Dc1000 Tests; Ac Interface Tests - Voltech AT5600 User Manual

C H A P T E R 7 – T E S T S
7.1.3.
Test Description
Inductance with
LSBX*
External Bias
(Series Circuit)
Inductance with
LPBX*
External Bias
(Parallel Circuit)
Impedance with
ZBX*
External Bias
These tests require the use of one or more Voltech DC1000 Precision DC Bias Current Sources.
Contact your Voltech sales office for details.
7.1.4.
Test Description
MAGI (External
MAGX
Source)
VOCX (External
VOCX
Source)
WATT (External
WATX
Source)
STRW
STRX
(External
Source)
These tests require the use of one or more Voltech AC INTERFACE FIXTURE
Contact your Voltech sales office for details.
AT5600 User Manual 98-119 issue 14
A N D T E S T C O N D I T I O N S

DC1000 Tests

Main Application
Wound components
that usually carry a
significant DC Bias
current in normal
operation.
Wound components
that usually carry a
significant DC Bias
current in normal
operation.
Audio & Telecom

AC INTERFACE Tests

Main Application
Usually line
frequency
transformers
Usually line
frequency
transformers
50/60Hz Iron core
transformers
Line frequency &
High Frequency
Transformers
Winding Tested
Selected Windings
Select Windings
Selected Windings
Winding Tested
One winding, usually
the primary
All other windings
One winding
One Winding
(Usually the primary)
Reason for Test
Checks number of
turns, right grade of
correctly assembled
core material, where
bias current is
greater than LSB test
can handle.
Checks number of
turns, right grade of
correctly assembled
core material, where
bias current is
greater than LPB test
can handle.
Checks impedance at
a given frequency,
while applying a
greater bias current
than is possible with
ZB test.
Reason for Test
Correct primary
turns. Correct core
material properly
assembled
Correct secondary
turns. Correct
phasing
Correct core material.
Properly assembled
Checks integrity of
inter-turn insulation,
the magnetic material
and joints
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