Main Protection Functions; Back-Up Protection Functions - ABB Relion 670 Series Applications Manual

Section 2
Application
It is normal practice to have just one busbar protection IED per busbar. Nevertheless some utilities
do apply two independent busbar protection IEDs per zone of protection. This IED fits both
solutions.
A simplified bus differential protection for multi-phase faults and ground faults can be obtained
by using a single, one-phase IED with external auxiliary summation current transformers.
Forcing of binary inputs and outputs is a convenient way to test wiring in substations as well as
testing configuration logic in the IEDs. Basically it means that all binary inputs and outputs on the
IED I/O modules (BOM, BIM, IOM & SOM) can be forced to arbitrary values.
Central Account Management is an authentication infrastructure that offers a secure solution for
enforcing access control to IEDs and other systems within a substation. This incorporates
management of user accounts, roles and certificates and the distribution of such, a procedure
completely transparent to the user.
The Flexible Product Naming allows the customer to use an IED-vendor independent 61850 model
of the IED. This customer model will be exposed in all IEC 61850 communication, but all other
aspects of the IED will remain unchanged (e.g., names on the local HMI and names in the tools).
This offers significant flexibility to adapt the IED to the customers system and standard solution
2.2

Main protection functions

Table 2:
2
0-3
3-A03
IEC 61850 ANSI
Differential protection
HZPDIF 87
2.3

Back-up protection functions

IEC 61850 ANSI
Current protection
PHPIOC 50
OC4PTOC
1)
51_67
PH4SPTOC 51
EFPIOC 50N
EF4PTOC 51N
2)
67N
Table continues on next page
34
Example of quantities
= number of basic instances
= option quantities
= optional function included in packages A03 (refer to ordering details)
Function description
1Ph high impedance differential protection
Function description
Instantaneous phase overcurrent protection
Four step phase overcurrent protection
Four step single phase overcurrent protection
Instantaneous residual overcurrent protection
Four step residual overcurrent protection
GUID-66BAAD98-851D-4AAC-B386-B38B57718BD2 v12.1.1
Bay control
REC670
(Customized)
0-6
GUID-A8D0852F-807F-4442-8730-E44808E194F0 v10
REC670
(Customized)
0-6
0-6
0-6
0-6
Application manual
1MRK 511 358-UUS A