Answer Posted / leo thomas

in electronic regulators diac or triac is used.These
devices conducts only some firing angle that means we are
utilizing only a part of the sine wave,not completely.
In rheostatic control total sine wave using ,here energy
wasting

i am gng to visa interview this july i have 4 backlogs gre 1010,toefl 75,pls give me the tips pls pls

2098

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Is it possible to download the Siemens Selection Chart(TYPE 2 coordination) for 1) fuseless selection 2)Fuse selection

8182

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How can two 3 phase transformers of same KVA and Voltage be connected in parallel?

1807

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What are the causes for the failures of sandwich type (Al) busducts?

1803

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what is acceptable leakage current for 33kv cable while doing high voltage test for cable? how to calaulate the leakage current for 33kv or any rated cable?

3981

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can any one provide me a connection wiring diagram for a DG set control panel along with BOM?

2152

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which VFD is better ( LT or HT)

2002

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Explain different types of d.c motors? Give their applications

1066

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A 50Hz,4-pole,3-phase,star-connected synchronous motor has a synchronous reactance of 12ohmsper phase and negligible armature resistances.the excitation is such as to give an open-circuit voltage of 13.2kilovolt.the motor is connected to 115kilovolt, 50hertz supplying. what maximum load can be the motor torque,line current and power factor?

2358

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what should be correct gas pressures to be a 1.5 ac unite

1431

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How does an oscillator differ from an amplifier?

1103

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What is the function of auadag in a cro?

1068

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If I want to replace a 26KW Slip ring Motor with a Squirrel Cage motor & Drive (for a Hoist Application). How can I approximate the Motor & Drive HP required in new Setup.

2210

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where does 22kv line starts

3036

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What is ferro-resonance in electrical system? Why it occurs and what are measures to prevent it?

2161

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