Working principle of autotransformer Autotransformer design
1. Product Description
1. Autotransformers are divided into single-phase (ODG) and three-phase (OSG) series. The autotransformer has only one set of coils, and the secondary coil is tapped from the primary coil. , its electric energy transmission, in addition to electromagnetic induction transmission, also has electricity transmission. This kind of transformer uses less silicon steel sheets and wires than an isolation transformer, and has a lower cost. It is widely used in industrial and mining enterprises and places where import and export equipment are used.
2. This series of products is suitable for AC 50/60Hz and working voltage below 1000V. The insulation heat resistance grade of this series of transformers is Class F.
3. The core of this product is made of stacked cold-rolled oriented high-quality silicon steel sheets. The coil structure adopts cylinder, elliptical cylinder and rectangular cylinder types. Small size, excellent performance, safe and reliable.
4. The products are produced in accordance with the national standard GB19212.14 or the Ministry of Machinery Standard JB/T8750-1998.
2. Ordering requirements
Indicate model, rated capacity, input and output voltage, number of phases, operating ambient temperature (standard 40℃), whether Other conditions such as protective covers are required.
3. Technical parameters
Rated power: 50/60 (KVA)
Efficiency (η): 99%
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Voltage ratio: 400/220(V)
Shape structure: vertical
Cooling method: natural cooling
Moisture-proof method: open Type
Number of windings: autocoupling
Core structure: shell type
Cooling type: dry type
Core shape: E type
Number of power supply phases: three phases
Frequency characteristics: low frequency
Model: OSG
Application scope: special
Autotransformer – Technical parameters:.
Name: Three-phase autotransformer
Model: QZB (1KVA-1000KVA)
Input voltage three-phase: 220V, 380V, 660V, 690V (customers can customize the voltage)
Three-phase output voltage: 100V, 110V, 220V, 380V, 660V, 690V (customers can customize the voltage)
Temperature rise: 155 degrees Celsius (including ambient temperature)
Withstand voltage: 3000V without breakdown
Insulation level: F level
Noise: <60db (one meters away)
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