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SIPROTEC 4 7UT6 Series
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Siemens SIPROTEC 4 7UT6 Series - C Connection Examples
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Connection Examples
C.1
Current Transformer Connection Examples
506
C.2
Voltage Transformer Connection Examples
519
C.3
Assignment of Protection Functions to Protected Objects
521
C
SIPROTEC 4, 7UT6x, Manual
505
C53000-G1176-C230-5, Edition 09.2016
504
506
Table of Contents
Main Page
Default Chapter
3
Preface
3
Table of Contents
7
1 Introduction
15
Overall Operation
16
Application Scope
19
Characteristics
21
2 Functions
27
General
28
Device
28
Setting Notes
28
Settings
29
Information List
29
EN100-Modul 1
30
Function Description
30
Setting Notes
30
Information List
30
Functional Scope
30
Settings
37
Power System Data 1
40
Topology of the Protected Object
40
General Power System Data
55
Assignment of Protection Functions to Measuring Locations / Sides
68
Circuit Breaker Data
71
Settings
72
Information List
84
Setting Groups
85
Purpose of Setting Groups
85
Setting Notes
85
Settings
85
Information List
85
Power System Data 2
86
Setting Notes
86
Settings
88
Information List
89
Differential Protection
92
Functional Description of the Differential Protection
92
Differential Protection for Transformers
101
Differential Protection for Generators, Motors, and Series Reactors
108
Differential Protection for Shunt Reactors
109
Differential Protection for Mini-Busbars and Short Lines
110
Single-Phase Differential Protection for Busbars
111
Setting Notes
115
Settings
121
Information List
122
Restricted Earth Fault Protection
125
Application Examples
125
Function Description
128
Setting Notes
133
Settings
134
Information List
134
Time Overcurrent Protection for Phase and Residual Currents
136
General
136
Definite Time, Instantaneous Overcurrent Protection
136
Inverse Time Overcurrent Protection
140
Manual Close Command
143
Dynamic Cold Load Pickup
143
Inrush Restraint
143
Fast Busbar Protection Using Reverse Interlocking
145
Time Overcurrent Protection for Phase Currents
146
Setting Notes
146
Settings
152
Information List
154
Time Overcurrent Protection for Residual Current
155
Setting Notes
155
Settings
159
Information List
160
Time Overcurrent Protection for Earth Current
161
General
161
Definite Time, Instantaneous Overcurrent Protection
161
Inverse Time Overcurrent Protection
163
Manual Close Command
165
Dynamic Cold Load Pickup
165
Inrush Restraint
165
Setting Notes
166
Settings
169
Information List
171
Dynamic Cold Load Pickup for Time Overcurrent Protection
172
Functional Description
172
Setting Notes
174
Settings
175
Information List
175
Single-Phase Time Overcurrent Protection
177
Functional Description
177
High-Impedance Differential Protection
178
Tank Leakage Protection
180
Setting Notes
181
Settings
185
Information List
185
Unbalanced Load Protection
187
Functional Description
187
Setting Notes
193
Settings
198
Information List
199
Thermal Overload Protection
200
General
200
Overload Protection Using a Thermal Replica
200
Overload Protection Using a Thermal Replica with Ambient Temperature Influence
202
Hot-Spot Calculation and Determination of the Ageing Rate
203
Setting Notes
205
Settings
209
Information List
210
RTD-Boxes for Overload Detection
211
Functional Description
211
Setting Notes
211
Settings
211
Information List
216
Overexcitation Protection
218
Functional Description
218
Setting Notes
219
Settings
222
Information List
222
Reverse Power Protection
224
Functional Description
224
Setting Notes
225
Settings
227
Information List
228
Forward Power Supervision
229
Functional Description
229
Setting Notes
230
Settings
232
Information List
232
Undervoltage Protection
233
Functional Description
233
Setting Notes
234
Settings
235
Information List
235
Overvoltage Protection
236
Functional Description
236
Setting Notes
237
Settings
237
Information List
238
Frequency Protection
239
Functional Description
239
Setting Notes
240
Settings
242
Information List
242
Circuit Breaker Failure Protection
244
Functional Description
244
Setting Notes
247
Settings
250
Information List
250
External Trip Commands
251
Functional Description
251
Setting Notes
252
Settings
252
Information List
252
Monitoring Functions
254
Measurement Supervision
254
Hardware Monitoring
254
Software Monitoring
254
Monitoring of Measured Quantities
255
Setting Notes
257
Settings
257
Information List
258
Trip Circuit Supervision
259
Functional Description
259
Setting Notes
261
Settings
262
Information List
262
Monitoring
262
Broken Wire Detection, Fuse Failure Monitoring
262
Setting Notes
265
Settings
266
Information List
266
Malfunction Responses of the Monitoring Functions
268
Summary of the most Important Monitoring Functions
268
Parameterisation Error
270
Function Control
271
Pickup Logic for the Entire Device
271
Tripping Logic for the Entire Device
271
Disconnection of Measuring Locations
273
Functional Description
273
Information List
274
Auxiliary Functions
276
Processing of Messages
276
General
276
Operational Annunciations (Buffer: Event Log)
277
Fault Annunciations (Buffer: Trip Log)
277
Spontaneous Annunciations
278
General Interrogation
278
Switching Statistics
278
Measurement
278
Display and Transmission of Measured Valuables
278
Settings
282
Information List
282
Thermal Measurement
285
Functional Description
285
Information List
286
Differential and Restraining Measured Values
287
Functional Description
287
Information List
287
Set Points for Measured Values
288
User Defined Set-Points
288
Energy Metering
288
Functional Description
288
Information List
289
Flexible Function
289
Functional Description
289
Setting Notes
290
Settings
294
Information List
297
Oscillographic Fault Recording
298
Functional Description
298
Setting Notes
298
Settings
299
Information List
299
Commissioning Aids
299
Web-Monitor
299
Average Values, Minimum and Maximum Values
301
Demand Measurement Setup
301
Setting Notes
301
Settings
302
Min/Max Measurement Setup
302
Setting Notes
302
Information List
302
Command Processing
303
Control Authorization
303
Type of Commands
303
Sequence in the Command Path
303
Interlocking
304
Recording and Acknowledgement of Commands
307
Information List
307
3 Mounting and Commissioning
309
Mounting and Connections
310
Configuration Information
310
Hardware Modifications
314
General
314
Disassembly
316
Switching Elements on Printed Circuit Boards
320
Interface Modules
336
Reassembly
342
Mounting
343
Panel Flush Mounting
343
Rack and Cubicle Mounting
344
Panel Surface Mounting
347
Removing the Transport Protection
348
Checking Connections
349
Checking Data Connections of Interfaces
349
Checking the System Connections
351
Commissioning
354
Test Mode / Transmission Block
355
Test Time Synchronisation Interface
355
Testing the System Interface
355
Checking the Switching States of the Binary Inputs/Outputs
357
Checking the Setting Consistency
359
Secondary Tests
365
Circuit Breaker Failure Protection Tests
370
Symmetrical, Primary Current Tests on the Protected Object
372
Zero Sequence Current Tests on the Protected Object
378
Current Tests for Busbar Protection
383
Testing of the Non-Assigned 1-Phase Current Inputs
385
Checking the Voltage Connections and Polarity Check
386
Testing User-Defined Functions
390
Stability Check and Triggering Oscillographic Recordings
391
Final Preparation of the Device
393
4 Technical Data
395
General
396
Analogue Inputs
396
Auxiliary Voltage
396
Binary Inputs and Outputs
397
Frequency Measurement Via the Positive Phase-Sequence Voltage U1
398
Communications Interfaces
399
Electrical Tests
403
Mechanical Tests
405
Climatic Stress Test
405
Service Conditions
406
Construction
406
Differential Protection
408
Restricted Earth Fault Protection
414
Time Overcurrent Protection for Residual Current
416
Time Overcurrent Protection for Earth Current
428
Dynamic Cold Load Pickup for Time Overcurrent Protection
430
Single-Phase Time Overcurrent Protection
431
Unbalanced Load Protection
432
Thermal Overload Protection
440
RTD-Boxes for Overload Detection
443
Overexcitation Protection
444
Reverse Power Protection
446
Forward Power Supervision
447
Undervoltage Protection
449
Overvoltage Protection
450
Frequency Protection
451
Circuit Breaker Failure Protection
453
External Trip Commands
454
Monitoring Functions
455
User-Defined Functions (CFC)
456
Flexible Function
459
Additional Functions
461
Dimensions
465
Panel Surface Mounting (Housing Size 1 / 3 )
465
Panel Surface Mounting (Housing Size 1 / 2 )
465
Panel Surface Mounting (Housing Size 1 / 1 )
466
Panel Flush Mounting or Cubicle Mounting (Housing Size 1 / 3 )
467
Panel Flush Mounting or Cubicle Mounting (Housing Size / )
468
Panel Flush Mounting or Cubicle Mounting (Housing Size / )
469
RTD Box
470
A Ordering Information and Accessories
471
Differential Protection 7UT612 for 2 Measuring Locations
472
Differential Protection 7UT613 for 3 Measuring Locations
474
A.3 1.1.3 Differential Protection 7UT633 and 7UT635 for 3 to 5 Measuring Locations
477
Accessories
480
B Terminal Assignments
483
Panel Flush and Cubicle Mounting
484
Panel Surface Mounting
494
C Connection Examples
505
Current Transformer Connection Examples
506
Voltage Transformer Connection Examples
519
Assignment of Protection Functions to Protected Objects
521
D Current Transformer Requirements
523
General Requirements
524
E Default Settings and Protocol-Dependent Functions
529
Default Settings Leds
530
Default Settings Binary Inputs
531
Default Settings Binary Outputs
532
Default Settings Function Keys
533
Default Display
534
Pre-Defined CFC Charts
536
Protocol-Dependent Functions
537
F Functions, Settings, Information
539
Functional Scope
540
Settings
543
Information List
587
Group Alarms
654
Measured Values
656
Literature
665
Glossary
667
Index
677
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