Variable Frequency Drive is a DSP based general purpose AC Drive with state-of-the-art. Technology and incorporates the latest semiconductor power devices, with following salient features :
- Indigenously designed AC drives to with-stand Indian Power Conditions for Motor Control
- Space Vector Modulation Technique
- DC Bus Ripple cancellation
- Low output THD (total harmonic distortion)
- Output short circuit protection & various fault monitoring
- Custom designed human interface (HMI)
Specifications: - Ratings Available 0.37 kW to 600 kW
- 3 Phase, 380V/415V/480V, 50/60Hz, Input Rating Power Supply,
- Tolerance Voltage : +10%, -15%,
- Frequency +/-5%, Imbalance less than 3%
- Output Voltage 3 Phase, 380V to 480V (Proportional to input voltage)
- Output Frequency Range 1Hz to 400Hz
- Frequency Stability Digital setting : +/-0.01% of max. Frequency
- Analog setting : +/-0.2% of max. Frequency (at temperatures -10oC to +50oC ambient)
- Output Rating Overload Capacity 150% for one minute
- Control system Space vector modulation with bus ripple compensation
- Adjustable current limit Programmable 30 to 200% of drive rated current
- Starting frequency 1 to 6Hz adjustable
- Base Frequency 30 to 400Hz
- Carrier frequency 2kHz to 6kHz programmable in steps of 1kHz
- Jog function Available with programmable speed/Acc/Dec
- Catch on fly Drive will search the running Motor speed, catches it and then proceeds to the set speed.
- Jump frequency One jump frequency control with adjustable jump range DC injection Braking
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Kalpesh Raval (Tranzil Engineers)
B-110, Sai Amrat, Jaywant Sawant Road, Dahisar West, Mumbai, Maharashtra - 400068, India
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