Electric Motor DATA Library

Transcription

1 Electric Motor DATA Library I have presented this informtion for your educational and entertainment use only. You can, and should, compare it with other data that you have, from other sources, and other formulas you may have acquired or use. The Astro Flight, Inc. Electric Motor Handbook, by Bob Boucher is an invaluable asset in helping you to understand, and use, the following data. Astro Flight, Inc., Beach Ave., Marina Del Rey, CA or (310) If you have any motor data, like the following, that you could give to me to enter here, I'd love to share it with the rest of the folks in the world. via KRESS JETS, INC. 800 Ulster Landing Road Saugerties, NY (914) FAX: (914) Electro Flight Design: $79.50 Electric Prop Model Design: $69.50 Ducted Fan Performance Prediction Program: $69.50 Mfg'r Name/Use No. Type Kv Kt Inl Ra Turns/Pole Astro Marine 425(25) F Astro Marine 440(40) F Astro Boat 304 C Astro Racing 306 C Astro " 326 C Astro " 341 C Astro Sport 603(035) C Astro Aircraft 605 C Astro " 615 C Astro " 625 C Astro " 640 C Astro " 661 C Astro " 662 C Astro " 690 C Astro " 691 C Astro FAI 604(035) C Astro Aircraft 608(05) C Astro " 627(25) C Astro " 642 C Astro " 643 C Astro " 660 C Kyosho Aircraft AP-29 F Kyosho " AP-36 F Kyosho Truck Mega-360 F Trinity Car Procar F Trinity Ducted Fan KR V F Trinity P-38 KR-3 9.6V F Kyosho Ducted Fan KR V F (rewound Mega-360) Graupner Speed 400 6V 3321 F Graupner Speed V 3320 F Graupner Speed V 1794 F Graupner Speed V 3302 F Graupner Speed V 3307 F Graupner Speed V 3316 F Trinity Car Slot Machine F Robbe Power V 4470 F

2 Robbe Power V 4471 F Robbe Power V 4472 F Robbe Power V 4473 F Robbe Starmax 40 12V 4130 F Robbe Starinax 48 16V 4131 F Robbe Starmax V 4132 F Robbe Power V 4465 F Robbe Navy S 4.8V 4109 F Robbe Navy S 6.0V 4102 F Robbe Navy M 6.0V 4108 F Robbe RS-380S 6.0V 3405 F Robbe RS-540S 7.2V 3425 F Robbe RS-540SD 7.2V 4076 F Robbe Starmax F SEHS 7.2V Robbe Turbo Std. 7.2V 4092 F Robbe EF 76II 8.4V 4013 F Robbe EF 76IIS 8.4V 4011 F Robbe PRO 325/4 8.4V 4730 N Robbe PRO 330/4 12V 4731 N Robbe PRO 330/6 12V 4732 N Robbe PRO 525/4 12V 4750 N Robbe PRO 536/4 12V 4751 N Robbe PRO 536/7 28.8V 4752 N Robbe PRO 736/5 24V 4770 N Robbe PRO 740/6 32.4V 4771 N Robbe PRO 744/5 32.4V 4773 N Robbe PRO 744/4 36V 4772 N Robbe PRO 736/8 33.6V 4774 N Robbe Power V 4474 F Keller KE V 4300 N Keller KE 540M 8.4V 4301 N Keller KE 540T 8.4V 4302 N Keller KE 22/5 8.4V 4310 N Keller KE 22/9 12V 4311 N Keller KE 22/12 12V 4312 N Keller KR 25/4 8.4V 4320 N Keller KE 25/5 8.4V 4321 N Keller KE 25/6 8.4V 4322 N Keller KE 25/8 8.4V 4323 N Keller KE 25/10 12V 4324 N Keller KE 25/ V 4325 N Keller KE 25/ V 4326 N Keller KE 35/5 8.4V 4330 N Keller KE 35/6 8.4V 4331 N Keller KE 35/8 12V 4332 N Keller KE 35/ V 4333 N Keller KE 35/ V 4334 N Keller KE 40/6 14.4V 4344 N Keller KE 40/8 16.8V 4342 N Keller KE 40/ V 4340 N Keller KE 40/14 24V 4341 N Keller KE 50/5 12V 4350 C Keller KE 50/6 12V 4351 C Keller KE 50/7 16.8V 4352 C Keller KE 50/8 19.2V 4353 C Keller KE 50/ V 4354 C Keller KE 50/ V 4355 C

3 Keller KE 70/4 16.8V 4370 C Keller KE 70/5 19.2V 4371 C Keller KE 80/6 21.6V 4380 C Keller KE 80/7 21.6V 4381 C i Keller KE 80/8 28.8V 4382 C Keller KE 80/9 28.8V 4383 C Keller KE 100/5 24V 4410 C Keller KE 100/6 24V 4411 C Keller KE 100/8 32.4V 4412 C Keller KE 100/9 32.4V 4413 C Keller KE 240/4 36V 4420 C Keller KE 240/5 24V 4421 C Keller KE 240/6 32.4V 4422 C Fine Mfg. Cordite 19.2V KR-7 Fan C Fine Mig. Cordite 19.2V KR-8 Fan N Fine Mig. Cordite 19.2V KR-9 Fan F Fine Mfg. Cordite 19.2V KR-10 Fan N AVEOX l409/3d D=delta C AVEOX 1409/4D wired C AVROX 1409/5D C AVEOX 1412/5D C AVEOX l4l2/7d C AVEOX l412/9d C AVEOX 1406/2Y Y=Wye C AVEOX 1406/3Y wired C AVEOX 1406/4Y C AVEOX 1409/2Y C AVEOX 1409/3Y C AVEOX 1409/4Y C AVEOX 1412/2Y C AVEOX 1412/3Y C AVEOX 1412/4Y C AVEOX 1412/5Y C AVEOX 1817/2Y N AVEOX 1817/3Y N AVEOX 1817/4Y N AVEOX 2310/6Y N AVEOX 2315/6Y N AVEOX 2315/8Y N The Following Is the Data on the MaxCim Max15 Brushless provided by: Tom Cimato 57 Hawthorne Dr. Orchard Park, NY @compuserve.com Mfg'r Name/Use No. Type Kv Kt Inl Ra MaxCim Max15-13Y MaxCim Max15-13D The Following Data is from "Model Electronics Corp. Turbo 10 Plus" - Product Review - Model Airplane News - Tom Hunt - May 1995 Mfg'r Name/Use No. Type Kv Kt Inl Ra MEC Turbo 10 Plus

4 From KAN Kerken Airfield News Your favorite R/C soaring pages from Germany Speed 500 & 600 motor data modified by Ken Myers General information about the SPEED 500 & 600 series Identify your motor Graupner (and others) are using some special terms to identify their motors: SPEED 500 length 50 mm (just shy of 2 in.), shaft diameter 3.17 mm (1/8 in.) SPEED 600 length 60 mm (about 2 3/8 in.), shaft diameter 3.17 mm (1/8 in.) ECO or E low amature cuuent BB shaft bearing with ball race(s) TURBO 5 slot armature RACE high speed motor COMPETITION high speed motor, tuned exchangeable brushes, ball race bearings EXPERT for competition and expert use Speed 500 The SPEED 500 series has two classes. The high performance and high quality group consisting of the motors no. 1740, 3305, 3315 and The other motors are the economy group for general purpose use. This group consists of motor no. 1788, 1789, 1799 and All motors of the Speed 500 series have a 3-slot armature. Graupner recommends the SPEED 500 motors for sport models with an all up weight of about g (35-44 oz.), the span shouldn't exceed 1200 mm (47 in.). Symbols used in the following tables: Un nominal voltage (V) Ri armature resistance (Ohm) Io armature current idle, no load (A) Eta = efficiency (%) I_Eta = armature current at best efficiency n = revolutions / minute n/v = typical motor speed per volt SPEED 500 Series Overview SPEED RX SPEED Type 540 RB VZ SPEED 500 E 12V 500 RACE SPEED 500 Cat.-No Un (V) Ri (Ohm) Io (A) n/v Eta (%) I_Eta(A) Weight(g) 170(6 oz.) 158 (5.6 oz.) 164 (5.75 oz.) 162 (5.7 oz.) SPEED 500 SPEED 500 SPEED 500 Type BB RACE VS BB Competition BB Competition Speed 500 Cat-No Un (V) Ri (Ohm) Io(A)

5 n/v Eta (%) I_Eta(A) Weight (g) 166 (5.85 oz.) 196 (6.9 oz.) 196 (6.9 oz.) 160 (5.65 oz.) SPEED 600 Series SPEED 600 SPEED 600 SPEED 600 SPEED 600 SPEED 600 Type BB 9.6V 9.6V BB 7.2V 7.2V 8.4V Cat-No Ri (Ohm) Io (A) n/v Eta (%) I_Eta(A) Weight(g) 201 (7 oz.) 198 (7 oz.) 197 (7 oz.) 198 (7 oz.) 220 (7.75 oz.) Flux-ring no no no no yes SPEED 600 BB SPEED 600 BB SPEED 600 SPEED 600 RB Type TURBO 12V 8.4V ECO 7.2V TURBO 14.4V Cat.-No Ri(Ohm) Io (A) n/v Eta (%) I_Eta(A) Weight(g) Flux-ring yes yes yes yes Some Math How to calculate the motor parameters There are various ways to calculate the motor para-meters. The formulas shown below are close approxi-mations of the actual motor performance. Motor constant K K = Uk/n Uk (V) and n (rev/min) motor data from data sheet - Example: 8.4 Volt /16000 rev/min = (data for SPEED 600 BB 8.4V No. 3316) Note: This is the inverse of n/v which is rpm per volt Motor series resitance Ri Ri (Ohm) =(UkL - nl x K)/Im UkL (V), nl (rev/min) and Im (A) measured under load conditions - Example: (6.5 Volt rev/min x )/24.3 Ampere = Ohm (data for SPEED 500 BB No. 3315) Remark: In case you use a reduction gear, multiply prop speed and gear ratio to calculate the motor speed under load! Motor back EMF Uemk Uemk(V) = nl x K Example: rev/min x = Volt (data for SPEED 500 BB No. 3315)

6 Motor resistor voltage drop Uri Uri(V) = UkL - nl x K Example: 6.5 Volt rev/min x = Volt (data for SPEED 500 BB No. 3315) Power consumption Pin Pin (W) = Uk x Im Example: Pin = 6.5 Volt x 24.3 Ampere = Watt (data for SPEED 500 BB No. 3315) Power at motor shaft Pw Pw(W) =(Uk - Ri x Im) x (Im-Io) Example: (6.5 Volt Ohm x 24.3 Ampere) x (24.3 Ampere Ampere) = Watt Remark: measurments show a result about 10% below this value! 84 Watt (data for SPEED 500 BB No. 3315) Efficiency Eta Eta (%) =Pw/Pin x 100 Example: Watt / Watt x 100=60.66 % Remark: measurments show a result about 10% below this value! 54 % (data for SPEED 500 BB No.3315) Power Loss PLo PLo (w) =Pin - Pw or PLo (w) = Pin x (100 - Eta)/100 Example: Watt Watt = Watt or Watt x ( ) / 100 = Watt (data for SPEED 500 BB No. 3315) Maximum amature curent for SPEED 600 motors Imax (A) = SQR(40 Watt / Ri) SQR = sqare root: Example: SQR(40 Watt / Ohm) = Ampere 40 Watt as power loss PL was measured an acceptable value, you can increase it to PL = 60 Watt. 60 Watt will wear out the motor much faster than 40 Watt. For a SPEED 500 motor it is about the same, I guess (GB). Model weight Wm as result of power at motor shaft Pw Wm (g) =Pw x l0 (factor can be 10 to 15) Weight in oz. = (Pw x 10)/28.35 Example: x 10 = 734 g or x 10 / = oz. You can increase the factor up to 15 for a duration glider. A sports model shouldn't exceed a weight limit of 735 g for some sort of dynamic flying, gliders can have a higher weight - power ratio but the factor shouldn't exceed 15. This equation is based on practical tests and experience. Figuring Power Absorbed in Static condition by Various Props (several common formulas) (The easiest way to see what is happening is to enter the following in a spread sheet) Note that the Abbott, Boucher and Young formulas give about the same power out to the prop; Abbott: = inches of pitch * inches of diameter 4 * RPM 3 * 5.33 * 10-15

7 Boucher: = 1.31 * pitch in feet * diameter in feet 4 * RPM in thousands 3 (for Master Airscrew, Top Flite, Zinger), for Rev-up subtract 1/2" from the pitch, for folding use 1.18 instead of 1.31, for APC use 1.11 instead of 1.31 Young: = inches of pitch * inches of diameter 4 * RPM 3 * 746/(1.4 * 10^17) Note the large difference these Australian formulas give, compared to the above formulas; Stevenson/Tapp: Fixed = 1.1 * * pitch in inches * diameter in inches 4 * RPM 3.15 Folding = 9.5 * * pitch in inches * diameter in inches 4 * RPM 3.15 Unknown: Fixed = * 10-6 * pitch in inches 1.03 * diameter in inches 3.86 * RPM in thousands 3.03 Folding =3.395 * 10-6 * pitch in inches 0.96 * diameter in inches 3.94 * RPM in thousands 3.14 From EFI May/June 1996 Using a "prop constant" to get power out Power out = prop constant x (RPM in thousands) 3.15 or Thousands of RPM = (power/prop constant) Prop Constants for Graupner Speed Props 5 x x x x Sanyo Battery Data from Doug Ingraham & Bob Kress Just Added from Sanyo 1996 Catalog N-270AA IR=0.015 ohms Weight = 14 g or 0.49 oz. N-270AA IR=0.015 ohms Weight = 14 g or 0.49 oz. N-500A IR=0.009 ohms Weight = 22 g or 0.78 oz. N-500A IR=0.009 ohms Weight = 19 g or 0.67 oz. N-500AR IR=0.009 ohms Weight = 19 g or 0.67 oz. N-500AR IR=0.009 ohms Weight =.67 oz. N-500A IR=0.009 ohms Weight = 19 g or 0.67 oz. N-600AA IR=0.012 ohms Weight = 26 g or 0.92 oz N-600AA IR=0.012 ohms Weight = 23 g or oz KR-600AE IR=0.010 ohms Weight = 21 g or 0.74 oz. KR-600AE IR= ohms Weight = 18 g or 0.63 oz N-600SCR IR= ohms Weight = 29 g or 1.02 oz. N600SCR IR= ohms Weight = oz.. N-600SCR - NOT LISTED IN 1996 CATALOG N-650SC IR=0.006 ohms Weight = 29 g or 1.02 oz. N-650SC IR=0.006 ohms Weight = 29 g or oz. N-700AR IR=.007 ohms Weight = oz. N-700AR - NOT LISTED IN 1996 CATALOG N-800AR IR=0.006 ohms Weight = 34 g or 1.20 oz. N-800AR IR=0.006 ohms Weight = oz. N-800AR - NOT LISTED IN 1996 CATALOG KR-800AAE IR=0.012 ohms Weight = 24 g or 0.85 oz. KR-800AAE IR=0.012 ohms Weight = 23 g or oz.

8 KR-1000AE IR=0.008 ohms Weight = 31 g or 1.09 oz. KR-1000AEL IR=0.008 ohms Weight = 27 g or oz. N-1000SCR IR= ohms Weight = 42 g or 1.48 oz. N-1000SCR IR= ohms Weight = 1.48 oz. N-1000SCR IR= ohm Weight = 41 g or oz. N-1100SCR IR= ohms Weight = oz. N-1100SCR IR= ohms Weight = 43 g or oz. KR-1200AE IR= ohms Weight = 34 g or 1.20 oz. KR-1200AE IR= ohms Weight = 30 g or 1.05 oz. N-1300SCR IR=0.004 ohms Weight = oz. N-1300SCR IR=0.004 ohms Weight = 52 g or 1.82 oz. N-1400SCR IR=0.004 ohms Weight = 53 g or 1.87 oz. N-1400SCR IR=0.004 ohms Weight = oz. N-1400SCR IR= ohms Weight = 53 g or oz. N-1700SCRC IR=0.004 ohms Weight = 56 g or 1.98 oz. N-1700SCRC IR=0.004 ohms Weight = oz N-1700SCRC - NOT LISTED IN 1996 CATALOG N-1700SCR IR=0.004 ohms Weight = 54 g or 1.89 oz. N-1800SCR IR=0.004 ohms Weight = oz. N-1800SCR IR=0.004 ohms Weight = 60 g or 2.1 oz. N-1900SCR IR=0.004 ohms Weight = 56 g or 1.96 oz. N-2000CR IR= ohms Weight = oz. N-2000CR IR= ohms Weight = 81 g or oz. N-2500CR IR= ohms Weight = 81 g or oz.