why a fire suppression system was not installed for transformer protection?
A fire suppression system may not be put on a transformer for a variety of reasons, including the kind of transformer (dry-type vs. oil-filled), the availability of suitable fire barriers & cost-benefit considerations.
According to the NFPA - National Fire Protection Association, the lack of a fuel tank (oil) in dry-type transformers frequently eliminates the need for a specific fire suppression system.
However, even for oil-filled transformers, fire safety can be provided by other ways, such as
- Fire barriers or
- Differential relay protection systems.
Dry-Type Transformers
Dry-type transformers do not contain oil, which is a common fuel source for transformer fires.
As a result, they may not need a fire suppression system.
Oil-Filled Transformers
Oil-filled transformers pose a higher fire risk.
However, fire barriers and differential relay protection schemes can isolate the burning transformer from nearby equipment and detect faults before a fire spreads.
Cost-Benefit Analysis
The costs of building & maintaining a fire suppression system must be balanced against the potential advantages, taking into account the transformer’s specific dangers and location.
Ensure regulatory compliance for structure, installation, & inspection, including fire protection measures.
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