Primary injection test set also could called primary current injector. it has three phase and single phase, and also we should consider whether it is AC or DC output. this model is widely used in the circuit breaker, busbar, ct manufacturers. most manufacturer use such primary injection test set for temperature rising test.
t is used for intermittent work, working time should be less than 2.5 mins, and the working cycle should be greater than 10 mins Application