HI ALL.I have to powrr up refrigeration compressor 120hp motor.on Megger test I am getting 1MOhm IR values for compresor motor( connected in circuit(magnetic contactors, but deenergized) ..Can I power up with this value? What could be reason and possible solution?
Thankyou.For aluminium cable 4 core or single core pvc armoured can you recommend size for above criteria as it seems multiple runs of cable will be required?
Thankyou sir for response.
1 ) system volatge is 400V ' 3 phase
2) voltage drop permisible is 5%
3 ) cable can be in open air temperature of air can be about 40C ( in summer)
4) I need to work feasiblity for bth copper and aluminium cables and will choose size and cost for installation
I have to connect 100kW 3phase load at a distance of 800 meter.Aluminium cable size will work? Is it feasible to run multicore aluminium cable as Voltage drop i calculated is too much?Regards
Hi All.I want to lay multicore PVC aluminium cable in a trench 300mm wide and 450mm deep( bricks used)This trench will have supports to support cable and this trench will have cover at top only means 300mm x 450mm area will be hollow throughout and only covers( may be concrete slabs) at top...
