Technical data - Arc protection - Motor protection - Feeder protection - Back-up protection - Technical Manual - REX610 Protection and control - Relion Protection and Control - 1.2 - IEC - ANSI - 03.05.2023

REX610 Technical Manual

Table 1. DPHxPDOCTechnical data

Characteristic

Value

Operation accuracy

DPHLPDOC

Depending on the frequency of the measured current: fn ±2 Hz

Current:

±1.5% of the set value or ±0.002 × In 1

±1.5% of the set value or ±0.007 × In 2

Voltage:

±1.5% of the set value or ±0.002 × Un

Phase angle: ±2°

DPHHPDOC

Current:

±1.5% of the set value or ±0.002 × In 1

±1.5% of the set value or ±0.007 × In 2

(at currents in the range of 0.1…10 × In)

±5.0 % of the set value

(at currents in the range of 10…40 × In)

Voltage:

±1.5% of the set value or ±0.002 × Un

Phase angle: ±2°

Start time 3, 4

IFault = 2 × set Start value

Minimum

Typical

Maximum

28 ms

35 ms

42 ms

Reset time

Typically 40 ms

Reset ratio

Typically 0.96

Retardation time

<45 ms

Operate time accuracy in definite time mode

±1.0% of the set value or ±40 ms

Operate time accuracy in inverse time mode

±5.0% of the theoretical value or ±50 ms 5

Suppression of harmonics

DFT: -50 dB at f = n × fn, where n = 2, 3, 4, 5,…

1 Measurement mode = "RMS", "DFT" and "Peak-Peak" mode with CT secondary >0.2 A
2 Measurement mode = "Peak-to-peak", CT Secondary <0.2 A
3 Measurement mode and Pol quantity = default, current before fault = 0.0 × In, voltage before fault = 1.0 × Un, fn = 50 Hz, fault current in one phase with nominal frequency injected from random phase angle, results based on statistical distribution of 1000 measurements
4 Includes the delay of the signal output contact (SO)
5 Maximum Start value = 2.5 × In, Start value multiples in the range of 1.5...20