Pad Mounted Transformer for Wind Farm

Pad Mounted Transformer for Wind Farm: The ZGS11-Z.F wind power pad-mounted transformer is used in 35 kV terminal power supply systems and combines the substation, power distribution equipment, metering, control and protection devices in one unit.

The pad mounted transformer also includes the light controller, soft startup device, and remote controlling device.

Features

The fully sealed oil tank houses a 35 kV type 11 oil-immersed step-up transformer. The radiators are well laid out, and the tank is fitted with high-performance seals, a pressure relief valve, gas relay, oil level gauge and temperature controller. Advantages include low loss, low noise, low temperature rise, high short-circuit resistance, high overload capacity and no leakage.

The high-voltage load switch and high-voltage fuses are also placed in the oil tank, with transformer oil as the insulating medium, which gives good electrical performance.

The high-voltage room has enhanced anti-contamination outlet bushings ending in fully insulated cable connectors, and a surge arrester to reduce the risk of overvoltage. It also has a sensor, plus electromagnetic locks and a live-line indicator to prevent incorrect operation.

The low-voltage room normally has a dual-line incoming supply and is fitted with a circuit breaker, disconnector, current transformer, surge arrester and other components, plus an auxiliary transformer that supplies power to the substation itself.

The three compartments are structurally independent and electrically interconnected, which makes operation safe, convenient and reliable. The enclosure uses labyrinth sealing with high-performance long-life seals, and all incoming and outgoing lines and vents have dust chambers that keep out dust, rain and snow. The unit is fully insulated, fully sealed and maintenance-free, and is designed for 20 years of use in harsh environments.