Siemens SIPROTEC 7XR81 User Manual

2.3.2 Dimensions................................................................................................................. 29
2.3.2.1 Panel Surface Mounting......................................................................................... 29
2.3.3 Connection Examples.................................................................................................. 29
2.4 Technical Data.................................................................................................................. 32
2.4.1 Load Capability of the Capacitive Coupling Circuit........................................................ 32
2.4.2 Weight........................................................................................................................ 32
2.5 Electrical Tests.................................................................................................................. 33
2.5.1 Standards.................................................................................................................... 33
2.5.2 Installation Requirements............................................................................................ 33
2.5.3 Insulation and Safety Tests.......................................................................................... 33
2.5.4 EMC Immunity Tests (Type Tests, Test under Mounting Conditions)..............................33
2.6 Mechanical Tests...............................................................................................................34
2.7 Environmental Conditions................................................................................................. 35
2.7.1 Temperatures.............................................................................................................. 35
2.7.2 Humidity..................................................................................................................... 35
2.7.3 Other Environmental Information................................................................................ 35
2.8 Protection Degree according to IEC 60529.........................................................................36
3 7XR86 Voltage Divider (5:1, 5:2)................................................................................................................ 37
3.1 Block Diagram...................................................................................................................38
3.2 Connection Notes............................................................................................................. 39
3.3 Construction Properties.....................................................................................................40
3.3.1 Mechanical Structure...................................................................................................40
3.3.2 Dimensions................................................................................................................. 40
3.3.2.1 Panel Surface Mounting......................................................................................... 40
3.4 Technical Data.................................................................................................................. 41
3.4.1 Load Capability of the Voltage Divider..........................................................................41
3.4.2 Weight........................................................................................................................ 41
3.5 Electrical Tests.................................................................................................................. 42
3.5.1 Standards.................................................................................................................... 42
3.5.2 Installation Requirements............................................................................................ 42
3.5.3 Insulation and Safety Tests.......................................................................................... 42
3.5.4 EMC Immunity Tests (Type Tests, Test under Mounting Conditions)..............................42
3.6 Mechanical Tests...............................................................................................................43
3.7 Environmental Conditions................................................................................................. 44
3.7.1 Temperatures.............................................................................................................. 44
3.7.2 Humidity..................................................................................................................... 44
3.7.3 Other Environmental Information................................................................................ 44
3.8 Protection Degree according to IEC 60529.........................................................................45
4 7XR87 Voltage Divider for Excitation Voltage............................................................................................47
4.1 Block Diagram...................................................................................................................48
4.2 Connection Notes............................................................................................................. 49
4.2.1 Overview.....................................................................................................................49
4.2.2 Connection Data for Terminal C................................................................................... 49
4.2.3 Connection Data for Terminal A and B..........................................................................50
Table of Contents
8 SIPROTEC, Coupling Units for Generator Protection, Manual
C53000-H5040-C072-1, Edition 09.2018

Siemens SIPROTEC 7XR81 Specifications

General

Brand	Siemens
Model	SIPROTEC 7XR81
Category	Power distribution unit
Language	English