4.1.3.9
Technical data
Table 266:
51V Technical data
Characteristic
Value
Operation accuracy
Depending on the frequency of the measured
current and voltage:
f
n
±2 Hz
Current:
±1.5% of the set value or ± 0.002 × I
n
Voltage:
±1.5% of the set value or ±0.002 × V
n
Pickup time
1)2)
Typically 26 ms
Reset time
Typically 40 ms
Reset ratio
Typically 0.96
Trip time accuracy in definite time mode
±1.0% of the set value or ±20 ms
Trip time accuracy in inverse time mode
±5.0% of the set value or ±20 ms
Suppression of harmonics
-50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
1)
Measurement mode = default, current before fault = 0.0 × I
n
, f
n
= 50 Hz, fault current in one phase with
nominal frequency injected from random phase angle, results based on statistical distribution of 1000
measurements
2) Includes the delay of the signal output contact
4.1.4
Three-phase thermal protection for feeders, cables and
distribution transformers 49F
4.1.4.1
Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Three-phase thermal protection for
feeders, cables and distribution
transformers
T1PTTR
3Ith>F
49F
Section 4
1MAC059074-MB A
Protection functions
268
615 series ANSI
Technical Manual
Содержание Relion 615 series
Страница 1: ... RELION PROTECTION AND CONTROL 615 series ANSI Technical Manual ...
Страница 2: ......
Страница 39: ...Section 17 Glossary 1181 Table of contents 615 series ANSI 33 Technical Manual ...
Страница 40: ...34 ...
Страница 64: ...58 ...
Страница 210: ...3 19 4 Settings Section 3 1MAC059074 MB A Basic functions 204 615 series ANSI Technical Manual ...
Страница 216: ...210 ...
Страница 884: ...878 ...
Страница 1038: ...1032 ...
Страница 1136: ...1130 ...
Страница 1172: ...1166 ...
Страница 1180: ...1174 ...
Страница 1186: ...1180 ...
Страница 1192: ...1186 ...
Страница 1193: ...1187 ...
Страница 1194: ......
Страница 1195: ......