Protection Oq - ABB SACE Emax 2 Series Installation, Operation And Maintenance Instructions

Protection OQ

t
OQ
Q27
t27
114 | © 2013 ABB | 1SDH001000R0002 - L7804
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Parameters
It is possible to modify various parameters:
Parameter
Enabling
Threshold (Kq)
Threshold (Q24)
Time (t24)
Protection RQ has Trip Enable, see page 93.
Path
Main page - Menu - Advanced protections
Function
The protection OQ trips when the power supplied rises above the set threshold.
If the reactive power rises above the activation threshold, the protection trips within a fixed time
set by the user.
Parameters
It is possible to modify various parameters:
Q
Parameter
Enabling
Threshold (Q27)
Time (t27)
Protection OQ has Trip Enable, see page 93.
Description
Activates/deactivates the protection.
It defines the course (slope) of the protection function.
It defines the starting point on the Q axis of the protection curve.
It is represented both as an absolute value (kVAR) and a relative
value (Sn, referring to the rated voltage set on the release).
NOTES: the threshold expressed in Sn is preceded by the
sign "- " in order to indicate that it refers to reverse power.
This is the delay time between the exceeding of the tripping
threshold and the sending of the opening command
Description
Activates/deactivates the protection.
Defines the reactive power value above which the protection is
activated (in reference to the curve, it is the part parallel to the
ordinate).
It is represented both as an absolute value (kVAR) and a relative
value (Sn, referring to the rated voltage set on the release).
The delay time between the exceeding of the Q27 threshold and
the sending of the opening command (in reference to the curve, it
is the part parallel to the abscissa).
Ekip Touch protection release | 12 - G Touch protections
ABB | SACE Emax 2