ABB RELION RET670 User Manual

RFPGZm
X1Zm+XNZm
X1Zm+XNZm
RFPGZm
R1Zm+RN
RFPGZm
RFPGZm
R
X
PHS
Zm
90°
R1Zm+RN
X1PHS+XNPHS
X1PHS+XNPHS
RFFwdPGPHS
RFRevPGPHS
loopφ
loopφ
ANSI08000435-1-en.vsd
(Ohm/loop)
1 PHS PHSR PG RN+
(Minimum setting)
0 1
3
PHS PHS
PHS
R PG R PG
RN
-
=
ANSI08000435 V1 EN-US
Figure 167: Relation between measuring zone and FRPSPDIS (21) characteristic
Reactive reach
GUID-8C693495-10FA-47D5-BEFC-E72C8577E88B v1
The reactive reach in forward direction must as minimum be set to cover the measuring
zone used in the Teleprotection schemes, mostly zone 2. Equation
241 and
equation 242 gives the minimum recommended reactive reach.
These recommendations are valid for both 60 and 90 deg. characteristic angle.
PHS Zm
X1 1.44 X1³ ×
EQUATION1309 V1 EN-US (Equation 241)
1MRK 504 163-UUS A Section 8
Impedance protection
Transformer protection RET670 2.2 ANSI 353
Application manual

ABB RELION RET670 Specifications

General

Rated Frequency	50/60 Hz
Communication Protocols	IEC 61850, IEC 60870-5-103, DNP3
Operating Temperature Range	-25°C to +55°C
Mounting	Rack Mounting
Input Voltage	100-240 V AC
Protection Functions	Overcurrent Protection
Enclosure	IP20