Att_05_Electrical_Load_Analysis_sample_05Jun2018.pdf

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65' Dive Support Boat
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N0002418R2209
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AC ELECTRICAL LOAD ANALYSIS SAMPLE WITH USAGE FACTORS

Consumer

OEM P/N

Qty kW/unit

Phase

Volts

Amps

PF

Total kW

Eng. Rm Fans 1 240 DER Fans 1 240 Water Heater 1 240 Fresh Water Pmp 1 240 LP Compressor 1 240 Battery Charger 1 120 Eng. Preheater 1 120 Black Water Pmp 1 240 Defogger 1 120

Eng Rm Heater (HVAC) 1 120 Heater (HVAC) 1 120 Fan (HVAC) 1 120 Seawater Pmp (HVAC) 1 240 Condenser (HVAC) 1 240 Evaporator (HVAC) 1 240

Lighting 1 120 lighting (below deck) 1 120 lighting (weather) 1 120

Receptacle (aft dk) 1 120 Receptacle (DER) 1 120 Receptacle (cabin) 1 120 Receptacle (galley) 1 120 Receptacle (Eng Rm) 1 120 Receptacle (Monkey) 1 120 Receptacle (Laz) 1 120 Receptacle (PH) 1 120 Receptacle (240V) 1 240

Refrigerator 1 120 Microwave 1 120 Coffee Maker 1 120

240/120 Vac Totals

HPU 3 480

Receptacle (480V) 3 480 Dive Compressor 3 480 Seawater Pump 3 480 Boom Crane 3 480

480 Vac Totals

1. Tailor the first column of 'consumers' from above with details of the proposed design.

2. Input the value in the OEM/part number, Quantity and kW/unit columns.

3. Mathematically populate the remainder of the spreadsheet to perform the requisite analysis.

4. Total the load for each of the listed conditions (e.g. summer-shore, winter-transit, etc).

5. Use DDS 310-1, Rev. 1 Electrical Power Load Analysis (EPLA) for Surface Ships for AC equipment usage factors.

Summer Conditions Winter Conditions Shore Transit Dive Operations Shore Transit Dive Operations

Usage Factor

Load (kW)

Factor

Load (kW)

0.1 1 0.5 0.1 1 0.5

1 1 1 1 1 1

0.3 0.1 0.3 0.3 0.1 0.3

0.1 0.2 0.5 0.1 0.2 0.5

0.1 0 0.1 0.1 0 0.1

0.5 0 0 0.5 0 0

0.1 0 0 0.1 0 0

0.1 0.1 0.1 0.1 0.1 0.1

0 0.1 0.1 0 0.5 0.2

0 0 0 0.1 0.1 1 0 0 0 0.5 1 1 1 1 1 1 1 1 1 1 1 1 1 1

0.7 0.7 0.7 1 1 1 1 1 1 1 1 1

0.3 1 1 0.3 1 1

0.1 1 1 0.1 1 1

0.1 0.5 0.5 0.1 0.5 0.5

0.1 0.1 0.2 0.1 0.1 0.3

0.1 0.1 0.2 0.1 0.1 0.3

0.1 0.5 0.5 0.1 0.5 0.5

0.1 0.5 0.5 0.1 0.5 0.5

0.1 0.1 0.1 0.1 0.1 0.1

0.1 0 1 0.1 0 1

0.1 0 0 0.1 0 0

0.1 0.1 0.1 0.1 0.3 0.3

0.3 0.3 0.3 0.3 0.3 0.3

0.3 0.3 0.3 0.3 0.3 0.3

0 0 0.3 0 0 0.3

0.1 0 0.1 0.1 0 0.1

0.9 0 0.9 0.9 0 0.9

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