Complaint
Power Transformer
Power transformers are a core component of power transmission system. The substation transformer used for power transmission and transformation in a unit or substation, and is also the core part of the substation. Transformers are the core equipment of the traction power supply system of electric locomotives, and also the key equipment to ensure the safe and stable operation of the traction power supply system.
Product Description
Design | Sealed-tank system /Inert-gas pressure system or Conservator-tank system without diaphragm On load or no load voltage tap changer
ONAN/ONAF/ODAF/OFAF/OFWF/KNAN/KNAF |
Insulation |
Mineral Oil Inhibited I Not Inhibited I Vegetable oil |
Primary voltage |
Up to 230kv, up to 900kv BIL |
Capacity |
Up to 240MVA |
Frequency |
50/60 HZ |
| Ambient temperature: | -50 ºC~40 ºC |
| Relative humidity: | ambient air relative humidity should be below93%, |
| Altitude: | ≤1000m |
| Max wind speed: | ≤35 m/s |
| Earthquake acceleration: | horizontal acceleration ≤0.3g |
| vertical acceleration | ≤0. 15g |
| Special conditions: | customized products are available. |
| (KVA) Rated Power | (KV) High Voltage | (KV) Low Voltage | Connection Symbol | Short Circuit Impendence (%) | No-load Loss (KW) | On-load Loss (KW) | No load Current (%) |
| 10000 | 69 | 6.3 6.6 10.5 11 | YNd11 | 9 | 12.1 | 47.6 | 0.75 |
| 12000 | 12.6 | 56.5 | 0.53 | ||||
| 15000 | 15.1 | 69.5 | 0.49 | ||||
| 20000 | 17.9 | 84.2 | 0.49 | ||||
| 25000 | 21.1 | 99.5 | 0.42 | ||||
| 30000 | 25.1 | 120 | 0.42 | ||||
| 37500 | 30 | 140.3 | 0.39 | ||||
| 50000 | 35.4 | 174.3 | 0.39 | ||||
| 60000 | 42.1 | 210 | 0.39 |
| (KVA) Rated Power | (KV) High Voltage | (KV) Low Voltage | Connection Symbol | Short Circuit Impendence (%) | No-load Loss (KW) | On-load Loss (KW) | No load Current (%) |
| 10000 | 69 | 6.3 6.6 10.5 11 | YNd11 | 9 | 11.6 | 47.6 | 0.75 |
| 12000 | 13.6 | 56.5 | 0.53 | ||||
| 15000 | 16.3 | 69.5 | 0.49 | ||||
| 20000 | 19.2 | 84.2 | 0.49 | ||||
| 25000 | 22.6 | 99.5 | 0.42 | ||||
| 30000 | 26.8 | 120 | 0.42 | ||||
| 37500 | 31.9 | 140.3 | 0.39 | ||||
| 50000 | 38.6 | 174.3 | 0.39 | ||||
| 60000 | 44.4 | 210 | 0.39 |
| (KVA) Rated Power | (KV) High Voltage | (KV) Low Voltage | Connection Symbol | Short Circuit Impendence (%) | No-load Loss (KW) | On-load Loss (KW) | No load Current (%) |
| 10000 | 115 138 161 | 6.3 6.6 10.5 11 | YNd11 | 10.5 | 11.8 | 51.2 | 0.82 |
| 12000 | 13.7 | 59.5 | 0.82 | ||||
| 15000 | 16.3 | 73.1 | 0.76 | ||||
| 20000 | 19.5 | 88.4 | 0.76 | ||||
| 25000 | 22.7 | 105 | 0.69 | ||||
| 30000 | 27.4 | 126 | 0.69 | ||||
| 37500 | 32.9 | 148 | 0.63 | ||||
| 50000 | 38.9 | 184 | 0.63 | ||||
| 60000 | 46.4 | 221 | 0.57 |
| (KVA) Rated Power | (KV) High Voltage | (KV) Low Voltage | Connection Symbol | Short Circuit Impendence (%) | No-load Loss (KW) | On-load Loss (KW) | No load Current (%) |
| 10000 | 115 138 161 | 6.3 6.6 10.5 11 | YNd11 | 10.5 | 10.5 | 50.2 | 0.64 |
| 12000 | 12.4 | 59.5 | 0.64 | ||||
| 15000 | 15 | 73.1 | 0.59 | ||||
| 20000 | 17.8 | 88.4 | 0.59 | ||||
| 25000 | 21 | 105 | 0.54 | ||||
| 30000 | 25 | 126 | 0.54 | ||||
| 37500 | 29.9 | 148 | 0.56 | ||||
| 50000 | 35.3 | 178.5 | 0.52 | ||||
| 60000 | 41.9 | 221 | 0.48 |
| (KVA) Rated Power | (KV) High Voltage | (KV) Low Voltage | Connection Symbol | Short Circuit Impendence (%) | No-load Loss (KW) | On-load Loss (KW) | No load Current (%) |
| 30000 | 230 | 6.3 6.6 10.5 11 34.5 66 | YNd11 | 12 | 30 | 128 | 0.69 |
| 37500 | 36 | 149 | 0.63 | ||||
| 50000 | 43 | 180 | 0.63 | ||||
| 60000 | 50 | 209 | 0.57 |
| (KVA) Rated Power | (KV) High Voltage | (KV) Low Voltage | Connection Symbol | Short Circuit Impendence (%) | No-load Loss (KW) | On-load Loss (KW) | No load Current (%) |
| 30000 | 230 | 6.3 6.6 10.5 11 34.5 66 | YNd11 | 12 | 28 | 128 | 0.7 |
| 37500 | 33 | 149 | 0.7 | ||||
| 50000 | 39 | 180 | 0.65 | ||||
| 60000 | 46 | 209 | 0.65 |
| Winding resistance | Winding insulation resistance |
| Core insulation resistance | Ratio |
| Polarity and phase relation | Insulation power factor |
| Control(auxiliary) cooling losses | Single-phase excitation tests |
| Noload losses and excitation current | Impedance voltage and load losses |
| Zero-phase sequence impedance voltage | Temperature rise |
| Low frequency dielectric tests | Low frequency dielectric tests on axiliary devices |
| control, and current transformer circuits | Lightning impulse |
| Front of wave impulse | Swithing impulse |
| Partial discharge | Audible sound level |
| Operational tests (all devices) | Dissolved gases in oil |
| Leak test |
Daelim Belefic builds power translormers that deliver power to the consumer efficiently and reliably.
Daelim's transformers have been exported to America, Canada, Mexico, Australia, Chile, Ecuador, Venezuela, Honduras, El Salvador, Panama and other countries. DAELIM have helped many international customers to successfully obtain transformer projects and continue to carry out in-depth cooperation.
