Faulty Hydrogen Seal Causes Electrical Short and Fire in Generator
Leak from faulty hydrogen seal ignited by short circuit between inboard slip ring and outboard slip ring radial lead connection. Hydrogen flame caused damage to brush gear assembly and inboard slip ring.
Event Date
January 11, 1965
Record Quality Indicator
Region / Country
Event Initiating System
Classification of the Physical Effects
Nature of the Consequences
Causes
Cause Comments
This event occurred because hydrogen escaped via a faulty seal and subsequently ignited.
Facility Information
Application Type
Application
Specific Application Supply Chain Stage
Components Involved
Slip ring, hydrogen seal
Storage/Process Medium
Location Type
Location description
Unknown
Operational Condition
Lessons Learned
Lessons Learned
Unknown
Event Nature
Emergency Action
Not stated
Emergency Evaluation
Not stated
Ignition Source
Detonation
No
Deflagration
No
High Pressure Explosion
No
High Voltage Explosion
No
Source Category
References
References
Event description provided by HSE, original source confidential