Mining transformer as the power distribution equipment of the mine, mainly be used in the location with coal dust and methane but without explosive dangerous in mine for electric driving and electricity for lighting.
◆ The core use high quality and low loss cold-rolled silicon steel sheet,which has the advantage of low no-load loss small no-load current and low noise.
◆ Mining general transformer has solid structure、low appearance and is easy to be loaded in mine.The upper part of the transformer has no oil conservator and there is enough room in the upper of the oil in order to prevent producing too much pressure in the tank.
◆ At the both sides of mining transformer have cable box for primary and secondary cable leads.
| Rated Capacity (KVA) | Voltage Combination and Tapping Range | Connection Symbol | No-Load Losses (W) | Load Losses (W) | No-Load Current (%) | Short-Circuit Impedance (%) | ||
| High-Voltage | High-Voltage Tapping Range(%) | Low-Voltage | ||||||
| 50 | 6 10 | ±5 | 0.69 0.4 | Yy0 Yd11 | 130 | 870 | 2.0 | 4.0 |
| 63 | 150 | 1040 | 1.9 | |||||
| 80 | 180 | 1040 | 1.8 | |||||
| 100 | 200 | 1250 | 1.7 | |||||
| 125 | 240 | 1500 | 1.6 | |||||
| 160 | 280 | 1800 | 1.5 | |||||
| 200 | 330 | 2200 | 1.4 | |||||
| 250 | 400 | 2600 | 1.3 | |||||
| 315 | 480 | 3050 | 1.2 | |||||
| 400 | 570 | 3650 | 1.1 | |||||
| 500 | 680 | 4300 | 1.0 | |||||
| 630 | 810 | 5150 | 0.9 | 4.5 | ||||
| 800 | 980 | 6200 | 0.8 | |||||
| 1000 | 1150 | 7500 | 0.7 | |||||
Notes:
