Hi experts
20Kv cable joint was broke-down , now we are preparing to cut the damaged joint and fixing two new joints instead whereas no extra length in the cable. what is the minimum safe distance between the new to joints ?
Thank you all for your help ,based on your help this was my final feedback to my supervisor
Dear Electrical SPV
Option 1 discusses separating the grid in two portions Wafa with 3 GTGs and NC41 with 2 STGs, such separation improve Independence and increase diversity in case of one portion fail...
Hello
Thank you all for giving a hand
I will answer your question for better conclusion
The motor is a gas turbine starting motor,
This situation is temporary because the main EDG are broken and we need to make this situation Incase of black out to to supply the GTG starting motor ,because we...
Hello
I need to calculate the 0.4k generator capacity needed to supply 6.6kv 250kw induction motor using 2.5MVA 0.4kv/6.6kv transformer with C.B .considering the in rich current of transformer and then the motor
What is the expected starting currents ?
"Skogsgurra (Electrical)3 Nov 18 13:39
All well, then?
What was the problem?"
we still not found the reason of this large current value ,
how can we record the motor starting torque to tell that there was issue with pump load ?
Hello
thank you all for your intersts
the motor is direct on line induction motor,the ct is core balance ct at the main cable ,the pump was separated and the motor restarted normally then the pump recouped and started normally as well .
the rotor wasn't locked
hello
A 3ph 900kw 6.6kv 94A fire water pump.it has tripped when attempt to start by 50 and 51N protection (fault current 3500A, tripping time 0.05s )
The motor insulation is good and the rotor is free ,the CT was tested.it has re-set and start again it is consuming 60A.
what would be the...
