AC Milliammeter, Model J0414, is suitable for the laboratories of middle schools and polytechnic schools to measure current intensity in the AC circuit.
Cyclophos phamide by the current-limiting resistor R6 and voltage regulator tube VZ components, the UB voltage for the unijunction transistor VU DC power supply.
The result shows that CJD alternating current electrodynamometer has simple structure and the energy feedback efficiency can reach 74%, with outstanding energy-saving effect, good control stability.