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KOTEF utilizes the same components as the individual CTs and VTs. Both transformers are combined in a single metering unit and are available in porcelain or composite. The KOTEF combines the advantages and design features of the OSKF and OTEF lines.

Customer Benefits

• Excellent solution for adding metering capability to either a new substation installation or a site being upgraded where space is at a premium
• Price advantage
• Space saving - only one base
• Cost savings on transportation and assembly
• Maintenance free
• Protection against bursting

Characteristics

• 72.5 to 420 kV
• Oil expansion by stainless-steel diaphragm bellows
• Oil level indicator
• Secondary cores in aluminum box
• Changing of primary ratio by primary series-parallel connection (double or triple ratio) or by secondary taps
• Compliance with IEC and IEEE or equivalent standards
• Paper oil insulation