Page 64 - Sace Emax 2 Manual for design engineers

ABB | SACE Emax 2
3 - Voltage protections

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 Type of protection Page
UV Minimum voltage 62
OV Maximum voltage 63
UV2 (1) Minimum voltage 63
OV2 (1) Maximum voltage 64
Phase Sequence Phase sequence error 64
VU Voltage unbalance 64

(1) protections UV2 and OV2 are not available by default with Ekip G Touch. However, they can be integrated by
requesting the relative SW package

UV Protection Function
The protection sends a TRIP command if one or more line-to-line voltages detected by the unit drop below
t threshold U8 for longer than t8.
UV
U8 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 93)
t8 • the graph with trip curve (page 102)
Parameters
v Parameter Description Default
Activates/deactivates the protection and its availability in the parameters
Enable OFF
menu
Activates/deactivates transmission of the open command: if disabled, the
Trip Enable OFF
alarm and exceedance of protection time are only managed as information
Establishes the value that activates the protection.
Threshold U8 The value is given as both absolute value (Volts) and relative value (Un) and 0,9 Un
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 and can
Time t8 5 s
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 83).

62 | © 2020 ABB | 1SDH001330R1002 - ECN000134959 - Rev. A Ekip Touch - Protections | 3 - Voltage protections