ABB REF615 L User Manual

Table 374: PREVPTOC Non group settings
Parameter Values (Range) Unit Step Default Description
Operation 1=on
5=off
1=on Operation Off / On
4.4.3.8 Monitored data
Table 375: PREVPTOC Monitored data
Name Type Values (Range) Unit Description
START_DUR FLOAT32 0.00...100.00 % Ratio of start time /
operate time
PREVPTOC Enum 1=on
2=blocked
3=test
4=test/blocked
5=off
Status
4.4.3.9 Technical data
Table 376: PREVTOC Technical data
Characteristic
Value
Operation accuracy Depending on the frequency of the current
measured: f
n
±2 Hz
±1.5% of the set value or ±0.002 x I
n
Start time
1)2)
Minimum Typical Maximum
I
Fault
= 2.0 x set Start
value
22 ms 24 ms 25 ms
Reset time < 40 ms
Reset ratio Typical 0.96
Retardation time < 35 ms
Operate time accuracy in definite time mode ±1.0% of the set value or ±20 ms
Suppression of harmonics DFT: -50 dB at f = n x f
n
, where n = 2, 3, 4, 5,…
1) Negative-sequence current before = 0.0, f
n
= 50 Hz, results based on statistical distribution of 1000
measurements
2) Includes the delay of the signal output contact
4.4.4 Negative-sequence overcurrent protection for motors
MNSPTOC
4.4.4.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Negative-sequence overcurrent
protection for motors
MNSPTOC I2>M 46M
1YHT530004D05 D Section 4
Protection functions
615 series 459
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