Working Principle FCMA Frequency controlled Automatic Slip Regulator are based on frequency dependent resistance design which provide a constant low starting current with automatically reducing resistance in congruence with motor speed to provide constant torque characteristics...
Tinker & Rasor Model CPV-4 Cathodic Protection Voltmeter is a revolutionary instrument for measuring DC structure-to-earth potentials of various buried or submerged metallic objects. Powered by an ordinary 9-volt battery, the Model CPV-4 gives an immediate reading in large ½...