The P24xM Series offers flexible and redundant communications options, simplifying device integration into SCADA or DCS systems.

Two communication ports are standard - a rear port providing remote communications and a front port for local operators. The front USB port allows the programming of settings, configuration of the programmable scheme logic, extraction and viewing of event, disturbance and fault records, viewing of measurements and the instigation of control functions.

The P24xM series supports the following advanced communication protocols:

• Courier / K-Bus
• Modbus
• IEC 60870-5-103
• DNP 3.0 (RS485 serial or Ethernet)
• IEC 61850 (100 Mbit/s Ethernet)

IEC 61850 or DNP 3.0 over Ethernet are available when the optional Ethernet port is ordered in the 30TE and 40TE models. Redundant Ethernet protocol PRP, HSR and RSTP are also available in dual RJ45 or dual fiber. The copper physical link option uses RJ45 connectors, the fiber option uses LC connectors. IEC 61850 offers high-speed data exchange, peer-to-peer communication, reporting, disturbance record extraction and time synchronization. To help smooth transition from the existing protocol to the IEC 61850 protocol, the P40 Agile relay had been designed to provide concurrent Courier, Modbus or DNP3 on the RS485 while provide IEC 61850 over Ethernet port.

• Configuration file creation and management, following the substation topology
• Ethernet and IEC 61850 configuration, including SCL import and export
• Programmable logic, menu text and IDMT curve profiles
• Setting conversion to the new P40 Agile IEDs.
• Events and disturbance record extraction and viewing
• Embedded product selector
• Full successor to Micom S1
• Zero or minimal training to move from S1 Studio to S1 Agile

S1 Agile is the truly universal IED engineering toolsuite. No-longer are separate tools required for redundant Ethernet configuration, scheme operational dashboards, programmable curve profiles or automatic disturbance record extraction – all applications are embedded.

• Space-saving 4U height and 20TE (4"), 30TE (6") or 40TE (8") case sizes
• A front USB port and a rear RS485 port
• Power-up diagnostics and continuous self-monitoring
• Wide choice of opto-isolated binary inputs and output relays
• N/O (form A) and N/C (form B) watchdog contacts
• Field upgradeable to change the relay model avoiding costly hardware change via firmware upgrade

The front-panel interface allows direct IED interaction. . Integrated user function keys and tri-color programmable LEDs provide a cost-effective solution for control and annunciation.

The MM300 Enhanced is a digital motor protection and control system, designed for Low Voltage motor applications. Flexible and powerful, the MM300 Enhanced’s protection can be scaled to the specific requirements of your system.

Functional block diagram

ANSI Device Numbers & Functions

Key Features

• Metering - current, voltage, power, energy, frequency, power factor, RTD, Thermistor
• Oscillography – analog values at 32 samples/cycle and digital states
• Event Recorder - Up to 1024 time tagged events with 1ms resolution
• Fault recorder (up to 5)
• Motor Start records
• Last Trip data
• Data logger
• Advanced Motor Health report
• Advanced Device Health diagnostics

Monitoring & Metering

The MM300 Enhanced includes high accuracy metering for all AC signals, voltage, current, power metering, and temperature all available options. Current and voltage parameters are available as total RMS magnitude and angle

The MM300 Enhanced provides motor start recording in COMTRADE file format. The recording includes thermal profile, phase and ground currents & voltages, current unbalance, real, reactive, and apparent power, frequency, and motor status.

The MM300 Enhanced’s powerful I/O and programmable FlexLogic options offer advanced automation control, reducing the need for additional programmable controllers or discrete control relays.

EnerVista Flex Toolsuite

The EnerVista toolsuite provides all the tools to monitor the status of the protected asset, maintain the relay, and integrate information measured by the MM300 Enhanced into DCS or SCADA monitoring systems. Convenient COMTRADE and Sequence of Events viewers are an integral part included with every MM300 Enhanced to carry out postmortem event analysis to ensure proper protection system operation.

The MM300 Enhanced delivers a host of cybersecurity features that help operators to comply with NIS and NERC CIP guidelines, or other security regulations.

• Authentication/authorization/accounting server support (AAA - Radius)
• Role Based Access Control (RBAC)
• Non-erasable cyber event recorder (Syslog for SEM)

The MM300 is a digital motor protection and control system, designed for Low Voltage motor applications. Flexible and powerful, the MM300’s protection can be scaled to the specific requirements of your system. Manufacturing for the MM300 has been Discontinued. Please contact GE Vernova for availability. As an alternative, please refer to MM300 Enhanced.

• Enhanced Thermal Modeling
• Mechanical Jam / Stalled Rotor
• Undercurrent
• Underpower
• Acceleration Time
• Current Unbalance
• Ground Fault
• Sensitive Ground Fault
• Phase Overvoltage / Undervoltage
• Auxiliary Undervoltage
• Phase Reversal
• VT Fuse Failure
• Thermistor RTD
• Overtemperature

The MM300 includes high accuracy metering for all AC signals. Voltage, current, power metering, and temperature all available options. Current and voltage parameters are available as total RMS magnitude and angle.

Key Features

• Metering - current, voltage, power, energy, frequency, RTD, Thermistor
• Oscillography – analog values at 32 samples/cycle and digital states
• Event Recorder - Up to 256 time tagged events with 1ms res
• Advanced device health diagnostics

The MM300’s powerful I/O and programmable FlexLogic options offer advanced automation control, reducing the need for additional programmable controllers or discrete control relays.

The EnerVista™ Suite is an industry-leading set of software programs that simplifies every aspect of using the MM300. The EnerVista™ suite provides all the tools to monitor the status of the protected asset, maintain the relay, and integrate information measured by the MM300 into DCS or SCADA monitoring systems. Convenient COMTRADE and Sequence of Events viewers are an integral part of the EnerVista Setup software included with every MM300, to carry out postmortem event analysis to ensure proper protection system operation. 

Learn More

• Comprehensive metering
• Programmable oscillography up to 32 samples per cycle and digital states
• SNTP or IRIG-B clock synchronization
• 4X20 character LCD display
• Control panel with 12 LED indicators
• Motor health and switchgear diagnostics including breaker monitoring, CT/VT and close/trip coil supervision
• Relay health diagnostics

Power System Troubleshooting

Analyze power system disturbances with transient fault recorder and event records

• Time Synchronization and IRIG-B:

  An IRIG-B input is provided in the 339 to allow time synchronization using a GPS clock over a wide area. The 339 IRIG-B supports both AM and DC time synchronization, with an auto detect feature that that eliminates the need for configuration.

• Temperature Monitoring: 

  The 339 continually monitors ambient temperature around the relay and alarms when device is exposed to extreme temperatures.

• Advanced Device Health Diagnostic: 

  The 339 performs comprehensive device health diagnostic tests during startup and continuously at runtime to test major functions and critical hardware. These diagnostic tests monitor for conditions that could impact system reliability.

• Start/stop history
• Comprehensive trip details
• Learned acceleration time and starting current
• Many other motor health details

• Front USB and rear serial, Ethernet and Fiber ports
• Multiple Protocols: IEC 61850, MODBUS TCP/IP, MODBUS RTU, DNP 3.0,IEC60870-5-104, IEC60870-5-103

The EnerVista suite is an industry leading set of software programs that simplifies every aspect of using the 339 relay. The EnerVista suite provides all the tools to monitor the status of the protected asset, maintain the relay, and integrate the information measured into DCS or SCADA monitoring systems. Convenient COMTRADE and sequence of event viewers are an integral part of the 339 set up software and are included to ensure proper protection and system. 
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Feeder protection settings in one easy step

Access Control

Multilin devices and relays are designed with simple but powerful security to enable reliability and compliance for virtually any project or implementation. Password security is an optional feature of the 3 Series which can be setup using the SR3 EnerVista Setup software. The password system has been designed to facilitate a hierarchy for centralized management. This is accomplished through a Master level access password which can be used for resetting lower level access passwords and higher level privileged operations.

Auditing and Reporting

With the Security Audit Trail reporting feature, available in GE Vernova’s ViewPoint Monitoring software, operators are able to obtain Event logging reports of key activities such as configuration changes. These pre-formatted reports can be used to help ensure device and protection system integrity and perform forensic auditing of activities and changes for compliance.

Inputs and Outputs

The 339 features the following inputs and outputs for monitoring and control of typical motor applications:

• 10 contact Inputs with programmable thresholds
• 7 Outputs (2 Form A, 5 Form C) as standard and 4 Outputs (1 Form A, 3 Form C) when internal RTD option is selected
• 5 Form C output relays

Drawout & Non-Drawout Construction

The 339 is offered in both a drawout or a non-drawout construction. In the drawout case design the 339 simplifies installation and improves site safety as the need to open switchgear doors or rewire the device after testing is eliminated.

The 339 protection relay chassis used with a draw out relay is available separately, for use as a partial replacement or in test environments. The draw out relay with no chassis is also available to order as a spare unit.

Application Flexibility & Ease of Wiring 

Removable terminals ease wiring and in-system testing or troubleshooting.

Optional RTD

Reduce wiring via remote RTD’s using the RMIO module and support for 3 internal RTD

Traditionally, retrofitting or upgrading an existing relay has been a challenging and time consuming task often requiring re-engineering, panel modifications and re-wiring. Similar features and form factor of some models of MII family devices allow users to replace their existing relays with 3 Series relays with enhanced protection and control features and advanced communications.

The SR3 EnerVista Setup software allows users to create new setting files based on existing MIFII and MIVII setting files and can be uploaded to a 350 relay with a compatible model number. Retrofit is smooth and simplified with minor wiring or switchgear modifications.