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 Zrich, 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, -50C, LTB+DCB, CO2

Pilot installation with CO2 gas

Ratings:

Pilot installation since 2010