Being ISI approved, our offload distribution transformers are available in the ranges from 100 KVA to 2500 KVA and they are following the criteria of BIS-1180 (Jan 2014). Further, the IS-2026 standard is maintained for transformers, ranging from 2500 KVA to 5000 KVA, including upholding standards of all voltage classes with their efficiency levels. Here a brief outline is provided-
● Pad-mounted Transformers - both in and outdoor
● Multi-paper covered copper conductor
● Managing BIS-1180, IS-2026, and IEC 60076 application standards
● Minimum 15 years transformer life & design with conditions of few maintenances and operating silently
| Type | Indoor/ Outdoor |
| Voltage Class | 3.3, 6.6, 11, 22, 33 KV |
| Vector Group | Dyn11 or other specified by customer |
| No. of phase | 3 phases |
| Frequency | 50/60 Hz |
| Tap Range | ±10 %, +5% in 2.5% steps or as per requirement of customer. |
| Winding Material | Copper with multiple paper covering |
| Applicable Standards | IS-1180:2014 (Part-1), IS-2026, IEC 60076 |
| Painting | Epoxy or specified by customer |
| Sr. No. | KVA | Impedance % | Maximum Total Loss (W) @ 75˚ Celsius | |||||
| LEVEL 1 | LEVEL 2 | LEVEL 3 | ||||||
| 50% | 100% | 50% | 100% | 50% | 100% | |||
| 1 | 250 | 4.5 | 1050 | 3150 | 980 | 2930 | 920 | 2700 |
| 2 | 315 | 4.5 | 1100 | 3275 | 1025 | 3100 | 955 | 2750 |
| 3 | 400 | 4.5 | 1300 | 3875 | 1225 | 3450 | 1150 | 3330 |
| 4 | 500 | 4.5 | 1600 | 4750 | 1510 | 4300 | 1430 | 4100 |
| 5 | 630 | 4.5 | 2000 | 5855 | 1860 | 5300 | 1745 | 4850 |
| 6 | 800 | 5.0 | 2459 | 7300 | 2287 | 6402 | 2147 | 5837 |
| 7 | 1000 | 5.0 | 3000 | 9000 | 2790 | 7700 | 2620 | 7000 |
| 8 | 1250 | 5.0 | 3600 | 10750 | 3300 | 9200 | 3220 | 8400 |
| 9 | 1600 | 6.25 | 4500 | 13500 | 4200 | 11800 | 3970 | 11300 |
| 10 | 2000 | 6.25 | 5400 | 17000 | 5050 | 15000 | 4790 | 14100 |
| 11 | 2500 | 6.25 | 6500 | 20000 | 6150 | 18500 | 5900 | 17500 |
Note: For Transformer having voltage class 22 Kv then permissible total loss shall not exceed by 5% of total loss as per above table and for 33 Kv Class permissible total loss shall not exceed by 7.5% of total loss as per above table.
Electro-Tech Transmission Pvt. Ltd was established in the year 2014 with simple beginnings, for large scale impactful power and transformer solutions.
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