ComAp InteliMains NT IM-NT, Reference Manual

Page: 217 / 437

InteliMains
NT
, SW version 3.2.0
InteliMains-NT-MCB-MGCB-3.2.0-Reference Guide.pdf,
©ComAp – April 2015
217
Related FW standard v3.1.0
Description This setpoint adjusts the thershold level for the vectorshift protection.
N
OTE
:
To adjust this setpoint properly, check the value Max VectorS . The value is
available on the controller screen, contains the maximal measured vectorshift
value since the bus has been synchronized to the mains and after opening of
MGCB or MCB it is "frozen". In normal conditions the value should not be
higher than 3º and the most common setting of the threshold is about 7º.
11.2.6.16 Setpoint: ROCOF prot
Group Mains protect
Range [units] DISABLED, PARALLEL ONLY, ENABLED [-]
Related FW standard v3.1.0
Force value
possible YES
Description This setpoint activates or deactivates ROCOF protection.
See also setpoints ROCOF Win , ROCOF df/dt and VS/ROCOF CB sel .
N
OTE
:
Parallel operation is in this case considered only if there is at least one
ComAp controller with closed GCB to the bus. If MCB and MGCB are closed
and there is no ComAp controller on the Bus connected via CAN2 to the
InteliMains and with closed GCB, this situation cannot be considered as
parallel operation because of the function of
MGCBparalClose .
11.2.6.17 Setpoint: ROCOF Win
Group Mains protect
Range [units] 3 .. 30 [-]
Related FW standard v3.1.0
Description This setpoint adjusts the averaging level for the ROCOF protection. It defines
number of periods of the mains voltage in which the ROCOF protection is
evaluated. The higher is the ROCOF Win the less sensitive is the protection
for short oscillations of the frequency to both directions from the nominal
value and the higher is the delay of evaluation.