Siemens siprotec 7SA522 User Manual page 623

Direct Voltage ...................................... 10-2
Direction Determination 6-46, 6-106, 10-15
with Negative Sequence System . 6-102
with the Zero Sequence System . 6-101
Directional
Blocking Scheme ......................... 6-118
Checks with Load Current ............. 8-25
Comparison Pickup, Unblocking ... 8-34
Comparison Scheme ................... 6-114
Unblocking Scheme .................... 6-116
Disassembling the Device ..................... 9-9
Displacement Voltage ............ 6-192, 10-25
Displacement Voltage Stage ............. 6-193
Display ................................................... 4-6
in DIGSI® 4 ........................... 4-9, 4-11
of Measured Values .................... 6-247
on the Device ...................... 4-10, 4-12
Distance
Measurement .............................. 10-11
Protection .................. 1-7, 6-30, 10-10
Protection Prerequisites ................ 6-93
Distance Protection Teleprotection Schemes
6-77, ............................................ 10-13
Distance Protection with MHO Characteristic
Applying the Function Parameter
Settings ............................ 6-61
Method of Operation ...................... 6-57
Distance Protection with Polygonal Tripping
Characteristic
Applying the Function Parameter
Settings ............................ 6-50
Method of Operation ...................... 6-45
Division of Messages ............................. 7-4
Double Earth Faults in Effectively Earthed
Systems ......................................... 6-39
Double Faults in Effectively Earthed
Systems ......................................... 6-36
Double Point Indication (DP) ............... 5-15
Drop-off to Pick-up Ratios .................. 10-22
E
Earth Current 3 I0 ................................ 6-30
Earth Current Stages ......................... 10-14
Earth Fault
Detection ..................................... 10-11
Protection ........................................ 1-8
Protection in Earthed Systems ..... 6-97,
10-14
Protection Prerequisites .............. 6-122
Recognition ................................... 6-30
Recognition during Single-Pole Open
Condition .......................... 6-32
Earth Fault Protection Teleprotection
7SA522 Manual
C53000-G1176-C119-2
Schemes
Applying the Function Parameter
Settings ........................... 6-122
Method of Operation .................... 6-114
Earth Impedance (Residual)
Compensation ................................ 6-18
Compensation with Magnitude and
Angle ................................. 6-19
Compensation with Scalar Factor .. 6-18
Earth Impedance Matching ................ 10-10
Echo Function ... 6-91, 6-94, 6-120, 6-124
Electrical
Check ............................................... 3-3
Communication Interfaces ............. 2-14
Tests .............................................. 10-6
EMC Tests
Interference Emission .................... 10-7
Interference Immunity .................... 10-7
Emergency operation ......................... 10-12
End fault protection ................ 6-209, 6-213
Ending the Procedure .......................... 8-39
Entering Your Own Information ............ 5-19
Establishing a Default Display .............. 5-43
Establishing Information Properties ..... 5-14
Event Log (Operating Messages) .......... 7-5
Event Recording ................................... 4-15
Events .................................................. 5-38
Exiting the Setting Mode ................ 6-4, 6-6
External Direct and Remote Tripping .... 1-8,
6-130, .......................................... 10-20
External Trip
of the Local Breaker ..................... 10-20
of the Local Circuit Breaker ......... 6-130
F
Fast Binary Outputs ............................. 5-23
Fault Detection and Trip Logic ........... 6-137
Fault Event Data Log ......................... 10-28
Fault Location ............................. 1-9, 10-26
Fault Recording .................................. 10-28
Features ................................................. 1-6
Filter Functions ..................................... 4-22
Filtering / Contact Chatter Suppression 5-16
Final Preparation of the Device ............ 8-45
Front Elements ....................................... 1-3
Front Panel ............................................. 7-3
Front Port and Rear Port ...................... 5-44
Function
Control ......................................... 6-231
Keys ............................................... 4-22
Functions ................................................ 6-1
Further Functions ................................. 1-10
Index
Index-iii