Acoustic Camera Video Files
Example of PDIV and PDEV test of coil with semicon damage 3.0 kV AC testing of 6 kV stator, non-connection side 4.8 kV ...
Example of PDIV and PDEV test of coil with semicon damage 3.0 kV AC testing of 6 kV stator, non-connection side 4.8 kV ...
STRATEGY FACING AN EARTH FAULT By pass the faulty coil: And Keep operating with by passed coil Sometimes several coils are by passed on same machine ...
...activity, the nature of the discharge (including general location and possible severity) may be estimated. General location inside groundwall insulation On external surface of bar ...
...forces exist that often cause component failure primarily due to: Eddy Current (inductive) heating from fringing magnetic fields (flux) Non uniform cooling air flow ...
Lessons Learned Hire an independent consultant to review design of interpole connections Perform structural and dynamic stress analysis...
Once upon a time… Literature survey about outage intervals: most information in OEMs’ documents, very few generic papers General Electric Review, 09/1923 suggested periodic inspecti
...same phases in a slot : – no outward force In case of different phases in a slot: – pulsating force inward and outward – ...
...the unit from starting. Subsequent electrical testing determined genuine earth fault on the rotor. Decision to pull rotor to determine the cause of the earth ...
STORY ARC Synopsis: We attempted a repair and ended up rewinding. SET UP Two sister unit plant Approx. 59 MVA each Multi-turn coils Original early 1960s constructi
Introduction In the past technicians or engineers used to keep cabinets of technical documents Hardcopies occupied office space and searching was based on human ...