what happen if the battery is charged by more than one source ,for ex: connecting data cable to laptop & charger pin to source supply ? 

2 Answers  

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Please brief working principle & construction of permanent magnet AC Servo motor

0 Answers   DRJ ARDE,

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armature winding of dc machine produce alternating emf then it convert in to dc by using commutator.But only we consider armature resistance why don't we consider inductive reactane effect?

0 Answers   APTransco,

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What is use of reactor..how it is help ful in electrical system .....brief explain

1 Answers  

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I've heard that most of the substations are rated in multiples of 1.11 because of form factor.What is form factor?

3 Answers  

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MY QUATION IS ABT THE MAIN POWER TRANSFORMER IN STEEL PLANT , I WISH TO KNOW THAT WHY TRANSFORMER PROTECTION NOT TRIP AS CABLES ON THE SECONDAY SIDE IS WATER COOLED. TRANFORMER DETAIL NORMAL KVA--150 KVA PRIMARY VOLTAGE --34.5 KV SEC.NO-LOAD VOLTAGE---1.290-908-690V ( WITH PRIMARY DELTA CONNECTED) CONNECTION--D/d (EXTERNAL CLOSED) CONSTANT RATEING FROM--1.290-908V CONSTANT CURRENT FROM--908-690 VECTOR GROUP--D III

1 Answers  

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cost of operation of which plant is least?

6 Answers  

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why hv winding is not placed near to transformer core

4 Answers  

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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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what is the reason for connecting hvdc monopolar line with negative conductors

0 Answers  

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What is the purpose of taking Capacitance and Tan Delta Test in Transformer bushing?

2 Answers  

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why the emf of a cell more than the terminal voltage when the cell is delivering current?

4 Answers  

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