I am currently on an MI Outage for a FR6b unit where there are 6 of the same unit type. A long standing issue has been high Wheelspace temperatures in the Summer when on the rare occasion a unit is required to run at full load. The issue is not insertion depth nor alarm constant setting problem.
My question is basically a clarification. The Compressor discharge casing has 5 bore plugs on both the top and lower halves of the casing and I wanted to know if anyone had any information or has heard of a percentage of these plugs being removed for additional cooling. I have a fleeting memory that I have been to a site were this was the case but I can find no reference to a GE NIC/TIL that may discuss this. I have a small document that possibly alludes to this plug removal and it refers to a "BOM group". Again it would really help if someone knew this GE term "BOM Group". This is not an urgent request but as we have this one unit opened for outage it maybe a chance to suggest this change if it is an actual real modification that I can find some information on.
My question is basically a clarification. The Compressor discharge casing has 5 bore plugs on both the top and lower halves of the casing and I wanted to know if anyone had any information or has heard of a percentage of these plugs being removed for additional cooling. I have a fleeting memory that I have been to a site were this was the case but I can find no reference to a GE NIC/TIL that may discuss this. I have a small document that possibly alludes to this plug removal and it refers to a "BOM group". Again it would really help if someone knew this GE term "BOM Group". This is not an urgent request but as we have this one unit opened for outage it maybe a chance to suggest this change if it is an actual real modification that I can find some information on.