The 66kV oil-immersed transformer is critical high-voltage equipment for power grids and new energy stations. Transformer oil provides insulation and heat dissipation for voltage conversion. Made to IEC standards, it has low loss and stable performance. Fitted with gas relay and temperature monitors, it ensures safe continuous operation. Widely used in urban power supply, mining and large industrial projects with minimal maintenance.
l Capacity: 1,000 kVA ~ 63,000 kVA
l Rated primary voltage: 66 kV
l Rated secondary voltage: 0.4 kV ~ 11 kV（10.5kV/6.6kV）
l Tap positions: 5 ~ 9
l Frequency: 50/60 Hz
l Phase: Three-phase
l Vector Group: Dyn11, Yyn0, Yd11, YNd11, etc.
l Impedance Voltage: 6.5% ~ 10%
l Adopts high-grade silicon steel sheet, low no-load loss & load loss, low operating noise.
l Fully sealed tank structure, effectively slow down insulation aging and reduce maintenance.
l Equipped with gas relay, oil temperature & oil level gauge, pressure relief valve for multi-protection.
l Widely used in power grid, photovoltaic power station, mining and heavy industry.
l Custom design available for special project requirements.
