ABB SACE Emax 2 Series Operating Instructions Manual page 81

OQ Protection
t
Q27
t27
OP Protection
t
P26
t26
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Function
The protection sends a TRIP command if one or more of the reactive power values detected by the unit
exceed threshold Q27 for longer than t27.
OQ
To check and simulate the trip times in relation to all the parameters, please consult:
• summary table of the protections with the operating characteristics (page 96)
• the graph with trip curve (page 110)
Parameters
Q
Parameter Description
Activates/deactivates the protection and its availability in the
Enable
parameters menu
Activates/deactivates transmission of the open command: if
Trip Enable disabled, the alarm and exceedance of protection time are only
managed as information
Establishes the value that activates the protection.
The value is given as both absolute value (kVAR) and relative value
Threshold Q27
(Sn) and can be set within the range: 0.4 Sn to 2 Sn in 0.001 Sn
steps
This is the trip time of the protection; the value is given in
Time t27
seconds and can be set within a range: 0.5 s to 100 s, in 0.5 s
steps
Limitations and additional functions
The block functions can also be accessed by means of the service connector (via Ekip Connect) or by
connection to the system bus (page 86).
Function
The protection sends a TRIP command if one or more of the active power values detected by the unit
exceed threshold P26 for longer than t26.
OP
To check and simulate the trip times in relation to all the parameters, please consult:
• summary table of the protections with the operating characteristics (page 96)
• the graph with trip curve (page 110)
Parameters
P
Parameter Description
Activates/deactivates the protection and its availability in the
Enable
parameters menu
Activates/deactivates transmission of the open command: if
Trip Enable disabled, the alarm and exceedance of protection time are only
managed as information
Establishes the value that activates the protection.
The value is given as both absolute value (kW) and relative value
Threshold P26
(Sn) and can be set within the range: 0.4 Sn to 2 Sn in 0.001 Sn
steps
This is the trip time of the protection; the value is given in
Time t26
seconds and can be set within a range: 0.5 s to 100 s, in 0.5 s
steps
Limitations and additional functions
The block functions can also be accessed by means of the service connector (via Ekip Connect) or by
connection to the system bus (page 86).
ABB | SACE Emax 2
Default
OFF
OFF
1 Sn
1 s
Default
OFF
OFF
1 Un
1 s
Ekip Touch - Protections
6 - Power protections