- Ge Fanuc Versamax Plc Software how to#
- Ge Fanuc Versamax Plc Software generator#
- Ge Fanuc Versamax Plc Software Offline#
The thing is that client at site want to modify capability curve of the LCI and so on by modify this it can be bad for the equipments ! I got the company CEO & others employees contacts in my professionnal network but I don tthink I have that website already checked and it is a good database indeed ! Whatever it is possible or not Client need approbation from GE first to do anything.Ĭlick to expand.Thanks Curious One for your support !
but I am confident to get them cleared with support of experts from this great forum!
Thank you for sharing your expertise / feedback /know how on such operating event/option. what about TORQUE operation (ON/OFF) also ?
Ge Fanuc Versamax Plc Software generator#
What you think about that case? I mean is that possible to reconfigure the Generator as Motor during shutdown ( and send a 140rpm setpoint to LCI ). Reconfiguring those breakers when shaft is "rolling down" and applying voltage on generator stator & excitation( current ) on field/rotor can be bad/dangerous for the safety of the unit. as it will need to reconfigure the other 89ND/89SS/52SS/40AC breakers and signals exchanging form the whole controls systems ( setpoints /signals feedback) FOR SAFE& SMOOTH OPERATION DURING THAT PHASE. ( during Normal shutdown )?įor me That is not good for the safety and integrity of the equipments.
Ge Fanuc Versamax Plc Software how to#
How to get that Generator operating as Motor to keep the unit at 140rpm.
Ge Fanuc Versamax Plc Software Offline#
Indeed that will ask also to check the feasibility of the Generator ( operation as Motor WITH LCI) to get the 140rpm set point on shutdown.Īs the Generator is offline ( 52G opened) & field breaker (40AC will be opened) during shutdown phase. The thing is that ( if GE agreed for the controls/logic modifications) it will necessary to change/modify the shutdown curve of this single shaft unit (LCI /EX2000/MARKV signals exchanges /logic modifications). his response is that they need to keep the HRSG pressurized during night shift/shutdown/ its like kind of cooldown of the unit.and be able to restart from 140rpm. I mean to check IF That option is envisageable, as per OEM recommandations ( Thermal stress, Mechanical Parts wear /fatigue & thermodynamic issues.) I told to client to check with GE first for getting their approbation. They are facing issue to get the second option " configuration fixed " on LCI /MARKV/EX2000 In the second option when we try to start up, we have noticed that we could send the firing speed setpoint to the LCI (15%) but we could see the 41AC dropping and then the LCI setpoint is dropping to 0 : Preventing the start up and going back to 4rpm.During shutdown we have two options, either we go back to 4 RPM on Turning gear (Normal Situation), Or we wait until 4% Speed then we reconnect the LCI to set up the 4.6% Speed (Slow Roll Option) (Working properly 52SS / 89SS /41AC Closed and 89ND Open) 4.6 % speed reference on the LCI.Until disconnecting the LCI at 85% speed ….FSNL then synchronising …. During the normal start up we are going from 4rpm on the turning gear motor to purge speed (25% Setpoint on the LCI) then ignition speed (15% Speed) ….A new option has been introduced to keep the unit on 140 rpm during the shutdown and to start the next day from that Speed.EX2000 on CE Control System Toolbox, the LCI on a Fanuc PLC. The unit is on markV for Steam and gas turbines.The power plant is an old one (built late in the 90th) stopped in 2012 and now back to operation, It is a combined cycle / Single shaft / 9FA, with LCI.I will explain here more precisely the case I am facing with. First Thank you so much for these gathering datas and clarifications.
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