1SDH002031A1002 ECN000092998 Rev. B
SACE Tmax XT2
– XT4 | 41
G Protection [2]
Ekip M Touch
G protection of the Ekip M Touch differs with the other models in the following ways:
BlockOnStartUp
block enabled and cannot be changed (see page 78)
StartUp Time
cannot be changed and set with the value of Motor StartUp (depending on
the trip class, see page 66)
Curve set as t = k not changeable
Constraints, limitations, and additional functions
With curve t = k/I
2
the trip time is forced to t4 if the calculations result in a theoretical value
that is lower than t4 itself
With CB size 100A, without
Vaux
and with threshold I4 < 25 A, the threshold itself is forced
to 25 A and the display shows the error
Configuration
without
Vaux
and with time t4 < 100 ms, the time itself is forced to 100 ms and the display
shows the error
Configuration
depending on the set threshold I4, the protection is deactivated for Ig greater than:
8 In with threshold I4
0.8 In; 6 In with 0.8 In > I4
0.5 In; 4 In 0.5 > In
0.2 In; 2 In with
I4 >0.2 In
From the service connector (with Ekip Connect) or with system bus communication it is also
possible to access the block functions and the selectivity type, see page70.
MCR Protection
Function
The protection is active for a calculated period of time starting from the change of state open
closed, then it turns off.
If during this period the current of one or more phases exceeds the I3 threshold, after a fixed time
that cannot be programmed 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 78)
Chart with tripping curve (page 85)
NOTE: to activate MCR, the I protection must be disabled
Parameters
Parameter
Description
Default
Enable
Enables/disables protection and availability on menu of the
parameters
OFF
Threshold I3
Defines the value that activates the protection.
The value is expressed both as an absolute value (Ampere) and as
a relative value (In), settable in a range:
1.5 In .. 15In with 0.1 In step
6 In
Monitor time
Defines the interval of time in which the MCR protection is active,
calculated from the open
closed status change
The value is expressed in seconds, which are settable in a range:
0.04 s .. 0.5 s with 0.01 s step
0.04 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 and the selectivity type, 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 ...
