Scribd
Upload
414 views1 page

Evolution of High-Voltage Switchgear

This document provides a timeline of key developments in electrical switchgear and power systems from 1984 to 1998. It lists the introduction of new technologies like containerized modular high-current switchgear for gas turbines in 1984-1985, decentralized computers for substation control in 1984, outdoor SF6 circuit breakers in 1985, gas insulated medium voltage switchgear up to 24kV and 36kV in 1985, SF6 generator circuit breakers and first digital phase comparison protection system in 1985, supraregional network control centers with multiple computers and telecontrol networks in 1986, hydraulic spring operating mechanisms for high voltage circuit breakers in 1986, first 800kV SF6 gas insulated switchgear installation in 1987, integrated protection and control systems for

Uploaded by

micajecic
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
414 views1 page

Evolution of High-Voltage Switchgear

This document provides a timeline of key developments in electrical switchgear and power systems from 1984 to 1998. It lists the introduction of new technologies like containerized modular high-current switchgear for gas turbines in 1984-1985, decentralized computers for substation control in 1984, outdoor SF6 circuit breakers in 1985, gas insulated medium voltage switchgear up to 24kV and 36kV in 1985, SF6 generator circuit breakers and first digital phase comparison protection system in 1985, supraregional network control centers with multiple computers and telecontrol networks in 1986, hydraulic spring operating mechanisms for high voltage circuit breakers in 1986, first 800kV SF6 gas insulated switchgear installation in 1987, integrated protection and control systems for

Uploaded by

micajecic
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 1

1984-85 Introduction of containerized modular high-current switchgear for gas

turbine power plants


1984 Decentralized computers for transformer substations with telecontrol
functions and local data processing
1985 Outdoor SF6 circuit-breakers employing self-blast principle
1985 Introduction of gas-insulated, medium-voltage switchgear, single-phase
metal-clad for up to 24 kV
1985 Introduction of gas-insulated, medium-voltage switchgear, triple-phase
metal-clad (ZV2), for up to 36 kV (CALOR-EMAG)
1985 SF6 generator circuit-breakers for 24 kV, 100 kA and rated continuous
current of 12000 A
1985 First digital phase-comparison protection system for a high-voltage
network
1986 Supraregional network control centres for 380 kV to 10 kV with multiple
computers and complex, hierarchically structured telecontrol networks
1986 Introduction of hydraulic spring operating mechanisms for high-voltage
circuit-breakers
1987 Worlds first 800 kV SF6 gas-insulated switchgear installation ready for
operation in South Africa
1987 VD4 vacuum circuit-breaker series for 12 kV and 24 kV, particularly suited
for compact switchboard designs (CALOR-EMAG)
1989 Worlds first integrated protection and control system for power generation,
transmission and distribution
1989-91 Two turnkey outdoor switchyards for Thailands 500 kV network
1990 1000th GIS switchgear bay ELK-O, 123 kV, delivered to Graz, Austria
1990 Delivery of the first digital distance and transformer differential protection
relays
1990 World launch of EXLIM metal-oxide surge arresters for system voltages
up to 800 kV
1991 Delivery of the first remote-programmable ripple-control receivers with
distributed intelligence, integral clock and background switching schedules
1992 Commissioning of the first multiterminal HVDC system of 2000 MW,
500 kV, between Quebec and New England
1995 Commissioning of UW8 transformer substation with unified digital station
control system with station-level interlocking (LON) for SF6-insulated
switchbays for 110 kV and 20 kV in Mannheim
1995 Commissioning of the first installation of gas-insulated switchbays supplied
ready for operation from the factory (ZX type) with integrated digital bay
control and protection system (REF 542) and plug-in technology for cable
connection and busbar connection for 10 kV
1997 VM1 vacuum circuit-breaker series with electromagnetic actuating system
for 12 kV and 24 kV
1998 Supply of the 20000th hydraulic spring operating mechanism

892

You might also like