20kv Series Oil-immersed Distribution Transformer

Description of 20kv Series Oil-immersed Distribution Transformer

Oil immersed power transformer, based on know-how accumulated over decade years in oil immersed distribution transformer field, YUEBIAN’s oil-immersed transformers have been supplied to various industries including semiconductor, steel work, and petrochemical.

Further, as an outstanding and comprehensive oil immersed distribution transformer solution provider, we respond to the oil immersed power transformer demanding requirements of our customers by developing and manufacturing both eco-friendly pole mounted distribution transformer and high-efficiency oil immersed power transformer.

Both oil immersed distribution transformer and pole mounted distribution transformer are designed for power centers, substations and network, also for pad mounted oil immersed power transformer, used in public distribution system, commercial building and industrial complexes

Phase: three

Cooling Method: ONAN

Frequency: 50 or 60Hz

Vector Group: Dyn11, Yd11, Ynd11, or others

Capacity Range: 30KVA to 2500KVA

Primary Voltage: 15KV to 22KV

Coolers: corrugated wall or radiator

Oil preservation: hermetically sealed or conservator/free breathing

Tap changer: Off-circuit or On-load. 3 steps; 5 steps; 7 steps; 9 steps; 13 steps; 17 steps

Cooling medium: mineral oil

Winding materials: aluminum or copper

Parts: Oil draining valve, Oil level indicator, Thermometer, Gas relay, Pressure relief valve, Earthing terminal, Lifting lugs, Nameplate, Outdoor bushings, etc.

Rating Plate: Yes (YUEBIAN brand or Customer brand)

Execution Standard: IEC 60076, GB1094.1-2018

Features of 20kv Series Oil-immersed Distribution Transformer

The three-phase oil-immersed 20kv transformer produced by our company adopts a new insulation structure to improve the short-circuit resistance; the iron core is made of high-quality cold-rolled silicon steel sheet; the high-voltage windings are made of high-quality oxygen-free copper wire. It has a multi-layered cylindrical structure; all solid parts are specially secured against loosening.

The product has the characteristics of high efficiency and low loss, which can save a lot of power consumption and running cost, and has significant social benefits. It is a new technology product promoted.

•Unique Welding Process, No Leakage

Eliminate the high and low pressure risers to reduce welds; the fuel tank wall uses wide-width steel plates to reduce joints; a unique welding process to ensure welding quality.

•Groove Structure

All sealing flanges are grooved to ensure sealing performance.

•Control Leakage

All the oil drain valves of the transformer are made of copper valves, and the radiator uses a vacuum butterfly valve to reduce the leakage of the transformer.

•Low Loss, Low Noise

Adopt domestic and foreign advanced technology and equipment, professional research and development. The core adopts high-performance cold-rolled oriented silicon steel sheet and fully automatic robot lamination machine with small shear burr and low lamination coefficient, which effectively reduces the no-load loss, no-load current and noise of the transformer. The no-load loss is 5% to 15% lower than the manual lamination.

As one of electrical power transformer manufacturers, we have types of oil transformer for sale, if you have needs, please contact us.