The
transition from the comparative measurement
status back the initial position realised
smoothly and safely.
7. Restoring the lever link back
into original position
Switching backwards the lever, restores the
entire arrangement into its original status.231
CAT1 Version 2025
Application
range
B
9$
. Disconnecting the reference
measuring instrument
The reference measurement instrument is
therefore disconnected from the installation
by simply removing its plugs from the
test sockets the terminal block and the
installation restored the initial status
CT
A
A
v
CT
A
A
v
CT
A
A
v
CT
A
v
Instrument transformer wiring
TTB-Range
B. Pressing down the TTB CM
lever link
Pressing down the TTB lever link
restores the mechanical connection the
two disconnect levers within the application.
8.
6.
The comparison measurement has now
been successfully completed and the correct
functional verification the ammeter connected
downstream the terminal has been carried out.Performing the comparative reading
of the two ammeters
The values measured the ammeter connected
downstream can now compared with the
values given the reference meter since both
instruments are reading the same current
