1SDH002031A1002 ECN000092998 Rev. B
SACE Tmax XT2
– XT4 | 57
18 - Power Protections
List
The Power protections, partially available by default for Ekip Hi-Touch and Ekip M Touch models
and configurable on the remaining models as an additional software package, are:
Name
Type of protection
Page
RP
Reversal of active power
D
Directional short circuit with adjustable delay
OQ
(NOTA)
Reactive maximum power
OP
(NOTA)
Active minimum power
UP
(NOTA)
Active maximum power
RQ
(NOTA)
Reversal of reactive power
Cos φ
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
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:
Protection summary table with the operating characteristics (page 79)
Chart with tripping curve (page 91)
Parameters
Parameter
Description
Default
Enable
Enables/disables protection and availability on menu of the
parameters
OFF
Trip Enable
Activates/deactivates the open command: if disabled, the alarm
and the lapsing of the protection time are managed only as
information
OFF
Threshold
P11
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
-0.1 Sn
Time t11
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
10 s
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.
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 ...
