•
Sub-synchronous resonance protection for turbo generators
•
Sub-synchronous protection for wind turbines/wind farms
•
Detection of sub-synchronous oscillation between HVDC links and synchronous
generators
•
Super-synchronous protection
•
Detection of presence of the geo-magnetic induced currents
•
Overcurrent or overvoltage protection at specific frequency harmonic, sub-
harmonic, inter-harmonic etc.
•
Presence of special railway frequencies (e.g. 16.7Hz or 25Hz) in the three-phase
power system
•
Sensitive reverse power protection
•
Stator or rotor earth fault protection for special injection frequencies (e.g. 25Hz)
•
etc.
The filter output can also be connected to the measurement function blocks such as
CVMMXN (Measurements), CMMXU (Phase current measurement), VMMXU
(Phase-phase voltage measurement), etc. in order to report the extracted phasor values
to the supervisory system (e.g. MicroSCADA).
The following figure shoes typical configuration connections required to utilize this
filter in conjunction with multi-purpose function as non-directional overcurrent
protection.
IEC13000179-1-en.vsd
IEC13000179 V1 EN-US
Figure 221:
Required ACT configuration
Such overcurrent arrangement can be for example used to achieve the subsynchronous
resonance protection for turbo generators.
Section 13
1MRK 502 071-UUS A
System protection and control
504
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Application manual
Summary of Contents for RELION 670 SERIES REG670
Page 1: ...RELION 670 SERIES Generator protection REG670 Version 2 2 ANSI Application manual ...
Page 2: ......
Page 44: ...38 ...
Page 66: ...60 ...
Page 102: ...96 ...
Page 200: ...194 ...
Page 442: ...436 ...
Page 486: ...480 ...
Page 508: ...502 ...
Page 514: ...508 ...
Page 524: ...518 ...
Page 658: ...652 ...
Page 736: ...730 ...
Page 774: ...768 ...
Page 828: ...822 ...
Page 829: ...823 ...