Rev. 3.00
22067_EDEBD
A0239-3617-3_EN
16
KBR multimess F144-2-LED-ESMS...-4
Current transformer connection:
Energy fl ow direction:
When installing the transformers, observe the current fl ow / energy fl ow direc-
tion. If the current transformer is installed the wrong way, the measured value
will be negative.
The prerequisite for this is that energy be consumed.
Assigning the measuring voltage input / current transformer input:
The current transformer on terminal 20/21 (k1/l1) must be installed in the phase
in which the measuring voltage for terminal 10 (L1) is measured. The same ap-
plies to the other transformer and measuring voltage connections.
With the multimess F144-2-LED-ESMS-...-4, you can check the phase sequence
as follows:
- Switch to the main menu "I"
- Connect the current transformer to the corresponding wires
- If connection and energy fl ow direction are correct, the device will only
display positive currents.
- If connections are wrong, all currents displayed will be negative. Interchange
the connections until the display shows correct values.
CAUTION
Before any interchanging, the current transformers must be shorted out!
Installation and electrical connection
