Protections
Operating principle The protection functions are available with all Ekip Touch models and versions.
References Many of the protection thresholds are displayed in two different quantities: absolute value and relative value.
Protections packages The protections described in the following chapters are grouped into packages, the availability of which
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Each protection is associated with a different signal (current, voltages, frequencies, powers, etc) but the
operating principle is the same:
1.
If the signal measured exceeds the set threshold, the specific protection activates (prealarm and/or
alarm).
2.
The alarm appears on the display and, after a period of time (timing t
parameters set, can convert into a trip command (TRIP) transmitted to the internal Trip coil of the
CB.
NOTE:
• if the signal measured drops below the set threshold before the trip time has elapsed, Ekip
Touch quits the alarm and/or timing status and returns to the normal operating condition
• all protections have a default configuration: check the parameters and change to suit the
installation requirements before putting into service
TRIP When the Ekip CI module is present, Ekip M Touch allows a different TRIP configuration to be selected so
that, if a trip occurs, a contact of the Ekip CI module connected to an external remote control switch is
commanded (Normal mode).
NOTE: TRIP is always controlled by a command to the Trip Coil for protections I and G
Consult the parameters used with Ekip Touch MLRIU for further details (page 130).
The relative value depends on the type of measurement:
Type of protection
Current
Voltage
Frequency
Power
depends on the model and version of the Trip unit, and on their ability to be installed as additional package:
Package
Standard Protections
Voltage protections
Voltage Advanced protections
Frequency protections
Power protections
Adaptive protections
Motor protections
Reference
Description
In
Nominal current of the Rating plug
Un
Line-to-line voltage setting
fn
Frequency setting
√3 x In x Un
Sn
Page
43
53
56
60
63
70
71
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), depending on the protection
t
Protections | 6 - PIN and security