100
Line differential protection (DIFL)
&KDSWHU
9HULI\LQJVHWWLQJVE\VHFRQGDU\
LQMHFWLRQ
(Equation 5)
(Equation 6)
(Equation 7)
The test is performed by injecting a single and a symmetrical three-phase current. If the
optional charging current compensation function is included, the CCComp shall be Off
and no measuring voltage connected to the terminal.
7HVWLQJWKHOLQHGLIIHUHQWLDOSURWHFWLRQ
3URFHGXUH
%ORFNWKHWULSVLJQDO
The blocking can
QRW
be done by the COMBITEST test switch. It
has to be made on the station side of the test switch.
6HWWKHSURWHFWLRQLQWHVWPRGH0,XQLW
The TestMode is found in the menu under:
7HVW7HVW0RGH2SHUDWLRQ
The
7HVW0RGH
command must be saved in order to be activated.
When the protection is equipped with COMBITEST test switch,
the test mode is automatically activated but not saved when the test
handle is inserted.
3UHSDUHWKHWHUPLQDOIRUYHULILFDWLRQRIVHWWLQJVDVRXWOLQHGLQ
VHFWLRQ³3UHSDUHIRUWHVW´LQWKLVFKDSWHU
6HWWKH'LVWXUEDQFHUHSRUWWR2II
This command is found in the menu under:
I
Diff
I
Local
I
Remote
+
=
I
Bias
I
Local
I
Remote
+
2
-------------------------------------------
=
I
Bias
(
)
Evaluate
Max
I
Bias
(
)
Own phase
[
]
OR 0.5
I
Bias
(
)
Other phases
⋅
[
]
{
}
=
Содержание REL 531
Страница 16: ...10 Note signs KDSWHU 6DIHW LQIRUPDWLRQ ...
Страница 44: ...38 Checking the binary I O circuits KDSWHU KHFNLQJ WKH H WHUQDO FLUFXLWU ...
Страница 52: ...46 Checking the self supervision signals KDSWHU QHUJLVLQJ WKH WHUPLQDO ...
Страница 132: ...126 Two step time delayed phase overcurrent protection TOC2 KDSWHU 9HULI LQJ VHWWLQJV E VHFRQGDU LQMHFWLRQ ...
Страница 136: ...130 Testing the interaction of the distance protection KDSWHU 9HULI LQJ WKH LQWHUQDO FRQILJXUDWLRQ ...
Страница 140: ...134 Testing the interaction of the distance protection KDSWHU 7HVWLQJ WKH SURWHFWLRQ V VWHP ...
