Nautel NX5, Installation Manual

Page: 46 / 70

NX5/NX3 INSTALLATION MANUAL COMMISSIONING TASKS
PAGE 2.8.4 VERSION 3.1 2021-04-22
Figure 2.8.2: NX5/NX3 Power Transformer Tap Changes
360 - 505 V ac transformer
200 - 250 V ac transformer
MINOR TAPS
MINOR TAPS
MAJOR TAPS
MAJOR TAPS
NOTE: Changing major tap
settings requires moving
the top of the tapping strap
to the new major tap on
each of the three primary
windings
NOTE: Changing minor tap
settings requires moving
both the bottom of the
tapping strap and the user-
provided ac input wire to the
new minor tap position on
each of the three primary
input connections (see
Figure 2.8.3 on page 2.8.5 )