the structure of the overload protection device of the present invention;
fig. 3 is a schematic diagram of a top view structure of the insulated water tank of the present invention.
The labels in the figure are: 1-water inlet pipe, 2-electromagnetic valve, 3-water pump, 4-liquid level detector, 5-insulating water tank, 6-movable electrode plate, 7-lifting frame, 8-hydraulic cylinder, 9-motor, 10-overload protection device, 101-upper connecting wire, 102-fuse, 103-connector lug, 104-fuse wire, 11-hydraulic rod, 12-electric wire, 13-mounting plate, 14-fixed electrode plate, 15-partition plate and 16-through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1-3, a high-voltage electrohydraulic varistor starter capable of overload protection comprises an insulating water tank 5, and is characterized in that: the left side of an insulating water tank 5 is fixedly connected with a water inlet pipe 1, electro-hydraulic liquid is arranged in the insulating water tank 5, a water pump 3 is arranged at the upper end of the water inlet pipe 1, a solenoid valve 2 is arranged on the water inlet pipe 1 at the left side of the water pump 3, water level change in the insulating water tank 5 is sensed by a liquid level detector 4, when the water level in the insulating water tank 5 is lower than the height of the liquid level detector 4, the liquid level detector 4 receives signals, the solenoid valve 2 is controlled to be closed by a PLC (programmable logic controller), the water pump 3 is powered on, water is discharged into the insulating water tank 5 through the water inlet pipe 1 by the water pump 3, after the water is higher than the height of the liquid level detector 4, the solenoid valve 2 is opened, the water pump 3 is powered off, the water adding is finished, the automatic water adding function is realized, a movable, the upper sides of the movable electrode plate 6 and the fixed electrode plate 14 are connected with an overload protection device 10 through electric wires 12, the upper end of the overload protection device 10 is connected with a motor 9, the upper end of the movable electrode plate 6 is fixedly installed at the bottom of the installation plate 13 through a connecting sleeve, a lifting frame 7 is fixedly installed at the upper end of the middle part of the insulating water tank 5, a hydraulic cylinder 8 on the lifting frame 7 is electrified, the hydraulic cylinder 8 is electrified to drive a hydraulic rod 11 to move up and down, the movable electrode plate 6 moves up and down through the hydraulic rod 11, and therefore the facing area between the movable electrode plate 6 and the fixed electrode plate 14 is changed, and the purpose of changing the resistance value of a liquid resistor between the.
It should be noted that, the inside upper end of insulating water tank 5 is provided with baffle 15, and baffle 15 is two, and insulating water tank 5 is inside to be cut apart into three cavity through two baffles 15, and baffle 15 right side outer wall and insulating water tank 5 left end inner wall are provided with level detector 4, and level detector 4 is a plurality of, and a plurality of level detector 4 are in same water flat line.
It should be noted that the connecting sleeve is made of an insulating material, the hydraulic cylinder 8 is arranged above the lifting frame 7, the hydraulic rods 11 are arranged below the hydraulic cylinder 8, the hydraulic rods 11 penetrate through the lifting frame 7 and are fixedly connected with the mounting plate 13, the number of the hydraulic rods 11 is two, and the hydraulic rods 11 are in an axisymmetric structure taking the central axis of the mounting plate 13 as an axis.
It should be noted that the overload protection device 10 includes a fuse 102, a fuse wire 104, an upper connection wire 101 and a connector lug 103, the lower end of the connector lug 103 is connected to the electric wire 12, the upper end of the connector lug 103 is connected to the upper connection wire 101, the upper connection wire 101 is connected to the motor 9, the fuse wire 104 is fixedly installed in the middle of the inner surface of the fuse 102, if the fuse 102 encounters a short circuit or a high temperature, the fuse wire 104 will automatically fuse itself due to heat, thereby cutting off the power, and achieving the effect of protecting the high-voltage electro-hydraulic varistor starter circuit.
It should be noted that the number of the fusible links 104 is three in total, and the fusible links 104 are fixed to the inner surface of the fuse 102 by nuts.
The movable electrode plate 6 and the fixed electrode plate 14 have the same shape and size, the initial position of the movable electrode plate 6 is the same as that of the fixed electrode plate 14, the upper end of the insulating water tank 5 is provided with a through hole 16, and the lower ends of the movable electrode plate 6 and the fixed electrode plate 14 are arranged in the insulating water tank 5 through the through hole 16.
The working principle is as follows: when the variable-resistance liquid resistor is used, firstly, the hydraulic cylinder 8 on the lifting frame 7 is electrified, the hydraulic cylinder 8 is electrified to drive the hydraulic rod 11 to move up and down, the movable electrode plate 6 moves up and down through the hydraulic rod 11, so that the opposite area between the movable electrode plate 6 and the fixed electrode plate 14 is changed, the aim of changing the resistance value of the liquid resistor between the movable electrode plate 6 and the fixed electrode plate 14 is fulfilled, the function of variable resistance is realized, the switch is turned on, the resistance value of the liquid resistor is automatically and steplessly reduced until the resistance value is zero in a preset time, the motor 9 is put into operation, and the liquid resistor is.
Meanwhile, if the fuse 102 encounters a short circuit or has an excessively high temperature during operation, the fuse wire 104 will automatically fuse itself due to heat, thereby cutting off the power supply, and achieving the effect of protecting the high-voltage electro-hydraulic varistor starter circuit.
Through the inside water level variation of liquid level detector 4 sensing insulation water tank 5, when the inside water level of insulation water tank 5 is less than liquid level detector 4's height, liquid level detector 4 received signal, then close through PLC control solenoid valve 2, through 3 electricity on the water pump, water pump 3 is discharged into insulation water tank 5 with water through inlet tube 1, after water is higher than liquid level detector 4's height, solenoid valve 2 is opened, 3 outage of water pump, add water and finish, automatic watered function has been realized.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a can overload protection's high-pressure electricity liquid varistor starter, includes insulating water tank (5), its characterized in that: the left side of the insulating water tank (5) is fixedly connected with a water inlet pipe (1), the insulating water tank (5) is internally provided with electric liquid, a water pump (3) is arranged at the upper end of the water inlet pipe (1), an electromagnetic valve (2) is arranged on the water inlet pipe (1) at the left side of the water pump (3), a movable electrode plate (6) and a fixed electrode plate (14) are arranged in the insulating water tank (5), the lower ends of the movable electrode plate (6) and the fixed electrode plate (14) are inserted into the electric liquid in the insulating water tank (5), the upper sides of the movable electrode plate (6) and the fixed electrode plate (14) are connected with an overload protection device (10) through wires (12), the upper end of the overload protection device (10) is connected with the motor (9), the upper end of the movable electrode plate (6) is fixedly arranged at the bottom of the mounting plate (13) through a connecting sleeve, and a lifting rack (7) is fixedly arranged at the upper end of the middle part of the insulating water tank (5).
2. A high-voltage electro-hydraulic varistor starter capable of overload protection according to claim 1, characterized in that: insulating water tank (5) inside upper end is provided with baffle (15), baffle (15) are two, insulating water tank (5) are inside cuts apart into three cavity through two baffle (15), baffle (15) right side outer wall and insulating water tank (5) left end inner wall are provided with liquid level detector (4), liquid level detector (4) are a plurality of, and a plurality of liquid level detector (4) are in on same water flat line.
3. A high-voltage electro-hydraulic varistor starter capable of overload protection according to claim 1, characterized in that: the adapter sleeve is made for insulating material, the top of elevating rack (7) is provided with pneumatic cylinder (8), the below of pneumatic cylinder (8) is provided with hydraulic stem (11), and hydraulic stem (11) run through elevating rack (7) and mounting panel (13) fixed connection, hydraulic stem (11) are two, and hydraulic stem (11) are the axisymmetric structure of axle for mounting panel (13) the central axis.
4. A high-voltage electro-hydraulic varistor starter capable of overload protection according to claim 1, characterized in that: overload protection device (10) include fuse (102), fuse (104), go up connecting wire (101) and connector lug (103), connector lug (103) lower extreme links to each other with electric wire (12), connector lug (103) upper end is connected with last connecting wire (101), it is connected with motor (9) to go up connecting wire (101), the internal surface middle part fixed mounting of fuse (102) has fuse (104).
5. A high-voltage electro-hydraulic varistor starter capable of overload protection according to claim 4, characterized in that: the number of the fuse wires (104) is three in all, and the fuse wires (104) are fixed on the inner surface of the fuse (102) through nuts.
6. A high-voltage electro-hydraulic varistor starter capable of overload protection according to claim 1, characterized in that: the shape and size of the movable electrode plate (6) and the fixed electrode plate (14) are the same, the initial position of the movable electrode plate (6) is the same as that of the fixed electrode plate (14), a through hole (16) is formed in the upper end of the insulating water tank (5), and the lower ends of the movable electrode plate (6) and the fixed electrode plate (14) penetrate through the through hole (16) and are arranged inside the insulating water tank (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021724122.2U CN212572434U (en) | 2020-08-18 | 2020-08-18 | High-voltage electro-hydraulic rheostatic starter capable of overload protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021724122.2U CN212572434U (en) | 2020-08-18 | 2020-08-18 | High-voltage electro-hydraulic rheostatic starter capable of overload protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212572434U true CN212572434U (en) | 2021-02-19 |
Family
ID=74626493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021724122.2U Active CN212572434U (en) | 2020-08-18 | 2020-08-18 | High-voltage electro-hydraulic rheostatic starter capable of overload protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212572434U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117375326A (en) * | 2023-12-04 | 2024-01-09 | 中山市联星电器制造有限公司 | Overload self-power-off type driving motor |
-
2020
- 2020-08-18 CN CN202021724122.2U patent/CN212572434U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117375326A (en) * | 2023-12-04 | 2024-01-09 | 中山市联星电器制造有限公司 | Overload self-power-off type driving motor |
| CN117375326B (en) * | 2023-12-04 | 2024-02-09 | 中山市联星电器制造有限公司 | Overload self-power-off type driving motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212572434U (en) | High-voltage electro-hydraulic rheostatic starter capable of overload protection | |
| CN203840239U (en) | High pressure liquid water resistance soft starting cabinet water resistance temperature closed-loop control instrument | |
| CN107178909A (en) | High water tank control system and method, device | |
| CN207196955U (en) | High water tank control system and device | |
| CN203310966U (en) | System for testing reliability of load switch | |
| CN2854435Y (en) | Heat-storage energy-saving electric boiler | |
| CN108808499B (en) | A kind of power distribution cabinet of pre- waterproof bubble | |
| CN111025066A (en) | Transformer heating and cooling comprehensive experiment platform and using method thereof | |
| CN115199499A (en) | Solar water pump device for orchard irrigation | |
| CN203325798U (en) | Gas relay for transformer | |
| CN203838570U (en) | Automatic water feeding device used for high-temperature water tank | |
| CN112244697A (en) | Sweeping robot capable of automatically powering off | |
| CN112211166A (en) | Self-adaptive anti-freezing device for gate and heating method | |
| CN221007742U (en) | SPD aging intelligent monitoring management device | |
| CN112172560B (en) | Conversion type charging connector for new energy automobile | |
| CN218122204U (en) | Lithium iron phosphate battery capacity attenuation test device | |
| CN201424667Y (en) | Integration intelligent constant-pressure water supply device | |
| CN202488151U (en) | Intelligent power capacitor | |
| CN214339658U (en) | 10kV distribution lines intelligence reputation drives bird ware | |
| CN202513259U (en) | Cooling storage battery | |
| CN210987613U (en) | Anti-icing feeding bin | |
| CN108258758A (en) | A kind of system and method to be charged by DC/DC converters for 12V intelligent accummulators | |
| CN213627952U (en) | Intelligent automatic water pumping control device for water collecting well | |
| CN210866796U (en) | Multi-functional 10kV box-type substation with intelligent monitoring | |
| CN117810016B (en) | High-voltage emergency breaker structure with state monitoring function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |