Functional Overview - ABB REM610 Product Manual

Motor Protection
REM610
Product version: C

2. Functional overview

Table 1. Functionality
Description
Protection
Three-phase thermal overload for motors
Motor startup based on thermal stress calculation
Three-phase definite-time overcurrent, low-set stage
Three-phase overcurrent, high-set stage
Inverse-time unbalance protection based on negative phase sequence
current
Phase reversal protection
Undercurrent (loss-of-load)
Non-directional earth fault, low-set stage
Cumulative startup time counter and restart inhibit function
Circuit-breaker failure
Temperature protection using RTD sensors or thermistors
Lockout relay function
Condition monitoring
Trip circuit supervision
Restart inhibit function
Measurement
Disturbance recorder
Residual current
Three-phase current
Thermal level
Negative phase-sequence current
Temperature measurements via RTD inputs
● = Included o = Optional
1) Mutually exlusive functions
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1MRS756304 C
Issued: 30.10.2009
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ABB