IEEE P1665/D15, Jul 2009

IEEE P1665/D15, Jul 2009 is a draft guide focused on the rewind of synchronous generators rated 1 MVA and above, covering equipment used in 50 and 60 Hz power systems. It is relevant to power, energy, and industrial applications where generator repair and refurbishment must be controlled and documented. By addressing rewind practices for these machines, IEEE P1665/D15, Jul 2009 supports more consistent engineering decisions and helps maintain expected performance after major maintenance.

About IEEE P1665/D15, Jul 2009

This draft guide provides technical direction for rewinding synchronous generators, with attention to generators of 1 MVA and above operating at 50 or 60 Hz. It is intended to help engineers, repair facilities, and asset owners manage rewind work in a structured way, particularly when winding replacement can affect electrical characteristics, insulation performance, and service life. IEEE P1665/D15, Jul 2009 is most useful where rewind quality, documentation, and acceptance criteria matter to the reliability of rotating electrical equipment.

Where is IEEE P1665/D15, Jul 2009 used?

IEEE P1665/D15, Jul 2009 is used in maintenance, overhaul, and repair environments for synchronous generators in power generation and industrial power systems. It is especially relevant to facilities handling large rotating machines, such as utility plants, captive power installations, and heavy industrial sites that rely on generator rewind work. The guide supports engineering teams, service shops, and procurement staff when evaluating rewind methods, workmanship, and technical requirements for machines that must return to dependable operation.

Importance in practice

In practice, the guide helps reduce uncertainty during generator rewind projects by encouraging consistent technical decisions and better control of repair quality. That matters because rewind work can influence insulation integrity, thermal behavior, electrical performance, and long-term reliability. Using IEEE P1665/D15, Jul 2009 can improve specification writing, inspection planning, and acceptance testing, while also helping owners compare contractor approaches more fairly. For critical rotating equipment, that consistency can lower risk and support safer return-to-service decisions.

• Rewind guidance for synchronous generators
• Applicable to 50 Hz and 60 Hz systems
• Intended for machines rated 1 MVA and above
• Relevant to repair, overhaul, and inspection work
• Supports quality control and performance consistency