why field rhoestat is kept in minimum position while armature rheostat at maximun position?

3 Answers  

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can i have the methods of speed controls for 3 phase AC MOTORS.

7 Answers  

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I have an enquiry of develop solar power plant, 0.69/11kV, 1500kV/750/750kVA, Dy11y11 Transformer. I want to know what does 1500kV/750/750kVA means? Sorry if this is a noob question.

2 Answers  

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How to resolve if Diesel generator stop while running ?

0 Answers   Toyota,

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whats is MARX CIRCUIT?

1 Answers  

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write circuit diagram for a motor rotate in forward direction once it started and when pressed the same button it should rotate in anticlockwise.

0 Answers  

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dear all, How do i increase UPS (1000VA)backup time ? i have connected 2 12v wold you please 120 aH battery externally. ups charge the lead acid battery only 12.7 volt. backup time only 10.00 minuts and gose off. can any one of you help me?

1 Answers   Technomax, ups,

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how calculate external illumintion in a compound area. for e.g. there is one open park having 600m2 area and i have to put 40w flouresent tube fitting with pole. how shall i calculate the numbers of fitting.

1 Answers  

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How the power factor is more in high speed machines

1 Answers  

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how system fault level is calculated?

1 Answers   HCL,

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What is meant by (2 x 185) AYFY cable

3 Answers   ONGC,

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How does the phase sequence controller works, how it identifies the phases? confirm working principle

0 Answers  

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