Equation 1. KVA

Equation 2. KVA

Equation 3. A

Equation 4. A

Equation 5. V

Equation 6. V

KVA

KW

KVAR

A

V

A

V

m

NO LOAD TYPE VOLTAGE POWER FACTOR %

RATING CURRENT

TYPE OPERATION

1 FIRE PUMP 400 80 81.19 DUTY

2 EPPIB06 400 80 9.11 DUTY

3 EPPIB02 400 80 18.95 DUTY

4 EPPIB08 400 80 12.75 DUTY

5 EPPIB12 400 80 11.65 DUTY

6 MCC-WTP02-05 400 80 243.21 DUTY

7 EPPIB11 400 80 26.92 DUTY

8 EPPIB17 400 80 13.91 DUTY

9 EPPIB14 400 80 51.21 DUTY

10 MCC-WTP01-05 400 80 36.08 DUTY

DEMAND LOAD 349.86 400 80 504.99

EMERGENCY LOAD 293.61 400 80 423.80

S GEN. 367.01 KVA

S TR. 437.33 KVA

No. From To Total load (KVA)

Circuit Voltage (V) If (D.F.)

Rating Current of Cable (A)

Selection Current of Cable (A)

Cable Size (mm2) Cable type

Rating current of

C.B.

Select C.B.

Total length (m)

Cable V.D

(mv/A/m)

Total Cable V.D (V)

V.D %V.D

Accumulation (%)

1 TR MDP 349.86 400 504.9794129 0.7 721.3991614 2x405 2(3x300+150)CU,

XLPE/PVC631.22427 800 10 0.0885 0.4469 0.1117 0.1117267

2 GEN MDP 293.61 400 423.7895313 0.7 605.4136162 2x310 2(3x185+95)CU,

XLPE/PVC529.73691 630 35 0.1205 1.7873 0.4468 0.4468331

3 MDP FIRE PUMP 56.25 400 81.1898816 0.7 115.9855451 180 4x70+35CU,

XLPE/PVC202.9747 250 95 0.52 4.0108 1.0027 1.1144217

4 MDP EPPIB06 6.31 400 9.107700496 0.7 13.01100071 45 4x6+6CU,

XLPE/PVC11.384626 32 5 5.191 0.2364 0.0591 0.1708243

5 MDP EPPIB02 13.13 400 18.95152259 0.7 27.07360369 60 4x10+10CU,

XLPE/PVC23.689403 40 90 3.094 5.2772 1.3193 1.4310369

6 MDP EPPIB08 8.83 400 12.74500719 0.7 18.20715313 60 4x10+10CU,

XLPE/PVC15.931259 40 15 3.094 0.5915 0.1479 0.2596006

7 MDP EPPIB12 8.07 400 11.64804168 0.7 16.64005954 60 4x10+10CU,

XLPE/PVC14.560052 40 20 3.094 0.7208 0.1802 0.2919219

8 MDP MCC-WTP02-05 168.50 400 243.2088009 0.7 347.4411441 365 4x240+120CU,

XLPE/PVC304.011 400 45 0.201 2.1998 0.55 0.6616826

9 MDP EPPIB11 18.65 400 26.9189563 0.7 38.45565186 60 4x10+10CU,

XLPE/PVC33.648695 40 25 3.094 2.0822 0.5205 0.632272

10 MDP EPPIB17 9.64 400 13.91414149 0.7 19.87734498 60 4x10+10CU,

XLPE/PVC17.392677 40 50 3.094 2.1525 0.5381 0.6498561

11 MDP EPPIB14 35.48 400 51.21096888 0.7 73.15852697 102 4x25+16CU,

XLPE/PVC64.013711 80 40 1.276 2.6138 0.6535 0.7651787

12 MDP MCC-WTP01-05 25.00 400 36.08439182 0.7 51.54913118 75 4x16+16 CU, XLPE/PVC 45.10549 63 95 1.982 6.7943 1.6986 0.2919219

If = Full Load Current

2. TRANSFORMER BUILDING PANEL EPPIB06 6.31KVA (REFER TO 05-IB06-EE-101).3. WATER PUMP ROOM PANEL EPPIB02 13.13KVA (REFER TO 05-IB02-EE-101).4. GUARD ROOM PANEL EPPIB08 8.83KVA (REFER TO 05-IB08-EE-101).5. ADMINSTRATION BUILDING PANEL EPPIB12 8.07KVA (REFER TO 05-IB12-EE-101).

7. GENERATOR ROOM PANEL EPPIB11 18.65KVA (REFER TO 05-IB11-EE-101).8. DRAINAGE PUMP ROOM EPPIB17 7.14KVA (REFER TO 05-IB17-EE-101).9. R.O BUILDING PANEL EPPIB14 35.48KVA (REFER TO 05-IB14-EE-101).

SUBJECT: Calculation of Load & Load Study of (05-WTP)

Source of Feeding:

2. ONE GENERATOR 400KVA

P = Three phase Active Power

Rating current of C.B. = If × 1.25 .

Single phase voltage drop = 2 x I x L x VD(mV/A/m) / 1000

S motor =√3×I×V.

S Ge =√3×I×V.

PREPARED :

REVISED :

CHECKED :

PROJECT:

Connected load:

1. 2(3CX300m²+ 1X150mm²G) PVC , 0.6/1.2 KV FEEDER FROM SEC KWHM BOX

MDB (WATER TREATMENT PLANT STATION):

DATE :

V = Voltage

SELECTION CABLE ,C.B. AND V.D CALCULATION :

1. FIRE PUMP 45KW.

10. MCC-WTP01-05 PANEL 25KVA.

6.31

Rating current of cables = If / D.F.

L = Length of Circuits

All Equations:

56.25

SIZING OF GENERATOR 1x400KVA

13.13

8.07

SIZING OF TRANSFORMER 1x500KVA

25.00

6. MCC-WTP02-05 PANEL 168.5KVA.

8.83

VD = Voltage Drop

Three phase voltage drop = I x L x VD (mV/A/m) / 1000

Symbols :S = Three phase Apparent Power

18.65

9.64

35.48

168.50

LOAD CALCULATION:

POWER (KVA)

Q = Three phase Reactive Power

I = Current