Solar Transformer
A transformer optimized for solar PV plants handling inverter harmonics and variable loading.
A solar transformer is designed for solar PV applications with unique characteristics: inverter harmonics, daytime-only loading, elevated ambient in solar-rich regions.
Must handle inverter harmonics (K-4 to K-13), accommodate extended nighttime energization without load where no-load losses dominate, and withstand high temperatures.
Utility-scale: step-up from MV collector to transmission. Distributed: distribution transformers with reverse power flow.
QDTB provides solar transformer solutions including prefabricated substations with integrated switchgear. New energy guide covers solar design.
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.
No-Load Loss
Power consumed when energized but not supplying load, consisting of core losses (hysteresis + eddy currents).
More Terms Starting with “S”
Step-Up/Step-Down Transformer
Transformers increasing (step-up) or decreasing (step-down) voltage levels based on the turns ratio.
Short-Circuit Impedance (%Zsc)
Transformer impedance measured with one winding short-circuited, determining fault current and regulation.
Substation
A facility housing transformers, switchgear, and protection for voltage transformation and power routing.
Shielded Winding
A transformer winding with shielding to reduce surge voltage stress and improve impulse distribution.
More in “Special Transformers”
Arc Furnace Transformer
A heavy-duty transformer designed to supply power to electric arc furnaces used in steelmaking and metal smelting.
EV Charging Transformer
A transformer for EV charging stations handling harmonic-rich loads and variable power demands.
Railway Traction Transformer
A specialized transformer for railway electrification converting supply voltage for traction motors.
Need help with transformer selection?
QDTB engineers can help you choose the right equipment based on your specific requirements