18 PULSE 350 KVA TRANSFORMER

An 18-pulse transformer is a custom three-phase transformer designed for large power systems where harmonic distortion and power quality are critical concerns. By using advanced phase-shift winding configurations, 18-pulse units greatly reduce the harmonic current and voltage distortion that are typically generated by non-linear loads such as variable frequency drives (VFDs) and large electronic power converters. These transformers are ideal for industrial applications with high-horsepower motors and sensitive equipment, helping facilities meet power quality standards (like IEEE-519) and ensuring more reliable and efficient operation.

Specifications:

• 18 Pulse Transformer, 350 KVA, 3 PH, 60 Hz, P/N 10013L
• Primary (A, B, C): 480 VAC L-L, 421 Amps, Delta
• Secondary (a1, b1, c1): 480 VAC L-L, 140.3 Amps, Delta (+20 degrees)
• Secondary (a2, b2, c2): 480 VAC L-L, 140.3 Amps, Delta (0 degrees)
• Secondary (a3, b3, c3): 480 VAC L-L, 140.3 Amps, Delta (-20 degrees)
• Aluminum windings
• Open Core & Coil: 42” x 24” x 48”
• Weight: 950 kg

An outline drawing of the transformer is shown below:

The schematic diagram is shown below:

To discuss your specific application, please call our number at (714) 624-4740, or send us an email at quote@lcmagnetics.com.