Siemens SIPROTEC 7SJ80 User Manual

Fault Locator 232, 404
double ground faults 232
Fault Logging 418
Fault Messages
Seting notes 34
Fault Recording 418
Fault Records 47
Fiber-optic Cables 330
Final Preparation of the Device 352
Frequency protection 138
Frequency Protection 81 O/U 390
Function Blocks 411
G
General Device Pickup 275
General Tripping 275
Ground fault 114, 114
measurements cos ϕ 175
Ground Fault Check 347
Ground fault detection
Direction determination for cos-ϕ/ sin-ϕ 189
Logic with cos-φ/ sin-φ 175
Ground Fault Detection
Current Elements with cos-φ/ sin-φ 173
Current Elements with U0/I0–φ 179
Determination of Direction with cos-φ/ sin-φ 173
Logic with U0/I0 φ 180
Trip delay with U0/I0 φ 190
Tripping Area with U0/I0–φ 179
voltage element with cos-φ/ sin-φ 172
Voltage Element with U0/I0-φ 178
Ground Fault Detection (Sensitive/Insensitive) 395
H
Hardware Monitoring 154
High-impedance Protection 116
Srensitivity 118
Stability 117
Hours Meter "CB open" 279
Humidity 361
I
Inrush Restraint 68, 90, 378
Insulation Test 358
Interlocked 302
Intermittent Ground Fault Protection 198, 401
Inverse Time Overcurrent 62
Inverse-time Overcurrent Protection 365
L
Limits CFC blocks 412
Limits User-defined Functions 412
Line sections 232, 233
Local Measured Value Monitoring 418
Long-Term Mean Values 417
M
Malfunction Responses 170
Mechanical Tests 360
Mesurement Monitoring 154
Min./Max. Memory 417
Monitoring of the Circuit Breaker Auxiliary Contacts 237
Monitoring of the Current Flow 236
N
Negative Sequence Protection 132
Negative Sequence Protection (definite-time character-
istic) 383
Negative Sequence Protection (inverse-time characteris-
tics) 384
Non-Interlocked Switching 302
O
Offset Monitoring 156
Operating Hours Counter 419
Operational Measured Values 416
Ordering Information 426
Output Relays Binary Outputs 355
Overcurrent Protection 56
1-phase 380
pickup value 116, 120
Rated data of a CT 116
time delay 120
trip time delay 116
Overcurrent Protection 1-phase
Current Elements 380
Overcurrent Protection Ground Current
Frequency 380
Overcurrent Protection Single-phase
Frequency 380
Overfrequency 138
Overload Protection 147
Overvoltage Protection 59 123
Index
560 SIPROTEC 4, 7SJ80, Manual
E50417-G1140-C343-A8, Edition 12.2017

Siemens SIPROTEC 7SJ80 Specifications

General

Rated Frequency	50/60 Hz
Rated Current	1 A / 5 A
Operating Temperature	-25°C to +55°C
Storage Temperature	-40°C to +70°C
Current Transformer Inputs	4
Application	Protection of feeders, motors, transformers, and generators
Rated Voltage	100-240 V AC/DC
Communication Protocols	IEC 61850, Modbus, DNP3, IEC 60870-5-103
Display	Graphical LCD
Mounting	Flush mounting
Protection Functions	Overcurrent, Earth fault
Communication Interfaces	Ethernet, RS485
Housing	Plastic
Weight	Approx. 1.5 kg