4063 kW medium-voltage drive for large asynchronous and synchronous motors
The ATV1200A48603333 is a medium-voltage variable speed drive rated for 4063 kW motor power, designed to control both asynchronous and synchronous motors in heavy industrial applications. It accepts a supply voltage of 2970…3630 V and uses an 18-pulse diode rectifier bridge input, which inherently reduces line harmonics below IEEE 519 thresholds without requiring external harmonic filters.
18-pulse input and overload duty cycles
The 18-pulse topology shifts the 5th and 7th harmonics to higher orders that are easier to filter, meaning the drive meets typical utility harmonic limits at the point of common coupling without add-on filter cabinets. Overload capability is configurable: 1.2 × In for 60 s or 1.5 × In for 3 s under standard overload, and 1.5 × In for 60 s or 1.85 × In for 3 s under high overload — the high-overload profile suits applications with intermittent peak torque demands like crushers or mills. Line current is rated at 850 A with an apparent power of 4860 kVA, and the prospective short-circuit current withstand is 31.5 kA for 150 ms.
Modular cell architecture and enclosure
The drive is assembled in a floor-standing enclosure with separate air flows for the power cells and control section — the forced-convection cooling moves 60000 m³/h through the cabinet. It comprises 2 plinths, a phase-shifting transformer, 9 power cells, medium-voltage arrestors, cooling fans, and an HMI — the modular cell design means a single failed cell can be bypassed to keep the motor running at reduced capacity until scheduled maintenance. The enclosure dimensions are 1700 mm deep by 5870 mm wide by 2740 mm high — site access planning must account for the 5.87 m width through doorways and aisles.
Current production — lifecycle and compliance
It carries CE marking and complies with EN/IEC 60204-11, EN/IEC 60529, EN/IEC 61800-3, EN/IEC 61800-4, and EN/IEC 61800-5-1 — the 61800-3 compliance covers EMC emissions for the second environment (industrial), so no additional line filters are typically needed. Pollution degree 2 per EN/IEC 61800-5-1 and overvoltage category II apply, with dielectric strength tested at 10 kV AC between earth and power terminals.