Summary
Read more on ELECTRAThe Technical Brochure (TB) of WG B3.39 addresses all stakeholders of GIS instrument transformer technology focusing on Low Power Instrument Transformer (LPIT) in high voltage substations. It provides guidelines for LPIT applications and their interface to smart digital substation automation technologies. The reader will find a collection of recommendations and best utility practices provided by WG representatives from utilities, GIS manufacturers and industry experts from around the world.
Table of content
1. Introduction
2. LPIT technologies for GIS
2.1. Current measurement
2.2. Voltage measurement
2.3. MV Technologies
2.4. Bandwidth of different types of LPITs
2.5. Block diagram
2.6. Benefits and implications of LPITs
3. Requirements
3.1. Motivation and expectations for the application of LPITs in GIS
3.2. Lifetime and lifecycle aspects
3.3. Regulatory aspects
4. Implementation
4.1. Applications of LPITs in GIS
4.2. Impact of LPIT to GIS architecture
4.3. Maintenance and conditional assessment
4.4. Performance and experience of LPIT’s
4.5. Test and validation
4.6. Documentation of LPIT components and functionality
5. Conclusion
Appendix A
A.1. General terms
A.2. Specific terms
A.3. Symbols
Appendix B
Appendix C
C.1. Insulation lifetime
C.2. Design lifetime
Appendix D
D.1. Type tests
D.2. Special tests
D.3. Routine tests
D.4. Tests for merging units
Appendix E
E.1. Electronic CT for DC GIS
E.2. LPIT for voltage measurement in DC GIS
E.3. Accuracy classes and tests for DC LPITs
E.4. Implementation at Kii-channel project
E.5. DC current measurement at Kii-channel
E.6. DC voltage measurement at Kii-channel
E.7. Accuracy tests
E.8. Type test overview
Additional informations
| Publication type | Technical Brochures |
|---|---|
| Reference | 814 |
| Publication year | |
| Publisher | CIGRE |
| ISBN | 978-2-85873-519-8 |
| Study committees | |
| Working groups | WG B3.39 |
| File size | 7 MB |
| Pages number | 94 |
| Price for non member | 180 € |
| Price for member | Free |
Authors
Convenor (CH)
R. LUESCHER
Secretary (FR)
G. VALEMBOIS
K. POHLINK (DE), H.-D. SCHLEMPER (CH), E. SPERLING (CH), W. OLSZEWSKI (DE), M. HYVÄRINEN (FI), G. GRANELLI (FR), Y. HIRATA (JP), T. ROKUNOHE (JP), D. DERMOT (IE), Z. QASTALANE (FR), C. FLAHAUT (FR), T. MORI (JP), R. ELOY (ES), M. SAITO (JP), M. MANDLIK (IN), A.M. AHLI (AE)
Corresponding Members
C. JONES (GB), J. BOEHM (AU), D. TABAKOVIC (US)
Keywords
Low Power Instrument Transformers, LPIT, Gas Insulated Switchgear, GIS, Rogowski Coils, Fiber Optic Sensors, Zero-Flux CT, Capacitive Voltage Dividers, IEC 61869, Digital Merging Units, IEC 61850-9-2, Wide-Bandwidth Measurement, Substation Digitalisation
