Power Transformers
Transformer Products
Power Transformers
Main transformers for transmission substations, utility grids, large industrial systems, renewable generation, and high-capacity power projects from 10 kV through 500 kV classes.
Overview
Power Transformers Overview
Main transformers for transmission substations, utility grids, large industrial systems, renewable generation, and high-capacity power projects from 10 kV through 500 kV classes.
Power Transformers can be engineered around electrical parameters, installation conditions, accessories, testing, and delivery requirements.
transmission substations, utility grids, generation plants, renewable energy, large industrial systems
MVA rating and voltage class, impedance and losses, insulation coordination, ONAN/ONAF cooling, OLTC and protection, transport and site assembly
approved data sheet, GA and transport drawing, nameplate and terminal drawings, test plan and reports, accessory schedules, packing and site-assembly files
incomplete system data, transport-route conflict, unclear loss guarantees, late test planning, unapproved interfaces
Power Transformers Product Lineup
Open the relevant product page by application, voltage class, capacity, installation method, and project standard to review configuration, testing, and enquiry data.
500kV Power Transformer
500kV main transformers for extra-high-voltage transmission substations and major grid interconnection projects.
400kV Power Transformer
400kV main transformers engineered for regional transmission networks, interconnectors, and utility substations.
345kV Power Transformer
345kV power transformers for North American and international grid, data-center, renewable, and industrial applications.
330kV Power Transformer
330kV main transformers for high-voltage transmission and large utility substations.
220kV Power Transformer
220kV power transformers for transmission substations, generation projects, and heavy industrial networks.
110kV Power Transformer
110kV main transformers for regional substations, industrial incoming power, and utility network expansion.
66kV Power Transformer
66kV power transformers for sub-transmission networks, industrial substations, and renewable grid connection.
Substation Main Transformer
Project-engineered main transformers configured around the system voltage, MVA rating, impedance, losses, cooling stages, transport limits, and acceptance tests.
PRODUCT SELECTION CENTER
Power Transformers: selection, configuration, and project files
Move from the application to the right product page, then confirm Power Transformers against electrical data, installation conditions, testing requirements, and delivery documents.
transmission substations, utility grids, generation plants, renewable energy, large industrial systems
MVA rating and voltage class, impedance and losses, insulation coordination, ONAN/ONAF cooling, OLTC and protection, transport and site assembly
approved data sheet, GA and transport drawing, nameplate and terminal drawings, test plan and reports, accessory schedules, packing and site-assembly files
Technical Details
Product lineup and configuration reference
Select the product by electrical duty, system interfaces, site conditions, protection, controls, testing, and delivery scope rather than by enclosure appearance alone.
Primary / system voltage: 500 kV; Published power or capacity: 500kV Power Transformer capacity matched to the buyer's load schedule; Cooling / ventilation: ONAN / ONAF; Design and test basis: IEC / project standard
Primary / system voltage: 400 kV; Published power or capacity: 400kV Power Transformer capacity matched to the buyer's load schedule; Cooling / ventilation: ONAN / ONAF; Design and test basis: IEC / project standard
Published power or capacity: 250 MVA project record; Primary / system voltage: 345 / 34.5 kV tested record; Design and test basis: KEMA test record; System arrangement: 345kV Power Transformer arrangement coordinated with the single-line diagram
Primary / system voltage: 330 kV; Published power or capacity: 330kV Power Transformer capacity matched to the buyer's load schedule; Cooling / ventilation: ONAN / ONAF; Design and test basis: 330kV Power Transformer design and tests set by the project standard and destination
Primary / system voltage: 220 kV; Published power or capacity: 220kV Power Transformer capacity matched to the buyer's load schedule; Cooling / ventilation: ONAN / ONAF; Design and test basis: 220kV Power Transformer design and tests set by the project standard and destination
Primary / system voltage: 110 kV; Published power or capacity: 110kV Power Transformer capacity matched to the buyer's load schedule; Cooling / ventilation: ONAN / ONAF; Design and test basis: 110kV Power Transformer design and tests set by the project standard and destination
Primary / system voltage: 66 kV; Published power or capacity: 66kV Power Transformer capacity matched to the buyer's load schedule; Cooling / ventilation: ONAN / ONAF; Design and test basis: 66kV Power Transformer design and tests set by the project standard and destination
Primary / system voltage: 10kV-500kV; Published power or capacity: Substation Main Transformer capacity matched to the buyer's load schedule; Cooling / ventilation: ONAN / ONAF; Design and test basis: Substation Main Transformer design and tests set by the project standard and destination
Published values identify catalog platforms or reference configurations. Final ratings, component brands, withstand levels, dimensions, losses, temperatures, protocols, and guarantees follow the approved project data sheet.