- Fitted between the air space of conservator and outside vent for power transformer
- The breathing of transformer during load cycles takes place through breather.
- Filled with silica gel.
- The silica gel absorbs moisture.
- When the load increases, the load expands and the air from the conservator is expelled.
- During reduced load, the oil level in conservator falls down and the atmospheric air is breathed in side.
- This incoming air is taken through silica gel breather or activated alumina breather,
- Silica gel absorbs moisture.
- Dry silica gel is blue and turns pale pink as it absorbs moisture.
- Wet silica gel can be reactivated /regenerated by drying.
Width of maximum right of way permitted as per forest conservation act ‘1980 and its subsequent amendment dated 25 th October, 1992, are as per Table 1. Researches are being carried out for further optimizing the Right of Way. Guidelines of forest environmental rules shall be followed to avoid excessive tree cutting i.e. all the trees should be cut from root level in the 3 m corridor below each line conductor / earth wires. In the balance corridor, trees branches are only to be lopped to attain the specified clearance as per Table 1. Table 1 – Guidelines for Right of Way as per forest conservations act 1980 and subsequent amendment dated 25 th October, 1992 Line voltage (kV) 66 110 132 220 400 500 HVDC 765 Row width (Meter) 18 22 27 35 52 52 85 Electrical clearance: Electrical clearance while power lines crossing each other. In case of power line crossings, minimum clearance between lowest conductor of line and ground wire / top conductor of ...