ZYD insulating oil purification process is meant for the regeneration of aged oil in transformers, The aged oil may well consist of moisture, dissolved gases or air, dust, carbon products as a result of arcing, rust from drum. These impurities not only minimize the di-electric strength but in addition induce a substantial ageing with the insulators. ASSEN ZYD Oil Purifying system will purify, dry and de-aerate oil to ensure dielectric strength and insulating properties of oil is restored. ZYD plant can also be utilised for oil transfer from transformer to oil storage tank and transformer evacuation.
After treatment,oil quality guarantees to the following specifications.
Moisture PPM ≤3
Gas content % ≤0.01
Impurity size μ ≤1 (no free carbon)
Breakdown voltage kV ≥75
IFT dynes/cm ≥40
Acid value mgKOH/g ≤0.03
Dielectric loss factors tgδ(90°C) ≤0.001
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