The test setup for Magnetic Balance is identical to
Quick Test setup. When running a Magnetic Balance
test, you also get the turns ratio results.
Magnetic balance is an advanced diagnostic test
typically preformed during transformer construction
and commissioning used to detect problems such
as inter-turn and inter-strand shorts, external loops
around the core, and wrong interleaving joints. It
is also useful in determining if a transformer core is
magnetized and checking that the mechanical prop-
erties of the core and windings have not changed
after a fault.
5.23 Magnetic Balance
Test Setup
5.23.1 Magnetic Balance
Test Options
5.23.2 Magnetic Balance
Test Buttons
Options Available Settings
See Secondary Vector
Selection Screen (5.9.2)
0-999,999 V
Auto
3Ø Step Up
3Ø Step Down
1Ø Step Up
1Ø Step Down
See Primary Vector
Selection Screen (5.9.2)
Primary Vector
Optional SW Feature
Secondary
Tertiary
Secondary Vector
Primary Tap Voltage
Secondary Tap Voltage
Mode
Options based on
Default Nameplate
13 character
Alphanumeric
1-125 V Step Up
(ADV model)
1-250 V Step Up
(EX / PRO Model)
1 - 48 V Step Down
Primary Tap
Secondary Tap
Test ID
Test V
Options
Available Settings
Test Voltage
Output
Starts test
Transformer Nameplate
Set transformer settings
Operation
44 TTRU3 User Manual us.megger.com
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