ABB RET670 Commissioning Manual

Test point Reach Set value Comments
9 X –0.4 x RLdFwd x tan(ArgDir=20°)
R 0.4 x RLdFwd
10 X 0.5 x X1
set
Exact –0.5 x R1
set
x tan(ArgNegRes=30°)
R –0.23 x X1
set
11 X 0.8 x X1
set
Exact –0.5 x R1
set
x tan(ArgNegRes=30°)
R –0.37 x X1
set
12 X 0.5 x X1
set
R 0.5 x R1
set
13 X 0
R 0.5 x RFPPZx
Table 30 is used in conjunction with figure 35.
50%
80%
1
2
3
4
5
6
7
8
9
10
11
80% of RLdFwd
40% of RLdFwd
RFPG
12
ANSI05000369-2-en.vsd
13
a
alt. 80% of
RFPG (Load
encroachment)
120°
20°
ANSI05000369 V2 EN
Figure 36: Distance protection characteristic with test points for phase-to-ground
measurements
Table 31 is used in conjunction with figure 36.
1MRK 504 165-UUS - Section 11
Testing functionality by secondary injection
Transformer protection RET670 2.2 ANSI 139
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