explain why the armature voltage changes when the field rheostat is varied in self excited DC generator

2 Answers  

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Which type of air compressor is used now a days in the market. Keeping in mind of energy efficiency and maintenance points. Relevant documents may also be sent on mentioned email ids.

0 Answers   DAE,

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What should be the earth pit resistance value?

7 Answers   BARC,

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In chillers & freezers which gas will be use?

3 Answers  

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1.25 kg of hydrogen are burnt with stiochiometric air, the mass of air in kg required is

0 Answers   Caterpillar,

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if an insulated power and control cables of a running gas diesel gensets laid direct in an open trench i.e, trench bed is not rcc of a power house in which rain water, spillage water alwas exists and all power control cables remains submerged even when gas gensets of 480 kw each runningin on load. These power &control cables runs from power house to switchgear room through these trenches in which water remains most of the time. pl explain its merit & de-merit

0 Answers  

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What will be the effect if I use inverter as UPS mood?

0 Answers  

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We have energy meter of ct ratio 200/5amp and installed cut having ct ratio 100/5 amp what is final MF?

2 Answers  

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Why transformer use to generator neutral earthing purpose ?

1 Answers  

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Explain the operation of damper winding

2 Answers  

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How to measure 20 hp motor resitance

1 Answers  

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What is the name of process In VFD frequency are increase then voltage increase & frequency decrease then voltage decrease?

0 Answers  

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