Answer Posted / piyush sharma

tha transformer work on mutual induction and key fector is frequency and in dc supply no frequency so primary winding work as heater and after sometime its burn

As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.

1805

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Safety of dry type transformer

1900

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Where can I get Iidian straderd specifications for electrical items or works in web? please help me.

1953

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if we give 60 hz single phase supply to the transformer used in europe , than what will happen

1887

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if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer

1842

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whats the existence of reactive power and when it arises?

2077

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state basic meaning of 'INDUSTIAL AUTOMATION'?

1853

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What do you mean by turns ratio of instrument transformer?

1031

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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

2243

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What is meant by system?

1013

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what could be the RMS value and average value of a 4 phase sine wave?

1817

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What is Surge Capacitor? Why it is use in Generator Circuit Breaker?

5072

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The knee point of a current transformer is normally unique and known.So why in the nameplate of a CT they put the minimum value like this Vk> 400v.

1325

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What is pole of the system?

1086

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List the characteristics of filter?

989

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