product description
Feature of Double High-Voltage Convertible Dry-Type Transformer
When a series of dry-type transformers is connected to a line voltage of 20KV or 10KV, the connection state between two windings of each phase high-voltage coil is controlled by a conversion device, and the purpose of voltage conversion is achieved in series or parallel, while the output voltage is constant, thereby realizing a transformer product can be connected to the 10KV, 20KV class two voltage systems during the non-synchronous period. It is a transitional product when the network power 10KV will be upgraded to 20KV. It can reduce the repetitive investment but convenient and quick conversion and also has stable product performance.
Technical Requirement of Double High-Voltage Convertible Dry-Type Transformer
Environment: -25℃~40℃
Altitude(m): 100 meters or less
Insulation Class: F Class
Frequency(Hz): 50
Tap Range: ±5%、±2*2.5%
Voltage Regulating Mode: No-load Voltage Regulating
Cooling Type: AN/FN
Technical Parameter of Double High-Voltage Convertible Dry-Type Transformer
Executive Standard: IEC60076 & National Standard
| HV:20/22/24 LV:0.4/0.415 | |||||
| Capacity | Connection Group | No-Load Loss W |
On-Load Loss W |
No-Load Current % |
Short-Circuit Impedance % |
| 250 | Dyn11 | 900 | 3150 | 2 | 6 |
| 320 | 1050 | 4200 | 2 | 6 | |
| 400 | 1100 | 4900 | 2 | 6 | |
| 560 | 1320 | 6000 | 2 | 6 | |
| 630 | 1600 | 6500 | 2 | 6 | |
| 750 | 1900 | 770 | 1.5 | 5.6 | |
| 800 | 1900 | 8500 | 1.5 | 6 | |
| 1000 | 2200 | 10000 | 1.5 | 6 | |
| 1250 | 1650 | 11000 | 1.5 | 6 | |
| 1500 | 2900 | 11426 | 1.5 | 5.6 | |
| 1600 | 2900 | 13000 | 1.5 | 6 | |
| 2000 | 3500 | 16000 | 1 | 6 | |
| 2500 | 4300 | 19000 | 1 | 6 | |
| 3000 | 4900 | 22000 | 1 | 6 | |
| 3200 | 5200 | 23000 | 1 | 6 | |
| 3500 | 5700 | 25000 | 1 | 6 | |
| 4000 | 6200 | 27000 | 1 | 6.5 | |