Last night the power supply was ramping up at a very slow rate. This 
morning it was energized,but with no current even though the limit was set 
to 500 amps. Klaus R. found the pot. that set the current limit was bad. 
Repaired it. First try at ramping caused a voltage imbalance and a quench 
I. After a quick recovery, the second try was successfull. Solenoid ramping 
to 500 amps at a good rate.