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07-22-2019, 11:09 AM

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07-22-2019, 11:18 AM

අපේ ඩිම් වෙන්නෙ හදල ඉවර වුනහමනෙ බං. අතු කඩං වැටුනාම කෙලිංම නැත්තටම නැති වෙනව
ඇවිල්ල හදන්න ගත්තාම ටිකක් වෙලා යනකං ඩිම් හදල ඉවර වුනහම හරි.
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07-22-2019, 11:21 AM

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smile 07-22-2019, 11:26 AM

very good question ... normally 3 phase kiyanne balanced system ekak. pahala tiyena phasor diagram eke wage neutral point eka center eke tie wela tiyenne perfectly balanced system ekaka....normally transformers wala nm neutral point eka ground karala tamai tiyenne ...



eka phase ekak down unama wenne neutral point eka anith phase deka pattata shift wenawa ... gedarata ena voltage eka kiyanne phase ekak saha neutral point eka atara voltage defference eka ... so neutral eka shift unama voltage difference eka adu wenawa ... result is dimming lights ...
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07-22-2019, 11:33 AM

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07-22-2019, 11:41 AM

Quote:
Originally Posted by AEG View Post
very good question ... normally 3 phase kiyanne balanced system ekak. pahala tiyena phasor diagram eke wage neutral point eka center eke tie wela tiyenne perfectly balanced system ekaka....normally transformers wala nm neutral point eka ground karala tamai tiyenne ...



eka phase ekak down unama wenne neutral point eka anith phase deka pattata shift wenawa ... gedarata ena voltage eka kiyanne phase ekak saha neutral point eka atara voltage defference eka ... so neutral eka shift unama voltage difference eka adu wenawa ... result is dimming lights ...

මේක කියෙව්වම මෙහෙම ප්‍රශ්නයක් ආව මචං,


ප්ලග් පොයින්ට් එකක් ගත්තත් Phase එකයි Neutral එකයි දෙකක් තියෙනව නේහ්. සාමාන්‍යයෙන් Phase එක තියෙන්නෙ දකුණු පැත්තෙ නේහ් මචං.


මේ වගේ වෙලාවකට ටෙස්ටර් එකක් තියල වෝල්ටේජ් එක චෙක් කරොත් කරන්ට් එක එන්නෙ නියුට්‍රල් එකෙන්ද(වම් පැත්තෙන්ද)?


තව ප්‍රශ්න වගයක් තියෙනව අහන්නම් මචං.

එල, තෑන්ක්ස්...
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07-22-2019, 09:18 PM

Quote:
Originally Posted by sithija.h View Post
මේක කියෙව්වම මෙහෙම ප්‍රශ්නයක් ආව මචං,


ප්ලග් පොයින්ට් එකක් ගත්තත් Phase එකයි Neutral එකයි දෙකක් තියෙනව නේහ්. සාමාන්‍යයෙන් Phase එක තියෙන්නෙ දකුණු පැත්තෙ නේහ් මචං.


මේ වගේ වෙලාවකට ටෙස්ටර් එකක් තියල වෝල්ටේජ් එක චෙක් කරොත් කරන්ට් එක එන්නෙ නියුට්‍රල් එකෙන්ද(වම් පැත්තෙන්ද)?


තව ප්‍රශ්න වගයක් තියෙනව අහන්නම් මචං.

එල, තෑන්ක්ස්...
phase eka kohomath indicate karanawa .. neutral eketh voltage ekak tiyena nisa samaharawita tester ekata indicate karanna puluwan... voltage level eka adu nisa eliya adu wei ...

Last edited by AEG; 07-22-2019 at 09:19 PM.
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07-22-2019, 09:20 PM

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07-22-2019, 09:35 PM

Quote:
Originally Posted by AEG View Post
very good question ... normally 3 phase kiyanne balanced system ekak. pahala tiyena phasor diagram eke wage neutral point eka center eke tie wela tiyenne perfectly balanced system ekaka....normally transformers wala nm neutral point eka ground karala tamai tiyenne ...



eka phase ekak down unama wenne neutral point eka anith phase deka pattata shift wenawa ... gedarata ena voltage eka kiyanne phase ekak saha neutral point eka atara voltage defference eka ... so neutral eka shift unama voltage difference eka adu wenawa ... result is dimming lights ...

oka wenne HV primary side eke phase ekak out unoth da? secondary 220V phase 3n ekak cut unath neutral eka shift wenna puluwanda?
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07-22-2019, 09:42 PM

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