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  1. pop

    Motor derating due to ambient temp

    I would like to derate an motor of 45 kW at 40 degree Celsius to be used in 50 degree Celsius. Is there any standard for derating the motor size? What is the percentage derating in power per degree celsius? Thanks in advance. POP
  2. pop

    VFD Voltages

    Thanks all for your valuable input. Look like that 690 V is the best solution at this stage for motor power up to 1000 kW. POP
  3. pop

    Fire FIghting in Cable Galery and Rised Floor

    Hi Alehman, Thanks for the solution. I have used this solution in a power station where a large cable trays are passing trough the walls of one cable basement to another. However we coated the cables for 1.5 m at the either side of walls. However I do not remember the BS no based on what we...
  4. pop

    VFD Voltages

    I am looking to find the best voltage for MOTOR-VFD solution at a 800-1000 kW. What is the Voltage trend worldwide for this power? 415 V, 690V or 11 kV. Tanks Peter
  5. pop

    Fire FIghting in Cable Galery and Rised Floor

    Hi alehman My practical experience makes me think that fire extinguisher is required in the cable gallery but I can not find a proper Standard to impose in this project. There is already provided fire alarm but not fire extinguisher. Thaks Peter
  6. pop

    Fire FIghting in Cable Galery and Rised Floor

    I am looking to find a standard to impose a fire fighting system in a rised floor in a MCC room and cable basement under MCC room for couple of new projects. Can anybody have any idea please? Regards pop
  7. pop

    11Kv Diesel Generator

    Can anybady help to find a DG Manufacturer for 3MW DG at 50 degree please? Any site?
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