Premset : A New generation of MV Switchgear 4/14/2017 Premset : A New generation of MV Switchgear Amith Ganasram August 15, 2014 Premset

Wiki : “Innovation is finding a better way of doing something Wiki : “Innovation is finding a better way of doing something. The term innovation can be defined as something original and, as a consequence, new, that "breaks into" the market or society.”

What’s Premset and where is it sold ? 4/14/2017 Premset core technical application Compact, modular, smart ready switchgear Circuit breaker up to 17.5KV, 1250A, 25 KA 3s, IAC 25 KA 0,5s Market main application: Low-end Primary High End Secondary Targeted segments CIB : Commercial and Industrial Buildings Utility : MV/MV Substations Data Centres Hospital Industry MMM Infrastructure Premset

The 5 reasons why customers love Premset Safety of people and assets in any environments innovative technology (Shielded Solid Insulation System (2SIS)) with reduced risk of internal arcing Be the most reliable , compact and end-user friendly to operate breaking-disconnecting-earthing functions in a single device with intuitive and fully interlocked operation Highest efficiency and flexibility highly modular and flexible design Easy to maintain Lowering the total cost of ownership and improving peace of mind Smart-grid ready architecture distributed intelligence that allows for easy integration, easy configuration, and enhanced efficiency through advanced monitoring and control.

Voice from Customers in MV Distribution network 4/14/2017 Voice from Customers in MV Distribution network “ you have to take in account the smart grid trend ” “ expected life duration of switchgear is increasing ” “ maintenance-free is far more important than SF6-free” “ we want a switchgear with Easy Operation for our maintenance and operation teams” “ cost effective and compact Circuit Breakers are needed for small primary substations or loop management ” “ no problems with GIS switchgear, because reliable in harsh environment (humidity, temperature, dust, poor installation, partial discharges) ” “ I’ll never compromise about end-users safety ” Premset

4/14/2017 New generation of switchgear - Premset Premset Premset

Key Benefits Simple - Safe - Smart Safety Reliability Efficiency 4/14/2017 Key Benefits Safety Reliability Simple - Safe - Smart Efficiency Flexibility Premset

4/14/2017 Premset Totally Shielded Solid Insulation System design for optimized safety and extended equipment life 1 2 3 1- Low Voltage cabinet 2- Cable test 3- Top connections 4 - Core unit 5 - Bottom connections 6 - Bottom compartment 7 - Sensors (CTs and VTs) 8 - Gas exhaust duct 4 7 8 5 6 Premset

Safety & Reliability - SSIS Totally Shielded Solid Insulation System design for optimized safety and extended equipment life All surfaces at earth potential No dielectric ageing Long product life expectancy Reduced internal arc risk Accidentally touchable Insensitive to harsh environment

Safety & Reliability - SSIS All surfaces at earth potential Solid insulation covered by a conductive layer Well-known Technologies (epoxy, EPDM*) Patented flat connectics Busbars with shielded solid insulation Single bus bar (630A) Cable connection *EPDM: Ethylene Propylene Diene Monomer rubber

Electrical field calculation . Safety & Reliability - SSIS Earth shield continuity ensured by Patented Flat Interface 4/14/2017 Main advantages compared with traditional conical interface Simplicity of installation Compactness Flexibility Flat interface cross-section Electrical field calculation . Premset

Safety & Reliability – 3 Position Scheme 4/14/2017 Safety & Reliability – 3 Position Scheme Disconnection in vacuum & earthing switch in controlled air redundancy of isolation - vacuum bottles for breaking and disconnection - controlled air for downstream earthing switch in sealed-for-life screened tank. Breaking and disconnection Earthing switch Operation of earthing switch Operation of main switch Premset

Safety & Reliability - Interlocking 4/14/2017 Safety & Reliability - Interlocking 3-in-1 integrated architecture: easiest and safest operation, with built-in interlocking “The most intuitive operations for breaking, disconnection and earthing” Premset 13

Safety & Reliability – 3 Position Scheme 4/14/2017 Safety & Reliability – 3 Position Scheme Disconnection in vacuum & earthing switch in controlled air Premset 14

Safety – Cable Testing Device 4/14/2017 Safety – Cable Testing Device Cable testing and diagnosis: dedicated device, for easy access and total safety Cable testing without accessing cable box or dismantling cable connections Test device connection from the front of the switchboard, while cables remain earthed Failsafe interlocks with earthed star point Easy cabling All cables connections are aligned in front at a height of 700 mm Premset

Safety – Cable Testing Device 4/14/2017 Safety – Cable Testing Device Cable testing and diagnosis: dedicated device, for easy access and total safety Premset

Safety & Reliablity – Live Cable Interlocking 4/14/2017 Safety & Reliablity – Live Cable Interlocking Live cable interlock - Electrical lock-out of earthing switch when live cables Earthing switch lock-out function - Prevent the earthing switch to be closed on earth when cables are still alive - Positively blocked in case of auxiliary power loss Override unlocking by key Remote indication of locked position Premset

Efficiency Flexible approach & Embedded intelligence in switchgear 4/14/2017 Modules fully integrated in functional unit - Including sensors, switchgear interface, power supply, communication, HMI - Pre- engineered, factory-tested, cost effective - Easy integration based on : . Field bus communication between modules . Pre-cabling inside cubicle - Gradual solution : from local control up to complex feeder automation Today: set of products to connect - Protections: Sepam, Micom - Measurement metering: Power Logic - Local fault monitoring & Remote control: Easergy Easergy Sepam & Micom Power Logic Premset

Efficiency “Integrated intelligence” in MV switchgear RTU/ATS Power Supply R200 PS100 Modbus SC100 Flair PM200 VIP Fault detection Energy Quality Monitoring Switch Controller Self powered Protection Smart - IEC61850 access to Substation automation through gateway (G3200…)

Efficiency Low cost Supervision & Control system 4/14/2017 Efficiency Low cost Supervision & Control system Switchboard information is stored in a Web page Need just a PC, Tablet, Smart Phone with a standard Web browser Example of web access Premset

Flexibility A new level for MV switchgear Modularity ► assembly of functional bricks LV cabinet Cable test Top connection Core unit LBS LBS CB Metering CB CB Bottom connections Bottom compartment

Technical Description & Applications 4/14/2017 Technical Description & Applications Premset

Main Characteristics Internal arc INDOOR OUTDOOR 4/14/2017 Main Characteristics Rated voltage 15 kV Short time withstand 25 kA x 3s*, 21 kA x 3s, 20 kA x4s Rated busbar current 630 A, 1250 A (under development) Rated BIL withstand voltage 95 / 110 kV Rated PF withstand voltage 42 / 48 kV 1mn Cable earthing switch 25 kA, M0, E2 Degree of protection IP3X (indoor), IP54 (outdoor) Dimensions W x H x D (mm) 375 x 1600 x 900 (indoor) Range INDOOR * : 25kA x 3s on request Internal arc Standard design is virtually arc free Optional : type tested 21KA 1s A-FLR / 25KA 0.5s A-FLR : top or bottom exhaust Comply with new IEC standard 62271-200 ALFR OUTDOOR Premset

Four basic functional units 4/14/2017 Four basic functional units 100 or 200A disconnecting circuit breaker O-15 sec- CO 2000 operations ► D01-02 N Transformer protection 630A disconnecting circuit breaker O-15 sec-CO. 2000 operations ► D06 N Feeder protection 630A disconnecting circuit breaker O-0,3s-CO-15s-CO 10,000 operations ► D06 H Feeder protection Auto-reclose 630A disconnecting load break switch 1000 operations ► I06 T Network management Premset

Typical applications IEC standard 62271-200 ALFR Building Industry 4/14/2017 Typical applications Building Industry Energy 2.25 m 2.25m 3.75 m 3.75 m IEC standard 62271-200 ALFR Premset

MV Innovation in 20 years – Premset ! 4/14/2017 MV Innovation in 20 years – Premset ! Premset

Thank you for your attention… 4/14/2017 Thank you for your attention… Amith Ganasram Cell : 076 411 2263 Tel: 011 254 6638 Email: amith.ganasram@schneider.electric.com Premset