2- What are the percentages between excitation currents in phase (R, S and T) in ∆ and Ỵ connections in excitation Current test in transformers?

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What will happen if the d.c. Machine is operated below rated speed?

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what are balanced and unbalanced loads

1 Answers   GGH,

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i want to know how to determine that a surge arrester work properly in 11kv system. and how to test a 12kv surge arrester

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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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Pls Breifly explain about UPS (Inverter,Reserve,Rectifier,Float voltage,Boost voltage).

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although ckt breakers have taken the place of old fuse. But instead of it , these older ones are still used in the industries and homes ? why .... what are their advantages and disadvantages ? which one is leading and winning the race and competition ?

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Upload data by LSMW via BAPI in SAP system.

1 Answers  

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What type of isolation transformer used in UPS's?? It's Star-Delata Or Delata-Star????Why it is used????

6 Answers   Emerson,

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how much allowable resistance that can be difference in motor all coils?

0 Answers  

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how do you select the ct/pt rating in substation

1 Answers   Apollo, Shreem Electric Ltd, Tata Motors,

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HOW TO CALCULATE GROUND FAULT CURRENT IN 430V 4000AMP AIR CIRCUIT BREAKER?

2 Answers  

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