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One Comment September 25, 2024

Three phase 200 kVA isolation transformers is 50/60Hz rated, dry type air self cooling of cooling method, step up/down voltages between 240 Volt and 480 Volt. The biggest advantage that isolation transformers offer is improved safety. Another advantage of isolation transformers is that they reduce power surges.

Generally, isolation transformers with power above 150KVA will be equipped with an alarm, which is used to detect the temperature of the transformer. When the temperature of the transformer rises to 150 degrees, the alarm will be triggered. At this time, the transformer needs to be manually suspended or stopped. Wait until the transformer temperature returns to normal, then continue to use.

200 kVA Isolation Transformer Specifications

Basics Model ATO-SG200KVA
Phase 3 phase
Capacity 200 kVA
Weight of Aluminium Wire Transformer Open type: 495kg
Protected type: 630kg
Weight of Copper Wire Transformer Open type: 570kg
Protected type: 705kg
Technical Parameters Primary Voltage 480V (Optional: 190V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
Secondary Voltage 240V (Optional: 190V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
Frequency 50Hz / 60 Hz
Winding Material Aluminium/Copper wire (Optional)
Work Efficiency ≥95%
Insulation Resistance ≥50 MΩ
Electrical Strength 3000V AC/1 min
Noise <35-65dB (1 meter)
Insulation Grade H level
Wiring Mode Dyn11
Cooling Mode Dry type air cooling
Overload Capacity Allow more than 1.2 times rated load to work for up to 4 hours
Enclosure Protection Grade IP 22
Certificate CE, ISO
Warranty 12 months
Working Environment Temperature -15℃~+40℃
Humidity ≤90%RH, without condensation
Altitude <1000m, non corrosive gas and conductive dust

Note:

Transformer can only convert voltage and CANNOT convert frequency.
Transformer CANNOT convert single phase voltage to 3 phase voltage.
Input/output voltage, power rating and whether with shell of all transformers, can be customized according to clients’ requirements.

3 Phase Isolation Transformer Schematic Diagram

ATO isolation transformers schematic diagram

3 Phase Isolation Transformer Details

High capacity isolation transformer details

200 kVA Isolation Transformer Installation Dimension

150kVA 800kVA isolation transformer dimension

Aluminium Wire Transformer Size Copper Wire Transformer Size
Open type: a*b*c=900*400*840mm Open type: a*b*c=880*400*755mm
Mouting size: d*e=500*350mm Mouting size: d*e=500*350mm
Protected type: A*B*C=1200*700*1500mm Protected type: A*B*C=1200*700*1500mm

Tips: Additional notes about installation of isolation transformer:

  1. The secondary ends of the transformer to be grounded is forbidden;
  2. People is prohibited to touch the transformer’s terminals at the same time, otherwise, electric shock could occur.
  3. Users usually ignore the importance of the grounding of isolation transformer. It reduces the effect of transformer because of the bad isolation measures.
  4. Isolation transformer has the function of harmonic filtration, however, if the requirement beyond the supply, it is best to add a filter.