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How is engine performance rated?
Engine performance can be rated by horsepower or torque rating, depending on how powerful the engine is. Larger engines for car and boats are rated in horsepower. Smaller engines (>1horsepower) can be rated in torque rating.
What is rated power of an engine?
Engine power is rated in horsepower and in torque. In simple terms torque is the power that gets things moving and horsepower is the force that keeps things moving.
Which motor is superior in efficiency and the most extensively used of all types of electric motors?
Motor efficiency depends on the motor size and how much it is loaded. You get the best efficiency above 75% of the rated load for that motor. Note the table below: Horsepower Standard Premium Efficiency Efficiency% Efficiency% 1 --- 78.0 --- 82.5 2 --- 78.5 --- 84.0 5 --- 84.0 --- 89.6 10 --- 84.0 --- 91.1 15 --- 87.5 --- 91.7 25 --- 90.2 --- 93.0 50 --- 91.7 --- 94.1 100 --- 91.7 --- 95.0 250 --- 94.1 --- 95.8
Why are distribution transformers frequently designed to develop maximum efficiency at loads that are somewhat lower than rated value?
It is always desirable to run any equipment or device at maximum efficiency for that matter, not only the power transformer. Power transformer maximum efficiency occurs when copper loss is equal to iron loss. (or no load loss equals to load loss). This does not necessariliy mean that maximum efficiency occurs at maximum or full load. Generally the maximum efficiency occurs at relatively less than full load of the transformer.
What is SEER in terms of home air conditioning?
The efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER). The higher the rating the more efficent the air conditioner is. A common misconception is that the SEER rating is also used on heating systems but it's only for air conditioners.
What is the percentage load at which maximum efficiency occurs for the single phase transformer?
For a single-phase transformer, maximum efficiency typically occurs at around 50-70% of the rated load. Operating the transformer at this load range minimizes losses and improves efficiency. Going below or above this range can decrease efficiency and increase losses in the transformer.
How do you set thermal relay for HT motor?
110% of the rated current.
How is engine performance rated?
Engine performance can be rated by horsepower or torque rating, depending on how powerful the engine is. Larger engines for car and boats are rated in horsepower. Smaller engines (>1horsepower) can be rated in torque rating.
When is efficiency of 3phased Induction motor maximum what is the condtion for maximum efficiency in induction motor?
It is maximum at about 75% to 100% of the motor rated load. Efficiency is maximum at unity power factor , when R=X and when variable losses Is equal to constant losses at rated load.
What is the difference between MCB and MCCB?
MCB (Miniature Circuit Breaker)-rated current not more than 100 A. Trip characteristics normally not adjustable. Thermal or thermal-magnetic operation. Breakers illustrated above are in this category.MCCB (Molded Case Circuit Breaker)-rated current up to 2500 A. Thermal or thermal-magnetic operation. Trip current may be adjustable in larger ratings. MCB (Miniature Circuit Breaker)-rated current not more than 100 A. Trip characteristics normally not adjustable. Thermal or thermal-magnetic operation. Breakers illustrated above are in this category.MCCB (Molded Case Circuit Breaker)-rated current up to 2500 A. Thermal or thermal-magnetic operation. Trip current may be adjustable in larger ratings.from Manu anand
Why should I choose an energy star rated dishwasher?
You should choose an energy star rated dishwasher for the best power efficiency you can get.
What is open range rated?
R for violence
What is Morse test?
Morse test is done on a 4 stroke multi cylinder engine. The objective is to find the brake power (power available at the crank shaft) of the engine. You can also find torque, mech. efficiency etc... Let us consider a 4 cylinder spark ignition (petrol engine) engine for an example. The following steps are to be performed 1. The engine is started and is run at the rated speed. 2. The maximum load of the engine is calculated and is connected to the engine . The engine is now brought to its rated speed . 3. The first cylinder is cut off by shorting the spark plug . 4. Now because the cylinder is cut off the engine speed is reduced. 5. Hence the load is to be varied such that the engine comes back to its rated speed. 6. Then the first cylinder is again started and the same is repeated for all the other cylinders. The engine can be loaded using a dynamo meter (hydraulic or eddy current)
What are the top-rated bath houses in Switzerland for a relaxing and rejuvenating experience?
Some of the top-rated bath houses in Switzerland known for a relaxing and rejuvenating experience include Therme Vals, Tamina Therme, and Leukerbad Therme. These facilities offer a range of thermal baths, spa treatments, and wellness services to help visitors unwind and recharge.
How are flares rated?
The guns are generally rated on caiber or guage. The flares may be rated on range, type, brightness, color, etc.
What is the best rated brand of electric range cooker?
According to user ratings of different websites, "Leisure" seems to be the best rated brand of electric range cooker. "Belling" and "Flavel" are also well rated brands.
What are the ratings and certificates for Strange on the Range - 1974?
Strange on the Range - 1974 is rated/received certificates of: USA:G
