Abb Ltd. · SIX:ABBN
Abb — Investor Presentation (December 2023)
31 slides from Abb's investor presentation, December 2023
Slide 1: R-MEC spring-based outdoor dead tank circuit breaker: Features, advantages and benefits
— DECEMBER 2023 R-MEC spring-based outdoor dead tank circuit breaker Features, advantages and benefits © 2023 ABB. All rights reserved. 9AKK107680A3063 REV B DECEMBER 2023
Slide 2: Field of application
— R-MEC spring-based outdoor dead tank circuit breaker Field of application Distribution utility substation • Protection of overhead and underground lines • Interconnection of renewable energy circuits • Power transformer and capacitor banks protection • Protection against permanent and severe failu
Slide 3: Field of application
— R-MEC spring-based outdoor dead tank circuit breaker Field of application Field of application R-MEC is used in applications where: • Other operating mechanism technologies are not allowed • Independent (and different voltage level) power supply for coils and motor is required • Mechanism energy n
Slide 4: Key value proposition points
— R-MEC spring-based outdoor dead tank circuit breaker Key value proposition points Reliability Extended flexibility Easy to use and maintain • Equipped with the highly reliable • Independent power source and • EL mechanism’s modular design EL spring mechanism, currently different voltage level for
Slide 5: Product features: Spring based mechanism
— R-MEC spring-based outdoor dead tank circuit breaker Product features: Spring based mechanism Operating mechanism is based on the well proven EL-mechanism family used in the circuit breaker industry leaders (Indoor: VD4 and ADVAC®; Outdoor: LTB VBF36) Second trip coil • Modular design extremely op
Slide 6: Product features: Spring based mechanism
— R-MEC spring-based outdoor dead tank circuit breaker Product features: Spring based mechanism Mechanism accessories variants • Voltage range for close coil, tripping coil, second tripping coil, and undervoltage coil: • 24 VCD • 48 VCD/VCA • 110-132 VCD/110-127 VCA • 240-250 VCD/VCA • Voltage range
Slide 7: Product features: Vacuum Interrupters
— R-MEC spring-based outdoor dead tank circuit breaker Product features: Vacuum Interrupters R-MEC circuit breaker interrupts nominal/short circuit arc by means of Vacuum Interrupters: • Completely sealed vacuum life of 30 years • Maintenance free vacuum interrupters • Manufactured by ABB in Ratinge
Slide 8: Product features: Manual emergency trip
— R-MEC spring-based outdoor dead tank circuit breaker Product features: Manual emergency trip Manual trip lock pull before pressing button Manual trip button mechanically interlocked to prevent closing in close block position: Lock out tag out • When manually tripped, closing is mechanically blocke
Slide 9: NextGeneration housing
— R-MEC spring-based outdoor dead tank circuit breaker NextGeneration housing NextGen R-MEC NEMA3R NEMA4 Arc Resistant Specialized NEMA3R housing, Best-performing housing against Unparalleled safety for workers designed to exceed the traditional water intrusion around equipment NEMA3R expectations F
Slide 10: NextGeneration housing
— R-MEC spring-based outdoor dead tank circuit breaker NextGeneration housing NextGen R-MEC NEMA3R NEMA4 Arc Resistant Specialized NEMA3R housing, Best-performing housing against Unparalleled safety for workers designed to exceed the traditional water intrusion around equipment NEMA3R expectations F
Slide 11: NextGeneration housing NEMA3R
— R-MEC spring-based outdoor dead tank circuit breaker NextGeneration housing NEMA3R NextGeneration R-MEC • Protection against water and dust above the traditional NEMA3R design • Introduction of roof overhang that limits water exposure • Introduction of 3-point door latching system, hinges, gaskets
Slide 12: NextGeneration housing NEMA3R
— R-MEC spring-based outdoor dead tank circuit breaker NextGeneration housing NEMA3R New self-sealing Bushing brackets made of Introduction of expert OEM Use of self-sealing bolts bushing gasket casted aluminum and four elements like 3-point door in all external bolts fixing bolts to help ensure lat
Slide 13: NextGeneration housing NEMA3R
— R-MEC spring-based outdoor dead tank circuit breaker NextGeneration housing NEMA3R New roof overhang limits the door’s Introduction of single door in LV Galvanized steel lifting lugs to avoid exposure to water compartment for all R-MEC ratings paint scratching/removal and to help ensure perfect do
Slide 14: NextGeneration housing NEMA3R
— R-MEC spring-based outdoor dead tank circuit breaker NextGeneration housing NEMA3R No vents in HV compartment for heat dissipation needed Standard bolted cover for HV compartment, optional hinged HV door Completely new housing gasketing system © 2023 ABB. All rights reserved. Slide 14
Slide 15: NextGeneration housing
— R-MEC spring-based outdoor dead tank circuit breaker NextGeneration housing NextGen R-MEC NEMA3R NEMA4 Arc Resistant Specialized NEMA3R housing, Best-performing housing against Unparalleled safety for workers designed to exceed the traditional water intrusion around equipment NEMA3R expectations F
Slide 16: NextGeneration housing NEMA4
— R-MEC spring-based outdoor dead tank circuit breaker NextGeneration housing NEMA4 Degree of protection Testing • Protection against access to hazardous parts with • Evaluation of ingress of 0.5 in. probe a finger NEMA3R • Continuous water spray applied during 1 hour with • Ingress of light dust an
Slide 17: NEMA3R testing
— R-MEC spring-based outdoor dead tank circuit breaker NEMA3R testing © 2023 ABB. All rights reserved. Slide 17
Slide 18: NEMA4 testing
— R-MEC spring-based outdoor dead tank circuit breaker NEMA4 testing © 2023 ABB. All rights reserved. Slide 18
Slide 19: NEMA4 design
— R-MEC spring-based outdoor dead tank circuit breaker NEMA4 design No vents needed Special gasketing in key joints (no silicone) Improved door window design Redesigned manual trip sealing Same footprint as NEMA3R © 2023 ABB. All rights reserved. Slide 19
Slide 20: NextGeneration housing
— R-MEC spring-based outdoor dead tank circuit breaker NextGeneration housing NextGen R-MEC NEMA3R NEMA4 Arc Resistant Specialized NEMA3R housing, Best-performing housing against Unparalleled safety for workers designed to exceed the traditional water intrusion around equipment NEMA3R expectations F
Slide 21: Arc Resistant housing
— R-MEC spring-based outdoor dead tank circuit breaker Arc Resistant housing Internal Arc fault Arc flash curve Internal Arc fault negative effects • An internal arc fault is rare, but it Immediately after the arc ignition the is the most severe fault within internal temperature can reach 36,000° F
Slide 22: Arc Resistant housing
— R-MEC circuit breaker Arc Resistant housing Safety Reliability Productivity Arc Resistant R-MEC housing • Provides protection against internal arc faults on all sides and with LV door open, Type 2B protection rating • Ready to withstand arc faults of up to 25/31.5kA during 0.5 s • Gases are safely
Slide 23: NextGeneration housing
— R-MEC spring-based outdoor dead tank circuit breaker NextGeneration housing NextGen R-MEC NEMA3R NEMA4 Arc Resistant Specialized NEMA3R housing, Best-performing housing against Unparalleled safety for workers designed to exceed the traditional water intrusion around equipment NEMA3R expectations F
Slide 24: Product features: Simple and clean interface
— R-MEC spring-based outdoor dead tank circuit breaker Product features: Simple and clean interface • Simple interface • Easy access to LV wiring • Large personnel access © 2023 ABB. All rights reserved. Slide 24
Slide 25: Product features: Customizable components
— R-MEC spring-based outdoor dead tank circuit breaker Product features: Customizable components Thanks to the high flexibility of the R-MEC circuit breaker design and ABB’s substation application experience, the Bushing terminals R-MEC circuit breaker can be customized to cover basic to the most de
Slide 26: High customization level
— R-MEC spring-based outdoor dead tank circuit breaker High customization level Current transformers (CTs) • R-MEC accommodates up to two CTs per bushing (4 per phase) • CT relay accuracy ranges from C100 to C800 (C400 standard) • Ratios range from 600:5 to 6000:5 • Design/operation according IEEE,
Slide 27: High customization level
— R-MEC spring-based outdoor dead tank circuit breaker High customization level Indicating Microprocessed Control Panel relays lights Special control switches Electromechanical relays Test switches Meters Outlet UPS / ethernet switch © 2023 ABB. All rights reserved. Slide 27
Slide 28: High customization level
— R-MEC spring-based outdoor dead tank circuit breaker High customization level Extra large creepage bushing Housing customizations available Seismic and wind load tested • Standard bushing creepage: 25 mm/kV • Ready to be fabricated in several colors The R-MEC circuit breaker has been tested • Opti
Slide 29: Dimensions
— R-MEC spring-based outdoor dead tank circuit breaker Dimensions Rating Value Rated and Insulation voltage kV 15.5 Rated frequency Hz 50/60 Continuous current A 1250 Lightning impulse (BIL) kV 110 Power frequency withstand kV 50 Min: 88 in [2235 mm] Short circuit interrupting current kA … 25 / 31.5
Slide 30: General maintenance
— R-MEC spring-based outdoor dead tank circuit breaker General maintenance Maintenance is minimal due to the simple but robust design: • Torque check in main joints • Heater checkup • Cleaning and lubrication in rollers and mechanism shafts (less than one hour) • No need for adjustments or alignment
Slide 31: Slide 31