Mcr Protection - ABB SACE Emax 2 Series Installation, Operation And Maintenance Instructions

MCR Protection

t
I3
MCR
89 | © 2013 ABB | 1SDH001000R0002 - L7804
Path
Main page - Menu - Advanced protections
Function
The MCR protection has the same characteristics as the protection I, with some variations:
• It acts only within an interval calculated from the closing of the circuit-breaker.
• It only works with auxiliary power supply or Ekip Measuring Pro module (with voltage
sockets energized).
When the activation threshold is exceeded, the protection trips within a fixed non-adjustable
time. The user can set the activation threshold.
I
Parameters
The following is a description of the parameters:
Parameter Description
Activates/deactivates the protection.
Enabling
It defines the current value that if exceeded activates the protection
(in reference to the curve, it is the part of the curve parallel to the
Threshold (I3) ordinate).
It is represented both as an absolute value (Ampere) and as a relative
value (In, nominal value defined by the Rating Plug).
It defines the time interval for which the protection is active, starting
Trip Time
from the closing of the circuit-breaker.
IMPORTANT: it can be only activated if the protection is
deactivated.
ABB | SACE Emax 2
Ekip Touch protection release | 9 - Touch protections