Answer Posted / riyash mohamed

first of all the basic principle of a starter to use in a motor is to limit the starting current,different starters were used depending upon the watts,this star delta is used above 5kw,
when the starter is connected to a motor ,to prevent it from high starting current it will be connected in star connection after certain second it will be switched to delta for running the motor

I have 2 KW electric water heater.I am gonna use it in controlling water temp.so I needed to increase or decrease the heating capacity.is there any electrical-electronic circuit for varying the resistance & so current?

3249

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How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?

2585

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What are the types of excitation system?

2014

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Don't you have similar question banks related to Oral Certification Examination conducted by Mercantile Marine Departments / Directorate of Shipping, Ministry of Shipping for Electro Technical Officer?

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1168

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In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.

2281

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why high speed tripping relay will be used in tripping circuit why not normal relay

1349

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2122

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1067

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specific difference of ICT&Auto Transformer

1871

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What should be the Sandwitch type Al. bus bar capacity for 2 M.W.Gen. set, having continuous full load current- 3463 Amps,ambient temp.- 50 Deg. C., Required temp. raise-20 deg.C., it will run 24 hrs, 365 days on full load, required highly reliable.

2662

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how you taken aotitude test

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What is the necessary condition for stability.

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