PRAGATI PROCESS CONTROLS

Flame Proof AC Motor Drive Panel

AC drives are used to drive the AC motor especially three phase induction motors because these are predominant over other motors in most of the industries. In industrial terms, AC drive is also called as variable frequency drive (VFD), variable speed drive (VSD), or adjustable speed drive (ASD).In AC drives, frequency and voltage are changed in same proportion for smooth performance of ac motor. 

Salient Features: 

• Line reactor – 3% or 5% to reduce harmonic distortion
• Harmonic filters – a more effective way to reduce harmonic distortion
• Circuit breaker – protects the electrical circuit from overload or short circuit
• Bypass – keeps the system running even if the VFD fails
• PLC – Programmable Logic Controller – for more advanced operations
• Modem – for communication purpose
• AC or other cooling units – keep the panel at a certain temperature depending on surrounding environment
• Soft-starter – starts motor slowly but without speed control
• Surge protector – protects the system from voltage spikes
• Multiple motor overloads – an option for powering multiple motors off one VFD, typically used on fan walls
• Anti-condensation heater (available in NEMA 3R panels) – eliminates the buildup of dew inside the VFD panel
• Most reliable quality with service warranties

Application:  

• Pharma Industries
• Refineries and oil related industries