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If Generator fail to start automatically during power failure What are the causes are present?

We have to check sequence of operation. see the selector switch all are in Auto. check the gen Set ACB is not having Trip, check and clear all faults in Generator  control panel, check if their is under voltage fault, check the battery voltage. importantly to check main ACB to Gen ACB Transfer relay time set etc.,

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تم إضافة السؤال من قبل MOHIDEEN ABDUL CADER. , SENIOR PROJECT ENGINEER. ELV , SEMCO AL SHABAA ELECTRICAL AND MECHANICAL LLC
تاريخ النشر: 2017/10/08
ahmed mongy
من قبل ahmed mongy , Maintenance& Facilities manager , Ideal standard international

ATS system not working ( should be send signal to Generator to switch on).

Genrator in manual mode .

the Genrator battery is down .

Generator problrms .

Mohammad Imran Ansari
من قبل Mohammad Imran Ansari , Permit coordinator , Qatar engineering and construction company

Battery

failureLow coolant levels

Low coolant temp alarms

Oil fuel or coolant leaks

Controls not in auto

Air in the fuel system

Ran out of fuel

High fuel level alarm

Breaker trip

Philani Magadlela
من قبل Philani Magadlela , Mechanical Foreman , Pretoria Portland Cement (PPC)- Dwaalboom Factory

Firstly you have to check if the battery is not flat, if it is ok, proceed to check main switch if it is not tripped, then check if the generator is set to automatic operation or manuual. you need to check also the fuel level if it is in empty or not.

Heru Mirdal
من قبل Heru Mirdal , Mechanical Commissioning , Hyundai Engineering & Construction

The cause of the machine fails to start negative is;1. Accu voltage is weak or below normal,2. There is air on the fuel line,3. The circulation of lubricating oil is not smooth.

Michael Callelero
من قبل Michael Callelero , Mechanical Engineer , HT Yadao Construction Management Consultancy Inc

1. faulty wiring from ats to genset.

2. low dc battery

3. switch not in automatic selection

4. contactor relay not energize or energize

5. mcb on trip mode

 

Andrey Yakovenko
من قبل Andrey Yakovenko , Mechanical commissioning engineer , Arctic LNG-2

It necessary to check all faults are clear, check the sequence of operations for start-up.

Joe Ann Lee
من قبل Joe Ann Lee , Maintenance/Electrical Technician

Check the control panel of all breakers are working, check supply voltage,check fuel level.

DEYAA ALHOUTAIMEY
من قبل DEYAA ALHOUTAIMEY , Mechanical Engineer , Blue Gulf Ship Builders L. L. C

short circuit or mechanical problem

Mohammad Suliman
من قبل Mohammad Suliman , Owner , Engineer Establishment for Trade and Maintenance

There are manay causes,

Battery failure

No fuel

mechanical issue

Electronic issue

Muhammad Ihsan Fiaz
من قبل Muhammad Ihsan Fiaz , trainee engineer , kohinoor energy power plant

battery failure, low coolant levels, low coolant temp alam, oil fuel coolant leaks, control is not auto, air in the fuel system

Aditia Hermanu
من قبل Aditia Hermanu , Maintenance Superintendent , Vico Indonesia

If this fail to start happend before ignition usually the problem was on the starter system , where it could be that the starter it self or maybe the motor starter or turbine starter (if se use pneumatic starter) . 

 

If this fail to start happend after ignition the usually the problem is the fuel system . Could be the fuel solenoif valve was jammed, the fuel regulator had problem or meybe the setting of fuel control system.

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