ABB RET670 Commissioning Manual

The voltage difference between the voltage connected to V-Bus and V-Line should
be 0%, so that the AUTOSYOK and MANSYOK outputs are activated first.
2. Change the V-Line voltage connection to V-Line2 without changing the setting on
the local HMI. Check that the two outputs are not activated.
11.10.1.3 Testing the energizing check
During the test of the energizing check function for a single bay arrangement, these
voltage inputs are used:
V-Line VA, VB or VC line1 voltage inputs on the IED
V-Bus Bus voltage input on the IED
General
When testing the energizing check function for the applicable bus, arrangement shall be
done for the energizing check functions. The voltage is selected by activation of different
inputs in the voltage selection logic.
Live voltage level is fixed to 80% VBase and dead voltage level to fixed 40% VBase.
The test shall be performed according to the settings for the station. Test the alternatives
below that are applicable.
Testing the dead line live bus (DLLB)
The test should verify that the energizing check function trips for a low voltage on the V-
Line and for a high voltage on the V-Bus. This corresponds to the energizing of a dead line
to a live bus.
1. Apply a single-phase voltage 100% GblBaseSelBus to the V-Bus, and a single-phase
voltage 30% GblBaseSelLine to the V-Line.
2. Check that the AUTOENOK and MANENOK outputs are activated after set
tAutoEnerg respectively tManEnerg.
3. Increase the V-Line to 60% GblBaseSelLine and V-Bus to be equal to 100%
GblBaseSelBus. The outputs should not be activated.
4. The test can be repeated with different values on the V-Bus and the V-Line.
Testing the dead bus live line (DBLL)
The test should verify that the energizing check function trips for a low voltage on the V-
Bus and for a high voltage on the V-Line. This corresponds to an energizing of a dead bus
to a live line.
Section 11 1MRK 504 165-UUS -
Testing functionality by secondary injection
242 Transformer protection RET670 2.2 ANSI
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