Page 33 - Defence Suppliers Directory #50
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3-Phase to Single-Phase AC Conversion
with Balanced 3-Phase Load Currents
Single-phase loads represent a complex problem for the 3-phase utilities found in ships. In fact, MIL-STD-1399-300B requires all phase currents to be balanced to within ± 3%. It is impossible to achieve this degree of phase-to-phase current balance in a 3-phase system with significant single-phase loads. To deal with this problem, SynQor has developed an electronic solution: The Military-Grade AC Changer (MAC). The MAC isolates 3-phase sources from single-phase loads through a DC mid bus. The MAC appears to 3-phase sources as a well-behaved, clean, unity power factor, MIL-STD-1399-300B compliant, balanced load. The MAC also provides voltage conversion from 440 VAC to single-phase 115/230 VAC commonly required by single- phase electronic loads, eliminating the need for heavy, bulky transformers. In addition, the MAC provides galvanic, noise and transient isolation, as well as many other benefits.
®
MAC- 4000
440 VAC 3-Phase Source
Isolated
3 Φ to DC DC DC to 1Φ Mid-Bus
115/230 VAC Single-Phase Output
MAC-4000
Military-Grade 3-Phase AC Changer
3-Phase 440 VAC to Single-Phase 115/230 VAC Conversion
Input current balance < ± 3%
47-65 Hz input frequency range
4000 W (5000 VA) output power at 50/60/400 Hz
Galvanic, noise and transient isolation between input and output Floating or Grounded Output
Full power operation ambient temperature: -40°C to +55°C
Up to 32 units can be combined for higher power, higher voltage, 3-Phase AC output
or N+M redundancy
1U high rack mount unit (17.00”W x 22.42”D x 1.73”H) Low weight: 33 lbs.
Specification Compliance
MIL-STD-1399-300B - Interface Shipboard
MIL-STD-461 - Electromagnetic Interference
MIL-STD-810 - Environmental Engineering
Made in the USA
1-978-849-0600 www.SynQor.com/ADM
