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Data Analysis
Part 17997
Rev. 6, March 2011
11-7
Other parameters (transformer load, oil temperature, dissolved gas analysis [DGA]) can
also be useful in interpreting the gas level and trend evolutions. This information can even
be used to comment the historic data (see the
Hydran Host Software Manual
).
An excellent source of information on the interpretation of gases in oil is the IEEE Standard
C57.104-1991 “Guide for the Interpretation of Gases in Oil-Immersed Transformers.”
When interpreting the data of the Hydran 201
i
System, take the following points in consid-
eration:
• An alarm can be triggered because of a misadjusted alarm set point. The historic data file
Events indicates the modifications to the parameter settings (see Section 11.2.2 on
page 11-6).
• An alarm (example: Low gas level) can be triggered following some maintenance
procedure on the transformer, such as vacuum degassing of the oil.
• Daily load cycles and intermittent transformer operations both affect the Hydran 201T
i
’s
gas level and hourly trend readings.
Содержание Hydran 201i
Страница 1: ...GE Energy Services Digital Energy Hydran Instruction Manual 201i System ...
Страница 6: ...Instruction Manual vi Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 8: ...Instruction Manual viii Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 22: ...Instruction Manual xxii Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 36: ...Chapter 1 Introduction 1 10 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 72: ...Chapter 3 Hydran 201Ci Controllers 3 16 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 114: ...Chapter 5 Before Installation 5 16 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 143: ...Installation Part 17997 Rev 6 March 2011 6 29 Figure 6 9 Installing the CPU Module ...
Страница 176: ...Chapter 8 Hydran 201Ci 1 Installation 8 16 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 190: ...Chapter 9 Communications and Networking 9 14 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 216: ...Chapter 11 Operating the Hydran 201i System 11 8 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 236: ...Chapter 12 Troubleshooting 12 20 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 244: ...Chapter 13 Maintenance 13 8 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 254: ...Appendix B Mechanical Drawings B 2 Rev 6 March 2011 Part 17997 Figure B 3 1 5 In Adaptor ...
Страница 255: ...Hydran 201Ti Intelligent Transmitter Part 17997 Rev 6 March 2011 B 3 Figure B 4 1 In Adaptor ...
Страница 262: ...Appendix C Functional Block Diagrams C 4 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 282: ...Appendix F Default Values of the Parameters F 4 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 284: ...Appendix G Unit Conversions G 2 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 298: ...Appendix I Glossary I 12 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
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