GE MiCOM Agile P64x Family – Transformer Protection Relays


The GE MiCOM Agile platform of transformer protection relays helps preserve transformer service life and provides fast protection for transformer faults. The platform consists of three model variants that cover two and three-winding transformers (including auto-transformers), with up to five sets of 3-phase CT inputs, and offers high and low impedance restricted earth fault, and has integral asset management capability.

Available models:

  • P642 2 Winding transformer management IED
  • P643 3-End transformer management IED
  • P645 5-End transformer management IED

Features include:

  • High stability during external fault with heavy CT saturation due to transient bias technique
  • No slow-down of differential elements due to 2nd harmonic component in fault currents
  • Current transformer supervision operates with or without voltage inputs, fast enough to prevent any spurious tripping and alarm
  • 10 integrated function keys, tri-color LEDs, and graphical programmable logic permit the creation of comprehensive, tailored schemes

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Transformer Protection Relay

As the world continues to embrace technological advances in all facets of life and across all industries, the capabilities to reduce problematic power outages that lead to major costs and reactive expenses have become widely accessible throughout the energy market. At the forefront of independent system, integration is CSE Global, the parent company of CSE Uniserve. Based in Australia and serving the needs of our extensive customer base since 1978, CSE Uniserve have a wide range of solutions that encompass everything from transformer protection relay systems to asset monitoring and diagnostics. Power conversion, protection and automation and technical services are the core competencies that form the basis of what we do, and as such we are focused on servicing the following industries:

  • Mining
  • Oil and Gas
  • Water
  • Utilities and associated renewables
  • Heavy industry and manufacturing

For over 35 years we have worked toward cutting-edge, innovative solutions that exceed the expectations of our customers and in this time have assembled a team of world-class engineers and technicians to bolster and enhance our approaches to new processes and thereby offer unparalleled service to the respective markets.

At CSE Uniserve, we are firm believers in expanding the opportunities available to clients by looking beyond the traditional, tried and tested products available in hope of exploring the deployment of new and alternative technologies that offer increased and differential value.  Our agenda is always fuelled by finding and following best practices in terms of the solutions and service we provide, and in terms of our own company, we continually strive toward quality assurance in everything that we do.

The features of a transformer protection relay

One of the products we offer here at CSE Uniserve is the Solcon TPR-6, which accurately measures temperature increases in order to protect a transformer from possible damage that would result from a build-up in heat in the bearings and, or, windings. What’s more, a built-in self-test protects against operator faults and disconnected sensors.

This relay houses advanced microprocessor-based circuitry and two level protections for alarm and trip. The possibility to select between trip and trip fail-safe is another feature and it incorporates disconnected sensor protection. Inputs and outputs are programmable and the relay is easy to install and is simple to operate.

Invest now, save over time

Using transformer protection will lead to repair over catastrophic failure where properly monitored and controlled, which will also increase the lifetime potential for your transformers. The cost efficiencies and long-term savings caused by minimising outages and not having to replace equipment far outweigh any initial investment and have the knock-on effect of benefitting your corporate image in the eyes of your clients and stakeholders.

At CSE Uniserve, we are dedicated to providing comprehensive technical support expertise and lifetime service through dedicated in-house and on-site services for all our technologies. We offer the highest quality repair of products and quality maintenance, training, testing and commissioning, site audits and preventative maintenance and a customer support line that operates all day every day.

As such, we encourage you to engage us in your current endeavours and to work side-by-side with CSE Uniserve to find creative solutions that will deliver the results you expect and lead to a formidable partnership and industry best performance.

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    • GE’s P642, P643 and P645 preserves service life and offers fast protection for transformer faults. A transient bias technique has been included, enhancing relay stability and CT requirements. Hosted on an advanced IED platform, the P64x incorporates differential, REF, thermal, and overfluxing protection, plus backup protection for uncleared external faults.

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