Technical data

Protection Relay

Technical Reference Manual, General

REX 5211MRS751108-MUM

Issued: 27.06.2001

Version: H/29.09.2006

Contents

1. About this manual ...................................................................9

1.1. This manual ................................................................................9

1.2. Use of symbols ...........................................................................9

1.3. Related documents ...................................................................10

1.4. Document revisions ..................................................................10

2. Safety information .................................................................11

3. Introduction ...........................................................................13

3.1. General .....................................................................................13

3.2. Application ................................................................................14

3.3. Hardware versions ....................................................................16

4. Requirements ........................................................................17

5. Technical description ...........................................................19

5.1. Functional description ...............................................................19

5.1.1. Parametrization ..............................................................19

5.1.1.1. Local parametrization ...................................19

5.1.1.2. External parametrization ...............................19

5.1.1.3. Relay Setting Tool view ................................20

5.1.1.4. Graphical I/O Setting Tool ............................20

5.1.1.5. Factory settings ............................................21

5.1.2. Non-volatile memory ......................................................22

5.1.3. Real-time clock ...............................................................22

5.1.4. Auxiliary voltage .............................................................22

5.1.4.1. Power supply versions ..................................23

5.1.4.2. Low auxiliary voltage indication ....................23

5.1.5. Overtemperature indication ............................................23

5.1.6. Analog channels .............................................................24

5.1.6.1. Scaling the rated values of the protected

unit for analog channels ...............................24

5.1.6.2. Technical data of the measuring devices .....25

5.1.6.3. Calculated analog channels .........................27

5.1.6.4. Select Io ........................................................27

5.1.6.5. Rated frequency ...........................................27

5.1.7. Digital inputs ...................................................................27

5.1.7.1. Filtering of digital inputs ................................27

5.1.7.2. Inversion of digital inputs ..............................28

5.1.8. Outputs ...........................................................................28

5.1.8.1. High-speed power output (HSPO) ................28

5.1.8.2. Single-pole power outputs (PO) ...................29

5.1.8.3. Signalling outputs (SO) .................................30