Product Overview

The 6300kVA oil immersed power transformer, with its advantages of large capacity and high stability, is suitable for various high load power consumption scenarios. Its main applications include: large industrial and mining enterprises (chemical, metallurgical, machinery manufacturing, etc., meeting the centralized power needs of high power equipment in production workshops); new energy power plants (photovoltaic, wind power, energy storage power stations, used for voltage transformation and efficient power transmission); urban core distribution hubs (ensuring large scale centralized power consumption in residential areas, commercial complexes, data centers, etc.); and key infrastructure projects (rail transit, airports, ports, etc., providing stable and continuous power supply support).

Technical Specifications

Parameters	Technical Specifications
Model	Power Transformer
Rated capacity	6300kVA (customizable upon request)
Input voltage (high voltage)	6.6kV,10kV,11kV,20kV,35kV(Customization available upon request)
Output voltage (low voltage)	0.38kV,0.4kV(Customization available upon request)
Voltage regulation range	±5%,±2×2.5%(Customization available upon request)
Number of phases	Three phase (single phase can also be specified)
Frequency	50Hz/60Hz
Link Group	Dyn11,Yyn0,Yd11,Dyn5(Customization available upon request)
Winding material	Copper / Aluminum
No load loss	Meets national standards / IEC Level 1 / Level 2 energy efficiency
Load loss	Meets national standards / IEC Level 1 / Level 2 energy efficiency
No load current	Standard design values, low loss optimization
Temperature rise limit	≤60K (oil top layer)
Short circuit impedance	Customization available upon request
Cooling method	ONAN(Oil immersion and self cooling)
Insulation class	Grade A
Partial discharge	≤20pC (Standard requirement)
Implementation Standards	IEC,GB,JIS,ANSI,IEEE,UL

product-800-892

product-800-782

product-800-809

Oil Immersed Transformer FAQ

1. Where can I install an oil immersed transformer? Do I need fire protection?

Typically outdoors – substations, industrial plants, solar farms. Indoors requires a fire‑rated vault or oil containment pit due to flammability.

2. What maintenance does an oil immersed transformer require?

Periodic oil testing (dielectric strength, moisture, dissolved gases), filter regeneration, and inspection of bushings, gaskets, and cooling fans. With proper care, service life exceeds 30 years.

3. How long can an oil immersed transformer last?

With proper maintenance, typical service life is 30–40 years. Oil regeneration and gasket replacement can extend it further.