It is found that generation of three phase power is more economical than generation of single phase power. In three phase electric power system, the three voltage and current waveform are 120o offset in time in each cycle of power. That means; each voltage waveform has phase difference of 120o to other voltage waveform and …
Single phase power refers to the distribution system in which; all the voltages vary in unison. It can be generated simply by rotating a moving coil in a magnetic field or by moving field around a stationary coil. The alternating voltage and alternating current so produced, thus referred to as single phase voltage and current. …
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Let us consider a single phase power circuit in which current lags behind the voltage by an angle φ.Let the instantaneous electric potential difference v = Vm.sinωtThen the instantaneous current can be expressed as i = Im. sin(ωt – φ).Where, Vm and Im are the maximum values of sinusoidally varying electric potential difference and current …
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Electrical power system parameters Let’s try to understand different parameters of electrical power system. Three basic parameters of electrical power system are electrical resistance, inductance and capacitance. Resistance The resistance is an inherent property of any material, due to which it resists the flow of current by obstructing the movement of electrons through it due …
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The voltage and power current are two basic parameters of the electrical circuit. However, only electric current and energy are not enough to determine the character of an electric object. We need to know how much electricity (electric power), something a region can handle. We have all seen that a 60 watt electric lamp provides …
Google confirms which Wear OS smartwatches will get upgraded to Wear OS 3 In a blog post, Google has confirmed which existing Wear OS smartwatches will be upgraded to Wear OS 3, the result of Google and Samsung’s non-sacred union. Google has revealed that only a very short list of devices will be upgraded to …
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You know that calibration is required for a new instrument. We want that the instrument is provide accurate indication or output signal when it is installed. But there is chances of instrument error occurs. Instrument error can occur due to a variety of factors: drift, environment, electrical supply, addition of components to the output loop, …
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Calibration Tolerance: All measurements should be made to specified tolerances. The words tolerance and accuracy are often misused. In ISA’s The Automation, Systems, and Instrumentation Dictionary, their definitions are as follows: Accuracy: The magnitude of the error of the total output scale or the error rate to the output, expressed in percentage time or percentage …
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According to ISA’s The Automation, Systems, and Instrumentation Dictionary, the word calibration is defined as “a test during which known values of measurand are applied to the transducer and corresponding output readings are recorded under specified conditions.” calibration is a comparison of measuring equipment against a standard instrument of higher accuracy to detect, correlate, adjust, …
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At the Inspire 2021 partners conference, Microsoft announced Windows 365 Cloud PC, a new cloud service that will allow organizations to access Windows 10 or Windows 11 on any device from the cloud. Windows 365 Cloud PC is built on the Azure Virtual Desktop service and will be available to organizations from August 2nd. At …
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