BIS 1180
We manufacture ISI approved distribution transformer starting from 100 KVA to 2500 KVA under BIS-1180(Jan 2016) of all voltage class and covering all level of efficiency.
Distribution transformer have two different variant. offload distribution transformer and onload distribution transformer
Maximum Total Losses up to 11kV Class Transformers (Amendment 4: OCTOBER 2021) IS 1180 (PART 1): 2014
| Sl No | Rating (kVA) | Impedance (Percent) | Maximum Total Loss (W) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LEVEL 1 | LEVEL 2 | LEVEL 3 | LEVEL 4 | LEVEL 5 | ||||||||
| 50 Percent Load | 100 Percent Load | 50 Percent Load | 100 Percent Load | 50 Percent Load | 100 Percent Load | 50 Percent Load | 100 Percent Load | 50 Percent Load | 100 Percent Load | |||
| i) | 250 | 4.50 | 980 | 2930 | 920 | 2700 | 864 | 2488 | 811 | 2293 | 761 | 2113 |
| ii) | 315 | 4.50 | 1025 | 3110 | 955 | 2750 | 890 | 2440 | 829 | 2164 | 772 | 1920 |
| iii) | 400 | 4.50 | 1225 | 3450 | 1150 | 3330 | 1080 | 3214 | 1013 | 3102 | 951 | 2994 |
| iv) | 500 | 4.50 | 1510 | 4300 | 1430 | 4100 | 1354 | 3909 | 1282 | 3727 | 1215 | 3554 |
| v) | 630 | 4.50 | 1860 | 5300 | 1745 | 4850 | 1637 | 4438 | 1536 | 4061 | 1441 | 3717 |
| vi) | 800 | 5.00 | 2287 | 6403 | 2147 | 5838 | 2015 | 5323 | 1892 | 4853 | 1776 | 4425 |
| vii) | 1000 | 5.00 | 2790 | 7700 | 2620 | 7000 | 2460 | 6364 | 2310 | 5785 | 2170 | 5359 |
| viii) | 1250 | 5.00 | 3300 | 9200 | 3220 | 8400 | 3142 | 7670 | 3066 | 7003 | 2991 | 6394 |
| ix) | 1600 | 6.25 | 4200 | 11800 | 3970 | 11300 | 3753 | 10821 | 3547 | 10363 | 3353 | 9924 |
| x) | 2000 | 6.25 | 5050 | 15000 | 4790 | 14100 | 4543 | 13254 | 4309 | 12459 | 4088 | 11711 |
| xi) | 2500 | 6.25 | 6150 | 18500 | 5900 | 17500 | 5660 | 16554 | 5430 | 15659 | 5209 | 14813 |