yuhuu~
~2nd day~
Today, me and my colleague learned about PSSU(Power System Simulator for Utilization) and PSS/Adept(Advanced Distribution Engineering Productivity Tool) which used to model,simulate and analyse network in a distribution system.
and we have been assigned an assessment of Pulau Pangkor System Schematic Diagram .We need to know about the node,voltage(kV),static load(kva,pf),input data(from-to),Length(km) and size needed in order to get the output. we took 4 hours to finish the assessment. There were some errors which we can see the diagram became red in colour, so, in order for us to fix the system, we need to alter the system until the line become green in colour. moreover, we have to suggest about the best point in the network during breakdown happen.
an utility company also need to get the power factor equal or almost 1 to reduce losses otherwise they can install the capacitor bank.
it was cool after we managed to finish it..
and we have been assigned an assessment of Pulau Pangkor System Schematic Diagram .We need to know about the node,voltage(kV),static load(kva,pf),input data(from-to),Length(km) and size needed in order to get the output. we took 4 hours to finish the assessment. There were some errors which we can see the diagram became red in colour, so, in order for us to fix the system, we need to alter the system until the line become green in colour. moreover, we have to suggest about the best point in the network during breakdown happen.
an utility company also need to get the power factor equal or almost 1 to reduce losses otherwise they can install the capacitor bank.
it was cool after we managed to finish it..
Kak Ina was tutoring us about the PSSU/ADEPT software
Lim was struggling to construct the schematic diagram
me too~
this one is still not finish.the system is still not stable yet.in order to make it finish, all the line and nodes should be in a green colour. after do some changes, it's done!
and i forgot to take the picture.
~3rd day~
Today, i went to my first site visit at PPU at Sik.
the plan to the 1st site visit (PPU 33/11 kV Sik)
reached our destination after 30 minutes journey
transformer's control system
while Encik Din was explaining to us about the switch,he said that an overloaded circuit is the primary reason for a breaker tripping and occurs when a circuit is has more connected electrical load than it is supposed to have. When more current runs through the circuit than the circuit was intended to take, the circuit breaker is designed to, well, "break the circuit."after the explaination, suddenly the green lamp turned on. this means that trip happened. so they call the AP (authorized person) to check and fix the problem. the feedback from the AP, he said that it is because of the tnb people hacked the groud to install cable.
this is the Authorized Person (AP)
This is the outdoor PPU System. there are some important parts of the PPU System 33/11 kV.
Power Transformer
Power Transformer's detail
Power Transformer: the right part with the brown disk is the incomer voltage (33kV) cable and the left part with some oily cable is the output voltage (11kV). the oily cable is because of the leakage.
the output cable
Lighting Arrester
Breakers(Red ,Blue and Yellow colour)
Current Transformer
Line Oscillator
The insulator : the disk in green. it can carry 11kV. As we can seefrom the picture, there are 3 disk attached at the end of the cable. so we can say that this PPU is 33 kV.
This is Encik Din who explained a lot about PPU to us for today's site visit.
In the evening, Kak Ina brought us to the place in the picture above. Its is smaller than the previous PPU.
Kak Ina couldn't unlock the hedge
Transformer(front view)Trasmittion from PMU Sg Tiang to Bhg Pembahagian Batu Kemelung
it is step down from 33 kV - 415 V.
that's all
bye2~!
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