Bently Nevada 369-HI-R-M-0-0-0-E Motor Protection Relay

Bently Nevada 369-HI-R-M-0-0-0-E is a multi-functional motor protection relay from the 369 series. It collects current and voltage signals from CT and PT sensors to realize comprehensive protection, measurement and monitoring for medium and low voltage industrial motors.

This relay supports Modbus communication, equipped with LCD display and local operation keys. It records fault events and waveform data for post-fault analysis. As aftermarket spare parts, it is widely used for maintenance, replacement and retrofit of motor protection systems in power, chemical and mining industries.

Main Specifications

1. Brand: Bently Nevada; Model: 369-HI-R-M-0-0-0-E; Type: Motor Protection Relay
2. Compatible System: Medium / low voltage motor, CT/PT sensors, power distribution cabinet, DCS/SCADA monitoring system
3. Core Functions: Multi-type motor protection, electrical parameter measurement, fault waveform recording, event log, relay trip & alarm, serial communication
4. Port Resource: CT/PT analog input, trip/alarm relay output, Modbus communication port, front LCD and keypad
5. Supported Feature: Built-in fault recorder, panel mounting, configurable protection logic, wide operating temperature, industrial EMC protection
6. Hardware Feature: Panel-mounted protection relay, integrated display and operation keys, passive cooling
7. Supply Status: Aftermarket spare part for industrial motor protection system maintenance and component replacement

Core Functions

1. Monitor three-phase current, voltage and power data of the motor, execute multiple protection functions including overload, phase imbalance, overcurrent and ground fault.
2. When motor working condition exceeds the set threshold, trigger trip relay output to cut off the motor power supply and protect the winding from burnout damage.
3. Integrated fault waveform recording and event log function, store fault data and time stamp for engineers to analyze root cause of motor abnormal trip.
4. Modbus communication interface connects to upper DCS or SCADA system to upload real-time motor operating data, alarm and fault information remotely.
5. Front LCD screen and keypad support on-site parameter configuration, real-time data check and fault code reading during commissioning and daily maintenance.
6. Standard panel cutout size, easy to install into motor control cabinet and replace old protection relays for automation system upgrade projects.

Application Scenarios

1. Motor protection monitoring unit for medium and low voltage motors used in power plants, chemical plants, water treatment and mining industries.
2. Fault relay replacement and routine maintenance of existing Bently Nevada 369 series motor control cabinets.
3. Motor protection system hardware upgrading and technical transformation for aging legacy industrial power distribution systems.
4. Emergency swap for relay failure of critical motor equipment requiring waveform recording and remote communication monitoring.
5. Spare-parts stocking for electrical maintenance teams supporting Bently Nevada 369 motor protection series products.
6. Aftermarket spare supply for motor control cabinet overhaul and technical-service projects of heavy industrial facilities.

FAQ

1. Q: Can Bently Nevada 369-HI-R-M-0-0-0-E relay work independently without CT, PT and circuit breaker trip circuit?
   A: It requires CT/PT signal input and matched trip circuit breaker, cannot run as standalone hardware.
2. Q: What are typical relay failure symptoms?
   A: No electrical measurement reading, false tripping, communication disconnection, fault waveform cannot be recorded.
3. Q: How to complete commissioning and diagnosis?
   A: Verify CT/PT wiring and power supply; configure protection setpoints, test alarm & trip output and check Modbus communication connection.