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D.K. Moriarty

Copyright © D.K. Moriarty Ltd. 2026
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Our solutions

What we make

Purpose-engineered instrument transformers

Our current and voltage transformers range from established designs to bespoke configurations, developed around the electrical, mechanical and performance requirements of each application.

With decades of specialist knowledge behind us, we work closely with our customers to understand exactly what’s required, adapting existing designs or developing something more specific where needed. Every transformer is designed and manufactured at our facility in Colchester, giving us the flexibility to support individual requirements across a wide range of power and industrial applications.

Current transformers

Designed for protection, measurement and monitoring applications across the power industry, our current transformer range includes:

  • Ring type, wound primary and split-core current transformers
  • Class PX current transformers
  • Stadium-shaped CTs for metering and protection
  • Large bushing and outdoor bushing/slipover CTs
  • Core balance current transformers
  • Precision metering CTs, including classes 0.5, 0.2 and 0.1
  • Cast resin current transformers

Voltage transformers

Our voltage transformer solutions are designed for accurate, dependable measurement across a range of applications, including:

  • Cast resin voltage transformers
  • Multi-secondary voltage transformers for meter test stations
  • Bespoke configurations developed for specific equipment and applications
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Speak to our team

Whether you have a product enquiry, need support with an existing project or simply have a question, our team is here to help.

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