Dehler
Dehler
As the world pivots toward renewable energy, the stability of medium-voltage networks depends on high-performance Ring Main Units (RMUs). Our custom 3-way surge protectors are designed to mitigate the volatility of solar and wind inputs.
Modern urbanization requires underground cabling and compact substations. Our surge protection solutions enable RMUs to operate safely in space-constrained urban environments where lightning and switching surges are frequent.
For steel mills, coal mines, and data centers, power downtime is catastrophic. Surge protection in 3-way RMUs ensures that transient overvoltages do not damage sensitive downstream electronics.
Established in 2016, Dehler Technology Co., Ltd. is a technology-driven enterprise integrating R&D, production, sales, and service. We specialize in the high and low voltage power equipment industry, located in the Yanpan Economic Development Zone, Yueqing City.
Our expertise spans high & low voltage switchgear, prefabricated substations, cable branch cabinets, and sophisticated vacuum circuit breakers. We adhere to the business philosophy of "survival through quality, development through technology, and efficiency through management."
Traditional surge arresters often fail during high-energy switching events. Our "Next-Gen" 3-Way Arrester utilizes Metal Oxide Varistor (MOV) technology with enhanced thermal stability, ensuring protection even in high-humidity or high-altitude environments.
Future RMUs will feature real-time leakage current monitoring, allowing for predictive maintenance before an arrester fails.
We are transitioning towards SF6-free ring main units, utilizing solid insulation and air-insulated technologies for a greener grid.
Miniaturization of surge arresters allows for smaller 3-way RMUs without sacrificing dielectric strength or BIL ratings.
Fully compliant with IEC 62271 and IEEE C37.60 standards, ensuring seamless integration into any international power grid.
Over the years, we have diversified our product offerings and continuously upgraded our services. Strengthening quality management is our prerequisite for increasing market share. We strictly adhere to national quality system standards, cultivating a positive corporate image and long-term partnerships.
“High-quality products, superior technology, and impeccable service" are the goals pursued by Dehler. We innovate our business philosophy, improve management capabilities, and accelerate resource integration to compete in the international industrial electrical market.
Year Established
Quality Certified
Global Partners
Technical Support
Supporting high-speed rail networks with robust RMU protection to prevent signal interference and power surges.
Custom surge protection for wind farms and solar arrays where lightning strikes are a high-probability risk.
Explosion-proof and corrosion-resistant designs for the most demanding industrial environments globally.
An RMU is a factory-assembled, metal-enclosed control switchgear used at load connection points of a ring-type distribution network. A "3-way" configuration typically includes two incoming lines and one outgoing transformer feeder, all protected by integrated surge arresters.
Surge protectors (arresters) limit the voltage applied to the RMU insulation during lightning strikes or switching transients, preventing insulation breakdown and extending the equipment's lifespan.
Yes. As a leading factory and supplier, we specialize in custom configurations ranging from 12kV to 40.5kV, tailored to local grid standards and specific environmental requirements.
Regular visual inspections and testing of leakage current are recommended. Our advanced units are designed for minimal maintenance with high reliability over a 20+ year service life.
