IEC Medium Voltage Switchgear Type xgear TM Assembled locally by Eaton approved partners to International Standards, meeting local requirements
Presentation Contents Definition Applications Eaton s Core Technologies xgear TM MV Switchgear 2 2
Definition What is xgear TM? 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 3 3
Typical xgear TM 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 4 4
Core Technologies Vacuum Interrupters Vacuum Circuit Breakers Epoxy Resin (Solid) Insulation Integrated System Manufacturer
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 6 6
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 7 7
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 8 8
Eaton s Newest Range of MV Switchgear xgear TM 12 12kV rated xgear TM 17 17.5kV rated
Design Features
Basic Construction LV Compartment VCB Compartment Clear Control Functionality Ample Protection Relay Space Status Indication Clear Control Functionality Visibility Window Door Interlocked with circuit breaker/contactor Cabling Compartment Visibility Window Ample cabling capacity Door Interlock option with Earth Switch 11 11
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 12 12
Detailed Design 1 2 3 4 5 6 7 8 9 10 11 Arc Chamber Low-voltage Wire-way Low-voltage Compartment Busbar Compartment Circuit Breaker Compartment Automatic Shutters Earth Switch Current Transformers Voltage Transformers Cable Terminations Earth Bar 13 13
1 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 14 14
3 Basic Design Low-Voltage Compartment Low-voltage Compartment 1 2 Low-voltage wire-way Protection Relay 2 Indicators Mimic Diagram 3 6 Breaker Position Instruments 4 7 Breaker Status Voltage Detection System (VDS) 5 8 Earth Switch 15 15
4 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, 16 16
5 Vacuum Power Switching Compartment The Heart of the System: 1. Vacuum Circuit Breakers. The W-VACi 2. Vacuum Contactors. The SL 400 17 17
5 Vacuum Power Switching Compartment 9 Viewing Window 10 Manual Circuit Breaker Operation 11 Circuit Breaker Racking Mechanism 18 18
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. 19 19
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 20 20
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 21 21
6 Automatic Shutters Individually operated Earthed Metal Can be padlocked in closed position Colour coding & Text option Shutter lifter option available for testing purposes 22 22
7 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 23 23
7 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. 24 24
8 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 Castresin, ring-type 25 25
9 Voltage Transformers Cable Side Cast Resin Voltage Transformers available in 3 options: Fixed Removable Fully withdrawable behind closed door with safety shutters 26 26
10 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. 27 27
11 Earth Bar 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 New image 28 28
Panel Configurations Truck Configurations
Configurations 30 30
xgear TM 12 17.5kV Technical data 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* * Height over the arc chamber Circuit-Breakers: Rated current max A 630, 1250, 2000, 3150 Short time current ka-3s 25, 31.5 31 31
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 32 32
xgear TM providing value in all MV applications
Main & Distribution Sub-stations Safe Reliable High Interruption Ratings Automation / Smart Grid Ready Low Environmental Impact helps Utility gain Green Credentials 34 34
Infrastructure & Commercial Buildings Safe Reliable Compact Global platform Low Life Time Costs Low Environmental Impact 35 35
Heavy Industries & WW Treatment Safe Reliable Compact Global platform Low Life Time Costs High Electrical Ratings Low Environmental Impact 36 36
xgear TM Feature List
xgear TM 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 38 38
xgear TM 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 39 39
xgear TM 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 40 40
xgear TM 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 41 41
xgear TM 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 3150A Up to 30,000 operations 25-3, 26.3-3, 31.5-3 short circuit withstand ratings 42 42
xgear TM A truly global product assembled locally through Eaton approved partners, meeting local requirements and international standards.
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