The testing equipment used to detect faults in the operation of electrical devices by creating stimulus signals and capture responses from electrical devices under test is known as electrical test equipment. If any faults are detected, then identified faults can be traced a rectified using electrical testing equipment. Most often all electrical and electronic circuits are tested and troubleshooted to detect faults or abnormal functioning if any. Therefore, testing equipment is necessary to find and analyze the circuit conditions, for checking electronic test equipment and maintenance in various industries.
The nine common types of electrical testing equipment’s discussed in this video. There are Voltmeter, Ammeter, Ohmmeter, Multimeter, Clamp meter, Wattmeter, Energy meter, Megger meter, Oscilloscope etc.
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A temperature sensor is a device that detects and measures hotness and coolness and converts it into an electrical signal.
There are different types of temperature sensors, that have sensing capacity depending upon their range of application. The six basic types of temperature measuring sensors discussed in this video. There are thermocouples, R T D, Thermistors, Semiconductor sensors, Infrared Temperature Sensors, Thermometers.
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In our normal life we used different types of sensors that are commonly used in various applications. All these sensors are used for measuring one of the physical properties like Temperature, Resistance, Capacitance, Conduction, Heat Transfer etc.
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যদি আপনাকে কোন viva বা Interview Broad -এ প্রশ্ন করা হয় যে, Transformer এর Rating KW-এ প্রকাশ না করে কেন KVA-তে প্রকাশ করা হয়?
এই প্রশ্নটি প্রায় প্রতিটি চাকুরির পরীক্ষা বা Viva Broad-এ প্রশ্ন করা হয়। Electrical Machine অথবা Device গুলোর মধ্যে যে Device গুলো Power Consume করে বা গ্রহন করেথাকে সেই Device গুলোর Rating Watt বা KW -এ প্রকাশ করা হয়। যেমন 5Kw হিটার Motor-ইত্যাদি।আর যে Machine অথবা Device গুলো Power Produce করে বা power-এর Level Change করে। সেই Machine বা Device গুলোকে Rating-VA বা KVA -তে প্রকাশ করা হয় । যেমন অল্টারনেটর Transformer ইত্যাদি। তাই আজ আমরা এই Video-তে দেখবো যে Transformer এবং Alternator-এর Rating কেন KVA-তে প্রকাশ করা হয়।
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