TTR300_330A-UG-EN-V01 March 2018
i
Table of Contents
Upon Receipt of Product .................................................................................................................................. v
1 PRODUCT OVERVIEW 300/330A .............................................................................................................. 1
Top Panel Controls ............................................................................................................................................ 2
TTR330A Top Panel Facilities ...................................................................................................................... 4
2 SAFETY ............................................................................................................................................................... 7
Safety is the Responsibility of the User .......................................................................................................... 7
General Safety Precautions ............................................................................................................................... 7
Input Power Precautions .................................................................................................................................. 8
3 SPECIFICATIONS ............................................................................................................................................ 9
Electrical .............................................................................................................................................................. 9
Input Power ...................................................................................................................................................... 9
Protective Devices ........................................................................................................................................... 9
Output Test Voltage and Current ................................................................................................................. 9
Test Frequency .............................................................................................................................................. 10
Loading of Test Transformer ..................................................................................................................... 10
Measuring Ranges ......................................................................................................................................... 10
Accuracy ......................................................................................................................................................... 10
Measurement Method .................................................................................................................................. 11
Transformer Winding Phase Relationship ................................................................................................ 11
Measuring Time ............................................................................................................................................ 11
Display .............................................................................................................................................................. 11
Memory Storage .............................................................................................................................................. 11
Communication Interface .............................................................................................................................. 11
Safety/EMC/Vibration .................................................................................................................................. 11
Physical Data.................................................................................................................................................... 12
Environmental Conditions ............................................................................................................................ 12
4 SOFTWARE INSTALLATION ................................................................................................................... 13
PowerDB Lite Setup & Installation (PC Control only) ............................................................................. 13
Software Installation (PC portion only) ....................................................................................................... 14
5 GENERAL TESTING PROCEDURES .................................................................................................... 17
Site Preparation ............................................................................................................................................... 17
Making Circuit Connections .......................................................................................................................... 17
Operating the TTR300/330A ....................................................................................................................... 19
6 THREE-PHASE Transformer RATIO TESTING ................................................................................... 21
Procedure ......................................................................................................................................................... 21
Test Form Controls - General ...................................................................................................................... 23
Transformer Test Conditions ........................................................................................................................ 25
Instrument Settings Button ........................................................................................................................... 25
Ratio Testing Methods ................................................................................................................................... 27
7 RATIO TRANSFORMER TESTING APPLICATIONS ....................................................................... 29
Single-Phase, Two-Winding Transformers –including Typical Pole Type transformers with Dual
Secondary’s ....................................................................................................................................................... 30
Three-Phase, Two-Winding Transformers ................................................................................................. 34
Three-Phase, Three-Winding Transformers ............................................................................................... 36
To Next Page
