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  1. Phreezzz

    Starting a used 22KW motor

    Thanks for the explanation, I thought it was a post, and a warning, not just a sig! Hey, it made me read the rules more carefully than I would have otherwise, so cant be a bad thing Thanks again for all the assistance Phil
  2. Phreezzz

    Starting a used 22KW motor

    Thanks everyone for your excellent comments. I now have enough advise make an informed purchase and hopefully respolve my problem. Additionally thanks for the warnings in relation to specific brands. The last post referred me to an FAQ that details code of conduct, this I have re read. I am...
  3. Phreezzz

    Starting a used 22KW motor

    Anyone know anything about the Ralspeed soft starters Tracked one down for my 22 KW motor for £100 Sounds a good deal if it is a good brand?
  4. Phreezzz

    Starting a used 22KW motor

    Someone better point me to the sound proof enclosure forum
  5. Phreezzz

    Starting a used 22KW motor

    OK, now you have all given me plenty to think about Question, what if the roots blower is not working into a load on startup, ie, free input and output port Once the motor has started, then load is applied We used to run a 1000 CFM compressor at 150 psi, diesel engine, a Detroit, for our...
  6. Phreezzz

    Starting a used 22KW motor

    Scotty This motor drivers a blower, not a fan. A blower is positive displacement and unlike a fan, does not store so much energy in the form of angular momentum. Start up time of the blower is relatively short. it can also be started off load, ie with blower ducts open. I have found one GE soft...
  7. Phreezzz

    Starting a used 22KW motor

    Hi Scotty Yes, I am in the UK, and thanks for your advice. The only reason I am looking for a star delta starter was because that we suggested to me by local electical engineer! We are an RnD company and will not be running this thing on continuous basis, but will be starting and stopping quite...
  8. Phreezzz

    Starting a used 22KW motor

    Hi I recently purchased an industrial blower (Roots) with a 22KW motor. I am located in a 415v 50 Hz territory. No control system came with this purchase (OK, it was cheap) and I have a set of six labelled wires from the motor. Cost of a new star delta starter is greater than I paid for the...

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