OSKF

GE’s OSKF have been designed for a 30 year lifetime and, thanks to the profound technical concepts, many well out-live this service life. The oil is hermetically sealed from the air by a stainless-steel diaphragm assembly and all external parts are of corrosion-resistant material.

Customer Benefits

• Special accuracy classes for protection: TPS, TPX, TPY, TPZ, PR
• World leader in seismic solutions
• Expertise in 800 kV
• Stable accuracy over its lifetime
• Maintenance free
• Design verified by extensive field experience
• Protection against bursting

Characteristics

• 72.5 to 800 kV
• Up to 5,000 A
• In short-circuit: up to 120 kA1” (Isc dyn: 324 – kA peak)
• Secondary cores: up to 8
• Oil expansion by stainless-steel bellows
• Oil level indicator
• Available high and extended range accuracy design (ERCT)
• Compliance with IEC and IEEE or equivalent standards
• DC current transformers available