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AJ Technology

Drive Panel

Drive Panel

Product Details

Construction Type Compartmentalize Non- Compartmentalize/Cubical
Type Manual VFD Panel Auto VFD Panel
Max. rated of VFD 400KW
Rated operated voltage 440V
Degree of Protection Up to IP54
Ambient temp Design Ambient temp. standard 40°C Operated 45°C & 50°C
Inspection and Testing Routine Test Control/Interlock Test Continuity Test Mechanical endurance Test
Application Modulated type load Process plant Treatment plant Motor-driven machinery
Fabrication Ms Crca Sheet Steel or Ss304 Structure, Door, Cover: 1.6 Mm Thick Gland Plate: 3mm Thick
Component selection Drive selection basis on their rating and application, input choke and output choke selection basis
Feature Manufacturers across the globe capitalize on AC variable frequency drive technology to save money

Additional Information

Payment Terms T/T

When a VFD starts a motor, it initially applies a low frequency and voltage to the motor. The starting frequency is typically 2 Hz or less. Starting at such a low frequency avoids the high inrush current that occurs when a motor is started by simply applying the utility (mains) voltage by turning on a switch. When VFD starts, the applied frequency and voltage are increased at a controlled rate or ramped up to accelerate the load without drawing excessive current.

This starting method typically allows a motor to develop 150% of its rated torque while drawing only 50% of its rated current. When a motor is simply switched on at full voltage, it initially draws at least 300% of its rated current while producing less than 50% of its rated torque. As the load accelerates, the available torque usually drops a little and then rises to a peak while the current remains very high until the motor approaches full speed. A VFD can be adjusted to produce a steady 150% starting torque from standstill right up to full speed while drawing only 50% current.


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