Electrical Eng interview questions, quiz in Hindi part 9
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- เผยแพร่เมื่อ 9 ก.ย. 2024
- Electrical eng interview questions and answer, current in the earth in Hindi video part 9 on DC power transmission. Question 1- You might have heard about 200 KV. Have you heard of minus 200 KV? Question 2 - 1000 amps current in earth 100 kilometres. Where does it happen? Question -3 Grounding/ earthing is done 20 km away from the place of the equipment. Where does it happen? It happens in HVDC, DC transmission system. General question on electrical engineering. Technical Hard quiz, are you genius? then try your intelligence and solve this challenge of tech quiz. HVDC earthing in Hindi. Educational video on electricity and electrical engineering in Hindi 289 by G K Agrawal (Industrial product designer)
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GK Agrawal electrical on DC transmission HVDC in Hindi. Technical paheli in Hindi. DC transmission Hindi. Electrical engineering questions in Hindi. Current in earth Hindi. #gkagrawal #ElectEnggByDesigner #electricalEngineering #ElectricalQuestion #HVDC #DC
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Hello Sir..
To JB Earth k through circuit complete hota H or JB Earth se high voltage and current flow hota H TB agr koi person or equipment uske bich AA jaye..
Jese Kahi jimn khodni Ho....
To usko...fir. Electric shock Lgegaa yaa nahi..
Plz reply.my questions...
I have confused
1- Very good question. Jaha earth mey high current enter kartee hai, Vah protected area remote jagah hota hai. Uskey bad current kafee area mey spread ho jathee hai. So current nahee lagega jameen khodney per,
dadaji maja aa jata hai aapke anubhawi gyan se......sukriya
Thank you sir.
Bahut acha laga video dhekhkar
Good information
thanku sir.
अग्रवाल सर जी मैं आपसे अनुरोध करना चाहता हूँ की कृपया आप हम स्टूडेंट्स के भले के लिए सभी चेप्टर को करवा दीजिये
जैसे ट्रांसफार्मर, मोटर ,और जनरेटर इन सभी के लिए वीडियो प्रदान कीजिये ताकि हम जो पैसो के आभाव या सही शिक्षण न मिल पाने के कारण नही सीख पाए है आपके द्वारा सीखें
Sir kya dc line ko very long distance pe transmit n kr sakte hain?????????
Thanks sir
sir please norton theorems and mesh analysis ka video explain kijiye
sir is topics par AUR video banaiye plz
Sir motor ac or dc se sammbandhit Vidio banaye
Dc motor or bettery ki query
earth ke andre
सर जी, एक अच्छी अर्थिंग किस प्रकार की मिट्टी में बनती है और एक अच्छा अर्थिंग बनाने के लिए हमे क्या क्या जरूरी है, उसे सही तरीके से जनरली टेस्ट कैसे करे और उसकी लाइफ कितनी हो सकती है कृपया हमें एक वीडियो मैं बताये।आप से बेहतर हमें कोन बता सकता है सर,।धन्यवाद
अगर देखा जाए तो एडिशन और टेस्ला का वार ऑफ करंट यहां पर कोई काम का नही टेस्ला ने कहा था dc लाइन को दूर तक नही भेजा जा सकता है । पर ऐसा क्यों hvdc का इस्तेमाल क्यों करते है जबकि ac लाइन से भी वही फायदा होता है।। मैं इलेक्ट्रिकल फील्ड से नही हु पर जानने की जिज्ञासा है कि ऐसा क्यों👍
devendra kumar
It is not only in India it is everywhere that the mains power supply is AC or alternating current.
The reasons
1. Starting from the basics : a DC current is normally available from a source like Battery. We can not have large enough batteries to supply all our needs.
2. We need to continuously generate electricity using some kind of rotating machinery to do that. Inherently a rotating generator generates AC because as a coil rotates in a magnetic field. A DC generator requires brushes to convert that AC to DC within the machine. Even this is not perfect.
3. After we generate the electricity we need to transmit it over long distances. That transmission is more economical at very high voltages. So we need to be able to change the voltage easily from low to medium to high and vice versa. That is very easily possible only in an AC.
4. Come to the last stage i.e. usage. Though most of the consumers use electricity for lighting in which case AC or DC does not make a difference (that also depends based on the lighting device) the major demand of electricity is for mechanical power. That conversion (electrical to mechanical) is more easily and economically done by a AC motor for similar reasons as an AC generator.
All this put together AC was favoured and over a period devices and equipment very designed. manufactured, optimised and installed for AC so it became prevalent.
sir ji tusi grate ho aapka teaching language mujhe bahut achha laga thanks sir ji
Sir thank you aap bahut achi video banate hai 😊
varun lamba
Basic electric circut amp KW watt.voltage what's tell me
Sir neutral full tight hai db main.earth kaha lagana hai neutral main.
मुझे याद था जैसे की आपने बताया था
लेकिन आज भूल गया😊
कुछ समय पहले टीवी में एक टीचर का इंटरव्यू आया था । उसने भी वही उत्तर दिया था जो कि आपने ऊपर लिखा है ।
नमस्कार सर ❤
Comments welcome
G K Agrawal bhut hi mehatbpuran jankariya milti h sir aapse Kya mujhe aapka what's app num mill sakta hai
Sir, 2nd paheli me jab HVDC line me earth se current bahati hai tab kisi ko shock kyon nahi lagata?
क्योंकि सिर्फ पॉजिटिव से हीं करंट फ्लो हो रही है इसलिए,,, 1000 एम्पियर करंट होने के बावजूद क्यों इलेक्ट्रिक शॉक का खतरा नहीं है। मैं दूसरी पहेली अच्छे से समझ नहीं पाया।।
Kyo kee body sey current nahee bah rahee hai. Sock tab lagega jab body sey current bahegee.
इतना दूर तक ट्रांस्मिसन लाइन बिछा होता है, यदि निगेटिव में से करंट बहना बंद हो जाए तो शॉक लगेगा या नहीं। सोर्स से एन्ड तक शॉक का डर रहेगा।
Sir please tell me best led tv repairing traning center in near west bengal?
I do not know
Sir please explain star delta starter working
There are so many videos on star delta starter.
Thundering Main Kitna voltage hoti hai sir aur current Ve
Sir thode fast video banao aapka video kuch jyada hi slow h
Sir agar neon tester phase busbar ke sath neutral busbar main bhi jalta hai.sir kiya problem ho sakti hai.agar load lagate hai to load theek tarike se kam karta hai.
Neutral ko earth ni laga ho ga ya neutral looz ho
जहाँ पर कोई उलटा घुमावदार
Sir star connection k neutral ko earth karne k baad me bhe neutral me volt kaha se aata h please reply
सर इनवर्टर एसी के कंप्रेसर में बीएलडीसी मोटर लगी होती है इसका सप्लाई चेक करने पर एसी और डीसी दोनों प्रकार के वोल्टेज मिलते हैं कृपया बताएं ऐसा क्यों होता है.
Sir hum hvdc ki traha hum hvac system me Earth as a conductor kya use kr sakte hai ager nahi to q sir?
Sir in last part how current is flowing even when there is no wire connected in side earth
Earth itself act as a conductor for electric current.
sir mujhhe 24volt 2amp RC driver banana h please sir help me
Sir ji HVDC TRANSMISSION line ka use hun india me kyun n krte hain ac power ka hi kyun krte hain mai Diploma kr rha hun maine padha h k dc power transmission me loss bahut kam hota hai ac k muqable fir hum kyun n HVDC TRANSMISSION LINES use krte hain???? Sir aap ka What's app no mil jaye ga Electrical field se related question puchhne k liye plzz sir give me yr WhatsApp no...
Faiz Ahmad It is not only in India it is everywhere that the mains power supply is AC or alternating current.
The reasons
1. Starting from the basics : a DC current is normally available from a source like Battery. We can not have large enough batteries to supply all our needs.
2. We need to continuously generate electricity using some kind of rotating machinery to do that. Inherently a rotating generator generates AC because as a coil rotates in a magnetic field. A DC generator requires brushes to convert that AC to DC within the machine. Even this is not perfect.
3. After we generate the electricity we need to transmit it over long distances. That transmission is more economical at very high voltages. So we need to be able to change the voltage easily from low to medium to high and vice versa. That is very easily possible only in an AC.
4. Come to the last stage i.e. usage. Though most of the consumers use electricity for lighting in which case AC or DC does not make a difference (that also depends based on the lighting device) the major demand of electricity is for mechanical power. That conversion (electrical to mechanical) is more easily and economically done by a AC motor for similar reasons as an AC generator.
All this put together AC was favoured and over a period devices and equipment very designed. manufactured, optimised and installed for AC so it became prevalent.
ITI ELECTRICIAN CLASSROOM sir aap ki baat thik hai lakin jab itna losses hai HVDC transmission me to fir humen padhaya kyun jata hai HVDC transmission line k bare me aur sir china me to HVDC TRANSMISSION LINE hai bhi to fir china kyun use kr rha hai HVDC LINE??????
Faiz Ahmad
Yes, main samjh sakata hun apake savalon ko. Kisi bhi chij ke do pahalu hote hai, maine HVDC ke disadvantage ke bare me bata ki hai. Dusare najariye se dekhe to HVDC se hame kam loss hota hai,, lekin HVDC line ke lie bhi hame HVAC ka sahara lena padata hai,,.. summary,,, HVDC depends on HVAC,, we simply convert it....AC to DC
DC is used in extra high (EHV) and ultra high (UHV) power transmission (500,000V and up) for the following reasons:
It is asynchronous. That is, becuase DC has no frequency, it can be used to connect two differnent systems without worrying about having to synchronize the systems.
The DC connection is a open circuit to AC systems. This is important when it comes to system stability-having that isolation helps to separate two separate systems in the event of a electrical fault event, such as lightning or equipment failure. The DC circuit limits the fault's path, essentially protecting the unfaulted part of the system it is connected to.
For long distances, it is more economical. DC transmission towers take up less space which means less land can be used for right of way. Since DC only needs two poles at a maximum (sometimes one pole is used, and the ground is used as a return), less wire is needed. Towers are also more economical since they dont' have to carry three separate wires.
Less Losses. With a DC system, there are less losses-there is no reactive component to a DC circuit, so AC system related losses like capacitive, inductive and skin effect are nonexistant. Again becasue there is no AC, losses and other issues associated with electrical coupling/induced currents are not an issue. There are only resistive losses as opposed to AC, which has reactive and resistive losses.
Easy to transfer large blocks of power. With DC, direction of power can be switched easier. This makes DC indispensable for areas where summer loadings and winter loadings are opposite-for example a state that is cooler in winter in one area and warmer in summer in another area. The DC circuit could be used to export power to the colder region in the winter from the warmer region, and from the cooler region to the warmer region in summer. Inverters are used to change the direction of power instantanously, as well as the amount of power transmitted.
The disadvantages are:
Cost. DC installations are very expensive, which is one reason why they don't really get used below transmission voltage level. A DC substation requires more equipment than an AC substation would require, partially becuase the conversion process requires equipment that will eliminate harmonics that are created. This is very inefficient for subtransmission and tranmission voltages below 500kV (500,000V).
AC power is easier to step up and down. There is no such thing as a DC transformer, since transfomers require a magnetic field to work. DC current, since there is no frequency, cannot produce the induced current in the secondary coil of the transformer. Transformation is an essential part of the AC power system, so this inability is a very significant negative.
Because of the disadvantages, DC transmission in the US is still not common it is very limited in scope, and is not generally used for voltages below 500kV. But in Europe it is decidedly more common. The asychonous nature, as well as the particular areas, make DC connections a more suitable choice there than here in the US.
Your confusion will clear after reading above ...
namaskar sir ji
sir aapka help chahiye mujhe mai ghar ka warning kiya hu us me ek room me switch band karne pe thora saa balab jalta rahta hai mai us room ka har ek neutral alag karnese band hojata hai aur jab sabhi neutral ko ek jagah pe joint kardete hai to fir se woisaahi balab jalna suru hojata hai please help kijiye sir
sir आप का institute कहाँ है
Mai retired senior citizen hoo.
Sir aap kon se department me the
Design, meree channel per "about " section per aap merey barey mey jankstee prapt saktey hain.
help kijiye sir jaldi
hamne earth bhi check kiya sir lekin earth nahi hai us balab me to please sir help kijiye
Maine iti kiya hi lekin muje hvdc ke bare me nhi padhya gya ye kon se standard ya diploma degree krne pr pdhne ko milega
Aapko sikhne ki echa hai tho Internet sey sikh saktey hai.
Sir apka phone number bata do