Working In Montana

Howdy from Montana!

After flying into Billings then driving out to Miles City yesterday, I continued my journey east-bound towards Baker Montana for a grand total of 216 miles one-way. I arrived at this air injection station that has 8 medium voltage compressors installed. The air injection is used for pressurizing an oil deposit pocket so it practically forces the oil out of the ground.

Here is one of soft starter 4 lineups installed in the MCC room.

Here we are, rebuilding SCR stack assemblies.

After removing this SCR and cutting it open, I could see it had burned from the outer edge, which is a strong indication of a voltage failure.

This SCR has a circular burn at the gate/cathode interface. Could be a current failure, could be gating.

This SCR was so damaged that it fused together and can't be pried apart for inspection without destroying it.

This is the reciprocating compressor that the starter we rebuilt is operating.

After the rebuild was done, the motor was started twice then left on. Since everything looked good, I packed my tools and left the site to head back to Billings.