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Oltc Distribution Transformer
Oltc Distribution Transformer
Guru Teg Bahadur Metal Works offers a wide range of OLTC distribution transformer.
- Multiple tapings from HV winding are brought to the OLTC chamber and connected to fixed contacts; moving contacts rotate with the help of rotating mechanism, usually a Geneva mechanism having a spindle.
- 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.
- The spindle can be rotated manually as well as electrically with a motor; the 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.
- Two push buttons are fitted on the LCP (low control panel) to rotate the motor and hence the OLTC contacts which controls the output LV voltage of the transformer.
- An RTCC (remote tap changer controller) is installed with the transformer hot panel for automatic operations.