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Sunday, June 6, 2010

weEk 7~

During week 7,we followed the substation department which is suppposed in week 9,after the planning department. We can't joint the service department because of some problems. Fortunately the substation department have a big lorry where many trainees can also joint them. This department took some time to finish their work. We also experienced working till midnite.
As I already mention on my previous blog,there are some types of substation:
a) Indoor substation
b) Outdoor substation
c) Pole mounted substation (H-pole)
d) Package or Compact substation
This week we have the opportunity to see how they construct the H-pole (pole mounted substation). H-pole located with transformer mounted on a 2-pole or 4-pole structure in rural area where the load density is low. When a single transformer is mounted on a pole, the transformer is either secured directly to the pole or supported by a separate mounting bracket. The separate mounting bracket is widely used because the transformer can be easily removed for replacing and servicing. The maximum capacity is 300 kVA.
There are 3 main compartments of a substation. They are:
a) Transformer
b) Switchgear
c) Low voltage distribution board (LVDB) or feeder pillar
I will explain the detail at week 9, during the substation department.
we check if there is current at the feedar pillar .


H-pole

P/E Kg.Mulong


we face some difficulties during the construction. They need to cooperate with each other in order to complete the task!



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