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NG10
Thytronic NG10 User Manual
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FUNCTION CHARACTERISTICS
49
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General logic diagram of the residual overcurrent or high impedance restricted ground fault elements 50N/51N-87NHIZ
48
50
Table of Contents
Table of Contents
2
Introduction
5
Scope and Liability
5
Applicability
5
Conformity
5
Technical Support
5
Copyright
5
Warranty
5
Safety Recommendations
5
Insulation Tests
5
Product Identification
6
Environment
6
Graphical Conventions
6
Glossary/Definitions
6
General
10
Preface
10
Photo
10
Main Features
11
Technical Data
12
General
12
Product Standard for Measuring Relays
12
Mechanical Data
12
Insulation
12
Voltage Dip and Interruption
12
EMC Tests for Interference Immunity
12
Emission
13
Mechanical Tests
13
Climatic Tests
13
Safety
13
Certifications
13
Input Circuits
14
Auxiliary Power Supply Uaux
14
Phase Current Input Circuits (Side H and Side L)
14
Residual Current Input Circuit
14
Binary Input Circuits
14
Block Input (Logic Selectivity)
14
Output Circuits
14
Relays
14
Block Output (Logic Selectivity)
15
MMI
15
Communication Interfaces
15
Local Port
15
Remote Ports
15
General Settings
16
Rated Values (Base)
16
Input Sequence
16
Polarity [3]
16
Protective Functions
17
Thermal Protection with Pt100 Probes - 26
17
Residual Overcurrent or High Impedance Differential Restricted Ground Fault - 50N/51N - 87NHIZ
17
Low Impedance Restricted Ground Fault - 64REF Side H
18
Breaker Failure - BF
18
Control and Monitoring
19
Trip Circuit Supervision Side H and Side L - 74TCS
19
Selective Block - BLOCK2
19
Circuit Breaker Supervision
19
CT Supervision - 74CT Side H
19
CT Supervision - 74CT Side L
19
Pilot Wire Diagnostic
19
Demand Measures
19
Oscillography (DFR)
20
PLC (Programmable Logic Controller)
20
Metering
21
Accuracy (Type Tests)
21
Measures
21
Function Characteristics
22
Hardware Description
22
Power Supply Board
23
CPU Board
23
Input Board
23
MMI (Keyboard, LED and Display)
23
Software Description
24
Base Software
24
Real-Time Operating System
24
Task
24
Drivers
25
Application Software
25
Data Base
25
Self Test (Application)
25
Development Tools (Builder)
25
I/O Description
26
Metering Inputs
26
Signal Processing
26
Conventions
29
Polarity Reversal
30
Use of Measured Values
31
Binary Inputs
32
Output Relays
37
LED Indicators
39
Communication Interfaces
41
Protective Elements
42
Rated Values
42
Thermal Protection with RTD Thermometric Probes - 26
44
Residual Overcurrent / High Impedance Restricted Ground Fault - 50N/51N-87NHIZ
46
Low Impedance Restricted Ground Fault- 64REF
56
Differential Protection for Generator-Motor-Short Line (87G-M-L)
60
Breaker Failure - BF
70
Control and Monitoring
72
Logical Block - BLOCK1
72
Selective Block -BLOCK2
74
Logic Block Summary
79
Remote Tripping
80
Frequency Tracking
81
CT Supervision - 74CT - Side H and Side L
82
Trip Circuit Supervision - 74TCS
83
Circuit Breaker Supervision
86
Demand Measures
89
Oscillography
89
Measures, Logic States and Counters
90
Measures
90
Protection
90
Delayed Inputs
90
Internal States
90
Relays
91
Counters
91
Self Test
91
Pilot Wire Diagnostic
92
Selective Block - BLOCK2
92
Fault Recording - SFR
92
Event Recording - SER
92
Oscillography - DFR
93
Installation
95
Packaging
95
Mounting
95
Electrical Connections
99
Nominal Current Iand Isetting
107
Led Allocation
111
Final Operations
111
Programming and Settings
112
SW Thyvisor
112
Thyvisor Installation
112
Thyvisor Use
112
MMI (man Machine Interface)
113
Reading Variables (READ)
113
Setting Modifying (SET)
113
Test
115
Communication
115
Circuit Breaker Commands
116
Enable / Block Changes Via Keyboard - Password
116
Modules Management
117
Maintenance
118
Repair
118
Packaging
118
Appendix
119
APPENDIX A1 - Inverse Time IEC Curves
119
Mathematical Formula
119
Measures Residual Overcurrent 50N/51N - Standard Inverse Time Curve (IEC 60255-3/BS142 Type A)
120
Measures Residual Overcurrent 50N/51N - very Inverse Time Curve (IEC 60255-3/BS142 Type B)
121
Measures Residual Overcurrent 50N/51N - Extremely Inverse Time Curve (IEC 60255-3/BS142 Type C)
122
APPENDIX A2 - Inverse Time ANSI/IEEE Curves
123
Mathematical Formula
123
Measured Residual Overcurrent 50N/51N - Moderately Inverse Time Curve (ANSI/IEEE Type MI)
124
Measured Residual Overcurrent 50N/51N - very Inverse Time Curve (ANSI/IEEE Type VI)
125
Measured Residual Overcurrent 50N/51N - Extremely Inverse Time Curve (ANSI/IEEE Type EI)
126
APPENDIX A3 - Inverse Time EM Curves
127
Mathematical Formula
127
Measured Residual Overcurrent 50N/51N - Electromechanical Inverse Curves (EM)
128
APPENDIX B1 - I/O Diagram
129
APPENDIX B2 - Interfaces
130
APPENDIX B3- Connection Diagrams
131
APPENDIX C - Dimensions
134
APPENDIX D - Setting Table
135
APPENDIX E - EC Declaration of Conformity
158
4
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Thytronic NG10 Specifications
General
Brand
Thytronic
Model
NG10
Category
Protection Device
Language
English
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