110
6
F
2
S
0
8
5
0
Scheme logic
The scheme logic for the stub protection is shown in Figure 2.13.2.1. The stub protection
performs three-phase tripping on the condition that the line disconnector is open
(DS_N/O_CONT = 0) and the overcurrent element has operated (OCH = 1). CB condition
(STUB_CB) can be added by using programmable BI function (PLC function). Tripping can be
disabled by the scheme switch [STUB-OC].
[STUB-OC]
"ON"
OCH
STUB-OC_TRIP
(M-TRIP)
&
1
1
812
DS_N/O_CONT
1542
STUB_CB
1985
STUBOC_BLOCK
1900
599 OCH-A
600 OCH-B
601 OCH-C
OCHTP_ON
1986
OCH_BLOCK
1902
&
&
821 OCH_TRIP
822 OCH-A_TRIP
823 OCH-B_TRIP
824 OCH-C_TRIP
OCH_TRIP
Figure 2.13.2.1 Stub Protection Scheme Logic
2.13.3 Setting
The setting elements necessary for the stub protection and their setting ranges are as follows:
Element Range
Step Default Remarks
STUB
OFF/ON
OFF
STUB DIF protection
OCH
2.0 - 10.0 A
0.1 A
6.0 A
Overcurrent setting for STUB OC
(0.4 - 2.0 A
0.1 A
1.2 A) (*)
STUB-OC
OFF/ON
OFF
STUB OC protection
(*) Current values shown in the parentheses are in the case of 1 A rating. Other current values are in
the case of 5 A rating.
The OCH element and its setting are common with the SOTF protection.
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Содержание GRL100-701B
Страница 288: ... 287 6 F 2 S 0 8 5 0 Appendix A Block Diagram w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 290: ... 289 6 F 2 S 0 8 5 0 Appendix B Signal List w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 324: ... 323 6 F 2 S 0 8 5 0 Appendix C Variable Timer List w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
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Страница 348: ... 347 6 F 2 S 0 8 5 0 Appendix G Typical External Connection w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
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Страница 388: ... 387 6 F 2 S 0 8 5 0 Appendix J Return Repair Form w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 394: ... 393 6 F 2 S 0 8 5 0 Appendix K Technical Data w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 410: ... 409 6 F 2 S 0 8 5 0 Appendix L Symbols Used in Scheme Logic w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
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Страница 414: ... 413 6 F 2 S 0 8 5 0 Appendix M Multi phase Autoreclose w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
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Страница 418: ... 417 6 F 2 S 0 8 5 0 Appendix N Data Transmission Format w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 424: ... 423 6 F 2 S 0 8 5 0 Appendix O Example of Setting w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 440: ... 439 6 F 2 S 0 8 5 0 Appendix Q IEC60870 5 103 Interoperability w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
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Страница 454: ... 453 6 F 2 S 0 8 5 0 Appendix R Inverse Time Characteristics w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
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Страница 464: ... 463 6 F 2 S 0 8 5 0 Appendix T PLC Setting Sample w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 468: ... 467 6 F 2 S 0 8 5 0 Appendix U Ordering w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
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