AVTMTTR100-ENG Rev 6 Nov 2015
17
5
SETUP AND CONNECTIONS
General Instructions
When testing high-voltage transformers, caution must be used at all times and all
safety precautions followed. Read and understand all safety information
contained in Section 2, Safety.
F
WARNING
Ensure that the transformer to be tested is completely de-energized.
Check every winding. Ensure that all terminals of the transformer are
disconnected from line or load at the transformer. For some
transformers, connections to ground may be left in place.
Never interchange connections between the high- and low-voltage
transformer terminals. Failure to observe proper connections will result
in a safety hazard and may result in damage to the test set or
transformer.
The TTR100 has been designed to test a variety of transformers, such as: Single
phase, Three phase (one phase at a time), CTs, PTs and Regulators. The
connection instructions of the TTR100 to the device to be tested are contained
and illustrated within the TTR100.
NOTE: The illustrated connection diagrams are provided as connection
guides and do not suggest the physical location of the bushings/terminals
of the device being tested.
Transformers
The setup and connection instructions pertaining to ratio, polarity, and phase
relation assume that the transformer under test, connections, and terminal
markings comply with the requirements of ANSI C57.12.70-2011 and IEC 60076-
1. The H test leads of the test set are the exciting leads. The TTR100 will utilize
the 8 or 1.5V test voltage level when testing CTs, and it will automatically switch
between the indicated voltages. All other transformers will be tested at 8 V.
To Next Page
Loading...
Need help?
General
