3.3kva toroidal transformer/ring power transformer step up down transformer
3.3kva Toroidal transformer ( ring transformer) features:
- Basic data:
- Capacity: 8VA - 60kVA
- Phase: single
- Input voltage: AC power with voltages of various countries
- Output voltage: AC, according to customers' requirement
- Frequency: 50/60Hz
- Power factor: 0.9 to 0.98
- Efficiency: 75 to 98%
- Voltage Regulation: 12 - 3%
- Output no-load loss: 0.5 to 10.0W
- Temperature-rise: ≤85°C
- Insulation class: B, 130°C; E, 120°C
- General features:
- 100% QC from raw material to finished products
- Good price-function ratio
- Reliable performance and safety
- Small volume and low weight
- Low mechanical hum
- Good shielding performance, low magnetic leakage
- Dimension adjusted freely
- Easy to mount and fasten
- Excellent workmanship
- Testing items:
- No-load test (no-load current, no-load voltage, no-load loss)
- Load test (load voltage, temperature-rise)
- Inductive voltage test
- DC resistance test
- Safety test
- Key parts:
- Core:
- Wound by high-quality cold grain silicon
- Annealed by advanced vacuum annealing furnaces to improve electronic data
- Any dimension from customer available
- Wire: copper and aluminum available
- Weld aluminum enamel wire well to save your cost 15 - 35%, based on our know-how technology
- Thermal protector: cutoff and switch both available
- Core:
- Application:
- Electronic meter and apparatus
- Cable TV and digital network
- Electronic control
- Medical Equipment
- New electric power supply
- Decorative illumination system
- Monitoring and control equipment
- Installation: horizontal (non-conventional-type base plate), sunk, side type, bridge
Testing process
1. No-load test (included no-load voltage, no load current and no load loss);
2. Inductive voltage test;
3. Load test (load voltage and temperature rise;
4. Temperature rise test;
5. Insulated resistance;
6. Hi-pot test;
7. Leakage inductance test;
8. DC resistance test;
9. Surface inspection.
Production Line



Our Advantages:
1. 20 years experience in transformer and inductor manufacturing;
2. Scientific management system, strong technical team, and strict quality control system;
3. RoHS,CE,TUV and UL certified;
4. OEM & ODM;
5. Competitive price,in time delivery and perfect after-service online.
Packing&Shipping

1. No-load test (included no-load voltage, no load current and no load loss);
2. Inductive voltage test;
3. Load test (load voltage and temperature rise;
4. Temperature rise test;
5. Insulated resistance;
6. Hi-pot test;
7. Leakage inductance test;
8. DC resistance test;
9. Surface inspection.
Production Line



Our Advantages:
1. 20 years experience in transformer and inductor manufacturing;
2. Scientific management system, strong technical team, and strict quality control system;
3. RoHS,CE,TUV and UL certified;
4. OEM & ODM;
5. Competitive price,in time delivery and perfect after-service online.
Packing&Shipping
