98-100 ISSUE 8
23
U
SING
IR, ILK, HPDC, HPAC T
ESTS
- (H
IGH
V
OLTAGE
T
ESTS
)
Voltech AT3600 or ATi programs that include any of these tests should be connected
such that the LO winding is the one that is connected to the DC1000 output.
Fig.10
below illustrates this setup.
INCORRECT CONNECTIONS TO THE DC1000
MAY CAUSE DAMAGE.
Fig.10
U
SING
SURG, MAGI, STRW, WATT, VOC T
ESTS
These tests must not be used on any winding on a component to which a DC1000
is attached.
The surge voltage will effectively test the DC1000, not the winding, and
this may cause damage to your DC1000.
AT T
ESTS
LSBX – I
NDUCTANCE WITH
E
XTERNAL
B
IAS
(S
ERIES
C
IRCUIT
)
The inductance of a transformer winding while an external bias current is
flowing through it may be tested using series or parallel equivalent circuit
models. Initially the DC bias current is set up and allowed to stabilize. An AC
voltage is applied across the selected winding; the voltage across, and current
through, the winding is then measured using harmonic analysis. The measured
voltage is divided by the current to obtain a complex impedance and the
inductance is calculated.
Summary of Contents for dc1000
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