Frequently Asked Questions: Buck-Boost Transformers
View more information on Micron’s Buck-Boost Transformers.
What is a transformer?
A transformer is a passive electrical device which is designed to change one voltage to another by magnetic induction.
What is an isolation transformer?
An isolation transformer, also referred to as an insulating transformer, is one where the primary and secondary windings are separate, as opposed to an autotransformer where the primary and secondary share a common winding.
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What is the effect of altitude on a transformer?
A transformer may be used at full nameplate capacity up to 3300 feet (1000 meters). Above that altitude, the capacity of the transformer should be derated by 0.3% for each 300 feet of elevation above 3300 feet.
Is one insulation system better than another?
One insulation system is not necessarily better than another. Each will typically provide a comparable life expectancy. The choice of an insulation system depends upon application, performance, and cost considerations.
- Connect the primary leads to any two wires of the three phase source to obtain a single phase output using a single transformer.
- Bank three single phase transformers to be connected in either a delta-delta or delta-wye configuration for a three phase output. The equivalent three phase capacity when properly connected is three times the nameplate rating of each individual single phase transformer.
What type of winding material is utilized in transformers?
Transformers are typically wound with either copper or aluminum conductors. There is no difference in ultimate electrical performance between the two. All Micron General Purpose and Buck-Boost transformers 2KVA and below are copper wound. Units 3KVA and larger are aluminum.
Can General Purpose transformers be reverse connected?
Single phase General Purpose transformers rated 3KVA and above can be reverse connected with no loss in capacity and with voltage stability. Single phase units rated 2KVA and below have compensated windings. These may be reverse connected, but the output voltage will be less than nameplate due to the compensation factor of the windings.
Can General Purpose transformers be used at frequencies other than that shown on the unit?
Units designed for 50/60Hz operation can be utilized at frequencies up to 400 Hz. Units designed for 60 Hz can similarly be used at frequencies up to 400 Hz but cannot be used at 50 Hz operation.