Tettex 2293 - Default Chapter; Table of Contents

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Introduction

Contents

1 Introduction 9

1.1 Receiving Instructions .................................................................................. 9

1.2 General ........................................................................................................ 9

1.3 Scope of Supply ........................................................................................... 9

1.3.1 Standard scope of supply ................................................................ 9

1.3.2 Options and accessories ............................................................... 10

1.4 Optional features ........................................................................................ 10

1.5 Technical Data ........................................................................................... 12

1.5.1 Standard Features......................................................................... 12

1.5.2 Physical and Environmental Specifications ................................... 12

1.5.3 Resistance Measurement .............................................................. 12

1.5.4 Ratio Measurement ....................................................................... 13

1.5.5 Temperature Measurement ........................................................... 14

1.5.6 User Interface System ................................................................... 14

1.5.7 Printer paper Specification ............................................................ 14

1.5.8 Tap Changer Interface .................................................................. 14

1.5.9 Interlock Interface (optional) .......................................................... 15

1.5.10 Covered Standards ....................................................................... 15

2 Safety 16

2.1 General ...................................................................................................... 16

2.2 Essential Safety Recommendations .......................................................... 17

2.3 Interlock connection ................................................................................... 17

2.4 Summary.................................................................................................... 18

3 Theory 20

3.1 General Resistance Measuring Principle ................................................... 20

3.2 Power Supply Modes ................................................................................. 21

3.2.1 Parallel Mode on HV-side 16A ¦ 100V (A1) or 32A ¦ 50V (A2) ....... 21

3.2.2 Parallel Mode on LV-side 16A ¦ 100V (B1) or 32A ¦ 50V (B2) ....... 22

3.2.3 Individual Mode 2x 16A ¦ 50V (C) .................................................. 24

3.2.4 YNdx Mode 2x 16A ¦ 50V (D) ........................................................ 26

3.3 Measuring sequences ................................................................................ 27

3.3.1 Example 1 ..................................................................................... 27

3.3.2 Example 2 ..................................................................................... 28

3.3.3 Example 4 ..................................................................................... 28

3.3.4 Example 5 ..................................................................................... 29

4 Front Panel 30

5 Connection and Setup 32