1SDH002031A1002 ECN000092998 Rev. B
SACE Tmax XT2
– XT4 | 34
Protections
Principle of
Operation
The protection functions are available with all models and versions of Ekip Touch.
Each protection is combined with a different signal (currents, voltages, frequencies, powers, etc.)
but the operating principle is common:
1. If the measured signal exceeds the
threshold
set, the specific protection activates (pre-
alarm and/or
alarm
condition).
2. The
alarm
is shown on the display, and, based on the protection parameters set, after a
time interval (timing) it can be converted into an
opening command (TRIP)
to the CB's
internal Trip coil.
NOTES:
If the measured signal falls below the threshold set before the tripping time has
elapsed, Ekip Touch exits the alarm and/or timing state and returns to normal
operating condition
All the protections have a default configuration: check the parameters and change
them as needed for installation before startup
TRIP
With the
Ekip CI
module, Ekip M Touch allows selecting a different TRIP configuration so that, if
tripped, a contact of the Ekip CI module connected to an external contactor (
Normal
mode) is
triggered.
NOTE: for I and G protections, the TRIP is always managed with a Trip Coil command
For more details see the Ekip M Touch parameters (page 66)
References
Many protection thresholds are shown on the display in two different sizes: the absolute and
relative values.
The relative value depends on the type of measurement:
Protection type
Reference
Description
Power
In
Rated size of the Trip unit
Voltage
Un
Line-to-line voltage set
Frequency
fn
Frequency set
Rating
Sn
√
3 x In x Un
Protection
packages
The protections listed in the following chapters are grouped by packages, whose availability
depends on the Trip unit model and version and possible installation as an additional package:
Package
Page
Standard Protections
Voltage Protections
Advanced Voltage Protections
Frequency Protections
Power Protections
Adaptive Protections
Motor Protections
Summary of Contents for SACE Tmax XT2
Page 84: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 84 L curve Ekip M Touch S curve t k I2 ...
Page 86: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 86 G curve t k I2 G curve t k ...
Page 87: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 87 IU curve UV curve UV2 curve ...
Page 88: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 88 OV curve OV2 curve VU curve ...
Page 89: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 89 S V curve S2 V curve RV curve ...
Page 90: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 90 UF curve UF2 curve OF curve OF2 curve ...
Page 91: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 91 RP curve D curve ...
Page 92: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 92 OQ curve OP curve ...
Page 93: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 93 UP curve RQ curve ...
Page 94: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 94 ROCOF curve R JAM curve R STALL ...
Page 95: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 95 UC curve ...
