Enhance System Protection and Reliability with Expert Relay Configuration and Testing.
At Sigma Power Services (SPS), we specialise in configuring and testing advanced microcontroller-based protection and control relays from industry-leading manufacturers including SEL, ABB, SIEMENS, MICOM, General Electric, Schneider, ZIV, and more. Our extensive expertise ensures that your electrical systems are safeguarded against faults, minimising downtime and protecting critical infrastructure.
Protection relays are essential for maintaining the stability and safety of electrical systems. Our skilled engineers bring years of experience to the table, delivering tailored solutions that optimise performance and ensure compliance with operational standards.
Comprehensive Protection Relay Services
Our services cover a wide array of protection and control relay applications, providing end-to-end solutions for power generation, transmission, and distribution systems.
Key Protection Relay Services Include:
Advanced Distance Protection – Ensures rapid fault detection and isolation to maintain line integrity
Line Differential Protection – Provides accurate fault discrimination between in-zone and out-of-zone disturbances
Low and High Impedance Busbar Protection – Safeguards against faults within busbar systems, minimising the risk of outages
Transformer Differential Protection – Detects internal transformer faults, preventing costly damage and ensuring longevity
Feeder Protection – Secures distribution networks against overloads and short circuits
Frequency/Voltage Protection – Maintains system stability by preventing frequency and voltage anomalies
Overcurrent and Earth Fault Protection – Offers comprehensive protection against phase and ground faults
Advanced Control Systems & Digital Communication
In addition to protection relay services, Sigma Power excels in configuring and testing control systems and digital communication protocols, ensuring seamless integration and enhanced operational control.
Control System Services Include:
Bay Control Units – Centralised control and monitoring of substation bays
ATS Controllers and High-Speed Transfer Switches – Ensures smooth transfer of loads during power source transitions
Capacitor Bank Controllers – Optimises power factor correction and voltage regulation
Auto-reclosure Systems – Rapidly restores power after transient faults, improving system resilience
Digital Communication Expertise:
IEC 61850 GOOSE Configuration & Testing – Facilitates high-speed peer-to-peer communication for critical protection functions
Client/Server Configuration & Testing (IEC 61850) – Enables seamless integration of intelligent electronic devices (IEDs)
Modbus/Profibus Configuration & Testing – Ensures efficient communication between field devices and control systems
The Sigma Power Advantage
Unmatched Expertise
Our engineers are proficient in relays from all major manufacturers, ensuring precise configuration and testing
Reduced Downtime
Accurate relay configuration prevents false trips and unnecessary outages
Future-Ready System
We stay ahead of industry advancements to ensure your protection systems are ready for evolving challenges
Protect Your Infrastructure with Sigma Power
Sigma Power Services is committed to delivering industry-leading protection and control relay solutions that enhance system reliability and safeguard critical assets. Trust our expertise to ensure your systems perform at their best.
Contact us today to learn how our advanced relay services can optimise your electrical protection systems and drive operational excellence.
Protection Relays FAQ’s
Protection relays are critical for safeguarding electrical systems by detecting faults and triggering protective actions. They ensure smooth operations, prevent equipment damage, and enhance system reliability.
Sigma Power specialises in a wide range of protection relays, including Advanced Distance Protection, Line Differential Protection, Busbar Protection (Low and High Impedance), Transformer Differential Protection, Auto-reclosure, Generator Protection, Motor Protection, and many others.
Sigma Power provides expertise in IEC61850 GOOSE configurations, Client/Server setups using IEC61850, and Modbus/Profibus configuration and testing. These capabilities ensure seamless integration and communication within advanced digital protection systems.
Our Values
Driven by the principle of ‘Delivering Value. Always!’ our core values serve as a foundation for company culture and guide decision making, and interactions with customers, employees and partners across the group.
People
Safety
Exceptional Skill
Exemplary Service
Care
Common Systems