Positron 3782091C/50, User Manual

Page: 53 / 74

Interpreting Graphic Results
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Figure 17: Example of a Graph of a Composite (polymeric) Insulator Scan shown using LOG Scale
A
E
C
B
D
Skirt (Shed) Number
6.0 Interpreting Graphic Results
6.1 Understanding the Graphic
The data transfer software on the Tablet/Laptop creates ASCII files. MS-Excel or any text editor,
such as Microsoft NOTEPAD, can import these files. The tagging of an insulator creates, an ASCII
file “.LOG”, which contains time tag and insulator identification pairs. The associated data file
".PRN" contains the same time tag which is used to identify the data.
See Figure 17 for a description of the fields shown on the graphs.
A) Log/Lin indicates the scaling of the graphic results of the scans, and is selectable.
B) Shows the date of scan and the type of insulator tester (CTester = Composite Tester)
C) Detailed information of the scanned insulator taken from the user’s insulator list.
D) “t = 497” indicates the number of seconds since midnight.
E) This pull-down menu allows the selection of an insulator identification:
i. 7010 identifies the particular power transmission line being scanned
ii. 0038 identifies a particular tower associated with the power transmission line being
scanned
iii. D indicates the power phase associated with the power transmission line being scanned
iv. 1 indicates that it is the 1st insulator for the given phase,
v. The last two characters can be any alphanumeric characters chosen by the user. These
last 2 characters are not used by the software Search function. The other alphanumeric
characters are used for the "Search for a given insulator” function.