33kV Vacuum break OLTC – Type INS3/A

Transformer Rating: Upto 25,000 Kva, Phase Curent Upto 300 Amps, Step Voltage Upto 900 Volts

OLTC TECHNICAL SPECIFICATION
MAX.VOLTAGE TO GROUND 33 kV
MAX.VOLTAGE BETWEEN PHASES 33 kV
MAX.CONTINUOUS CURRENT (amps) 300
MAX.OPERATING STEP VOLTAGE (volts) 900
MAX.NUMBER OF POSITIONS WITHOUT PRE SELECTOR 17
MAX.NUMBER OF POSITIONS WITH PRE SELECTOR 33
NUMBER OF PHASES 3 X SINGLE PHASE
MAX.VOLTAGE OVER TAPS 6600 V
LOCATION OF TAPS ANYWHERE IN 33 kV WINDING
TEST VOLTAGES IN AIR
1 MIN.RMS AC IN kV IMPULSE kVp  1.2/50 MIC.SEC.
ALL LIVE PARTS TO GROUND 85 200
BETWEEN PHASES 85 200
BETWEEN ADJACENT CONTACTS 5 13
OVER TAPPING RANGE 25 60
APPROX.TOTAL WEIGHT 390 kgs
PACKING DIMESIONS(mm) L-2840 X W-1040 X H-1610