Protection Of; Protection Rp - ABB SACE Emax 2 Series Installation, Operation And Maintenance Instructions

Protection OF

t
OF
f13
t13

Protection RP

RP
P11
t11
99 | © 2013 ABB | 1SDH001000R0002 - L7804
Path
Main page - Menu - Advanced protections
Function
The 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.
Parameters
The following is a description of the parameters:
f
Parameter
Enabling
Threshold (f13)
Time (t13)
Protection OF has Trip Enable, see page 93.
Path
Main page - Menu - Advanced protections
t
Function
Protection RP 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 The following is a description of the parameters:
Parameter
Enabling
Threshold (P11)
Time (t11)
Protection RP has Trip Enable, see page 93.
Description
Activates/deactivates the protection.
Defines the frequency 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 (Hertz) and a relative
value (Fn, nominal value defined on the release).
The delay time between the exceeding of the f13 threshold and the
sending of the opening command (in reference to the curve, it is
the part parallel to the abscissa).
Description
Activates/deactivates the protection.
Defines the power value for 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 (kW) and as a relative
value (Sn, calculated considering the rated voltage and current set
on the release: Sn = √3 * Vn * In).
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 (in reference to the curve, it
is the part parallel to the abscissa).
Ekip Touch protection release | 10 - Measuring Pro protections
ABB | SACE Emax 2