Sf6 सल्फर हेक्साफ्लोराइड सर्किट ब्रेकर

 

इलेक्ट्रिकल सिस्टम में किसी भी इक्विपमेंट के PROTECTION के लिए या ह्यूमन बॉडी के PROTECTION के लिए ऐसे अनेक प्रकार के सर्किट ब्रेकर का उपयोग किया जाता है जिसे कुछ इलेक्ट्रिकल पैरामीटर के द्वारा या किसी दूसरे इक्विपमेंट के जरिए इलेक्ट्रिकल पावर सप्लाई से सर्किट ब्रेकर को ऑपरेट किया जाता है

जिससे लाइव कांटेक्ट से किसी भी सर्किट अथवा इक्विपमेंट को आइसोलेट कर देता है जिसे इक्विपमेंट को सुरक्षा प्रदान होती है आइए हम अब इसी तरह एक बहुत बड़ी अर्थात इलेक्ट्रिकल सिस्टम के HV हाई वोल्टेज में उपयोग होने वाले सर्किट ब्रेकर के बारे में जानेंगे

इस प्रकार के सर्किट ब्रेकर का उपयोग 33KV  या 66 KV  जैसे एक्स्ट्रा हाई वोल्टेज सब स्टेशनों में प्रयोग किया जाता है इस प्रकार के सर्किट ब्रेकर में  क्लीनचिंग मीडियम की तरह उपयोगी ऑयल या ईयर के बदले सल्फर हेक्साफ्लोराइड Sf6 गैस का उपयोग किया जाता है 

इस प्रकार के सर्किट ब्रेकर में गैस इलेक्ट्रोनेगेटिव प्रकार का होता है  जो इलेक्ट्रॉन को जल्दी से एब्सॉर्ब कर लेता है  इससे यदि कोई  ARC उत्पन्न होता है तो ARC स्पेस में ही sf6 गैस के जरिए ब्लास्ट होने से इलेक्ट्रॉन में एब्सॉर्ब  हो जाता है और इमोबाइल नेगेटिव आयन पैदा  होता है इससे मीडियम में डाइलेक्ट्रिक स्ट्रैंथ में तेजी से ARC को क्लीनचिंग कर देता है 

 

CONSTRUCTION  OF सल्फर हेक्साफ्लोराइड सर्किट ब्रेकर

 

अब हम sf6 सल्फर हेक्साफ्लोराइड सर्किट ब्रेकर  के कंस्ट्रक्शन के बारे में सीखेंगे

इसमें आकृति में बताया अनुसार sf6 सर्किट ब्रेकर की संरचना एकदम सरल बताई गई है जिसमें फिक्स कांटेक्ट तथा मूविंग कांटेक्ट आए हुए हैं  फिक्स कांटेक्ट में  आर्किंग  हॉर्न  रखा जाता है फिक्स कांटेक्ट तथा मूविंग कांटेक्ट की टिप तथा आर्किंग  हॉर्न पर कॉपर टंगस्टन का कोटिंग किया जाता है

यह मटेरियल  ARC रजिस्टेंस प्रकार का होता है  मूविंग कांटेक्ट में एक तरफ आयताकार भाग  की जगह रखी जाती है

sf6 गैस  ARC  क्लीनचिंग करने के बाद वह बाहर निकल जाता है   दोनों कांटेक्ट 1 चेंबर में रखा जाता है  इस चेंबर को ARC चेंबर अथवा ARC इंटरप्शन चेंबर कहा जाता है इस चेंबर में sf6 गैस 2.8 KG / Cm Square  के दबाव से भरा  होता है

सल्फर हेक्साफ्लोराइड सर्किट ब्रेकर के कार्य

अब हम जानेंगे कि sf6 सल्फर हेक्साफ्लोराइड गैस का कार्य क्या है

हेल्थी कंडीशन में जब सर्किट ब्रेकर का कांटेक्ट क्लोज होता है तब ARC चेंबर में sf6 गैस 2.8 KG / Cm square  के दबाव से भरा  होता है  जब किसी भी प्रकार का फॉल्ट होता है तब ऑपरेटिंग मेकैनिज्म से मूविंग कांटेक्ट ओपन होता है और  फिक्स कांटेक्ट तथा मूविंग कांटेक्ट के बीच ARC पैदा होता है

sf6 गैस से भरे हुए कंटेनर का वाल्व खुलता है और sf6 गैस 14 KG / Cm square  के दबाव से  ARC इंटरप्शन चेंबर में  जाता है sf6  गैस के हाई प्रेशर ब्लो होने से ARC ठंडा  होता जाता है  तथा  ARC के इलेक्ट्रॉन को एपिसोड  करता है  इससे इमोबाइल नेगेटिव आयन बनता है  जिससे डाइलेक्ट्रिक स्ट्रैंथ में गति आती है  और ARC  क्लीनचिंग हो जाता है

ब्रेकर के ऑपरेशन होने के बाद स्प्रिंग की मदद से वाल्व क्लोज हो जाता है  बाहर निकले हुए sf6 गैस को  रीकंडीशन करके फिर से  उसको उपयोग में लिया जाता है 

Sf6  सल्फर हेक्साफ्लोराइड सर्किट ब्रेकर के फायदे

Sf6 सल्फर हेक्साफ्लोराइड सर्किट ब्रेकर के  क्या-क्या फायदे  हैं  अब हम उसके बारे में सीखेंगे

  • [1] आर्किंग  की गुणवत्ता अच्छी होती है जिससे आर्किंग  टाइम कम  लगता  है
  • [2] sf6 गैस के डाइलेक्ट्रिक स्ट्रैंथ हवा से दो तीन गुनी होती है जिससे कई गुना कीमत  के करंट को ब्रेक करने में प्रयोग किया  जाता है
  • [3] इस प्रकार के ब्रेकर का ऑपरेशन आवाज रहित होता है इसका एग्जॉस्ट वातावरण में नहीं होता
  • [4] आग लगने का कोई भय नहीं होता करण की sf6 गैस में आग लगे ऐसा नहीं होता
  • [5] गैस एंक्लोजर बंद होता है जिससे उसमें नमी, भेज  नहीं होता
  • [5] ARC प्रोडक्ट में कार्बन पार्टिकल पैदा नहीं होता इसलिए इंसुलेशन की कोई दिक्कत नहीं होती
  • [6] मेंटेनेंस का प्रमाण कम होता है

इस प्रकार के सर्किट ब्रेकर में टोटली एंक्लोज्ड प्रकार का होता है यह वातावरण से अलग होता है इसलिए एक्सप्लोजन की सक्यता हो तो वातावरण में  उपयोग करने के लिए उत्तरदायित्व है जैसे उदाहरण की तरह कोयले की खानों में …

Sf6  सल्फर हेक्साफ्लोराइड सर्किट ब्रेकर के  क्या-क्या  नुकसान  हैं  अब हम उसके बारे में सीखेंगे

  • [1] Sf6  सल्फर हेक्साफ्लोराइड  गैस  बहुत कॉस्टली है
  • [2] Sf6  सल्फर हेक्साफ्लोराइड गैस अधिक खर्च होने से इसका हर एक ऑपरेशन के समय इसके गैस रीकंडीशन किया जाता है जिससे इसको दोबारा में उपयोग किया जा सकता है

अब हम Sf6  सल्फर हेक्साफ्लोराइड सर्किट ब्रेकर का उपयोग कहां कहां होता है उसके बारे में जानेंगे

इस  प्रकार के सर्किट ब्रेकर का उपयोग हाई पावर हाई वोल्टेज के लिए उपयोग किया जाता है  इसका एक इन्ट्रपप्टिंग  यूनिट 60000 A  तथा वोल्टेज रेटिंग 50KV  से  80 KV  होता है 

सिस्टम वोल्टेज के प्रमाण पर देखा जाए तो इन्ट्रपप्टिंग यूनिट को सीरीज में जोड़ा जाता है  इस प्रकार के सर्किट ब्रेकर का उपयोग 230 KV  तक  तथा 20 MVA के रेटिंग तक डेवलप किया गया है     मुझे आशा है की आपको मेरा ये छोटा सा KNOWLEDGE Sf6  सल्फर हेक्साफ्लोराइड सर्किट ब्रेकर RELATED आपके लिए हेल्पफूल होगा   

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