Protection Uv; Protection Ov - ABB SACE Emax 2 Series Installation, Operation And Maintenance Instructions

Protection UV

t
UV
U8
t8

Protection OV

t
OV
U9
t9
97 | © 2013 ABB | 1SDH001000R0002 - L7804
Path
Main page - Menu - Advanced protections
Function
The UV protection trips when the phase voltage drops below the set threshold.
If the voltage of at least one phase drops below the activation threshold, the protection trips
within a fixed time set by the user.
Parameters
The following is a description of the parameters:
v
Parameter
Enabling
Threshold (U8)
Time (t8)
Protection UV has Trip Enable, see page 93.
Path
Main page - Menu - Advanced protections
Function
The OV protection trips when the phase voltage rises above the set threshold.
If the voltage of at least one phase 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:
V
Parameter
Enabling
Threshold (U9)
Time (t9)
Protection OV has Trip Enable, see page 93.
Description
Activates/deactivates the protection.
Defines the voltage value below 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 (Volts) and a relative
value (Vn, nominal value defined on the release).
The delay time between the exceeding of the U8 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 voltage 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 (Volts) and a relative
value (Vn, nominal value defined on the release).
The delay time between the exceeding of the U9 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