ABB SACE Tmax XT2 User Manual page 172

Configurations If the Ekip Synchrocheck module is detected correctly by Ekip Touch the specific configuration
on menu area is activated in the Advanced-Synchrocheck menu.
Parameter
Activate
Dead bar
option
Udead
Threshold
(1) (2)
Threshold Ulive
(2) (3)
Stability time
Delta Voltage
Delta
Frequency
Delta Phase
Dead bar
configuration
Auto Live-dead
detect
Auto Deadbar
detect
Primary voltage
Secondary
voltage
Concatenated
Ref
Contact Type
1SDH002031A1002 ECN000092998
Description
Enables/disables protection and availability on menu of the parameters
On= busbar active; Off= dead busbar present
Maximum external voltage (with dead busbar and configuration :
(2)
Normal is the first synchronism condition )
The value is expressed both as an absolute value (Volt) and as a relative
value (Un), settable in a range: 0.02 Un .. 2 Un with 0.001 Un step
Minimum voltage for starting monitoring of external voltage (with busbar
active) or internal voltage (with dead busbar and Normal configuration)
The value is expressed both as an absolute value (Volt) and as a relative
value (Un), settable in a range: 0.5 Un .. 1.1 Un with 0.001 Un step
Minimum time within which the Ulive Threshold condition must be fulfilled
to start up voltage monitoring.
The value is expressed in seconds, settable in a range: 100 ms - 30 s
with 1 ms step
Maximum difference between internal and external voltage (first
synchronism condition)
The value is expressed both as an absolute value (Volt) and as a relative
value (Un), settable in a range: 0.02 Un .. 0.12 Un with 0.001 Un step
Maximum difference between internal and external frequency (second
synchronism condition)
(4)
The value is expressed in Hertz, which is settable in a range:
0.1 Hz .. 1 Hz with 0.1 Hz step
Maximum difference between internal and external phase (third
synchronism condition)
(4)
The value is expressed in degrees, which are settable in a range:
5 ° .. 50 ° with 5 ° step
With dead busbar and generator:

Reversed = Ekip Synchrocheck/external contacts connected to the
generator

Normal= Ekip Synchrocheck/external contacts connected to the
network
Enables automatic synchronism control to be activated:

Manual = Ekip Touch considers the parameter Dead bar option

Automatic = Ekip Touch automatically evaluates the configuration to
be actuated between the dead busbar and the active busbar
Configuration for detecting dead busbar:

Manual = Trip unit considers the Dead Bar Configuration parameter

Automatic = Ekip Touch automatically evaluates the configuration to
be actuated between: Reversed and Normal
Rated voltage Un of plant; the value is expressed as an absolute value
(Volt), settable in a range: 100 V .. 1150 V with variable step
Secondary voltage of the transformer; the value is expressed as an
absolute value (Volt), settable in a range:
100 V .. 120 V with variable step
Network voltage entering module between the 3 plant voltages
Defines the rest status of the contact with non-present synchronism
between: open (NO) and closed (NC)
NOTES:
(1) parameter not available with busbar active and Auto Live-dead detect = Manual
(2) with dead busbar and configuration= Reversed, reverses the roles of internal and
external voltages
(3) to the minimum voltage condition, 10% hysteresis is applied: once it is reached,
the condition is lost if voltage falls below 90% of the set limit
(4) parameter not available with dead busbar and Auto Live-dead detect = Manual
Rev. B
Default
Off
Off
0.2 Un
0.5 Un
1 s
0.12 Un
0.1 Hz
50 °
Normal
Manual
Manual
100 V
100 V
U12
NO
SACE Tmax XT2 – XT4 | 172