Our company uses the high quality material and the advanced processing technology, is specialized in producting SG, DG series three-phase and single-phase dry type insulating transformer, not only this series transformer has the live pressure function in the electrical network, but also may isolate the electrical network to the equipment triple frequency, protects insulation material from giving off heat produced by the machine. It is suitable for the import equipment (380V to enter →220V, 380V specially enters -> any voltage output, 220V enters -> any voltage output),which specification is between 1KVA~600KVA. SG, DG series dry type insulating transformer is widely used in each kind of three-phase power supply situation, the frequency is 50~60HZ, the input, the output voltage does not surpass 500V.It has widespread load, can withstand the instantaneous overload, may the long-term continuous working, the fire protection moisture-proof, safe reliable, the energy conservation and the maintenance convenient characteristic.
The input and output voltage (single-phase, three-phase or multi-channel inputs and output and so on), the joint way, adjusts the tap position, the winding capacity assignment, the secondary equipment, outside the box (basis on different use environment choice), may depend on the careful design and the manufacture according to user's request.
Product feature: ·Save energy and low noise
Uses the high quality cold rolling silicon steel plate to fold the attire; Uses special dipping lacquer craft processing, effectively reduced the movement vibration and the noise; As well as uses the thermostable insulation material design and so on the new craft, the new technical introduction, causes the transformer even more to save energy, more tranquilly. Energy save low noise coil leaves leeway ventilates, the air transport is unimpeded, which effectively reduced the coil temperature. ·High reliability
Reasonable structure, high efficiency, no wave distorted, and easy to operate, can run for long time. the performance completely conform to the GB/6450 dry type power transformer standard requirement. It may isolate the main electrical network power supply, guards against the impact, guards against the disturbance, guards against the thunder and lightning. ·Environmental protection characteristic
It has thermal stability, the moisture-resistance, the stability, chemistry compatibility, the low temperature, the radio-resistance and the non-toxicity. ·Multi-purpose
It is developed from single transformer to the forced-air cooling, the protection outer covering, the mutual inductor from the sole transformer and so on the multi-purpose combined transformer.
Technological performance:
transformer
Temperature rise limit value K
Test method
item
Allowable tolerance (%)
coil
B
80
resistance
Idling loss
+15
F
100
Load loss
+15
铁芯及结构
零件表面
Don’t surpass the contact insulation material most permission temperature rise
Thermometer or thermo-element
Total loss
+10
Insulation level: The transformer can withstand the 2000V 50Hz testing voltage, lasted 1min does not penetrate, not arc-over. Twice frequency and voltage, it can last 1min
Idling current
+30
Resistance and reactance voltage
10
Transformer ratio
0.5
DC resistance dis-equilibrium ratios
Line
2
Phase
4
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