what is main purpose of ignator in halogen lamps.how to identify the failer of ignator in circuit

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The 3 phase Delta connection RB=440V, BY=350V,.......* is Line to Line voltage RY= ? And Formula....?

0 Answers  

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In IDMT RELAY the term minimum (M) indicates what?

7 Answers  

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If we give 2334 A, 540V on Primary side of 1.125 MVA step up transformer, then what will be the Secondary Current, If Secondary Voltage=11 KV?

3 Answers   L&T,

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A 230V dc shunt wound motor has an armature resistance of 0,15Ω.When operating on no load at 650 rev/min the armature current is 6A . The motor takes a full load current of 85A. Calculate the full load speed if the field flux is (i) maintained constant (ii)reduced by 0,03

0 Answers  

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If a fan get trip and run in reverse direction due to system flow. Now in this condition during starting how can a VFD bring this negative speed to zero and later run in forward direction?

2 Answers   Aditya Birla, Siemens,

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what instruments used for measuring of inductance and capacitance.

2 Answers  

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what is the working principle of ceiling fan and table fan?

10 Answers   ABC, Tata Steel Limited,

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why and how fault current flows through ground?

1 Answers  

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how to find impedance , mutual indatnce in transmission lines

0 Answers   NTPC,

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defination of generator

7 Answers  

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please write motor, transformer, Generator setting, fault level calculation of Tr.etc

0 Answers  

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