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SF6 gas-insulated circuit breaker 3AP1
dead-tankhigh-voltageoutdoor

SF6 gas-insulated circuit breaker
SF6 gas-insulated circuit breaker
SF6 gas-insulated circuit breaker
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Characteristics

Type
SF6 gas-insulated, dead-tank
Electrical characteristics
high-voltage
Other characteristics
outdoor
Current

Min.: 0 A

Max.: 3,150 A

VAC

Min.: 72.5 kV

Max.: 123 kV

Description

Overview of our dead tank circuit breakers We deliver dead tank circuit breakers for applications from 72.5 kV to 550 kV with a service life of up to 50 years. Our DT circuit breakers deliver the greatest possible reliability – even in extreme environmental conditions. The interrupter unit in this technology is located in a grounded metal-enclosed housing. Main features: •Toroidal-core current transformers on bushings (compact construction) •High short-circuit breaking currents possible (up to 90 kA with one interrupter unit) •Low center of gravity of the bases (higher seismic withstand capability) •Gas-insulated components ensure highest availability with minimum maintenance effort •Metal-enclosed interrupter unit (grounded housing) •Available with porcelain or composite insulators •Suitable for temperatures from -60 to 55°C with mixed gas solutions or various heating systems •High seismic safety up to 0.5 g •Suitable for altitudes of up to 1,000 meters Advantages: •Gas leakage rate of less than 0.1 % per year •Inspection after 12 and maintenance after 25 years •10,000 switching operations are guaranteed •Product life time of up to 50 years •Easy installation and commissioning: only few assemblies •Installation, commissioning, maintenance, training and technical advice from a single source •Guaranteed availability of spare parts for all Siemens circuit breakers for a minimum of 25 years after delivery

Catalogs

Other Siemens High-voltage – Power transmission products

High-voltage – Power transmission | Transmission Products

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.