Capacity: upto 10 MVA of voltage class upto 33KV
Makpower’s Auxiliary Transformers are engineered to ensure uninterrupted auxiliary power supply for critical operations across various industrial and utility applications. These transformers are designed with high impedance values to endure rapid fault conditions, ensuring long-term performance, safety, and system reliability under heavy-duty operations.
Range: Makpower manufactures a comprehensive range of Auxiliary Transformers with a power capacity of up to 10 MVA and voltage class up to 33kV. Available with or without OLTC (On Load Tap Changer), these transformers are compatible with various system requirements including rolling mill, substation, and power plant auxiliary loads.
> Power Rating: Up to 10 MVA for continuous-duty applications.
> Voltage Class: Maximum of 33kV for primary voltage.
> Transformer Type: Oil-immersed design, with optional OLTC for voltage regulation.
> Impedance Design: High impedance levels to withstand fault current surges.
> Cooling Type: ONAN/ONAF depending on site conditions and load.
> Applications: Suitable for rolling mills, substations, and industrial auxiliaries.
Makpower offers auxiliary transformers in flexible configurations to match diverse load demands and system layouts.
> Unit Auxiliary Transformer (UAT): Installed near generating stations to feed internal loads.
> Station Auxiliary Transformer (SAT): Feeds auxiliary power during station start-up or shutdown.
> Rolling Mill Specific: Configured to support fluctuating load patterns and harsh conditions.
> With OLTC/Without OLTC: Optional on-load tap changers for dynamic voltage regulation.
> High Fault Tolerance: Built to handle rapid fault conditions without damage.
> Compact and Durable: Engineered for space-constrained installations and continuous operation.
> Versatile Use: Suitable for indoor and outdoor applications across various industries.
> Efficient Operation: High-grade insulation and thermal management ensure energy-efficient performance.
> Custom Built: Designed as per customer specifications and site load profiles.
> Power Plants: UAT and SAT used for internal auxiliary loads in generation stations.
> Steel and Rolling Mills: Ensures reliable power for motors, drives, and controls.
> Substations: Supplies power to breakers, relays, and control panels.
> Cement and Mining Plants: Delivers consistent auxiliary power to conveyors and crushers.
> Petrochemical Facilities: Maintains control room and auxiliary system uptime.
Makpower adheres strictly to industry-leading standards to ensure durability and safety. Each unit undergoes rigorous testing and inspection under simulated fault and load conditions.
> Tested for Safety: Verified for dielectric, thermal, and short-circuit performance.
> Standards Followed: Compliant with IS, IEC, and other global quality frameworks.
> Robust Manufacturing: Built using premium-grade silicon steel, copper, and insulation materials.
> Custom Design: Tailored solutions for varied industrial and utility needs.
> Commissioning Support: Expert assistance for installation and performance testing.
> After-Sales Service: Dedicated team ensures ongoing maintenance and technical support.
> Warranty & AMC: Flexible service contracts and warranty plans for long-term value.
They are commonly used in power stations, rolling mills, cement factories, and process industries to power support systems that maintain plant operations.
A Unit Auxiliary Transformer (UAT) gets its input from the main generator and feeds essential auxiliary systems, while a Station Auxiliary Transformer (SAT) is connected to the grid and supplies power during generator shutdowns or startups.
Makpower designs its auxiliary transformers with high impedance, reliable OLTC options, and robust construction—ensuring safe and uninterrupted operation even in fault-prone or fluctuating environments.
