ABB SACE Emax E4.2 Operating Instructions

ABB | SACE Emax 2
Ekip Touch - Protections
4 - Voltage Advanced protections
68 | © 2023 ABB | 1SDH001330R1002 - ECN000297030
4 - Voltage Advanced protections
List
The Advanced Voltage protections, available by default for the Ekip G Touch and Ekip G Hi-Touch models
and configurable in the remaining models as additional SW package, are:
Name Type of protection Page
S(V)
Short-circuit with voltammetric
control
68
S2(V)
(1)
Short-circuit with voltammetric
control
69
RV Residual voltage 71
(1)
S2(V) protection is not available by default with Ekip G Touch. However, it can be integrated by
requesting the relative SW package
S(V) Protection
I20
t
t20
I
S(V)
Function
S(V) protection protects against short circuits, with a threshold sensitive to the value of the voltage.
If the current of one or more phases exceeds threshold I20 for longer than time t20, the protection
activates and sends a TRIP command.
Following a voltage drop, the I20 threshold varies according to two different modes:
• Step provides for a stepped variation, depending on parameters Ul and Ks.
• Lin (linear) provides for a dynamic variation, depending on parameters Ul, Uh and Ks.
V
I20
Ks x I20
Uh
UI
V
I20
I20 I20
Ks x I20
Ul
Figure 23
To check and simulate the trip times in relation to all the parameters, please consult:
• the summary table of the protections with the calculation formulas (page 96)
• the graph with trip curve (page 107)
Parameters
Parameter Description Default
Enable
Activates/deactivates the protection and its availability in the
parameters menu
OFF
Trip Enable
Activates/deactivates transmission of the open command: if
disabled, the alarm and exceedance of protection time are only
managed as information
OFF
Curve Allows the operating mode, Step or Lin, to be selected Scal
Threshold I20
Establishes the value that activates the protection and
contributes towards calculating the trip time.
The value is given as both absolute value (amperes) and relative
value (In) and can be set within the range: 0.6 In to 10 In, in 0.1 In
steps
1 In
Continued on the next page

ABB SACE Emax E4.2 Specifications

General

Brand	ABB
Model	SACE Emax E4.2
Category	Circuit breakers
Language	English