- (1436 1450) 2 1(Q) 120/(H) 45(pump) 75%(motor) 93(Total) 70 =Q x H x 0.746=77.75 x Total =77X1.2=92. 95 =2X92=185. 109. =185+109=294.367.. =)2X92(+1X92+109( ).386483.. 500.. (1450 1470) 2 1(Q) 155/(H) 45(pump) 75%(motor) 93(Total) 70 =Q x H x 0.746=99.75 x Total =99X1.2=119. 120 =2X119=239. 109. =239+109=348.435.. (80%)543.. 630.. 630.. 500.. 2 -

- 1 1(Q) 10/(H) 15(Total) 50% =Q x H x 0.736=2.94.75 x Total =1.3X2.94=3.83. 4 1X4=4.

- No. (.)(.)(..) 1 3213800.511.252 12663800.533.753 11-380333.754 11--380101012.5588-38018106 211380445 ( )7 11-3802020258 11-380151518.759 ()11-380556.2510 ( + + )11-380101012.511 -1 11--380101012.512 -211--380556.2513 11-380101012.514 11-380556.25 109136

- 1- SHORT CIRCUIT CALCULATIONS AT TRANSFORMER LOW VOLTAGE TERMINALTransformer Low Voltage =400(v)INPUTTransformer rating =630(KVA)Transformer impedance (Z) =6.0%Transformer full load current (Ir) =957(A)CALCULATEDShort circuit current (Isc) = Ir / Z =15(KA)2- GENRATOR CALCULATION TO FEED MAINLOW VOLTAGE PANELGenerator rating =500(KVA)INPUTGenerator full load current (Ir) =760(A) 800CALCULATED2- BUSBAR CALCULATION FOR MAINLOW VOLTAGE PANELTransformer rating =630(KVA)INPUTTransformer full load current (Ir) =957(A)Bus Bar Seafty Factor =1.50-BUSBAR RATING =1436(A)2500CALCULATED3- POWER FACTOR CORRECTIONCorrect Factor From 0.8% TO 0.92 % =0.324-INPUTTotal Load Power For Low Voltage =294(KW)CALCULATEDPower Factor For Low Voltage Loads =95(KVAR)THE CAPACITY IS100(KVAR)

- TransformerP =504KWS =630KVAIF.L957.6AIC.B = IF.L x1.251197AStanderd C.B1250AK0.75Derating factorsIcable = IF.L / K1277AIC (A) =435(3x240+120) mm- ( in Ground)No.of Cable = Icable/ IC2.9Selected cable 3(3x240+120) mm/CU/XLPE/SWA/PVCGeneratorP =400KWS =500KVAIF.L760AIC.B = IF.L x1.25950AStanderd C.B1000AK0.75Derating factorsIcable = IF.L / K1013AIC (A) =375(3x185+95) mm- ( in Ground)No.of Cable = Icable/ IC2.7nrSelected cable 3(3x185+95) mm /CU/XLPE/SWA/PVCPumpP =95KWS =119KVAIF.L181AIC.B = IF.L x1.25226AStanderd C.B250AK0.80Derating factorsIcable = IF.L / K226AIC (A) =260(3x95) + 25E mm ( Air)No.of Cable = Icable/ IC0.87nrSelected cable (3x95) + 25E mm /CU/XLPE/PVC

- NoFROMTOTAG.LOAD CABACITYCABLE SELECTED CURRENTC.BCABLE DATASTARTERPath len. (m)VDV.DCOMULATIVE V.DRemarks(KW)(V)Ira (A)D.FactorAAlayingIZ (A)NO.Size (mm)InsulationTYPEmv/amp/m(V)%(V)%MEDUEM VOLTAGE SUPPLY1R.M.UTRANSFORMER504110003X300CU/XLPE/SWA/PVC, 8.7/15(KV)FEEDERLOW VOLTAGE SUPPLY1TRANSFORMERMDBT.R5044009090.7512121250G4353(3X240+120)CU/XLPE/SWA/PVCFEEDER750.2014.61.14.61.12GENERATORMDBGE.4004007220.759621000G3753(3X185+95)CU/XLPE/SWA/PVCFEEDER900.2014.41.14.41.1MAIN LOW VOLTAGE PANEL3MDBPUMP -1p-1954001710.75229250A260(3X95)CU/XLPE/PVCS.S4PUMP -2p-2954001710.75229250A260(3X95)CU/XLPE/PVCS.S5PUMP -3p-3954001710.75229250A260(3X95)CU/XLPE/PVCS.S8electrical Valves for PUMP -1E.v-p1140020.7320D23(4x2.5)CU/PVC/PVCO/C9electrical Valves for PUMP -2E.v-p2140020.7320D23(4x2.5)CU/PVC/PVCO/C10electrical Valves for PUMP -3E.v-p3140020.7320D23(4x2.5)CU/PVC/PVCO/C13electrical Valves - MainE.v-M140020.7320D23(4x2.5)CU/PVC/PVCO/C13electrical Valves -1E.v-1140020.7320D23(4x2.5)CU/PVC/PVCO/C14electrical Valves -2E.v-2140020.7320D23(4x2.5)CU/PVC/PVCO/C15electrical Valves -3E.v-3140020.7320D23(4x2.5)CU/PVC/PVCO/C16electrical Valves -4E.v-4140020.7320D23(4x2.5)CU/PVC/PVCO/C17electrical Valves -5E.v-5140020.7320D23(4x2.5)CU/PVC/PVCO/C18electrical Valves -6E.v-6140020.7320D23(4x2.5)CU/PVC/PVCO/C19electrical Valves -7E.v-7140020.7320D23(4x2.5)CU/PVC/PVCO/C20electrical Valves -8E.v-8140020.7320D23(4x2.5)CU/PVC/PVCO/C21electrical Valves -9E.v-9140020.7320D23(4x2.5)CU/PVC/PVCO/C22electrical Valves -10E.v-10140020.7320D23(4x2.5)CU/PVC/PVCO/C23electrical Valves -11E.v-11140020.7320D23(4x2.5)CU/PVC/PVCO/C23electrical Valves 12E.v-12140020.7320D23(4x2.5)CU/PVC/PVCO/C24Dewetring Pump-1DP-1440070.7510250D260(4X4)CU/XLPE/PVCDOL25Dewetring Pump-2DP-2440070.7510250D260(4X4)CU/XLPE/PVCDOL26CRANECR540090.751220D30(4X4)CU/XLPE/PVCFEEDER13VENTILATOR-1V-1140020.7320D23(3x3)CU/PVC/PVCFEEDER14VENTILATOR-2V-2140020.7320D23(3x3)CU/PVC/PVCFEEDER15VENTILATOR-3V-3140020.7320D23(3x3)CU/PVC/PVCFEEDER16VENTILATOR-4V-4140020.7320D23(3x3)CU/PVC/PVCFEEDER17VENTILATOR-5V-5140020.7320D23(3x3)CU/PVC/PVCFEEDER18VENTILATOR-6V-6140020.7320D23(3x3)CU/PVC/PVCFEEDER19VENTILATOR-7V-7140020.7320D23(3x3)CU/PVC/PVCFEEDER20VENTILATOR-8V-8140020.7320D23(3x3)CU/PVC/PVCFEEDER27PUMP STATION LIGHT PANELLP-P10400180.752440D59(4X10)CU/XLPE/PVCFEEDER28ADMINSTRATION BUILDINGLP-AD20400360.754840G220(3X70+35)CU/XLPE/SWA/PVCFEEDER1800.523.40.87.92.029CHLORINATION BUILDINGLP-CHL15400270.753640G185(3X50+25)CU/XLPE/SWA/PVCFEEDER1300.7152.50.67.11.830ELECTRICAL BUILDINGLP-EL540090.751240G74(4X10)CU/XLPE/SWA/PVCFEEDER503.0941.40.36.01.531GENERATOR BUILDINGLP-GE10400180.752440G96(4X16)CU/XLPE/SWA/PVCFEEDER501.9821.80.46.41.632GURD-1 & EXTERNAL LIGHITING PANELLP-G-110400180.752440G74(4X35)CU/XLPE/SWA/PVCFEEDER550.9550.90.25.51.433GURD-2 LIGHITING PANELLP-G-2540090.751240G185(4X16)CU/XLPE/SWA/PVCFEEDER1901.9823.40.88.02.034WORKSHOP BUILDINGLP-WS10400180.752440G96(4X16)CU/XLPE/SWA/PVCFEEDER701.9822.50.65.21.335STORE BUILDINGLP-ST540090.751240G74(4X10)CU/XLPE/SWA/PVCFEEDER803.0942.20.66.81.6