Automatic voltage stabilizer

Single-phase Distribution Transformer accepts single-phase AC power and output single-phase AC power, typically at a higher or lower voltage level.

Single Phase Distribution Transformer is a type of power transformer that utilizes single-phase alternating current, meaning the Single Phase Distribution board relies on a voltage cycle that operates in a unified time phase. The ratio of primary (input) windings to secondary (output) windings determines the change in current. Single-phase transformers with a 1:1 ratio can be used to isolate circuits. Single-phase transformers abide by Ohm’s law, and outside of minor inherent loss due to heat, do not create or remove power.

They are often used to step-down long distance and localized transmission currents into power levels more suitable for residential and light-commercial applications.

Operating frequency range Transformers with high operating frequencies tend to be smaller, as fewer windings are needed to match impedances.
Primary voltage rating Input voltage range; several nominal voltages represent more than one primary winding.
Secondary voltage rating Output voltage range
Secondary current rating Rated output current
Power rating (VA) Maximum voltage suitable for a transformer, expressed in volts-amps.
Operating temperature Safe temperature range of a transformer in operation; transformer temperatures rise while in use.


Current limiting protection An overcurrent protection mechanism.
Flameproof The transformer has enhanced fire resistance, which is useful in potentially-reactive environments such as mines.
NEMA enclosure The transformer casing or container conforms to a NEMA rating, a standard regarding ingress protection for various industrial and environmental contaminants.
Indoor/outdoor rated The transformer is specified for certain operating environments. Oil-filled transformers are almost always installed outside.
Waterproof Transformer has a sealed case to prevent water intrusion.
Submersible Transformer can be submerged.
Tamperproof The transformer cabinet retains a lock or other vandal-resistant mechanism.

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