ABB REF615 L User Manual

Table 648: VMHAI Output signals
Name Type Description
ALARM BOOLEAN Alarm signal for THD
10.2.7 Settings
Table 649: VMHAI Non group settings
Parameter Values (Range) Unit Step Default Description
Operation 1=on
5=off
1=on Operation Off / On
Demand interval 0=1 minute
1=5 minutes
2=10 minutes
3=15 minutes
4=30 minutes
5=60 minutes
6=180 minutes
2=10 minutes Time interval for demand calculation
Demand window 1=Sliding
2=Non-sliding
1=Sliding Demand calculation window type
THD alarm limit 1.0...100.0 % 0.1 50.0 THD alarm limit
10.2.8 Monitored data
Table 650: VMHAI Monitored data
Name
Type Values (Range) Unit Description
Max demand THD
UL1
FLOAT32 0.00...500.00 % Maximum demand THD
for phase A
Max demand THD
UL2
FLOAT32 0.00...500.00 % Maximum demand THD
for phase B
Max demand THD
UL3
FLOAT32 0.00...500.00 % Maximum demand THD
for phase C
Time max dmd THD
UL1
Timestamp Time of maximum
demand THD phase A
Time max dmd THD
UL2
Timestamp Time of maximum
demand THD phase B
Time max dmd THD
UL3
Timestamp Time of maximum
demand THD phase C
3SMHTHD_A FLOAT32 0.00...500.00 % 3 second mean value of
THD for phase A
DMD_THD_A FLOAT32 0.00...500.00 % Demand value for THD
for phase A
3SMHTHD_B FLOAT32 0.00...500.00 % 3 second mean value of
THD for phase B
Table continues on next page
1YHT530004D05 D Section 10
Power quality measurement functions
615 series 771
Technical Manual

ABB REF615 L Specifications

General

Type	Feeder Protection Relay
Rated Frequency	50/60 Hz
Weight	Approx. 1.5 kg
Communication Protocols	IEC 61850, Modbus RTU, DNP3
Protection Functions	Overcurrent, Earth fault, Thermal overload, Under/Over voltage, Under/Over frequency
Enclosure	IP20