when we have to use UPF wattmeter and LPF wattmeter? what is the difference between UPF and LPF wattmeter in terms of construction?

0 Answers  

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what is the Connected Load (kW) or Contract Demand (kVA)of mahindra nasik plant??

0 Answers  

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What is difference between stable and steady?

1 Answers  

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Why transformer called by KVA?

8 Answers   Reliance,

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What is instrumental error?

0 Answers  

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What is the effect on 3phase induction motor if current setting knob of DOL kept at minimum current?

0 Answers  

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What are the protections required in the main lt panel which is connected to the transformer.

1 Answers   Ispat,

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what is the effect come when i changed the alternator exciter field winding DC palority(+ve & -ve)which is coming from AVR.

1 Answers   Wartsila,

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Why Nutral CT rating for Earth Fault Protection of Transformer neutral shall be 20% of Full load Current of Transformer

2 Answers  

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Why is remote backup preferred to local backup?

0 Answers  

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A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?

0 Answers   L&T,

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What is the need of generator relay panel

0 Answers   Newell,

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