With a large installed base and proven track record, the PMRI breaker offers unequalled performance and reliability.

ABB Advantage• Compact, lightweight design reduces foundation requirements and saves construction costs• High performance interrupters in a definite purpose breaker reduce potential for overvoltages caused by restrikes during capacitor bank switching • One-piece interrupter assembly simplifies field change-out whenever end of life is reached by eliminating need for internal tank mounting of separate parts and alignment• Fully-integrated spring-hydraulic operating mechanism is self- lubricating and self-damping. It is also hermetically sealed to the atmosphere, which eliminates corrosion and helps provide maintenance-free performance with long term stability • Externally accessible current transformers enable simple field change-out without degassing breaker and bushing removal• Extensive range of available field services, from technical assistance to turn-key installation, can dramatically reduce construction costs and speed time to commercial operation

Type PMRI, 242 kV, up to 40 kAPower Circuit Breaker

Standard Features• Dead tank design, with one 3-cycle 40-kA self blast interrupter per tank on a galvanized steel frame• National Board certification of interrupter tanks per the ASME Pressure Vessel and Boiler Code• All tanks factory leak tested in a hard-vacuum chamber with a helium mass spectrometer• Certified per ANSI C37.04, C37.06, and C37.09 Standards• Three maintenance-free HMB-1 spring-hydraulic mechanisms• Frame mounted NEMA-3R steel control cabinet protected with TGIC polyester powdercoat finish• Density monitor and temperature-compensated pressure gauge directly-mounted on each tank• Porcelain bushings• Continuous current ratings through 4000 A• Ships fully assembled and factory tested with 5 psig SF6

gas

(bushings removed for export transit)

Options and Accessories• Switching Control Sentinel (SCS) for reduction of switching transients• Condition monitoring with the Circuit Breaker Sentinel (CBS)• Extra creep and/or extra strike bushings for special applications• Silicone rubber composite bushings• Tank heaters for operation in ambient temperatures below -30º C• High seismic designs

3xHMB-1.0 Mechanism Three type HMB-1 spring-hydraulic mechanisms are located within the 242PMRI breaker control cabinet. Each mechanism drives a separate interrupter to provide independent pole operation. A stack of disk springs within each unit stores mechanical energy. That energy is hydraulically translated through an operating shaft to open and close the contacts of its respective interrupter. Spring charge is automatically maintained by a universal motor and pump. Each fully-integrated mechanism is self lubricating and hermetically sealed, affording excellent reliability and long term stability.

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For more information please contact: ABB Inc. High Voltage ProductsWestmoreland Distribution Park East100 Distribution Circle Mount Pleasant, Pennsylvania, USA Phone: +1 (724) 696-1500 Fax: +1 (724) 696-1502 www.abb.com

Rated Capabilities

Circuit Breaker Type

Rated Maximum Voltage (kV, rms)

Short Circuit and Short Time

Current (kA, rms)

Maximum Continuous

Current (A, rms)

Rated Interrupting Time

(Cycles)

Full Wave Withstand Voltage

(kV, Peak)

Power Frequency Insulation

Withstand Voltage (kV, rms)

2 µ-sec Chopped Wave Impulse

Voltage (kV, Peak)

Closing and Latching Current

(kA, Peak)

242PMRI40-20 242 40 2000 3 900§ 425§ 1160 104

242PMRI40-30 242 40 3000 3 900§ 425§ 1160 104

242PMRI40-40 242 40 4000 3 900§ 425§ 1160 104

§ 1050 kV full wave withstand voltage with 460 kV power frequency withstand rating optionally available

171” (4348)SHIPPING AND INSTALLED WIDTH

94 1/2” (2400)MAX. DIM. FOR BUSHING REMOVAL

83 1/2” (2119)PHASE SPACING

83 1/2” (2119)PHASE SPACING

70” (1784)METAL TO METAL

74 1/8”(1883)HGT. OF

BREAKERCOUNTER

AND POSITIONINDICATOR

68 5/8”(1743)SPRINGCHARGE

INDICATOR

CONDUIT ENTRANCE 83 5/8”(981)

82 7/8”(2105)MOTOR

COUNTER

122”(3099)

MINIMUMBUSHINGHEIGHT

179”(4547)

LIVEPARTS

190 1/4”(4832)TOP OF

TERMINALPAD

198”(5029)

INSTALLEDHEIGHT

23”(584)

ADDITIONAL HEIGHTREQUIRED FORBUSHING REMOVAL

106” (2692)MAX. DIM. FOR BUSHING REMOVAL

101” (2565)SHIPPING LENGTH

68” (1728)METAL TO METAL

64”(1625)

BUSHINGSTRIKE

153”(3870)

SHIPPINGHEIGHT

220”(5588)

MIN. DIM.FOR

BUSHINGREMOVAL

45 1/4”(1149)

LEGEXTENSIONS

96 1/2”(2451)

HEIGHT TOCENTER

OF BREAKER

102 1/2” (2604)CLEARANCE TO REMOVE INTERRUPTER

RUPTURE DISC

MINI MONITOR

2KVA XFMR

12”(305)