Week 2 (Day 1)

- Attend TNB stuff gathering which held every monday at 8am.

- I introduced myself as a trainee in front of all the stuff TNB Temerloh.

- After the meeting, I followed team pencawang to stor pencawang.

- After this, we heading to Stesen Suis  Maxis at lanchang,pahang.

- Stesen Suis Maxis used to connect one substation to another substation. 

- It is same as P/E, the difference is stesen suis dont have transformer.

- Normally Stesen Suis Maxis located at non housing area.

- We are here to replace the new cable because we got report that the cable has been stolen.

 

- After finish replacing cable, we go to P/E KG PUNJONG.

-In this P/E, the transformer is not connected to feeder piller but a black box.

- The black box has the same function as the feeder piller.

- The difference is the feeder piller mostly used in housing area while black box mostly used in non-housing area.

- The cost for black box is cheaper.

- En. Zahhari explained to me the four important step to shut down a P/E 

1) Matikan (push to trip Circuit breaker)

2) Asingkan ( earth switch push to right)

3) Buktikan Mati (test on transformer)

4) Bumikan (Earth ON)

- After doing all the maintainence job, make sure we EARTH OFF it.

- Then, we go to SSU Lanchang.

- Battery (30V) for SSU

- Battery (110V) for PMU and PPU

- Battery is used to supply electricity to Switch gear (from transformer)

- When the main P/E having fault and cause breakdown,the other two P/E will be affected (break down),then bus station will switch on. 

- Then other two P/E will recover from breakdown but the main P/E still in break down condition.

===================================================================

- When customer complain (the light blinking),the possible condition is the transformer voltage drop.

- To solve it , We adjust the OLTC (off load tab changer) manually  to increase the voltage.

-off load tab changer for every substation except PPU

- PPU using on load tab changer (Automatically adjusted)

There are 3 main things we need to understand; generation,transmission and distribution.

the function of the generation is to provide total power needed.they are connected at common point called bus.

while transmission is important to transfer electric energy from generating units at various location to distribution system which ultimately supplies the load.

next is the distribution part, which connects the distribution substations to consumer's service-entrance equipment.