Three Phase Buck-Boost Transformers
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We provides a cost affective solution for many Buck-Boost Transformer Applications. One such transformer is described below.
Voltage available for a 100 KVA output : 460 VAC, 3 PH (X1, X2, X3)
Voltage desired for a 100 KVA output: 480 VAC, 3 PH (H1, H2, H3)
The size of the auto transformer would be 480-460/480 * 100 KVA = 4.2 KVA approx.
Buck-Boost transformer shown above is used as an auto transformer. It may not be a solution for all applications. Check with your electrician and city codes to see if an auto transformer is suitable for your application.
There are instances, when a distribution transformer output is lower than nominal. One solution is to replace the Distribution transformer with a new one. This can be costly. Auto Transformers are very useful in such applications. Auto Transformer is able to boost the output to the nominal value. The distribution transformer provides the necessary isolation, and auto transformer remedies the drop in the output voltage. This results in huge savings.