![background image](http://html.mh-extra.com/html/abb/relion-615-series/relion-615-series_technical-manual_2395556.webp)
Characteristic
Value
Retardation time
<35 ms
Trip time accuracy in definite time mode
±1.0% of the set value or ±20 ms
Suppression of harmonics
DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5, …
1) Current before fault = 0.0, f
n
= 50 Hz, results based on statistical distribution of 1000 measurements
2) Includes the delay of the signal output contact
4.3.3.10
Technical revision history
Table 450:
87LOZREF Technical revision history
Technical revision
Change
B
Unit for setting
Pickup value 2.H changed from %In
to %.
C
Internal Improvement.
4.3.4
High-impedance differential protection 87A, 87B, 87C
4.3.4.1
Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
High-impedance differential protection
for phase A
HIAPDIF
dHi_A>
87A
High-impedance differential protection
for phase B
HIBPDIF
dHi_B>
87B
High-impedance differential protection
for phase C
HICPDIF
dHi_C>
87C
4.3.4.2
Function block
TRIP
PICKUP
87A
BLOCK
I_A
TRIP
PICKUP
87B
BLOCK
I_B
TRIP
PICKUP
87C
BLOCK
I_C
GUID-936A0B51-A681-4814-A3C8-742DDC670FCF V1 EN
Figure 276:
Function block
Section 4
1MAC059074-MB A
Protection functions
550
615 series ANSI
Technical Manual
Summary of Contents for Relion 615 series
Page 1: ... RELION PROTECTION AND CONTROL 615 series ANSI Technical Manual ...
Page 2: ......
Page 39: ...Section 17 Glossary 1181 Table of contents 615 series ANSI 33 Technical Manual ...
Page 40: ...34 ...
Page 64: ...58 ...
Page 216: ...210 ...
Page 884: ...878 ...
Page 1038: ...1032 ...
Page 1136: ...1130 ...
Page 1172: ...1166 ...
Page 1180: ...1174 ...
Page 1186: ...1180 ...
Page 1192: ...1186 ...
Page 1193: ...1187 ...
Page 1194: ......
Page 1195: ......