Basic Ied Functions; Differential Protection; 1Ph High Impedance Differential Protection Hzpdif (87) - ABB RED670 Product Manual

Line differential protection RED670 ANSI
Customized
Product version: 1.2

Basic IED functions

IEC 61850
Basic functions included in all products
IntErrorSig
TIME
TimeSynch
ActiveGroup
Test
ChangeLock
TerminalID
Productinfo
MiscBaseCommon
IEDRuntimeComp
RatedFreq
SMBI
SMBO
SMMI
SMAI
Sum3Ph
LocalHMI
LocalHMI
AuthStatus
AuthorityCheck
AccessFTP
SPACommMap
DOSFRNT
DOSOEMAB
DOSOEMCD

3. Differential protection

1Ph High impedance differential protection HZPDIF (87)

The 1Ph High impedance differential protection (HZPDIF, 87)
function can be used when the involved CTs have the same
turns ratio and similar magnetizing characteristics. It utilizes an
external CT current summation by wiring, a series resistor, and
ABB
Function description
Self supervision with internal event list
Time and synchronization error
Time synchronization
Parameter setting groups
Test mode functionality
Change lock function
IED identifiers
Product information
Misc Base Common
IED Runtime Comp
Rated system frequency
Signal Matrix for binary inputs
Signal Matrix for binary outputs
Signal Matrix for mA inputs
Signal Matrix for analog inputs
Summation block 3 phase
Parameter setting function for HMI in PCM600
Local HMI signals
Authority status
Authority check
FTP access with password
SPA communication mapping
Denial of service, frame rate control for front port
Denial of service, frame rate control for OEM port AB
Denial of service, frame rate control for OEM port CD
a voltage dependent resistor which are mounted externally
connected to the IED.
HZPDIF (87) can be used to protect tee-feeders or busbars. Six
single phase function blocks are available to allow application
for two three-phase zones busbar protection.
1MRK505226-BUS D
1
1
1
1
1
1
1
1
1
1
1
40
40
4
36
18
1
1
1
1
1
1
1
1
1
9