Explore our flagship, highly reliable, and VDE-compatible medium-voltage air-insulated panels designed for municipal grids and heavy industry.
Zhejiang Zeno Electric Co., Ltd. is a national high-tech enterprise located in Ningbo, with a registered capital of 52 million yuan. Our corporate headquarters integrates research and development (R&D), manufacturing, sales, and service of advanced medium-voltage and low-voltage power equipment and integrated smart energy systems.
Rooted in Ningbo and supported by a highly qualified team of electrical engineers, Zeno Electric has successfully expanded its commercial presence across China, the European Union, and international markets. Through continuous innovation and strict adherence to Western European grid requirements, our organization has become a reliable partner in the power distribution sector.
Driven by the global transition toward digitalized energy systems, we prioritize eco-efficient engineering, safety, and smart grid interoperability. We provide bespoke electrical equipment engineered to minimize downtime and ensure maximum reliability in high-load industrial installations.
Our comprehensive production facility focuses on high-precision engineering for energy infrastructures. Our key technical offerings include:
In addition, we execute turnkey electrical engineering projects up to 220kV, covering initial grid simulation, engineering, custom manufacturing, Factory Acceptance Testing (FAT), transport logistics, and on-site commissioning.
Analyzing the technical dynamics of the German *Energiewende* and how it dictates switchgear engineering standards.
The German electricity sector is undergoing a profound transformation driven by the Renewable Energy Sources Act (EEG). As centralized coal and nuclear power plants phase out, they are replaced by decentralized onshore/offshore wind farms and commercial solar installations. This transition places unprecedented stress on distribution grids managed by regional DSOs (Distribution System Operators) such as Netze BW, E.ON, and Westnetz.
Air-Insulated Switchgear (AIS) acts as the critical control and safety node in these modern networks. German industrial plants (e.g., automotive factories, chemical parks, and data centers) demand switchboards with robust short-circuit current ratings (up to 40kA/3s) and intelligent protection systems. Modern AIS must seamlessly interface with substation automation protocols (IEC 61850) to support dynamic load balancing and fault localization.
For high and medium-voltage installations in Germany, safety and operational reliability are regulated by VDE (Verband der Elektrotechnik Elektronik Informationstechnik) standards. Air-insulated switchboards must strictly conform to DIN EN 62271-200 (VDE 0671-200), regulating metal-enclosed switchgear up to 52kV.
Critical requirements include:
• Internal Arc Classification (IAC): Protection of operating personnel under fault conditions (e.g., IAC AFLR classification).
• Loss of Service Continuity (LSC): LSC2B-PM designs ensuring maximum system uptime during maintenance of adjacent compartments.
• Environmental Resistance: High insulation integrity to withstand the damp and industrial atmospheres of Northern and Western Germany.
Inside our advanced manufacturing plant in Ningbo, where high-grade materials are transformed into VDE-compliant electrical infrastructure under strict quality management.
Our engineering timeline aligns with the strict carbon neutrality regulations of Germany and the broader European Union.
Zero-GWP Green Switchgear
Under the EU's F-gas regulations, SF6 gas is progressively restricted. Zeno Electric is prioritizing the development of Dry Air and fluoronitrile-based gas mixture medium-voltage solutions. These provide equivalent dielectric strength with a Global Warming Potential (GWP) of less than 1, meeting the environmental criteria of municipal utilities in regions like Bavaria and North Rhine-Westphalia.
Smart Grid Automation Integration
Integrating non-conventional instrument transformers (NCITs), optical current sensors, and intelligent electronic devices (IEDs) into our KYN28 and SM6-type switchboards. This allows real-time diagnostics, remote control, and fast busbar protection, aligning with German smart grid digitalization directives.
AI-Powered Substation Health Indexing
Installing online partial discharge (PD) tracking, busbar contact temperature monitoring, and mechanical drive signature analysis. Operators can schedule maintenance based on actual wear data rather than fixed intervals, reducing operational expenditure (OPEX) in large industrial zones.
Explore our full line of type-tested power distribution boards, air-insulated ring main units, and custom substation solutions.
For high-liability installations (e.g., public grids or energy hubs in Germany), un-tested switchboards present significant risks. Zeno Electric addresses this by subjecting our core designs to type testing. Our SM6 RMU and KYN28 panels have completed full performance evaluations under international laboratory conditions (including ASTA-approved protocols).
These tests verify:
• Temperature rise limits under rated continuous current (e.g., 630A to 3150A).
• Dielectric isolation testing (power frequency and lightning impulse withstand voltages).
• Mechanical operation and interlocks safety validation.
• Short-time withstand current (Icw) and peak withstand current (Ipk) capabilities.
From our headquarters in Ningbo, we offer customized engineering support to German clients. Each project is supported by a dedicated applications engineer who works directly with the buyer's CAD layout and single-line diagrams.
We provide full Factory Acceptance Testing (FAT) documentation, including digital witness options via high-definition streaming. This ensures that when the switchboard arrives at a German port (e.g., Hamburg or Bremerhaven), it is pre-configured and ready for final Site Acceptance Testing (SAT) and utility grid connection clearance.
Expert answers regarding compliance, engineering specifications, and shipping of our medium-voltage solutions to the European Union.
Get in touch with our engineering team for a comprehensive, VDE-compliant switchgear proposal, budget pricing, or type-test verification documents.
Zeno Electric
