Gw Instek GPT-9603 Insulation measuring device, GPT-9603 Manuel D’Utilisation
Codes de produits
GPT-9603
OPERATION
31
IR Grounding Mode Information
Background
For IR tests the GROUND MODE is always set
to OFF. Here, the return terminal is floating
with respect to the earth ground. This mode is
for DUTs that are floating and not directly
connected to an earth ground. In this mode any
stray capacitance/resistance that leaks to the
earth ground from the DUT side of the testing
circuit and will not be measured.
to OFF. Here, the return terminal is floating
with respect to the earth ground. This mode is
for DUTs that are floating and not directly
connected to an earth ground. In this mode any
stray capacitance/resistance that leaks to the
earth ground from the DUT side of the testing
circuit and will not be measured.
Warning
When GROUND MODE is set to OFF, the DUT,
fixtures or connected instrumentation cannot be
grounded. This will short circuit the internal
circuitry during a test.
fixtures or connected instrumentation cannot be
grounded. This will short circuit the internal
circuitry during a test.
Example
GROUND MODE = OFF, DUT floating
High Voltage terminal
DUT
GPT-9600
stray
resistance,
capacitance
Return terminal
GROUND MODE = OFF, DUT grounded
High Voltage terminal
DUT
GPT-9600
stray
resistance,
capacitance
Return terminal