my DE3B damaged!!!!!

we off the breaker in 11 kv switchgear room

than check any possible that causes DE3B failed

from the inspection, the avr card was failure

3rd WEEK(Ist DAY)

today, we fixed gt2.

this are the step taken by us:

• We open the breaker in 11 kv room, then we check the turbine generator circuit breaker,it was in a good condition
  
  · We check the fuse F1,20A,DC and we figure out it was in good condition.Then we check the relay K84(RELAY CIRCUIT BREAKER CLOSE) and K85(RELAY CIRCUIT BREAKER TRIP & CLOSE ENABLE), CBCS( circuit breaker control switch),K114(RELAY DSM GEN SENSE ENABLE), PT(POWER TRANSFORMER)
  

FIGURE 1:POWER TRANSFORMER

FIGURE 2:GENERATOR CIRCUIT BREAKER 52G

· Check the supply power VDC
· OFF the breaker in transformer panel
GREEN-CLOSE BREAKER”ON”
RED-OPEN”OFF”
· Open AUX TRANSFORMER FUSED SWITCH
· Charged the battery breaker(52G)
· Unfortunately we failed to synchronize the relay after we switch on
· We change 2 new relay for K28(RELAY GTG SYNC ENABLE) and K5

FIGURE 3: RELAY

· We test “ON” but still failed
· We shut down again and check fuse at GENERATOR CURRENT BREAKER CUBICLE,(OK)
FIGURE 4:CHECK FUSE
· From PLC, check TB-B-K27-14 AND TB-B-K27-11(OK)


OVERTIME
· Check forwarding fuel pump lamp no 1 & 2
· Check supply from PLC, if K27 not function means K85 also not function (OK),
· TEST RUN at the synch breaker control “failed”


· Check back K114,25Aand B,7K10,6K10 AND it was “ ok”
· We figure out the problem was actually cause by untight wire at K1(RELAY POSITIVE SHUT DOWN MASTER). After we tight back the wire properly and tested on ,the GT2 start running. GT2 ON AT 11.45

2nd WEEK (4TH DAY)

i'm wif MAT Replace back motor at GT1(Gas Turbine) to storage tank because the original motor for GT1 was already fixed. the motor is less horsepower than the motor at storage tank(3Hp). da problem we faced at dat time we are running out a suitable connector BUT dat's a small matter for MAT because his so expert in this field.. and we coorperate wif mechanical college to help us by winding the box for motor place. lastly we need to make sure the motor running clockwise rotation otherwise the oil that should be send to the engine transmit back to the storage tank...huhuhuh

"CAN U FIGURE OUT WAT WOULD BE HAPPEN IF DIS SITUATION OCCUR????"HUHUH

then in da afternoon i'm doing my research in DA control room

SECOND WEEK(3RD DAY)

today i'm wake up in the early morning coz i wanna to learn how to start engine 3B(DG6B) wat a fantastic moment!!!!! it's about 7.15 am i went to control room to see the real demonstration from uncle ALADDIN. There is are step to start up the big engine(DG6B):

1. raised "Governor Speed Low/Raised"(GS L/R) button until 500 rpm




2. then ON (Auto Voltage Regulator-AVR) then raised untill exceed 11kv
   



3. ON synchronizing and make sure its clockwise rotation and stop it between 12. this situation means the engine already synchronize with other engine




4. raised speed( GS L/R) until the POWER 3MW(for the first reading)




5. lastly set AVR until the PF=O.95
   
   FOLLOW the step(1-5) for other engines

around 9 am i'm with electrical gangs participate BOMBA TALK, THEN MKN FREE HAHAHAH, we also practise fire drill and participate the competition that held by them. our departments won the game.HOORAYYYY~~~~~!!!!

we need to running as fast AS FURIOUS to turn off the fire

second week(2nd day)

hohohoh.... i take 1/2 day working coz i got emergency case(secret....hehe)

in the afternoon, i've learn wat we are going to do if TAWAU black out!!!!

1. take order from LDC (LOAD DESPATCH CENTRE) isolate from grid system , BREAKER 33 kv KABOTA(ECG1 & ECG2) and BUS COUPLER(IWO) should be off( ECG refer to east cost grid)


2. we should identified the damage (operation system and onn all blackstart)


3. record listing alarm and trip relay(control room and switchgear room)


4. reset all alarm and relay except got problem


5. the things that we should do in control room and switchgear room

• turn "off" all feeder in 11kv and 33kv


• 11kv IPP(independent power producers) BACKFEED "off"


• 11kv left and right bus coupler and bus section shoul be on


• all breaker diesel engine(DG) set "off" except gas turbine 1 and 2 (GT1 & GT2)- coz own breaker


• 11kv/33kv inter bus terminal(IBT1 & IBT 2) "ON" as remote position


• 33 kv link 1&2 "onn"


• 33kv/11kv IBT 1&2 "ON"


• station auxiliaries 1,2,3,4 "off" until get supply


• make sure they synchronize before restore supply back to power station

SECOND WEEK, 1ST DAY

well2,,, i'm wearing nice tudung this morning coz technical audit will visited us..
so our company a little bit busy, coz those rat love to smell a slackness from us.heheh

this morning my task to understand the user manual brand ratamas.he told me to figure out how to set back the reading digital to zero. wat a headache!! my eyes become iritating again..wawawa. we need to set up this because got exponential in that reading, we dun wanna this situation happen. the function of this things is it can read how many oil in litter that being used by gas turbine 2

so we will work it on saturday, because the turbine must be shut down.

4th and 5th day

4th day

a lot of safety and prevention need to be considered in here. As we know prevention is better than cure, so even we think that's small matter it's become problem to the employers when its bring accident.

week our company will be visited by "juruaudit"., they job are to make sure all the safety in the distribution site follow the rules and regulation that are specify by them. so my SIR order us to make sure all the things that comment by them b4 this are done by us .

about 10.30 am, we have visited by speacialist from Sandakan, the purpose he came to set up the relay in 33kv room. actually there have a faulty over there.

at the afternoon, i follow matsarizal to GT2 control room, i want to check up wat specific push button i need to order, i'm not sure about the current ratings, so i go down to check up the voltage, then i found it's 3 phase so it' 415 v. nad then i calculate the current, it's rating below 15 ohm, so i give him suggestion to take

LED Elements – front mounted
RED AND GREEN

85 – 264 V AC,
50/60 Hz
5 – 15 mA

5th day

we do the houskeeping and fixed the lamp at 11kv room. i went to oil pump station and do some interview, he said that they will pump the oil from the lorry about 14 times everyday, and it's around 100, 000 littres, wow!!!! but it's depand by the engines.

when clean up the room in 11 and 33kv room, we need to oen the big door so that we got fresh air, otherwise we will be fainted inside there.