We have a pair of 1,620kw (2,172 hp) Caterpillar 3512 emergency power generators at the telecom central office where I work. This is the most recent coolant analysis result for them. The coolant is Caterpillar ELC that was installed 6 years ago. Each generator has more than 800 gallons of coolant. The analysis was done by Butler Machinery with Level II kits purchased through Dyson Analysis.
The first column is gen 1, the second gen 2.
One generator suffered a boil-over accident soon after installation, and was topped off with water. That generator is in trouble now. Can you guess which one?
The first column is gen 1, the second gen 2.
Many thanks to Terry for his line-by-line analysis of the data.code:
GEN #1 GEN #2
Total hrs: 117 hrs 118 hrs
Appearance: red/orange/clear red/orange/clear
Odor : normal normal
Foam : normal normal
Oil/Fuel : none none
Maintenance & additives:
Glycol 50% 32%
Freeze -37C -17C
Boil 107C 103C
PH 8.7 8.7
Conductivity 3940 4040
NO2 490 170
NO3 0 0
SiO3 3 3
moO4 866 423
PO4 3 0
Bo3 1 11
Seb 1380 870
Toly 1560 870
K 5636 3437
Corrosion & Hardness:
Fe 0 0
Cu 0 0
Al 0 0
Pb 0 0
Sn 0 0
Zn 0 0
TH 3 42
Ca 3 11
Mg 0 31
Metal Pitting :
SO4 0 0
Glycat 0 0
CO3 0 0
CI 0 0
NH3 no no
Solids : none none
One generator suffered a boil-over accident soon after installation, and was topped off with water. That generator is in trouble now. Can you guess which one?