Step-up Transformer

Step-up Transformer — Product Overview

A step-up transformer is a type of power equipment primarily used to increase the input voltage to the desired output voltage level. It works through the principle of electromagnetic induction, converting low voltage signals into high voltage signals, and is commonly used in power systems to provide high voltage supply to long-distance transmission lines or high-power equipment. ‌

VoltCloud Electric engineers and manufactures this equipment for utility, industrial and renewable-energy projects. Every unit is routine-tested before shipment and delivered with test records and export documentation. Ratings shown below are from our current production data — non-standard capacities, voltage ratios and loss classes are engineered to order.

Key Specifications

Need a rating that is not listed? Send us your duty sheet and we will confirm feasibility and lead time.

Product Details

A step-up transformer is mainly composed of an iron core, primary winding, secondary winding, insulation material, and outer shell. The iron core is made of stacked silicon steel sheets, which have high magnetic permeability and low hysteresis loss. The primary winding is usually located on the outer side of the iron core and is wound with thicker wires; The secondary winding is located on the inner side of the primary winding and is wound with thinner wires. Insulation materials are used between the insulation winding and the iron core to prevent current leakage and short circuits; The casing is used to protect the internal components of the transformer while providing good insulation and heat dissipation.

The working principle of a step-up transformer is based on electromagnetic induction. When the input voltage passes through a winding, an alternating magnetic field is generated. This alternating magnetic field will induce electromotive force in the secondary winding, thereby generating output voltage. According to the law of electromagnetic induction, the ratio of output voltage to input voltage is equal to the ratio of the number of turns in the secondary winding to the number of turns in the primary winding. Therefore, by adjusting the turns ratio of the primary and secondary windings, different voltage boosting transformations can be achieved.

Step up transformers are widely used in factories, power stations, substations, and other places, especially in transmission networks, to boost the output of electricity from generators to reduce power transmission losses. In addition, step-up transformers are also used in laboratories and research fields to provide high voltage for experimentation and testing.

Typical Applications

• Distribution networks and utility substations
• Industrial plants, mining and infrastructure projects
• Solar PV, wind and battery energy-storage projects
• Commercial buildings, data centres and public facilities

Testing, Certification & Delivery

• Routine tests on every unit, with test records supplied.
• Type-test reports and qualification certificates available on request.
• Export packing, documentation and installation guidance for overseas projects.

FAQ

Can the ratings be customised?

Yes. Capacity, voltage ratio, vector group, loss class and enclosure protection are engineered to your specification — share your duty sheet for a matched proposal.

What is the lead time?

Lead time depends on rating and quantity. Contact our sales team for the current production schedule.

Do you supply test reports?

Every unit ships with routine test records; type-test reports are available for the relevant series.

Request a Quote

Send us the capacity, primary/secondary voltage, vector group, applicable standards and destination market. Request a quote → or browse the full product range.