All tests must be performed according to IEC 60034
Routine tests
The routine test program is performed on every generator and
is included in the price of the generator.
– visual inspection
– air gap measurement (during final assembly)
– sleeve bearing clearance check (larger generators
during final assembly)
– insulation resistance measurement before rotating
– winding resistance measurement
– terminal markings and direction of rotation
– checking of temperature detectors and space heaters
– bearing run
– no load-point
– short circuit point
– testing of the automatic voltage regulator
– overspeed test
– vibration measurement
– auxiliary check
– dielectric tests after rotating
– insulation resistance measurement after rotating
Type tests and additional tests
Type tests are performed in addition to the routine tests.
They are normally performed on one machine in a series of
generators not previously manufactured, or at the request of
the customer. Some tests may incur an additional cost.
– no-load curve
– short circuit curve
– heat run test (temperature rise test)
– losses and efficiency
– transient and subtransient reactance measurement
– voltage wave form analysis