Electrical Panel Load Calculation(28!5!11)(1)

ELECTRICAL LOAD CALCULATION FOR PANEL

SYSTEM DETAILS LOAD DETAILS ON MAIN PANEL

System Voltage (RL-YL) 415 Volt Load on R Phase 38

System Voltage (YL-BL) 415 Volt Load on Y Phase 38

System Voltage (YL-BL) 415 Volt Load on BPhase 38

System Voltage Max (L-L) 415 Volt Voltage Difference 0.00

System Voltage (L-N) 240 Volt UnBalance Neutral Current 0

Ambient Temperature (K1) 40 °C Expected Temp Rise 0

Ground Temperature (K2) 35 °C Total Load (L-L) 114

Soil Thermal Resistivity Not Known Ω Unbalance Current (Amp) 0

Nature of Soil (K3) Wet Soil Total Connected Hp 74

Total Connected KVA 82

Details of Connected Electrical Load on Main Panel

Phase P.F

Air Ground

1 15 Kw Feeder.I 3 Ph 0.8 0.9 Ground 0.25 mt

2 40 Kw Feeder.II 3 Ph 0.6 0.9 Air 3 1

3 75 Kw Feeder.III 3 Ph 0.5 0.9 Ground

4

5

6

7

8

9

10

11

12

13

14

15

Note:

SYSTEM DETAILS

1 Enter Your System Detsils

MAINPANEL DETAILS

1 Enetr Your Main Panel Capacity and Size of Incoming Cable of Main Panel

2 Enter Outgoing Circuit Capacity of Main Panel

ELECTRICAL LOAD DETAILS OF MAIN PANEL

1 Enter connected Electrical Load in KW or HP

2 Select Your Electrical Circuit3 Select Your Electrical Circuit's Phase (3 Phase or 1 Phase)4 Enter P.F5 Select Cable installation media (Ground/Air)6 Enter Appropiate Details for Air or Ground Media7 Enter Allowable Voltage Drop for that Circuit8 Enter Total Length of that Circuit9 Select Type of Cable

Sr. No

Total Connected

Load

Hp / Kw

OutGoing Circuit

Load on

Phase

Demand Factor

Cable Installation Media

No of Cable/ Tray

No of Tray

No of Cable/ Trench

Distance Between

Cable

Page 2: Electrical Panel Load Calculation(28!5!11)(1)

ELECTRICAL LOAD CALCULATION FOR PANEL

LOAD DETAILS ON MAIN PANEL MAIN PANEL DETAILS FEEDER WISE ELECTRICAL LOAD ON MAIN PANEL

Amp INCOMING SITE Load on Feeder R Y

Amp Main Panel Capacity: 3000 KVA Feeder.I 6 6

Amp Main Panel Amper Capacity: 4174 Amp Feeder.II 12 12

% Main Cable (From Source to M.Panel): 3cx630 Feeder.III 19 19

Amp Main Cable Current Capacity: Amp Load on Cable 38 Amp Feeder.IV 0 0

°C :Amper Capacity of Out Going Feeders: Feeder.V 0 0

Amp Feeder.I Amp Feeder.VI Amp Feeder.VI 0 0

% Feeder.II Amp Feeder.VII Amp Feeder.VII 0 0

Kw Feeder.III Amp Feeder.VIII Amp Feeder.VIII 0 0

KVA Feeder.IV Amp Feeder.IX Amp Feeder.IX 0 0

Feeder.V Amp Feeder.X Amp Feeder.X 0 0

Details of Connected Electrical Load on Main Panel

Type of Cable

Cable SelectionSize Type

3 3cx6 LT XLPE AL 12 13.333 19 #N/A 50 #N/A #N/A

3cx16 LT XLPE AL 24 26.667 37 46 70 #DIV/0! #DIV/0!

37.5 41.667 58 #N/A

Designed: Jignesh.Parmar www.jiguparmar.com

No. of runs of Cable

Allowable voltage

drop (%)

Cable Length (Meter)

Consumed Load(Kw)

Load (Kva)

Full Load Current (Amp)

Full Load Current

After Derating

(Amp)

Current Capacity of Cable (Amp)

Actual Voltage

Drop (%)Alu/Cu

http://www.jiguparmar.com/

Page 3: Electrical Panel Load Calculation(28!5!11)(1)

FEEDER WISE ELECTRICAL LOAD ON MAIN PANEL

B Status

6 Amp Over Load12 Amp Over Load19 Amp Over Load0 Amp0 Amp0 Amp0 Amp0 Amp0 Amp

0 Amp

Details of Connected Electrical Load on Main Panel

Cable Selection Cable Design Remarks

#N/A #N/A

#DIV/0! #DIV/0!

Designed: Jignesh.Parmar www.jiguparmar.com

http://www.jiguparmar.com/

Page 4: Electrical Panel Load Calculation(28!5!11)(1)

###

Nill

Cable Dia

0.125 mt

0.25 mt

0.5 mt

###

R

Feeder.III

Feeder.IV

Feeder.V

Feeder.VI

Feeder.VII

Feeder.VIII

Feeder.IX

Feeder.X

Page 5: Electrical Panel Load Calculation(28!5!11)(1)

STANDARD MOTOR RATINGS FLPF 3/4THPF FLEFF 3/4THEFF

1 0.18 0.65 0.58 0.5 0.462 0.22 0.6 0.55 0.58 0.533 0.37 0.64 0.58 0.65 0.584 0.55 0.7 0.64 0.72 0.675 0.75 0.7 0.65 0.74 0.696 1.1 0.76 0.7 0.75 0.77 1.5 0.79 0.72 0.77 0.728 2.2 0.82 0.76 0.8 0.759 3.7 0.83 0.78 0.82 0.81

10 5.5 0.84 0.79 0.85 0.8311 7.5 0.85 0.81 0.87 0.8712 9.3 0.85 0.81 0.88 0.8813 11 0.85 0.82 0.89 0.8914 15 0.86 0.83 0.9 0.915 18.5 0.86 0.84 0.91 0.9116 22 0.87 0.84 0.91 0.9117 30 0.89 0.86 0.92 0.9218 37 0.9 0.89 0.925 0.92519 45 0.9 0.89 0.93 0.9320 55 0.86 0.82 0.935 0.93521 75 0.89 0.88 0.94 0.9422 90 0.9 0.86 0.945 0.94523 110 0.9 0.86 0.945 0.94524 132 0.9 0.86 0.948 0.94825 160 0.9 0.86 0.953 0.95326 180 0.9 0.86 0.953 0.95327 200 0.9 0.86 0.955 0.95528 225 0.87 0.82 0.948 0.9429 250 0.87 0.82 0.945 0.935

CABLE DATACONDUCTOR RESISTANCE AT 70 DEG

X-SECTION PVC HRPVC LT XLPE

AL CU AL CU AL1 3cx1.5 21.747 14.480 21.720 12.200 23.1702 3cx2.5 14.538 8.870 14.520 7.560 15.5003 3cx4 8.903 5.520 8.890 4.700 9.4804 3cx6 5.539 3.685 5.530 3.110 5.9005 3cx10 3.701 2.190 3.700 1.840 3.9406 3cx16 2.295 1.376 2.290 1.160 2.4407 3cx25 1.442 0.870 1.440 0.734 1.5408 3cx35 1.043 0.627 1.042 0.529 1.1109 3cx50 0.770 0.463 0.770 0.391 1.110

10 3cx70 0.532 0.321 0.532 0.270 0.56711 3cx95 0.384 0.231 0.385 0.195 0.410

Page 6: Electrical Panel Load Calculation(28!5!11)(1)

12 3cx120 0.304 0.183 0.304 0.154 0.32413 3cx150 0.248 0.148 0.248 0.126 0.26414 3cx185 0.197 0.119 0.198 0.100 0.21015 3cx240 0.150 0.090 0.152 0.076 0.16016 3cx300 0.120 0.072 0.122 0.061 0.12817 3cx400 0.094 0.056 0.096 0.048 0.10018 3cx500 0.073 0.044 0.076 0.037 0.07719 3cx630 0.056 0.034 0.061 0.029 0.06020 1cx120 0.304 0.154 0.32421 1cx150 0.248 0.126 0.26422 1cx185 0.198 0.100 0.21023 1cx225 0.171 0.850 0.18024 1cx240 0.152 0.076 0.16025 1cx300 0.122 0.061 0.12826 1cx400 0.096 0.048 0.10027 1CX500 0.076 0.037 0.07728 1cx630 0.061 0.029 0.060

SYSTEM VOLTAGE (Temp. Derating factor)

1 240 PVC HR PVC HT XLPE2 415 1 25 1.25 1.16 1.143 1100 2 30 1.16 1.1 1.14 3300 3 35 1.09 1.05 1.045 6600 4 40 1 1 16 11000 5 45 0.9 0.94 0.957 33000 6 50 0.8 0.88 0.9

7 55 0.69 0.82 0.851 Ph 8 60 0.62 0.74 0.83 Ph

Current Rating Corrrection Factor:K1

CABLE TYPE AL CU1 PVC #REF! #REF! Insulation

2 HR PVC #REF! #REF! PVC

3 LT XLPE #REF! #REF! 10 1.224 HT XLPE #REF! #REF! 15 1.175 EPR CSP #REF! #REF! 20 1.12

25 1.06CONDUCTOR current 35 0.94

1 AL #REF! 40 0.872 CU #REF! 45 0.79

50 0.7155 0.61

resistance 60 0.5CABLE TYPE AL CU 65 0

1 PVC #REF! #REF! 70 02 HRPVC #REF! #REF! 75 03 LT XLPE #REF! #REF! 80 04 HT XLPE #REF! #REF!5 EPR CSP #REF! #REF!

Ambient Temp©

Page 7: Electrical Panel Load Calculation(28!5!11)(1)

CONDUCTOR res.1 AL #REF!2 CU #REF!

reactanceCABLE TYPE AL CU

1 PVC #REF! #REF!2 HRPVC #REF! #REF!3 LT XLPE #REF! #REF!4 HT XLPE #REF! #REF!5 EPR CSP #REF! #REF!

CONDUCTOR reac.1 AL #REF!2 CU #REF!

NO. OF RUNS1 12 23 34 45 56 67 78 89 9

10 1011 1112 1213 1314 1415 1516 1617 1718 1819 1920 20

Page 8: Electrical Panel Load Calculation(28!5!11)(1)

CABLE DATA

CURRENT RATING AT 40 DEG (LAID IN TUNNEL)X-SECTION PVC HRPVC LT XLPE

AL CU AL CU AL CU1 3cx1.5 14 17 16 212 3cx2.5 18 24 22 293 3cx4 23 30 28 37 31 364 3cx6 30 39 37 48 50 475 3cx10 39 57 49 63 67 626 3cx16 50 65 62 81 70 797 3cx25 63 66 85 110 96 1088 3cx35 77 110 105 134 117 1329 3cx50 95 135 128 165 142 162

10 3cx70 130 155 159 201 179 19811 3cx95 155 200 189 244 221 24012 3cx120 180 230 220 281 257 27613 3cx150 205 255 250 323 292 31814 3cx185 240 305 293 372 337 36615 3cx225 255 335 323 407 379 40216 3cx240 280 355 342 433 399 42617 3cx300 315 400 384 488 455 48018 3cx400 375 455 458 555 530 54619 3cx500 425 521 519 635 612 61220 3cx630 480 674 586 759 707 68521 1cx120 220 280 268 342 268 33622 1cx150 250 320 305 390 309 38423 1cx185 290 370 354 451 360 44424 1cx225 315 400 390 483 408 47925 1cx240 335 425 409 519 433 51026 1cx300 380 475 464 580 501 57027 1cx400 435 550 531 671 596 66028 1CX500 480 590 586 720 693 70829 1cx630 550 660 671 805 814 825

CABLE DATACONDUCTOR RESISTANCE AT 70 DEG CONDUCTOR REACTANCE AT 50 Hz

LT XLPE HT XLPE -upto 6.6kv(E) X-SECTION PVC

CU AL CU CU AL15.500 1 3cx1.5 0.1269.480 8.210 2 3cx2.5 0.1195.900 5.090 3 3cx4 0.1163.940 3.390 4 3cx6 0.1102.340 1.950 5 3cx10 0.1001.470 1.240 6 3cx16 0.0970.930 1.540 0.930 0.795 7 3cx25 0.0970.671 1.110 0.671 0.565 8 3cx35 0.0970.495 0.820 0.495 0.393 9 3cx50 0.0940.343 0.567 0.343 0.277 10 3cx70 0.0900.247 0.410 0.247 0.210 11 3cx95 0.090

EPR CSP

Page 9: Electrical Panel Load Calculation(28!5!11)(1)

0.196 0.324 0.196 0.164 12 3cx120 0.0870.159 0.264 0.159 0.132 13 3cx150 0.0870.127 0.210 0.127 0.108 14 3cx185 0.0870.096 0.160 0.096 0.082 15 3cx240 0.0870.077 0.130 0.077 0.065 16 3cx300 0.0860.060 0.100 0.060 0.040 17 3cx400 0.0860.047 0.077 0.047 0.039 18 3cx500 0.0790.036 0.060 0.036 0.031 19 3cx630 -0.196 0.324 0.196 0.164 20 1cx120 0.0870.159 0.264 0.159 0.132 21 1cx150 0.0860.127 0.210 0.127 0.108 22 1cx185 0.0850.107 0.180 0.110 0.093 23 1cx225 0.0840.096 0.160 0.096 0.082 24 1cx240 0.0830.077 0.130 0.077 0.065 25 1cx300 0.0830.060 0.100 0.060 0.040 26 1cx400 0.0820.047 0.077 0.047 0.039 27 1CX500 0.0810.036 0.060 0.036 0.031 28 1cx630 0.081

(Temp. Derating factor) (Grouping factor)==No of Tray

EPR CSP 1 2 3 4 61.28 1 1 1 1 1 11.22 2 0.84 0.8 0.78 0.77 0.76

1.134 3 0.8 0.76 0.74 0.73 0.721 4 0.78 0.74 0.72 0.71 0.7

0.975 5 0.77 0.73 0.7 0.69 0.680.878 6 0.75 0.71 0.7 0.68 0.680.768 7 0.74 0.69 0.675 0.66 0.660.658 8 0.73 0.69 0.68 0.67 0.66

Corrrection Factor:K1 Ground Corrrection Factor:K2 Corrrection Factor:K3

Soil Thermal Resistivity: 2.5 k.m/WInsulation Insulation Resistivity K3

XLPE/EPR PVC XLPE/EPR 1 1.18

1.15 10 1.1 1.07 1.5 1.11.12 15 1.05 1.04 2 1.051.08 20 0.95 0.96 2.5 11.04 25 0.89 0.93 3 0.960.96 35 0.77 0.890.91 40 0.71 0.85 Corrrection Factor:K30.87 45 0.63 0.8 Nature of Soil K30.82 50 0.55 0.76 Very Wet Soil 1.210.76 55 0.45 0.71 Wet Soil 1.130.71 60 0 0.65 Damp Soil 1.050.65 65 0 0.6 Dry Soil 10.58 70 0 0.53 Very Dry Soil 0.860.5 75 0 0.46

0.41 80 0 0.38

No of Cable/Tray

Ground Temp©

Page 10: Electrical Panel Load Calculation(28!5!11)(1)

3cx6 LT XLPECurrent RatingCABLE TYPE ALPVC 30HR PVC 37LT XLPE 50HT XLPEEPR CSP 463cx16 LT XLPECurrent RatingCABLE TYPE ALPVC 50HR PVC 62LT XLPE 70HT XLPEEPR CSP 85

0 0Current RatingCABLE TYPE ALPVC #N/AHR PVC #N/ALT XLPE #N/AHT XLPE #N/AEPR CSP #N/A

Page 11: Electrical Panel Load Calculation(28!5!11)(1)

0 0Current RatingCABLE TYPE ALPVC #N/AHR PVC #N/ALT XLPE #N/AHT XLPE #N/AEPR CSP #N/A

0 0Current RatingCABLE TYPE ALPVC #N/AHR PVC #N/A

Page 12: Electrical Panel Load Calculation(28!5!11)(1)

LT XLPE #N/AHT XLPE #N/AEPR CSP #N/A

0 0Current RatingCABLE TYPE ALPVC #N/AHR PVC #N/ALT XLPE #N/AHT XLPE #N/AEPR CSP #N/A

3cx630 0Current RatingCABLE TYPE ALPVC 480HR PVC 586LT XLPE 707HT XLPE 706.44EPR CSP 265

Page 13: Electrical Panel Load Calculation(28!5!11)(1)

CABLE DATA

CURRENT RATING AT 40 DEG (LAID IN TUNNEL)HT XLPE -upto 6.6kv(E) EPR CSP

AL CU CU

2635466485

100 115 114121 140 140145 175 175181 215 216221 255 260254 290 303290 335 349330 370 398369 415 372390 440 348450 505 325525 600 304609 714 284706 850 265277 368 299318 422 343370 490 391412 547 366440 580 342509 665 320600 805 299700 900 279817 1030 261

CONDUCTOR REACTANCE AT 50 Hz

PVC HRPVC LT XLPE HT XLPE -upto 6.6kv(E) EPR CSP

CU AL CU AL CU AL CU CU0.119 0.092 0.109 0.107 0.107 0.1160.115 0.087 0.105 0.099 0.099 0.1090.112 0.081 0.101 0.093 0.093 0.1060.104 0.073 0.095 0.088 0.088 0.1000.099 0.064 0.089 0.084 0.084 0.0960.090 0.055 0.086 0.081 0.081 0.0910.088 0.054 0.084 0.081 0.081 0.116 0.116 0.0880.086 0.050 0.082 0.078 0.078 0.111 0.111 0.0860.086 0.050 0.079 0.075 0.075 0.104 0.104 0.0820.083 0.046 0.076 0.074 0.074 0.100 0.100 0.0790.083 0.043 0.076 0.072 0.072 0.095 0.095 0.077

Page 14: Electrical Panel Load Calculation(28!5!11)(1)

0.082 0.042 0.074 0.071 0.071 0.092 0.092 0.0760.082 0.042 0.074 0.072 0.072 0.089 0.089 0.0760.082 0.042 0.074 0.072 0.072 0.087 0.087 0.0760.079 0.041 0.073 0.071 0.071 0.085 0.085 0.0750.079 0.040 0.073 0.071 0.071 0.082 0.082 0.0750.079 0.040 0.073 0.070 0.070 0.079 0.079 0.0750.079 0.040 0.073 0.070 0.070 0.073 0.073 0.075

- 0.040 0.725 0.070 0.070 0.068 0.068 0.0740.074 0.080 0.074 0.097 0.097 0.092 0.092 0.0750.074 0.082 0.074 0.094 0.094 0.089 0.089 0.0750.074 0.079 0.074 0.093 0.093 0.087 0.087 0.0750.074 0.077 0.074 0.091 0.091 0.086 0.086 0.0750.073 0.075 0.073 0.090 0.090 0.085 0.085 0.0740.073 0.072 0.073 0.088 0.088 0.082 0.082 0.0740.073 0.070 0.073 0.087 0.087 0.079 0.079 0.0740.073 0.069 0.073 0.086 0.086 0.073 0.073 0.0740.725 0.067 0.725 0.084 0.084 0.068 0.068 0.073

(Grouping factor)==No of Tray

81 1

0.75 20.71 30.69 40.67 60.66 80.640.64

Correction Factor(K4)(Ground Cable Dist)

No of Circuit Nill cable Dia 0.125m 0.25m 0.5m1 1 1 1 1 1

2 0.75 0.8 0.85 0.9 0.93 0.65 0.7 0.75 0.8 0.854 0.6 0.6 0.7 0.75 0.85 0.55 0.55 0.65 0.7 0.86 0.5 0.55 0.6 0.7 0.8

Page 15: Electrical Panel Load Calculation(28!5!11)(1)

AL resistanceCONDUCTOR current CABLE TY AL CU CONDUCTOR res.

CU AL 50 PVC 5.539 3.685 AL 5.9039 CU 47 HRPVC 5.53 3.11 CU 3.9448 LT XLPE 5.9 3.9447 HT XLPE

EPR CSP 3.39 3.3946

AL resistanceCONDUCTOR current CABLE TY AL CU CONDUCTOR res.

CU AL 70 PVC 2.295 1.376 AL 2.4465 CU 79 HRPVC 2.29 1.16 CU 1.4781 LT XLPE 2.44 1.4779 HT XLPE

EPR CSP 1.24 1.2485