IEC Medium Voltage Switchgear Type xGear
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IEC Medium Voltage Switchgear Type xGear TM Assembled locally by Eaton approved partners to International Standards, meeting local requirements
Transcript of IEC Medium Voltage Switchgear Type xGear
IEC Medium Voltage Switchgear Type xGearTM
Assembled locally by Eaton approved partners to International Standards, meeting local requirements
Presenter
Presentation Notes
Eaton’s newest range of IEC Withdrawable Medium Voltage Switchgear. xGear is the latest product introduction to the family of Power Distribution and Control enclosure systems designed specifically for Panelbuilders. Complimenting its “sister” product xEnergy in the Low Voltage sector, xGear provides an high specification Medium Voltage Air Insulated Switchgear and Control platform that will enable a Panelbuilder to service their local market needs.
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Presentation Contents
• Definition • Applications • Eaton’s Core Technologies • xGearTM MV Switchgear
Presenter
Presentation Notes
The presentation will cover the following topics.
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Definition
• Medium Voltage Switchgear • Air Insulated • Single Busbar • Ratings
• 12kV up to 31/5kA-3s, 3150A • 17.5kV up to 31/5kA-3s, 3150A
• IEC 62271-200 Third Party Certified
What is xGearTM ?
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Typical xGearTM Applications Medium Voltage Switchgear
and Controlgear Primary/Secondary Switchgear
& Motor Control In
Minerals Utility Networks
Process Industries Commercial Construction Pharmaceutical Industries
Water & Waste Water Treatment Infrastructure Construction Projects
Core Technologies
Vacuum Interrupters Vacuum Circuit Breakers Epoxy Resin (Solid) Insulation Integrated System Manufacturer
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Core Technologies – Fully Integrated Manufacturer
Eaton is one of the few global fully integrated manufacturers of Medium Voltage equipment • Vacuum Interrupter
• Encapsulated Pole Unit
• Circuit Breakers
• Switchgear
• Protection & Control
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Core technologies – Vacuum Switching
• Vacuum technology • Safe • Reliable • Compact Design • Maintenance Free • > 30,000 Operations • Typical Switching Duty of 100 x Isc • Environmentally Friendly • Fully Recycled at End of Life
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Core Technologies – Cast Resin Encapsulation
• Durability • Protection from climatic conditions,
mechanical impact, moisture, humidly and dust
• High Performance • High thermal conductivity • High electrical resistivity • Low moisture absorption • High creepage current resistance • High mechanical strength
• Compact
Eaton’s Newest Range of MV Switchgear
xGearTM 12 – 12kV rated xGearTM 17– 17.5kV rated
Design Features
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Basic Construction
VCB Compartment
LV Compartment
Cabling Compartment
• Clear Control Functionality • Ample Protection Relay Space • Status Indication
• Clear Control Functionality • Visibility Window • Door Interlocked with circuit breaker/contactor
• Visibility Window • Ample cabling capacity • Door Interlock option with Earth Switch
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Basic Design Defined per IEC62271-200
• Loss of Service Continuity • LSC2B
• Partition Class • PM
• Internal Arc Classification • AFLR • (Operator, Front, Lateral, Rear)
• Ingress Protection • External IP4X • Internal IP2X
• Accessibility of Compartments • Cable:
• Interlocked Controlled / Procedure
• Circuit Breaker: • Interlocked Controlled
• Busbars: • Non-Accessible / Tool Based
Presenter
Presentation Notes
LSC2B PM is the way in which IEC62271-200 defines the basic construction of Medium Voltage Switchgear. LSC = Loss of Service Continuity 1 - LSC Category (Loss of Service Continuity) Clause 3.131: Category defining the possibility to keep other compartments and/or functional units energised when opening a main circuit compartment. LSC1: This form is not intended to provide service continuity during maintenance and may require complete disconnection of the switchgear from the system before accessing the interior of the enclosure. LSC2: This form is intended to allow maximum continuity of service of the switchgear during access to the compartments inside the switchgear LSC2A: When accessing components of one functional unit, the other functional units of the switchgear may be kept in service. LSC2B: In addition to the above LSC2A, in this category the incoming HV cables to the functional unit being accessed may be kept energised. xGear has the highest rating of LSC2B 2- PM = Metal Partitions Clause 3.109: Class defining whether metallic or non-metallic materials are used for the separation of functional units. The selection of partition class does not necessarily ensure personnel protection in the case of an internal arc in an adjacent functional unit. Class PM (3.109.1): Metal Partitions: Opened compartments are surrounded by metallic partitions and/or shutt3ers that are intended to be earthed. A shutter may or may not be in the opened compartment itself, provided that segregation is achieved between the components in the opened compartment and components in the adjacent compartments. The purpose is that no electric field is present in the opened compartment and no electrical field change may occur in the surrounding compartments. xGear has the highest rating of PM 2) IAC Classification: AFLR - A = Operator - F = Front - L = Lateral (Sides) - R = Rear
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Detailed Design 1
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Arc Chamber
Cable Terminations
Current Transformers
Busbar Compartment
Low-voltage Wire-way
Low-voltage Compartment
Circuit Breaker Compartment
Automatic Shutters
Earth Switch
Voltage Transformers
Earth Bar
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Arc Chamber
• Internal Arc Classification – AFLR • Power Xpert® UX has IAC ratings of
• 12kV & 17.5kV ratings: • 25kA-1s; 31.5kA-1s;
• Exhaust gasses are directed away from personnel by an integral Arc Chamber with optional extension pieces, wall flanges and grille to exhaust outside the switch-room
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Basic Design – Low-Voltage Compartment
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5 Earth Switch
Mimic Diagram
Voltage Detection System (VDS)
Breaker Position
Breaker Status
Protection Relay Indicators
Instruments
Low-voltage Compartment
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3 Low-voltage wire-way
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Presenter
Presentation Notes
The low-voltage compartment is clean, clear and easy to understand with all control and protection clearly visible to the operator. Each LV compartment is designed to suit each project and is versatile and has room for most demanding applications. There is ample space inside the compartment to mount control terminals and relays. �LV Control cabling can be from top or bottom, inter-connections can run in a dedicated closed LV wire-way mounted above the LV compartment and runs the full length of the switchgear line-up.
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Busbar Compartment
• Totally enclosed in earthed metal compartment which vents into the integral arc chamber.
• Fully insulated over entire length • Epoxy mouldings segregate
individual switchgear sections • 12kV and 17.5kV
• Up to 3150A natural cooing. • 3 second Short Circuit ratings
of: 25kA, 26.3kA, 31.5kA,
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Vacuum Power Switching Compartment
The Heart of the System: 1. Vacuum Circuit Breakers.
The W-VACi
2. Vacuum Contactors. The SL 400
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Presenter
Presentation Notes
ANIMATION FOR THIS SLIDE IS STARTED BY CLICKING ON THE PICTURE OF THE BREAKER COMPARTMENT. THE ANIMATION GIVES SHOWS HOW TO INSERT THE BREAKER INTO THE PANEL.
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Vacuum Power Switching Compartment 5
Viewing Window 9
10 Manual Circuit Breaker Operation
11 Circuit Breaker Racking Mechanism
Presenter
Presentation Notes
Viewing window provides visual indication of the position of the circuit breaker / contactor truck. Manual circuit breaker ‘Open/Close’ pushbutton, with selector to operate an extension arm to allow breaker operation in the Service Position. Manual circuit breaker / contactor truck racking mechanism
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Vacuum Power Switching Compartment
Safety Interlocks • Compartment door is interlocked with the
circuit breaker / contactor truck such that: • The unit cannot be racked in until the door
is closed…and • The door can not be opened when the unit
is in the Service position
• Breaker Secondary contact block interlocked such that: • It can only be removed when the unit is in
the Test position….and • The unit cannot operate unless it is plugged
in.
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Vacuum Circuit Breaker Type W-VACi: 12kV, 17.5kV, 24kV
• Industry leading vacuum and cast-resin insulation technology
• Conformance to latest IEC • Designed and tested to latest
IEC62271-100 standard
• Environmentally friendly design • Vacuum technology • ROHS compliance
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Vacuum Contactor Truck Type SL400
• Rated Voltage: 7.2kV • 200A Continuous Motor FLA • Easy fuse replacement • Fuse blown indication
• Withdrawable carriage consistent with W-VACi • Same interlocks • Same position indicators • Same racking mechanism
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Automatic Shutters
• Individually operated • Earthed Metal • Can be padlocked in closed
position • Colour coding & Text option • Shutter lifter option available
for testing purposes
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Circuit Earth Switch
• Operated from front of switchgear • ‘Closed/Open’ status visible from
front cable chamber window. • Status indication available on the
low-voltage compartment mimic • Mechanical interlock option with
the cable compartment door
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Circuit Earth Switch
• Safety Interlocks • Mechanical interlock with the circuit
breaker compartment such that: • Earth Switch cannot be ‘Closed’ with the
circuit breaker / contactor in the ‘Service’ position.
• Circuit breaker / contactor can only be moved from ‘Test – Disconnected’ to ‘Service’ position when Earth Switch is ‘Open’.
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Current Transformers
• Cast-resin, block-type CTs are offered as standard
• Up to 4 CTs per phase may be possible depending on rating
• Option for wire-wound CTs is available
• Ratings > 2500A are Cast-resin, ring-type
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Voltage Transformers
• Cable Side Cast Resin Voltage Transformers available in 3 options: • Fixed • Removable • Fully withdrawable behind
closed door with safety shutters
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Cable Terminations
• Cable Access/Entry Options: • Rear Access, Bottom Entry • Front Access, Bottom Entry • Rear Access, Top Entry
• Safety Interlocks: • Door cannot be opened until the
Earth Switch is CLOSED • Earth Switch cannot be OPENED
unless the door is closed.
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• Fault tested earth bar system
• Effective and easy connection to the station earth
• Runs vertically and horizontally in each section and connected to Earth Switches when provided
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New image
Earth Bar
Panel Configurations Truck Configurations
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Configurations
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xGearTM 12 – 17.5kV
kV 12 & 17.5 Busbar rated current A 1250, 2000, 3150 Short time current kA-3s 25, 26.3, 31.5, IAC kA-s 25-1, 31.5kA-1 Panel width mm 600, 800, 1000 Panel height mm 2200 / 2760* Circuit-Breakers: Rated current max A 630, 1250, 2000, 3150 Short time current kA-3s 25, 31.5
Technical data
* Height over the arc chamber
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Dimensions
Panel width 600 mm 800mm 1000mm 12 kV and 17.5 kV Max. rating 630 A / 1250 A 2000A 3150 A Depth 1320 1320 1500 Height (A) 2200 2200 2200 Height including Arc Chamber 2760 2760 2760
xGearTM providing value in all MV applications
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Main & Distribution Sub-stations
• Safe • Reliable • High Interruption Ratings • Automation / Smart Grid Ready • Low Environmental Impact helps
Utility gain ‘Green’ Credentials
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Infrastructure & Commercial Buildings
• Safe • Reliable • Compact • Global platform • Low Life Time Costs • Low Environmental Impact
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Heavy Industries & WW Treatment
• Safe • Reliable • Compact • Global platform • Low Life Time Costs • High Electrical Ratings • Low Environmental Impact
xGearTM Feature List
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xGearTM Safety features • Partition class-PM • Active mimic diagram • Integrated arc chamber • Voltage detection system • Accessibility of compartments • Loss of service continuity: LSC-2B; • Independently operated padlockable shutters • Vacuum & epoxy encapsulation technologies • Internal arc classification of AFLR to 31.5kA-1s • Viewing windows – breaker and cable compartment • Comprehensive list of mechanical & electrical interlocks • 3rd party tested and certified to latest IEC 62271-100 & 200
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xGearTM Reliability features
• Totally enclosed and insulated busbars • Minimum service checks compared to SF6 • Vacuum and epoxy encapsulation technologies • Fewer moving parts in pole units than SF6Accessibility of
compartments • 3rd party tested and certified to latest IEC 62271-100 & 200 • 20,000 operations (tests ongoing for some ratings to 30,000
operations) • Diffuse discharge technology on VI contacts nearly eliminates
contact wear
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xGearTM Other valued features Rugged Robust Design • Integrated arc chamber • Cable entry top or bottom • Up to 6 cables per phase • Cable access front or rear • ISC-2B; partition class = PM • Fault tested earth bar system • Robust, maintenance free design • Ingress of foreign objects IP4X Compact • 1320 and 1500 mm depths • 600, 800, and 1000 mm widths
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xGearTM Other valued features
Low lifetime costs • Compact • No SF6 pressure checks • Back to wall configuration • Front or rear cable access • Low end of life disposal costs • Robust, maintenance free design • Secondary cable wire-way runs total length of panels • Vacuum interrupter contact designs prevent hot spots • Top or bottom cable entry w/ up to 6 cables per phase
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xGearTM Other valued features Low environmental impact • SF6 Free • Low energy loss during operation • Use only re-usable and recyclable materials • No special requirements for end of life disposal
High ratings • 17.5kV up to 4000A • Up to 30,000 operations • 25-3, 26.3-3, 31.5-3 short circuit withstand ratings
xGearTM A truly global product assembled locally through Eaton approved partners, meeting local requirements and international standards.
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