The ZPD/ZP Series of 400 Hertz brushless alternators offer a steady state and superior transient output. It conforms to the latest MIL-STD standards. It benefits from having a 3kw-120kw brushless and externally regulated 12 leads design, a wave form deviation with a 1%regulation and line droop compensation on standard models, a voltage setting time ≤0.5s and voltage fluctuation rate ≤0.5%. The no-load voltage setting has a range ≥95% to 105% of rated voltage.