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What is good power quality?

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Description : What are the power quality disturbance?

Description : What is harmonic in power quality?

Description : What is a power quality analyzer?

Description : What is power quality meter?

Description : What are the different power quality issues?

Description : What is power quality monitoring?

Answer : Power quality is important because the electrical appliances will works better and will be safer and less loss in energy. Low energy waste and improves stability of power system .

Answer : By applying various power quality monitoring devices and using telecommunication technique .

Description : Explain energy conservation technique “by improving power quality” for induction motor.

Answer : Energy conservation method in induction motor by improving power quality: Electrical energy can be conserved by improving the power quality. It can be achieved by avoiding voltage unbalance, maintaining ... losses can be minimized by using harmonic filter thus reducing the harmonics in the system.

Description : Bed linen: what to choose for a good sleep?

Answer : In a dream, a person spends an average of 15 to 30 years of his life (up to 30% of the total time). During these periods, the body's resources are restored. The way a ... composition, manufacturers manage to reduce the cost, but these additives significantly worsen the hygienic quality of products.

Description : Why is bamboo furniture good?

Answer : Bamboo is a gigantic herb that grows in many eastern countries, where the hobby for products from it came from. Due to its strength, plasticity, resistance to moisture, a large number of ... will bring beauty, sophistication and natural warmth to your home and will perfectly fit into any interior.

Description : Name two good conductors, two good insulators, and two semiconductors.

Answer : In general all metals are good conductors, with silver the best and copper second.

Description : All good conductors have high?

Answer : All good conductors have high conductance.

Description : A material for good magnetic memory should have?

Answer : A material for good magnetic memory should have high retentivity.

Description : A good voltage regulation of a transformer means?

Answer : A good voltage regulation of a transformer means output voltage fluctuation from no load to full load is least.

Description : How to choose quality upholstery for your furniture?

Answer : Often in a store, customers pay attention to the color of the upholstery. Usually, the color is chosen that fits perfectly into the interior of the room. Today the stores offer a wide ... has acquired all the properties of natural leather. Outwardly, such material often looks very high quality.

Description : How to choose a quality raincoat?

Answer : A raincoat is an outer garment most often made of waterproof material. It was invented back in the days of the Byzantine Empire, as a means of protection from bad weather (rain and wind). ... correct choice of a raincoat are that it should be not only practical and comfortable, but also stylish.

Description : How do I choose quality cutlery?

Answer : At first glance, it may seem that there is nothing simpler than a spoon or a stainless steel knife, but you need to approach the choice of cutlery for the home responsibly. These ... superfluous. The documents must contain the manufacturer's details and important information about the product.  

Description : The higher the price, the better the quality, or how not to waste your money

Answer : The higher the price, the better the quality, or how not to waste your money A headache for every homeowner is the need to protect him from bad weather and intruders. You can, of course, take ... is obliged to give a guarantee for its products, which may slightly increase the value of the goods.

Description : How to check the quality of installation of interior doors?

Answer : How to check the quality of installation of interior doors? Interior doors are being installed at the final stage of renovation. It can take up to 5 hours to install one door. But, ... tips will help you avoid possible problems and properly control the quality of installation of interior doors.

Description : Quality control is aimed at: a. Maintaining the desired quality b. Exceeding the desired quality c. Continuously improving the quality d. Following the quality

Answer : Quality control is aimed at: a. Maintaining the desired quality b. Exceeding the desired quality c. Continuously improving the quality d. Following the quality

Description : Explain various performance parameter used to evaluate the quality of inverters.

Description : What is the use of power factor correction?

Description : What is the best power factor?

Answer : It is unity power factor but difficult to achieve in dynamic loads

Description : What is power factor angle?

Description : What is a digital power meter?

Description : What is an RF Power Meter?

Description : What causes random power outages?

Description : What is the advantage of high power factor?

Answer : Reduced copper losses Smaller conductor size Improve voltage regulation Increase system capability Less energy bill

Description : What is power logger?

Description : What can you do to prevent a power surge?

Description : What would cause a power surge in a house?

Answer : If your neibour / other flat owners / your maintainer staff switch on any type of inductive load that can cause power surge / dip  

Description : What is meant by power dip?

Description : Can you have a power factor greater than 1?

Answer : We cannot have power factor greater than 1. As it is a measure of cosine of angle between voltage and current. 

Description : Why do we need to correct power factor?

Description : How do you measure power factor?

Answer : P= 1.83*V*I*[email protected] where P is power           V is voltage            I is current           COS @ is P.F [email protected]= P/(1.83*V*I)  in other way cos @ = true power/apparent power

Description : Can a power surge erase a hard drive?

Description : Can power surge damage your computer?

Description : How often do power surges occur?

Description : What is the value of capacitance required to improve power factor from 0.7 to 0.9. Given that: Real power = 50 W Vrms of the source = 120 Frequency = 50 Hz   #powerfactor

Description : What are the basic requirements of locating wind power plant ?

Answer : The basic requirements of locating wind power plant:  1) The site should be selected where winds are strong i.e. where pressure of wind is high and there is continuity. 2) Wind pressure ... the turbine which can affect the system's overall performance. 10)Possibility to connect to power grid. 

Description : What are the criteria for selection of site for hydroelectric power plant?

Answer : Following Factors to be kept while site selecting for Hydro power plant:  1. It should be located where high rain fall occurs. 2. A large catchments area must be available to store water. 3. It ... 12. Cost of land should be less. 13. Skilled and unskilled man power should be available nearby.

Description : Options: A) WATT B) AMPERE C) VOLTS D) OHM

Answer : Correct Answer: A) WATT

Description : What is the choice of size and number of generator units in interconnected power system?

Answer : Choice of Size and Number of Generating Units: 1. The size/rating and number of generating units in such way that they approximately match with the load curve as closely as possible. 2. In ... , if power plant is connected to grid system then generating unit of higher capacity can be installed.

Description : What is need of regulated power supply?

Answer : A regulated power supply is used to ensure that the output remains constant even if the input changes. But sometimes main supply voltage, load, and surrounding temperature keep changing and altering the ... power supply is needed that will accept an AC input and give a constant DC output.

Description : What is the Power Supply specification for 8085AH microprocessor? A) Single +5V supply with 10% voltage margins B) Dual +5V supply with 10% voltage margins C) Single +10V supply with 5% voltage margins D) Dual +5V supply with 5% voltage margins 

Answer : What is the Power Supply specification for 8085AH microprocessor? A) Single +5V supply with 10% voltage margins B) Dual +5V supply with 10% voltage margins C) Single +10V supply with 5% voltage margins D) Dual +5V supply with 5% voltage margins 

Description : What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 500 Hz (frequency) source of the same voltage:  (A) Eddy Current and Hysteresis losses will be ... Current will be too much high  (C) Transformer may start to smoke and burn  (D) No effect

Answer : What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 500 Hz (frequency) source of the same voltage:  (A) Eddy Current and Hysteresis losses will be ... will be too much high  (C) Transformer may start to smoke and burn  (D) No effect

Description : What is the power factor when a single phase watt meter operating on 200 V and 5 A for 5 hours makes 2016 revolutions and the meter constant in revolution is 420? A) 0.04 B) 1.04 C) 0.96 D) None of these

Answer : What is the power factor when a single phase watt meter operating on 200 V and 5 A for 5 hours makes 2016 revolutions and the meter constant in revolution is 420? A) 0.04 B) 1.04 C) 0.96 D) None of these

Description : To protect the power transformer (Y-Y with neutral grounded) against fault, what type of connection do the CTs have ?

Answer : To protect the power transformer (Y-Y with neutral grounded) against fault, what type of connection do the CTs have ? Δ-Δ connection

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