OTEF

GE manufactures a complete range of high voltage oil-filled voltage transformers (VTs). The OTEF is a tank-type potential transformer with post insulator. Thousands voltage transformers are in service worldwide, in all types of climates and under the most severe conditions.

Customer Benefits

• Extensive field experience
• Operational security
• Maintenance free
• Protection against bursting
• Easy installation – no special tools required
• Leak proof design and rugged construction for long service life
• Mineral oil-filled – no PCB
• Insulation paper applied mechanically which guarantees a homogeneous, high-density paper insulation
• Seismic design (for 420 kV networks, lower gravity center than competitors)

Characteristics

• 72.5 to 420 kV
• Up to 5,000 A
• In short-circuit: up to 80 kA1” (Isc dyn: 200 – kA peak)
• Secondary cores: up to 8
• Oil expansion by stainless-steel bellows
• Oil level indicator
• Compliance with IEC and IEEE or equivalent standards
• DC current transformers available