Thursday, April 29, 2010

13.

Today, everybody have works to be done. but not me :) i'm still learning a new things everyday. First, we go to Telekom substation because the workers want to fill up the drain (cable route) with sand in the transformer room and switch gear room. Before filled up the drain with sand, they have to empty the drain ( water drains ) , only then they can started filled up the drains with sand.

































































We have cable tracing again. but today i follow them tracing the cable on the road. We spent most of the time at the PMU majidee. We have to trace three cable between PPU to substations to identify the cable route for cable resite.




















the multimeter is for phase sequence testing. We want to create parallel system so we have to check whether the phase sequences is correct.r-r , y-y , b-b if it is in phase, the reading will b closed to 0v. if the phase is different, it will gave reading up to 120v ( for example, it depends on switchgear types. usually, the tools for phase sequences testing is 'catu' ( the brands name ). multimeter is just an alternative way for phase sequence testing.












ht tower, 132kv































remote room. for ht switching, we have two ways to operate breaker. One way is using this remote, or manually. Every time we want to do a shutdown project, we have to inform person in charge at the RCC ( regional control centre ) about our switching. They will know our load and if it is overloading, they have the rights to stop us from doing any switching. The breaker operate using DC, 110v.









Thats all :)

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