Voltage transformers of three-phase anti-resonance group with moulded insulation, voltage class from 6 to 35 kV, climatic execution U, UHL, T, placement category 1 or 2, nominal primary voltage from 6000 to 35000 V, nominal linear secondary voltage 100 V, nominal three-phase power of measuring windings up to 1600 VA. The following reliability indicators shall be established for transformers:- installed operating time per failure - not less than 4105 h;- full service life - not less than 30 years.
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