Which of the following meter is used in integrating type instrument?

Explanation:

Integrating Type Instrument

Definition: An integrating type instrument is an instrument that measures the total quantity of electricity (energy) delivered over a period of time. This type of instrument is essential for applications where it is necessary to accumulate the total amount of electrical energy consumed, rather than just measuring the instantaneous values of voltage, current, or power.

Energy Meter:

The correct answer to the question "Which of the following meter is used in integrating type instrument?" is option 3, the Energy Meter. Let's delve deeper into the functioning and importance of an energy meter.

Working Principle: An energy meter operates based on the principle of electromagnetic induction. It comprises a rotating aluminum disc placed between two electromagnets. The disc is connected to a spindle, which is connected to the counting mechanism. When electrical current flows through the meter, it produces a magnetic field that interacts with the magnetic field produced by the voltage coil. This interaction creates a torque that causes the disc to rotate. The speed of rotation is proportional to the power consumed. As the disc rotates, it drives the counting mechanism, which records the total energy consumed over time.

Advantages:

• Provides accurate measurement of electrical energy consumption over time.
• Essential for billing purposes in residential, commercial, and industrial applications.
• Helps in energy management and conservation by providing insights into energy usage patterns.

Disadvantages:

• Can be affected by external magnetic fields, leading to inaccuracies in measurement.
• Mechanical wear and tear over time can affect the accuracy and lifespan of the meter.

Applications: Energy meters are widely used in various applications, including:

• Residential: To measure the electrical energy consumption of households for billing purposes.
• Commercial: To monitor and manage energy usage in commercial buildings, offices, and retail spaces.
• Industrial: To track energy consumption in manufacturing plants, factories, and other industrial facilities.

Correct Option Analysis:

The correct option is:

Option 3: Energy Meter

This option correctly identifies the type of meter used in integrating type instruments. An energy meter measures the total quantity of electrical energy consumed over a period of time, making it an essential integrating instrument.

Additional Information

To further understand the analysis, let’s evaluate the other options:

Option 1: Voltmeter

A voltmeter is an instrument used to measure the electrical potential difference (voltage) between two points in an electrical circuit. It provides an instantaneous reading of the voltage at the time of measurement. Voltmeter is not an integrating type instrument as it does not accumulate the total quantity of electricity over time.

Option 2: Ammeter

An ammeter is an instrument used to measure the electric current flowing through a circuit. It provides an instantaneous reading of the current at the time of measurement. Like the voltmeter, an ammeter is not an integrating type instrument because it does not measure the total quantity of electricity over time.

Option 4: Power Meter

A power meter measures the instantaneous power consumed by a load in an electrical circuit. While it provides valuable information about the power usage at a specific moment, it does not integrate the total energy consumed over time. Therefore, it is not considered an integrating type instrument.

Conclusion:

Understanding the functions and applications of different electrical measuring instruments is crucial for accurately identifying their roles. An energy meter, as explained, is an integrating type instrument that measures the total electrical energy consumed over a period of time. This capability makes it essential for billing and energy management purposes. In contrast, voltmeters, ammeters, and power meters provide instantaneous readings and do not perform the integrating function required to measure total energy consumption.