Generator Rotor Protection Relay: MRR1
رقم القطعة: CS-GENERATOR-ROTOR-PROTECTION-RELAY-MRR1
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رقم القطعة: CS-GENERATOR-ROTOR-PROTECTION-RELAY-MRR1
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Generator Rotor Protection Relay: MRR1
| Download | Download Brochure <!-- |
|---|---|
| Feature 1 | Detection of high impedance earth faults with a low frequency test voltage. |
| Feature 2 | Short circuit and overvoltage-proof measuring input for the earth fault protection |
| Feature 3 | Exciter current measurement galvanically isolated, measuring range 0-20A |
| Feature 4 | Display of insulation resistance and of the excitation current |
| Feature 5 | Excitation current over & undercurrent protection with independent settings for current and delay time |
| Feature 6 | Detection of diode failures by supervision of the ripple component of the excitation current |
| Feature 7 | Two-stage supervision of the rotor insulation resistance with independent settings for resistance and time delay |
| Feature 8 | Digital inputs for blocking and for remote reset |
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| Source URL | https://cselectric.co.in/products-solutions/protectionandmeasurementdevices/special-function-relay/generator-rotor-protection-relay-mrr1/ |
| C&S Taxonomy Path | products-solutions > protectionandmeasurementdevices > special-function-relay > generator-rotor-protection-relay-mrr1 |
| C&S Category | protectionandmeasurementdevices |
| Benefits | Multifunction Generator Rotor Protection Relay MRR1 provides comprehensive protection by integrating multiple functions into one device, which enhances system reliability, reduces downtime, and simplifies maintenance. Combination of several crucial protections in a single compact unit (MRR1 combines rotor earth fault, excitation over/undercurrent, and rotating diode failure protection). The relay prevents severe damage to the generator by detecting and isolating faults and abnormal conditions quickly (such as voltage fluctuations, overloads, and earth faults), thereby extending its operational life. The relay’s fast and selective tripping action ensures only the faulty section is isolated, minimising disruption to the rest of the system and enabling quick fault isolation. The device stores detailed information about fault events with date and time stamps, and may include disturbance recording. Integrating multiple functions into one device reduces the need for separate relays, saving panel space and potentially lowering installation and inventory costs. Modern C&S relays often include communication ports and other monitoring systems, allowing for remote operation and control. |
| Feature 9 | Programmable function of the blocking input |
| Feature 10 | Programmable assignment of protective functions to output relays |
| Feature 11 | Remote interfacing via RS-485 (optional) |
| Feature 12 | Introduction |
| Feature 13 | Benefits |
| Feature 14 | Contact Our Experts |
| Feature 15 | Download |
| Feature 16 | DC undercurrent relay |
| Feature 17 | Field relay |
| Feature 18 | Rectification failure relay |
| Feature 19 | Ground detector relay |
| Feature 20 | DC overcurrent relay |
| Feature 21 | Combination of several crucial protections in a single compact unit (MRR1 combines rotor earth fault, excitation over/undercurrent, and rotating diode failure protection). |
| Summary | FDC1 V5 relay offers numerical protection, fault logging, programmable voltage thresholds and LCD monitoring for DC systems. Explore specifications and configuration details. |
| Feature 22 | The relay prevents severe damage to the generator by detecting and isolating faults and abnormal conditions quickly (such as voltage fluctuations, overloads, and earth faults), thereby extending its operational life. |
| Feature 23 | The relay’s fast and selective tripping action ensures only the faulty section is isolated, minimising disruption to the rest of the system and enabling quick fault isolation. |
| C&S Subcategory | special-function-relay |
| Feature 24 | The device stores detailed information about fault events with date and time stamps, and may include disturbance recording. |
| Feature 25 | Integrating multiple functions into one device reduces the need for separate relays, saving panel space and potentially lowering installation and inventory costs. |
| Feature 26 | Modern C&S relays often include communication ports and other monitoring systems, allowing for remote operation and control. |
| Introduction | The generator rotor protection relay MRR1 combines rotor earth fault protection, excitation over- and under-current protection. Thus providing a powerful protection regarding the rotor of synchronous generators. DC undercurrent relay Field relay Rectification failure relay Ground detector relay DC overcurrent relay The rotor earth fault element detects high- and low-resistance earth faults of the rotor winding. It is equipped with two stages, one for alarm, one for trip. The protective functions are: Undercurrent, overcurrent and ripple detection for diode failure protection. Because of the combination of three protective functions in one device, the MRN2 is a very compact mains de-coupling device. |
| Generator Rotor Protection Relay: MRR1 | FEATURES Detection of high impedance earth faults with a low frequency test voltage. Short circuit and overvoltage-proof measuring input for the earth fault protection Exciter current measurement galvanically isolated, measuring range 0-20A Display of insulation resistance and of the excitation current Excitation current over & undercurrent protection with independent settings for current and delay time Detection of diode failures by supervision of the ripple component of the excitation current Two-stage supervision of the rotor insulation resistance with independent settings for resistance and time delay Digital inputs for blocking and for remote reset Programmable function of the blocking input Programmable assignment of protective functions to output relays Remote interfacing via RS-485 (optional) Introduction Benefits Contact Our Experts Download The generator rotor protection relay MRR1 combines rotor earth fault protection, excitation over- and under-current protection. Thus providing a powerful protection regarding the rotor of synchronous generators. DC undercurrent relay Field relay Rectification failure relay Ground detector relay DC overcurrent relay The rotor earth fault element detects high- and low-resistance earth faults of the rotor winding. It is equipped with two stages, one for alarm, one for trip. The protective functions are: Undercurrent, overcurrent and ripple detection for diode failure protection. Because of the combination of three protective functions in one device, the MRN2 is a very compact mains de-coupling device. Multifunction Generator Rotor Protection Relay MRR1 provides comprehensive protection by integrating multiple functions into one device, which enhances system reliability, reduces downtime, and simplifies maintenance. Combination of several crucial protections in a single compact unit (MRR1 combines rotor earth fault, excitation over/undercurrent, and rotating diode failure protection). The relay prevents severe damage to the generator by detecting and isolating faults and abnormal conditions quickly (such as voltage fluctuations, overloads, and earth faults), thereby extending its operational life. The relay’s fast and selective tripping action ensures only the faulty section is isolated, minimising disruption to the rest of the system and enabling quick fault isolation. The device stores detailed information about fault events with date and time stamps, and may include disturbance recording. Integrating multiple functions into one device reduces the need for separate relays, saving panel space and potentially lowering installation and inventory costs. Modern C&S relays often include communication ports and other monitoring systems, allowing for remote operation and control. <input type="hidden" name="_wpcf7cf_options" value="{"form_id":84938,"conditions":[],"settings":{"animation":"yes","animation_intime":200,"animation_outtime":200,"conditions_ui":"normal","notice_dismissed":false,"repeater_remove_button& |
| Datasheet URL | https://cselectric.co.in/wp-content/uploads/2025/11/MRR1-Generator-Rotor-Protection-Relay.pdf |