GE 369-HI-R-M-F-P1-0-E Multilin Relay

The GE Multilin 369-HI-R-M-F-P1-0-E, also cataloged as the 369-HI-R-M-F-P1-0-E Motor Protection Relay, serves as the primary 369 Motor Protection Relay utilized to execute comprehensive motor monitoring, thermal tracking, and high-speed network communication across industrial control and power distribution platforms.

Suffix Breakdown & Model Matrix

The 369 series utilizes explicit alphanumeric codes within its ordering matrix to define the integrated hardware options and functionality block baseline:

• 369: Core basic unit designator for the Motor Protection/Management Relay series.
• HI: Universal high-voltage control power supply block (50-300 VDC / 60-265 VAC).
• R: Optional 12 RTD inputs hardware module built directly into the chassis.
• M: Optional full electrical metering package module enabled.
• F: Optional Fiber Optic Port hardware installed.
• P1: Optional Profibus-DPV1 network protocol interface board equipped.
• 0: Standard assembly; no harsh environment conformal coating option applied.
• E: Enhanced diagnostics functionality equipped with an enhanced faceplate.

Hardware Specifications

Industrial Control & Power System Specifications

• Backplane Bus Communication Velocity and Density Scaling The relay aggregates analog sensory parameters through its 12 built-in RTD channels and integrated metering package concurrently. It converts physical stator temperatures, line voltages, and phase currents into digital registers, executing local protection state calculations without introducing latency into the downstream programmable logic controller (PLC) or supervisory network.
• Profinet / EtherNet/IP Deterministic Networks and Firmware Flash Compatibility The system integrates a dedicated Profibus-DPV1 network board alongside standard serial options, supporting cyclic and acyclic data exchange loops with master control nodes. The internal processing layer maps power factor, power consumption (kW/kVA), and thermal capacity variables directly onto network telegrams, ensuring deterministic output relay contact execution under severe overload conditions.

Frequently Asked Questions

Q: What specific data variables are added to the system registers by the "M" metering package suffix?

A: The "M" option installs the hardware instrumentation components required to calculate three-phase electrical power parameters. It monitors real-time bus voltage, active/reactive/apparent power metrics (kW/kVar/kVA), frequency variations, and power factor variables alongside the standard phase current protection functions.

Q: How does the "P1" Profibus-DPV1 interface handle safety-critical data communications compared to standard Modbus serial connections?

A: The Profibus-DPV1 interface supports high-speed cyclic data transmission for real-time motor variables, while enabling independent acyclic communication channels. This dual-channel design allows engineering personnel to read advanced diagnostic trends and change parameter profiles over the network without impeding active real-time trip status loops.

Field Installation Guidelines

• Chassis Alignment, Drawout Seating, and Enclosure Mounting Cut out the panel door to match the vertical layout of the 369 drawout case. Guide the main relay case straight through the opening until the flange seats flush against the panel face, then tighten the rear mounting bracket clamps to lock the assembly against heavy structural switchgear vibrations.
• Signal Routing, Optical Termination, and Shield Grounding Blocks Route the low-voltage RTD inputs and Profibus data links through dedicated grounded wireways separate from heavy three-phase motor leads. Terminate the fiber optic connections cleanly according to factory bend radius constraints, and land all copper shielded twisted-pair drain wires directly at the central protective earth ground bus terminal to suppress induced electromagnetic interference.