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Pavani Power Systems PVT LTD

Technical Data - Disconnector/Isolators

Horizontal Double Break Disconnector/Isolators
Sl.No Technical Particulars Unit Rated Values
36 kV 72.5 kV 123 kV 145 kV 245 kV
I Rated voltage [kV] 36 72.5 123 145 245
II Rated frequency [Hz] 50 50 50 50 50
III Rated current [Amps] 3150 3150 3150 3150 3150
IV Rated short circuit withstand value [kA] 31.5 40 40 40 50
V Rated short circuit duration Sec. 3 3 3 3 3
VI Rated PF withstand voltage across isolating distance [kVr] 80 160 265 315 530
VII Rated PF withstand voltage between live terminals and ground [kVrms] 70 140 230 275 460
VIII Lightning Impulse withstand across Isolating distance [kVp] 195 375 630 750 1200
IX Lightning Impulse withstand between live terminals and ground [kVp] 170 325 550 650 1050
X Switching Impulse withstand across Isolating distance [kVp] - - - - -
XI Switching Impulse withstand across between live terminals and ground [kVp] - - - - -
Horizontal Centre Break Disconnector/Isolator
Sl.No Technical Particulars Unit Rated Values
36 kV 72.5 kV 123 kV 145 kV 245 kV
I Rated voltage [kV] 36 72.5 123 145 245
II Rated frequency [Hz] 50 50 50 50 50
III Rated current [Amps] 3150 3150 3150 3150 3150
IV Rated short circuit withstand value [kA] 31.5 40 40 40 50
V Rated short circuit duration Sec. 3 3 3 3 3
VI Rated PF withstand voltage across isolating distance [kVrms] 80 160 265 315 530
VII Rated PF withstand voltage between live terminals and ground [kVrms] 70 140 230 275 460
VIII Lightning Impulse withstand across Isolating distance [kVp] 195 375 630 750 1200
IX Lightning Impulse withstand between live terminals and ground [kVp] 170 325 550 650 1050
X Switching Impulse withstand across Isolating distance [kVp] - - - - -
XI Switching Impulse withstand across between live terminals and ground [kVp] - - - - -
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