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Because of the capacitors in the internal coupler
of NSG 3040, earth leakage currents of up to
4 A can occur in the EUT power supply network. The
test system must therefore be correctly earthed and
be powered from a supply that is not protected by a
residual current detector (RCD).
3) Switch on EUT power on INA 6501 (red switch) when power for the EUT is
required
4) Switch on the NSG 3040
5) Select the required variable voltage using rotary switch on the INA 6501
Operation
The NSG 3040 operation software does not know that an external transformer
is connected. The user interface software in the dips and interrupts test will
always show
External
in the field for
Voltage Uvar
.
It is up to the user to make sure that the right voltages are set on the manual
external transformer.