ABB SACE Tmax XT2 User Manual

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
35
Voltage Protections
46
Advanced Voltage Protections
50
Frequency Protections
54
Power Protections
57
Adaptive Protections
65
Motor Protections
66

ABB SACE Tmax XT2 Specifications

General

Brand	ABB
Model	SACE Tmax XT2
Category	Circuit breakers
Language	English