System Alarms
THD Protection
In order to supervise power quality, the protective device can monitor the voltage (phase-to-phase) and current
THDs.
Within the [SysA/THD] menu:
Determine if an alarm is to be issued or not (Alarm active/inactive);
Set the threshold; and
Where applicable, set a delay time for the alarm.
Device Planning Parameters of the Demand Management
Parameter
Description
Options
Default
Menu path
Mode
Mode
do not use,
use
do not use
[Device planning]
Signals of the Demand Management (States of the Outputs)
Signal
Description
active
Signal: active
ExBlo
Signal: External Blocking
Alarm Watt Power
Signal: Alarm permitted Active Power exceeded
Alarm VAr Power
Signal: Alarm permitted Reactive Power exceeded
Alarm VA Power
Signal: Alarm permitted Apparent Power exceeded
Alarm Watt Demand
Signal: Alarm averaged Active Power exceeded
Alarm VAr Demand
Signal: Alarm averaged Reactive Power exceeded
Alarm VA Demand
Signal: Alarm averaged Apparent Power exceeded
Alm Current Demd
Signal: Alarm averaged demand current
Alarm I THD
Signal: Alarm Total Harmonic Distortion Current
Alarm V THD
Signal: Alarm Total Harmonic Distortion Voltage
Trip Watt Power
Signal: Trip permitted Active Power exceeded
Trip VAr Power
Signal: Trip permitted Reactive Power exceeded
Trip VA Power
Signal: Trip permitted Apparent Power exceeded
Trip Watt Demand
Signal: Trip averaged Active Power exceeded
Trip VAr Demand
Signal: Trip averaged Reactive Power exceeded
Trip VA Demand
Signal: Trip averaged Apparent Power exceeded
Trip Current Demand
Signal: Trip averaged demand current
Trip I THD
Signal: Trip Total Harmonic Distortion Current
Trip V THD
Signal: Trip Total Harmonic Distortion Voltage
244
MCDLV4
DOK-HB-MCDLV4-2E
Summary of Contents for HighPROtec MCDLV4
Page 3: ...Order Code Order Code 3 MCDLV4 DOK HB MCDLV4 2E...
Page 47: ...Installation and Connection 47 MCDLV4 DOK HB MCDLV4 2E...
Page 164: ...Input Output and LED Settings 164 MCDLV4 DOK HB MCDLV4 2E...
Page 433: ...Parameters 433 MCDLV4 DOK HB MCDLV4 2E...
Page 457: ...Device Parameters 457 MCDLV4 DOK HB MCDLV4 2E...
Page 473: ...Blockings 473 MCDLV4 DOK HB MCDLV4 2E...
Page 988: ...Protective Elements 988 MCDLV4 DOK HB MCDLV4 2E P P Q P Q P Q Q Q P S S...
Page 989: ...Protective Elements 989 MCDLV4 DOK HB MCDLV4 2E Pr Q P Q P Qr...
Page 1023: ...Protective Elements 1023 MCDLV4 DOK HB MCDLV4 2E...