thank you for your quick answer. I asked about "L30FT_L2" signal. we have L30FT_L as I send in the attachment file.

would you please tell me how do you calculate your EOH in your power plant? I mean you calculate it by hand or GE have its own extension logic for this reason that automatically can calculate the EOH?

Do you have a signal designation/name for the EOH ?

So I can check on the app codes that i got

 

Do you have a signal designation/name for the EOH ?

So I can check on the app codes that i got

No, there isn't any signal/logic for the EOH. Just as I said at first, there are some general descriptions to calculate EOH (time base, start base) which are not clear. therefore, I want to write/implement one in which the control system calculates EOH automatically.

 

Oh ok i see

The only thing that i got on EOH (time based, start based ) is a GE energy Manual..

 

As i said before and as you described with screenshot on original post, there are kind of calculation and estimated time intervals for repair , replace some parts like combustion parts ..with accordance to HGPI OR CI Operating time/starts calculation..

 

I found a EOH calculation but it is for Alstom Legacy "Annular/silo" fleet ..

 

I found a EOH calculation but it is for Alstom Legacy "Annular/silo" fleet ..

It may help me to find out the concept.
it would be great if you could send it to me.

thank you in advance.

my Email:
[email protected]

 

Last Update:
I found the answers to my questions that I've started this thread with them. Here they are:

NA = Annual number of part load start/stop cycles (<60% load)
1)Is this mean that if the operator starts the GT and reaches 60% load this counter will increase by 1?
-Answer: it means in one cycle of operation it reached less than 60% of the nominal load. if in the same cycle it goes more this counter doesn't count anything.

2) If the answer to the first question is yes, What happens to this counter if the operator starts the GT and reaches 60% load and after 10 min selects base load? I mean this is not a start for a 60% load so what happens to this counter?
-Answer: as I mention in the first answer, this counter doesn't count anything.

3) what does Start/Stop means in this definition? is it mean that if the operator stops the GT from 60% load this counter increases by 1?
-Answer: It means one cycle of operation. For making this more clear, I should say one cycle (start/stop) means the duration that a turbine starts, operate, and shutdown (any type of shutdown).

NB = Annual number of base load start/stop cycles
1) is this means if the operator starts the GT and reaches to base load this counter increases by 1?
-Answer: No. it means during a cycle of operation if the max load is the Base load this counter will increase by one. it doesn't matter if the unit remains even 10 min in base load and 30 days in partial load in one cycle of operation.

2) If the answer to the first question is yes, what happens to this counter if the operator in the same start operating the GT for more than 2 days (for instance) in part load and after that selects base load? is this base load start or part load start? what happened to this counter?
-Answer: it means base load start/stop

3) what does Start/Stop means in this definition? is it mean that if the operator stops the GT from base load this counter increases by 1?
-Answer: It means one cycle of operation. For making this more clear, I should say one cycle (start/stop) means the duration that a turbine starts, operate, and shutdown (any type of shutdown).


NP = Annual number of peak load start/stop cycles
1) is this means if the operator starts the GT and reaches peak load this counter increases by 1?
-Answer: Yes. in general max load in one cycle of operation is considered in this counter.

2) If the answer to the first question is yes, what happens to this counter if the operator in the same start operates the GT for more than 2 days (for instance) in part load and after that selects peak load? is this peak load start or part load start or base load start ( because the unit has to pass to the base load first and after that reach the peak load. base load start/stop counter increases by 1 during reach to peak load?)
-Answer: This counter increases by 1 and other counters don't count anything.

E = Annual number of Emergency start
1) Is "Emergency start" means that start GT to base load in 5 min (I read this from a GE description that I'm not sure about it)?
-Answer: Yes according to the Ge description.

2) is the rate of "Emergency start" means TNKR1_6 = 8%/min?
-Answer: it should be more than this because 8%/min is not enough to reach base load in 5 min.

3) what is the logic of L83JD6 for this? we don't have L83JD6 in our logic. can anyone make an example for this logic ( L83JD6)?
Answer: I still couldn't find anything about this.

 

Last Update:
I found the answers to my questions that I've started this thread with them. Here they are:

NA = Annual number of part load start/stop cycles (<60% load)
1)Is this mean that if the operator starts the GT and reaches 60% load this counter will increase by 1?
-Answer: it means in one cycle of operation it reached less than 60% of the nominal load. if in the same cycle it goes more this counter doesn't count anything.

2) If the answer to the first question is yes, What happens to this counter if the operator starts the GT and reaches 60% load and after 10 min selects base load? I mean this is not a start for a 60% load so what happens to this counter?
-Answer: as I mention in the first answer, this counter doesn't count anything.

3) what does Start/Stop means in this definition? is it mean that if the operator stops the GT from 60% load this counter increases by 1?
-Answer: It means one cycle of operation. For making this more clear, I should say one cycle (start/stop) means the duration that a turbine starts, operate, and shutdown (any type of shutdown).

NB = Annual number of base load start/stop cycles
1) is this means if the operator starts the GT and reaches to base load this counter increases by 1?
-Answer: No. it means during a cycle of operation if the max load is the Base load this counter will increase by one. it doesn't matter if the unit remains even 10 min in base load and 30 days in partial load in one cycle of operation.

2) If the answer to the first question is yes, what happens to this counter if the operator in the same start operating the GT for more than 2 days (for instance) in part load and after that selects base load? is this base load start or part load start? what happened to this counter?
-Answer: it means base load start/stop

3) what does Start/Stop means in this definition? is it mean that if the operator stops the GT from base load this counter increases by 1?
-Answer: It means one cycle of operation. For making this more clear, I should say one cycle (start/stop) means the duration that a turbine starts, operate, and shutdown (any type of shutdown).


NP = Annual number of peak load start/stop cycles
1) is this means if the operator starts the GT and reaches peak load this counter increases by 1?
-Answer: Yes. in general max load in one cycle of operation is considered in this counter.

2) If the answer to the first question is yes, what happens to this counter if the operator in the same start operates the GT for more than 2 days (for instance) in part load and after that selects peak load? is this peak load start or part load start or base load start ( because the unit has to pass to the base load first and after that reach the peak load. base load start/stop counter increases by 1 during reach to peak load?)
-Answer: This counter increases by 1 and other counters don't count anything.

E = Annual number of Emergency start
1) Is "Emergency start" means that start GT to base load in 5 min (I read this from a GE description that I'm not sure about it)?
-Answer: Yes according to the Ge description.

2) is the rate of "Emergency start" means TNKR1_6 = 8%/min?
-Answer: it should be more than this because 8%/min is not enough to reach base load in 5 min.

3) what is the logic of L83JD6 for this? we don't have L83JD6 in our logic. can anyone make an example for this logic ( L83JD6)?
Answer: I still couldn't find anything about this.

Thank you for these clarifications..

For L83JD6 I gave you the answer on one post.. Just re-read the whole thread you will see the answer...

 

See post number 4

You asking following questions:

3) what is logic of L83JD6 for this ? we dont have L83JD6 in our logic. can anyone make a example for this logic ( L83JD6) ?

Note that L83JD6 signal name called "Load Fast Rate"