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Pulse transformer step up the voltage pulse, welding transformer has high leakage inductance, it protects from short circuit current

C.S.R. and where are they use in electrical systems

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What Different of Ht Side VCB & SF6

2 Answers  

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PLease anyone can tell me CTUM-15 specification?

1 Answers   Gilbert Maxwell,

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what is a pulse transformer? how rise time of pulse changes when ever the voltage changes?

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a)In a 3-phase 4-wire circuit, a circuit breaker is selected to protect the circuit whose highest fault level is 6.6 MVA. Determine the required minimum breaking capacity in kA. (Note: Covert 3-phase power in terms of kA to find answer.) b)Using the below, determine the required minimum making capacity in kA as a “peak value”. Rate breaking capacity (Icn) ka: Icn<= 1.5 Factor = 1.41 1.5

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how you will decide the distance between the power transformer and its fencing

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what happen to the voltage and current in all phases when an earth fault occur in a phase in three phase three wire system(delta connected)...

1 Answers  

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the question is about buchloz relay why we called it buchloz relay

7 Answers   HIL,

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WHY WE USE CABLE JUNCTION AFTER BETWEEN TANSMISSION LINE AND TRANSFORMER

1 Answers   L&T,

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IN THE CASE OF AN ELCB, IF THERE IS ANY UNSTABILITY BETWEEN PHASE AND NEUTRAL IT MAY TRIP. BUT MY QUESTION IS WHEN A LOAD IS CONNECTED IN BETWEEN P AND N, THE LOAD CONSUMES SOME POWER AND THERE IS A DIFFERENCE IN NEUTRAL WITH RESPECT TO THE PHASE. THUS ACCORDING TO ME, THE ELCB WILL AUTOMATICALLY OPERATES WHEN EVER THE LOAD CONSUMES-- I KNOW IT IS WRONG. BUT THE SOLUTION IS?????????

1 Answers   KSEB,

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how to select energy meter? have any calculation?

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IF alternator SCR value will be high means what happen in alternator efficency at operating power factor of 0.8

0 Answers  

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