ABB RET670 Installation And Commissioning Manual

U-Bus1
U
-Line1
N
Test
equipment
IED
U3PBB1
N
IEC05000481-3-en.vsd
N
UMeasure
P
h/N
Ph/Ph
U-Bus2
U
-Line2
U3PBB2
U3PLN2
U3PLN1
IEC05000481 V3 EN
Figure 67: General test connection for a 1½ breaker diameter with one-phase
voltage connected to the line side
13.11.1.1 Testing the synchronizing function
This section is applicable only if the synchronizing function is included.
The voltage inputs used are:
UP3LN1 UL1, UL2 or UL3 line 1 voltage inputs on the IED
UP3BB1 Bus1 voltage input on the IED
Testing the frequency difference
The frequency difference is in the example set at 0.20 Hz on the local HMI, and the
test should verify that operation is achieved when the FreqDiffMax frequency
difference is lower than 0.20 Hz. The test procedure below will depend on the
settings used.
1.
Apply voltages
Section 13 1MRK 504 088-UEN C
Verifying settings by secondary injection
176
Installation and 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