Which UPS (inverter) is better and why ? 12 V inverter and 24 V (two 12 V batteries in series) inverter which is better ......... which has the longer backup which has the greater charging time which has the greater discharging time thank you

2 Answers  

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What will happen to the speed of synchronous machine subjected beyond the pull out torque? Are the behavior shown by rotor remains same for both the alternator and motor?

1 Answers  

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why DC motor body is plain cover but AC motor is different like finse?

2 Answers  

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hi... Can anybody give me description of type-2 coordination, IP protection, NEMA standards ? Thanks..

2 Answers   KSEB,

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what is the difference between online & offline caliberation of KWH meters. Can Digital meters be caliberated

0 Answers  

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Why the Transformer Nuetral is grounded?

10 Answers   Infosys, Khartoum Refinery,

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How the annunciator works ? How to do its wiring

0 Answers   Ford, MSEB,

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What are the types of windings according to the construction?

0 Answers  

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how do you calculate IKW(consumption per TR) in HVAC?

27 Answers   Aircon, CBRE, Cipla, Clivet, Cushman Wakefield, JLL, Sodexo, Voltas, Wipro,

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whats happen if we disconnect the NGR of alternator in running condition?. Generally we observed that transformer netrul is directly grounded but alternator connected with NGR, then ground?

1 Answers  

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Leakage current,un balance current which relay using for high voltage transmission?

0 Answers   Banking,

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Calculate the demand in KVA for a three phase 440V power source drawing 1100A current

5 Answers  

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