TURBINE EMERGENCY STOPPED CONDITIONS 

Today we discussed about the emergency stoppage of steam turbine . at which conditions or emergency occurred during steam turbine operation we should immediately stop the turbine. after many research I discussed some point or we can say turbine emergency I found or faced and listening about them I discussed with you at below remembered these point may be changed according to turbine design and capacity :-

When the following occasions happened, the emergency stop shall be made:

(1) When T/G set emerges heavy vibration, or when any shaft vibration exceed 0.05mm:

(2) The turbine rotation speed increased to 3330r/min, and the emergency governor does not act accordingly, after tripping the speed does not decreased;

(3) When water impact emerges;

(4) When the turbine inside emerges metal impact sound, and continued to be expand or shaft seal get sparkles;

(5) When any shaft temperature exceed 105℃;

(6) When oil system gets on fire and can not stamp out quickly;

(7) The oil tank hydro-static level decreased to lowest point;

(8) The main oil pump failure or other fault, the lube-oil pressure decreased to 0.08Mpa and the meter can not control over it which continue to decrease;

(9) Shaft position move exceed rated data, however the protective device does not work;

(10) When rear cylinder membrane security valve works;

(11) Main steam pipe explode;

(12) When the following incident happens, the generator has to tripping from the system:

1. Generator inside get smoke and fire;
2. generator vibrate heavily;
3. equipment accidentally failure and threatened the workers’ life.

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joginder chauhan

Hi all power engineers myself Joginder Chauhan. I am the founder of the website www.askpowerplant.com. I am also a power plant engineer and have more than 10-year experience in the field of power sectors during this time period I learned about different power technology like AFBC, CFBC, TRAVELLING GRATE, PULSATING GREAT, PF BOILER, WHRS, and many more things. my motive for this site sharing my power sector knowledge with each and everyone who belongs to this field, in this website I share information related to boiler operation, boiler maintenance, turbine operation & maintenance, boiler & turbine question answer, D.M plant, and all topic related to power plant sector please join this website for latest updation regarding power plant ………..thanks ( JOGINDER CHAUHAN )

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