MSR-HD MV Protection and Control

Advanced Protection, Monitoring, and Motor Management for Medium Voltage Motors

The MSR-HD Motor Protection and Control Relay from IGEL Electric provides a comprehensive solution for protecting, monitoring, and controlling medium voltage motors in critical industrial applications. Specifically designed for three-phase induction motors, the MSR-HD combines advanced protection functions, real-time monitoring, and intelligent motor management to maximize equipment reliability and system availability.

By continuously monitoring electrical and thermal operating conditions, the MSR-HD helps identify abnormal conditions before they result in motor damage, unplanned downtime, or costly process interruptions.

Comprehensive Protection for Critical Motor Assets

Medium voltage motors are often among the most valuable assets in an industrial facility. The MSR-HD safeguards these critical investments through a wide range of protection functions designed to detect electrical faults, abnormal operating conditions, and thermal overload situations.

The relay helps protect motors from power supply disturbances, motor and wiring faults, earth faults, excessive thermal loading, and operational errors that can impact equipment life and process reliability.

Advanced Thermal Modeling and Temperature Monitoring

Accurate thermal protection is essential for ensuring the safe operation of motors operating near their performance limits. The MSR-HD incorporates advanced thermal motor modeling to continuously calculate motor thermal capacity and operating conditions.

To further enhance protection, the relay supports up to ten RTD or thermistor temperature inputs, enabling direct monitoring of motor windings, bearings, and other critical components.

This combination of thermal modeling and temperature sensing provides highly accurate motor protection while supporting predictive maintenance strategies.

High-Speed True RMS Measurement

The MSR-HD measures true RMS voltages and currents using a high-speed 0.5 ms sampling rate. This ensures accurate monitoring under all operating conditions, including installations utilizing electronic motor control equipment such as soft starters and other power electronic devices.

The relay continuously monitors:

• Three-phase voltages
• Three-phase currents
• Earth fault currents
• Motor and bearing temperatures
• Analog process signals
• Motor operating status and conditions

These comprehensive monitoring capabilities provide valuable insight into motor performance and system health.

Flexible Integration for Modern Industrial Systems

Designed for seamless integration into modern automation and control systems, the MSR-HD supports four analog inputs and four programmable discrete outputs, allowing users to customize functionality according to specific application requirements.

Its flexible architecture makes it ideal for complex industrial facilities where centralized motor protection, monitoring, and control are essential.

Improve Reliability and Reduce Downtime

Whether protecting motors in mining operations, water and wastewater facilities, power generation plants, marine applications, or process industries, the MSR-HD delivers the advanced functionality required for critical motor protection.

By combining intelligent protection, advanced monitoring, and powerful control capabilities, the MSR-HD helps increase equipment availability, reduce maintenance costs, and improve long-term operational reliability.