1.Power Capacity: 25-20000KVA
2.Voltage Level: 10KV,11KV, 13.8KV,15KV,17.5KV ,20KV,22KV ,24KV ,30KV,33KV 35KV 36KV and Others as customers requirement
3.Type of Voltage Regulation: Off-circuit or On-Ioad
4.Tapping Range: ±5 % ±2x2.5 % ±4x2.5 %
5.Frequency: 50Hz or 60Hz
6.Phases: Three or single
7.Connection Symbol: Dyn11,Yyn0 ( or as requested)
8.Short- circuit Impedance: Standard Impedance
9.Altiude is not exceeding 1000m,ambient temperature not exceeding 40OC. If it can't meet such conditions,we will modulate parameters in accordance with standard.
- Oxygen-free copper lines of lower resistivity, which will become smoother and burr-free after series of additional surface treatment, so the load loss of our transformer is lower and the electric performance is better.
- High-quality silicon-steel plates which are of lower unit loss, and the no-load of the transformers is lower.
- High-quality wooden laminating insulation pieces, which won't split or move even under the influence of short circuit.
- Thoroughly filtrated transformer oil containing less water, gas and impurities, which makes our transformers work better.
- High-quality rubber sealing material, which can prevent the transformers form aging or leakage.
| TECHNICAL SPECIFICATION FOR TRANSFORMERS | ||||
| NO. | Description | Unit | Guaranteed Value | |
| 1 | Country of Origin | CHINA | ||
| 2 | Standard | IEC60076 | ||
| 3 | Type | Oil immersed type | ||
| 4 | Brand | Yawei | ||
| 5 | Installation | Outdoor | ||
| 6 | Max. ambient temperature | -30ºC~40ºC | ||
| 7 | Altitude | ≤1000m | ||
| 8 | Rated Power | kVA | 600 | |
| 9 | Primary Voltage | kV | 34.50 | |
| 10 | Secondary Voltage | kV | 3-0.75 | |
| 11 | Rated Frequency | Hz | 60 | |
| 13 | Number of winding | 2 | ||
| 14 | Number of phase | 3 | ||
| 15 | Tap Range | ±2X2.5% | ||
| 16 | Refrigerant | Mineral oil (PCB FREE) | ||
| 17 | Cooling Method | ONAN | ||
| 18 | No-load losses | w | 1230 | |
| 19 | Load losses | w | 9900 | |
| 20 | Impedance | % | 6.50 | |
| 21 | The temperature rise -Top oil | K | 60 | |
| 22 | The temperature rise --Winding | K | 65 | |
| 23 | Basic insulation level(BIL) | |||
| a) | Primary | kV | 170 | |
| b) | Secondary | kV | 60/0 | |
| 24 | Power frequency withstand voltage | |||
| a) | Primary | kV | 70 | |
| b) | Secondary | kV | 20 | |
| 25 | Vector Group | Dyn11 | ||
| 26 | Core material | Grain oriented silicon steel | ||
| 27 | Winding material(HV/LV) | COPPER | ||
| No. | Item | Data |
| 1 | Aplication | photovoltaic |
| 2 | Type | insulating mineral oil ,according to standard IEC 60296 |
| 3 | Cooling method | ONAN |
| 4 | Installation | Outdoor / Indoor |
| 5 | Primary nominal voltage | 34.5 KV (available 13.2KV, 13.8KV 15KV ,11KV..) |
| 6 | Secondary nominal voltage | 800 V |
| 7 | Frequency | 60 Hz |
| 8 | connection group | Dyn11 Yn11 (secondary double winding) |
| 9 | Losses | Reduced |
| 10 | Max. losses in empty (no load) | BK36B036 |
| 11 | Max losses in load | BK36B036 |
| 12 | Tapping changer | ± 2 x 2.5% , manual |
| 13 | short-circuit impedance | 6% |
| 14 | class | A |
| 15 | Corrosion | C 4 |
| 16 | Electrostatic screen between MT/BT | Yes, connect to ground |
| 17 | DV/DT | 500V /us |
| 18 | MT side connection | by angled plug-in terminals |
| 19 | BT side connection | through terminals on copper plate |
| 20 | Connection protections MT side | metal drawer cover for outdoor IP55 (Optional) |
| 21 | Connection protections BT side | IP55 metal outdoor cover drawer with cable glands for BT cable entry (optional) |
| 22 | Cuba oil collection and filter | optional |
| 23 | wheels | yes |
| 24 | lifting lugs | yes |
| 25 | filling arrangement oil and drainage | yes |
| 26 | communication and control | DGPT2 digital output signals |
| 27 | product warranty | ≥ 2 years |
"Jiangxi Yawei Electrical Co.,Ltd." is engaged in manufacturing,development,service ,solution,maintenance & marketing of H.V./L.V. power distribution equipments,switchgears,transformers,substations..etc .for all over the world. As a leading & professional manufacturer in China,we mainly manufacture below items and supply their electrical accessories:
· H.V.& L.V.switchgears
· Power Distribution Board (PDB)
· M.V solid insulated switchgears (SIS)
· compact substations /Package substation/kiosk substation
· single phase & three phase pad mounted transformers(PMT)
· Gas insulated switchgears(GIS)
· Cable Brach box
· Ring main units (RMU)
· Oil-immersed transformers and dry type transformers
· Vacuum circuit breakers (VCB),Air circuit breakers(ACB),vacuum switch and contactors.