The YDW series partial discharge-free ultra-light test transformer is mainly used to test the insulation level of various electrical equipment, insulating materials, and insulating components under power frequency high voltage. It can serve as test equipment for partial discharge measurement and external withstand voltage tests on transformers, instrument transformers, high-voltage switches, cables, and other test objects.
Performance Features
◆ No oil pollution, unaffected by climate changes
◆ Small size, light weight (20%-60% lighter than oil-immersed light test transformers)
◆ Extremely low corona, partial discharge at rated voltage ≤3Pc, partial discharge at 80% voltage ≤2PC
◆ On-site handling without waiting for settling, long service life, maintenance-free, and other advantages
◆ Single unit can achieve high voltage up to 300KV
◆ At rated voltage and rated capacity, continuous operation for 0.5 hours is allowed; continuous operation is allowed at 2/3 rated current
◆ Overvoltage protection: The complete set of equipment should have reliable overvoltage protection to prevent overvoltage occurrence
Technical Parameters
| Specification | Capacity KVA |
Low Voltage Side | High Voltage Side | Measurement Ratio | Temperature Rise ℃ (60 min) | Impedance Voltage % | No-load Current % |
Weight kg |
Dimensions L×W×H mm×mm×mm |
||
| Voltage V |
Current A |
Voltage KV | Current mA |
||||||||
| 1.5/50 | 1.5 | 200 | 7.5 | 50 | 30 | 500 | 50 | 10 | <4 | 30 | 200×275×640 |
| 3/50 | 3 | 200 | 15 | 50 | 60 | 500 | 50 | 10 | <4 | 35 | 240×300×690 |
| 6/50 | 6 | 200 | 30 | 50 | 120 | 500 | 50 | 10 | <4 | 40 | 250×355×710 |
| 10/50 | 10 | 200 | 50 | 50 | 200 | 500 | 50 | 10 | <4 | 60 | 260×375×750 |
| 15/50 | 15 | 400 | 37.5 | 50 | 300 | 500 | 50 | 8 | <4 | 70 | 270×420×800 |
| 20/50 | 20 | 400 | 50 | 50 | 400 | 500 | 50 | 8 | <4 | 85 | 285×440×820 |
| 30/50 | 30 | 400 | 75 | 50 | 600 | 500 | 50 | 8 | <4 | 100 | 295×386×840 |
| 50/50 | 50 | 400 | 125 | 50 | 1000 | 500 | 50 | 8 | <4 | 120 | 320×416×910 |
| 10/100 | 10 | 200 | 50 | 100 | 100 | 1000 | 50 | 10 | <4 | 65 | 350×475×1300 |
| 15/100 | 15 | 400 | 37.5 | 100 | 150 | 1000 | 50 | 8 | <4 | 85 | 510×390×1320 |
| 20/100 | 20 | 400 | 50 | 100 | 200 | 1000 | 50 | 8 | <4 | 100 | 540×400×1340 |
| 30/100 | 30 | 400 | 75 | 100 | 300 | 1000 | 50 | 8 | <4 | 110 | 560×410×1360 |
| 50/100 | 50 | 400 | 125 | 100 | 500 | 1000 | 50 | 8 | <4 | 125 | 600×460×1410 |
| 10/150 | 10 | 200 | 50 | 100 | 66.7 | 1500 | 50 | 10 | <4 | 90 | 265×380×1750 |
| 15/150 | 15 | 400 | 37.5 | 150 | 100 | 1500 | 50 | 8 | <4 | 100 | 510×390×1800 |
| 20/150 | 30 | 400 | 50 | 150 | 133.3 | 1500 | 50 | 8 | <4 | 110 | 540×415×1800 |
| 30/150 | 30 | 400 | 75 | 150 | 200 | 1500 | 50 | 8 | <4 | 125 | 560×430×1800 |
| 50/150 | 50 | 400 | 125 | 150 | 333.3 | 1500 | 50 | 8 | <4 | 140 | 640×490×1850 |
Note: The above information and technical parameters are compiled and released by Yangzhou Dary Electric Co., Ltd.