6.2.1 Introduction to Transformer Profiles and Data Structure
There are many instruments that measure and offer the possibility to store the measured value.
This is a very useful feature which saves time and eliminates the possibility of errors of writing
down values by the operator. However, the measured data must be handled and organized in a
proper manner to be useful. Mishandling data collected by multiple operators and multiple
instruments could easily introduce errors and mistakes within the data sets.
The WR instruments offer another very powerful software tool for organizing and handling
transformers which are tested time and again. This allows building a history of a transformer.
Once a transformer record, or say a Profile, is created, then many measurements can be directly
attached to this record file. Manually logging, storing and sorting measurements will not be
necessary once a Profile is created.
The Profile of a transformer record contains the general header information and an attached result
contains the measurements of the transformer. Or to define it more exactly:
A transformer / profile contains:
•
Number of winding systems
•
Type of winding systems (Configuration)
•
Rated voltages (primary, secondary, tertiary)
•
Name plate info (name, serial number, location, manufacturer, type and remarks)
A measurement contains
•
Measured results of all phases
•
Date and time
•
Operator name
Start by creating a new transformer Profile. Then measurements are made and stored (attached to
the Profile). In this case the profile and the actual measurement will be stored together.
Or you may load an existing transformer Profile then do the required measurements and store it. In
this case, the new measurement will be attached (stored) with the loaded or active transformer
Profile.
This is illustrated in the following scenario:
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14
Page 42 of 139
