Basic Overvie
Definition and function:
The frequency conversion vfd cabinet is an electrical control cabinet that integrates frequency converters,
circuit breakers, contactors, relays, PLC and other components. It is mainly used to adjust the speed and power of the motor.
Composition structure:
Frequency conversion cabinet usually includes input power supply, frequency converter, output circuit,
protection device (such as overload protection, short circuit protection) and control system.
Advantages And Characteristics
Under light or no-load conditions, the speed of the motor can be reduced, thereby significantly reducing energy consumption.
According to statistics, the energy-saving rate of using a variable frequency control box is generally around 20% -45%.
The variable frequency control cabinet can maintain a constant speed under different load conditions,
thereby improving production efficiency.
The variable frequency control cabinet can reduce the wear and tear of motors and mechanical equipment,
lower maintenance frequency and costs by controlling the running time and current fluctuations.
The accuracy of variable frequency control motor speed is improved, so it can keep the system pressure change of the pipeline network
within the range of 3pisg, that is, within the range of 0.2bar, effectively improving the quality of the working conditions.
Power conversion:
The VFD control cabinet converts fixed frequency AC power into adjustable frequency AC power to meet the needs of
different load conditions. This process is realized through the rectification, filtering, inverter and other links inside the frequency converter.
Motor control:
By changing the frequency of the output power supply, the frequency conversion cabinet can control the speed
and torque of the motor, thereby achieving precise control of the equipment.
Power conversion: The VFD control cabinet converts fixed frequency AC power into adjustable frequency
AC power to meet the needs of different load conditions. This process is realized through the rectification,
filtering, inverter and other links inside the frequency converter.
Motor control: By changing the frequency of the output power supply, the frequency conversion cabinet can
control the speed and torque of the motor, thereby achieving precise control of the equipment.
Split Phase VS Single Phase:
Split - phase and single - phase are different. Single - phase power is a basic single - circuit AC power supply, common for small - power home appliances,
consisting of one live wire and one neutral wire. Split - phase, essentially a type of single - phase, derives two voltage branches with a 180° phase difference
from a single - phase source. For example, the common 240V/120V supply can meet different power demands and is often used in North American
households to power high - power appliances like electric stoves.
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) |
If you are seeking a reliable solution for power distribution and control in an oil factory,
our Variable frequency control panel is undoubtedly your best choice.
Contact us immediately to learn more about our products, obtain exclusive customized solutions,
and work together to create a stable and efficient future of electricity.
Application area
Water supply system:
Variable frequency control cabinets are widely used in various urban and rural tap water supply systems,
achieving automatic control of closed-loop constant pressure water supply, domestic water supply, fire water supply, and industrial water supply.
Elevator control:
Variable frequency control panel provide smooth start and stop as well as accurate speed control in elevator
and lift applications, thereby enhancing protection and passenger comfort.
HVAC system:
In heating, ventilation, and air conditioning systems, the variable frequency control cabinet adjusts the operating speed of fans
and pumps to maintain a stable indoor environment and reduce energy consumption.
Power system:
Variable frequency control cabinet can achieve dynamic current regulation and optimize power load distribution
in power dispatching, reduce power equipment losses, and improve power transmission efficiency.
Water treatment system:
The vfd control cabinet can automatically adjust the motor speed according to the actual needs of
the sewage treatment pump, reduce waste, and ensure the quality of treated water.
Paper and textile industry:
The application of variable frequency control cabinets in these industries can improve the automation level of production lines,
reduce material waste and improve product quality by accurately controlling the operating speed of machines.
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