Company News-Hebei Zhongbei Transformer Co., Ltd

Advantages of S20 & S22 High-Efficiency Oil-Immersed Transformers

S20(Class 2 energy efficiency)and S22(Class 1 energy efficiency)are China’s top-tier oil-immersed distribution transformers per GB 20052-2020,featuring ultra-low losses,robust reliability,minimal maintenance,and full li...

Selection of Corrosion-Resistant Oil-Immersed Transformers for Mining and Chemical Areas

Mining and chemical regions feature severe corrosion (dust, moisture, acid-base/salt spray, hazardous gases like H₂S, Cl₂, SO₂) and potential explosion risks. The selection prioritizes corrosion grade matching, full...

Key Inspection Items for Outdoor Oil-Immersed Transformers in Rainy Seasons

Rain,high humidity,lightning and waterlogging bring multiple risks to outdoor transformers.The patrol focuses on waterproofing,drainage,lightning protection,insulation,sealing and operational status to eliminate hidden da...

Key Operation Points for Withstand Voltage Test of Oil-Immersed Transformers

The power frequency withstand voltage test is a critical dielectric test to verify the insulation performance of oil-immersed transformers.Strict operation specifications must be followed to ensure test accuracy and perso...

Is Forced Re-energization Allowed After Internal Fault Tripping of Oil-Immersed Transformers?

Forced re-energization is strictly prohibited when an oil-immersed transformer trips due to confirmed internal faults.Internal failures include winding short circuits,insulation breakdown,core damage,internal arcing and o...

Emergency Handling for Oil-Immersed Transformers When Flooding Submerges the Base

Flooding around or submerging the transformer base brings risks such as water ingress,insulation breakdown,short circuit and electric leakage.Follow standardized emergency procedures in the order of power cut,on-site isol...