Basic Overvie
The soft start control panel is a device used to control the soft starter of an electric motor. It achieves smooth control of the motor starting process by adjusting the starting voltage and time of the motor. When the engine starts, the soft start cabinet controls the generator voltage and current to gradually increase, thereby reducing the starting current impact and avoiding excessive impact on the power grid and the motor itself.
Advantages And Characteristics
Control Panel Enclosure:
control panel enclosure is a protective housing for control panels. It shields internal components like circuit boards and switches from dust, moisture, and physical damage. Made of materials such as metal or plastic, it comes in various sizes and designs. It also helps manage cable routing and provides a secure installation for control panel systems.
Product Parameter
| Parameter Name | Parameter Value |
| Rated Insulation Voltage (Ui) | 660V, 1000V |
| Rated Working Voltage (Ue) | Auxiliary - circuit: AC 220V, 380V; DC 110V, 220V |
| Rated Frequency (f) | 50Hz or 60Hz |
| Rated Current (In) | Horizontal bus - bar: ≤ 6300A；Vertical bus - bar: 1000A, 1600A, 2500A |
| Rated Short - Circuit Withstand Current (Icw, 1s) | 50kA, 65kA, 80kA, 100kA |
| Rated Peak Withstand Current (Ipk) | 105kA, 143kA, 176kA, 220kA |
| Rated Short - Circuit Breaking Current (Icu) | 50kA, 65kA, 80kA, 100kA |
| Parameter Name | Parameter Value |
| Protection Level | IP30, IP40, IP42, IP54, etc. (can be customized according to requirements) |
| Shell Material | Cold - rolled steel plate or stainless steel plate, and the thickness of the plate is generally not less than 1.2mm |
| Overall Dimensions (Width×Depth×Height, mm) | Standard cabinet: 800×800×2200, 1000×800×2200, 1200×800×2200, etc. (can be customized) |
| Number of Circuits in Drawer Unit |
1/4 - unit drawer: up to 22 circuits in a single cabinet 1/2 - unit drawer: up to 11 circuits in a single cabinet 1 - unit drawer: up to 6 circuits in a single cabinet 2 - unit drawer: up to 3 circuits in a single cabinet 3 - unit drawer: up to 2 circuits in a single cabinet |
| Drawer Interlock | It has mechanical and electrical interlocks to prevent misoperation |
| Drawer Unit |
The height modulus is 20mm, and the height of the drawer compartment can be divided into 1E, 2E, 3E, 4E, 5E, 6E, 8E, 10E, 12E, 16E, 20E, 24E, etc. (1E = 20mm, for example, the height of an 8E drawer is 160mm) |
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Application areas
• Working principle: The soft start control cabinet improves the quality of electricity consumption by reducing the starting current and avoiding the impact of excessive current on the power grid. When the motor starts, the soft starter slowly adds current and voltage to the motor to avoid instantaneous high current impact when the motor starts. Once the motor reaches its rated speed, the control cabinet will automatically restore the current and voltage to normal operation.
• Technical performance: The power supply voltage of the soft start control cabinet is usually AC380V, 50Hzz, and the control object is not more than 320 kilowatts of three-phase asynchronous motors. It can work reliably under the conditions of an altitude of no more than 1000 meters, an ambient temperature of no more than 45℃, and no less than -30℃.
• Protection function: The soft start control panel has an overload protection function, which detects the change of motor current at any time to achieve overload protection. At the same time, it also has a phase loss protection function, which detects the change of three-phase line current at any time and responds to phase loss protection. The overheat protection function is also one of its important features. The temperature of the thyristor radiator is detected through the internal thermal relay. Once the radiator temperature exceeds the allowable value, the thyristor is automatically shut down and an alarm signal is issued.
• Classification: According to the voltage, it can be divided into low-voltage soft start cabinet and high-voltage soft start cabinet; according to the load, it can be divided into fan soft start cabinet, water pump soft start cabinet, etc. According to different load control methods, it can also be divided into one-to-one soft start cabinet, one-to-multiple soft start cabinet, one-use and one-standby soft start cabinet, two-use and one-standby soft start cabinet, etc.
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