- EASA Standard AR100-1998 Recommended Practice for the Repair of Rotating Electrical Apparatus
- IEC 60034-1 (1999-08) Consolidated Edition, Rotating Electrical Machines Part I: Rating & Performance Ed. 10.2.
- IEEE 43-2000 Recommended Practice for Testing Insulation Resistance of Rotating Machinery
- IEEE 95-1977 Guide for Insulation Maintenance of Large AC Rotating Machinery.
- IEEE 112-1991 Test Procedures for Polyphase Induction Motors and Generators
- IEEE 113-1985 Guide on Test Procedures for DC Machine
- IEEE 115-1983 Test Procedures for Synchronous Machines
- IEEE 429-1972 Evaluation of Sealed Insulation Systems for AC Electric Machinery Employing Form-Wound Stator Coils.
- IEEE 432-1992 Guide for Insulation Maintenance for Rotating Electrical Machinery (5 HP to less than 10,000 HP).
- IEEE 434-1973 Guide for Functional Evaluation of Insulation Systems for Large HighVoltage Machines.
- IEEE 522-1992 Guide for Testing Turn-to-Turn Insulation on Form-Wound Stator Coils for Alternating-Current Rotating Electric Machines.
- IEEE 1415-2006 Guide for Induction Machinery Maintenance Testing and Failure Analysis.
- NEMA MG1-1993 Motors & Generators.

Protocols
- Insulation resistance measuring
- Insulation megohm measuring
- Polarization index (PI)
- Step voltage
- Surge test (turn to turn test
- Dielectric rigidity testing
- Testing by DC high voltage
- Oscilographic monitoring of electric parameters
- Core loss testing with an infrared camera
- Rotor shaft run out
- Balancing
- No-load testing