Floor-standing medium-voltage drive at 7.5 MW
The Schneider Electric ATV1200A89506666 is a medium-voltage AC drive from the Altivar 1200 family, rated for 7482 kW motor power with an apparent power of 8950 kVA. This is not a panel-mount VFD — it ships as a complete floor-standing enclosure measuring 9770 mm wide by 1700 mm deep by 3040 mm high, with separate air flows for the power section and control compartment. The 36-pulse diode rectifier input stage draws 850 A line current from a 2970...3630 V supply, delivering output voltage up to the supply level. This multi-pulse topology reduces line-side harmonics below IEEE 519 thresholds without external filters — the integrated EMC filter is standard.
Overload profile and short-circuit coordination
The drive handles 1.2× rated current for 60 seconds under standard overload, and 1.5× for 3 seconds. For high-overload applications, it sustains 1.5× for 60 seconds and 1.85× for 3 seconds — this matters when sizing for pump breakaway torque or crusher start cycles. Prospective line short-circuit current withstand is 31.5 kA for 150 ms, and dielectric strength between earth and power terminals is 20 kV AC. Ground fault protection is built into the drive, not dependent on an external relay. Operating altitude up to 1000 m is full-rated; above that, derate 0.6 % per 100 m up to 2000 m. The forced-convection cooling system moves 100000 m³/h of air at standard efficiency, with an 80 dB noise level — plan for acoustic enclosures or hearing protection in the drive room.
What's inside the enclosure
The ATV1200A89506666 ships as a complete assembly: 2 plinth sections, a phase-shifting transformer, medium-voltage arrestors, cooling fans, a human-machine interface, and 18 power cells. The control supply is 220 V AC at 3 kVA external; the cooling fan supply is 380 V AC internal, with optional external supplies for both. Electrical connection is via M10 screw-type bars accepting 6 × 40 mm² cable per phase, entry from top or bottom. The enclosure is grey RAL 7032, pollution degree 2 per EN/IEC 61800-5-1, and the operating position is vertical ±10 degrees.
CE marked and compliant with EN/IEC 60204-11, EN/IEC 60529, EN/IEC 61800-3, EN/IEC 61800-4, and EN/IEC 61800-5-1. Electrical isolation between power and control circuits is standard. Lifecycle status is current production — the drive is still an active catalog item from Schneider Electric.