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Module 96-PA-RCM / 96-PA-RCM-EL
6. Inputs and interfaces
6.1 Analog inputs I5 and I6 – Residual cur-
rent input/current signal input
L1
L2
L3
N
PE
Load
Fig. Connection variant, residual current measurement via cur-
rent transformer (Type A).
0..30 mA
0..30 mA
I5
I6
The basic device with module is suitable for use
as a residual current monitoring device (RCM) for
monitoring alternating currents, pulsating direct
currents and direct currents.
With the monitoring of residual currents (RCM,
Residual Current Monitor) of an electrical system
via inputs I5 and I6 (terminals 29/30 and 31/32),
the basic device with module is able to trigger
warning pulses when the limit value is exceeded.
The system operator can be alerted before a pro-
tective device is triggered.
The measurements in medium and high voltage
networks are made via current and voltage trans-
formers.
Type A
Type B and Type B+ (enhanced frequency
range)
Connection of suitable external residual current
transformers with a nominal current of 30 mA can
be made on residual current transformer inputs I5
(terminals 29/30) and I6 (terminals 31/32).
The basic device with module measures residual
currents according to IEC/TR 60755 (2008-01) of:
INFORMATION
·The residual current monitoring monitors the re-
sidual currents via external current transformers
and, if a threshold value is exceeded, can trigger
a warning signal.
·Limit values and warnings for the device or
system operator can be configured easily in the
GridVis
®
software.
INFORMATION
The basic device with module is not an in-
dependent protective device against electric
shock!
