Siemens SENTRON PAC4200, Manual, Page: 123 / 252

Parameterizing
9.2 Parameterizing the operator interface
SENTRON PAC4200
Manual, 09/2008, A5E02316180B-01
123
Use PTs? Measurement with/without voltage transformer
ON/OFF switch: ON / OFF.
ON: Measurement using voltage transformers.
When measuring via voltage transformer, the device
must know the voltage conversion ratio. For this
purpose, the primary and secondary voltages must be
specified in the fields "PT PRIMARY" and "PT
SECONDARY".
When changing from direct measurement to
measurement using voltage transformers, the device
accepts the last set reference measuring voltage as the
secondary voltage and as the primary voltage.
OFF: Measurement direct on the low-voltage
system.
When changing from measurement using voltage
transformers to direct measurement, the device
accepts the last set secondary voltage as the reference
measuring voltage.
Default: Off
VOLTAGE INPUT Rated voltage of the measuring system. Must be specified if
measuring is done direct on the system without voltage
transformers.
Range: 1 V to 690 V, freely adjustable (max. 600 V for
Vph)
Default value: 400 V
The property "VOLTAGE INPUT" is only visible, if
"USE PTs?" is set to " Off".
PT PRIMARY Primary voltage. Must be specified if a voltage transformer is
used for measuring.
Range: 1 V to 999999 V, freely adjustable
Default value: 400 V
The property "PT PRIMARY" is only visible, if
"USE PTs?" is set to " On".
PT SECONDARY Secondary voltage. Must be specified if a voltage transformer
is used for measuring.
Range: 1 V to 690 V, freely adjustable (max. 600 V for
Vph)
Default value: 400 V
The property "PT SECONDARY" is only visible, if
"USE PTs?" is set to " ON".