Measuring The Insulation Resistance - Siemens SINAMICS GL150 Reference Manual

Tests
3.4 Insulation test
3.4.2

Measuring the insulation resistance

Fundamentals
Tests are performed in accordance with IEC 62103.
The insulation resistance of the individual circuits is measured before and after the high-voltage
test, and the following value must be obtained:
Rated operating voltage
Below 1000 V
Above 1000 V
Test equipment
A calibrated test instrument is used for the test.
Test procedure
1. The circuits to be tested are separately short-circuited corresponding to the individual
2. The circuits that are presently not connected to the test instrument are connected to ground
3. The test voltage is adjusted for each circuit corresponding to the insulation test report.
4. The circuits are tested with respect to one another and with respect to the PE protective
Result
The test is passed if the insulation resistances lie within the tolerance specified by the standard.
34
voltage levels.
– Power circuit/circuits
– Various auxiliary circuits
potential.
conductor at the electrical cabinet.
Insulation resistance
At least 1 MΩ
At least 10 MΩ
SINAMICS GL150 6SL3855 F03 F70 F76 F79 F98 E11
Reference Manual Rev.201902141423 GL150 wassergekühlt