janitza 800-CT8-A, Руководство пользователя и технические данные

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5. Installation
5.1 Current measurement with module
800-CT8-A
Your 800-CT8-A module in combination with the
basic device (UMG 801):
·measures current exclusively via current
transformers.
·allows the connection of current transformers with
secondary currents of ../1 A and ../5 A for current
measurement inputs I1 to I8.
·has a current transformer ratio of 5 A/5 A (I1 to I8)
as the default setting.
·does not measure DC currents.
Fig. Connection variant “Current measurement" with
800-CT8-A module and terminal assignment.
L1
N
PE
L3
L2
S1 S2
S1 S2
S1 S2
S1 S2
L1
N
PE
L3
L2
Consumer S1 S2
S1 S2
S1 S2
S1 S2
Consumer
INFORMATION
You can configure the current transformer ratios via
the user interface of the basic device or conveniently
using the "Device configuration" function of the
GridVis
®
software.
Observe the following:
·For single measurements, the phase assignment
of the current measuring channels is arbitrary.
The measurement of system performance
characteristics requires phase L1 - L3.
·The connection variants for current measurement
in the usage information of your basic device
WARNING
Warning of electrical currents and voltages
Current transformers operated while exposed on
the secondary side (high voltage peaks) can result in
severe bodily injury or death.
Avoid exposed operation of the current transformers
and short circuit unloaded transformers!