Ltb: 72.5-170d1 B Manual ((link))

This breaker is a workhorse of the medium-to-high voltage transmission grid. It uses SF6 gas for insulation and arc quenching. The (likely revision B) is crucial because it incorporates field updates from previous revisions—ignoring it could mean missing a critical torque specification.

Inspect all columns, porcelain housings, and mechanism cabinets for transit damage.

Table 2-1. Selected Data Capacity, Maximum: 72.5 Tons Width, Platform: 10 feet 6 inches Length, Platform: 28 feet Height, Platform (unloaded): 3 feet 6 inches Number of Tires: 16 Tire Size: 18.00-22.5 Tire Pressure: 80 psi Electrical System: 24-volt Brake System: Air brakes