Autotransformers
Autotransformer is an electrical transformer in which there is one winding, a portion of which is common to both the primary and the secondary circuits. An autotransformer uses common winding and offers no interference or disturbance isolation. The current in the high-voltage circuit flows through the series and common winding. The current in the low-voltage circuit flows through the common winding and adds vectorially to the current in the high-voltage circuit to give the common winding current. Thus, an electrical connection exists between high-voltage and low-voltage winding. Because of this sharing of parts of the winding, an autotransformer having the same kilovolt-ampere (kVA) output rating is generally smaller in weight and dimensions than a two-windings transformer. One possible disadvantage of autotransformers is that the windings are not insulated from each other and that the autotransformer provides no isolation of the primary and secondary circuits. Autotransformers are used in small sizes for intermittent-duty starting of motors called as motor starter. For this use the motor is connected for a short time to the common winding voltage
Standard configuration comes without a neutral lead. It is optional feature, but you can order if you require.
-
500 kVA 600 Volt to 208 Volt Three phase Autotransformer RC500J-B
NOT in stock. Current lead time to manufacture: 12-14 weeksUS$ 37,097.00Catalog No.: RC500J-B
See Full Specification | Add to Compare
Autotransformer 500 kVA • Three Phase • Primary: 600 Volt • Secondary: 208 Volt
Conductor: Copper. • Frequency 60 Hz. -
500 kVA 575 Volt to 208 Volt Three phase Autotransformer RC500J1-B
NOT in stock. Current lead time to manufacture: 12-14 weeksUS$ 35,672.00Catalog No.: RC500J1-B
See Full Specification | Add to Compare
Autotransformer 500 kVA • Three Phase • Primary: 575 Volt • Secondary: 208 Volt
Conductor: Copper. • Frequency 60 Hz. -
500 kVA 480 Volt to 208 Volt Three phase Autotransformer RC500H-B
NOT in stock. Current lead time to manufacture: 12-14 weeksUS$ 30,210.00Catalog No.: RC500H-B
See Full Specification | Add to Compare
Autotransformer 500 kVA • Three Phase • Primary: 480 Volt • Secondary: 208 Volt
Conductor: Copper. • Frequency 60 Hz. -
500 kVA 460 Volt to 208 Volt Three phase Autotransformer RC500H1-B
NOT in stock. Current lead time to manufacture: 12-14 weeksUS$ 29,050.00Catalog No.: RC500H1-B
See Full Specification | Add to Compare
Autotransformer 500 kVA • Three Phase • Primary: 460 Volt • Secondary: 208 Volt
Conductor: Copper. • Frequency 60 Hz. -
500 kVA 416 Volt to 208 Volt Three phase Autotransformer RC500G-B
NOT in stock. Current lead time to manufacture: 12-14 weeksUS$ 26,487.00Catalog No.: RC500G-B
See Full Specification | Add to Compare
Autotransformer 500 kVA • Three Phase • Primary: 416 Volt • Secondary: 208 Volt
Conductor: Copper. • Frequency 60 Hz. -
500 kVA 400 Volt to 208 Volt Three phase Autotransformer RC500G1-B
NOT in stock. Current lead time to manufacture: 12-14 weeksUS$ 25,549.00Catalog No.: RC500G1-B
See Full Specification | Add to Compare
Autotransformer 500 kVA • Three Phase • Primary: 400 Volt • Secondary: 208 Volt
Conductor: Copper. • Frequency 60 Hz.