Conventional substation commissioning doesn't need a heavy trolley-mounted source. The CRA600LSi delivers 3-phase current (3×15A) and 4-channel voltage (4×130V) outputs in a 2.8kg, 261×181×80mm handheld unit, powered by a 13, 600mAh built-in battery rated for a full day of field testing without an AC supply. Waveform quality stays tight, with THD+N typically ≤0.1% for current and ≤0.03% for voltage, and harmonic injection up to the 50th order for relay filtering verification. For T& C crews moving between multiple distribution-class sites in a single shift, the combination of low weight and battery endurance matters as much as raw accuracy specs. Exclusively available in India through Myriad Industrial Solutions LLP.