Hello -
I have several stationary EMD 645's diesel engine generators on which I would like to install fuel flow meters on both the inlet and outlet fuel lines.
I expect the max flow rate to be less than 5 gpm. The meter needs to have a pulse output, although 4-20 ma may be acceptable, to...
Thanks to all for the good advice.
In the case of the 64G, all I've read seems to point towards the 3rd harmonic option being a valuable tool to protect your generator, so I will be requesting the A/E either incorporate the 64G as called out in the scope of work, or provide sound engineering...
burntx: Our meeting with the protection engineer was prior to the coordination study being performed. No data yet.
davidbeach: Our gens run at 12.47KV, although depending on routing needs, we can step up to 115KV. Also, according to the SEL-300G manual, the 64G is 'recommended' on high...
All CT's and connections needed to provide a 64G are available. One of the A/E's reasons for not using 64G was the size of the generator: he said they were too small to use 64G.
As long as we are on this topic, he also said that 78 (out of step) was also inappropriate for this system. Thoughts...
I am upgrading protection on two 2.5MW diesel engine gen sets with groundng reactors. My spec required Schweitzer SEL-300G relays, and also called out ANSI 64G - 100% Stator Ground protection.
We recently met with the protection designer, and he said that a 64G was not appropriate for these...
