why Ac current is alternating in nature?(or)why alternating current changes its direction?

3 Answers   APGenco,

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Why and which type of tertiary winding is used in most of the power transformer?

2 Answers  

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what is inverter and converter

0 Answers   Hindustan Syringes and Medical Devices,

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Why diesel tank kept in 990 ltrs

1 Answers   Reliance,

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difference between the earthing,grounding and neutral

1 Answers   DLF, L&T,

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What are dcs and plc?

0 Answers  

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why battery dc voltage become Half when we check with respect to ground for example 120volts + and - terminals and when we check + terminal with Earth thats 60volts why 60volts we can not ground the battery.

6 Answers   GE,

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what is the difference between elcb and rccb ?

0 Answers   Trident,

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We have 2 Nos. Transformer with the capacity of 2000KVA and 1250 KVA and currently using only one 2000KVA T/R during operational hours while non- operational hous 1250 KVA T/R also used to reduce T & D losses. Similarly, 2 capacitor bank of 500KVAR and 300 KVAR also installed to balance reactive power. Now problem is around 1000 KW load PF is not maintaning 0.99 as 350 KVAR capacitor is in healty condtion. Now the PF is maintain 0.95 to 0.96.

2 Answers  

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Earth leakage relay basic knowledge principle

0 Answers   Radiant,

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what is the formula of starting current of 3phase and 1 phase motor???

0 Answers  

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reason behind why the reverse power relay of incoming machine was not acted even when no load was shifted on incoming machine after synchronising the machines ?

2 Answers  

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