High Voltage 220kv Oil Immersed Power Distribution Transformer
Key features are as follows:
High voltage adaptability: The rated voltage level is 220kV, which falls under the category of ultra-high voltage, mainly used for converting the electrical energy of ultra-high voltage power grids into lower voltages (such as 110kV, 35kV, etc.), achieving power transmission and distribution between regional power grids, and serving as a key node connecting large power stations, cross-regional transmission lines, and medium-high voltage distribution networks.
Oil-immersed structural characteristics: Using transformer oil as the insulation and cooling medium, the insulation performance is stable, the heat dissipation efficiency is high, and it can operate reliably in outdoor harsh environments (such as high temperatures, severe cold, high humidity); some adopt fully sealed oil tank designs to reduce oil contact with air, slow down oxidation and aging rates, extend service life, and reduce maintenance frequency.
High reliability design: The core uses high-magnetic-conductivity cold-rolled silicon steel sheets to reduce no-load losses; the windings use high-purity copper wires, which are specially wound to enhance mechanical strength and short-circuit resistance; a complete set of protection components, such as gas relays (monitoring internal fault gas production), pressure relief valves (preventing oil tank overpressure), and thermometers (real-time monitoring of oil temperature), are equipped to respond quickly to abnormal conditions and ensure equipment safety.
Large capacity and high performance: The rated capacity is usually large (ranging from several thousand to tens of thousands of kVA), capable of meeting large-scale power transmission requirements; through optimized electromagnetic design, it reduces load losses and no-load losses, conforms to high-efficiency energy-saving standards, and reduces energy losses during power transmission.
Application scenarios: Widely used in ultra-high voltage transmission networks, large substations, regional power grid hubs, etc., undertaking the important task of reducing 220kV ultra-high voltage electrical energy before distribution to lower-level grids, providing stable power support for cities, industrial parks, and large industrial users.