API 546

Brushless Synchronous Machines—500 kVA and Larger
API Std 546 | 3rd Edition | September 2008 | 2-Year Extension: November 2013 |

Covers the minimum requirements for form- and bar-wound brushless synchronous machines in petroleum-related industry service. The standard includes both synchronous motors and generators with two different rotor designs:
• the conventional salient-pole rotor with solid or laminated poles, and
• the cylindrical rotor with solid or laminated construction.