HV Breakout Module – Mounting and installation
Installation Manual
13
Version 01.20 // 2021
4.3.1 HV BM 1.x: Connection diagrams
i
f
The red arrows indicate the technical (positive) direction of the current.
f
The blue arrow indicates the technical (positive) direction of the voltage.
f
For the wiring displayed, the technical current and, if measured, the
technical voltage are output with the correct polarity.
Current and voltage measurement
Fig. 4-2 shows the appropriate diagram if current and voltage are to be measured. The source
is located on the left, the consumer on the right.
The current is measured in the
minus path
in order to minimize disturbances of the current
measurement. The voltage is measured on the consumer side between
plus
and
minus
path.
Ⓐ
-
+
-
+
+
-
+
-
HV BM
Shunt
Ⓥ
Source
Consumer
I
U
Fig. 4-2: HV BM 1.x, connection diagram for voltage and current measurement
Exclusive current measurement in the minus path
Fig. 4-3 shows the appropriate diagram if only current in the
minus path
is to be measured.
Ⓐ
-
+
+
-
HV BM
Shunt
⊗
I
Fig. 4-3: HV BM 1.x, connection diagram for current measurement in the minus path
Exclusive current measurement in the plus path
Fig. 4-4 shows the appropriate diagram if only current in the
plus path
is to be measured.
Ⓐ
-
+
HV BM
Shunt
⊗
I
Fig. 4-4: HV BM 1.x, connection diagram for current measurement in the plus path
