Bender EDS3090 User Manual

3
Table of Contents
EDS309x_D00012_03_M_XXEN/11.2014
1. How to get the most out of this manual ............................................................. 7
1.1 How to use this manual ......................................................................................................... 7
1.2 Explanations of symbols and notes ................................................................................... 7
1.3 Overview of chapters .............................................................................................................. 8
2. Safety instructions .................................................................................................. 9
2.1 Intended use .............................................................................................................................. 9
2.2 Device-specific safety instructions .................................................................................... 9
2.3 General safety instructions ................................................................................................ 10
2.4 Qualified personnel .............................................................................................................. 10
3. System description .............................................................................................. 11
3.1 System components ............................................................................................................11
3.1.1 Overview of system components ................................................................................... 11
3.1.2 Insulation fault location equipment type list ............................................................. 12
3.1.3 Accessories .............................................................................................................................. 13
3.2 Function of the system components ............................................................................. 14
3.2.1 Locating current injector PGH18… ................................................................................ 14
3.2.2 Insulation fault locator EDS195P ..................................................................................... 14
3.2.3 Measuring clamps ................................................................................................................. 14
3.2.4 Coupling device AGE185 .................................................................................................... 15
3.3 Operating principle for insulation fault location (IΔL) ............................................. 15
3.3.1 Schematic diagram EDS system ...................................................................................... 16
3.3.2 Test cycle .................................................................................................................................. 16
3.3.3 Definitions ............................................................................................................................... 17
3.3.4 Currents in the EDS system ............................................................................................... 17
3.4 Operating principle for residual current measurement (IΔn) ............................... 18
4. Considerations prior to use ................................................................................ 19
4.1 How does the equipment for insulation fault location work ................................ 19
4.2 Requirements for reliable insulation fault location .................................................. 20
4.3 Reduced locating current .................................................................................................. 22
4.4 Response sensitivity characteristics of the EDS195P ............................................... 22
4.4.1 Response characteristics for main circuits in 3AC systems .................................... 23

Bender EDS3090 Specifications

General

Brand	Bender
Model	EDS3090
Category	Measuring Instruments
Language	English