what condition there autotransformer will fail?

2 Answers  

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Is it any dc fuses availbale in market? can we use one fuse for both AC & DC ?

6 Answers  

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Why sip ring used in ac motor also why its not used in dc motor?

2 Answers   RRB,

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which tap of the transormer you will use in critical condition(worst)?

1 Answers  

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THE 40 MW OF POWER FOR 220 V III PHASE POWER CONNECTION REQUIRES HOW MANY KVA POWEER REQUIREMENTS

7 Answers   Chartered Accountant,

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In a panel 2500A ACB is the incoming breaker then what is the size of the bus bar?

1 Answers  

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what is the generation action and motoring action?

3 Answers  

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the total iron closs in a transformer core at normal flux density was measured at 25hz and 5ohz and was found to be 250w and 800w respectively.the hysteresis loss at 50hz would be................?????

1 Answers   ABB,

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A 1F capacitor is charged to 100V initially. A 1H inductor is connected accros the capacitor througha a switch. The current in the circiut when the switch is closed is____

0 Answers   Ecil, L&T,

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Hi All, I am working as a Technical executive in a MNC company and we have 1500KVA & 1250KVA T/F in our site, can you help me that how many maintenance tests can be conducted and what are the procedures included for the tests can you share yours answers and also give any web address to get more information on this

5 Answers   Hyundai,

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A transformer has negative voltage regulation when its load PF is A zero B unity C lagging D leading

1 Answers  

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a 230v transformer with step down ratio 19:1.it has 2000turns on primary and rated 25va calculate max primary current no of secondary turns volts/turn

0 Answers  

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