Uv Protection; Ov Protection - ABB SACE Emax E1.2 Operating Instructions For The Design Engineer

UV Protection

t
U8
t8

OV Protection

t
OV
U9
t9
76 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A
Path
Main page - Menu - Advanced
UV
Function
UV protection trips when the phase-to-phase voltage drops below the set threshold.
If at least one line-to-line voltage drops below the activation threshold, the protection trips within a fixed time
set by the user.
Parameters
v
Here is a list of the available parameters:
Parameter
Enable
Threshold U8
Time t8
UV 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
Function
OV protection trips when the phase-to-phase voltage rises above the set threshold.
If at least one line-to-line voltage rises above the activation threshold, the protection trips within a fixed time
set by the user.
Parameters
Here is a list of the available parameters:
V
Parameter
Enable
Threshold U9
Time t9
OV 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 voltage value below 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 (Volts) and a relative value (Un,
nominal value defined on the trip unit).
The delay time between the exceeding of the U8 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 voltage 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 (Volts) and a relative value (Un,
nominal value defined on the trip unit).
The delay time between the exceeding of the U9 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