Table Of Contents - ABB REU 523 Technical Reference Manual

1MRS 750942-MUM
Issued: 07.06.99
Version: A/16.11.99
Checked: H.S.
Approved: S-M.H.
We reserve the right to change data without prior notice.
ABB Automation
Combined Overvoltage and
Undervoltage Relay
Technical Reference Manual
Contents
1. Introduction ...............................................................................5
1.1. About this manual .........................................................................5
1.2. The use of the relay ......................................................................5
1.3. Features ........................................................................................5
1.4. Guarantee .....................................................................................6
2. Safety Information .....................................................................7
3. Instructions ................................................................................8
3.1. Application .....................................................................................8
3.2. Requirements ................................................................................8
3.3. Configuration .................................................................................9
4. Technical Description .............................................................10
4.1. Functional description .................................................................10
4.1.1. Product functions .............................................................10
4.1.1.1. Schema of product functions ..............................10
4.1.1.2. Overvoltage, undervoltage and positive-phase-
4.1.1.3. Inputs .................................................................11
4.1.1.4. Outputs ...............................................................11
4.1.1.5. Circuit-breaker failure protection ........................11
4.1.1.6. Disturbance recorder ..........................................11
4.1.1.7. MMI module .......................................................11
4.1.1.8. Self-supervision ..................................................11
4.1.2. Configuration ....................................................................12
4.1.3. Protection .........................................................................13
4.1.3.1. Block diagram ....................................................13
4.1.3.2. Overvoltage unit .................................................13
4.1.3.3. Undervoltage unit ...............................................14
4.1.3.4. Positive-phase-sequence protection ..................15
4.1.3.5. Time/voltage characteristics ...............................16
4.1.3.6. Settings ..............................................................19
4.1.3.7. Technical data of protection functions ................27
4.1.4. Monitoring ........................................................................28
4.1.5. Self-supervision (IRF) ......................................................29
4.1.6. I/O test .............................................................................29
4.1.7. Disturbance recorder .......................................................29
4.1.7.1. Function .............................................................29
4.1.7.2. Recorder data ....................................................30
sequence ............................................................10
REU 523
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