Motor management relay
The SR469 motor protection system is a member of the SR series relays, providing protection, control, simplified configuration and advanced communication in a cost-effective, industry-leading extended structure. Designed specifically for medium-voltage motors, the 469 offers advanced protection, with customizable overload curves and single CT differential protection, enhancing flexibility. The 469 also uses a motor setting auto-configurator to provide simplified configuration, offering quick and easy motor parameter Settings. Coupled with advanced protection and diagnosis, 469 provides users with the flexibility of multiple communication protocols, allowing for integration into new and existing control networks.
Characteristics
Voltage-related overload curve, torque measurement and protection, rotor broken bar protection
The most advanced thermal model – multiple RTD input stator thermal protection
Minimize replacement time – pull-out construction
Complete asset monitoring – temperature, analog I/O, full measurement
Improve the uptime of auxiliary equipment – through I/O monitoring
Reduce troubleshooting time and maintenance costs – event reporting, waveform capture, data logger
The built-in simulation function simplifies testing and debugging
Access information economically and effectively – via standard RS232 and RS485 serial ports, as well as optional Ethernet and DeviceNet ports
Firmware and Settings can be upgraded on-site
Optional conformal coating exposure
Multilin™F650 is designed for the protection, control and automation of feeders or related applications. The Multilin F650 provides high-speed protection and control for feeder management and channel control applications, and is equipped with a large LCD and a single-line diagram. It can be used for channel monitoring and control in various feeder arrangements, including ring busbars, double circuit breakers or double circuit breakers and half circuit breakers.
The design features advanced communication options and detailed monitoring functions. The Multilin f650 offers advanced functions, including high-performance protection, extensive control functions and flexible configuration functions. The Multilin F650 can also be used in various applications instead of feeder protection and control.
Main advantages
Comprehensive and flexible protection and control devices suitable for feeder applications
Increase the system’s uptime and improve stability through load reduction and transfer schemes
Advanced automation functions for customizing protection and control solutions
The human-machine interface (HMI) is equipped with a graphic LCD, programmable buttons, and simple keys for selecting Settings menus and submenus
Reduce replacement time through a modular withdrawable structure
Reduce troubleshooting time and maintenance costs through IEEE 1588 (PTP), IRIG-B and SNTP time synchronization (configuring two different SNTP master stations), event reporting, waveform capture and data logger
Simplify system integration by supporting serial and Ethernet interfaces as well as multiple protocol communications
• Embedded IEC® 61850 protocol (and supports Version 2), IEC 60870-5-103/104, IEC 62439/PRP/HSR, IEEE 802.1D/RSTP
Common models and features of GE motor management relays:
The 469 series, such as SR469-P5-HI-A20-E, features overload, short circuit and phase loss protection functions. There are high and low range options for the power supply. The low range is 20 to 60V DC for DC and 20 to 48V AC for AC (48 to 62Hz). The high-range DC is 90 to 300V DC and the AC is 70 to 265V AC (48 to 62Hz). The phase current input of the CT primary is 1 to 5000A, and the CT secondary can be selected as 1A or 5A, which is suitable for various motor current monitoring scenarios.
369 series: For example, 369-HI-0-M-0-0, the rated control power supply is 50-300 VDC or 60-265 VAC. The 369-HI-R-0-0-0 has 12 selectable RTD inputs, which can be used for the protection and monitoring of three-phase motors and related systems, and can “learn” motor parameters to adapt to different applications.
169PLUS series: Such as 169PLUS-120N-125VDC, with basic set points for programming large motor systems, which users can adjust according to their needs. Equipped with auxiliary relay contacts, it can be used for active alarm or trip functions. It can also be connected to 6 resistance temperature detectors for monitoring the temperature of the stator motor, etc. It has an RS 422 serial port (Plus model).
269PLUS series: Like 269plUS-D /O-100P-125V, it adopts a 100-ohm platinum RTD, which can accurately measure the temperature and monitor the thermal status of the motor. The 269PLUS-D/O-261-100P-120 has functions such as pre-trip alarm warning and emergency restart capability. It also provides features such as multiple motor starts, overheating of stator windings and bearings, and a thermal model with RTD and negative sequence current feedback.
