Method and apparatus for liquid cooled generator stator test and preparation therefor

A portable, palletized system for purging fluid coolant lines of transformers and/or dynamoelectric stators comprising;

• (A) a pallet;
• said pallet bearing thereon at least
• (B) means for subjecting the fluid lines to a series of pressurization and blowdown operations, including,
• (i) a vacuum subsystem comprising a vacuum drawing means including a vacuum inlet valving means;
• (ii) an air compression subsystem comprising air compressor means, air conditioning means and compression inlet conduit means including compression valving means;
• (iii) a semi-automatic control means comprising essentially relay logic circuits for actuating said vacuum and compression valving means while responding to pre-set relays which are responsive to signals generated by a plurality of pressure transducers located proximate said vacuum and compression valving means, said logic circuits used to control the vacuum and the air compression subsystem and to conduct activation signals to both of said valving means, said logic circuits being further responsive to manual setting of pressure or vacuum thresholds so as to allow variations of pressure/vacuum parameters for pressure/vacuum operations performed by said system.