Fire at a Alternator-Generator Unit
Unit tripped on-load due to serious fire between alternator and number 12 bearing. Fire extinguished by fire brigade. No injuries. Serious site damage was sustained to in CT chamber and alternator end of generator. Failure of generator slip ring and the hydrogen seal caused by circulating current. Combination of hydrogen (ignited by molten metal) and oil fires.
Event Date
October 13, 1979
Record Quality Indicator
Region / Country
Event Initiating System
Classification of the Physical Effects
Nature of the Consequences
Causes
Facility Information
Application Type
Application
Specific Application Supply Chain Stage
Components Involved
System generator & alternator.
Storage/Process Medium
Location Type
Location description
Unknown
Operational Condition
Consequences
Number of Injured Persons
1
Number of Fatalities
1
Currency
Lessons Learned
Lessons Learned
Unknown
Event Nature
Emergency Action
Fire extinguished by fire brigade.
Emergency Evaluation
Not known
Detonation
No
Deflagration
No
High Pressure Explosion
No
High Voltage Explosion
No
Source Category
References
References
Event description provided by HSE, original source confidential