Table 172. Current functions
Function
Function
identification
Ordering no
Positi
on
Available
qty
Selected
qty
Notes
and rules
Instantaneous phase overcurrent protection
PHPIOC
1MRK005910-AC
1
0-8
Four step phase overcurrent protection
OC4PTOC
1MRK005910-BB
2
0-8
Instantaneous residual overcurrent protection
EFPIOC
1MRK005910-DC
4
0-8
Four step residual overcurrent protection
EF4PTOC
1MRK005910-EC
5
0-8
Four step directional negative phase sequence overcurrent
protection
NS4PTOC
1MRK005910-FB
6
0-8
Sensitive Directional residual over current and power protetcion
SDEPSDE
1MRK005910-GA
7
0-3
Thermal overload protection, one time constant, Celcius
LCPTTR
1MRK005911-BA
8
0-2
Thermal overload protection, one time constant, Fahrenheit
LFPTTR
1MRK005911-AA
9
0-2
Thermal overload protection, two time constants
TRPTTR
1MRK005910-HB
10
0-6
Breaker failure protection
CCRBRF
1MRK005910-LA
11
0-6
Pole discordance protection
CCPDSC
1MRK005910-PA
14
0-2
Directional Underpower protection
GUPPDUP
1MRK005910-RA
15
0-2
Directional Overpower protection
GOPPDOP
1MRK005910-TA
16
0-2
Broken conductor check
BRCPTOC
1MRK005910-SA
17
1
Capacitor bank protection
CBPGAPC
1MRK005910-UA
18
0-6
Negativ sequence time overcurrent protection for machines
NS2PTOC
1MRK005910-VA
19
0-2
Voltage restrained overcurrent protection
VRPVOC
1MRK005910-XA
21
0-3
Table 173. Voltage protection
Position
1
2
3
4
5
6
7
8
D
0
1
0
Table 174. Voltage functions
Function
Function
identification
Ordering no
Positi
on
Available
qty
Selected
qty
Notes
and rules
Two step undervoltage protection
UV2PTUV
1MRK005912-AA
1
0-3
Two step overvoltage protection
OV2PTOV
1MRK005912-BA
2
0-3
Two step residual overvoltage protection
ROV2PTOV
1MRK005912-CC
3
0-3
Overexcitation protection
OEXPVPH
1MRK005912-DA
4
0-2
Voltage differential protection
VDCPTOV
1MRK005912-EA
5
0-2
Loss of voltage check
LOVPTUV
1MRK005912-GA
7
1
Table 175. Frquency protection
Position
1
2
3
4
E
00
Table 176. Frequency functions
Function
Function
identification
Ordering no
positi
on
Available
qty
Selected
qty
Notes
and rules
Underfrequency protection
SAPTUF
1MRK005914-AA
1
0-6
Overfrequency protection
SAPTOF
1MRK005914-BA
2
0-6
Rate-of-change frequency protection
SAPFRC
1MRK005914-CA
3
0-6
Table 177. Multipurpose protection
Position
1
F
Table 178. Multipurpose functions
Function
Function
identification
Ordering no
Positi
on
Available
qty
Selected
Qty
Notes
and rules
General current and voltage protection
CVGAPC
1MRK005915-AA
1
0-9
1MRK 504 155-BEN F
Transformer protection RET670 2.1 IEC
ABB
127
Содержание Relion 670 series
Страница 1: ...RELION 670 SERIES Transformer protection RET670 Version 2 1 Product guide...
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