Benning ST 755+ - Three-Phase Testing with the BENNING MA 3; Three-Phase Testing with the BENNING MA 2-16; Figure 7: BENNING MA 3; Figure 8 BENNING

7.9 Optional accessories
Functions
5284 / 08/2023 enBENNING ST 755+ / ST 760+50
7.9.2 Three-phase testing with the BENNINGMA3
The BENNINGMA3 serves as a measuring adapter for testing three-phase test samples and
supports the following measurements (passive):
• Protective conductor resistance
• Insulating resistance
• Functional test and phase sequence test of cables
• Alternative leakage current
– Protective conductor current, contact current, device leakage current, patient leakage
current
The test procedures21and22 [}page102] included in the device represent automatic test
procedures for using the BENNINGMA3.
When commissioning the measuring adapter, please observe the supplied operating manual as
well as the instructions for the corresponding individual test.
Figure7: BENNINGMA3
7.9.3 Three-phase testing with the BENNINGMA2-16
The BENNINGMA2‑16 serves as a measuring adapter for testing three-phase test samples
and supports the following measurements (active):
• Cable continuity
• Insulating resistance
• Protective conductor current
• Contact current
• Functional test (power consumption and current consumption of the test sample cannot be
determined)
The test procedures17-20 and22 [}page102] included in the device represent automatic test
procedures for using the BENNINGMA2-16.
When commissioning the measuring adapter, please observe the supplied operating manual as
well as the instructions for the corresponding individual test.
Figure8: BENNINGMA2-16