in a 740 kw dc seperately excited motor field voltage is constant about 17.4 volts and armature voltage is500 volts dc. how it is possible to have two different voltages from single transformer of output voltage 500 volts? if any difficulty in question contact ajitsingh.kadian@gmail.com

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How to calculate load requirement of a 50 flat apartment with 5 kw each unit,sizing of cable,transformer

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2 v/500amp/hr to 1.80vpc at 20 degree celsious 2v/5ooamp/hr to 1.75 vpc at 77degree farren .this is the capacity of a battery .what is the meaning of this . can i get a detailed explenation

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different between circuit breaker & switchgear & relays

6 Answers   EFS,

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What are the advantages of instrument transformer?

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A transformer is used to light a 24volts,70watts lamp from a 240a.c main.The current in the main cable is 0.35A. Calculate, (1) The efficiency of the transformer. (2) the current in the lamp.

1 Answers  

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what is the function of anti-pumping in circuit breaker?

20 Answers   Aditya Birla, INEL, NCC,

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i want to know about for what reason we are using star delta starter? how it works? what are the advantages?

4 Answers  

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what is the purpose of slope in the differential relay?why we are using two slope?but in busbar differential we are using only one slope.why?

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What are hrc fuses and where it is used?

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what is use of stater and choke in tube light.?

2 Answers   Aditya Birla,

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why frequency should be constant?

2 Answers  

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