Laserfiche WebLink
SINGLE LINE DIAGRAM SCALE: <br />N/A 1 <br />CALCULATIONS <br />EXISTING 2000 AMP MAIN PANELBOARD <br />120/208 VOLT, 3Φ, 4W <br />LOCATED INSIDE UTILITY ROOM <br />SERVICE EQUIPMENT IS BOTTOM FED <br />DC CIRCUITS <br />MODULES TO INVERTERS A, B, C & D <br />7 STRINGS X 17 MODULES + 2 STRINGS X 15 MODULES = 149 MODULES <br />MAX VOLTAGE DC = (MODULE Voc + ((25°C - Temp Record Low°C [via www.solarabcs.org]) x T coefV)) X # modules in series <br />MAX VOLTAGE DC= (52.5 +((25°C - 3°C) x .2390)) X 17 modules in series = 981.9 VOLTS <br />11.54 AMPS EACH CIRCUIT X 1.25[PER NEC 690.8] = 14.425 AMPS <br />PV WIRE RUNS UNDER SOLAR MODULES SUPPORTED BY WILEY CABLE CLIPS, AND INTO JUNCTION BOX. ALSO <br />CONDUIT WILL BE MOUNTED A MINIMUM OF 1" ABOVE ROOF SURFACE. <br />ENGINEERED FOR 90°C TEMP. RATING OF CONDUCTOR & 44°C AMBIENT TEMP. PER SOLARABCS.ORG <br />#10 WIRE = 40 AMPS X .82 TEMP X .50 CONDUIT FILL = 16.4 AMPS ≥ 14.425 AMPS ✓ <br />9 STRINGS = (18) #10 AWG PV WIRE, (1) #10 THWN-2 GROUND <br />2" EMT @ 40% FILL PER NEC TABLE C.1 = (63) #8 AWG THWN-2 WIRES ✓ <br />AC CIRCUITS <br />INVERTER(S) TO 400 AMP AC LOAD CENTER <br />INVERTER A, B, C, D MAX OUTPUT = 64A X 1.25[PER NEC 215.2(A)1] = 80 AMPS (80 AMP SOLAR BREAKER) <br />AC CONDUIT SHALL BE MOUNTED A MINIMUM OF 1" ABOVE ROOF SURFACE <br />(INVERTERS A, B) #2 AWG WIRE = 130 AMPS X .82 TEMP X .80 CONDUIT FILL = 85.3 AMP ≥ 80 AMP ✓ <br />(4) #2 AWG THWN-2 AWG WIRE, (2) #8 THWN-2 GROUND - PER INVERTER <br />(INVERTERS C, D) #2 AWG WIRE = 130 AMPS X .82 TEMP X .80 CONDUIT FILL = 85.3 AMP ≥ 80 AMP ✓ <br />(4) #2 AWG THWN-2 AWG WIRE, (2) #8 THWN-2 GROUND - PER INVERTER <br />(2) 2" EMT @ 40% FILL PER NEC TABLE C.1 = (11) #2 AWG THWN-2 WIRES ✓ <br />LOAD CENTER TO TRANSFORMER <br />MAX OUTPUT = (64A + 64A + 64A + 64A) X 1.25[PER NEC 215.2(A)1] = 320 AMPS <br />AC CONDUIT SHALL BE MOUNTED INSIDE BUILIDING. <br />2/0 WIRE (2 PARALLEL SET) = 195 AMPS X 2 SET = 390 AMP ≥ 320 AMP ✓ <br />[2] [(4) 2/0 THWN-2 AWG WIRE, (2) #2 THWN-2 GROUND] <br />[2] 2" EMT @ 40% FILL PER NEC TABLE C.1 = (6) 2/0 THWN-2 WIRES ✓ (2 PARALLEL SET) <br />TRANSFORMER TO MAIN PANELBOARD <br />MAX OUTPUT = (64A + 64A + 64A + 64A) X 1.25[PER NEC 215.2(A)1] = 320 AMPS X 480V/208V = 738.5 (800 AMP FUSES) <br />AC CONDUIT SHALL BE MOUNTED INSIDE BULDING. <br />ENGINEERED FOR 90°C TEMP. RATING OF CONDUCTOR & 44°C AMBIENT TEMP. PER SOLARABCS.ORG <br />[4] 3/0 WIRE = 225 X 4 SET = 1000 ≥ 800 AMPS ✓ <br />[4] [(4) 3/0 THWN-2 AWG WIRE, (2) 1/0 THWN-2 GROUND] <br />[4] 2-1/2" EMT @ 40% FILL PER NEC TABLE C.1 = (8) 3/0 THWN-2 WIRES ✓ <br />SOLAR SYSTEM SIZE: 274.160 kW DC <br />CEC AC SYSTEM SIZE: 250.220 kW AC <br />CONDUCTORS <br />Location Conductors Conduit <br />1 (18) #10 AWG PV WIRE, (1) #10 EGC 2" EMT <br />2 (4) #2 AWG THWN-2, (1) #8 EGC, (1) #8 GEC 2" EMT <br />3 (2) [(4) 2/0 THWN-2, (1) #2 EGC, (1) #2 GEC](2) 2" EMT <br />4 (4) [(4) 3/0 THWN-2, (1) 2/0 EGC, (1) 1/0 GEC](4) 2-1/2" EMT <br />5 (4) [(4) 3/0 THWN-2, (1) 2/0 EGC, (1) 1/0 GEC](4) 2-1/2" RMC <br />6 (3) #12 THWN-2, (1) #12 EGC 3/4" EMT <br />SCALE: <br />N/A 2 <br />DC DISCO.1 2 <br />800 AMP AC DISCONNECT <br />SIEMENS #HF327N <br />240 VOLT; 3P <br />LOCATED NEXT TO MAIN <br />4 <br />SOLAR ARRAY "C" <br />(149) TESLA 460 WATT SOLAR MODULE <br />#SPR-M460-COM WITH TIGO #TS4-A-F <br />(7 STRINGS OF 17 MODULES & <br />2 STRING OF 15 MODULES) <br />80A <br />80A <br />N BAR <br />G BAR <br />400 AMP AC LOAD CENTER <br />SIEMENS #P2E18VE400ATS <br />480 VOLT, 3Φ, 4W <br />LOCATED NEXT TO MAIN <br />DC DISCO.1 2 <br />SOLAR ARRAY "D" <br />(149) TESLA 460 WATT SOLAR MODULE <br />#SPR-M460-COM WITH TIGO #TS4-A-F <br />(7 STRINGS OF 17 MODULES & <br />2 STRING OF 15 MODULES) <br />EGC = EQUIPMENT GROUNDING CONDUCTOR, GEC = GROUNDING ELECTRODE CONDUCTOR <br />#6 COPPER SOLID GROUND TO BE USED ON ROOFTOP WHEN NOT PROTECTED BY CONDUIT <br />ALL BREAKERS SHALL BE 3 POLE UNLESS OTHERWISE NOTED <br />ALL INNER-CIRCUIT WIRING SHALL BE #10 THWN-2 WIRE OR GREATER. <br />G BAR <br />EXISTING 2000A <br />MAIN DISCONNECT <br />EXISTING <br />GROUNDING <br />ELECTRODE <br />TO UTILITY <br />METER #V349N-015059M <br />N BAR <br />5 <br />DC DISCO.1 <br />SOLAR ARRAY "B" <br />(149) TESLA 460 WATT SOLAR MODULE <br />#SPR-M460-COM WITH TIGO #TS4-A-F <br />(7 STRINGS OF 17 MODULES & <br />2 STRING OF 15 MODULES) <br />DC DISCO.1 <br />50KW INVERTER "A" <br />SUNNY TRIPOWER <br />CORE1 50-US, STP 50-US-41 <br />480Y/277 VOLT, 3Φ <br />LOCATED ON ROOFTOP <br />SOLAR ARRAY "A" <br />(149) TESLA 460 WATT SOLAR MODULE <br />#SPR-M460-COM WITH TIGO #TS4-A-F <br />(7 STRINGS OF 17 MODULES & <br />2 STRING OF 15 MODULES) <br />2 <br />2 <br />SUPPLY SIDE CONNECTION <br />PER NEC 705.12 (A) VIA POWER <br />DISTRIBUTION BLOCKS <br />RE-CERTIFICATION OF MAIN <br />SERVICE PANEL TO BE <br />COMPLETED BY UL <br />800A <br />50KW INVERTER "B" <br />SUNNY TRIPOWER <br />CORE1 50-US, STP 50-US-41 <br />480Y/277 VOLT, 3Φ <br />LOCATED ON ROOFTOP <br />50KW INVERTER "C" <br />SUNNY TRIPOWER <br />CORE1 50-US, STP 50-US-41 <br />480Y/277 VOLT, 3Φ <br />LOCATED ON ROOFTOP <br />50KW INVERTER "D" <br />SUNNY TRIPOWER <br />CORE1 50-US, STP 50-US-41 <br />480Y/277 VOLT, 3Φ <br />LOCATED ON ROOFTOP <br />3 <br />225 kVA - AUTO TRANSFORMER <br />HPS SENTINEL <br />#SG3Y025BK0AHC0S <br />480V/208V AC, 3Φ <br />LOCATED NEXT TO MAIN <br />80A <br />80A <br />PVS5X (MONITOR) <br />INTERNET, 240V <br />LOCATED NEXT TO <br />LOAD CENTER <br />AUX BOX 480V TO <br />120V TRANSFORMER <br />LOCATED NEXT TO <br />LOAD CENTER <br />15A <br />6 <br />MAIN PANEL BACKFEED CALCULATION <br />EXISTING 2000 AMP MAIN SWITCHGEAR <br />SUPPLY SIDE CONNECTION SHALL BE PERFORMED PER NEC 705.12(A) <br />SYSTEM BONDING JUMPER IN <br />TRANSFORMER IS A MINIMUM <br />OF 2/0 AWG. THE SYSTEM <br />BONDING JUMPER MUST BE <br />BONDED TO THE GEC SYSTEM <br />CONDUCTOR. <br />THE 75 DEG C TABLE ENTRY FOR APMACITY MUST BE USED FOR THE CONDUCTOR AMPACITY. THE <br />90 DEG C RATING MAY BE USED FOR DERATING DUE TO TEMPERATURE BUT THE CONNECTION <br />AMPACITY MUST FOLLOW THE 75 DEG C VALUE.E2 <br />75 <br />- <br />1 <br />8 <br />1 <br /> <br />M <br />e <br />d <br />i <br />t <br />e <br />r <br />r <br />a <br />n <br />e <br />a <br />n <br /> <br />A <br />v <br />e <br />. <br />Re <br />n <br />o <br />v <br />a <br /> <br />E <br />n <br />e <br />r <br />g <br />y <br /> <br />C <br />o <br />r <br />p <br />Pa <br />l <br />m <br /> <br />D <br />e <br />s <br />e <br />r <br />t <br />, <br /> <br />C <br />A <br /> <br />9 <br />2 <br />2 <br />1 <br />1 <br />(7 <br />6 <br />0 <br />) <br />5 <br />6 <br />8 <br />- <br />3 <br />4 <br />1 <br />3 <br />Sheet No. <br />Revision No. <br />Date Drawn: <br />Drawn By: <br />Pr <br />o <br />j <br />e <br />c <br />t <br /> <br />N <br />a <br />m <br />e <br />: <br />Co <br />n <br />t <br />r <br />a <br />c <br />t <br />o <br />r <br />' <br />s <br /> <br />L <br />i <br />c <br />e <br />n <br />s <br />e <br /> <br /># <br />9 <br />1 <br />0 <br />8 <br />3 <br />6 <br />1 <br />Juan-Pablo Grados <br />12/06/2022 <br />FR <br />E <br />E <br />W <br />A <br />Y <br /> <br />I <br />N <br />D <br />U <br />S <br />T <br />R <br />I <br />A <br />L <br /> <br />P <br />A <br />R <br />K <br /> <br />( <br />C <br />O <br />M <br />4 <br />2 <br />3 <br />9 <br />0 <br />) <br />SA <br />N <br />T <br />A <br /> <br />A <br />N <br />A <br />, <br /> <br />C <br />A <br /> <br />9 <br />2 <br />7 <br />0 <br />4 <br />39 <br />0 <br />0 <br /> <br />W <br />E <br />S <br />T <br /> <br />S <br />E <br />G <br />E <br />R <br />S <br />T <br />R <br />O <br />M <br /> <br />A <br />V <br />E <br />3900 W <br />Segerstrom Ave - <br />101112076 & <br />20177413 <br />03/09/23