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खनन और खनिज उद्योगों में पर्यावरणीय स्थिरता विषय पर विशेषज्ञों का मंथन

खनन और खनिज उद्योगों में पर्यावरणीय स्थिरता  विषय पर विशेषज्ञों का मंथन पर्यावरणीय स्थिरता मानव समाज के निरन्तर अस्तित्व, समृद्धि और स्वास्थ्य के लिए मूलभूत शर्त है। हमारी न्यू जनरेशन को स्पीड और टेक्नोलॉजी पर ध्यान केंद्रित करना होगा ताकि भविष्य को सुनहरा बनाया जा सके। उक्त विचार मुख्य अतिथि श्री एमपी सिंह, प्रधान मुख्य अभियंता, केंद्रीय विद्युत प्राधिकरण विद्युत मंत्रालय भारत सरकार, नई दिल्ली ने व्यक्त किए श्री सिंह भूपाल नोबल्स स्नातकोत्तर महाविद्यालय में भूविज्ञान विभाग द्वारा "खनन और खनिज उद्योगों में पर्यावरणीय स्थिरता" विषय पर आयोजित दो दिवसीय राष्ट्रीय कॉन्फ्रेंस के समापन पर बोल रहे थे। दो दिवसीय राष्ट्रीय कान्फ्रेंस का भव्य समापन सम्मानित अतिथि प्रो विनोद अग्रवाल सदस्य, भारत सरकार नई दिल्ली स्थित MOEFCC की विशेषज्ञ मूल्यांकन समिति, (सि एण्ड टीपी) अपने उद्बोधन में कहा कि पर्यावरण स्थिरता सरकार और समाज दोनों की जिम्मेदारी है। वर्तमान में खनन उद्योग विभिन्न प्रावधानों एवं कानूनों के तहत कार्य कर रहा है ताकि पर्यावरण को सुरक्षित रखा जा सके। आयोजन सचिव डॉ. हेमंत सेन न...
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Advantage and Disadvantage of Power Electronics

Advantage and Disadvantage of Power Electronics

Advantage of Power electronics

  • Power electronics is used in space shuttle power supplies
  • Since there is very low loss in power electronic devices so its efficiency is very high.
  • Power electronic converter systems are highly reliable.
  • Since there is no moving parts in power electronic systems so it has long life and also its maintenance cost is very less.
  • The power electronic systems has fast dynamic response in comparison to electromechanical converter systems.
  • Since the power electronic system has small size and also it has less weight so they occupy less floor space and hence their installation cost is also less.
  • Now these days power equipments are being mostly used, so power semiconductor devices are being produced on a large scale, resulting in lower cost of converter equipment.
  • Power electronics are used in computer and office equipments.
  • It is used in uninterruptible power supplies.
  • Power electronics are used in elevators.
  • Power electronics is also used in light dimmers and flashers

Disadvantage of Power electronics

  • The power electronic converter circuits have a tendency to generate harmonics in the supply system as well as in the load circuit.
  • AC to DC and DC to AC converters operate at a low input power factor under certain operating conditions. In order to avoid a low power factor, some special measures have to be adopted.
  • The overload capacity of power electronic controllers are very low.
  • It is very difficult to regenerate power in power electronic converter systems.
To know about this lecture in more detail please visit on https://youtu.be/Yfwi8uHUIxY
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