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Distribution Transformers with OLTC
Distribution Transformers with OLTC
GTB Transformers Pvt Ltd offers Distribution Transformers with OLTC. On load tap changer (OLTC) is used with higher capacity transformers where HT side voltage variation is frequent and a nearly constant LT voltage is required. OLTC is coupled with the transformer itself. Multiple tapings from HV windings are brought to the OLTC chamber and connected to fixed contacts. Moving contacts rotates with the help of rotating mechanism usually a Geneva mechanism having a spindle. The spindle can be rotated manually as well as electrically with a motor. Motor is connected in such a way that it can rotate in both the directions such as to rotate the OLTC moving contacts clockwise and anti clockwise.
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- Chemical plant, Bottling plant.
- Paper mills, Sugar mills, Rolling mills, Steel mills.
- Industries which rely heavily on automation, where electronic cards, PLC and VFDs are used in operations and actuation.