Thursday, April 17, 2014

Control Cable Required For 33/11KV Sub-Station

Control Cable Required For 33/11KV Sub-Station

10 Core Cable:

Used for Wiring from Control Room To Breaker.

a. Within Breaker                                                 (4 X 6M)    =    24 M
b. LV Breaker to Control Room                           (1 X 25M)  =    25 M
c. Feeder Breakers to Control Room                    (3 X 40M)  =  120 M
    (35m+37m+40m) arrox 40m
d. One Length for Group Control                          (1 X 40M)  =    40 M

                                                                Total                             210 M    (250 M Approx).

4 Core Cable:


a. CTs to Breaker                                                (3 X 10M)    =    30 M
b. 1 LV Breaker + 3 Feeder Breakers                  (4 X 30M)    =  120 M
c. LV to PTR                                                       (1 X 10M)    =    10 M
d. LV To Control Room(Voltmeter)                     (1 X 25M)    =    25 M
e. PT Supply - AC, PT Section Box to Breakers  (1 X 60M)    =    60 M
    (10m+15m+20m+15m)                                    

                                                                Total                             200 M    (250 M Approx).

2 Core Cable:


a. Chargers to Breaker                                         (4 X 20M)    =    80 M
b. Station DTR Junction Box to Each Charge
    and Charger to Breaker (5m+5m+10m+10m)                        =    30 M

                                                                Total                              110 M.


All above Calculations were done by  assuming that the control room will be constructed on 33 KV Side.


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