ABB Relion 620 Series

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4.3.7 Rack mounting the protection relay and test switch RTXP to a 19” equipment

frame ................................................................................................................................. 38

4.3.8 Rack mounting the protection relay in a combiflex 19" equipment frame (Type

RHGT 19" 4U variant C) .................................................................................................. 39

4.3.9 Mounting lens sensors for an arc protection system ...................................................42

5 Connecting...............................................................................................44

5.1 Required tools....................................................................................................................................... 44

5.2 Connecting wires ................................................................................................................................. 44

5.2.1 Connecting ring-lug type wires..........................................................................................44

5.3 Connecting protective earthing ........................................................................................................45

5.4 Connecting analog signals..................................................................................................................46

5.4.1 Connecting current and voltage inputs........................................................................... 46

5.4.2 Connecting current and voltage sensor signaling inputs............................................ 49

5.4.3 Connecting RTD and mA inputs......................................................................................... 52

5.4.4 Shielding RTD/mA instrument cables...............................................................................53

5.5 Connecting binary signals...................................................................................................................55

5.6 Connecting power supply....................................................................................................................57

5.7 Connecting communication................................................................................................................57

5.8 Energizing protection relay ................................................................................................................ 57

6 Removing, repairing and exchanging................................................... 59

6.1 Product lifecycle.................................................................................................................................... 59

6.2 Checking protection relay information............................................................................................ 59

6.3 Removing the protection relay ..........................................................................................................60

6.4 Sending protection relay for repair ..................................................................................................60

6.5 Exchanging protection relay ..............................................................................................................60

7 Technical data..........................................................................................62

7.1 Case and HMI display variants............................................................................................................63

7.1.1 Front side of the protection relay......................................................................................63

7.1.2 Rear side of the protection relay .......................................................................................63

7.2 Dimensions.............................................................................................................................................65

7.3 Degree of protection of flush-mounted protection relay.............................................................66

8 Accessories and ordering data..............................................................67

9 Glossary....................................................................................................68

Contents

620 series

Installation Manual