Apprentice Training, mechanical & systems

Dry-Type Transformer Secondary Tap & Grounding

15 kVA 480V-to-120/208V dry transformer, FMC flex, grounding electrode conductor

Time: 3 h
People: Two
Level

Before you start

Clear 2 × 1.5 m of floor and lay out the parts.
21 parts and 35 fasteners in 6 steps.
You'll want a screwdrivers and a spanners and a tape measure and a drill and a spirit level and a trimming knife.
Tighten terminal lugs strictly to manufacturer torque values to prevent loose-phase fire hazards.
Verify tap changers on primary windings match site line voltage before energizing secondary circuits.

Apprentice Training & Risk NoticeEducational training demonstration only. Risk: Real-world structural lumber sizing, spans, and fastener schedules carry legal liability and must comply with local building codes (IRC/IBC/OSHA) and certified engineering.

Apprentice Training, mechanical & systems

Dry-Type Transformer Secondary Tap & Grounding

15 kVA 480V-to-120/208V dry transformer, FMC flex, grounding electrode conductor

Time: 3 h
People: Two
Level

Before you start

Clear 2 × 1.5 m of floor and lay out the parts.
21 parts and 35 fasteners in 6 steps.
You'll want a screwdrivers and a spanners and a tape measure and a drill and a spirit level and a trimming knife.
Tighten terminal lugs strictly to manufacturer torque values to prevent loose-phase fire hazards.
Verify tap changers on primary windings match site line voltage before energizing secondary circuits.