Standard Ratings- 45, 75, 112.5, 150, 225, 300, 500, 750, 1000, 1500, 2000, 2500 KVA
Standard High-voltage & insulation level (BIL)
- 13200 V BIL: 95KV
- 13800 V BIL: 95KV
- 14400 V BIL: 95KV
- 23900GrdY/13800 V BIL: 125KV
- 24940GrdY/14400 V BIL: 125KV
- 34500GrdY/19920 V BIL: 150KV
Standard de-energized before operating tap changer
- Two - 2½% taps above and below rated voltage
- NEMA taps (14400, 13800, 13200, 12470, 12540 V)
Standard secondary voltage & insulation level (BIL)
The basic insulation level (BIL) of the secondary voltage shall be 30 kV.- 208Y/120 V
- 230Y/133 V
- 400Y/231 V
- 480Y/277 V
- 240D/120 MIDTAP
- 480D
- 240D
Standard primary and secondary connections
- Delta - Wye
- Grounded Wye - Wye
- Delta - Delta
Standard Impedance Voltage (%)
- 150KVA~400KVA 3.0% ~ 4.0%
- 400KVA~750KVA 3.5% ~ 4.5%
- 750KVA~1500KVA 4.0% ~ 5.5%
- 1500KVA~2500KVA 5.0% ~ 6.0%
Standard Sound Level (Average) decibels
- 150KVA~400KVA 55 db
- 400KVA~750KVA 58 db
- 750KVA~1500KVA 60 db
- 1500KVA~2500KVA 62 db
Following is required it shall be clearly stated on the inquiry:
- Overcurrent protection by a Bay-O-Net expulsion fuse
- Overcurrent protection by a Bay-O-Net expulsion fuse/ with a partial range under-oil ELSP current-limiting fuses
- Primary loadbreak dry-well fuse canisters
- Provided with an on/off loadbreak switch
- 4-position Loadbreak Switch / V-Blade Switch / T-Blade Switch
Accessories: Any additional accessories will be specified on the inquiry
- Externally operated off- load tap changer
- Pressure relief valve
- Drain valve with sampler on top and bottom
- Liquid level gauge
- Oil temperature gauge
- Ground pad and clamp with grounding
- Stainless Diagrammatic name plate
- Jacking Pad.