EPDS SERVICE, SOUTH AFRICA, FRANS BOUWER, 2018. Retrofit Solutions One-Fit,UFES, Reyrolle LM AMEU Namibia,March 2018
Retrofit Agenda 1. Safety 2. One-Fit overview 3. UFES overview 4. Reyrolle LM-Switchgear retrofit solutions 5. Questions and Answers March 15, 2018 Slide 2
Safety March 15, 2018
Safety Priority No. 1 ABB Safety Drive Arch Flash Clothing min. of 8.9 cal/cmˆ² Technician Tool kits Driving at Night Policy People s lives and Safety will be No.1 Stop to Work if there is a Safety compromise March 15, 2018 Slide 4
ONE-FIT Circuit Breaker Retrofit solution to all Switchgear March 15, 2018
OneFit Retrofit Circuit Breakers on non-abb 11kV Indoor Switchgear The One-Fit offer to customise existing Switchgear includes the following 3D Scan of Existing Switchgear CB compartments Design Adaption system and Cassette Mechanical and Electrical testing of design Type Testing of solution Proposal to customers Installation and Commissioning March 15, 2018 Slide 6
OneFit Benefit and range Benefits Range of 11kV Circuit Breakers on offer Added Safety features by adding Behind Door Racking Get Oil CB s off the system More advanced Interlocking New CB with new life and higher Technology, less maintenance March 15, 2018 Slide 7
OneFit Examples SBV3- To ABB VD4 with One-Fit Other March 15, 2018 Slide 8
UFES ABB has developed an Ultra Fast Earthing Switch, which opens the possibility for new arc protection concepts for MV Switchgear systems. It is an innovative combination of the ABB technologies vacuum interrupter and Is-Limiter March 15, 2018
UFES Arc Faults Internal Arc faults on the system Use GRP and steel as enclosure material Patented double layer design Combines benefits of steel and concrete into one solution Main Features: Fully type tested design, including Internal arc fault Lightweight Corrosion resistance Thermal insulated enclosure Smart grid compatibility Example of Internal Arc fault The reliable March 15, 2018 Slide 10
UFES Operation UFES operating description UFES components A device as small as a 22kv insulator offers enhanced protection for your switchgear by minimizing of all three effects The UFES arc protection system channels the uncontrolled release of energy by the arc into a solid metal, 3 phase connection to earth potential Triggered by electronic device using light and current As this short-circuit is of considerably lower impedance than the fault, the fault current commutates from the arc to the defined short-circuit created by the Primary Switching Element, causing the arc fault voltage to break down and the arc to be extinguished almost immediately. The resulting controlled flow of earth fault current is then finally shut down by the feeder circuit-breaker. The internal arc will be extinguished within an operating time of < 4ms after detection of the fault March 15, 2018 Slide 11
UFES Comparison Other Protection devises Conventional Protection Device Detection by standby relay clearing of arc fault by upstream circuit breaker Arc fault duration 200-300ms Dramatic consequences possible Fire/Explosion hazard, heavy injuries of personnel UFES Operating times UFES system Ultra-fast extinction of the internal arc by activating the UFES primary element Final clearing of fault current by upstream circuit breaker Ar fault duration < 4ms NO consequence to be expected prevention of any thermal damage and reduction of pressure rise Fast-acting relay with supplementary equipment Fast protection by special protection relay clearing of arc fault by upstream breaker Arc fault duration typical 50-100ms Limited consequences for equipment and switchgear (depending on design) March 15, 2018 Slide 12
UFES Current and Energy Short-circuit current during Arc fault Energy curve during internal Arc March 15, 2018 Slide 13
UFES Pressure Rise Effect of an internal arc fault Pressure curve Real life example of what pressure rise does to a S/S March 15, 2018 Slide 14
UFES Comparison of busbar faults Busbar compartment after internal arc fault Without active protection ( 50ka/100ms) Busbar compartment after internal arc fault with active protection by UFES system March 15, 2018 Slide 15
UFES Construction UFES devise Installation options March 15, 2018 Slide 16
UFES Typical Installation with 2 x Incomers and 1 x Bussection The E-House is a switching substation utilizing one of the following designs; Containerized Solution Modularized Design Single Large Structures Skid Mounted Modules Mobile Substation In the past E-Houses had been used mainly in traditional market segments such as O&G, mining and utilities. The approach in these segments is driven by detailed and sometimes demanding specifications. New and fast developing market segments like renewables, datacenters, ship to shore, temp power, infrastructure etc, require solutions that are fast to deliver, standardized and/or modularized. March 15, 2018 Slide 17
Reyrolle LM- Retrofit. March 15, 2018
Reyrolle LM- Retrofit ABB experience and reasons for retrofitting ABB Background in Reyrolle retrofits Reyrolle SA was bought by ABB in 2002 and we kept the knowledge and experience on Reyrolle Switchgear in ABB We have existing contracts in place and done over 2000 retrofits so far, this includes CoCT, London underground, Saudi Arabia, Japan Elect. et Fully Type tested design, including internal arc fault ratings Proven design with added safety features All existing Reyrolle design drawings are still available in ABB Keep strategic spares for legacy product Reasons for retrofitting Unsafe Switchgear on the system, old, unreliable, Oil filled Legacy product with limited to no spares availability Much cheaper to upgrade and retrofit than replacing the Switchgear Down-time to retrofit is much less than replacing No MV cable work necessary Budget can be done and planned before a fault takes away the complete substation March 15, 2018 Slide 19
Reyrolle LM- Retrofit Reasons for retrofitting Everything was fine? Complete main Substation destroyed March 15, 2018 Slide 20
Reyrolle LM-Retrofit What ABB can offer Offering Existing Circuit Breakers Replace any existing Reyrolle LM-Type circuit breaker with modern HD4 or VD4 breaker Upgrade Interlocking with added safety Replace side-wipe contact configuration with plug & socket arrangement, this gives reliable connection between panel and breaker plus extra wiring to add signals and control for SCADA Upgrading of shutter box arrangement to help with self alignment Adding of behind-close door feature for safety, ARC Vent type tested Adding Arc Vent features to the rest of the panel if required Adding / upgrading protection relays Adding remote switching and motor charging of CBs March 15, 2018 Slide 21
Reyrolle LM-Retrofit. Retrofit loose material kit, behind door racking LMT mk1 back and 2000A LM Panels. March 15, 2018 Slide 22
Reyrolle LM-Retrofit VD4 with plug and socket arrangement Retrofit 11kV VD4-LM Circuit Breaker Side wipe conversion to plug & socket March 15, 2018 Slide 23
Reyrolle LM-Retrofit Complete Abattoir Substation, completed 11 March 2018 City of Cape Town 630A LM to VD4 retrofit 2017 = 471 March 15, 2018 Slide 24
Reyrolle LM-Extentions Reyrolle to Unigear Joggle with Riser Panel LM-Unigear Riser-Unigear March 15, 2018 Slide 25
Questions?. March 15, 2018