Qingdao Hengfengyou Electrical Engineering Co., Ltd.
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H Class Insulation Series Dry Transformer
10KV 10~2500KVA Cast resin Dry Type distribution transformer
Cast resin transformers are a popular choice for use in commercial, industrial and residential sites. These power tranformers require practically no maintenance and have a much lower environmental impact than traditional oil-immersed transformers. Auto-extinguishing and other safety features make it the obvious choice for indoor applications and other areas with high fire risk.
Chracteristics
1. Thin resin structure that never cracks
2. Epoxy resin vacuum pressure casting process
3. Iron core model simulation analysis
4.The cast windings are divided in many tapes having only one turn for each layer – achieving a higher impulse voltage resistance capability and a lower risk of partial discharge. The winding is usually made with aluminium tape therefore mechanical stresses due to the transformer’s temperature variation are reduced. Low voltage windings are manufactured by a single foil of aluminium or copper, producing a strong resistance against short-circuit stress because the dielectric stresses are very low.
nsulation level
| Rated voltage | Power frequency test | BIL |
| 0.4kV | 5kV | |
| 6kV | 25kV | 60kV |
| 10kV | 35kV | 75kV |
| 20kV | 50kV | 125kV |
| 35kV | 70kV | 170kV |
TECHNICAL INDEX
| RATED CAPACITY | VOLTAGE COMBINATION | CONNECTION GROUP | LOSS (KW) | NO-LOAD CURRENT | SHORT-CIRCUIT IMPEDANCE | WEIGHT(KG) | ||||||
| (KVA) | HV(KV) | HIGH-VOLTAGE TAPPING RANGE | LV (KV) | SYMBOL | NO-LOAD | ON-LOAD | (%) | (%) | OIL WEIGHT | GROSS WEIGHT | ||
| 30 | 6 6.3 10 10.5 11 | 5% | 0.4 | Dyn11 Yzn11 Yyn0 | 0.13 | 0.63/0.60 | 2.3 | 4 | 75 | 295 | ||
| 50 | 0.17 | 0.91/0.87 | 2 | 88 | 395 | |||||||
| 63 | 0.2 | 1.09/1.04 | 1.9 | 95 | 420 | |||||||
| 80 | 0.25 | 1.31/1.25 | 1.9 | 103 | 480 | |||||||
| 100 | 0.29 | 1.58/1.50 | 1.8 | 115 | 540 | |||||||
| 125 | 0.34 | 1.89/1.80 | 1.7 | 130 | 645 | |||||||
| 160 | 0.4 | 2.31/2.20 | 1.6 | 145 | 740 | |||||||
| 200 | 0.48 | 2.73/2.60 | 1.5 | 175 | 885 | |||||||
| 250 | 0.56 | 3.20/3.05 | 1.4 | 195 | 1010 | |||||||
| 315 | 0.67 | 3.83/3.65 | 1.4 | 230 | 1205 | |||||||
| 400 | 0.8 | 4.52/4.30 | 1.3 | 255 | 1375 | |||||||
| 500 | 0.96 | 5.41/5.15 | 1.2 | 285 | 1620 | |||||||
| 630 | Dyn11 Yyn0 | 1.2 | 6.2 | 1.1 | 4.5 | 350 | 1960 | |||||
| 800 | 1.4 | 7.5 | 1 | 405 | 2310 | |||||||
| 1000 | 1.7 | 10.3 | 1 | 490 | 2690 | |||||||
| 1250 | 1.95 | 12 | 0.9 | 550 | 3315 | |||||||
| 1600 | 2.4 | 14.5 | 0.8 | 625 | 3985 | |||||||
Our workshop:
OUR SERVICE:
1.quick response in before sales period help you got order.
2.excellent service in production time let you know each step we made.
3.reliable quality solve you after sale headache.
4.long period quality warranty ensure you can buy without hesitate.