Engineer Bhaiya Ji

Electrical electronic measurement In this article, you will find the study notes on  Measurement & Electrical Quantities-1  which will cover the topics such as  Electrical Instrument Measurement,   Classification of Electrical Instrument, Absolute Instrument, Secondary Instrument, Analog Instrument, Deflecting Instrument, Integrating Instrument, Recording Instrument, Principle of Operation of Analog Instrument, Essentials of Indicating Instrument, Deflecting, Controlling & Damping Torque, Construction Details of Indicating Instrument, Spring & Gravity Control Mechanism, Current Measurement & Voltage Measurement & Permanent Magnet Moving Coil (PMMC) & Types of Instruments used for Ammeter and Voltmeter. Electrical Instruments and Measurement:  Instruments used to measure, current, voltage, power energy, flux, frequency etc., are called electrical measuring insturments. Classification of...

In this article, you will find the study notes on  Instrument Transformer & Digital Volt-Meter  which will cover the topics such as  Instrument Transformers,Circuit Diagram of Instrument Transformer, Advantages of Instrument Transformer, Different Ratios of Instrument Transformer, Different Parameter in Instrument Transformer, Current Transformer (CT) & Potential Transformer, Analog to Digital Converter & Ramp Type Digital Voltmeter. Instrument Transformers:  Instrument transformer used for over current, under voltage earth fault and for relay protection. It might appear that the extension of range could be conveniently done by the use of shunts for currents and multiplier for voltage measurement, as in DC.But this method is suitable only for small values of current and voltage due to the following reason Difficult to achieve accuracy with a shunt on AC. Capability of having shunt of large range is not possible. The power c...