VSD Reliability - We have 2 duty 1
VSD Reliability - We have 2 duty 1
(OP)
VSD Reliability - We have 2 duty 1 stand-by pumps supplying direct into water supply distribution each pump rated at 1800 kW. We have proposed 3.3 kV - VSD drives. The system must have continuous operation and near 100% reliability. The client is concerned over the reliability of the VSD drives and is requesting that we provide standby units.
What is the typical reliability of VSDS and what would the typical down time be in the event of failure ?
What is the typical reliability of VSDS and what would the typical down time be in the event of failure ?





RE: VSD Reliability - We have 2 duty 1
Is the use of VSD justified?
Dejan IVANOVIC
Process Engineer, MSChE
RE: VSD Reliability - We have 2 duty 1
A good quality drive well specified and installed should do 7 to 10 years of service but i have seen many do a lot more than that.
Regards
Ashtree
"Any water can be made potable if you filter it through enough money"
RE: VSD Reliability - We have 2 duty 1
RE: VSD Reliability - We have 2 duty 1
Best regards, Morten
RE: VSD Reliability - We have 2 duty 1
RE: VSD Reliability - We have 2 duty 1
Maybe if you could monitor internal temp rise a function of load and irregularities in switching speeds you could have an effective preventive maintenance program, but I have never seen one.
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P.E. Metallurgy, Plymouth Tube
RE: VSD Reliability - We have 2 duty 1
Slight aside - the reactor coolant circulators in the British AGR nuclear power plants are operated on variable speed drives. 'Over-engineered' is an understatement, but VSD nonetheless.