• Three types of load for 1 sqft
*Lighting load - 2.5 w
* Power load - 1.5w / 4 w
* Back up - 0.5 / 4.5 w
- Cellar with 1st floor, 2nd floor and 3rd floor.
1st floor :
Shop 1 - 945 sqft
Shop 2 - 2500 sqft
Shop 3 - 1500 sqft
Shop 4 - 995 sqft
Shop 5 - 2400 sqft
Common load - 3000 sqft
2nd floor :
Shop 1 - 700 sqft
Shop 2 - 1200 sqft
Shop 3 - 1600 sqft
Shop 4 - 1900 sqft
Stall (10) - 10 kw
Common load (stall) - 2000 sqft
Common load - 2000 sqft
3rd floor :
Projector - 50 kw
AC - 60 kw
Sound system - 25 kw
Other - 10 kw
Total. = 145 kw × 0.8 = 116 kw
Screen 1 - 116 kw
Screen 2 - 116 kw
Screen 3 - 116 kw
Snack area - 1500 sqft
Common area - 1200 sqft
1st floor :
2nd floor :
3rd floor :
Common load :
Left each kw - 12.5 kw/ qty - 4 no. / D.F= 1
Escalator each kw - 25kw /qty - 2no. / D.F= 1
Water pump each kw - 15kw/qty - 1 no./ D.F = 0.8
Fire fighting pump - 100 kw /qty - 1no./ D.F=0.1
Cellar = 8000 sqft -0.5 w /qty - 4
= 12.5 × 4 = 50,
= 25 × 2 = 50,
= 15 × 0.8 = 12,
= 100 × 0.1 =10,
= 0.5 × 4 = 2.
T.C.L = 50+50+12+10+2 = 124 kw
Therefore, T.C.L = 1+2+3 floor+ common load
= 164.35+ 238.15+ 387.48+ 124
= 914 kw
Loading factor : 914 ÷ 0.7 = 1305.71
KVA = KW / P.F. = 1305/0.8 = 1631.20 KVA
Therefore, 1750 kVA transformer is recommended.
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