In a power system we know that if the generated power is less than the load then the frequency of the system is decreases.So does this mean that total required load is delivered at alower frequency?

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how to converate kva to kw ?

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Which starter can be used for 3 phase verriable speed (2 stator wdg) induction motor ?

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What is the unit of inertia constant of rotating machines? Which has more inertia constant between turboalternator and hydroaltermanor and why?

2 Answers  

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How to calculate the no of Ceiling fan (1200mm sweep) per unit area?

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how to calculate the tarriff for an industry whose kva demand is 10 mva

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in 132 kv substation ligtning arrestor(120 kv) connected to line. but line voltage comes to 132 kv, it operate or not???

4 Answers   Divis Laboratories,

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I have 2500KVA transformer delta/star,13.8KV/380V provided with LV 4000A breaker. Already I have 2300KW motor feeder with a full load 90%. Is it possible to connect another 1600A from that breaker? If so how the calculation is done?

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Does the direction of rotation of d.c. Shunt motor would get reversed if the armature current and field current both are reversed?

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What is the two pole structure?

0 Answers   Foxconn,

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I have draw the 350A DC current, so what is the size of cable i can use? Give me the answer with formula

1 Answers  

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In DC while we mention the voltage we are using -48V but in case of AC we mention only 230V not -230V, why we using -48V not 48V

2 Answers  

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