Bender ISOMETER iso1685DP, Руководство пользователя

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iso1685DP_D00272_02_M_XXEN/07.2017
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12. Device profiles
Nominal system
voltage
Mains frequency
System
leakage
capacitance
Measuring
voltage
Description
Power circuits
AC 0…1000 V/
DC 0…1500 V
DC, 15…460 Hz 0…150 μF ±50 V
Main circuits without dynamic frequency changes.
The universal profile is suitable for all systems primarily with constant mains frequencies and
extraneous DC voltages. When using inverters and dynamic frequency control, select
Inverter > 10 Hz or Inverter < 10 Hz.
High capacitance
AC 0…1000 V/
DC 0…1500 V
DC, 15…460 Hz 0…500 μF ±50 V
For systems with high leakage capacitances, e.g. ship applications, the impact of leakage
capacitances on the measuring result can be significantly reduced by selecting this profile.
Inverter > 10 Hz
AC 0…1000 V/
DC 0…1500 V
DC, 10…460 Hz 0…150 μF ±50 V
This profile is used for systems with dynamic frequency control by inverters in the range 10
to 460 Hz in order to optimise the measurement with respect to the measuring time and
quality.
Inverter < 10 Hz
AC 0…1000 V/
DC 0…1500 V
DC, 1…460 Hz 0…150 μF ±50 V
For systems involving extremely low-frequency control in the range of up to 1…460 Hz and
very low and continuously changing extraneous DC voltages due to dynamic load condi-
tions in an IT system, continuous insulation monitoring can be optimised using this profile.
Fast 2000 μF
AC 0…1000 V/
DC 0…1500 V
DC, 15…460 Hz 0…2000 μF ±50 V
For systems with very high leakage capacitances, e.g. in large-scale photovoltaic systems,
this profile ensures correct measurement.
The response value range changes depending on the selected profile. Re-
fer to
“Response values for insulation monitoring” auf Seite 54 .