ABB RED615 ANSI, Руководство по эксплуатации продукта

Страница: 19 / 68

RED615 RED615
Fibre-optic line differential
communication link
Protection communication and supervision
Binary signal transfer
GUID-8CE71CC9-F0EA-4BE9-B693-173CAEA9FA58 V1 EN
Figure 10. Fibre-optic protection communication link
RED615 RED615
Pilot wire line differential
communication link
Protection communication and supervision
Binary signal transfer
RPW600
modem
RPW600
modem
GUID-12C57326-6CB9-4FA9-B9F4-3D8F21015DCF V1 EN
Figure 11. Pilot wire protection communication link
16. Access control
To protect the IED from unauthorized access and
to maintain information integrity, the IED is
provided with a four-level, role-based
authentication system with administrator-
programmable individual passwords for the
viewer, operator, engineer and administrator level.
The access control applies to the front-panel user
interface, the web-browser based user interface
and the PCM600 tool.
17. Inputs and outputs
Depending on the standard configuration
selected, the IED is equipped with three phase-
current inputs and one residual-current input for
non-directional earth-fault protection and current
circuit supervision, or three phase-current inputs,
one residual-current input and one residual
voltage input for directional earth-fault protection
and current circuit supervision.
The phase-current inputs are rated 1/5 A. Two
optional residual-current inputs are available, i.e.
1/5 A or 0.2/1 A. The 0.2/1 A input is normally
used in applications requiring sensitive earth-fault
protection and featuring core-balance current
transformers. The residual-voltage input covers
the rated voltages 60-210 V.
The phase-current input 1 A or 5 A, the residual-
current input 1 A or 5 A, alternatively 0.2 A or 1 A,
and the rated voltage of the residual voltage input
are selected in the IED software. In addition, the
binary input thresholds 18…176 V DC are
selected by adjusting the IED’s parameter
settings.
Line Differential Protection and Control 1MRS756500 F
RED615
Product version: 4.0
ABB 19