Date post: | 09-Jun-2015 |
Category: |
Engineering |
Upload: | idc-technologies |
View: | 257 times |
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Troubleshooting of Electrical Equipmentand Control Circuits
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Effects of Electrical Failures • Loss of revenue due to downtime• Cost of labour for trouble shooting, repairing,
restarting etc• Cost of damaged equipment and material including
repairs, replacements, scrapped material• Cost incurred due to injuries suffered by personnel
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Reasons for Genesis of Problems
• Design deficiencies
• Quality of installed equipment
• Installation deficiencies
• Operation deficiencies
• Quality of maintenance carried out on the equipment
• Inherent ageing and deterioration of equipment
• External causes like hostile environment, malfunction of protection devices etc.
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Problem categories - Electrical
Electrical problems can arise either in the electrical circuit or in the equipment and components connected in the electrical circuit and can be categorized as
• Open circuits and short circuits
• Active and passive faults
• Incipient and solid faults
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Problem categories - Mechanical
• Mechanical problems - are on account of mechanical causes like bearing defects, breakages, jamming of moving parts, lubrication problems etc.
• Mechanical problems can lead to electrical problems. A defective motor bearing can cause the rotor to foul with the stator of the motor causing an electrical flashover.
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DO YOU WANT TO KNOW MORE?
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