खालीलपैकी कोणते उपकरण मोटरला चुकीची विद्युतदाब पातळी प्राप्त होण्यापासून वाचवते?

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ALP CBT 2 Electrician Previous Paper: Held on 22 Jan 2019 Shift 3
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  1. फेज सीक्वेंस डिटेक्टर
  2. नियंत्रण रिले
  3. कॉन्ट्रैक्टर
  4. फ्यूज

Answer (Detailed Solution Below)

Option 1 : फेज सीक्वेंस डिटेक्टर
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Detailed Solution

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  • फेज सीक्वेंस डिटेक्टर मोटरला चुकीची विद्युतदाब पातळी प्राप्त होण्यापासून वाचवते.
  • तीन-फेज पुरवठ्यासाठी फेज-सिक्वेन्स डिटेक्टर किंवा फेज-सिक्वेन्स चेकर हे विद्युत परिपथामधील पुरवठ्याच्या तीन-टप्प्यातील अनुक्रमाची चाचणी करण्यासाठी किंवा तीन-फेज इंडक्शन मोटर, तीन-फेज-ऊर्जा मीटर इत्यादी विद्युत मोटर्सच्या इनपुटवर वापरले जाणारे उपकरण आहे.
  • मोटर ऑपरेशनचे नियंत्रण अशा प्रकारे होते की संरक्षण परिपथ विद्युतदाब अंतर्गत आणि अतिभार परिस्थितीत मोटर बंद करते आणि फेज रिव्हर्सल परिस्थितीत फेज अनुक्रम दुरुस्त करते.
  • फेज सीक्वेंस डिटेक्टरचे सामान्यत: दोन प्रकार आहेत

 

1. स्थिर प्रकार फेज सीक्वेंस डिटेक्टर

2. फिरवत प्रकार फेज सीक्वेंस डिटेक्टर

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