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Industrial Case Studies

Manufacturing facilities, motor feeders, and heavy industrial equipment

Industrial electrical systems present unique voltage drop challenges due to high current loads, long feeder runs, and the critical nature of production equipment. Motor starting current can be 6-8 times running current, making voltage drop during startup a major consideration. These case studies cover VFD installations, motor feeders, and industrial power distribution.

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IndustrialManufacturing

Manufacturing Plant: 100HP Motor Feeder Design

Designing a 480V three-phase feeder for a 100HP motor with 600ft run, considering both running and starting current.

600 ft
Distance
100 HP
Motor
2.1%
Running Drop
Challenge

New production line required a 100HP motor located 600 feet from the MCC. Motor starting current (6x FLA) needed to be considered for voltage drop during startup.

Solution

Used 3/0 AWG copper conductors in steel conduit. Calculated 2.1% drop at running current and 12.6% during starting. Added soft starter to limit inrush.

Result

Motor operates smoothly with soft starter limiting starting drop to acceptable levels. Running efficiency optimized.

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Explore Other Categories

Residential

Home electrical projects including EV chargers, detached structures, and long circuit runs

1 case study

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Office buildings, data centers, retail facilities, and commercial HVAC systems

2 case studies

Renewable Energy

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Agricultural

Farm irrigation systems, remote pump stations, and agricultural equipment

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