Siemens SIRIUS 3RF Series User Manual

Table of contents
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
17
8 SIRIUS 3RR2 current monitoring relays ................................................................................................ 683
8.1 Standards...................................................................................................................................683
8.1.1
Standards
...................................................................................................................................683
8.2 Produc
t description ....................................................................................................................684
8.2.1
Introduc
tion ................................................................................................................................684
8.2.2 Vers
ions .....................................................................................................................................685
8.2.3 Applic
ations................................................................................................................................685
8.2.4 The adv
antages of current monitoring relays ............................................................................686
8.2.5 3RR21
4.-.A.30 Basic analog setting current monitoring relay...................................................687
8.2.6 3RR22
4.-.F.30 Standard digital setting current monitoring relay...............................................688
8.3
Produc
t combinations ................................................................................................................689
8.4
Func
tions....................................................................................................................................690
8.4.1 Func
tions and parameters .........................................................................................................690
8.4.2 Functio
n charts for Basic analog setting current monitoring relay.............................................692
8.4.3 Functio
n charts for Standard digital setting current monitoring relay ........................................693
8.5 Configuration
..............................................................................................................................695
8.5.1
Current monitoring
relay application areas ................................................................................695
8.5.2 Fault detec
tion ...........................................................................................................................695
8.5.2.1 Wear detec
tion...........................................................................................................................696
8.5.2.2 Process
monitoring ....................................................................................................................696
8.5.2.3 Ov
erload detection.....................................................................................................................696
8.5.2.4 Detection of load shedding
........................................................................................................696
8.5.2.5 Cabl
e break and phase failure...................................................................................................697
8.5.2.6 Rotating field detec
tion with motors...........................................................................................697
8.5.2.7 Motor p
rotection in the case of special applications ..................................................................697
8.5.3 Applic
ation environment.............................................................................................................698
8.6 Mounting
....................................................................................................................................699
8.6.1 Mounti
ng options........................................................................................................................699
8.6.2 Minimum cl
earances and mounting positions............................................................................699
8.6.3 Mounting/Disassembl
y...............................................................................................................699
8.7 Connec
tion.................................................................................................................................702
8.7.1
3RR21 Basic
analog setting current monitoring relay ...............................................................702
8.7.2 3RR22 Stand
ard digital setting current monitoring relay ...........................................................703
8.8 Operation
...................................................................................................................................704
8.8.1
3RR21 Basic
analog setting current monitoring relay ...............................................................704
8.8.1.1 Parameters
.................................................................................................................................704
8.8.1.2 Lower threshold v
alue................................................................................................................705
8.8.1.3 Upper threshold v
alue................................................................................................................706
8.8.1.4 ON-delay
time ............................................................................................................................707
8.8.1.5 Tripping delay
time.....................................................................................................................708
8.8.1.6 Memory
......................................................................................................................................709
8.8.1.7 Diagnos
tics with LED .................................................................................................................710
8.8.2 3RR22 Stand
ard digital setting current monitoring relay ...........................................................711
8.8.2.1 Parameters
.................................................................................................................................711
8.8.2.2 Switching menus (possi
ble settings are SET and RUN) ...........................................................713
8.8.2.3 Settings
in the "RUN" menu.......................................................................................................716
8.8.2.4 Settings
in the "SET" menu........................................................................................................718
8.8.2.5 Diagnos
tics in the "RUN" menu .................................................................................................727

Siemens SIRIUS 3RF Series Specifications

General

Brand	Siemens
Model	SIRIUS 3RF Series
Category	Industrial Equipment
Language	English