Why the commercial unit of electrical energy is used for billing purposes instead of joules?

Q: 1. Are the theoretical calculations and measured values are equal? Explain?

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Q: According to the NEC, what equipments are included in PPE

A: The term PPE stands for Personal Protective Equipment.  PPE is required to ensure the safety of the…

Q: In induction type energy meter, Recording system consists of a set of dials…

A: Induction type energy meter

Q: 4. a) Explain the issues to be considered in the location of wind energy systems. b) Draw the block…

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Q: How did they know how to break the block diagrams? What are the block diagram rules?

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Q: With neat diagram explain the working of motor used in elevators.  Diagram should draw by Hand and…

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Q: Repair work perfomed on vehicles still under the manufacturer's warrantly is usually performed by?

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Q: calculate the computer to load for an electric range that has a nameplate reading of 15 KW?

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Q: What is the third method of checking the condition of a wet or flooded battery ? Explain the…

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Q: What is

A: Given:  The NEC Article 430 is shown as:

Q: EXPLAIN BRIEFLY THE IMPORTANT PARTS OF GENERATING STATION THAT PRODUCES ELECTRICAL ENERGY?

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Q: 1. Outline/Give Two examples for job factors that could lead to poor/bad health and safety behaviour…

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Q: The graphical method used to analyze the stability of the power system is?

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Q: Where did they get 200 from?

A:

Q: On the different maintenance GIVEN BELOW what are the maintenance that need to conduct on the MOTOR…

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Q: Every device in a DC, whether a light or electric motor, can be replaced by an electric

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Q: (b) Explain what is power system protection and why is it important?

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Q: What down the uses of performing maintenance on machine.

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Q: electric power system

A: NOTE- “Since you have posted a question with multiple sub-parts, we will solve first three subparts…

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Q: Can you explain why it become short circuit?

A:

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Q: Explain the calculation in details.

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Q: Question 1: Why is the voltage decresed at no-load operation? What is that voltage called?

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Q: calculate the speed

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Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.