Current Protection; Voltage Protection; Frequency Protection; Multipurpose Protection - ABB RET670 Product Manual

ABB
Transformer protection RET670
Customized
Product version: 1.2
Back-up protection functions
IEC 61850 ANSI

Current protection

PHPIOC 50
OC4PTOC 51_67
EFPIOC 50N
EF4PTOC 51N_67
N
NS4PTOC 46I2
SDEPSDE 67N
LPPTR 26
TRPTTR 49
CCRBRF 50BF
CCRPLD 52PD
GUPPDUP 37
GOPPDOP 32
BRCPTOC 46
CBPGAPC
NS2PTOC 46I2

Voltage protection

UV2PTUV 27
OV2PTOV 59
ROV2PTOV 59N
OEXPVPH 24
VDCPTOV 60
LOVPTUV 27

Frequency protection

SAPTUF 81
SAPTOF 81
SAPFRC 81

Multipurpose protection

CVGAPC
Function description
Instantaneous phase overcurrent protection
Four step phase overcurrent protection
Instantaneous residual overcurrent protection
Four step residual overcurrent protection
Four step directional negative phase sequence overcurrent
protection
Sensitive directional residual overcurrent and power protection
Thermal overload protection, one time constant
Thermal overload protection, two time constant
Breaker failure protection
Pole discordance protection
Directional underpower protection
Directional overpower protection
Broken conductor check
Capacitor bank protection
Negative sequence time overcurrent protection for machines
Two step undervoltage protection
Two step overvoltage protection
Two step residual overvoltage protection
Overexcitation protection
Voltage differential protection
Loss of voltage check
Underfrequency protection
Overfrequency protection
Rate-of-change frequency protection
General current and voltage protection
1MRK 504 117-BEN D
Transformer
RET670
0-8
0-8
0-8
0-8
0-8
0-3
0–2
0-6
0-6
0-2
0-2
0-2
1
0-6
0-2
0-3
0-3
0-3
0-2
0-2
1
0-6
0-6
0-6
0-12
5