Generator Repair & Maintenance Services

Localized winding damage typically warrants targeted generator repairs, while widespread insulation or conductor degradation across the stator or rotor makes a full rewind the more cost-effective path. APG's engineering team assesses your machine's condition and delivers a clear recommendation before any work scope is committed.

A generator service at our Farmington facility includes incoming inspection, full electrical testing, NDE evaluation, and a documented condition report before any repair work begins. From there, APG builds the scope around what your specific unit requires — nothing more, nothing less.

APG performs on-site service repair for generators that cannot be transported, covering stator rewinds, horizontal stator restacking, HV bushing replacement, collector ring machining, hydrogen seal repair, and electrical diagnostics. Field work is executed to the same quality standard as our Farmington shop.

A structured maintenance repair program gives your power system a documented service history and scheduled inspection intervals that identify failure risk before it forces a unit offline. APG builds these programs around your equipment and outage schedule to replace reactive decision-making with predictable, planned maintenance.

APG services generator equipment from all major OEMs, including Siemens-Westinghouse, Mitsubishi, Brush, Alstom/ABB, and Hitachi/Toshiba. Regardless of the original manufacturer, our Farmington team repairs, rewinds, and upgrades your equipment to meet or exceed original specifications.