Railway Traction Transformer
A specialized transformer for railway electrification converting supply voltage for traction motors.
A railway traction transformer converts utility supply to voltage required by traction substations or on-board equipment. Must handle single-phase loads, harmonics from converters, frequent cycling.
Considerations: unbalanced single-phase loading on three-phase supply, enhanced impedance for fault limiting, vibration resistance, K-rating for power electronics.
Mainline: 5-30 MVA. Urban metro/light rail uses smaller units. Urban rail increasingly uses dry-type for auxiliary power.
QDTB supplies traction transformers leveraging special-purpose expertise. Contact our engineering team for railway requirements.
Related Products
Related Terms
Harmonics
Integer multiples of fundamental frequency from non-linear loads, causing increased transformer losses and overheating.
K-Factor
A transformer rating indicating ability to supply non-linear harmonic loads without exceeding temperature limits.
Unbalanced Load
Unequal three-phase loads causing unequal currents, neutral current, and zero-sequence effects.
More Terms Starting with “R”
Reactor
An inductive device in power systems to limit current, absorb reactive power, or filter harmonics.
Rectifier Transformer
A transformer designed to supply rectifier/inverter loads with enhanced harmonic and DC magnetization handling.
Voltage Regulation
The change in secondary voltage from no-load to full-load as a percentage, indicating voltage stability.
Rated Capacity
The maximum continuous power output a transformer can deliver at specified conditions without exceeding temperature limits.
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