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CYG
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PRS-7367
CYG PRS-7367 User Manual
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Protection Functions
P
R
S
-
73
6
7
33
Category
Profession V
oc
abulary
Abbreviation
Failure
Fail
Impedance
Imp
Reactance
React
Induction
Induct
Positive
Posi
Operation
Block
Blk
Enable
Ena
Operation
Op
T
rip
Tr
Protection
Prot
Mode
Mod
Forward
Fwd
Reverse
Rev
Constant
Const
External
Ex
Internal
In
Number
Num
Selector
Sel
Measurement
Meas
Parameter
Para
Multiplier
Mult
Minimum
Min
Alarm
Alm
Reclose
Recls
Counter
Counter
Correction
Correction
Available
Avai
Initial
Init
Reference
Ref
Normal
Norm
Restraint
Restr
Slope
Slope
Deblock
Deblk
W
i
nding
W
n
d
Elimination
Elim
Nominal
Nom
Connection
Connection
Hysteresis
Hyst
Compensation
Comp
Check
Chk
Synchronize
Syn
Synchronization
Syn
40
42
Table of Contents
Preface
3
User's Guideline
3
Personnel Security
3
Warning Indications
4
Documentation Outline
6
Table of Contents
9
1 Briefly Introduction
25
Application Scope
25
Product Function
25
Product Features
27
2 Technical Specifications
29
Electrical Specifications
29
Current Transformer Ratings
29
Voltage Transformer Ratings
29
Auxiliary Power Supply
29
Binary Input
29
Binary Output
30
Mechanical Specifications
30
Ambient Temperature and Humidity Range
30
Communication Interfaces
31
Ethernet Port
31
Serial Port
31
Time Synchronization
31
Ethernet Port for Debugging
32
Type Tests
32
Environmental Tests
32
Mechanical Tests
32
Electrical Tests
33
Electromagnetic Compatibility
33
Terminals
34
Measurement Range and Accuracy
35
Protection Function Features
35
Overcurrent Protection
35
Residual Overcurrent Protection
36
Sequence Overcurrent Protection
36
Phase Discontinuity Protection
36
Over/Under Frequency Protection
36
Over/Under Voltage Protection
37
Power Protection
37
50BF Protection
37
Thermal Overload
37
Auto-Reclose
37
Ocr_Inr
37
Sensitive Earth Fault
38
Gap Overcurrent and Zero Sequence Overvoltage
38
Restricted Earth Fault Protection 64REF
38
Differential Protection
38
3 Protection Functions
40
Overview
40
Glossary
40
System Parameter
42
Non-Directional Overcurrent Protection 50/51P
43
50/51P Overview
43
50/51P Protection Principle
44
50/51P Application Scope
47
50/51P Settings
47
Directional Overcurrent Protection 67P
49
Overview
49
Protection Principle
51
Application Scope
54
Settings
55
Non-Directional Earth-Fault Protection 51G
56
Overview
56
Protection Principle
57
Application Scope
59
Settings
59
Directional Earth-Fault Protection 67G
61
Overview
61
Protection Principle
62
Application Scope
66
Settings
66
Switch Onto Fault SOTF
67
SOTF Overview
67
SOTF Protection Principle
68
SOTF Application Scope
72
SOTF Settings
72
Circuit Breaker Failure Protection 50BF
73
50BF Overview
73
50BF Protection Principle
74
50BF Application Scope
81
50BF Settings
81
Three-Phase Thermal Overload Protection 49F
82
Overview
82
Protection Principle
83
Application Scope
84
Settings
85
Phase Discontinuity Protection 46D
85
Overview
85
Protection Principle
86
Application Scope
87
Settings
88
Negative Sequence Current Protection 46N
88
Overview
88
Protection Principle
89
Application Scope
91
Settings
91
Three-Phase Overvoltage Protection 59
91
Overview
91
Protection Principle
93
Application Scope
94
Settings
94
Positive Sequence Overvoltage Protection 59P
95
Overview
95
Protection Principle
96
Application Scope
97
Settings
97
Residual Overvoltage Protection 59G
97
Overview
97
Protection Principle
98
Application Scope
99
Settings
100
Negative Sequence Overvoltage Protection 59N
100
Overview
100
Protection Principle
101
Application Scope
102
Settings
102
Under Voltage Load Shedding Protection 27
102
Overview
102
Protection Principle
103
Application Scope
105
Settings
105
Positive Sequence under Voltage Protection 27P
106
Overview
106
Protection Principle
107
Application Scope
108
Settings
108
Under Voltage Protection CUB_27
108
CUB_27 Overview
108
CUB_27 Protection Principle
109
CUB_27 Application Scope
110
CUB_27 Settings
111
Over Frequency Protection 81O
111
Overview
111
Protection Principle
112
Application Scope
113
Settings
113
Under Frequency Protection 81URS
113
81URS Overview
113
81URS Protection Principle
114
81URS Application Scope
115
81URS Settings
116
Under Frequency Restore Protection 81URE
116
81URE Overview
116
81URE Protection Principle
117
81URE Application Scope
118
81URE Settings
118
Frequency Gradient Protection 81R
119
Overview
119
Protection Principle
119
Application Scope
120
Settings
121
Automatic Reclose 79AR
121
Overview
121
Operation Principle
123
Settings
134
Synchronism Check 25SYN
135
Overview
135
Operation Principle
137
Logic
138
Settings
140
Current Unbalance Protection 51NA
141
51NA Overview
141
51NA Protection Principle
142
51NA Application Scope
144
51NA Settings
144
Three Phase Current Unbalance Protection 51NT
145
51NT Overview
145
51NT Protection Principle
146
51NT Application Scope
148
51NT Settings
149
Voltage Unbalance Protection 59NA
149
59NA Overview
149
59NA Protection Principle
150
59NA Application Scope
152
59NA Settings
152
Three Phase Voltage Unbalance Protection 59NT
153
59NT Overview
153
59NT Protection Principle
153
59NT Application Scope
155
59NT Settings
155
Fault Locator 21FL
155
21FL Overview
155
21FL Protection Principle
156
21FL Application Scope
157
21FL Settings
158
Reverse Power Protection 32R
158
Overview
158
Protection Principle
159
Application Scope
162
Settings
162
Power Protection 32
162
Overview
162
Protection Principle
163
Application Scope
164
Settings
164
Voltage Selection
164
Overview
164
Protection Principle
166
Application Scope
167
Settings
167
Mechanical Protection MP
167
Overview
167
Protection Principle
168
Application Scope
169
Settings
169
General Function Block
169
IDMT Curves for over Quantity Protection
169
CB Position
171
Backup Power Automatic Switch
171
Overview
171
Operation Principle
173
Application Scope
185
Settings
186
Trip Logic 94T
187
Overview
187
Protection Principle
187
Application Scope
190
Settings
190
Close Logic
191
Overview
191
Protection Principle
191
Application Scope
193
Settings
193
Three Phase Inrush Function OCR_INR
193
Overview
193
Protection Principle
193
Application Scope
194
Settings
195
Wattmetric Sensitive Earth-Fault Protection SEF
196
Overview
196
Protection Principle
197
Application Scope
200
Settings
200
Under Current Protection 37C
201
Overview
201
Protection Principle
202
Application Scope
202
Settings
203
Block Busbar Protection
203
Overview
203
Protection Principle
204
Application Scope
206
Settings
206
Gap Over-Current & Zero-Sequence Over-Voltage Protection
206
Overview
206
Protection Principle
207
Application Scope
208
Settings
208
Restricted Earth Fault Protection 64REF
208
Overview
208
Protection Principle
209
Logic Diagram
214
Settings
214
Transformer Current Circuit Supervision TF CTS
215
Overview
215
Logic Diagram
217
Protection Principle
217
Transformer Fuse Failure Supervision TF VTS
218
Overview
218
Logic Diagram
219
Protection Principle
219
Faulty Phase Selection (FPS)
219
Overview
219
Operation Principle
220
Settings
221
Stabilized Differential Protection for Machines 87MPDIF
222
Overview
222
Differential Current off Limit Alarm
223
Instantaneous High Stage Principle
223
Biased Low Stage Principle
224
CT Supervision Block
226
CT Saturation Blocking
227
Overall Logic
227
Settings
228
Flux-Balance Based Differential Protection 87MFDIF
229
Overview
229
Principle
230
Logic
230
Settings
230
Machine Startup MST
231
Overview
231
Principle
231
Settings
232
Long Start Protection MQDS
233
Overview
233
Principle
233
Settings
234
The Locked-Rotor Protection MDZS
234
Overview
234
Principle
235
Settings
235
Synchronous Motor Loss of Step 78O
236
Overview
236
Principle
236
Settings
238
Synchronous Motor Loss of Excitation 40O
239
Overview
239
Principle
239
Settings
241
4 Supervision Functions
242
Overview
242
Supervision Alarm and Block
242
Current Circuit Supervision CTS
243
CTS Overview
243
CTS Operation Principle
244
CTS Application Scope
246
CTS Settings
246
Fuse Failure Supervision PTS
246
PTS Overview
246
PTS Operation Principle
247
PTS Application Scope
249
PTS Settings
249
Trip Circuit Supervision TCS
250
TCS Overview
250
TCS Operation Principle
250
TCS Application Scope
251
TCS Settings
251
5 Monitoring & Control
252
Overview
252
Control SYN
252
25SYN Overview
252
SYN Operation Principle
253
25SYN Check Result
257
25SYN Check Block
258
25SYN Application Scope
258
25SYN Settings
259
Measurement
261
Protection Sampling
261
Metering
261
Settings
262
Binary Input
263
Function Description
263
Function Block
264
I/O Signal
264
Binary Output
265
Function Description
265
Function Block
266
I/O Signal
266
Settings
266
Interlocking Logic Output
267
Function Description
267
Functional Block
268
I/O Signal
268
Apparatus Control
268
Signaling
269
Event Records
270
Overview
270
Fault Record Events
270
Alarm Record Events
270
Device Record
271
Sequence of Event
271
Fault and Disturbance Recording
272
Wave Recording File Format
272
Fault Wave File
272
Waveform Recording Duration
272
Fault Wave Recording
273
6 Hardware
275
Overview
275
Human Machine Interface Module
277
Power Supply Module
277
Main CPU Module
279
Transformer Module
281
Binary Input Module
283
Binary Output Module
285
Binary Input/Output Module
287
7 Man Machine Interface
290
Overview
290
Design Structure
290
Function Mode
290
Operating Panel Keypad and Keys
290
Indication of LED
291
Configurable Keys
293
LCD Display Description of HMI
294
Overview
294
Normal Display Structure of LCD
294
Main Menu Display
295
Sub Menu Functions of Main Menu
296
Physical Information
296
Review Information
299
Monitoring Information
300
Event Information
303
Record Information
307
Setting Information
308
Configuration Information
311
Test Information
314
Instrumentation and Meters Notice
335
Tools Requirement
335
Commission Preparation
335
Basic Knowledge
335
Operation Preparation
336
Product Checks
336
Document Check
336
Appearance Inspection
336
Insulation Check
337
External Wiring Check
337
Test Category
337
With the Relay Energized
338
LCD Display Check
338
Date and Time
338
Light Emitting Diodes (Leds)
338
Test the AC Current Circuit
339
Test the AC Voltage Inputs
340
Test the Binary Inputs
341
Test the Binary Outputs
341
Protection Function Checks
341
Printing Function Checks
341
On-Load Checks
341
Final Checks
342
Installation
343
General
343
Safety Instructions
343
Checking the Shipment
343
Material and Tools Required
344
Device Location and Ambient Conditions
345
Mechanical Installation
345
4
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CYG PRS-7367 Specifications
General
Brand
CYG
Model
PRS-7367
Category
Control Unit
Language
English
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