ABB PST72 Installation And Commissioning Manual

Functions
Chapter 10
147
1SFC132003M0201
10:30 Phase imbalance protection
Path in menu:
Menu/SETTINGS/Functional Settings/
Protections/Phase Imb
If the current in one phase differs from another phase with
more than the set level the protection is activated.
The protection starts monitoring 30 seconds after full voltage,
and trips after 10 seconds of imbalance.
10:31 Phase imbalance protection level
Path in menu:
Menu/SETTINGS/Functional Settings/
Protections/Phase Imb/Ph Imb Lev
This parameter makes it possible to set the level of the phase
imbalance protection. It is active only if the Phase imbalance
protection is selected.
Parameter
text
Default value Setting range Description
Phase Imb No Yes, No Phase imbal-
ance protection
Parameter
text
Default value Setting range Description
Ph Imb Lev 80% 10...80% Trip level for
Phase imbal-
ance protection

ABB PST72 Specifications

General

Brand	ABB
Model	PST72
Category	Controller
Language	English