Motor protection REM601

REM601 is a dedicated motor relay designed for the protection and control of medium-voltage and low-voltage asynchronous motors in the manufacturing and process industry. The relay provides an optimized composition of protection, monitoring and control functionality in one unit, with the best performance usability in its class.

The relay’s stand­ard signal configuration can be altered from its local user interface (LHMI). The relay can be used with both circuit-breaker and contactor-controlled motor drives.

Besides the conventional current transformer interface based variant, the relay also supports a variant based on Rogowski current sensors’ analog interface. This helps to obtain a compact medium voltage switchgear equipment size reduc­tion with improved performance and standardization.

Scope

• Asynchronous motor protection

Product benefits

• Compact, flexible and simple to handle
• Speedy commissioning through selective test function for protection functions, binary signals and communication features
• Easily configurable binary inputs and outputs
• Extensive self-supervision of the relay hardware and software
• Enhanced safety with usage of sensors variant / detachable terminals with CT shorting facility
• Press fit mounting arrangement facilitates easy and fast installation
• Less number of variants, easy to stock
   

Product features

• Used for three-phase motors with conventional contactor or circuit-breaker controlled motor drives
• Thermal overload, short circuit, start-up supervision, negative-phase sequence, loss of phase, locked rotor during running, sensitive earth fault, loss of load and circuit breaker failure protection
• Preconfigured functionality facilitates easy and fast commissioning
• Universal power supply 24-240 V AC/DC
• Configurable binary inputs/outputs using local HMI or communication interface
• Site selectable CT selection (1 or 5A), Boolean logic and timers
• Site selectable Modbus RTU and IEC 60870-5-103 protocols
• Easy upload of fault recorded information like events, fault records and disturbance records from front USB port
  
   
  
  
   

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