Power Protections - ABB SACE Tmax XT2 User Manual

18 - Power Protections

The Power protections, partially available by default for Ekip Hi-Touch and Ekip M Touch models
List
and configurable on the remaining models as an additional software package, are:
Name
RP
D
OQ
OP
UP
RQ
Cos φ
RP Protection Function
If the total active power exceeds the P11 threshold for a time greater than t1, the protection sends
the TRIP command.
To verify and simulate the trip times based on all the parameters, see:


Parameters
Parameter
Enable
Trip Enable
Threshold
P11
Time t11
Constraints, limitations, and additional functions
From the service connector (with Ekip Connect) or with system bus communication it is also
possible to access the block functions, see page70.
1SDH002031A1002 ECN000092998
Type of protection
Reversal of active power
Directional short circuit with adjustable delay
(NOTA) Reactive maximum power
(NOTA)
Active minimum power
(NOTA)
Active maximum power
(NOTA)
Reversal of reactive power
Minimum Cos φ
NOTE: protection not available by default with Ekip Hi-Touch and Ekip M Touch,
however it can be added by requesting the relative software package
Protection summary table with the operating characteristics (page 79)
Chart with tripping curve (page 91)
Description
Enables/disables protection and availability on menu of the
parameters
Activates/deactivates the open command: if disabled, the alarm
and the lapsing of the protection time are managed only as
information
Defines the value that activates the protection.
The value is expressed both as an absolute value (kW) and as a
relative value (Sn), settable in a range:
-0.05 Sn .. -1 Sn with 0.001 Sn step
NOTES: threshold expressed in Sn preceded by the
sign "-" to indicate that it is reversed power
This is the trip time of the protection; the value is expressed in
seconds, which are settable in a range:
0.05 s .. 120 s, with 0.01 s step
Rev. B
Page
57
58
60
60
61
62
63
Default
OFF
OFF
-0.1 Sn
10 s
SACE Tmax XT2 – XT4 | 57