Of Protection; Rp Protection - ABB SACE Emax E1.2 Operating Instructions For The Design Engineer

OF Protection

t
OF
f13
t13

RP Protection

RP
P11
t11
78 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A
Path
Main page - Menu - Advanced
Function
OF protection trips when the line frequency rises above the set threshold.
If the line frequency rises above the activation threshold, the protection trips within a fixed time set by the
user.
NOTE: the protection is not active for voltages <30V.
f
Parameters
Here is a list of the available parameters:
Parameter
Enable
Threshold f13
Time t13
OF protection has StartUp enable, see page 71.
Via Ekip Connect it is also possible to access the blocking functions, see page 72.
Path
Main page - Menu - Advanced
t
Function
RP protection trips when the total reverse active power exceeds the reverse active power threshold set.
When the total reverse active power rises above the set threshold, the protection delays for the set time t11
and then opens.
Parameters
P
Here is a list of the available parameters:
Parameter
Enable
Threshold P11
Time t11
RP protection has StartUp enable, see page 71.
Via Ekip Connect it is also possible to access the blocking functions, see page 72.
Description
To activate/deactivate the protection.
It defines the frequency value above which the protection is activated (with
reference to the figure above, the threshold is the part of the curve parallel to
the y-axis).
It is represented both as an absolute value (Hertz) and a relative value (fn,
nominal value defined on the trip unit).
The delay time between the exceeding of the f13 threshold and the sending of
the opening command (with reference to the figure above, the threshold is the
part of the curve parallel to the x-axis).
Description
To activate/deactivate the protection.
It defines the power value for which the protection is activated (with reference
to the figure above, the threshold is the part of the curve parallel to the y-axis).
It is represented both as an absolute value (KW) and a relative value (Sn,
referring to the rated voltage set on the trip unit).
NOTE: the threshold expressed in Sn is preceded by the sign "- " in
order to indicate that it refers to reverse power.
The delay time between the exceeding of the p11 threshold and the sending of
the opening command (with reference to the figure above, the threshold is the
part of the curve parallel to the x-axis).
Ekip Touch protection trip unit | 10 - Measuring Pro protections
ABB | SACE Emax 2