Answer / pravin

Boiler Reheater protection;
To avoid starvation in reheater circuit some minimum steam flow needs to be maintained during startup conditions which will be ensured through HP/LP bypass valves failing which protection acts.this protection acts only when fuel flow is greater than certain limit specified by Boiler mfgrer and hp/lp bypass valves are less than specific % and unit Load criteria/gv,icv full close.

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