InteliMains
NT
, SW version 3.2.0
InteliMains-NT-MCB-MGCB-3.2.0-Reference Guide.pdf,
©ComAp – April 2015
134
7.32 Switchable Current measurement ratio
The value of the setpoint Basic settings:MainsCTprim can be change using the force value function.
This allows users to switch the transformer ratio of the current measurement on the fly. If a
measurement transformer with switchable transforming ratio or amplifier with a switchable
amplification is used, the range of the current measurement can be extended to accommodate
measurement of very high values as well as required measurement of very low values. The principle
of this function is shown in the following graph. For more information on Force value refer to a related
chapter.
Current measurement noise level
The level of current when MainsCTprim is switched
MainsCTprim is switched to 1/10
Transformer
changes
amplification to
10x
The current is still measured, although it would not
be if static amplification is used
Current indicated by the
controller
Physical current on the
controller CTs
C
AUTION
!
Never exceed the maximum allowed current at the controller CTs. Adjust the amplification properly
with hysteresis to prevent fluctuations and excesive current at controller CTs!
7.33 PLC functions
Number of PLC functions is the same for InteliMains-NT and InteliSys-NT. See description in IGS-NT-
Application guide-05-2013.pdf.
7.34 Multi language support
NT Family controllers support up to three languages that can be switched during controller duty. Every
terminal (i.e. Remote display or PC-InteliMonitor) can be switched to different language. Use PC-
GenConfig - Translator tool to translate texts to another language.
Default application archives contain all texts in English only.
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