Voltage Management Unit نيجريا طلبات الاستيراد والتصدير نيجريا شركات الأعمال

11.5MVA CAPACITY HV Automatic Voltage Regulator Capacity: 11.5MVA Number of phase & Frequency: 3 Ph, 50Hz Type cooling: ONAN Rated voltage: 33kV Input voltage: 28.05 To 37.95 kV Input Current Range: 236.70Amps. To 174.95Amps Output Voltage: 33kV ±1% Output Current: 201.2Amps Correction Rate: kV/Second : 60V/Sec Operating Frequency: 47 to 53Hz Duty Cycle : 100% Continuous Load Efficiency : more than 99% TEMPERATURE RISE : Ref. Ambient Degree C : 45 Oil by thermometer Degree C : 50 Winding by Resistance Degree C : 55 INSULATED WITHSTAND Impulse (1.2x50 micro second wave) : 170kVp Power Frequency (Dry & Wet) : 70 kvrms for 1 minute NEUTRAL EARTHING SYSTEM NEUTRAL Effectively Earthed/Resonant Non effectively Earthed/isolated : isolated AVR