ABB REM 610 Product manual

REM 610
Motor Protection Relay
Technical Reference Manual

©Copyright 2005 ABB Oy, Distribution Automation, Vaasa, FINLAND
REM 610
1MRS 752263-MUM
Issued: 25.11.2003
Version: C/09.09.2005
We reserve the right to change data without prior notice.
Motor Protection Relay
Technical Reference Manual
Contents
1. Introduction ...............................................................................6
1.1. About this manual .........................................................................6
1.2. The use of the relay ......................................................................6
1.3. Features ........................................................................................6
1.4. Guarantee .....................................................................................8
1.5. Revision history .............................................................................8
2. Safety information .....................................................................9
3. Instructions ..............................................................................10
3.1. Application ...................................................................................10
3.2. Requirements ..............................................................................10
3.3. Configuration ...............................................................................10
4. Technical description .............................................................14
4.1. Functional description .................................................................14
4.1.1. Product functions .............................................................14
4.1.1.1. Schema of product functions ..............................14
4.1.1.2. Protection functions ............................................14
4.1.1.3. Inputs .................................................................15
4.1.1.4. Outputs ...............................................................15
4.1.1.5. Emergency start .................................................15
4.1.1.6. Restart inhibit .....................................................15
4.1.1.7. Motor start up .....................................................16
4.1.1.8. Rated current of the protected unit .....................16
4.1.1.9. Disturbance recorder ..........................................17
4.1.1.10.HMI ....................................................................17
4.1.1.11.Non-volatile memory ..........................................17
4.1.1.12.Self-supervision .................................................17
4.1.1.13.Time synchronization .........................................18
4.1.2. Measurements .................................................................19
4.1.3. Configuration ....................................................................20
4.1.4. Protection .........................................................................22
4.1.4.1. Block diagram ....................................................22
4.1.4.2. Thermal overload protection ..............................22
4.1.4.3. Start-up supervision ...........................................29
4.1.4.4. Short-circuit protection .......................................30
4.1.4.5. Undercurrent protection .....................................31
4.1.4.6. Earth-fault protection ..........................................31
4.1.4.7. Unbalance protection .........................................32

4
1MRS 752263-MUM
Motor Protection Relay
Technical Reference Manual
REM 610
4.1.4.8. Phase reversal protection .................................. 33
4.1.4.9. Cumulative start-up time counter .......................34
4.1.4.10.Circuit-breaker failure protection ........................34
4.1.4.11.Temperature protection (optional) ..................... 35
4.1.4.12.Settings .............................................................. 39
4.1.4.13.Technical data on protection functions .............. 50
4.1.5. Trip-circuit supervision ..................................................... 53
4.1.6. Indicator LEDs and operation indication messages ......... 55
4.1.7. Motor running time counter .............................................. 55
4.1.8. Monitoring of demand values .......................................... 56
4.1.9. Commissioning tests ........................................................ 56
4.1.10.Disturbance recorder ....................................................... 56
4.1.10.1.Function ............................................................. 56
4.1.10.2.Disturbance recorder data ................................. 57
4.1.10.3.Control and indication of disturbance recorder
status ................................................................. 58
4.1.10.4.Triggering .......................................................... 58
4.1.10.5.Settings and unloading ...................................... 58
4.1.10.6.Event code of the disturbance recorder ............. 58
4.1.11.Recorded data of the last events ..................................... 59
4.1.12.Communication ports ....................................................... 61
4.1.13.IEC 60870-5-103 remote communication protocol .......... 62
4.1.14.Modbus remote communication protocol ......................... 65
4.1.14.1.Protocol overview .............................................. 65
4.1.14.2.Profile of Modbus REM 610 ...............................66
4.1.15.SPA bus communication protocol parameters ................. 78
4.1.15.1.Event codes ....................................................... 92
4.1.16.Self-supervision (IRF) system .......................................... 96
4.1.16.1.Self-supervision of the RTD module .................. 97
4.1.17.Relay parameterization .................................................... 98
4.2. Design description ...................................................................... 98
4.2.1. Input/output connections ................................................. 98
4.2.2. Serial communication connections ................................ 103
4.2.3. Technical data .............................................................. 107
5. Setting calculations and application examples ................. 112
5.1. Setting calculations ................................................................... 112
5.1.1. Protected unit scaling factor ..........................................112
5.1.2. Thermal overload protection .......................................... 112
5.1.2.1. Selecting weighting factor p ............................. 113
5.1.2.2. Safe stall time for hot starts ............................. 115
5.1.2.3. Checking the set safe stall time for cold starts 118

1MRS 752263-MUM Motor protection Relay
Technical Reference Manual
REM 610
5
5.1.2.4. Checking the set safe stall time for a single
start ..................................................................119
5.1.2.5. Restart inhibit level, θi .......................................119
5.1.2.6. Prior alarm level, θa ..........................................119
5.1.2.7. Time constant multiplier, Kc ..............................119
5.1.3. Start-up supervision .......................................................119
5.1.3.1. Start-up supervision based on thermal stress
calculation ........................................................119
5.1.3.2. Checking the need for speed switch ................120
5.1.4. Cumulative start-up time counter ...................................120
5.1.5. Short-circuit protection ...................................................121
5.1.6. Unbalance and phase reversal protection .....................121
5.1.6.1. Selecting the start value for stage I2> ..............121
5.1.6.2. Selecting the time constant, K2 ........................121
5.1.6.3. Connection with two phase current
transformers .....................................................122
5.1.7. Earth-fault protection ......................................................122
5.1.7.1. Stabilizing virtual earth-fault currents ...............123
5.1.7.2. Increasing the sensitivity of the earth-fault
protection .........................................................123
5.1.8. Circuit-breaker failure protection ....................................123
5.1.9. Temperature protection (optional) ..................................123
5.2. Application examples ................................................................124
5.2.1. Protecting a circuit-breaker controlled motor .................124
5.2.2. Protecting a motor at an ambient temperature other
than 40°C .......................................................................125
5.2.3. Protecting a contactor controlled motor .........................126
5.2.4. Protecting non-rotating objects ......................................127
5.2.5. Earth-fault protection in an isolated or a compensated
network ..........................................................................127
5.2.6. Earth-fault protection in a solidly earthed network .........127
6. Ordering information ............................................................129
7. Revision history of REM 610 ................................................131
7.1. Revision identification ...............................................................131
7.2. Changes and additions to the earlier released revision A .........131
8. References .............................................................................132
9. Abbreviations ........................................................................133
10.Check lists .........................................................................135