EN
There are special challenges involved in upgrading urban grid. Limited space, no disruption or delay to construction—and projects need to be completed in a tight timeframe. The traditional stick built substation (SBS) —which is traditionally built onsite one by one, cannot suffice the requirements of modern city environment. The modular prefabricated substation is proving to be the answer, providing factory engineered reliability and minimal impact on site. Jiangsu Ryan Electric provides modular dry-type and oil-immersed transformer solutions, switchgear solutions, and control solutions to complete the transportable modular prefabricated substation solutions. Prefabricated substation solutions by us, which are exported to more than 80 countries and also engineered in collaboration with Eaton, are used for urban renewal projects throughout the world.
Minimal On-Site Construction and Disruption
The time needed to construct a traditional substation is months and includes excavation, foundation pouring, equipment assembly and extensive cabling. This disruption, in dense urban areas, has impacts on businesses, residents and traffic flow, leading to complaints and delays to the project.
Jiangsu Ryan Electric's modular prefabricated substation designs are just the opposite. Units are fully assembled, wired and tested in our manufacturing facility prior to shipment. Prefabricated substation comes as a "whole package deal" to site. Typically foundation preparation, placement of the units, and connections to utilities take only days, not months to install. Less work on site reduces disruption in the surrounding area, means a quicker build time and eliminates weather delays, which are common in construction. In situations that mandate speed and community impact, our prefabricated substation solution can't be beaten.
Compact Footprint for Space-Constrained Sites
One of the greatest costs in the world is urban real estate. Installing a new substation in a crowded city or expanding an existing substation is no easy feat. Traditional designs take up a lot of space and acquisition of property can throw a spanner in the works. Jiangsu Ryan Electric's modular prefabricated substations are designed to be compact. Our prefabricated substation units are built to save space as well as combining transformer, switchgear and control systems into a single optimized enclosure. Several modules can be vertically stacked in available sites. We have designs of prefabricated substations that can fit within vault sizes that would not be possible with traditional construction for underground installs. This density allows substation installation to be located where it would not otherwise fit, such as under buildings, in existing utility corridors or on limited roadside properties. Our prefabricated substation solutions overcome site constraints that often derail urban utility projects.
Factory Quality Assurance and Reduced Field Risk
Construction sites bring its own challenges and risks—the weather influences how the concrete cures—field wiring requires each craftsman to be adept at their job—and coordination among trades adds the possibility of mistakes. A modular prefabricated substation solution allows most work to be performed in the factory environment, vastly enhancing the quality and reducing the risks in the field. Prefabricated substation units produced by the Jiangsu Ryan Electric are produced in our ISO certified production plant, using automatic production and strict quality control. Skilled technicians assemble transformers, integrate switchgear and install control wiring under consistent conditions. All prefabricated substations are pre-tested in our 35 kV and 110 kV test laboratories prior to delivery, to validate the substation during routine, type and special testing for compliance with specified requirements, which are further CNAS accredited. The installation in the field is simply a connecting process, which does not have several points of failure that exist in the traditional construction process. This factory quality assurance equates to a reliable installation and commissioning of urban grid upgrades for long-term operation.