Voltage Protections - ABB SACE Emax 2 Series Operating Instructions Manual

3 - Voltage protections

UV Protection
t
U8
t8
65 | © 2023 ABB | 1SDH001330R1002 - ECN000297030
List The Voltage protections, available by default for Ekip Hi-Touch, Ekip G Touch, Ekip G-Hi Touch models and
configurable in the remaining models as additional SW package, are:
Name
UV
OV
UV2
(1)
OV2 (1)
Phase Sequence
VU
protections UV2 and OV2 are not available by default with Ekip G Touch. However, they can be
(1)
integrated by requesting the relative SW package
Function
The protection sends a TRIP command if one or more line-to-line voltages detected by the unit drop
below threshold U8 for longer than t8.
UV
To check and simulate the trip times in relation to all the parameters, please consult:
• summary table of the protections with the operating characteristics (page 96)
• the graph with trip curve (page 105)
Parameters
v
Parameter Description
Activates/deactivates the protection and its availability in the
Enable
parameters menu
Activates/deactivates transmission of the open command: if disabled,
Trip Enable the alarm and exceedance of protection time are only managed as
information
Establishes the value that activates the protection.
Threshold
The value is given as both absolute value (Volts) and relative value (Un)
U8
and can be set within the range: 0.05 Un to 1 Un in 0.001 Un steps
This is the trip time of the protection; the value is given in seconds
Time t8
and can be set within a range: 0.05 s to 120 s, in 0.01 s steps
Limitations and additional functions
The block functions can also be accessed by means of the service connector (via Ekip Connect) or by
connection to the system bus (page 86).
Type of protection
Minimum voltage
Maximum voltage
Minimum voltage
Maximum voltage
Phase sequence error
Voltage unbalance
ABB | SACE Emax 2
Page
65
66
66
67
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67
Default
OFF
OFF
0,9 Un
5 s
Ekip Touch - Protections
3 - Voltage protections