NAME LOCATION MOUNTING SUPPLIED VOLTAGE BUS AMPFROM SIZE

LGS 1ST FLOOR SURFACE LDPS 208/120 3PH 4W 225AELEC. ROOM

DESCRIPTIONFULL BRANCH CIRCUIT BRANCH FULL

DESCRIPTIONLOAD BRKR. AND BRKR. LOAD(KVA) SIZE PHASE SIZE (KVA)

Lighting 0.8 20/1 1A 2A 20/1 0.5 Comp. Recpt.Basement Lighting 0.5 20/1 3B 4B 20/1 0.5 Comp. Recpt.

Receptacle 0.7 20/1 5C 6C 20/1 0.8 Comp. Recpt.Receptacle 0.7 20/1 7A 8A 20/1 0.5 ReceptacleReceptacle 0.9 20/1 9B 10B 20/1 0.7 ReceptacleReceptacle 0.9 20/1 11C 12C 20/1 0.4 ReceptacleReceptacle 0.7 20/1 13A 14A 20/1 Spare

Exhaust Fan 0.3 20/1 15B 16B 20/1 SpareAud. Recept. 0.3 20/1 17C 18C 20/1 Spare

Lighting 1.1 20/1 19A 20A 20/1 SpareLighting 1.5 20/1 21B 22B 20/1 SpareSpare 20/1 23C 24C 20/1 SpareSpare 20/1 25A 26A 20/1 SpareSpare 20/1 27B 28B 20/1 SpareSpare 20/1 29C 30C 20/1 SpareSpace / 31A 32A / SpaceSpace / 33B 34B / SpaceSpace / 35C 36C / SpaceSpace / 37A 38A / SpaceSpace / 39B 40B / SpaceSpace / 41C 42C / Space

8.4 3.4Total Load = 11.8KVA

LGS Demand LoadReceptacle Load Adjusted Load

5.5KVA First 10KVA 5500VARest *.5 0

Total 5500VA

Lighting Load Adjusted Load3.9KVA *1.25 5875VA

Remaining Load Adjusted Load2.4KVA *1.0 2400VA

TOTAL 13775VA

NAME LOCATION MOUNTING SUPPLIED VOLTAGE BUS AMPFROM SIZE

L1S 1ST FLOOR SURFACE LDPS 208/120 3PH 4W 225AELEC. ROOM

DESCRIPTIONFULL BRANCH CIRCUIT BRANCH FULL

DESCRIPTIONLOAD BRKR. AND BRKR. LOAD(KVA) SIZE PHASE SIZE (KVA)

Lighting 0.8 20/1 1A 2A 20/1 1 Comp. Recpt.Lighting 1.3 20/1 3B 4B 20/1 1 Comp. Recpt.

AV Recpt. 0.5 20/1 5C 6C 20/1 1 Comp. Recpt.AV Recpt. 0.5 20/1 7A 8A 20/1 1 Comp. Recpt.Receptacle 0.9 20/1 9B 10B 20/1 1 Comp. Recpt.Receptacle 0.9 20/1 11C 12C 20/1 0.9 Comp. Recpt.Receptacle 0.7 20/1 13A 14A 20/1 0.5 SpareReceptacle 0.4 20/1 15B 16B 20/1 SpareReceptacle 0.4 20/1 17C 18C 20/1 Spare

Spare 20/1 19A 20A 20/1 SpareSpare 20/1 21B 22B 20/1 SpareSpare 20/1 23C 24C 20/1 SpareSpare 20/1 25A 26A 20/1 SpareSpare 20/1 27B 28B 20/1 SpareSpare 20/1 29C 30C 20/1 SpareSpace / 31A 32A / SpaceSpace / 33B 34B / SpaceSpace / 35C 36C / SpaceSpace / 37A 38A / SpaceSpace / 39B 40B / SpaceSpace / 41C 42C / Space

6.4 6.4Total Load = 12.8KVA

L1S Demand LoadReceptacle Load Adjusted Load

3.3KVA First 10KVA 3300VARest *.5 0

Total 3300VA

Lighting Load Adjusted Load2.1KVA *1.25 2625VA

Remaining Load Adjusted Load7.4KVA *1.0 7400VA

TOTAL 13325VA

NAME LOCATION MOUNTING SUPPLIED VOLTAGE BUS AMPFROM SIZE

L2S 2ND FLOOR SURFACE LMPS 208/120 3PH 4W 225AELEC. ROOM

DESCRIPTIONFULL BRANCH CIRCUIT BRANCH FULL

DESCRIPTIONLOAD BRKR. AND BRKR. LOAD(KVA) SIZE PHASE SIZE (KVA)

Lighting 1.1 20/1 1A 2A 20/1 1 Comp. Recpt.Receptacles 1.1 20/1 3B 4B 20/1 1 Comp. Recpt.Receptacles 1.3 20/1 5C 6C 20/1 0.8 Comp. Recpt.Receptacles 1.1 20/1 7A 8A 20/1 1 Comp. Recpt.Receptacles 0.9 20/1 9B 10B 20/1 1 Comp. Recpt.Receptacles 1.1 20/1 11C 12C 20/1 1 Comp. Recpt.Receptacles 1.1 20/1 13A 14A 20/1 1 Comp. Recpt.Receptacles 1.3 20/1 15B 16B 20/1 0.8 Comp. Recpt.Receptacles 1.3 20/1 17C 18C 20/1 1 Comp. Recpt.Receptacles 1.1 20/1 19A 20A 20/1 0.9 Recpt.Receptacles 1.1 20/1 21B 22B 20/1 1.1 Recpt.Receptacles 1.1 20/1 23C 24C 20/1 0.4 FCU-4Receptacles 1.1 20/1 25A 26A 20/1 SpareReceptacles 1.3 20/1 27B 28B 20/1 Spare

Spare 20/1 29C 30C 20/1 SpareSpace / 31A 32A / SpaceSpace / 33B 34B / SpaceSpace / 35C 36C / SpaceSpace / 37A 38A / SpaceSpace / 39B 40B / SpaceSpace / 41C 42C / Space

16 11Total Load = 27KVA

L2S Demand LoadReceptacle Load Adjusted Load

16.9KVA First 10KVA 10000VARest *.5 3450VA

Total 13450VA

Lighting Load Adjusted Load1.1KVA *1.25 1375VA

Remaining Load Adjusted Load9KVA *1.0 9000VA

TOTAL 23825VA

NAME LOCATION MOUNTING SUPPLIED VOLTAGE BUS AMPFROM SIZE

L3S 3RD FLOOR SURFACE LMPS 208/120 3PH 4W 225AELEC. ROOM

DESCRIPTIONFULL BRANCH CIRCUIT BRANCH FULL

DESCRIPTIONLOAD BRKR. AND BRKR. LOAD(KVA) SIZE PHASE SIZE (KVA)

Lighting 1.7 20/1 1A 2A 20/1 0.5 Comp. Recpt.Lighting 0.7 20/1 3B 4B 20/1 0.5 Comp. Recpt.

Receptacles 1.1 20/1 5C 6C 20/1 1 Comp. Recpt.Receptacles 1.3 20/1 7A 8A 20/1 1 Comp. Recpt.Receptacles 1.1 20/1 9B 10B 20/1 0.5 Comp. Recpt.Receptacles 1.1 20/1 11C 12C 20/1 0.4 FCU-3Receptacles 1.3 20/1 13A 14A 20/1 0.4 FCU-2

Spare 20/1 15B 16B 20/1 SpareSpare 20/1 17C 18C 20/1 SpareSpare 20/1 19A 20A 20/1 SpareSpare 20/1 21B 22B 20/1 SpareSpare 20/1 23C 24C 20/1 SpareSpare 20/1 25A 26A 20/1 SpareSpare 20/1 27B 28B 20/1 SpareSpare 20/1 29C 30C 20/1 SpareSpace / 31A 32A / SpaceSpace / 33B 34B / SpaceSpace / 35C 36C / SpaceSpace / 37A 38A / SpaceSpace / 39B 40B / SpaceSpace / 41C 42C / Space

8.3 4.3Total Load = 12.6KVA

L3S Demand LoadReceptacle Load Adjusted Load

5.9KVA First 10KVA 5900VARest *.5 0

Total 5900VA

Lighting Load Adjusted Load2.4KVA *1.25 3000VA

Remaining Load Adjusted Load4.3KVA *1.0 4300VA

TOTAL 13200VA

NAME LOCATION MOUNTING SUPPLIED VOLTAGE BUS AMPFROM SIZE

LMW MUSEUM SURFACE LDPS 208/120 3PH 4W 100WORKSHOP

DESCRIPTIONFULL BRANCH CIRCUIT BRANCH FULL

DESCRIPTIONLOAD BRKR. AND BRKR. LOAD(KVA) SIZE PHASE SIZE (KVA)

Workshop Recpt. 1 20/1 1A 2A 20/2 1.5 Workshop Recpt.Workshop Recpt. 1 20/1 3B 4B /Workshop Recpt. 1 20/1 5C 6C 20/2 1.5 Workshop Recpt.Workshop Recpt. 1 20/1 7A 8A /Workshop Recpt. 1 20/1 9B 10B 20/1 SpareWorkshop Recpt. 1 20/1 11C 12C 20/1 SpareWorkshop Recpt. 1 20/1 13A 14A 20/1 SpareWorkshop Recpt. 1 20/1 15B 16B 20/1 Spare

Spare 20/1 17C 18C 20/1 SpareSpare 20/1 19A 20A / SpaceSpare 20/1 21B 22B / SpaceSpare 20/1 23C 24C / SpaceSpare 20/1 25A 26A / SpaceSpare 20/1 27B 28B / SpaceSpare 20/1 29C 30C / Space

8 3Total Load = 11KVA

LMW Demand LoadReceptacle Load Adjusted Load

0KVA First 10KVA 0VARest *.5 0

Total 0VA

Lighting Load Adjusted Load0KVA *1.25 0VA

Remaining Load Adjusted Load11KVA *1.0 11000VA

TOTAL 11000VA

NAME LOCATION MOUNTING SUPPLIED VOLTAGE BUS AMPFROM SIZE

LPS MUSEUM SURFACE LDPS 208/120 3PH 4W 100WORKSHOP

DESCRIPTIONFULL BRANCH CIRCUIT BRANCH FULL

DESCRIPTIONLOAD BRKR. AND BRKR. LOAD(KVA) SIZE PHASE SIZE (KVA)

Fan F-7 1.6 20/1 1A 2A 20/1 0.5 Water TreatmentFan F-2 0.5 20/1 3B 4B 20/1 0.5 Water TreatmentFan F-6 0.3 20/1 5C 6C 20/1 SpareFan F-8 1.6 20/1 7A 8A 20/1 SpareFan F-4 1.2 20/1 9B 10B 20/1 SpareFan F-5 0.4 20/1 11C 12C 20/1 SpareFan F-3 0.4 20/1 13A 14A 20/1 SpareSpare 20/1 15B 16B 20/1 SpareSpare 20/1 17C 18C 20/1 SpareSpare 20/1 19A 20A 20/1 SpareSpare 20/1 21B 22B 20/1 SpareSpare 20/1 23C 24C 20/1 SpareSpace / 25A 26A / SpaceSpace / 27B 28B / SpaceSpace / 29C 30C / Space

6 1Total Load = 7KVA

LPS Demand LoadReceptacle Load Adjusted Load

0KVA First 10KVA 0VARest *.5 0

Total 0VA

Lighting Load Adjusted Load0KVA *1.25 0VA

Remaining Load Adjusted Load7KVA *1.0 7000VA

TOTAL 7000VA

TRANSFORMERS DEMAND ADJUSTED LOAD SELECTEDLOAD (VA) (demand * 1.25) SIZE

Transformer LGS 13775 17219 30KVAelectrical room (ground floor)Transformer LMW 11000 12650 15KVAworkshop (ground floor)Transformer L1S 13325 15324 30KVAelectrical closet (1st floor)Transformer L2S 23825 27399 30KVAelectrical closet (2ndfloor)Transformer L3S 13200 15180 30KVAelectrical closet (3rd floor)Transformer LPS 7000 8050 15KVAmechanical penthouse

ORIGINAL DESIGN

HDPS Panel to 150KVA Transformer5 feet of 2.5" conduit15 feet of #4/0 wire

5 feet of #4 ground wire

150KVA Transformer to LDPS Panel5 feet of 3" conduit

20 feet of 250 kcmil wire5 feet of #2 ground wire

LDPS Panel to LMW Panel170 feet of 1.5" conduit

680 feet of #3 wire170 feet of #6 ground wire

LDPS Panel to LGS Panel15 feet of 2.5" conduit

60 feet of #4/0 wire15 feet of #4 ground wire

LDPS Panel to L1S Panel15 feet of 2.5" conduit

60 feet of #4/0 wire15 feet of #4 ground wire

HMPS Panel to 150KVA Transformer5 feet of 2.5" conduit15 feet of #4/0 wire

5 feet of #4 ground wire

150KVA Transformer to LMPS Panel5 feet of 3" conduit

20 feet of 250 kcmil wire5 feet of #2 ground wire

LMPS Panel to LPS Panel5 feet of 1.5" conduit

20 feet of #3 wire5 feet of #6 ground wire

LMPS Panel to L3S Panel160 feet of 2.5" conduit

640 feet of #4/0 wire160 feet of #4 ground wire

LMPS Panel to L2S Panel175 feet of 2.5" conduit

700 feet of #4/0 wire175 feet of #4 ground wire

TOTAL FOR CONDUITS175 feet of 1.5" 375 feet of 2.5"

10 feet of 3"

TOTAL FOR WIRES175 feet of #6375 feet of #4700 feet of #310 feet of #2

1430 feet of #4/040 feet of 250 kcmil

ALTERNATIVE DESIGN

HDPS to 30 KVA Transformer5 feet of .75" conduit

15 feet of #8 wire5 feet of #8 ground wire

30 KVA to LGS Panel5 feet of 1.25" conduit

20 feet of #2 wire5 feet of #8 ground wire

HDPS Panel to 15 KVA Transformer165 feet of .75" conduit

495 feet of #10 wire165 feet of #8 ground wire

15 KVA to LMW Panel5 feet of 1" conduit20 feet of #6 wire

5 feet of #8 ground wire

HDPS Panel to 30 KVA Transformer15 feet of .75" conduit

45 feet of #8 wire15 feet of #8 ground wire

30 KVA to L1S Panel5 feet of 1.25" conduit

20 feet of #2 wire5 feet of #8 ground wire

HMPS Panel to 15 KVA Transformer5 feet of .75" conduit15 feet of #10 wire5 feet of #8 wire

15 KVA to LPS Panel5 feet of 1" conduit20 feet of #6 wire

5 feet of #8 ground wire

HMPS Panel to 30 KVA Transformer155 feet of .75" conduit

465 feet of #8 wire155 feet of #8 wire

30 KVA to LS3 Panel5 feet of 1.25" conduit

20 feet of #2 wire5 feet of #8 ground wire

HMPS Panel to 30 KVA Transformer170 feet of .75" conduit

510 feet of #8 wire170 feet of #8 ground wire

30 KVA to L2S Panel5 feet of 1.25" conduit

15 feet of #2 wire5 feet of #8 ground wire

TOTAL FOR CONDUITS515 feet of .75"

10 feet of 1" 20 feet of 1.25"

TOTAL FOR WIRES510 feet of #101560 feet of #840 feet of #675 feet of #2

TRANSFORMER CALCULATIONS

CALCULATIONS FOR 30KVA TRANSFORMER

PRIMARY SIDE

IprI = KVA = 30 KVA = 36.1 A1.73 * KV 1.73 * .48

Overcurrent Device

36.1 * 1.25 = 45.1 (Factor 1.25 chosed from Table 450-3(B))

Use a 50 A breaker ( Standard rating from 240.6(A) of NEC)

High Voltage Conductors

Use 3 - #8 AWG wire (Assuming 75 degreeC Cooper, THW) Table 310-16

Ground wire

Use 1 - #8 AWG wire (According to chart 250.66 of NEC)

Conduit

Use 3/4" conduit (According to table C1, Annex C of NEC

SECONDARY SIDE

IprI = KVA = 30 KVA = 83.4 A1.73 * KV 1.73 * .208

Overcurrent Device

83.4 * 1.25 = 104 (Factor 1.25 chosed from Table 450-3(B))

Use a 110 A breaker ( Standard rating from 240.6(A) of NEC)

High Voltage Conductors

Use 3 - #2 AWG wire (Assuming 75 degreeC Cooper, THW) Table 310-16

Ground wire

Use 1 - #8 AWG wire (According to chart 250.66 of NEC)

Conduit

Use 1-1/4" conduit (According to table C1, Annex C of NEC)

CALCULATIONS FOR 15KVA TRANSFORMER

PRIMARY SIDE

IprI = KVA = 15 KVA = 18.1 A1.73 * KV 1.73 * .48

Overcurrent Device

18.1 * 1.25 = 22.6 (Factor 1.25 chosed from Table 450-3(B))

Use a 25 A breaker ( Standard rating from 240.6(A) of NEC)

High Voltage Conductors

Use 3 - #10 AWG wire (Assuming 75 degreeC Cooper, THW) Table 310-16

Ground wire

Use 1 - #8 AWG wire (According to chart 250.66 of NEC)

Conduit

Use 3/4" conduit (According to table C1, Annex C of NEC)

SECONDARY SIDE

IprI = KVA = 15 KVA = 41.7 A1.73 * KV 1.73 * .208

Overcurrent Device

41.7 * 1.25 = 52.1 (Factor 1.25 chosed from Table 450-3(B))

Use a 60 A breaker ( Standard rating from 240.6(A) of NEC)

High Voltage Conductors

Use 3 - #6 AWG wire (Assuming 75 degreeC Cooper, THW) Table 310-16

Ground wire

Use 1 - #8 AWG wire (According to chart 250.66 of NEC)

Conduit

Use 1" conduit (According to table C1, Annex C of NEC)