High-quality ZTelec dry-type isolation transformers, voltage options 480V–480V/380V/220V, capacities from 100kVA to 1000kVA. Ideal for industrial and commercial power systems. CE & ISO certified. Customizable solutions.
ZTelec’s 480V to 480V/380V/220V three-phase dry-type isolation transformers are engineered for superior performance, safety, and reliability. With capacities ranging from 100kVA to 1000kVA, they are widely used in industrial plants, commercial facilities, data centers, and renewable energy systems where voltage transformation and electrical isolation are essential.
Our transformers adopt high-quality silicon steel laminations, copper (or aluminum) windings, and advanced vacuum pressure impregnation (VPI) technology to ensure low noise, low losses, and long service life.
✅Voltage Options: Primary: 480V; Secondary: 480V, 380V, or 220V
✅Rated Capacity: 100kVA – 1000kVA
✅Type: Three-phase, dry-type, isolation transformer
✅Insulation Class: F or H
✅Cooling Method: AN (Air Natural)
✅Frequency: 50Hz or 60Hz
✅Connection Method: Delta/Star (Δ/Y) customizable
✅Standard Compliance: IEC, ANSI, GB, CE, ISO9001
✅ Safe Electrical Isolation: Protects personnel and sensitive equipment
✅ Low Noise & Low Loss: High efficiency core and windings
✅ Maintenance-Free: No oil required, environmentally friendly
✅ Compact & Durable: Suitable for harsh environments
✅ Custom Design Available: Tailored to your power system requirements
CNC machinery and automation systems
Solar and wind power integration
Medical equipment and laboratories
Data centers and control rooms
Offshore platforms and marine power systems
Industrial manufacturing lines
With over 60 years of experience in electrical insulation and power equipment manufacturing, ZTelec is your reliable partner for high-performance transformer solutions. We offer factory-direct pricing, fast delivery, and professional technical support worldwide.
| Rated capacity (kVA) | Voltagegroup | Impedance voltage(%) | SC(B)10 | Sound leve (dB) | Dimension(mm) | Weight(kg) | ||||||
| HV(kV) | Tap range | LV(kV) | No-loadloss (W) | Loadloss120℃ (W) | No-load curren (%) | L | W | H | ||||
| 30 | 10 11 10.5 6.6 6.3 6 | ±2×2.5% ±5% | 0.4 | 4 | 190 | 710 | 2.0 | 44 | 620 | 400 | 600 | 220 |
| 50 | 270 | 1000 | 2.0 | 44 | 650 | 400 | 740 | 320 | ||||
| 80 | 370 | 1380 | 1.5 | 45 | 750 | 500 | 770 | 460 | ||||
| 100 | 400 | 1570 | 1.5 | 45 | 800 | 500 | 830 | 580 | ||||
| 125 | 470 | 1850 | 1.3 | 46 | 950 | 880 | 1090 | 750 | ||||
| 160 | 540 | 2130 | 1.3 | 46 | 950 | 880 | 1090 | 780 | ||||
| 200 | 620 | 2530 | 1.1 | 47 | 1050 | 900 | 1200 | 850 | ||||
| 250 | 720 | 2760 | 1.1 | 48 | 1050 | 900 | 1200 | 1030 | ||||
| 315 | 880 | 3470 | 1.0 | 48 | 1080 | 900 | 1250 | 1060 | ||||
| 400 | 980 | 3990 | 1.0 | 49 | 1110 | 950 | 1270 | 1400 | ||||
| 500 | 1160 | 4880 | 1.0 | 49 | 1130 | 950 | 1380 | 1550 | ||||
| 630 | 1340 | 5880 | 0.85 | 49 | 1200 | 950 | 1450 | 1820 | ||||
| 630 | 6 | 1300 | 5960 | 0.85 | 50 | 1320 | 950 | 1375 | 1850 | |||
| 800 | 1520 | 6960 | 0.85 | 51 | 1310 | 1000 | 1315 | 2150 | ||||
| 1000 | 1770 | 8130 | 0.85 | 52 | 1400 | 1070 | 1520 | 2550 | ||||
| 1250 | 2090 | 9690 | 0.85 | 53 | 1440 | 1150 | 1570 | 3020 | ||||
| 1600 | 2450 | 11730 | 0.85 | 54 | 1650 | 1200 | 1795 | 4500 | ||||
| 2000 | 3050 | 14450 | 0.7 | 55 | 1800 | 1260 | 1870 | 5300 | ||||
| 2500 | 3600 | 17170 | 0.7 | 56 | 1950 | 1260 | 2035 | 6200 | ||||
| Rated capacity (kVA) | Voltagegroup | mpedance voltage(%) | SC(B)11 | Sound eve (dB) | Dimension(mm) | Weight(kg) | ||||||
| HV(kV) | Tap range | LV(kV) | No-loadloss (W) | Loadloss120℃ (W) | No-load current (%) | L | W | H | ||||
| 30 | 10 11 10.5 6.6 6.3 6 | ±2×2.5% ±5% | 0.4 | 4 | 170 | 710 | 2.0 | 44 | 620 | 400 | 600 | 220 |
| 50 | 250 | 1000 | 2.0 | 44 | 650 | 400 | 740 | 320 | ||||
| 80 | 330 | 1380 | 1.5 | 45 | 750 | 500 | 770 | 460 | ||||
| 100 | 360 | 1570 | 1.5 | 45 | 800 | 500 | 830 | 580 | ||||
| 125 | 420 | 1850 | 1.3 | 46 | 950 | 880 | 1090 | 750 | ||||
| 160 | 490 | 2130 | 1.3 | 46 | 950 | 880 | 1090 | 780 | ||||
| 200 | 560 | 2530 | 1.1 | 47 | 1050 | 900 | 1200 | 850 | ||||
| 250 | 650 | 2760 | 1.1 | 48 | 1050 | 900 | 1200 | 1030 | ||||
| 315 | 790 | 3470 | 1.0 | 48 | 1080 | 900 | 1250 | 1060 | ||||
| 400 | 880 | 3990 | 1.0 | 49 | 1110 | 950 | 1270 | 1400 | ||||
| 500 | 1040 | 4880 | 1.0 | 49 | 1130 | 950 | 1380 | 1550 | ||||
| 630 | 1210 | 5880 | 0.85 | 49 | 1200 | 950 | 1450 | 1820 | ||||
| 630 | 6 | 1170 | 5960 | 0.85 | 50 | 1320 | 950 | 1375 | 1850 | |||
| 800 | 1370 | 6960 | 0.85 | 51 | 1310 | 1000 | 1315 | 2150 | ||||
| 1000 | 1590 | 8130 | 0.85 | 52 | 1400 | 1070 | 1520 | 2550 | ||||
| 1250 | 1880 | 9690 | 0.85 | 53 | 1440 | 1150 | 1570 | 3020 | ||||
| 1600 | 2210 | 11730 | 0.85 | 54 | 1650 | 1200 | 1795 | 4500 | ||||
| 2000 | 2750 | 14450 | 0.7 | 55 | 1800 | 1260 | 1870 | 5300 | ||||
| 2500 | 3240 | 17170 | 0.7 | 56 | 1950 | 1260 | 2035 | 6200 | ||||
