13.3 Proposed VVVFD Concept:
Air slide fan drive with conventional system limitations & Disadvantages can be
overcome by replacing with VVVFD starter, addition to that will get better system
reliability, Process Optimization & Control & Power saving advantages are as under:
- VVVF Drive - VFD has one big advantage. In case rate of feed is low on
a continuous basis, VFD provides the facility of running the fan at lower
speed and hence can save power. - VFDs mainly used to control the speed of fans, resulting in easy management
and very precise control & also reduce the compressed air requirement,
resulting power saving. - VFD Concept, provided more system reliability, less breakdowns & resulting
high productivity of system The fans operate under a predictable set of laws
concerning speed, power and pressure. - A change in speed (RPM) of any blower will predictably change the pressure
rise and power necessary to operate it at the new RPM. - With VVVFD concept (reference of recent executed Project), Total -14 Nos.
of Air slide blower of various ratings & Total connected Load – 108 KW,
working made.