Protection Relays
Advanced relay protection solutions engineered for safety, reliability and performance across critical energy applications.
Delivering Proven Protection in High-Risk Environments
When safety and system integrity are critical, CSE W Arthur Fisher delivers advanced protection solutions designed to safeguard personnel and preserve valuable assets. Our protection relays offer reliable monitoring, control and fault response across a wide range of applications—including utilities, industrial facilities and both conventional and renewable generation.
Engineered for high-risk environments, our solutions provide the confidence and assurance needed to maintain safe, stable operations.
Applications
Generator Protection
Ensure safe and efficient operation of utility and renewable generators with fast-acting protection systems. Benefit from improved synchronisation, automated load shedding and extended asset life.
Transformer Protection
Protect critical transformer assets with intelligent monitoring and control. Reduce downtime, extend service life and optimise return on investment through proactive fault detection and maintenance.
Line Protection
Maintain secure and stable transmission with rapid fault location and isolation. Scalable solutions support both overhead and underground networks, improving system reliability and reducing outage risk.
Bus Protection
Limit damage and stabilise power systems with high-speed busbar protection. Advanced relays ensure secure operation across diverse configurations, enhancing overall network resilience.
Feeder Protection
Detect and isolate faults—including arc flashes and cable splice issues—before they escalate. Programmable systems improve safety, reduce equipment damage and support continuous operation.
Motor Protection
Maximise uptime and protect motors from thermal stress and electrical faults. Advanced modelling and differential protection improve process stability and extend equipment lifespan.
Integrating proven technology
CSE W Arthur Fisher partners with GE Vernova to deliver a wide range of protection relays designed for critical applications across power generation, transmission, distribution and industrial operations. These solutions combine advanced functionality with proven reliability, helping teams maintain safe, efficient and resilient energy systems across New Zealand.
Technologies
GE Vernova Multilin Universal Relay
Modular protection and control platform with advanced I/O, metering and high-speed communications.
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GE Vernova Multilin Hardfiber System
Fibre-based process bus system replacing copper wiring for efficient protection relay interfacing.
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GE Vernova Merging Unit MU320E
Process interface unit with analogue and binary I/O for full switchyard digital modelling.
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GE Vernova Merging Unit MU360
Process interface unit enabling switchyard modelling, control and digitalisation with flexible I/O architecture.
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GE Vernova Auxiliary Relays
Range of relays for tripping, locking out, annunciation and multicontact switching applications.
View MoreDelivering tailored protection solutions
As GE Vernova’s New Zealand Channel Partner, CSE W Arthur Fisher specialises in delivering electrical, automation, control and communications solutions that meet the demands of complex and high-risk projects. Our protection systems are designed to perform reliably across a wide range of applications, ensuring safety, compliance and operational efficiency.
We are committed to supporting our customers throughout the entire lifecycle of their systems. Our in-house engineers and technical specialists provide expert service and support, including on-site audits, testing, commissioning and preventative maintenance. We also offer repair services and access to genuine spare parts to keep systems operating at peak performance.
This comprehensive approach ensures your protection infrastructure remains safe, efficient and aligned with evolving operational requirements.