For orders and consultations, please contact our manager:
Natalia +38 097 469 77 06
Three-phase oil-filled transformer for special purpose in railway transportation transformers are hermetic two-winding three-phase oil transformers with a capacity ranging from 25 to 1000 kilovolt-amperes and a working voltage of 27.5 kilovolts. They are designed to power consumers with electricity in railway power supply systems.
To increase the cooling efficiency of three-phase oil-filled transformer for special purpose in railway transportation-25...1000 kVA transformers, corrugated walls are used.
Voltage regulation is carried out by switching without using excitation means (PBZ) from both the higher (HV) and lower (LV) voltage sides. The voltage change on the HV side is within ±2 × 2.5% of the nominal value.
Railway transformers have a nominal voltage on the primary winding of 27.5 kilovolts and a nominal voltage on the secondary winding of 0.4 kilovolts. The winding connection scheme and group are U/Un-0.
Design features:
- Three-phase oil-filled transformer for special purpose in railway transportation transformers are manufactured in a hermetic design, their internal capacity is not connected to the surrounding environment.
- They are fully filled with transformer oil, and there are no expansion tanks or air or gas "pillows".
- Changes in oil volume are compensated by the elastic deformation of the transformer tank corrugations, and they are completely isolated from the surrounding environment.
- This design improves the working conditions of the oil, prevents its moisture, oxidation, and the formation of deposits.
Three-phase oil-filled transformer for special purpose in railway transportation Transformer Maintenance:
- Three-phase oil-filled transformer for special purpose in railway transportation transformers require minimal pre-start-up and operational maintenance costs.
- They do not require preventive repairs and revisions throughout the entire term of operation. A float oil indicator located on the cover is used to monitor the oil level in the transformer tank, and a dial thermometer is used to measure the temperature of the upper layers of the oil.
Dimensions and weight of Three-phase oil-filled transformer for special purpose in railway transportation transformers from 25 to 63 kilovolt-amperes inclusive
Dimensions and weight of Three-phase oil-filled transformer for special purpose in railway transportation transformers from 100 to 400 kilovolt-amperes inclusive
Dimensions and weight of Three-phase oil-filled transformer for special purpose in railway transportation transformers from 630 to 1000 kilovolt-amperes inclusive
For orders and consultations, please contact our manager:
Natalia +38 097 469 77 06
