Blogs-Hebei Zhongbei Transformer Co., Ltd

How to Distinguish Single‑Phase from Three‑Phase Oil‑Immersed Transformers by Model

Oil‑immersed transformer models in China follow GB/T 1094.1‑2013 (identical to IEC 60076‑1:2011, modified). The first letter directly indicates the phase number, which is the fastest and most common identification m...

Types of Cooling Methods for Oil-Immersed Transformers

Oil-immersed transformers rely on insulating oil and external structures to dissipate heat.They adopt internationally unified letter code designations(per IEC standards).The main cooling types are classified by oil circul...

Differences Between S11, S13, and S15 (SH15) Oil‑Immersed Transformers

S11,S13,and S15(often labeled SH15)are three generations of energy‑saving 10 kV distribution transformers widely used in China.Higher model numbers mean better energy efficiency,lower no‑load loss,and higher upfront c...

How to Select the Capacity of Oil-Immersed Transformers According to Load

How to Select the Capacity of Oil-Immersed Transformers According to Load Selecting the proper transformer capacity is critical for safe operation,energy efficiency and cost control.The selection follows the steps of**cal...

Functions of Oil Tank and Radiator of Oil-Immersed Transformers

The oil tank and radiators are essential structural and heat-dissipating components.They work together to hold insulating oil,protect internal parts and dissipate operating heat,ensuring the transformer runs safely and st...

Functions and Adjustment Methods of Tap Changers for Oil-Immersed Transformers

A tap changer is a core component installed on the high-voltage winding of oil-immersed transformers.It adjusts the turns ratio by changing the number of active winding turns,so as to stabilize the output voltage when the...