Rotating electrical machines
DC, pulsating and AC motors and generators, asynchronous and universal machines.
DC resistance of windings
DC winding resistance measurement in the practically cold state per DSTU GOST 2582:2017 and DSTU EN 60349-1:2022 — baseline check of traction motors and generators.
Heat-run (temperature-rise) test
Temperature-rise test for continuous, intermittent and short-time duties per DSTU GOST 2582:2017 and DSTU EN 60349-2:2022 — thermal-state verification.
Dielectric strength of winding insulation
Dielectric strength testing of inter-turn insulation and winding-to-frame insulation per DSTU GOST 2582:2017 (clauses 8.17, 8.2) — insulation-system reliability control.
Commutation check and commutator runout
Commutation check of DC machines and measurement of commutator and slip-ring runout per DSTU GOST 2582:2017 (clauses 8.12, 8.6.8).
Vibration, vibration and shock strength
Vibration level, vibration strength and single/multiple shock resistance per DSTU EN 60034-14:2016, GOST 30630.1.1-99 and DSTU EN 60068-2-27:2022.
Climatic tests: humidity, cold and heat resistance
Humidity, cold and heat resistance tests per DSTU 8280:2015 (methods 201, 203, 207) and DSTU IEC 60068-2-1:2013 — operability confirmation in harsh conditions.
Seismic resistance and salt-mist exposure
Seismic resistance per DSTU 6098:2009 and SOU NAEK 100:2022 and salt-mist exposure per DSTU IEC 60068-2-52 — for transport and critical equipment.