Switching Impulse Creepage Discharge in Transformer Oil

A New Switching Impulse Generator Based on Transformer Boosting and Insulated Gate Bipolar Transistor Trigger Control

Ming Ren 1, Chongxing Zhang 1, Ming Dong 1,*, Rixin Ye 1 and Ricardo Albarracín 2 1 State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China; [email protected] (M.R.); [email protected] (C.Z.); [email protected] (R.Y.) 2 Department of Electrical, Electronics and Automation Engineering and Applied Physics, Polytechnic U...

Dibenzyl Disulfide in Transformer Oil

Understanding the Discharge Activities in Transformer Oil under AC and DC Voltage Adopting UHF Technique

Design of Converter transformer insulation is a major challenge. The insulation of these transformers is stressed by both AC and DC voltages. Particle contamination is one of the major problems in insulation structures, as they generate partial discharges leading it to major failure of insulation. Similarly corona discharges occur in transformer insulation. This partial discharge due to particl...

Moisture Equilibrium in Transformer Paper - Oil Systems

he presence of moisture in a transformer deteriorates transformer insulation by decreasing both the electrical and mechanical strength. In general, the mechanical life of the insulation is reduced by half for each doubling in water content [l]; the rate of thermal deterioration of the paper is proportional to its water content [2]. Electrical discharges can occur in a high voltage region due to...

Preparation of Reference Material 8504, Transformer Oil

A new reference material (RM), RM 8504, has been prepared for use as a diluent oil with Aroclors in transformer oil Standard Reference Materials (SRMs) 3075 to 3080 and SRM 3090 when developing and validating methods for the determination of polychlorinated biphenyls (PCBs) as Aroclors in transformer oil or similar matrices. SRMs 3075-3080 and SRM 3090 consist of individual Aroclors in the same...