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During Starter Panel Com missing I Found The Main Incomer 40Amp MCB 10KA Trip When Motor Change Star To Delta Motor Rating 20HP BUT When We Use Same MCB To Other Motor It Does Not trip Or What Is Necessaries for Star Delta Starter MCB SFU MPCB OR MCCB And What are The Breaking Capacity of MCCB in the Motor above 15HP
1930at high temperature conductivity increases for conductor what will happen for long transmission when temperature is high?
1 4325I have connected 04nos. earthings to a transformer through 04nos. earthing pits seperately. 02nos. earthings are connected to T/F body, and 02nos. earthings are connected to T/F neutral.T/F capacity is 2000KVA, 11KV/415V. But after completing of 02 years successful operation ,we are facing following problems- 1. CT/PT occured blast one time 2. HT cable box occured blast two times 3. One body earthing strip and one neutral earthing strip of transformer are overlapping at some places. Whenever these two strips are pressed at overlapped points, they made spark. What is the reason of spark? Please explain the reason & rectification of above problems
5 10368when we r using single phase load and we have power cable of 3.5core with .5 of neutral and neutral is suppose to the returen path of the phase how much current will flow in the neutral.reply.
2 5136why do we measure VIBRATION in -24vdc and why we adjust gap voltage -9vdc to 10-vdc? i am trying to get this information since 5 years, yet i haven't get reliable answer, i hope i can get from you.
1892What should be the voltage between Neutral and Ground in secondary side of the step down transformer (230 V to 110 V) with no load condition?
2101Can you use step up generator transformer of voltage ratio 16.5kv/420kv in place of step up generator transformer 15.75kv / 420 kv
1 3705What is power factor ?What are the benefits of improved power factor & how. Please explain with examples.?
ABB,
5 13159Post New Electrical Engineering Questions
What will happend if given Vfd out put to step up transformer
what is the Transformer Impedence?How can calculate?
placing earthing pit in pathway is correct or wrong??. placing earthing wireGI1/18 inside walls is correct or wrong?. explain!!!
How to select the cable and voltage drop in circuit?
is that any software calculator to calculate the size of cable
A logic circuit that provides a HIGH output if one input or the other input, but not both, is HIGH, is a(n)?
Explain what cmos is and its benefits?
How the annunciator works ? How to do its wiring
Explain Circuit Breaker Trip Characteristics in detail.
is IS says that neutral should be brought to switch box. and this one is a recomended practice
In a single how much maximum current and watts using
we use capister for power factor. when we use capaciter in dg circuit than defect dg. can we use capaciter bank for dg circuit
we have a lot of model of rectifier but thyristor rectifier is the most rectifier that use in power system. Do you know why this rectifier is used?
How to calculate VA rating for CT or PT or Control Transformer?
Difference of induction motor & servo motor ??
