CN210074758U - Portable motor control protection device - Google Patents
Portable motor control protection device Download PDFInfo
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- CN210074758U CN210074758U CN201921073447.6U CN201921073447U CN210074758U CN 210074758 U CN210074758 U CN 210074758U CN 201921073447 U CN201921073447 U CN 201921073447U CN 210074758 U CN210074758 U CN 210074758U
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- motor
- acquisition device
- data acquisition
- protection device
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Abstract
The utility model relates to a portable motor control protection device, which comprises a box body and a box cover, wherein a first area and a second area are transversely arranged in the box body, the first area is used for installing a control loop, and the second area is used for installing a motor protector and a control panel; the control loop comprises a motor power supply control loop and a data acquisition device; the control panel is positioned at the top of the second area, and buttons and a display screen are arranged on the control panel; the motor protector is positioned at the bottom of the second area, and is electrically connected with the button and the display screen; the motor protector is also connected with the data acquisition device. The motor protector and the control circuit thereof are all integrated in one box, and the device is very convenient for line access, movement and carrying during use.
Description
Technical Field
The utility model relates to a portable motor control protection device.
Background
An industrial motor needs to be installed and used with a power distribution cabinet, and the motor control protection function is achieved through the power distribution cabinet. The motor control protection functions include: the method comprises the steps of collecting data of the motor, such as voltage, current, power, electric energy and other electric parameters, executing a corresponding protection strategy according to the collected data, and controlling the motor to start, stop and the like.
However, the switch cabinet is heavy and not easy to move, and also comprises a plurality of devices which are irrelevant to the protection function of the motor, and the switch cabinet is very inconvenient to use for the motor which is used independently or needs to be moved frequently.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a portable motor control protection device for solve the awkward problem of switch board.
A portable motor control protection device comprises a box body and a box cover, wherein a first area and a second area are transversely arranged in the box body, the first area is used for installing a control loop, and the second area is used for installing a motor protector and a control panel;
the control loop comprises a motor power supply control loop and a data acquisition device;
the control panel is positioned at the top of the second area, and buttons and a display screen are arranged on the control panel; the motor protector is positioned at the bottom of the second area, and is electrically connected with the button and the display screen; the motor protector is also connected with the data acquisition device.
And a wiring terminal block is arranged between the first area and the second area.
The data acquisition device comprises a voltage acquisition device and a current transformer.
The data acquisition device also comprises a zero sequence current transformer.
The buttons include start, stop, alarm and remote buttons.
The motor protector and the control circuit thereof are all integrated in one box, and the device is very convenient for line access, movement and carrying during use. The data acquisition device can be used for acquiring data of motors of various users, such as voltage, current, power, electric energy and other electric parameters, the display screen can be used for realizing field experiment and demonstration of the motor protector, and further the running condition of the motor can be analyzed through various electric parameters.
Drawings
FIG. 1 is a schematic view of the whole case of the embodiment of the present invention;
FIG. 2 is a top view of the housing of an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a motor protector and control circuit according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of the switching value input part according to the embodiment of the present invention.
Detailed Description
The following description is made with reference to the accompanying drawings.
As shown in figures 1-4, the portable motor control protection device comprises a box body and a box cover, wherein the box cover is hinged on the box body. As shown in fig. 2, the left and right directions are horizontal, a first area and a second area are arranged in the box body along the horizontal direction, the first area is used for installing a control circuit, and the control circuit comprises a motor power supply control circuit and a data acquisition device. The second area is used for mounting the motor protector and the control panel. The control panel is positioned at the top of the second area, and a button B and a display screen A are arranged on the control panel; the motor protector is located at the bottom of the second area, and buttons on the control panel comprise start, stop, alarm and remote buttons. The motor protector is electrically connected with the button and the display screen; the motor protector is also connected with a data acquisition device.
As shown in fig. 2, the first area includes a terminal block C, an air switch D, a motor incoming current transformer E, and a circuit breaker F. Fig. 2 is a schematic diagram, and fig. 3 shows a specific structure of a control circuit, a data acquisition device and a motor protector. L1, L2, L3 are three-phase lines for supplying the motor M, with an air switch QF (i.e. D in fig. 2) and a circuit breaker KM1 (i.e. F in fig. 2) in the lines. The data acquisition device comprises a voltage acquisition device (corresponding to ports 21, 22, 23 and 24 of the motor protector) and a current transformer (corresponding to ports 13 to 18 of the motor protector). The data acquisition device also comprises zero sequence current transformers (corresponding to the 19 and 20 ports of the motor protector) according to requirements.
As shown in fig. 4, the 25-34 ports of the motor protector are used for switching value input, which is, in turn, a start signal input, a general DI input, a stop signal input, a reset signal input, a local button/remote DCS button, an emergency stop input, a drawer test position input, a breaker state input, an external fault input, and a remote new utility terminal. 1ZK is a local/remote switch, and its structure and connection to the motor protector are in the prior art and will not be described herein. The motor protector also comprises analog output interfaces (3, 4) and 485 communication interfaces (1, 2). The 485 communication interface can be used for connecting a display screen. The motor protector also includes a power loss alarm port DO5, a fault output port DO4, a trip breaker port DO3, and two relay ports DO2 and DO 1.
The motor protector is a commercial product.
Since the motor controller is arranged in the second area and the associated control elements (such as circuit breakers and relays) and pick-up elements (such as transformers) are arranged in the second area, a terminal block is arranged between the first area and the second area, which terminal block can also be used for connecting external connections.
In the embodiment, the motor protector and the control circuit thereof are all centralized in one box, and the circuit access and the moving carrying are very convenient during the use. The device of the embodiment is suitable for the motor with rated current less than 100 amperes at present, can provide normal, overcurrent quick-break protection, locked rotor protection, open-phase protection, undervoltage and underload alarm and the like for the motor, and can be directly realized. The data acquisition device can be used for acquiring data of motors of various users, such as voltage, current, power, electric energy and other electric parameters, the display screen can be used for realizing field experiment and demonstration of the motor protector, and further the running condition of the motor can be analyzed through various electric parameters.
Claims (5)
1. A portable motor control protection device is characterized by comprising a box body and a box cover, wherein a first area and a second area are transversely arranged in the box body, the first area is used for installing a control loop, and the second area is used for installing a motor protector and a control panel;
the control loop comprises a motor power supply control loop and a data acquisition device;
the control panel is positioned at the top of the second area, and buttons and a display screen are arranged on the control panel; the motor protector is positioned at the bottom of the second area, and is electrically connected with the button and the display screen; the motor protector is also connected with the data acquisition device.
2. The portable motor control protection device of claim 1, wherein a terminal block is provided between the first region and the second region.
3. The portable motor control protection device of claim 1, wherein the data acquisition device comprises a voltage acquisition device and a current transformer.
4. The portable motor control protection device of claim 3, wherein the data acquisition device further comprises a zero sequence current transformer.
5. The portable motor control protection device of any one of claims 1-4, wherein the buttons include start, stop, alarm and remote buttons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921073447.6U CN210074758U (en) | 2019-07-10 | 2019-07-10 | Portable motor control protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921073447.6U CN210074758U (en) | 2019-07-10 | 2019-07-10 | Portable motor control protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210074758U true CN210074758U (en) | 2020-02-14 |
Family
ID=69429700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921073447.6U Active CN210074758U (en) | 2019-07-10 | 2019-07-10 | Portable motor control protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210074758U (en) |
-
2019
- 2019-07-10 CN CN201921073447.6U patent/CN210074758U/en active Active
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