Dry Type Transformer
Offer custom-designed products with varying voltage levels to meet the requirements of different national power grids and provide OEM services.
Dry Type Transformer For Sale
Dry-type transformers offer superior safety, reduced maintenance, and environmental friendliness compared to oil-filled units. Ideal for 33kV urban grids, industrial facilities, and buildings, they provide efficient, reliable power distribution with minimal fire risk and compact design.
Main Parameters
Power rating: 30-2500 kVA
Primary voltage: 33kV
Secondary voltage: 400V
Working Conditions
Altitude should not exceed 1000 meters.
Operating environment temperature should be between -25℃ and +40℃.
The relative humidity should not exceed 90%(+25℃).
The vertical inclination does not exceed 5°.
The outdoor wind speed does not exceed 35m/s.
Tengyi Dry Type Transformer Advantages
Dry-type transformers provide a superior solution in terms of safety, maintenance, and environmental impact compared to their oil-filled counterparts. Their versatility makes them suitable for a wide range of applications, from large-scale power distribution networks to smaller residential and commercial buildings.
Patented Vacuum Casting
Utilizes unique flame-retardant materials, results in a transformer that self-extinguishes upon exposure to flames. This provides protection against fire damage.
Superior Fire Safety
Tengyi adopts the F1 fire rating, achieved through a unique flame-retardant resin, ensures exceptional fire protection, exceeding industry standards for safety.
Exceptional Lightning Resistance
The transformer’s high lightning impulse withstand level (175kV for 33kV products) provides robust protection against lightning strikes, ensuring reliable operation.
Robust Temperature Control
A comprehensive temperature monitoring and control system, combined with forced-air cooling, allows 120% rated load operation under demanding conditions.
Premium Low-Voltage Winding
Low-voltage copper foil windings, insulated with thermosetting epoxy prepreg cloth, provide excellent dielectric strength and long-term reliability.
High-Quality Core Material
Tengyi utilizes premium cold-rolled grain-oriented silicon steel with mineral oxide insulation which ensures low core losses, thus minimizing energy waste.
Dry Type Transformer Specification
| Capacity | Rated voltage & Off-load tapping | Vector Group Symbol | NO-load loss（W） | Load loss（W） | NO-load current(%) | Short circuit impedance(%) | ||
| H.V(kv) | High pressure Tap range(%) | L.V(kv) | ||||||
| 30 | 11 10.5 10 6.6 6.3 6 | ±5% ±2.5% | 0.4 0.69 | Dyn11 Yyn0 | 190 | 710 | 2 | 4 |
| 50 | 270 | 1000 | 2 | 4 | ||||
| 80 | 370 | 1380 | 1.5 | 4 | ||||
| 100 | 400 | 1570 | 1.5 | 4 | ||||
| 125 | 470 | 1850 | 1.3 | 4 | ||||
| 160 | 540 | 2130 | 1.3 | 4 | ||||
| 200 | ±5% ±2×2.5% | 620 | 2530 | 1.1 | 4 | |||
| 250 | 720 | 2760 | 1.1 | 4 | ||||
| 315 | 880 | 3470 | 1 | 4 | ||||
| 400 | 980 | 3990 | 1 | 4 | ||||
| 500 | 1160 | 4880 | 1 | 4 | ||||
| 630 | 1340 | 5880 | 0.85 | 4 | ||||
| 630 | 1300 | 5960 | 0.85 | 6 | ||||
| 800 | 1520 | 6960 | 0.85 | 6 | ||||
| 1000 | 1770 | 8130 | 0.85 | 6 | ||||
| 1250 | 2090 | 9100 | 0.85 | 6 | ||||
| 1600 | 2450 | 11700 | 0.85 | 6 | ||||
| 2000 | 3050 | 14400 | 0.7 | 6 | ||||
| 2500 | 3600 | 17100 | 0.7 | 6 | ||||
About Tengyi
We are a premier enterprise specialising in designing, manufacturing, and testing a wide array of transformers.
Our advanced production facility covers over 11,000 square meters and features a maximum lifting capacity of 240 tons, allowing us to achieve an impressive annual production capacity of 12,000 MVA.
We provide transformers suitable for voltage ranges from 52 to 800 kV, with power ratings from 20 to 600 MVA, and our auto-transformers can reach capacities of up to 1,000 MVA.
Global Cases
Dry Type Transformer Ready to Be Packed
Box Type Transformer For Zambian Client
Dry Type Transformer Ready to Be Sent
Dry Type Transformer Ready to Test
Customer Feedback
Mukthar Moosa
– from South Africa
We needed a transformer for our indoor server room, and safety was paramount. This dry-type transformer was the perfect solution. No oil means no fire risk, and the quiet operation is a huge plus. It’s been running flawlessly for over a year now, and we have complete peace of mind knowing our equipment is protected.
★★★★★
Manzi Jacques
– from Rwanda
We’ve had this dry-type transformer installed for several years now, and it’s been a fantastic investment. The minimal maintenance requirements, combined with consistent, reliable performance and significant energy savings, have more than justified the initial cost. We expect many more years of trouble-free service.
★★★★★
Dry Type Transformer Workshop
Dry Type Transformer Production Details
Transformer Shipment
Quote Tengyi Transformer
We offer custom-designed products with varying voltage levels to meet the requirements of different national power grids and provide OEM services.
Your main parameters of the transformer (voltage, capacity, loss and others)?
Your transformer operating environment (altitude, temperature, humidity, location, etc.)?
Other customized requirements (tap changer, color, oil pillow, etc.)?
Minimum order quantity: 1 unit
