Apgenco installed capacity

And the land is an undulated rocky terrain. So, the project team faced immense difficultly in moving the construction equipment and machineries. Temporary murram road was built to access the site for construction and moving of machineries. Weather: Extreme weather conditions at the project site posed a challenge.

Mitigation: Controlled working hours, project management schedule with utmost precision along with a dynamic work schedule allowed us to deliver the project on time. Arrangement for continuous hydration of the workers ensured better productivity. Mitigation: To quickly address this issue, we had to engage and train local workers for temporary works and hire tractors, trolleys and other small machineries locally to aid the process.

Engineering Issues: There was presence of sheet rock which required multiple blasting cycles to achieve the desired depth of cable trench. Name required.

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Phone Number Please leave this field empty. Company Name. Email required Please leave this field empty. Enter your email address. Jump to page content Accessibility. Log in or Register. Fourth unit of Srisailam hydro plant commissioned 1 January Print Email. Privacy Policy. Opening operation: Opening is affected by pulling the insulating rod , piston rod , puffer cylinder moving contact, moving arc contact and the nozzle.

After contacts wipe the stationary and moving and contact separate, there by generating arc. During down ward movement the gas in puffer chamber builds up and high pressure gas flows through nozzle and quenches the arc. Closing Operation: In closing operation, insulating rod is pulled up and the parts move in the reverse direction of opening operation.

And also SF6 gas taken in to puffer chamber. S Value for A. C Component Percentage D. SF6 is identified as a green house gas. Normally it is open. When line is disconnected, the earthing switch is closed so as to discharge the voltage trapped on the line. Though the line is disconnected, there is some voltage on the line to which the capacitance between line and earth is charged.

This voltage is significant in high voltage system. Before proceeding, with the maintenance work these voltages are discharged to earth by closing the earth switch. Open circuit breaker 2. Open isolator 3. Close earth switching While normalizing closing circuit 1. Open earth switching 2. Close isolator 3. Close circuit breaker. The inductive part is immersed in mineral oil and hermetically sealed with an air cushion inside a steel tank.

One, two or three capacitor units are mounted on the steel tank and are used as capacitive potential divider provided the current taken by the burden is negligible compared with the current passing through the series connected capacitors. CT is ideally a short circuited transformer where the secondary terminal voltage is zero, and the magnetizing current is negligible.

These instrument are used for supplying the voltage circuit of indicating instruments, meters, and protective relay. The errors at which the VTs operate depend on its burden and primary voltage. Trap Wave trap 2. Coupling capacitor 3. Earth switch 4. Drainage coil 5. Lighting arrester 6. Leakage of signal is negligible as lines are insulated with H.