Power Transformer

Technical Range

Key Features

High-voltage capacity: Designed for demanding high-voltage transmission applications, including project-specific ratings up to 220 kV and beyond.

Energy-efficient operation: Low core and copper losses help improve operating efficiency and reduce ongoing power losses.

Advanced cooling: Oil-immersed and forced-cooling arrangements help maintain stable operating temperatures under high loads.

Robust construction: The transformer structure is designed to withstand mechanical and electrical stresses in demanding environments.

Protection and control: Depending on the configuration, protection can include temperature sensors, pressure-relief devices and on-load tap-changing equipment.

Available Configurations

• Capacity range from 1 MVA to 25 MVA
• Multiple published voltage classes from 1.1 kV to 69 kV
• ONAN, ONAF, OFAF, ONWF and OFWF cooling arrangements
• OCTC and OLTC tap-changing options
• Customised voltage classes and project-specific configurations

Applications

Power generation and utilities: Power-generation stations, substations and electrical transmission systems.

Renewable energy: Wind-power projects, hydropower projects and solar projects.

Heavy industry: Cement plants, steel plants, mining facilities and refineries.

Project and captive power: Captive-power projects and engineering procurement and construction projects.

Description

Power transformers are critical components in transmission networks because they increase or decrease voltage while transferring large quantities of electrical power. Volta Transformers manufactures high-capacity solutions for utilities, generation facilities, substations, industrial plants and renewable-energy projects.

The available range extends from 1 MVA to 25 MVA and includes multiple voltage classes. Cooling options include ONAN, ONAF, OFAF, ONWF and OFWF, allowing the thermal design to be selected according to load and operating conditions. OCTC and OLTC tap-changing options support voltage adjustment and system flexibility.

The transformers are engineered for efficient performance with reduced core and copper losses, robust construction and project-appropriate protection. Contact Bijali Bazaar with the required capacity, voltage ratio, cooling method, tap-changer preference and installation conditions to identify the suitable configuration.

Buyer Information Required

• Required capacity in kVA or MVA
• Input and output voltage
• Required cooling arrangement
• OCTC or OLTC tap-changer preference
• Load profile and operating conditions
• Installation environment and applicable technical standards