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INDUCTIVE VOLTAGE TRANSFORMERS FOR TRANSMISSION LINES

Inductive Voltage Transformer with rated voltages from 115 kV to 400 kV, according to CFE standard CFE VE100-29. Basic insulation level from 550 kV to 1550 kV. SANDIAN brand.

Characteristics TPI 115 kVTPI 138 kVTPI 230 kVTPI 400 kV
Rated voltage (kV)115138230400
Max. Design voltage (kV)123145245420
Power frequency Withstand voltage (kV effective)Internal230275460630
External275325510680
Power Frequency Withstand voltage (secundary) (kV)19191919
Lightning impulse withstand voltage (kV cresta)Internal55065010501425
External65075011751550
Primary voltage (kV)6980.5138241.5
Secondary voltage (V)115-69115-67.08115-69115-69
Class0.20.20.20.2
Burden 0-1000-1000-1000-100
Voltage ratio69 000:115-6980 500:115-67.08138 000:115-69241 500:115-69
Min. Creepage distance (mm)38134495759513020
Operation altitude (mm)Above 2500Above 2500Above 2500Above 2500

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