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Answer :

The household energy meter is an integrating instrument.

Related questions

Description : An induction type energy meter is found to run fast. Correction for this error can be made by  (A) Over-load compensation. (B) Voltage compensation. (C) Moving the brake magnet away from the centre of the disc. (D) Moving the brake magnet towards the centre of the disc.

Last Answer : An induction type energy meter is found to run fast. Correction for this error can be made by Moving the brake magnet away from the centre of the disc.

Description : A 200 V, 5 A d.c. energy meter is tested at its marked ratings. The resistance of the pressure circuit is 8000 Ω and that of current coil is 0.1 Ω. The power consumed when testing the meter with phantom loading with current circuit excited by a 6 V battery is (A) 2.5 W (B) 5 W (C) 32.5 W (D) 35 W

Last Answer : A 200 V, 5 A d.c. energy meter is tested at its marked ratings. The resistance of the pressure circuit is 8000 Ω and that of current coil is 0.1 Ω. The power consumed when testing the meter with phantom loading with current circuit excited by a 6 V battery is 35 W

Last Answer : The adjustment of position of shading bands, in an energy meter is done to provide friction compensation.

Description : How Household Use Electricity And Energy

Last Answer : I have often wondered what the average use of energy of appliances is. Here is a breakdown by percentage usage of each consuming appliance taken from a sampling of US households. Refrigerators 13.7% ... Telephone 0.2 Rechargeable Tools 0.2 Humidifier 0.1 Automobile Block Heater 0.0 Residual 7.3

Description : Explain the “mitigation of power theft” and “faulty meter replacement” for energy conservation techniques to reduce commercial losses. 

Last Answer : Energy conservation techniques to reduce commercial losses:  1. Mitigation of Power Theft: Power theft being the most important issue which all of the service providing utilities ... agricultural sector. Prepaid meters may prove effective measures against unauthorized abstraction of energy. 

Description : Draw a block diagram of electronic energy meter. Write function of each block.

Last Answer : Electronic Energymeter  Functions of components/blocks: - CT reduces current to reasonable value for current scaling network. - Voltage & current scaling networks reduce proportionally the voltage ... ADC converts the square wave frequency analog output to display the energy in watthour.

Description : State the function and shape of following parts used in induction type energy meter: i) Series magnet ii) Shunt magnet iii) Al disc iv) Brake magnet

Last Answer : i) Series magnet: produce flux proportional to current (load current) of circuit and interact in the aluminum disc with flux produced by voltage magnet for torque production. Its shape is like letter U.  ii) ... : brakes the motion of the aluminum disc or slows it down. Its shape is like letter C. 

Description : State the meaning of creeping error in 1 phase energy meter.

Last Answer : Creeping error: It is defined as the slow and continuous rotation of the disc of the energy-meter when only pressure coil is energized with no current in the current coil (load current = 0). ... magnet on this iron wire is sufficient to prevent continues rotation of the disc on no load condition.

Description : Draw a neat sketch of 1-ph induction type energy meter and write operating principle of it. 

Last Answer : Operating Principal:- The disc is placed between the two-flux due to pressure coil and flux due to current coil, which will set up torque on the disc which is proportional to power causing the ... is proportional to voltage, the second carries a current coil so its flux is proportional to current.

Description : Draw and describe working of electronic energy meter.

Last Answer : working of electronic energy meter:- 1. CT reduces current to reasonable value for current scaling network. 2. Voltage & current scaling networks reduce proportionally the voltage & ... The ADC converts the square wave frequency analog output to display the energy in watthour. 

Description : What is meant by energy meter constant?

Last Answer : Energy Meter Constant  A fixed value which is used when converting meter readings to actual energy use, especially when potential transformers and similar types of equipment are used in metering. For example, K=--------rev/Kwh

Description : With neat diagram explain calibration of energy meter by direct loading method.

Last Answer : Calibration of Energy Meter by Direct Loading Method:  There are three methods for testing/calibration:  1. Long period dial test  2. Using rotary sub- standard meter  3. Using precision grade instruments  All ... of substandard meter in kWh  Then % error = [(D - DS)/DS] x 100

Description : Why energy meter is integrating type measuring instrument?

Last Answer : Energy Meter is Integrating Type Measuring Instrument: Energy meter is used for measurement of energy, which is obtained by integration (summation) of power supplied over the particular time duration, hence it the integrating type measuring instrument. 

Description : Write any two advantages of digital energy meter.

Last Answer : Advantages of Digital Energy Meter: 1) Easy to read. 2) High accuracy 3) High resolution. 4) No frictional losses as there are no moving parts. 5) No requirement for external adjustments. 6) Large ... due to absence of moving parts. 7) Highly efficient. 8) Very much compact. 9) Good reliability.

Description : List any four errors in induction type energy meter. Give method of compensation for each.

Last Answer : Errors in Induction Type Energy Meter with their Compensation:  1) Error due to friction: This error can be compensated by the additional shading band provided on the shunt electromagnet.  2) Phase ... error: This error can be compensated by providing a flux diverter' to the current magnet. 

Description : Phantom loading for testing of energy meter is used (A) to isolate the current and potential circuits (B) to increase power loss during testing (C) for meters having low current ratings (D) to test meters having a large current rating for which loads may not be available

Last Answer : B

Description : The disc of a single phase Induction-type energy meter makes 60 revolutions in 6 minutes. Meter Constant is 1200 rev/kWh. Power consumption in the load is (A) 1.2 kW (B) 1 kW (C) 600 W (D) 500 W

Last Answer : The disc of a single phase Induction-type energy meter makes 60 revolutions in 6 minutes. Meter Constant is 1200 rev/kWh. Power consumption in the load is 500 W

Description : For measurement of radio frequency ac signals __________ type meter is used

Last Answer : For measurement of radio frequency ac signals thermo-couple type meter is used

Description : A moving coil of meter has 100 turns, and a length and depth of 10mm and 20mm respectively. It is positioned in a uniform radial flux density of 200 mT. The coil carrier current capacity is 50 mA. The torque on the coil is

Last Answer : A moving coil of meter has 100 turns, and a length and depth of 10mm and 20mm respectively. It is positioned in a uniform radial flux density of 200 mT. The coil carrier current capacity is 50 mA. The torque on the coil is 200µNm

Description : The meter which does not have any component in it to provide control torque is (A) Electrodynamometer for current measurement (B) Electrodynamometer for voltage measurement (C) Electrodynamometer for power measurement. (D) Electrodynamometer for power factor measurement.

Last Answer : The meter which does not have any component in it to provide control torque is Electrodynamometer for power factor measurement.

Last Answer : A Weston frequency meter is moving iron instrument.

Last Answer : In a Weston frequency meter, the magnetic axes of the two fixed coils are perpendicular.

Last Answer : In a vibrating reed frequency meter the natural frequencies of two adjacent reeds have a difference of 0.5 Hz.

Last Answer : In a dynamometer 3-phase power factor meter, the planes of the two moving coils are at 120°.

Last Answer : In a single phase power factor meter the phase difference between the currents in the two pressure coils is exactly 90°.

Last Answer : The two pressure coils of a single phase power factor meter have the same dimensions and the same number of turns.

Last Answer : A power factor meter has one current circuit and two pressure circuits.

Last Answer : The multiplier and the meter coil in a voltmeter are in series.

Last Answer : An induction meter can handle current up to 100 A.

Description : What type of meter is used to measure current?

Last Answer : Ammeter

Description : Which household chore do you find most relaxing to do?

Last Answer : I don't know if I call any household chore relaxing. I find vacuuming satisfying, because in a few easy minutes the lines in the carpet make my house look clean even if I cleaned nothing else. To ... with things that make you anxious. Chores for me are more like which one do you hate the least.

Description : Is there objective data available and current that shows the household income of military recruits?

Last Answer : answer:I have searched some scholarly journals and have found little information on the socioeconomic status of military enlistees. I'll share some of the good information, but since I ... pertinent information here is that the Pentagon doesn't track socioeconomic information on military recruits.

Description : Does your household have a puke bucket?

Last Answer : I successfully conditioned my little brother to enjoy the taste.

Description : What is the overall atmosphere in your household?

Last Answer : Complete chaos (3 kids)

Description : What household chores are you a bit neurotic about?

Last Answer : Dishes

Description : What ordinary household object of yours would you use as a weapon if you had to?

Last Answer : Scissors, my heavy iron frying pan I can barely life (nods to Eating Raoul), my dog’s teeth.

Description : What are some uncommon household items you have that made your life easier or you can't live without?

Last Answer : Good question but kind of a tall order. Maybe letter-P-shaped dental floss things – I never learned to floss my teeth but those are entirely usable by me, which makes a big difference for my dental health.

Description : What's a good basic household toolbox?

Last Answer : you just need basic hammer, screw drivers, ratchet, pliars (spelled wrong), tape measure, etc. Just basic tools like these are found in basic kits at Home Depot and Lowes. Guestimated cost of $35

Description : Best free website for product reviews on household goods such as laundry soaps,etc?

Last Answer : Consumer Reports lets you see one class of product before making you subscribe. They are still the most independent.

Description : What are the best common household hiding places for secret stuff?

Last Answer : I could tell you. But then I’d have to kill you.

Description : How To Make Use Of Household Salt

Last Answer : 1. Soak stained hankies in salt water before washing. 2. Sprinkle salt on your shelves to keep ants away. 3. Soak fish in salt water before descaling; the scales will come off easier. 4. Put a ... 't smell and will bake into a dry, light crust which will wipe off easily when the oven has cooled.

Description : How To Make Household Uses For Vinegar

Last Answer : The smell from vinegar disappears in 30 minutes. For internal use Apple Cider Vinegar works best. It is made from the whole apple which contains a large amount of potassium and other things that change ... to tenderize. 62. A strength tonic: combine raw eggs, vinegar and black pepper. Blend well.

Description : Varieties of household refrigerators

Last Answer : Now there are a large number of different types of refrigerators, each of which has certain features and is suitable for specific operating conditions. There are classic, single-chamber, ... the required temperature. Each type of refrigeration equipment has certain design features and purposes.

Description : Would this gauss meter be any good?

Last Answer : answer:Oooo!!! Did you get the Chony? Made in Mississigua Ont? I have one of those and love it. I cannot tell about the gauss meter. TI could be anything. Sorry. The Chony on the other hand is fantastic.

Description : What is meter rule

Last Answer : It is a one meter long graduated stick. It is used to measure the length of an object or distance between two points. A meter rule is divided into 100 equal parts, each part is equal to one centi meter.

Description : Draw venture meter and write steps to measure flow rate.

Last Answer : Venturi meter consists of three sections that is converging section, throat section and diverging section. The flow is introduced to the meter through the inlet with diameter D' . The inclined angle ... to 15o . Flow rate is proportional to the square root of the differential pressure.

Description : List variable flow meter. 

Last Answer : 1. Variable area : Rotameter 2. Variable head : a) Venturi b) Orifice c) Pitot tube d) Nozzle

Description : working of distortion factor meter with block diagram

Last Answer : Working : Initially the switch S is kept at position 1.The attenuator gets excluded and the bridge T network is adjusted for full suppression of fundamental frequency and hence we get ... is obtained on the meter.Thus the total rms distortion is indicated by the reading of attenuator. 

Description : Principal of digital frequency meter.

Last Answer : The basic block diagram of basic digital frequency meter (DFM) is shown in above figure. The signal whose frequency we have to be measured is first to be amplified through amplifier. The output of amplifier ... = Number of counts. t = Time interval between start and stop condition of the gate.

Description : State one application of clip on meter.

Last Answer : Clip-on meter is used to measure the High value AC current without breaking the circuit Or without opening the circuit.