MFT – Re-heater protection

Re-heater protection

Source : All governor valves closed, HP bypass valve < 2% open with

a. at least one feeder running from remote or

b. More than 8 out of 12 oil guns in operation

Implication: Damage to tubes that can result from firing in excess of safe limit which will cause overheating of re-heater tubes due to absence of a steam flow through it.

Action: MFT

MFT conditions