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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
1838at high temperature conductivity increases for conductor what will happen for long transmission when temperature is high?
1 4188I 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 10008when 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 4854why 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.
1810What 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?
1976Can you use step up generator transformer of voltage ratio 16.5kv/420kv in place of step up generator transformer 15.75kv / 420 kv
1 3568What is power factor ?What are the benefits of improved power factor & how. Please explain with examples.?
ABB,
5 12777Post New Electrical Engineering Questions
Why dry type cast resin transformers tap link blast in HV side while power shut down times on load?
describe the Operation of induction generators from bus bars
How many kw will suply from one db
what r PID controllers?why they r used?what is there purpose?plz Explain in detail
What is slip in an induction motor?
Is it possible to measure the voltage of a battery from a single terminal?
why star point of HT motor not earthed?
What is the diffrence (Technical & Construction ) between CBCT & Normal CT?
HAI SENT HPCL APTITUDE QUESTION PAPER, MY EMAIL ID IS angus_eee04@rediffmail.com,angus_eee04@yahoo.com
I want formula to calculate cable size as per load given in length & amp. I searched many sites but didn't right answer. Please reply me asap.
What is the physical significance of phase.. i.e. what is exactly the meaning in layman's language.. 1 phase, 3 phase etc ???
description about dry type transformers
HOW TO CALCULATE S/C,O/C,E/F OF ACB.
dear sir, i completed diploma in electrical in 2005, how i can get electrical supervisor liance in mumbai
How relay works, reverse relay, master relay, os relay, earth fault relay and what is its setting point
