Description

With the development of the power industry, driven by urbanization,equipment intensification, technological advancements, and the urgent need for scenario adaptability, Rockwill has successfully developed the Top Mounted High/ Low Voltage Bushing Transformer (commonly known as the H59 earthing/Grounding Distribution Transformer), leveraging years of electrical design experience and integrating global advanced technical concepts.The H59 refers to a power transformer where both the high-voltage and low-voltage bushings are vertically installed on the top of the unit. This structural design allows all high- and low-voltage leads to be routed through the top, making it suitable for scenarios with strict lateral space constraints or requiring vertical busbar connections. It is a common type of oil-immersed transformer.

Service environment

Temperature：

• Maximum ambient temperature: +50℃;

• Top oil temperature rise: +50℃

• Average winding temperature rise: +55℃

Humidity:Daily average humidity 100%.

Above sea level:Maximum installation altitude: 1000m

Feature

• Reliable Grounding Protection: Specifically designed for grid grounding, it effectively suppresses fault currents to ensure system stability and personnel safety.

• Outdoor Environment Adaptability: With a sealed pad-mounted structure, it is waterproof, dustproof, and corrosion-resistant, suitable for complex outdoor conditions like humidity and dust.

• Space-Optimized Design: Pad-mounted installation saves ground space, ideal for land-intensive scenarios such as urban power distribution networks and commercial parks.

• Three-Phase Balanced Power Supply: Supports three-phase four-wire systems, balancing power and lighting loads with high efficiency and minimal voltage fluctuation.

• Convenient Maintenance: Centralized top bushing layout eliminates the need for complex opening during 检修 (maintenance), reducing downtime and costs.

• High Compatibility: Adapts to HV/LV distribution networks, directly connecting to municipal or industrial power systems, and flexibly integrating with grounding compensation equipment.

Main technical parameter

Product design