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  • Users: monjo
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  1. monjo

    VSD constant torque application

    Can anyone please tell me whether current limiting will be effective for reducing overcurrent trips on VSD's for constant torque applications such as feeder belts, conveyors? Have found it an effective solution to the same problem with variable speed drives for pumps.
  2. monjo

    motor heat exchangers

    Have a problem with dust buildup inside tubing of large motor's heat exchanger. Want to have measurements of air velocity/ flow into and out of exchanger to use as an indicator that tubes may need cleaning. Could someone reccomend any sensors/ probes etc which may be used? Has anyone used...
  3. monjo

    Motor heat exchangers

    Have a problem with dust buildup inside tubing of large motor's heat exchanger. Want to have measurements of air velocity/ flow into and out of exchanger to use as an indicator that tubes may need cleaning. Could someone reccomend any sensors/ probes etc which may be used? Has anyone used...
  4. monjo

    transformer replacement, different power rating

    For 33000/3300V 3 phase 6000kVA @ 6.8% impedence to replace 4000kVA @ 6.9% impedence. From switchyard feeds a supply line to multiple drives/motors.
  5. monjo

    transformer replacement, different power rating

    For replacing transformers with spares of same voltage ratio but different kVA rating, what do I need to consider for replacing on the same protection network, ie which side do I need to construct fault currents for and how?
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