Power Systems Skill

At a Glance

Design and validate electrical power distribution systems from utility service entrance through rack-level PDUs, covering all voltage classes from 120V single-phase through 480V three-phase.

Activates on: InfrastructureRequest type='power', any load calculation, conductor sizing, transformer/UPS/PDU selection, redundancy architecture design.

Key capabilities:

• NEC Article 220 load calculations (connected load and optional 220.87 methods)
• NEC Table 310.16 conductor sizing with temperature and conduit fill corrections
• Transformer sizing (kVA, K-factor for non-linear loads, impedance selection)
• UPS selection (online double-conversion, runtime calculation, redundancy modes)
• PDU selection (floor-standing and rack PDU, whip ratings, phase balance)
• Redundancy architectures: N, N+1, 2N, and 2N+1 with topology diagrams
• Voltage classes: 120V, 208V, 240V, 277V, 400V, 480V
• DC distribution patterns: 380V DC bus, 48V telecom, 12V on-board
• Safety: arc flash boundaries, GFCI/GFP requirements, shock thresholds