AVR Grid Solutions by Claude Lyons &
TEC

Trusted Power Quality and Voltage Control Experts

Claude Lyons, in collaboration with TEC (Transformer and Electrical Company), has been a cornerstone in power quality and voltage regulation for decades. Together, we deliver dependable, innovative solutions tailored for Distribution Network Operators (DNOs) across the UK and internationally.

Why DNOs choose our voltage stabilisers

Regulatory Compliance

Ensure consistent voltage delivery within statutory limits, even under fluctuating load and generation conditions. Our AVRs are built to meet SP-NET-SST-510, ensuring seamless integration into grid infrastructures.

Grid Modernisation

Modular and containerised designs allow for rapid deployment, easy integration with smart grid systems, and plug-and-play functionality - ideal for both retrofit and new-build projects.

Enhanced Reliability

Advanced thermal management and intelligent cooling reduce wear on components, extend service intervals, and lower long-term maintenance costs - keeping your network running reliably with minimal intervention.

Claude Lyons Voltage Stabiliser Enclosures

Our Solutions

High-Performance AVRs for Grid & Substation Applications

Engineered for durability and minimal maintenance, our AVRs are built to perform in the most demanding environments. Designed and manufactured in the UK and supported by a rich engineering heritage, they reflect a legacy of technical excellence and meet the highest benchmarks for reliability and performance.

Recent Project Spotlight
Powering SSEN’s Net Zero Upgrade Across Scotland

We proudly support Scottish and Southern Electricity Networks (SSEN) in their net zero infrastructure upgrade projects. Our AVR systems are:

Custom-built to meet SP-NET-SST-510 standards
Housed in modified, transportable containers
Designed for resilience, rapid deployment, and operational safety

Tailored Enclosure Solutions

Bespoke Design

Transportable Units

Thermal Management

From concept to commissioning, our team works closely with you at every stage to design and deliver custom enclosure systems that meet your exact technical, environmental, and regulatory requirements. Whether for compact urban sites or remote, rugged locations, we ensure each solution is engineered for efficiency, durability, and full conformity with industry standards.

Speak to our team

Advanced Thermal Management for Demanding Grid Applications

The Claude Lyons AVR (Automatic Voltage Regulator) is engineered for high-performance grid environments, with a strong emphasis on thermal efficiency and modular design.

Intelligent Cooling Options for Every Environment

Effective thermal management is critical to the reliability and longevity of voltage regulation systems, which need to be protected from extreme climate conditions and thermal shock. That’s why our AVR enclosures are designed with a multi-layered strategy, tailored to meet diverse operational demands:

Natural Convection Cooling

Where possible, natural convection is the preferred method when it comes to temperature control. Our specially modified containers feature engineered venting systems that promote passive airflow. This natural cooling method:

Reduces energy consumption
Minimises mechanical wear
Extends component life and increases service intervals

PLC-Controlled Thermal Management

Where natural convection is not sufficient, our systems incorporate air vents and high-efficiency fans to enhance airflow and maintain stable internal conditions.

At the heart of our thermal management is a PLC-governed control system that intelligently manages:

Servo-activated ventilation panels that open for passive airflow when conditions allow
Sensor-driven multi-stage fans that respond intelligently to real-time thermal demands.

This dynamic approach ensures optimal thermal management performance while minimising unnecessary energy use.

HVAC Integration

For projects that fall outside the scope of the 510 standard, we offer a range of tailored HVAC solutions to meet specific customer requirements.

Designed for Compliance, Built for Performance

Designed to meet SP-NET-SST-510, ensuring seamless integration with SSEN infrastructure

Ideal for both existing infrastructure upgrades and new site rollouts

Housed in customised, transportable enclosures for rapid deployment and site flexibility

Want to learn more?

Let’s discuss how AVR Grid Solutions can support your voltage regulation goals.
Complete the below form to schedule a consultation or request a technical specification pack.

ABOUT US

Claude Lyons, a UK brand established in 1918, has been a pioneer in voltage and power control, making significant advancements in energy saving and harmonic mitigation, and is globally recognised for its voltage stabilisers, power conditioning and uninterruptible power supplies (UPS). In 2016, Allendale Group Ltd acquired Claude Lyons’ trademarks, product designs, and intellectual property, continuing the legacy of innovation and commitment to high-quality products.