from the Electrical Engineering department...Core saturation of Electrical machines
Why does a core (say for ex of a transformer/or an alternator) saturate?
from the power generation department...GTG starting clutches
We have in our gas turbine frame 7E a problem of failure to start due to starting clutch disengage.
from the Forum department...Load Hunting on GE frame 7
Fuel and Load Hunting after Full speed and massive with generator breaker closed
> And i Forgot to say that the unit is working on Ovation system by Emerson Is the Ovation...
Ahmad, One other very common cause of instability and hunting is liquid fuel supply pressure....
Ahmad, I don't think you're going to find much experience here with Ovation control systems on...
And i Forgot to say that the unit is working on Ovation system by Emerson...
from the Operations department...Siemens V94.2 Gas Turbine Exhaust Temperature Measurement
Looking for information on Siemens V94.2 Gas Turbine Exhaust Temperature Measurement
from the Operations department...What to do when the outgoing line breaker trips?
what are you to do when outgoing line breaker trips
By sb on 22 April, 2013 - 3:57 am -
Dear Stephen Mention the details how many outgoing lines do you have and what is busbar scheme...
from the Forum department...HP bypass flow in power plant
Is HP bypass flow necessary to control power plant?
By sb on 22 April, 2013 - 3:49 am -
Bypass system is generally used in Combined Cycle Power Plants. Purpose of keeping HP bypass OPEN...
By Pavalavannan.B on 13 April, 2013 - 5:24 am -
Hi, It is not necessary to measure flow of HP B/P because Pressure is the one to be controlled....
from the Mechanical department...Starting means turbine shaft fail to break turbine away
When we try to put the machine to turning we get the following trip "Starting means turbine shaft fail to break turbine away"
By sb on 22 April, 2013 - 3:29 am -
Very interesting topic.. I have got many points from experience you shared. We do have suffered...
By tony salman on 20 April, 2013 - 8:30 am -
Dear All i read all experience share that is good notes. but i think the problem get from lube...
By Chandra on 13 April, 2013 - 12:27 pm -
We are using 6 Units Frame 9E gas turbines and we often have the problem with failure to break...
from the Forum department...Iron in IP Boiler
Iron in IP Boiler
By d- on 20 April, 2013 - 10:13 am -
the non-volatile components will be concentrated, blowing down the boiler is about the only way...
Dkguerry.... can you provide a unit-of-measure, i.e., grains per gallon, or mg per liter? ...
from the Forum department...GE servovalve moog G771K616
G771 Moog servovalve and a G123-825 buffer amplifier for a gas turbine.
from the Is the appetite for Relay Testing department...Interposing Relay Testing
Would you say that testing of interposing relays is important outside of the nuclear industry?
By Bob Peterson on 19 April, 2013 - 2:49 pm -
another thought. it may well be cheaper to just replace these kind of relays as opposed to trying...
from the Forum department...Diffuser leakage
Searching, Yes. Heat causes expansion, and expansion of a bearing housing can cause alignment...
from the Forum department...Selection of Gas turbine for a combined cycle power plant
Procedure for selection of gas turbine and steam turbine for a combined cycle power plant.
Suman, The only question we can possibly answer based on the information provided is the one...
from the Operations department...GT Base Load to Full Speed No load
How to bring GT from Base load to Full speed no load manually??
sriram sandeep, It would be done exactly as you describe. Unload the machine (manually or...
from the Operations department...Why we kept synchronisation breaker separately for Gas turbines
Why we need to kept GCB as a synchronisation breaker for gas turbine instead of using the line breaker as like steam turbine..
sriram sandeep, Some sites synchronize the gas turbine generator across a breaker that is on the...
from the instrumentation department...generator hydrogen cooling system
hydrogen cooling system for GE frame6 generator manual
By naransinh on 19 April, 2013 - 1:17 am -
the information helped me a lot to understand this system. thank you so much. but i still have one...
from the Training department...Generation Cyber Security Training May 17th
Cyber Security training for Power Generation Professionals, May 17th outside of Chicago.
from the GT department...GBC FAILURE
GasBooster compressors could not be started after a sudden dip in grid. Thrust pads of High speed shaft in gear box completely damaged. Compressor bearings found no damage. Is there any chances of Antisurge valve malfunctioning?
from the Forum department...Mk6b control status
Mk6b control status. status is showing minor difference.
Eskay, Funny you should post this question today, as I have spent several hours by telephone and...
from the MK-V department...MK-V Date-Time in Historian
I would like to add the MK-5 Date and Time to a historian.
By curiousone on 17 April, 2013 - 7:44 pm -
Actually it is much easier to ensure that the HMI, MKV, and the historian are synchronized to a...
from the MV AC Drives department...How big is the MV AC Drives market in India?
please share your views on the MV Drives business in India,
I am doing a market research report for India...
I am doing a market research report for India...
Hi NKS, India is always a Growth Region market having huge potential for MV AC Drives. ...
from the Salse Department department...GPRS real time data transmission
We would like share the experience for GPRS application.
By DR Sharma on 16 April, 2013 - 6:31 am -
I am interested to transmit my real time generation data to state load dispatch center through...
from the Instrumentation and control department...Back Pressure Control Mode In Toshiba steam turbine D-EHC control system
What is the Back pressure mode in Toshiba steam turbine ?and what is the running condition for this mode?
from the Forum department...When 2 out of 3 poles of the circuit breaker of a Generator are closed
What will happen when 2 out of 3 poles of a 220 kv circuit breaker of a 330MVA Generator (of a steam power plant) is closed and one open when the generator (via GT) is connected (or synchronized)with 220kv bus?
Santanu... The disturbance question I replied to was just the opposite of what you described, and I...
Santanu... if closure of the faulted-breaker at the instant both the generator-side PTs and the...
Santanu Das, The answer to this is complicated to explain in words. The simple, but not...
from the I&C Root Cause Analysis department...Mark VIe PDIO Failures
Mark VIe PDIO cards failing very frequently. We are looking for a company to conduct an RCA on the failures and provide corrective actions to minimize/eliminate failures.
from the Forum department...YSF6 Switchgear VT
We are derating a 22kV YSF6 panel to 11kV. We need 2 x 11kV/110V SQRT3, 3p, class 0.5 50VA busbar mounted VTs.
Anyone know we can get some
Anyone know we can get some
from the Forum department...Efficiency of Gas Turbine
how to calculate the power in MW that drives the compressor...
By Brian Freeman on 12 April, 2013 - 9:10 pm -
from what I understand... MW = (J/s)*3600(s/hr)=3600(J/hr)=>MWhr=3600J Lets say MWhr/kg...
from the Forum department...load rate (stag ms9001fa)
Behavior of a power plant when its load rate (stag ms9001fa) drops.
GE sets the loading rates so as to maximize the operating life of the equipment. Or, perhaps, so as...
from the mm department...Lube oil filter on GE Frame 9FA
The lube oil filter on GE Frame 9FA machines only works when we are opening the 1/2" Filter drain valve.
Ashutosh, You also have a P&ID of the lube oil system, which you can use to understand how...
One of the lessons of history is that nothing is often a good thing to
do and always a clever thing to say.
-- Will Durant