SF6 free high-voltage GIS installation in Zürich, CH. Dr. Walter Holaus, Global Product Manager, ABB Switzerland. 25.11.2015 Current developments in High-voltage switchgear Some examples November 27, 2015 Slide 1
Different types of high-voltage switchgear GIS Hybrid PASS DTB - LTB GIS Hybrid PASS DTB all voltage levels all components encapsulated most compact busbar in air include DS, ES, CT busbar in air focus on USA market complete shipment no FAES, DS, ES LTB all voltage levels no grounded enclosures November 27, 2015 Slide 2
Current developments in high-voltage switchgear Examples by ABB Lower environmental impact over lifetime PD sensor optimization using powerful simulations Pulsed X-ray Induced Partial Discharge Measurement for routine testing Multi-functional modules: A substation on a trailer Motor drive to operate HV circuit breakers Products for new voltage levels SF6 replacement with alternative gases November 27, 2015 Slide 3
Design for lower environmental impact over lifecycle Example: 420 kv GIS November 27, 2015 Slide 4
Optimization of PD sensors Electromagnetic simulations PD sensors are used to measure & monitor PD activity inside a GIS Shape and design of the sensor determines the output signal Optimization improves sensor voltage output over a wide frequency range PD sensor Optimized model Sensor voltage (db) -30-35 -40-45 -50-55 -60 Model 3 Model 4 Model 5 Model 6 Model 7-65 November 27, 2015 Slide 5 Model 7-70 0 1 2 3 4 5 6 7 8 9 10 Frequency (Hz) From: Smajic, Elektromagnetische Analyse und Optimierung des neuen TE-Sensors, Rapperswil, 19 Dezember 2013. x 10 8
Pulsed X-ray Induced Partial Discharge (PXIPD) High voltage pre-testing of insulators Automated test facility for spacers Checks for invisible voids inside the insulation material that may create failures during lifetime of a GIS. Cycle time < 7 min / insulator. HV-transformer Dielectric stress Final Dielectric Test Comparison of HV test methods IEC test voltage PXIPD insulation pretesting Lifetime November 27, 2015 Slide 6
Multi-functional modules 245kV substation on a single trailer MV Transformer HV: Assembled and tested in factory. Designed for easy transportation and installation A solution for rapid or temporary electricity distribution November 27, 2015 Slide 7
Motor drive for HV products A smart drive, IEC 6150 enabled Motor with digitally controlled motion to operate HV circuit breakers. Smart Human-Machine Interface (HMI) to visualize: Single Line Diagrams, System status, operation counter, temperature,.. Compact motor size. Scalable energy storage up to 4 kj Simple configuration and data upload Configurable interlocking function Torque limitation Available for LTB and PASS products SPO and TPO: 72.5 kv - 245 kv Digital interfaces: IEC 61850-8-1 (MMS) IEC 61850-9-2 (GOOSE) November 27, 2015 Slide 8
Products for new voltage levels Rated voltage: 800 kv, 1100 kv, 1200 kv Ultra-high voltage applications requested for super grids 800 kv network is rapidly expanding in china, india 1100 kv network is rapidly expanding in china 1200 kv network is under site testing in india ABB Group ABB Group November November 27, 2015 27, 2015 Slide 9Slide 9 1100kV substation Jingmen, China. Commercial operation since 2009
Modeling & simulation of very fast transients GIS Example: Disconnector switching @1100 kv See: J. Smajic, W. Holaus, J. Kostovic, U. Riechert, 3D Full-Maxwell Simulations of Very Fast November 27, 2015 Slide 10 Transients in GIS, IEEE Transactions on Magnetics, Vol. 47, No. 5, pp. 1514-1517, May 2011.
1200 kv DTB for Powergrid, India BINA substation. Energized 2014. One phase DTB for test installation at BINA 1200 kv SS Assembly and routine tested in ABB India PD sensors to allow PD measurement and localization Installation done for CIGRE UHV conference 2013 November 27, 2015 Slide 11
SF6 free circuit breaker 145 kv, 31.5 ka Pilot installation since 2010 Product release for reduced ratings 72.5/84 kv, 31.5kA, -50 C, LTB+DCB, CO2 Pilot installation with CO2 gas Ratings: Main characteristics Rated voltage 145 kv Rated frequency 50 Hz Rated short-circuit current 31.5 ka Capacitive switching factor 1.4 Rated current 3150 A Ambient temperature -50 C Tested according to IEC 62271-100 November 27, 2015 Slide 12