ABB RET670 Commissioning Manual

Figure 52 shows the general test connection for a breaker-and-a-half diameter with one-
phase voltage connected to the line side.
Test
equipment
VMeasure
Ph/N
Ph/Ph
ANSI05000480-3-en.vsd
V-Bus
V-Line
N
IED
V-Bus
N
VA
VB
VC
VN
Input Phase
A,B,C
AB,BC,CA
VMeasure
Ph/N
Ph/Ph
Input Phase
A,B,C
AB,BC,CA
ANSI05000480 V3 EN
Figure 51: General test connection with three-phase voltage connected to the line
side
1MRK 504 165-UUS - Section 11
Testing functionality by secondary injection
Transformer protection RET670 2.2 ANSI 237
Commissioning manual

ABB RET670 Specifications

General

Rated Frequency	50/60 Hz
Inputs	Analog and binary inputs
Application	Protection of power systems
Communication Protocols	IEC 61850, DNP3, Modbus
Operating Temperature Range	-25°C to +55°C
Mounting	Rack mounted
Number of Binary Inputs	Up to 48
Number of Binary Outputs	32
Protection Functions	Overcurrent Protection
Outputs	Binary outputs
Enclosure	IP 54
Type	Line Differential Protection
Number of Analog Inputs	24