say five inches, giving eighty. Example: For a 220V electric motor with a 40-Amp LRA or FLA rating. Already a Member?

Slip of a motor can be found from the formula: s ... where S start = Rated HP of the motor * Code factor (Code factor is a number which is reserved for class) For example, all motors of class A have a fixed code factor which should be multiplied with rated HP in the above equation.) Like to read more content, Join the Gas Engine Magazine Community Today. We'll give the motor horsepower as its maximum in our examples below but you can choose any amperage rating to calculate an equivalent horsepower number. We have no relationship with advertisers, products, or services discussed at this website. Given parameters are Horsepower formula is given as. don't have an online For example, 18,000 BTUh is equivalent to 2 HP (horsepower) or 24,000 = 2.5 HP. Calculator ; Formula Formula : HP = (E x I x Eff) / 746 Where , HP = Horsepower E = Voltage I = Current Eff = Efficiency Related Calculator: DC Motor Horsepower Calculator DC Motor Horsepower calculation is made easier here using this electrical calculator. Formula : HP = (E x I x Eff) / 746 Where , HP = Horsepower E = Voltage I = Current Eff = Efficiency . The total power of a F1 engine is measured after calculating the power in the V6 engines, and Energy Recovery System (ERS). An accurate answer to the question of translating RLA into horsepower requires more data: the voltage leel and the number of phases of electrical current. Horsepower (HP) = (Torque × Speed)/5252. Need to Find: Formula: Horsepower DC (Volts x Amps x Efficiency)/746: Horsepower AC (Volts x Amps x 1.732 x Eff x PF)/746 But for typical residential air conditioner systems and heat pump systems we can assume we're talking about 240V and 2-phases of power. Now divide by 13,000 for inch bore this gives sixteen. In this The electrical requirements is INPUT POWER.

Continue reading at ELECTRIC MOTOR DIAGNOSTIC GUIDE - topic home, or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX. Here is an easy formula for determining the horsepower P = (Q x PF)/(33,000 x ) or. Later it was expanded to different types of piston engines, electric motors, turbines and other machinery. Note: appearance of your Comment below may be delayed: if your comment contains an image, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator. If motor is driving the max load it is allowed, it will run at RLA. To determine a pumps horsepower use the following equation. RLA will always be a smaller number than LRA which is lock rotor amps - the start-up current draw. Click to Show or Hide Citations & References, ARTICLE INDEX to ELECTRICAL INSPECTION & TESTING, HOME INSPECTION EDUCATION COURESES (Canada), HOME INSPECTION EDUCATION: HOME STUDY COURSES, Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the. It is a unit power that compares the power of a machine to the horse muscle power. Taking the bore and stroke of several different engines we have For complete details about these basic electrical formulae see DEFINITIONS of ELECTRICAL TERMS.

E.G. One Horsepower equals to 33,000 lb. Calculate the speed of the vehicle if its horsepower is 0.865 hp and torque is 250 pound-foot. Horsepower is OUTPUT POWER. Later it was expanded to different types of piston engines, electric motors, turbines and other machinery. How to Calculate Horsepower from Motor Amperage. CBSE Previous Year Question Papers Class 10, CBSE Previous Year Question Papers Class 12, NCERT Solutions Class 11 Business Studies, NCERT Solutions Class 12 Business Studies, NCERT Solutions Class 12 Accountancy Part 1, NCERT Solutions Class 12 Accountancy Part 2, NCERT Solutions For Class 6 Social Science, NCERT Solutions for Class 7 Social Science, NCERT Solutions for Class 8 Social Science, NCERT Solutions For Class 9 Social Science, NCERT Solutions For Class 9 Maths Chapter 1, NCERT Solutions For Class 9 Maths Chapter 2, NCERT Solutions For Class 9 Maths Chapter 3, NCERT Solutions For Class 9 Maths Chapter 4, NCERT Solutions For Class 9 Maths Chapter 5, NCERT Solutions For Class 9 Maths Chapter 6, NCERT Solutions For Class 9 Maths Chapter 7, NCERT Solutions For Class 9 Maths Chapter 8, NCERT Solutions For Class 9 Maths Chapter 9, NCERT Solutions For Class 9 Maths Chapter 10, NCERT Solutions For Class 9 Maths Chapter 11, NCERT Solutions For Class 9 Maths Chapter 12, NCERT Solutions For Class 9 Maths Chapter 13, NCERT Solutions For Class 9 Maths Chapter 14, NCERT Solutions For Class 9 Maths Chapter 15, NCERT Solutions for Class 9 Science Chapter 1, NCERT Solutions for Class 9 Science Chapter 2, NCERT Solutions for Class 9 Science Chapter 3, NCERT Solutions for Class 9 Science Chapter 4, NCERT Solutions for Class 9 Science Chapter 5, NCERT Solutions for Class 9 Science Chapter 6, NCERT Solutions for Class 9 Science Chapter 7, NCERT Solutions for Class 9 Science Chapter 8, NCERT Solutions for Class 9 Science Chapter 9, NCERT Solutions for Class 9 Science Chapter 10, NCERT Solutions for Class 9 Science Chapter 12, NCERT Solutions for Class 9 Science Chapter 11, NCERT Solutions for Class 9 Science Chapter 13, NCERT Solutions for Class 9 Science Chapter 14, NCERT Solutions for Class 9 Science Chapter 15, NCERT Solutions for Class 10 Social Science, NCERT Solutions for Class 10 Maths Chapter 1, NCERT Solutions for Class 10 Maths Chapter 2, NCERT Solutions for Class 10 Maths Chapter 3, NCERT Solutions for Class 10 Maths Chapter 4, NCERT Solutions for Class 10 Maths Chapter 5, NCERT Solutions for Class 10 Maths Chapter 6, NCERT Solutions for Class 10 Maths Chapter 7, NCERT Solutions for Class 10 Maths Chapter 8, NCERT Solutions for Class 10 Maths Chapter 9, NCERT Solutions for Class 10 Maths Chapter 10, NCERT Solutions for Class 10 Maths Chapter 11, NCERT Solutions for Class 10 Maths Chapter 12, NCERT Solutions for Class 10 Maths Chapter 13, NCERT Solutions for Class 10 Maths Chapter 14, NCERT Solutions for Class 10 Maths Chapter 15, NCERT Solutions for Class 10 Science Chapter 1, NCERT Solutions for Class 10 Science Chapter 2, NCERT Solutions for Class 10 Science Chapter 3, NCERT Solutions for Class 10 Science Chapter 4, NCERT Solutions for Class 10 Science Chapter 5, NCERT Solutions for Class 10 Science Chapter 6, NCERT Solutions for Class 10 Science Chapter 7, NCERT Solutions for Class 10 Science Chapter 8, NCERT Solutions for Class 10 Science Chapter 9, NCERT Solutions for Class 10 Science Chapter 10, NCERT Solutions for Class 10 Science Chapter 11, NCERT Solutions for Class 10 Science Chapter 12, NCERT Solutions for Class 10 Science Chapter 13, NCERT Solutions for Class 10 Science Chapter 14, NCERT Solutions for Class 10 Science Chapter 15, NCERT Solutions for Class 10 Science Chapter 16. Next multiply eighty by the R.P.M., ELECTRIC MOTOR HORSEPOWER at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice. Putting it in a formula it looks like cylinders). On 2017-03-13 by Steve - Horsepower is OUTPUT POWER.

Plus our Flywheel Forum column helps answer your engine inquiries! Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia. Speed = 600 revolutions per minute>. For a four cylinder engine, (Aug 2, 2014) Eng.M.Mossad2010@gmail.com said: From the part of " FROM EQUIPMENT RLA # - Air Conditioning Equipment Capacity from Equipment RLA Numbers " in the article above can we find a relation between the equipment's RLA and the HP "horse power " for the Compressor motor? Since the maximum rotating power or force exerted by an electrical motor is that needed to get the motor spinning we should look at the motor's LRA or FLA rating. To express watts in amps or current is not reasonable since these are two different measurement scales (Watts in power and amps in coulombs per second). Apologies for the delay. V T = Rated voltage. Remember to use 13,000 for a four cycle engine and 10,000 for a Most compressor motors will run less than RLA because they are not typically fully loaded. of most any gas engine and any number of cylinders. Code to add this calci to your website .
We can easily express Amps in a formula to obtain horsepower as follows: AMPS = ( Horsepower x 746 ) / Voltage. 40A = (Horsepower x 746) / V. 40 = (HP x 746) / 220 (40 x 220 ) = HP x 746 (40 x 220) / 746 = Horsepower. we get practically six horsepower or eight horsepower for a two cycle. Now divide by 13,000 for a four-cycle engine or by 10,000 for a two cycle engine. There is another Horsepower formula related to the weight given as. Early Farm Tractors: A History In Advertising Line Art, Diesel Oddities: Fairbanks-Morse Model 45B Engines, Understanding Breaker Point Ignition Systems, Cheap Fix: Briggs and Stratton Coil Conversion. two cycle engine. For a four cylinder engine, say, just calculate the one cylinder and multiply by four and it will come out pretty close. We explain the relationship between rated load amps (RLA), and full load amps (FLA) and lock rotor amps (LRA) ratings on electric motors. account? Equation: Where: P = Power, hp Q = Flow Rate, gpm S = Specific Gravity of fluid H = Head height, ft = Efficiency coefficient. here and figuring it all out, we find that it checks out mighty In this case of the 4 x 5 at 1,000 R.P.M. You can find the basic rating data for an air conditioner compressor motor (or for other HVACR motors) by noting information on the data plates we describe in detail. There is more but this is the basics. Fans and Blower Horsepower Equation. say, just calculate the one cylinder and multiply by four and it

We can write the famous (and simplified) equation in any of the three ways using simple algebra: AMPS = Watts / Volts  OR Watts = Amps x Volts OR Volts = Watts / Amps. If you assume the efficiency is about 80% (pretty safe), then the Input power would be 1 / 0.8 or 1.25x the output horsepower, in order to deliver that much power. Electric Motor Horsepower (HP) Formula - Electrostatics. The electrical requirements is INPUT POWER. DC Motor Horsepower calculation is made easier here using this electrical calculator. The following are hydraulic motor related equations for determining horsepower and related engineering design data. this gives 80,000. There is another Horsepower formula related to the weight given as. and at say 1,000 R.P.M. Refrigeration engineers generally state that if we know LRA we can estimate RLA as follows: (for most electric motors LRA is about 5 times greater than its RLA/FLA and some may be 7 times greater. Gas Engine Magazine brings you: restoration stories, company histories, and technical advice. Determine the horsepower of a car which moves with a speed of 600 revolutions per minute and has a torque of 100 pound-foot.

These electric motor horsepower formulas, definitions, and ratings are suitable for determining the horsepower of an air conditioner compressor motor, a fan motor, a well pump motor and similar equipment. a four-cycle engine or by 10,000 for a two cycle engine. Already a Member but

The term Horsepower was invented by James Watt. We also provide a MASTER INDEX to this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. 120 Watts / 120 Volts = 1 Amp of current. It is defined as the work done per unit time. Details about locked rotor amp ratings and LRA FLA data tables are given, 1 HP (horsepower) = 745.7 Watts (round to 746 W). Formula ; Simple electrical calculator helps to calculate the horsepower for dc (direct current) motor. / 13,000 x  N (Numbers of
Also if the motor is three phase you can reduce the amps by 1.73 when converting from watts to FLA. Your email address will not be published. we get practically six horsepower Example 2 Let's also note for other readers that RLA = running load amps - the current drawn normally during the operation of an electric motor. Compressors need to be compared for the same rated conditions and same area of application, as motor designs and uses vary. Torque = 100 pound-foot


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