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are designed and manufactured in compliance with all applicable IEEE and RUS standards. All transformers are oil filled, 65 degree rise, and designed for usual service conditions per IEEE C57.12.00.Polemount transformers are categorized by type and class. Type identifies the protection of transformers. Class Identifies the number of high voltage bushings, mounting positions and lightning arresters when required.
| H.V. | L.V. | E | |||||||||
| A | B | C | D | ||||||||
| 10 | 34500/19920 or33000/19100 |
±2×2.5% or 0 |
120 240 277 480 or 120-240 240-480 |
36 | 120 | 850 | 500 | 567 | 380 | 286 591 610 | 100 |
| 15 | 50 | 195 | 1100 | 505 | 570 | 380 | 135 | ||||
| 25 | 80 | 290 | 1220 | 545 | 620 | 420 | 200 | ||||
| 37.5 | 105 | 360 | 1250 | 585 | 660 | 460 | 250 | ||||
| 50 | 135 | 500 | 1285 | 635 | 710 | 510 | 310 | ||||
| 75 | 190 | 650 | 1320 | 660 | 730 | 510 | 360 | ||||
| 100 | 210 | 850 | 1355 | 720 | 730 | 560 | 410 | ||||
| 167 | 350 | 1410 | 1456 | 800 | 848 | 560 | 570 | ||||
| 250 | 500 | 2000 | 1518 | 880 | 908 | 620 | 815 | ||||
| 333 | 650 | 2500 | 1550 | 1020 | 1018 | 680 | 870 | ||||

:
External welds are 100% coverage for added strength and corrosion withstand.
100% of the polemount receives a paint finish that exceeds all IEEE requirements including 160 in-lb. impact, 2000-hour salt spray, 1000 hours QUV and 20 cycle SCAB.

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