The explosion-proof dry transformer for rectifying power supply It is applicable for the place with west environment under the coal mine, including gas and coal dust, and with explosion hazard, coordinates with the rectifier equipment, and provides power supply for the equipment.
Rated capacity (kVA) |
Voltage combination (kV) |
Connection unit symbol |
Loss |
Impedance voltage (%) |
No-load current (%) |
Load level |
||
Grid side voltage |
Valve side voltage |
No load |
Load |
|||||
500 |
6±5% |
0.48 |
Yd11 |
1500 |
3100 |
6 |
1.5 |
V |
630 |
1800 |
3680 |
10 |
1.5 |
||||
800 |
2050 |
4500 |
10 |
1 |
||||
1000 |
2350 |
5400 |
10 |
1 |
||||
1250 |
2750 |
6500 |
10 |
1 |
1. Low no-load loss
The high-quality cold rolled grain-oriented silicon steel sheet with high permeability and low loss is adopted for manufacturing. 45° fully-beveled seamand multi-stage step stacking structure, which effectively reduces no-load loss, no-load current and noise.
2. Low noise
The noise is from the iron core, and is transferred to the surrounding through the shell. The connecting position is added with silica gel plate, which cuts off the noise spreading approach.
3. Light weight and small volume
5. The explosion-proof dry transformer for rectifying power supply as the explosion-proof and damp-proof performance.
5. Energy conservation and environmental protection
1) Nomex paper-wrapped line with insulation grade C imported from American DuPont Company is adopted, air insulation and cooling. It has no pollution on the environment, and the product has long service life; the product can be decomposed for recovery after the service life is ended;
2) The high-quality 30Q130 cold-rolled oriented silicon steel sheet and oxygen-free copper conductor are adopted, so that the actual total loss is lower than that of the foreign similar products, which saves the energy, and lowers noise. The iron core surface is applied with the high-temperature-resistant rust-proof and damp-proof paint, Grade H insulation material is adopted for the iron core insulator, and there is no damage after operation at high temperature for a long term.
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