Looking for a "TEST BLOCK".
Tried to GOOGLE GE Global Model NO. 1721-484 and can't seem to locate. Block has a combination of 3 single pole and 3 double pole switches. Device is used for isolation of Main Generator current (CT's)inputs to NEXIS System for trip logic. The Test Block has been used...
I am currently involved in performing corrective/preventive maintenance on several (68) Size 5 GE Motor Starters for a Cooling Tower Fan project. The MCC's are in enclosed outdoor Motor Control Centers, but the environment and the lack of preventive maintenance has provided quit a challenge. The...
Recently I have been involve in replacing numerious Scram Solenoids (type AVCO B7122-145) at a Nuclear Power plant. The circuits have diodes in parallel with the solenoid and the supply is 120VAC. After researching the associated drawings I found a note describing their function. "Arc...
