single line diagram

..

here power from the transformer --> distribution panel --> local control panel --> master control panel..

1) i have doubt wheather this circuit works or not?

2)from the local control panel to master control panel.. the distance is nearly 3000m
(3 KMS), if suppose the relay is placed in the local control panel, we applied the voltage from the master control panel, it is enough for relay to change its contact..

3)we want to use pilot lamps for indication, wether pilot lamps receive enough voltage and current form the local control panel to master control panel for its consumption(voltage drop?)