Page 144 - Sace Emax 2 Manual for design engineers

ABB | SACE Emax 2
3 - IPS Interface protections

Description The IPS Interface protection function allows faults to be managed in installations which are able to function
thanks to the energy produced by renewable and local energy sources, especially the absence of power
supply, e.g. caused by a fault on the MV voltage side.
The function is available for all the Ekip Hi-Touch Trip units.
All the parameters and measurements of the function are available via Ekip Connect; however, the Trip unit
allows protection 59 S1, V DIR, V INV and control thresholds Voltage stability, Frequency stability and F W1
to be set, as described below.
IMPORTANT: consult the Technical catalog or White paper of the function for full
details (page 13, 16).

Protection 59.S1 [ANSI 59S1] The protection sends a TRIP command if the maximum mean value of the three line-to-line voltages,
calculated in a 10-minute floating menu, exceeds the threshold for longer than the set time.
The Protections-Advanced menu includes the protection submenu in which the parameters can be entered:
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 The value is given as both absolute value (Volts) and relative value (Un) and 1,1 Un
can be set within the range: 1 Un to 1.3 Un, in 0.05 Un steps
This is the trip time of the protection; the value is given in seconds and can
Time 3 s
be set within a range: 3 s to 999 s, in 3 s steps

Limitations and additional functions
The block functions can also be accessed by means of the service connector (via Ekip Connect) or
communication via system bus (page 83).

Protection V DIR [ANSI 27VD] If the positive sequence measured by the Trip unit exceeds or falls below threshold Upos (depending on the
direction set), the corresponding alarm will be activated (no TRIP).The Protections-Advanced menu includes
the protection submenu in which the parameters can be entered:
Parameter Description Default
Activates/deactivates the control threshold of the parameters and their
Enable Off
availability in the menu
Defines whether sequence monitoring is performed after the measured
Direction Down
sequence has dropped (Down) or been exceeded (Up)
Establishes the value that activates the alarm.
Threshold The value is given as both absolute value (Volts) and relative value (Un) and 0,8 Un
can be set within the range: 0.1 Un to 1.5 Un in 0.05 Un steps

Protection V INV [ANSI 59VI] If the negative sequence measured by the Trip unit exceeds or falls below threshold Uneg, the corresponding
alarm will be activated (no TRIP).
The Protections-Advanced menu includes the protection submenu in which the parameters can be entered:
Parameter Description Default
Activates/deactivates monitoring of the parameters and their availability in
Enable Off
the menu
Establishes the value that activates the alarm. The value is given as both
Threshold absolute value (Volts) and relative value (Un) and can be set within the range: 0,05 Un
0.05 Un to 0.5 Un in 0.05 Un steps

142 | © 2020 ABB | 1SDH001330R1002 - ECN000134959 - Rev. A Ekip Touch - Additional functions | 3 - IPS Interface protections