current developments of high voltage switchgear technology
TRANSCRIPT
© ABB GroupNovember 27, 2015 | Slide 1
Current developments inHigh-voltage switchgearSome examples
Dr. Walter Holaus, Global Product Manager, ABB Switzerland. 25.11.2015
SF6 free high-voltage GIS installation in Zürich, CH.
© ABB GroupNovember 27, 2015 | Slide 2
Different types of high-voltage switchgearGIS – 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
© ABB GroupNovember 27, 2015 | Slide 3
Current developments in high-voltage switchgear
§ Lower environmental impact over lifetime
§ PD sensor optimization using powerful simulations
§ Pulsed X-ray Induced Partial Discharge Measurement forroutine 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
Examples by ABB
© ABB GroupNovember 27, 2015 | Slide 4
Design for lower environmental impact over lifecycleExample: 420 kV GIS
© ABB GroupNovember 27, 2015 | Slide 5
Optimization of PD sensors
§ PD sensors are used to measure & monitorPD activity inside a GIS
§ Shape and design of the sensor determinesthe output signal
§ Optimization improves sensor voltageoutput over a wide frequency range
Electromagnetic simulations
0 1 2 3 4 5 6 7 8 9 10
x 108
-70
-65
-60
-55
-50
-45
-40
-35
-30Model 3Model 4Model 5Model 6Model 7
Frequency (Hz)
Sen
sorv
olta
ge(d
B)
Model 7
PD sensor Optimized model
From: Smajic, Elektromagnetische Analyse und Optimierung des neuen TE-Sensors, Rapperswil, 19 Dezember 2013.
© ABB GroupNovember 27, 2015 | Slide 6
Pulsed X-ray Induced Partial Discharge (PXIPD)High voltage pre-testing of insulators
§ Automated test facility for spacers
§ Checks for “invisible” voids inside the insulationmaterial that may create failures during lifetimeof a GIS.
§ Cycle time < 7 min / insulator.
HV-transformer
PXIPD insulationpretesting
LifetimeD
iele
ctric
stre
ss
IEC test voltage
Fina
lDie
lect
ricTe
st Comparison of HVtest methods
© ABB GroupNovember 27, 2015 | Slide 7
Multi-functional modules245kV 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
© ABB GroupNovember 27, 2015 | Slide 8
Motor drive for HV products
§ 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)
A smart drive, IEC 6150 enabled
© ABB GroupNovember 27, 2015 | Slide 9
Products for new voltage levels
§ 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
Rated voltage: 800 kV, 1100 kV, 1200 kV
© ABB GroupNovember 27, 2015 | Slide 91100kV substation “Jingmen”, China. Commercial operation since 2009
© ABB GroupNovember 27, 2015 | Slide 10
Modeling & simulation of very fast transients GISExample: Disconnector switching @1100 kV
See: J. Smajic, W. Holaus, J. Kostovic, U. Riechert, “3D Full-Maxwell Simulations of Very FastTransients in GIS”, IEEE Transactions on Magnetics, Vol. 47, No. 5, pp. 1514-1517, May 2011.
© ABB GroupNovember 27, 2015 | Slide 11
1200 kV DTB for Powergrid, IndiaBINA 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
© ABB GroupNovember 27, 2015 | Slide 12
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
SF6 free circuit breaker 145 kV, 31.5 kA
§ Product release for reduced ratings
§ 72.5/84 kV, 31.5kA, -50°C, LTB+DCB, CO2
§ Pilot installation with CO2 gas
§ Ratings:
Pilot installation since 2010