SF6 Gas Insulated Switchgear Type ELK-14

252kV, 50kA

World-wide success

ABB group is one of the world top Beside the customer quality require- power system and industry customers 500 enterprises, is a global leader in ment, the company applies ABB man- for domestic and oversea market. The power technologies and automation, datory quality control assurance pro- high quality, advanced technique and and has the most advanced technolo- gram, assembling processes and test- low maintenance are much appreciated gies in Gas Insulated Switchgear (GIS) ing criteria plus its imported core com- allover.all around the world. ponents from ABB specialized units:

Focus on the future development, the hight level of performance is guaran-ABB Huadian High Voltage company will follow the principles of teed!Switchgear (Xiamen) Co.,Ltd. founded ABB group “Customer Focus”, utilize in Dec 1999, is a joint venture of ABB Products started delivered in May our advantage, guarantee the products (China) Co.,Ltd., China Huadian 2001. Company has successively with best quality and most effective Engineering Co.,Ltd., Huadian obtained ISO 9001:2000, ISO service to our customers. To develop Engineering (Xiamen) Co.,Ltd. and 14001:2004 and OHSAS 18001:1999 the partnership for better understand-Fujian xiamen Electric Power Bureau. certificates issued by CQC/DNV and ing and trust with customers, this is The business scope of the company is high-tech enterprise certificate issued also the company management policy to design, manufacture, assemble, test by the government. and service objective.and commercialize high voltage SF6

Already, more than 1200 high voltage gas insulated switchgear and accesso-switchbays have been supplied to ries up to 550kV.

Company brief ABB’s SF6 gas-insulated switchgear Ideally suited for voltages up to Longevity Top-quality materials and technology has been proving its 252kV, the modular ELK-14 range workmanship guarantee maximum life worth, day in, day out, for years. In combines innovation with well proven with a minimum of service and main-applications all over the world. It owes qualities: the features that have given tenance.its leading international position to a ABB GIS systems their international string of significant advantages. Like reputation. Economy Use of aluminium enclo-system security, for example. And reli- sures reduces the weight of the sys-able performance. And the fact that Safety The earthed metal enclosure tem, cutting the cost of foundations it’s economical and has an extremely guarantees maximum operational and load-bearing components.long service life, even under the safety.toughest conditions. Efficiency Prefabrication of subas-

Reliability All live parts are enclosed semblies and stringent quality control Apart from its many classical qualities, and effectively protects the insulation at our own factory simplify final the ELK-14 series boasts several very system against negative external influ- installation and commissioning.advanced features. With compact ences.architecture and fewer components, Environmently friendly Significant for example, it requires far less space Compactness The ELK-14 range reduction in number of flanges and than previous systems. Which simpli- is so well designed that it requires up seals, as well as a small compact fies operations and cuts costs from to 40% less space than previous GIS design.the moment you start using it. And systems.goes on doing so. ABB’s GIS systems Combine 3-phase technology are designed for future upgrading Flexibility The system’s modular Highest reliability together with high-because both main circuits and con- architecture permits individual solu- est compactness.trol & protection are totally modular. tions that can be adapted to changing Which means you can expand and needs at any time.adapt when you need to. Simply and efficiently. We call it systematised flexibility.

ABB switchgear systems offer maximum flexibility:because we draw on experience from the past to meet the needs of the future.

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World-wide success

ABB group is one of the world top Beside the customer quality require- power system and industry customers 500 enterprises, is a global leader in ment, the company applies ABB man- for domestic and oversea market. The power technologies and automation, datory quality control assurance pro- high quality, advanced technique and and has the most advanced technolo- gram, assembling processes and test- low maintenance are much appreciated gies in Gas Insulated Switchgear (GIS) ing criteria plus its imported core com- allover.all around the world. ponents from ABB specialized units:

Focus on the future development, the hight level of performance is guaran-ABB Huadian High Voltage company will follow the principles of teed!Switchgear (Xiamen) Co.,Ltd. founded ABB group “Customer Focus”, utilize in Dec 1999, is a joint venture of ABB Products started delivered in May our advantage, guarantee the products (China) Co.,Ltd., China Huadian 2001. Company has successively with best quality and most effective Engineering Co.,Ltd., Huadian obtained ISO 9001:2000, ISO service to our customers. To develop Engineering (Xiamen) Co.,Ltd. and 14001:2004 and OHSAS 18001:1999 the partnership for better understand-Fujian xiamen Electric Power Bureau. certificates issued by CQC/DNV and ing and trust with customers, this is The business scope of the company is high-tech enterprise certificate issued also the company management policy to design, manufacture, assemble, test by the government. and service objective.and commercialize high voltage SF6

Already, more than 1200 high voltage gas insulated switchgear and accesso-switchbays have been supplied to ries up to 550kV.

Company brief ABB’s SF6 gas-insulated switchgear Ideally suited for voltages up to Longevity Top-quality materials and technology has been proving its 252kV, the modular ELK-14 range workmanship guarantee maximum life worth, day in, day out, for years. In combines innovation with well proven with a minimum of service and main-applications all over the world. It owes qualities: the features that have given tenance.its leading international position to a ABB GIS systems their international string of significant advantages. Like reputation. Economy Use of aluminium enclo-system security, for example. And reli- sures reduces the weight of the sys-able performance. And the fact that Safety The earthed metal enclosure tem, cutting the cost of foundations it’s economical and has an extremely guarantees maximum operational and load-bearing components.long service life, even under the safety.toughest conditions. Efficiency Prefabrication of subas-

Reliability All live parts are enclosed semblies and stringent quality control Apart from its many classical qualities, and effectively protects the insulation at our own factory simplify final the ELK-14 series boasts several very system against negative external influ- installation and commissioning.advanced features. With compact ences.architecture and fewer components, Environmently friendly Significant for example, it requires far less space Compactness The ELK-14 range reduction in number of flanges and than previous systems. Which simpli- is so well designed that it requires up seals, as well as a small compact fies operations and cuts costs from to 40% less space than previous GIS design.the moment you start using it. And systems.goes on doing so. ABB’s GIS systems Combine 3-phase technology are designed for future upgrading Flexibility The system’s modular Highest reliability together with high-because both main circuits and con- architecture permits individual solu- est compactness.trol & protection are totally modular. tions that can be adapted to changing Which means you can expand and needs at any time.adapt when you need to. Simply and efficiently. We call it systematised flexibility.

ABB switchgear systems offer maximum flexibility:because we draw on experience from the past to meet the needs of the future.

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The concept The approach The outlook

Improved performance in less space. Fewer components. Greater effi- Maximum system security with a For main circuits and control & pro- ciency. Plus another major benefit of minimum of maintenance. Another tection. That’s what makes ABB’s the new GIS generation from ABB: quality feature of the environment-ELK-14 technology so revolution- the state-of-the-art control & pro- friendly ELK-14 system. And ary. And because it needs up to 40% tection technology is open and com- because it’s modular, it can be ex-less space, it drastically cuts your pletely integrated. Which increases tended or adapted at any time to construction costs. And saves you the range of possible applications. meet your present and future operating costs at the same time. And makes it easier to operate. requirements.

The ELK-14 switchgear system from ABB:clear-cut advantages and outstanding qualities.

Control cubicle

Busbar with combined disconnector and earthing switch

Current transformer

Line disconnector with earthing switch

Voltage transformer

Fast acting earthing switch

Cable sealing end

Circuit breaker arcing chamber

Circuit breaker drive

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Perfect mixture of 1-phase and 3-phase technology

Finally, ABB’s product range also fea-Guarantee highest reliability together Like all ABB technology, the tures a collection of connecting ele-with highest compactness. The bay is disconnectors and earthing switches ments in various shapes and sizes completely factory tested and shipped are designed to meet present and which enable our substations to be within one container per bay. future needs. In terms of construc-adapted to virtually any customers tion and design as well as system requirement.safety.

Enhanced performance and lower ABB’s GIS range also includes current maintenance – that’s the simple prin- and voltage transformers which are as ciple behind ABB’s high-voltage cir- efficient as they are economical, and cuit-breakers. Designed for maximum leave nothing to be desired in terms efficiency with quality in mind. of service life.

High-performance circuit-breakers

Save disconnectors and earthing switches

Reliable current and voltage transformers

Versatile connecting elements

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The concept The approach The outlook

Improved performance in less space. Fewer components. Greater effi- Maximum system security with a For main circuits and control & pro- ciency. Plus another major benefit of minimum of maintenance. Another tection. That’s what makes ABB’s the new GIS generation from ABB: quality feature of the environment-ELK-14 technology so revolution- the state-of-the-art control & pro- friendly ELK-14 system. And ary. And because it needs up to 40% tection technology is open and com- because it’s modular, it can be ex-less space, it drastically cuts your pletely integrated. Which increases tended or adapted at any time to construction costs. And saves you the range of possible applications. meet your present and future operating costs at the same time. And makes it easier to operate. requirements.

The ELK-14 switchgear system from ABB:clear-cut advantages and outstanding qualities.

Control cubicle

Busbar with combined disconnector and earthing switch

Current transformer

Line disconnector with earthing switch

Voltage transformer

Fast acting earthing switch

Cable sealing end

Circuit breaker arcing chamber

Circuit breaker drive

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4

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Perfect mixture of 1-phase and 3-phase technology

Finally, ABB’s product range also fea-Guarantee highest reliability together Like all ABB technology, the tures a collection of connecting ele-with highest compactness. The bay is disconnectors and earthing switches ments in various shapes and sizes completely factory tested and shipped are designed to meet present and which enable our substations to be within one container per bay. future needs. In terms of construc-adapted to virtually any customers tion and design as well as system requirement.safety.

Enhanced performance and lower ABB’s GIS range also includes current maintenance – that’s the simple prin- and voltage transformers which are as ciple behind ABB’s high-voltage cir- efficient as they are economical, and cuit-breakers. Designed for maximum leave nothing to be desired in terms efficiency with quality in mind. of service life.

High-performance circuit-breakers

Save disconnectors and earthing switches

Reliable current and voltage transformers

Versatile connecting elements

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ABB‘s standardised local control concept

The local control cubicle is based on Functions Featuresthe Bay Control Solution concept BCS

! !Feeder and station interlocking, Representation of the single-line as a comprehensive scalable solution depending on the position of all diagram including position indica-for control cubicles. The BCS is suit-

high-voltage apparatusses with tion of all primary apparatusses able for all types of switchgear used in their blocking functionality such as circuit-breaker, transmission and subtransmission sys-

disconnectors and earthing switches tems and every possible busbar con- ! Blocking of commands when figuration. The BCS includes all !crank handle of disconnectors or Integrated local/remote key switch required functions for control and earthing switches is introduced.

! Alarm unit for 16 feeder alarms e.g. supervision of a complete GIS as well

! Extensive circuit-breaker super- gas alarm, DC and AC supervisionas the marshalling of all connections

vision through “Anti-pumping”, to and from the GIS bays.

pump and hydraulic system super-vision, operation counter for cir-Safe station operation is ensured cuit-breaker and pumps. through following base functions.

! Gas density and position super-vision of circuit-breaker.

! Supervision of pole discrepancy for circuit-breaker

The local control cubicle is fitted with On customer’s request additional pre-wired interface terminal blocks functions (optional) can be pro-for the connection to feeder and sta- vided.tion protection. This interface

Standardised plug connections includes all needed measuring values instead of terminal connections are of the feeder as well as protection trip available.1, trip 2 and signals from the auto-

reclose system. Additional prewired terminal groups are provided for the connection to remote control systems and remote alarm systems.

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ABB‘s standardised local control concept

The local control cubicle is based on Functions Featuresthe Bay Control Solution concept BCS

! !Feeder and station interlocking, Representation of the single-line as a comprehensive scalable solution depending on the position of all diagram including position indica-for control cubicles. The BCS is suit-

high-voltage apparatusses with tion of all primary apparatusses able for all types of switchgear used in their blocking functionality such as circuit-breaker, transmission and subtransmission sys-

disconnectors and earthing switches tems and every possible busbar con- ! Blocking of commands when figuration. The BCS includes all !crank handle of disconnectors or Integrated local/remote key switch required functions for control and earthing switches is introduced.

! Alarm unit for 16 feeder alarms e.g. supervision of a complete GIS as well

! Extensive circuit-breaker super- gas alarm, DC and AC supervisionas the marshalling of all connections

vision through “Anti-pumping”, to and from the GIS bays.

pump and hydraulic system super-vision, operation counter for cir-Safe station operation is ensured cuit-breaker and pumps. through following base functions.

! Gas density and position super-vision of circuit-breaker.

! Supervision of pole discrepancy for circuit-breaker

The local control cubicle is fitted with On customer’s request additional pre-wired interface terminal blocks functions (optional) can be pro-for the connection to feeder and sta- vided.tion protection. This interface

Standardised plug connections includes all needed measuring values instead of terminal connections are of the feeder as well as protection trip available.1, trip 2 and signals from the auto-

reclose system. Additional prewired terminal groups are provided for the connection to remote control systems and remote alarm systems.

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The circuit-breaker Features Breaker design

!Over the years, the circuit-breaker Reliable making and breaking Each circuit-breaker in the ELK-14 using SF6-gas for insulation and capacity for heavy load and GIS comprises three single-phase quenching purposes, has been con- short-circuit currents metal enclosed breaker poles. Each tinuously developed and improved. pole consists of the operating mech-

! Easy access to active parts for Extensive operating experiences as anism, the interrupter column with inspection and overhaulwell as continuous research and 1 interrupting chamber and the

! Low noise leveldevelopment activities are the basis enclosure with the basic support when anticipating future market ! structure. In case of an overhaul, Maintenance-free designrequirements. the interrupter column can easily be

! Separate contact system for con-removed from the enclosure.

tinuous current and current inter-ruption The circuit-breaker is of the single-

! High dielectric withstand in open pressure type and works on the well and closed position proven puffer principle. During an

interruption, a compression piston ! Single-phase auto-reclosing

in the chamber generates the SF6-! Compact hydraulic spring operat- gas pressure required to extinguish

ing mechanism the arc between the contacts. ! Continuous self-supervision of

hydraulic system

! No external hydraulic piping

! Type tested according latest IEC and ANSI standards

ABB high-voltage circuit-breaker for solid, improved performance and less maintenance.

It guarantees easy access to all com- reservoir. The circuit-breaker moves Circuit-breaker operating ponents inside the drive for overhaul than to open position where it will be mechanismand repair. Sealing of the pressure retained due to the hydraulic pressure.

Each pole of the circuit-breaker is operated hydraulic circuit against the For closing the circuit-breaker, the equipped with the hydraulic spring atmosphere is achieved entirely by change-over valve connects the bottom operating mechanism. It combines highly reliable static seals. side of the output piston to the high-the advantages of the hydraulic oper- pressure reservoir after actuation of the ating mechanism with those of the closing coil. Now, both sides of the out-

Working principlespring energy storage type. The com- put piston are connected to the high pact, modular design of the circuit- pressure and the circuit-breaker is mov-A hydraulic pump moves oil from breaker operating mechanism, con- ing to it’s closed position due to the the low pressure reservoir to the sisting of differential pressure principle.high pressure side of the energy

storage piston, connected to the disc ! The housing

springs. The output piston, which is ! Position indicator connected to the operating rod of ! the circuit-breaker column, is con-Power-pack for energy storage

trolled by a change-over valve. For without any kind of external opening, it switches hydraulically to hydraulic pipethe open position after the trip coil

! Monitoring module for control is actuated for opening the breaker

purpose and connects the bottom side of the output piston with the low pressure

Circuit-breaker

Schematic diagram (working principle)

Hydraulic spring operating mechanism

High pressure

Low pressure

Active parts under hight-voltage

Enclosure

SF6-gas

Insulation material

Mechanical parts, structures

Low-voltage parts

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The circuit-breaker Features Breaker design

!Over the years, the circuit-breaker Reliable making and breaking Each circuit-breaker in the ELK-14 using SF6-gas for insulation and capacity for heavy load and GIS comprises three single-phase quenching purposes, has been con- short-circuit currents metal enclosed breaker poles. Each tinuously developed and improved. pole consists of the operating mech-

! Easy access to active parts for Extensive operating experiences as anism, the interrupter column with inspection and overhaulwell as continuous research and 1 interrupting chamber and the

! Low noise leveldevelopment activities are the basis enclosure with the basic support when anticipating future market ! structure. In case of an overhaul, Maintenance-free designrequirements. the interrupter column can easily be

! Separate contact system for con-removed from the enclosure.

tinuous current and current inter-ruption The circuit-breaker is of the single-

! High dielectric withstand in open pressure type and works on the well and closed position proven puffer principle. During an

interruption, a compression piston ! Single-phase auto-reclosing

in the chamber generates the SF6-! Compact hydraulic spring operat- gas pressure required to extinguish

ing mechanism the arc between the contacts. ! Continuous self-supervision of

hydraulic system

! No external hydraulic piping

! Type tested according latest IEC and ANSI standards

ABB high-voltage circuit-breaker for solid, improved performance and less maintenance.

It guarantees easy access to all com- reservoir. The circuit-breaker moves Circuit-breaker operating ponents inside the drive for overhaul than to open position where it will be mechanismand repair. Sealing of the pressure retained due to the hydraulic pressure.

Each pole of the circuit-breaker is operated hydraulic circuit against the For closing the circuit-breaker, the equipped with the hydraulic spring atmosphere is achieved entirely by change-over valve connects the bottom operating mechanism. It combines highly reliable static seals. side of the output piston to the high-the advantages of the hydraulic oper- pressure reservoir after actuation of the ating mechanism with those of the closing coil. Now, both sides of the out-

Working principlespring energy storage type. The com- put piston are connected to the high pact, modular design of the circuit- pressure and the circuit-breaker is mov-A hydraulic pump moves oil from breaker operating mechanism, con- ing to it’s closed position due to the the low pressure reservoir to the sisting of differential pressure principle.high pressure side of the energy

storage piston, connected to the disc ! The housing

springs. The output piston, which is ! Position indicator connected to the operating rod of ! the circuit-breaker column, is con-Power-pack for energy storage

trolled by a change-over valve. For without any kind of external opening, it switches hydraulically to hydraulic pipethe open position after the trip coil

! Monitoring module for control is actuated for opening the breaker

purpose and connects the bottom side of the output piston with the low pressure

Circuit-breaker

Schematic diagram (working principle)

Hydraulic spring operating mechanism

High pressure

Low pressure

Active parts under hight-voltage

Enclosure

SF6-gas

Insulation material

Mechanical parts, structures

Low-voltage parts

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There are many good reasons for trusting ABB’s know-how.And that applies to disconnectors and earthing switches, too.

The disconnector/earthing switch

!The operating mechanism is of mod- Insulated earth connection allows ular design, which enables highest measurements without opening service friendliness and rapid replace- gas compartment

The disconnector/earthing switch is ment of complete drive modules. In ! Manual operation by hand crank

based on 3-phase technology and addition, the complete busbar mod- possiblecombines two functions – a ule can be replaced in one step ensur-

! Reliable 3-pole operating mecha-disconnector and a maintenance ing minimized time for repair.nismearthing switch – in one common 3-

phase enclosure, sharing one com- Features ! One drive only for both functionsmon operating mechanism.

! Location of drive unit outside SF6-! Reliable SF6-gas insulation across gas compartmentDue to the modular design of the the isolation distance

disconnector/earthing switch, every ! Separated mechanically coupled ! Reliable switching capacity for kind of variant can be realized in a position indicator for each func-small capacitive currents and bus-compact design. tiontransfer currents

! Viewing port for checking position ! High capacity for carrying rated The disconnector/earthing switch is and condition of contactsand short-circuit currentspart of the busbar module. This

!busbar module is usually equipped Fully type-tested for conformity to ! Space-saving combination of with an expansion element, which latest IEC and ANSI standardsdisconnector and earthing switchguarantees flexible and elastic cou-

! Mechanical interlocking between pling of every kind of bay type.disconnector and earthing switch

The fast acting earthing switch !The operating mechanism is from com- Insulated operating mechanismpact design, which enables high service

! Capable of switching induced The fast acting earthing switch is used friendliness and rapid replacement of capacitive and inductive currentsto earth insulated sections of the the drive unit without opening the gas

! Fast linear contact motion by installation to protect personnel during compartment.spring-loaded drive for “Close” overhaul and assembly work. But it is operationalso employed for earthing capacitance The fast “Close”-operation is spring

(cables, transmission lines, etc.). The actuated. After a closing command, the ! Manual operation by hand crank earthing switch can be mounted at any electric motor and the rotating shafts possibleposition and to any module by use of will compress the springs. After reach-

! Location of drive unit outside the an support insulator, thus ensuring the ing the required state of charge, they SF6-gasgreatest flexibility in switchgear layout. are automatically released. The spring

!remains released until the next closing Position indicator mechanically cou-The controlled “Open”-operation command is activated. pled to the moving contactresults from a slow linear contact

! Viewing ports for checking position motion directly driven by an elec-tric Features and condition of contactsmotor.

! !Reliable earthing of main circuit Safety elements such as padlocks The fast acting earthing switch is based can be provided

! High short-circuit current carrying on 3-phase technology in one com-

!capacity in closed position Fully type-tested for conformity to mon enclosure, sharing one common

latest IEC and ANSI standards! High short-circuit current making operating mechanism.

capability

Disconnector/earthing switch and functional variants Fast-acting earthing switch

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There are many good reasons for trusting ABB’s know-how.And that applies to disconnectors and earthing switches, too.

The disconnector/earthing switch

!The operating mechanism is of mod- Insulated earth connection allows ular design, which enables highest measurements without opening service friendliness and rapid replace- gas compartment

The disconnector/earthing switch is ment of complete drive modules. In ! Manual operation by hand crank

based on 3-phase technology and addition, the complete busbar mod- possiblecombines two functions – a ule can be replaced in one step ensur-

! Reliable 3-pole operating mecha-disconnector and a maintenance ing minimized time for repair.nismearthing switch – in one common 3-

phase enclosure, sharing one com- Features ! One drive only for both functionsmon operating mechanism.

! Location of drive unit outside SF6-! Reliable SF6-gas insulation across gas compartmentDue to the modular design of the the isolation distance

disconnector/earthing switch, every ! Separated mechanically coupled ! Reliable switching capacity for kind of variant can be realized in a position indicator for each func-small capacitive currents and bus-compact design. tiontransfer currents

! Viewing port for checking position ! High capacity for carrying rated The disconnector/earthing switch is and condition of contactsand short-circuit currentspart of the busbar module. This

!busbar module is usually equipped Fully type-tested for conformity to ! Space-saving combination of with an expansion element, which latest IEC and ANSI standardsdisconnector and earthing switchguarantees flexible and elastic cou-

! Mechanical interlocking between pling of every kind of bay type.disconnector and earthing switch

The fast acting earthing switch !The operating mechanism is from com- Insulated operating mechanismpact design, which enables high service

! Capable of switching induced The fast acting earthing switch is used friendliness and rapid replacement of capacitive and inductive currentsto earth insulated sections of the the drive unit without opening the gas

! Fast linear contact motion by installation to protect personnel during compartment.spring-loaded drive for “Close” overhaul and assembly work. But it is operationalso employed for earthing capacitance The fast “Close”-operation is spring

(cables, transmission lines, etc.). The actuated. After a closing command, the ! Manual operation by hand crank earthing switch can be mounted at any electric motor and the rotating shafts possibleposition and to any module by use of will compress the springs. After reach-

! Location of drive unit outside the an support insulator, thus ensuring the ing the required state of charge, they SF6-gasgreatest flexibility in switchgear layout. are automatically released. The spring

!remains released until the next closing Position indicator mechanically cou-The controlled “Open”-operation command is activated. pled to the moving contactresults from a slow linear contact

! Viewing ports for checking position motion directly driven by an elec-tric Features and condition of contactsmotor.

! !Reliable earthing of main circuit Safety elements such as padlocks The fast acting earthing switch is based can be provided

! High short-circuit current carrying on 3-phase technology in one com-

!capacity in closed position Fully type-tested for conformity to mon enclosure, sharing one common

latest IEC and ANSI standards! High short-circuit current making operating mechanism.

capability

Disconnector/earthing switch and functional variants Fast-acting earthing switch

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ABB voltage and current transformers offer maximum safety and longevity. Combining practicality with total reliability.

The voltage transformer Features

!Used for system protection or reve- Utilisation of SF6-gas as insulating ! Separate gas volume with den-sity nue metering, ABB’s powerful trans- medium, together with plastic foil in monitoring formers give years of trouble-free the windings

! Over-pressure relief device pro-service. Even for heavy-duty applica-

! High secondary output and accu- videdtions. They are based on the electro- racy

! Maintenance freemagnetic transformer principle, ! Ratio and number of secondary where primary and secondary wind- ! Secondary fuses on request

windings according to actual GIS ings are galvanically separated from plant requirementsone another.

! Effective damping of very fast tran-The 3-pole inductive voltage trans- sients, transmitted to the sec-ondary formers are connected to the sideswitchgear with a standardised con-

! Rectangular type core of low loss necting flange and a barrier insulator. magnetic sheets The primary winding is wound on

!top of the core and the secondary No ferroresonance possible in windings. The secondary windings are absence of circuit-breaker grad-ing connected to the terminals in the capacitorsexternal terminal box through a gas-tight multiple bushing.

The current transformer Features

! !The ring core current transformers Simple ring-core type windings The ring cores are integral parts concentrically enclose the primary integrated in the main current path of the split-up moduleconductor. The current transformer

! !SF6-gas as main insulation accord- Efficient damping of the very fast are placed in a common enclosure, ing to ABB’s well-proved-GIS tech- transients transmitted to the sec-which represents the interface mod- nique ondary sideule from 3-phase to the 1-phase

! !Maintenance-free Any accuracy class defined by design.international standards is possible

! Secondary windings on split ring-cores, located inside of the SF6-gas compartment and mechanically protected

Voltage transformer Current transformer

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ABB voltage and current transformers offer maximum safety and longevity. Combining practicality with total reliability.

The voltage transformer Features

!Used for system protection or reve- Utilisation of SF6-gas as insulating ! Separate gas volume with den-sity nue metering, ABB’s powerful trans- medium, together with plastic foil in monitoring formers give years of trouble-free the windings

! Over-pressure relief device pro-service. Even for heavy-duty applica-

! High secondary output and accu- videdtions. They are based on the electro- racy

! Maintenance freemagnetic transformer principle, ! Ratio and number of secondary where primary and secondary wind- ! Secondary fuses on request

windings according to actual GIS ings are galvanically separated from plant requirementsone another.

! Effective damping of very fast tran-The 3-pole inductive voltage trans- sients, transmitted to the sec-ondary formers are connected to the sideswitchgear with a standardised con-

! Rectangular type core of low loss necting flange and a barrier insulator. magnetic sheets The primary winding is wound on

!top of the core and the secondary No ferroresonance possible in windings. The secondary windings are absence of circuit-breaker grad-ing connected to the terminals in the capacitorsexternal terminal box through a gas-tight multiple bushing.

The current transformer Features

! !The ring core current transformers Simple ring-core type windings The ring cores are integral parts concentrically enclose the primary integrated in the main current path of the split-up moduleconductor. The current transformer

! !SF6-gas as main insulation accord- Efficient damping of the very fast are placed in a common enclosure, ing to ABB’s well-proved-GIS tech- transients transmitted to the sec-which represents the interface mod- nique ondary sideule from 3-phase to the 1-phase

! !Maintenance-free Any accuracy class defined by design.international standards is possible

! Secondary windings on split ring-cores, located inside of the SF6-gas compartment and mechanically protected

Voltage transformer Current transformer

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ABB ELK-14: a system with unique adaptability. That goes for the connecting elements, too.

Switching systems need to be as varied different connections. Especially dur-as the purposes for which they are ing erection, the expansion element intended. Which is why ABB supplies ensures an easy and flexile coupling of connecting elements in all shapes and two neighboured bays.sizes: cross-shaped and T-elements, as

The expansion element can be applied well as simple straight sections, are the to nearly all modules and provides links that join up individual GIS com-proper dismantling of modules.ponents.

As might be expected, ABB’s GIS The ELK-14 provides an universal range includes the connecting ele-expansion element, which allows heat ments for peripherals such as the SF6-expansion, vibrations during operation air bushings, the enclosures for the and prevents from being sensitive cable terminations and the enclosures against tolerances in the length of for the transformer terminals.

The cable termination The SF6-air bushing

!Cable connections are available for The GIS and the high-voltage cable The SF6-air bushings are available in fluid-filled or dry type cone insulators, can be galvanically separated and two different versions: with classical which are part of the cable manufac- their respective voltage tests be porcelain insulators or in the standard turer’s scope of supply. carried out independently version, with fibre-reinforced resin

insulators with silicon sheds, with the ! Relatively small size of the sealing

Features following features.ends, the advantages of XLPE cable can be fully exploited

! Interface according IEC 60859 Features!(1999) for fluid-filled or dry type Maintenance-free

!cable-terminations High creepage current resistivity

! !Compact, simple design Self-cleaning silicon sheds

! !All fitting positions possible Single pressure SF6-gas insulaion

! Explosion and vandal-proof

! Resistivity against sandstorms

! All fitting positions possible

! Low weight

! Maintenance-free

Connecting element (straight)

Connecting element (straight with flange)

Connecting element (L-element)

Connecting element (cross-shaped)Cable connection SF6-air bushing

14 15

ABB ELK-14: a system with unique adaptability. That goes for the connecting elements, too.

Switching systems need to be as varied different connections. Especially dur-as the purposes for which they are ing erection, the expansion element intended. Which is why ABB supplies ensures an easy and flexile coupling of connecting elements in all shapes and two neighboured bays.sizes: cross-shaped and T-elements, as

The expansion element can be applied well as simple straight sections, are the to nearly all modules and provides links that join up individual GIS com-proper dismantling of modules.ponents.

As might be expected, ABB’s GIS The ELK-14 provides an universal range includes the connecting ele-expansion element, which allows heat ments for peripherals such as the SF6-expansion, vibrations during operation air bushings, the enclosures for the and prevents from being sensitive cable terminations and the enclosures against tolerances in the length of for the transformer terminals.

The cable termination The SF6-air bushing

!Cable connections are available for The GIS and the high-voltage cable The SF6-air bushings are available in fluid-filled or dry type cone insulators, can be galvanically separated and two different versions: with classical which are part of the cable manufac- their respective voltage tests be porcelain insulators or in the standard turer’s scope of supply. carried out independently version, with fibre-reinforced resin

insulators with silicon sheds, with the ! Relatively small size of the sealing

Features following features.ends, the advantages of XLPE cable can be fully exploited

! Interface according IEC 60859 Features!(1999) for fluid-filled or dry type Maintenance-free

!cable-terminations High creepage current resistivity

! !Compact, simple design Self-cleaning silicon sheds

! !All fitting positions possible Single pressure SF6-gas insulaion

! Explosion and vandal-proof

! Resistivity against sandstorms

! All fitting positions possible

! Low weight

! Maintenance-free

Connecting element (straight)

Connecting element (straight with flange)

Connecting element (L-element)

Connecting element (cross-shaped)Cable connection SF6-air bushing

14 15

The GIS from ABB: uniquely variable, invariably unique.

Innovative technology, intelligence satisfy your expectations. and flexibility, combined with the very Constructive and creative, economi-highest quality: these are the outstand- cal and ecologically sound. Because ing features of the successful ELK-14 it’s as well thought-out as it’s mature. range. It satisfies all the latest interna- And can be used for virtually any tional standards and will more than application.

Examples

! Switching systems requiring an unusually high degree of safety

! Indoor switching systems designed to take up a minimum of space

! Protected installations exposed to unusually dirty, polluted or corrosive environments (e.g. coastline locations, deserts or industrial zones).

! In underground switching systems for hydro-electric and pump-fed power stations

! Extension of conventional outdoor substations with limited space

! Upgrading the voltage level of exist-ing conventional substations without the need for more space

! Hybrid solutions combining dead tank and live tank components to reduce dimensions.

Single busbar bay with SF6-air bushings

Double busbar bay with cable connections

Section of a 1½-breaker arrangement

16 17

The GIS from ABB: uniquely variable, invariably unique.

Innovative technology, intelligence satisfy your expectations. and flexibility, combined with the very Constructive and creative, economi-highest quality: these are the outstand- cal and ecologically sound. Because ing features of the successful ELK-14 it’s as well thought-out as it’s mature. range. It satisfies all the latest interna- And can be used for virtually any tional standards and will more than application.

Examples

! Switching systems requiring an unusually high degree of safety

! Indoor switching systems designed to take up a minimum of space

! Protected installations exposed to unusually dirty, polluted or corrosive environments (e.g. coastline locations, deserts or industrial zones).

! In underground switching systems for hydro-electric and pump-fed power stations

! Extension of conventional outdoor substations with limited space

! Upgrading the voltage level of exist-ing conventional substations without the need for more space

! Hybrid solutions combining dead tank and live tank components to reduce dimensions.

Single busbar bay with SF6-air bushings

Double busbar bay with cable connections

Section of a 1½-breaker arrangement

16 17

30

30

16

80

6265

40

25

ABB ELK-14 solutions offer improved performance, better design and more practicality. At a fraction of the cost.

Main data

Rated voltage kV up to 253

Power-frequency withstand voltage, 1 min kV 460

Power-frequency withstand voltage,1 min. across open contacts kV 530

Lightning impulse withstand voltage kV 1050

Lightning impulse withstand voltageacross open contacts kV 1200

Rated frequency Hz 50/60

Rated continuous current A 3150

Rated short-time withstand current, 3 s kA 50

Rated withstand impulse current kA 135

Circuit-breaker

First pole-to-clear factor 1.3/1.5

Rated breaking current, 50/60 Hz kA 50

Rated making current, peak value kA 135

Drive type Hydraulic spring

Rated opening time ms ≤21

Rated breaking time ms ≤40

Rated closing time ms ≤60

Auto reclosing dead time ms ≤300

Rated operating sequence O - 0.3s - CO - 1min - CO

High-speed auto-reclosing single- and three-phase

Disconnector & earthing switch

Capacitive current switching capability mA 250

Bus transfer current switching capability A/V 1600/20

Fast-acting earthing switch

Switching performanceMaking capacity- Current kA 50

Inductive currents- Voltage kV 2- Current A 80

Capacitive currents- Voltage kV 12- Current A 3

Voltage transformer

Rated output (total) VA 250

Rated accuracy class (IEC 186) 0.2s

Rated thermal power (total) VA 1000

Rated voltage factor (IEC 186) 1.5/30s

Number of secondary windings 1 or 2 or 3

Current transformer

Cores for metering

Cores for protection (transient performance optional)

SF6 air bushing

Continuous bending load N 4000

Test bending load N 6000

Creepage distance mm/kV 31

-

The above specifications are not limits. Additional information available on request. Technical specifications and data subject to change without notice.

ELK-14 double busbar bay

Control & protection

Circuit-breakers

Disconnectors and earthing switches

Current and voltage transformers

Connecting elements

Modules

18 19

30

30

16

80

6265

40

25

ABB ELK-14 solutions offer improved performance, better design and more practicality. At a fraction of the cost.

Main data

Rated voltage kV up to 253

Power-frequency withstand voltage, 1 min kV 460

Power-frequency withstand voltage,1 min. across open contacts kV 530

Lightning impulse withstand voltage kV 1050

Lightning impulse withstand voltageacross open contacts kV 1200

Rated frequency Hz 50/60

Rated continuous current A 3150

Rated short-time withstand current, 3 s kA 50

Rated withstand impulse current kA 135

Circuit-breaker

First pole-to-clear factor 1.3/1.5

Rated breaking current, 50/60 Hz kA 50

Rated making current, peak value kA 135

Drive type Hydraulic spring

Rated opening time ms ≤21

Rated breaking time ms ≤40

Rated closing time ms ≤60

Auto reclosing dead time ms ≤300

Rated operating sequence O-0.3s-CO-1min-CO

High-speed auto-reclosing single- and three-phase

Disconnector & earthing switch

Capacitive current switching capability mA 250

Bus transfer current switching capability A/V 1600/20

Fast-acting earthing switch

Switching performanceMaking capacity- Current kA 50

Inductive currents- Voltage kV 2- Current A 80

Capacitive currents- Voltage kV 12- Current A 3

Voltage transformer

Rated output (total) VA 250

Rated accuracy class (IEC 186) 0.2s

Rated thermal power (total) VA 1000

Rated voltage factor (IEC 186) 1.5/30s

Number of secondary windings 1 or 2 or 3

Current transformer

Cores for metering

Cores for protection (transient performance optional)

SF6 air bushing

Continuous bending load N 4000

Test bending load N 6000

Creepage distance mm/kV 31

-

The above specifications are not limits. Additional information available on request. Technical specifications and data subject to change without notice.

ELK-14 double busbar bay

Control & protection

Circuit-breakers

Disconnectors and earthing switches

Current and voltage transformers

Connecting elements

Modules

18 19

ABB Huadian High Voltage Switchgear (Xiamen) Co.,Ltd

Guanghui Building, 6# Chuangxin 3rd Road,

Torch Hi-Tech Development Zone, Xiamen, 361006, Fujian, P.R.China

Phone: +86 592 5710330

Fax: +86 592 5710331

Website: http://www.abb.com

Note:We reserve the right to make changes or modify the contents of this document without prior notice.

We reserve all rights in this document and in the subject matter and illustrations contained therein. Any reproduction-in whole or in parts-is for bidden without ABB’s prior written consent.

Copyright 2008 ABBAll rights reserved

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