Event
- Event ID
- 273
- Quality
- Description
- This incident occurred in the turbine-generator system. A severe hydrogen ingress into the stator coolant system resulted in a fire in the stator coolant head tank (ignition source unknown).
No injuries to personnel. Minimal damage to plant. - Event Initiating system
- Classification of the physical effects
- Hydrogen Release and Ignition
- Nature of the consequences
- Fire (No additional details provided)
- Macro-region
- Europe
- Country
- United Kingdom
- Date
- How was it involved?
- Internal Explosion (H2-Air Mixture)
- Initiating cause
- Unknown
- Root causes
- Unknown (No additional details provided)
Facility
- Application
- Power Plant
- Sub-application
- unspecified
- Hydrogen supply chain stage
- All components affected
- stator coolant header,
H2 coolant system - Location type
- Unknown
- Operational condition
Emergency & Consequences
- Number of injured persons
- 0
- Number of fatalities
- 0
- Environmental damage
- 0
- Post-event summary
- No injuries to personnel. Minimal damage to plant.
- Emergency action
- The rescue services evacuated the proximity of the site but did not take any other immediate action. They monitored the hydrogen detectors at the fire service panel until it indicated that the concentration was below flammable levels.
Event Nature
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Presumed ignition source
- Not reported
- Deflagration
- N
- High pressure explosion
- N
- High voltage explosion
- N
References
- Reference & weblink
Event description provided by HSE, original source confidential
JRC assessment
- Sources categories
- HSE
