Medium-voltage drive for synchronous and asynchronous motors
The Schneider Electric ATV1200A17504242 is an Altivar 1200 series medium-voltage AC drive rated for 1463 kW motor power with 1750 kVA apparent power, supplied at 2970...3630 V. It drives both synchronous and asynchronous motors, making it a single-drive solution for a range of medium-voltage rotating loads — pumps, compressors, fans, conveyors — where the motor type may vary across the plant.
24-pulse topology and line-side performance
The input stage uses a 24-pulse diode rectifier bridge, drawing 280 A line current at the supply voltage. This multi-pulse configuration reduces line-side harmonics below IEEE 519 thresholds without an external filter — a key advantage for installations where power quality compliance is a constraint. The drive withstands a prospective line short-circuit current of 31.5 kA for 150 ms, so it coordinates with upstream switchgear rated for that fault level without requiring additional current-limiting reactors. An integrated EMC filter is standard, and the drive meets EN/IEC 61800-3 for conducted and radiated emissions in the intended industrial environment.
Overload profile and duty cycle
Two overload profiles are available: standard overload handles 1.2× rated current for 60 s and 1.5× for 3 s; high overload handles 1.5× for 60 s and 1.85× for 3 s. The high-overload curve suits applications with heavy starting duty or intermittent peak loads — crushers, extruders, or centrifuge drives — where the 60-second window at 1.5× In covers the acceleration period. The speed range is 20...100 %, meaning the drive delivers full torque down to 20 % of base speed without external feedback — adequate for most pump and fan variable-torque profiles, though constant-torque loads below 20 % may require a closed-loop option not listed here.
Physical footprint and enclosure
The drive ships in a floor-standing enclosure with separate air flows for the power section and control compartment — this segregation prevents hot power-cell exhaust from recirculating into the control electronics, a common failure mode in tightly packed MV rooms. Dimensions vary by efficiency variant: standard efficiency is 4060 mm wide × 1500 mm deep × 2740 mm high; high efficiency is 4360 mm wide × 1600 mm deep × 2740 mm high. The depth difference reflects the larger heat sink or additional cell count in the high-efficiency build. Cooling is forced convection, with airflow volumes of 29,900 m³/h (standard efficiency) or 33,200 m³/h (high efficiency). The noise level is 80 dB — hearing protection is required within the enclosure perimeter during operation.
Control supply and I/O complement
The control section requires an external 220 V AC supply at 3 kVA; an optional 220 V AC/DC supply is available. The cooling fan has its own internal 380 V AC supply, with an optional external 380 V AC feed for redundancy or backup power schemes. Standard I/O includes 4 software-configurable analogue inputs (0...20 mA / 4...20 mA, 250 Ω impedance), 2 analogue outputs (same range), 6 discrete inputs (expandable to 10), and electrical isolation between power and control circuits — the 20 kV AC dielectric strength between earth and power terminals confirms the isolation barrier is sized for medium-voltage transients. Power connection uses M10 screw-type bar terminals accepting up to 6 × 40 mm² conductors per phase, with cable entry from the bottom or top of the enclosure.
Environmental limits and derating
Rated for pollution degree 2 per EN/IEC 61800-5-1, overvoltage category II, and operating altitude up to 1000 m without derating. Above 1000 m up to 2000 m, derate current by 0.6 % per 100 m — at 2000 m the effective output current is 94 % of the nameplate rating. Relative humidity range is 0...90 % standard, extendable to 0...95 % with an optional treatment. Operating position is vertical within ±10 degrees — the enclosure must be plumbed to within this tolerance to maintain proper airflow through the power cells. Vibration resistance is 4.9 m/s² over 10...50 Hz, adequate for concrete-floor installation in most industrial buildings; for elevated platforms or near reciprocating machinery, a vibration-isolation base should be considered.
Composition and compliance
The drive assembly includes 2 plinths, a phase-shifting transformer, medium-voltage arrestors, cooling fans, a human-machine interface, and 12 power cells — the power cells are the field-replaceable modules that contain the IGBT inverter stage. CE marked and designed to EN/IEC 60204-11, EN/IEC 60529, EN/IEC 61800-3, EN/IEC 61800-4, and EN/IEC 61800-5-1. The enclosure colour is grey RAL 7032.