Baker D12R - Manual (Page 2)

Resistance, HiPot and Surge in one
Tester
applied to other motors besides simple induction
motors. The D Series can be used to test all the
rotating fields of a synchronous motor by storing
With the D12R/D6R/D3R Digital Winding Tester
the waveform from a surge test on one coil, and
from Baker Instrument Company, an SKF Group
comparing that waveform to a waveform from
Company, you can perform Resistance, HiPot
every other coil. The Digital Winding Tester can
and Surge tests, as well as digitize and store data
also be used on DC armatures and fields. The
for future use.
resulting waveform can then be compared to all
other bar-to-bar or span tests to detect a
The Resistance Test verifies the existence of dead
winding fault.
shorts within the turn-to-turn coils, shows any
imbalances between phases due to turn count
Test results from up to 10 motors in the field can
differences, along with locating poor wire
be stored, retrieved, printed, and uploaded to a
connections or contacts.
desktop program for file management and
analysis. Each of these 10 motor records has its
own memory location. Each location can store
up to three surge wave patterns plus DC HiPot
test voltage and current.
DC HiPot testing detects faults in
groundwall/earth insulation, and also provides
a complete Polarization Index test. The
groundwall/earth insulation system consists of
the wires insulation, slot liner insulation, wedges,
varnish, and sometimes phase paper.
Surge testing detects faults in both inter-turn
winding and phase-to-phase insulation systems.
Using advanced analog-to-digital conversion
hardware, the “D” series captures the surge test
waveform, remembers it, displays it indefinitely,
and prints it to the included ink jet printer. This
surge waveform storage capability can be