Vodafone Rajan Kumar

POWER TROUBLE SHOOTING

GENERAL FAULT DETECTION & ACTION

Vodafone Rajan Kumar

Vodafone Rajan Kumar

Sl no Problem Symptom Remediescheck battery voltage,it must be above 12 v.

check battery voltage,it must be above 12 v.check fuel level it must not be in reserve ie above

30 lt.check air at fuel pump,there must be continuous

flow of fuel.Check emergency stop button and stop solenoid wheather they are in normal ie in open condition

Informed to Infra Electrical teamDG giving low output

voltageCheck DG RPM. It must be 1500rpm

Check AVR working condition

Check DC voltage given to alternator for excitation

Informed to Infra Electrical teamCheck fuel level

Check lube oil availabilityCheck cooling system ie water or air cooling

Informed to Infra Electrical teamCheck air filter status wheather it is chocked

Check lube oil availability ,it must be sufficint as per dip gauge meter.

Informed to Infra Electrical teamRemark:Plz be sure that befor starting the DG,DG body & neutral must be grounded

3DG running but not giving

proper supply DG giving no or 40/50 v ouput

4 Dg not running properly

Dg getting stopped after some time or speed

hunting

Dg giving white smoke/black smoke

DG Troubleshooting

1 Dg fails to start Dg not at all startingcheck battery connections to DG body and self.

2Dg taking start but not

runningDG taking starting crank

but not running

Vodafone Rajan Kumar

Sl no Problem Symptoms Remediescheck DG to PIU connectionMust be DG in on condition

PIU Ac Input MCB must be in on condition

PIU 12 v battery must be charged for display

Powe Switch at CPU of piu Must be in on Condition

If PIU battery is discharged, contactor can be made on hold manually to obtain

power output.

3No out put from Out

put MCB Out put not obtained MCB must be in ON position(Upword)

Remark:Plz be sure that befor switch on the PIU/PMU,PIU/PMU body must be grounded

PIU/PMU Troubleshooting

1Output is not

obtainedAC power is not

obtained at piu input

2Ac power is not obtained at load

distribution panel

Dg contactor not holding

Vodafone Rajan Kumar

Sl no Problem Symptom Remedies

Check power connection from PIU to SMPS

There must be AC supply at MCB output at SMPS end

Make sure Ac power MCB at PIU and SMPS must be in ON condition

Rectifier MCB must be in on condition

VMR setting statusCheck VMR under and over voltage

setting, it must be in beetween 210v-240v

AC contactor must be in free moving condition

There must be AC supply(A1,A2 Port) to make contactor to hold.

Informed to Infra Electrical teamsite not running on

batteryChect SMPS to BATTERY BANK connection

Fuses are faultyHRC fuse must be in normal working

conditionCheck LVD DC connector, at both LVD

there must be a supply of 12 v dc.,IF not obtained LVD can be made to hold bu

making Rectifier on and then running on rectifier for some time.

Informed to Infra Electrical teamshort backup due to battery not getting

charged

Check charging current limit. It must be 10% of rated Battery Bank.(for 600AH it

must be 60 Amp)Check tightening of all shorting strips. It

must be 10nmcheck wheather any cell of battery banf is damaged(Each cell voltage must be above

1.7v)Battery (+)ve terminal must be connected

to (-)ve busbar of SMPS and must be grounded properly

Battery(-)ve terminal must be connected directly to hrc fuses input of SMPSInformed to Infra Electrical team

SMPS/BB Troubleshooting

1Rectifier Module

not working

No Output even when AC power is turned on

AC Contactor status

2DC supply is not

obtained

LVD not holding

3

Battery bank is not giving proper output/not

chargingshort backup due to

improper installation

Remark:Plz be sure that befor switch on the SMPS,SMPS body &+ve bus-bar must be grounded

Vodafone Rajan Kumar

ACME/PACE PIU EXTERNAL ALARMS DETAILS

Microsoft Office Excel 97-2003 Worksheet

Microsoft Office Word 97 - 2003 Document

Vodafone Rajan Kumar

Vodafone Rajan Kumar

Vodafone Rajan Kumar

Vodafone Rajan Kumar

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