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**8**

**9** APPENDIX 5A. CONSTRUCTION AND PERFORMANCESPECIFICATIONS OF

SMALL ELECTRIC MOTORS DESIGNED FOR THE ENGINEERING ANALYSIS

TABLE OF CONTENTS

**5A.1 POLYPHASE,**  **1 HP,**  **4 POLE,**  **56 FRAME**  **MOTOR**

**........................................................ 3** 

**5A.1. Stator**  **Dimensions**

**................................................................................................. 3** 

**5A.1. Rotor**  **Dimensions**

**................................................................................................. 3** 

**5A.1. Rotor**  **Slot Dimensions** 

**.......................................................................................... 3** 

**5A.1. Ring**  **and Coil**  **Data**

**................................................................................................ 4** 

**5A.1. Electrical**  **Data**

**....................................................................................................... 4** 

**5A.1. Load**  **Speed and**  **Slip Information** 

**......................................................................... 4** 

**5A.1. No**  **Load Performance** 

**........................................................................................... 4** 

**5A.1. Locked**  **Rotor Data** 

**................................................................................................ 5** 

**5A.1. Breakdown**  **Load Parameters** 

**................................................................................ 5** 

**5A.1.10 Reactance**  **Values**

**.................................................................................................. 5** 

**5A.1.11 Winding**  **Information**

**............................................................................................ 6** 

**5A.1.12 Magnetic**  **Circuit Data** 

**........................................................................................... 6** 

**5A.2 CAPACITOR­START**  **INDUCTION­RUN 1⁄2**  **HP, 4**  **POLE, 56**  **FRAME MOTOR** 

**......... 7** 

**5A.2. Stator**  **Dimensions**

**................................................................................................. 7** 

**5A.2. Rotor**  **Dimensions**

**................................................................................................. 7** 

**5A.2. Rotor**  **Slot Dimensions** 

**.......................................................................................... 7** 

**5A.2. Ring**  **and Coil**  **Data**

**................................................................................................ 8** 

**5A.2. Electrical**  **Data**

**....................................................................................................... 8** 

**5A.2. Load**  **Speed and**  **Slip Information** 

**......................................................................... 8** 

**5A.2. No**  **Load Performance** 

**........................................................................................... 9** 

**5A.2. Locked**  **Rotor Data** 

**................................................................................................ 9** 

**5A.2. Breakdown**  **Parameters**

**......................................................................................... 9** 

**5A.2.10 Reactance**  **Values**

**.................................................................................................. 9** 

**5A.2.11 Winding**  **Information**

**.......................................................................................... 10** 

**5A.2.12 Magnetic**  **Circuit Data** 

**......................................................................................... 11** 

**5A.3 CAPACITOR­START**  **INDUCTION­RUN 1⁄2**  **HP, 4**  **POLE, 48**  **FRAME MOTOR** 

**....... 12** 

**5A.3.1 Stator**  **Dimensions**

**............................................................................................... 12** 

**5A.3.2 Rotor**  **Dimensions**

**............................................................................................... 12** 

**5A.3.3 Rotor**  **Slot Dimensions** 

**........................................................................................ 12** 

**5A.3.4 Ring**  **and Coil**  **Data**

**.............................................................................................. 13** 

**5A.3.5 Electrical**  **Data**

**..................................................................................................... 13** 

**5A.3.6 Load**  **Speed and**  **Slip Information** 

**....................................................................... 13** 

**5A.3.7 No**  **Load Performance** 

**......................................................................................... 14** 

**5A.3.8 Locked**  **Rotor Data** 

**.............................................................................................. 14** 

**5A.3.9 Breakdown**  **Parameters**

**....................................................................................... 14** 

**5A.3.10 Reactance**  **Values**

**................................................................................................ 14** 

**5A.3.11 Winding**  **Information**

**.......................................................................................... 15** 

**5A.3.12 Magnetic**  **Circuit Data** 

**......................................................................................... 16** 

**5A.4 CAPACITOR­START**  **cAPACITOR­RUN 3⁄4**  **HP, 4**  **POLE, 56**  **FRAME MOTOR** 

**........ 17** 

**5A­1 5A.4.1**  **Stator Dimensions** 

**............................................................................................... 17** 

**5A.4.2 Rotor**  **Dimensions**

**............................................................................................... 17** 

**5A.4.3 Rotors**  **Slot Dimensions** 

**...................................................................................... 17** 

**5A.4.4 Ring**  **and Coil**  **Data**

**.............................................................................................. 18** 

**5A.4.5 Electrical**  **Data**

**..................................................................................................... 18** 

**5A.4.6 Load**  **Speed and**  **Slip Information** 

**....................................................................... 18** 

**5A.4.7 No**  **Load Performance** 

**......................................................................................... 19** 

**5A.4.8 Locked**  **Rotor Data** 

**.............................................................................................. 19** 

**5A.4.9 Breakdown**  **Load Parameters** 

**.............................................................................. 19** 

**5A.4.10 Reactance**  **Values**

**................................................................................................ 19** 

**5A.4.11 Winding**  **Information**

**.......................................................................................... 20** 

**5A.4.12 Magnetic**  **Circuit Data** 

**......................................................................................... 21** 

**Foreword: This**  **appendix provides**  **design information**  **on one**  **electric motor**  **design from**  **each of** 

**the four**  **representative equipment**  **classes analyzed**  **in the**  **engineering analysis.**  **Information on** 

**the engineering**  **analysis and**  **inputs used**  **to prepare**  **these designs**  **can be**  **found in**  **preliminary**

**TSD chapter**  **5.**

**5A­2 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.1 POLYPHASE, 1 HP, 4 POLE, 56 FRAME MOTOR

5A.1.1 Stator Dimensions

**Lamination Steel**  **Type Armco­M19** 

**Length of**  **the Stator**  **Stack 3.0000**  **inches**

**Stacking Factor**  **of the**  **Stator 0.9800** 

**Stator Slot**  **Insulation Thickness**  **0.0100 inch** 

**Number of**  **Stator Poles**  **4 Poles** 

**Outside Diameter**  **of the**  **Stator 6.1500**  **inches**

**Number of**  **Stator Slots**  **24**

**Inside Diameter**  **of the**  **Stator 2.8710**  **inches**

**Thickness of**  **mid slot**  **separator 0.0000**  **inch**

**Stator Slot**  **Width Next**  **to Gap**  **0.1500 inch** 

**Stator Slot**  **Width at**  **Bottom of**  **Slot 0.3350**  **inch**

**Depth of**  **Main Trapezoidal**  **Part; 1.0000**  **inch**

**Depth of**  **Slot Mouth**  **0.0230 inch** 

**Stator Slot**  **Opening 0.1000**  **inch**

**Depth of**  **Tooth Tip**  **0.0300 inch** 

**Total Depth**  **of Stator**  **Slot 1.0500**  **inches**

5A.1.2 Rotor Dimensions

**Shaft Material**  **Magnetic**

**Outside Diameter**  **of the**  **Rotor 2.8400**  **inches**

**Inside Diameter**  **of the**  **Rotor 0.5000**  **inch**

**Length of**  **the Rotor**  **Stack 3.0000**  **inches**

**Stacking Factor**  **of the**  **Rotor 0.9800** 

5A.1.3 Rotor Slot Dimensions

**Slot Shape**  **Closed Bridge,**  **Trap w/**  **Round Bottom** 

**Depth of**  **Rotor Slot**  **Opening 0.0000**  **inch**

**Width at**  **Top of**  **Rotor Slot**  **0.0500 inch** 

**Width at**  **Bottom of**  **Rotor Slot**  **0.0500 inch** 

**Depth of**  **Main Trapezoidal**  **Part 0.4750**  **inch**

**Depth of**  **Slot Mouth**  **0.0200 inch** 

**Depth of**  **Bridge 0.0200**  **inch**

**Total Depth**  **of Rotor**  **Slot 0.5700**  **inch**

**Number of**  **Rotor Slots**  **36 slots** 

**5A­3 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.1.4 Ring and Coil Data

**Inside Diameter**  **of Ring**  **1 1.5000**  **inches**

**Outside Diameter**  **of Ring**  **1 2.8000**  **inches**

**Axial Thickness**  **at Outside**  **of Ring**  **1 1.1000**  **inches**

**Axial Thickness**  **at Inside**  **of Ring**  **1 1.1000**  **inches**

**Inside Diameter**  **of Ring**  **2 1.7000**  **inches**

**Outside Diameter**  **of Ring**  **2 2.8000**  **inches**

**Axial Thickness**  **at Outside**  **of Ring**  **2 1.1000**  **inches**

**Axial Thickness**  **at Inside**  **of Ring**  **2 1.1000**  **inches**

**Conductivity of**  **the Rotor**  **Bar Material**  **0.5700**

**Conductivity of**  **the End**  **Ring Material**  **0.5700**

5A.1.5 Electrical Data

**Wire Insulation**  **Type Heavy** 

**Terminal Voltage**  **230.00 Volts** 

**Turns per**  **Coil in**  **Slot 1**  **30 Turns** 

**Turns per**  **Coil in**  **Slot 2**  **25 Turns** 

**Winding Wire**  **Size 19.0**  **AWG**

**Freq Line**  **Frequency 60.0**  **Hz**

**Rotor Skew**  **1.50 bars** 

**Winding Operating**  **Temperature 100.00**  **deg C** 

**Friction &**  **Windage Loss**  **at Idle**  **Speed 10.0000**  **Watts**

**Stray Load**  **Loss 1.0**  **%**

**Wire Stretch**  **Factor 1.040** 

5A.1.6 Load Speed and Slip Information

**Load Speed**  **Specified Load**  **Speed 1766.0**  **RPM**

**Minimum Load**  **Speed 0.0**  **RPM**

**Speed Increment**  **5.0 RPM** 

5A.1.7 No Load Performance

**Synchronous Speed**  **1800.0 RPM** 

**Actual No**  **Load Speed**  **1798.9 RPM** 

**Actual No**  **Load Phase**  **Current 3.13**  **Amps**

**No Load**  **Phase Winding**  **Current Density**  **1543.69 Amps/sq.**  **in**

**5A­4 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.1.8 Locked Rotor Data

**Locked Rotor**  **Torque 125.20**  **oz­ft**

**Locked Rotor**  **Phase Current**  **17.499 Amps** 

**Locked Rotor**  **Phase Current**  **Density 8643.95**  **A/sq. in.** 

5A.1.9 Breakdown Load Parameters

**Break Down**  **Speed 1099.4**  **RPM**

**Break Down**  **Torque 177.19**  **oz­ft**

**Break Down**  **Current 13.16**  **Amps**

**Break Down**  **Output Power**  **1729.1 Watts** 

**Break Down**  **Output Power**  **2.3179 Hp** 

**Break Down**  **Efficiency 49.4**  **%**

**Break Down**  **Power Factor**  **66.823**

**Break Down**  **Input Power**  **3502.7 Watts** 

**Phase Current**  **Density at**  **Break Down**  **6499.50 A/sq.**  **in.**

5A.1.10 Reactance Values

**Primary Slot**  **Leakage 1.7643**  **Ohms**

**Secondary Slot**  **Leakage 2.1573**  **Ohms**

**End Leakage**  **0.4189 Ohm** 

**Skew Leakage**  **0.4032 Ohm** 

**Zig Zag**  **Leakage 0.7289**  **Ohm**

**Belt Leakage**  **0.1392 Ohm** 

**Primary Leakage**  **Reactance 3.4544**  **Ohms**

**Rotor Leakage**  **3.4781 Ohms** 

**Magnetizing Reactance**  **39.0054 Ohms** 

**5A­5 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.1.11 Winding Information

**Hot Rotor**  **Resistance 2.6236**  **Ohms**

**Rotor Resistance**  **Ratio 0.3784** 

**Cold Winding**  **Resistance 0.9368** 

**Hot Winding**  **Resistance 1.2071**  **Ohms**

**Winding Distribution**  **Factor 0.848** 

**Total Winding**  **Conductors per**  **Phase 440.00**  **Conductors**

**Effective Winding**  **Conductors per**  **Phase 373.2**  **Conductors**

**Slot 1**  **% Fill**  **34.21 %** 

**Slot 2**  **% Fill**  **28.51 %** 

**Slot 3**  **% Fill**  **0.00 %** 

**Slot 4**  **% Fill**  **0.00 %** 

**Slot 5**  **% Fill**  **0.00 %** 

**Slot 6**  **% Fill**  **0.00 %** 

**Slot 7**  **% Fill**  **0.00 %** 

**Slot 8**  **% Fill**  **0.00 %** 

**Total Weight**  **of the**  **Copper 5.4817**  **lbs**

**Electrical Area**  **of One**  **Rotor Bar**  **0.0247 sq.**  **in.**

**Electrical Area**  **of All**  **Rotor Bars**  **0.8903 sq.**  **in.**

**Weight of**  **Stator Steel**  **0.0000 lbs** 

**Weight of**  **Rotor Steel**  **0.0000 lbs** 

**Weight of**  **Stator and**  **Rotor Steel**  **0.0000 lbs** 

**Weight of**  **Rotor Aluminum**  **1.1742 lbs** 

5A.1.12 Magnetic Circuit Data

**Magnetic Length**  **of Air**  **Gap 0.0190**  **inch**

**Total Air**  **Gap Flux**  **per Pole**  **239.4 kilolines** 

**Flux Density**  **in Air**  **Gap 51.5**  **Klines/in^2**

**Flux Density**  **in Stator**  **Yoke 65.4**  **Klines/in^2**

**Flux Density**  **in Stator**  **Teeth 80.4**  **Klines/in^2**

**Flux Density**  **in Rotor**  **Yoke 60.8**  **Klines/in^2**

**Flux Density**  **in Rotor**  **Teeth 95.2**  **Klines/in^2**

**MMF Drop**  **in Air**  **Gap 306.8**  **A­T**

**MMF Drop**  **in Stator**  **Yoke 3.8**  **A­T**

**MMF Drop**  **in Rotor**  **Yoke 0.7**  **A­T**

**MMF Drop**  **in Stator**  **Teeth 6.7**  **A­T**

**MMF Drop**  **in Rotor**  **Teeth 25.1**  **A­T**

**Total MMF**  **Drop 343.1**  **A­T**

**5A­6 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.2 CAPACITOR­START INDUCTION­RUN 1⁄2 HP, 4 POLE, 56 FRAME MOTOR

5A.2.1 Stator Dimensions

**Lamination Steel**  **Type Armco­M19** 

**Length of**  **the Stator**  **Stack 2.6000**  **inches**

**Stacking Factor**  **of the**  **Stator 0.9800** 

**Stator Slot**  **Insulation Thickness**  **0.0100 inch** 

**Number of**  **Stator Poles**  **4 Poles** 

**Outside Diameter**  **of the**  **Stator 6.1500**  **inches**

**Number of**  **Stator Slots**  **24**

**Inside Diameter**  **of the**  **Stator 2.8710**  **inches**

**Thickness of**  **mid slot**  **separator 0.0000**  **inch**

**Stator Slot**  **Width Next**  **to Gap**  **0.1500 inch** 

**Stator Slot**  **Width at**  **Bottom of**  **Slot 0.3350**  **inch**

**Depth of**  **Main Trapezoidal**  **Part; 1.0000**  **inch**

**Depth of**  **Slot Mouth**  **0.0230 inch** 

**Stator Slot**  **Opening 0.1000**  **inch**

**Depth of**  **Tooth Tip**  **0.0300 inch** 

**Total Depth**  **of Stator**  **Slot 1.0500**  **inches**

5A.2.2 Rotor Dimensions

**Shaft Material**  **Magnetic**

**Outside Diameter**  **of the**  **Rotor 2.8400**  **inches**

**Inside Diameter**  **of the**  **Rotor 0.5000**  **inch**

**Length of**  **the Rotor**  **Stack 2.6000**  **inches**

**Stacking Factor**  **of the**  **Rotor 0.9800** 

5A.2.3 Rotor Slot Dimensions

**Slot Shape**  **Closed Bridge,**  **Trap w/**  **Round Bottom** 

**Depth of**  **Rotor Slot**  **Opening 0.0000**  **inch**

**Width at**  **Top of**  **Rotor Slot**  **0.1000 inch** 

**Width at**  **Bottom of**  **Rotor Slot**  **0.0500 inch** 

**Depth of**  **Main Trapezoidal**  **Part 0.2750**  **inch**

**Depth of**  **Slot Mouth**  **0.0500 inch** 

**Depth of**  **Bridge 0.0200**  **inch**

**Total Depth**  **of Rotor**  **Slot 0.3700**  **inch**

**Number of**  **Rotor Slots**  **36 slots** 

**5A­7 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.2.4 Ring and Coil Data

**Inside Diameter**  **of Ring**  **1 1.7000**  **inches**

**Outside Diameter**  **of Ring**  **1 2.8000**  **inches**

**Axial Thickness**  **at Outside**  **of Ring**  **1 1.1000**  **inches**

**Axial Thickness**  **at Inside**  **of Ring**  **1 1.1000**  **inches**

**Inside Diameter**  **of Ring**  **2 1.7000**  **inches**

**Outside Diameter**  **of Ring**  **2 2.8000**  **inches**

**Axial Thickness**  **at Outside**  **of Ring**  **2 1.1000**  **inches**

**Axial Thickness**  **at Inside**  **of Ring**  **2 1.1000**  **inches**

**Conductivity of**  **the Rotor**  **Bar Material**  **0.5700**

**Conductivity of**  **the End**  **Ring Material**  **0.5700**

5A.2.5 Electrical Data

**Wire Insulation**  **Type Heavy** 

**Terminal Voltage**  **115.00 Volts** 

**Turns per**  **Coil in**  **Main Slot**  **1 65**  **Turns**

**Turns per**  **Coil in**  **Main Slot**  **2 49**  **Turns**

**Main Winding**  **Wire Size**  **19.0 AWG** 

**Turns per**  **Coil in**  **Aux. Slot**  **1 52**  **Turns**

**Turns per**  **Coil in**  **Aux. Slot**  **2 37**  **Turns**

**Auxiliary Wire**  **Size 19.5**  **AWG**

**Running Capacitance**  **0.0000 mfd** 

**Starting Capacitance**  **300.0000 mfd** 

**Line Frequency**  **60.0 Hz** 

**Rotor Skew**  **1.50 bar** 

**Winding Operating**  **Temperature 90.00**  **deg C** 

**Friction &**  **Windage Loss**  **at Idle**  **Speed 10.0000**  **Watts**

**Stray Load**  **Loss 1.0**  **%**

**Wire Stretch**  **Factor 1.040** 

5A.2.6 Load Speed and Slip Information

**Specified Load**  **Speed 1727.0**  **RPM**

**Minimum Load**  **Speed 0.0**  **RPM**

**Speed Increment**  **5.0 RPM** 

**5A­8 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.2.7 No Load Performance

**Synchronous Speed**  **1800.0 RPM** 

**Actual No**  **Load Speed**  **1796.4 RPM** 

**Actual No**  **Load Line**  **Current 6.83**  **Amps**

**No Load**  **Main Winding**  **Current Density**  **1686.68 Amps/sq.**  **in**

**No Load**  **Aux. Winding**  **Current Density**  **0.00 Amps/sq.**  **in**

5A.2.8 Locked Rotor Data

**Locked Rotor**  **Torque 87.08**  **oz­ft**

**Locked Rotor**  **Line Current**  **37.500 Amps** 

**Locked Rotor**  **Main Current**  **Density 6579.06**  **A/sq. in.** 

**Locked Rotor**  **Aux. Current**  **Density 17444.66**  **A/sq. in.** 

5A.2.9 Breakdown Parameters

**Break Down**  **Speed 1479.6**  **RPM**

**Break Down**  **Torque 59.27**  **oz­ft**

**Break Down**  **Current 18.16**  **Amps**

**Break Down**  **Output Power**  **778.4 Watts** 

**Break Down**  **Output Power**  **1.0434 Hp** 

**Break Down**  **Efficiency 55.7**  **%**

**Break Down**  **Power Factor**  **0.666**

**Break Down**  **Input Power**  **1397.3 Watts** 

**Main Current**  **Density at**  **Break Down**  **4484.81 A/sq.**  **in.**

**Aux. Current**  **Density at**  **Break Down**  **0.00 A/sq.**  **in.**

5A.2.10 Reactance Values

**Primary Slot**  **Leakage 1.1444**  **Ohms**

**Secondary Slot**  **Leakage 0.7143**  **Ohm**

**End Leakage**  **0.3083 Ohm** 

**Skew Leakage**  **0.6312 Ohm** 

**Zig Zag**  **Leakage 0.9370**  **Ohm**

**Belt Leakage**  **0.1956 Ohm** 

**Main Winding**  **Leakage Reactance**  **2.3346 Ohms** 

**Rotor Leakage**  **Referred to**  **Main 1.5962**  **Ohms**

**Auxiliary Winding**  **Leakage Reactance**  **5.7896 Ohms** 

**Magnetizing Reactance**  **of Main**  **Winding 27.4071**  **Ohms**

**5A­9 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.2.11 Winding Information

**Hot Rotor**  **Resistance 1.3986**  **Ohms**

**Rotor Resistance**  **Ratio 0.3558** 

**Cold Auxiliary**  **Resistance 3.3111**  **inches**

**Cold Main**  **Winding Resistance**  **0.4737**

**Hot Main**  **Winding Resistance**  **0.5922 Ohm** 

**Hot Aux.**  **Winding Resistance**  **4.1392 Ohms** 

**Main Winding**  **Distribution Factor**  **0.855**

**Aux. Winding**  **Distribution Factor**  **0.858**

**Total Main**  **Winding Conductors**  **456.00 Conductors** 

**Total Aux.**  **Winding Conductors**  **712.00 Conductors** 

**Effective Main**  **Winding Conductors**  **389.7 Conductors** 

**Effective Aux.**  **Winding Conductors**  **611.1 Conductors** 

**Turns Ratio**  **1.57**

**Slot 1**  **% Fill**  **74.12 %** 

**Slot 2**  **% Fill**  **74.95 %** 

**Slot 3**  **% Fill**  **26.80 %** 

**Slot 4**  **% Fill**  **0.00 %** 

**Slot 5**  **% Fill**  **0.00 %** 

**Slot 6**  **% Fill**  **0.00 %** 

**Slot 7**  **% Fill**  **0.00 %** 

**Slot 8**  **% Fill**  **0.00 %** 

**Total Weight**  **of the**  **Main Winding**  **3.7776 lbs** 

**Total Weight**  **of the**  **Aux. Winding**  **1.3276 lbs** 

**Electrical Area**  **of One**  **Rotor Bar**  **0.0256 sq.**  **in.**

**Electrical Area**  **of All**  **Rotor Bars**  **0.9225 sq.**  **in.**

**Weight of**  **Stator Steel**  **11.9719 lbs** 

**Weight of**  **Rotor Steel**  **3.8538 lbs** 

**Weight of**  **Stator and**  **Rotor Steel**  **15.8257 lbs** 

**Weight of**  **Rotor Aluminum**  **1.0910 lbs** 

**5A­10 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.2.12 Magnetic Circuit Data

**Magnetic Length**  **of Air**  **Gap 0.0182**  **inch**

**Total Air**  **Gap Flux**  **per Pole**  **214.7 kilolines** 

**Flux Density**  **in Air**  **Gap 47.856**  **KLines/in^2**

**Flux Density**  **in Stator**  **Yoke 67.615**  **KLines/in^2**

**Flux Density**  **in Stator**  **Teeth 83.141**  **KLines/in^2**

**Flux Density**  **in Rotor**  **Yoke 43.304**  **KLines/in^2**

**Flux Density**  **in Rotor**  **Teeth 89.285**  **KLines/in^2**

**MMF Drop**  **in Air**  **Gap 273.1**  **A­T**

**MMF Drop**  **in Stator**  **Yoke 4.2**  **A­T**

**MMF Drop**  **in Rotor**  **Yoke 0.6**  **A­T**

**MMF Drop**  **in Statot**  **Teeth 9.0**  **A­T**

**MMF Drop**  **in Rotor**  **Teeth 4.8**  **A­T**

**Total MMF**  **Drop 291.7**  **A­T**

**5A­11 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.3 CAPACITOR­START INDUCTION­RUN 1⁄2 HP, 4 POLE, 48 FRAME MOTOR

5A.3.1 Stator Dimensions

**Lamination Steel**  **Type M**  **19**

**Length of**  **the Stator**  **Stack 3.0000**  **inches**

**Stacking Factor**  **of the**  **Stator 0.9800** 

**Stator Slot**  **Insulation Thickness**  **0.0100 inches** 

**Number of**  **Stator Poles**  **4 Poles** 

**Outside Diameter**  **of the**  **Stator 5.2390**  **inches**

**Number of**  **Stator Slots**  **24**

**Inside Diameter**  **of the**  **Stator 2.7450**  **inches**

**Thickness of**  **mid slot**  **separator 0.0000**  **inch**

**Stator Slot**  **Width Next**  **to Gap**  **0.1500 inch** 

**Stator Slot**  **Width at**  **Bottom of**  **Slot 0.3300**  **inch**

**Depth of**  **Main Trapezoidal**  **Part; 0.7150**  **inch**

**Depth of**  **Slot Mouth**  **0.0200 inch** 

**Stator Slot**  **Opening 0.1000**  **inch**

**Depth of**  **Tooth Tip**  **0.0300 inch** 

**Total Depth**  **of Stator**  **Slot 0.7750**  **inch**

5A.3.2 Rotor Dimensions

**Shaft Material**  **Magnetic**

**Outside Diameter**  **of the**  **Rotor 2.7150**  **inches**

**Inside Diameter**  **of the**  **Rotor 0.7350**  **inch**

**Length of**  **the Rotor**  **Stack 3.0000**  **inches**

**Stacking Factor**  **of the**  **Rotor 0.9800** 

5A.3.3 Rotor Slot Dimensions

**Slot Shape**  **Closed Bridge,**  **Trap w/**  **Round Bottom** 

**Depth of**  **Rotor Slot**  **Opening 0.0000**  **inch**

**Width at**  **Top of**  **Rotor Slot**  **0.1060 inch** 

**Width at**  **Bottom of**  **Rotor Slot**  **0.0580 inch** 

**Depth of**  **Main Trapezoidal**  **Part 0.3400**  **inch**

**Depth of**  **Slot Mouth**  **0.0500 inch** 

**Depth of**  **Bridge 0.0300**  **inch**

**Total Depth**  **of Rotor**  **Slot 0.3950**  **inch**

**Number of**  **Rotor Slots**  **36 slots** 

**5A­12 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.3.4 Ring and Coil Data

**Inside Diameter**  **of Ring**  **1 1.6150**  **inches**

**Outside Diameter**  **of Ring**  **1 2.5500**  **inches**

**Axial Thickness**  **at Outside**  **of Ring**  **1 0.7500**  **inch**

**Axial Thickness**  **at Inside**  **of Ring**  **1 0.7500**  **inch**

**Inside Diameter**  **of Ring**  **2 1.6150**  **inches**

**Outside Diameter**  **of Ring**  **2 2.5600**  **inches**

**Axial Thickness**  **at Outside**  **of Ring**  **2 0.3150**  **inch**

**Axial Thickness**  **at Inside**  **of Ring**  **2 0.3150**  **inch**

**Conductivity of**  **the Rotor**  **Bar Material**  **0.5700**

**Conductivity of**  **the End**  **Ring Material**  **0.5700**

5A.3.5 Electrical Data

**Wire Insulation**  **Type Heavy** 

**Terminal Voltage**  **115.00 Volts** 

**Turns per**  **Coil in**  **Main Slot**  **1 65**  **Turns**

**Turns per**  **Coil in**  **Main Slot**  **2 46**  **Turns**

**Main Winding**  **Wire Size**  **20.5 AWG** 

**Turns per**  **Coil in**  **Aux. Slot**  **1 45**  **Turns**

**Turns per**  **Coil in**  **Aux. Slot**  **2 28**  **Turns**

**Auxiliary Wire**  **Size 20.0**  **AWG**

**Running Capacitance**  **0.0000 mfd** 

**Starting Capacitance**  **300.0000 mfd** 

**Line Frequency**  **60.0 Hz** 

**Rotor Skew**  **1.50 bar** 

**Winding Operating**  **Temperature 100.00**  **deg C** 

**Friction &**  **Windage Loss**  **at Idle**  **Speed 6.0000**  **Watts**

**Stray Load**  **Loss 1.0**  **%**

**Wire Stretch**  **Factor 1.030** 

5A.3.6 Load Speed and Slip Information

**Specified Load**  **Speed 1738.0**  **RPM**

**Minimum Load**  **Speed 0.0**  **RPM**

**Speed Increment**  **5.0 RPM** 

**5A­13 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.3.7 No Load Performance

**Synchronous Speed**  **1800.0 RPM** 

**Actual No**  **Load Speed**  **1796.4 RPM** 

**Actual No**  **Load Line**  **Current 6.78**  **Amps**

**No Load**  **Main Winding**  **Current Density**  **2351.14 Amps/sq.**  **in**

**No Load**  **Aux. Winding**  **Current Density**  **0.00 Amps/sq.**  **in**

5A.3.8 Locked Rotor Data

**Locked Rotor**  **Torque 90.12**  **oz­ft**

**Locked Rotor**  **Line Current**  **34.358 Amps** 

**Locked Rotor**  **Main Current**  **Density 9113.71**  **A/sq. in.** 

**Locked Rotor**  **Aux. Current**  **Density 22469.09**  **A/sq. in.** 

5A.3.9 Breakdown Parameters

**Break Down**  **Speed 1501.2**  **RPM**

**Break Down**  **Torque 57.45**  **oz­ft**

**Break Down**  **Current 17.71**  **Amps**

**Break Down**  **Output Power**  **765.5 Watts** 

**Break Down**  **Output Power**  **1.0261 Hp** 

**Break Down**  **Efficiency 54.4**  **%**

**Break Down**  **Power Factor**  **0.687**

**Break Down**  **Input Power**  **1405.9 Watts** 

**Main Current**  **Density at**  **Break Down**  **6141.36 A/sq.**  **in.**

**Aux. Current**  **Density at**  **Break Down**  **0.00 A/sq.**  **in.**

5A.3.10 Reactance Values

**Primary Slot**  **Leakage 0.9866**  **Ohm**

**Secondary Slot**  **Leakage 0.8400**  **Ohm**

**End Leakage**  **0.2670 Ohm** 

**Skew Leakage**  **0.6397 Ohm** 

**Zig Zag**  **Leakage 1.0043**  **Ohms**

**Belt Leakage**  **0.1982 Ohm** 

**Main Winding**  **Leakage Reactance**  **2.1747 Ohms** 

**Rotor Leakage**  **Referred to**  **Main 1.7610**  **Ohms**

**Auxiliary Winding**  **Leakage Reactance**  **3.9043 Ohms** 

**Magnetizing Reactance**  **of Main**  **Winding 27.7764**  **Ohms**

**5A­14 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.3.11 Winding Information

**Hot Rotor**  **Resistance 1.3256**  **Ohms**

**Rotor Resistance**  **Ratio 0.3368** 

**Cold Auxiliary**  **Resistance 3.0958**  **inches**

**Cold Main**  **Winding Resistance**  **0.6515**

**Hot Main**  **Winding Resistance**  **0.8396 Ohm** 

**Hot Aux.**  **Winding Resistance**  **3.9892 Ohms** 

**Main Winding**  **Distribution Factor**  **0.859**

**Aux. Winding**  **Distribution Factor**  **0.867**

**Total Main**  **Winding Conductors**  **444.00 Conductors** 

**Aux. Winding**  **Conductors 584.00**  **Conductors**

**Effective Main**  **Winding Conductors**  **381.2 Conductors** 

**Effective Aux.**  **Winding Conductors**  **506.1 Conductors** 

**Turns Ratio**  **1.33**

**Slot 1**  **% Fill**  **72.20 %** 

**Slot 2**  **% Fill**  **68.30 %** 

**Slot 3**  **% Fill**  **27.64 %** 

**Slot 4**  **% Fill**  **0.00 %** 

**Slot 5**  **% Fill**  **0.00 %** 

**Slot 6**  **% Fill**  **0.00 %** 

**Slot 7**  **% Fill**  **0.00 %** 

**Slot 8**  **% Fill**  **0.00 %** 

**Total Weight**  **of the**  **Main Winding**  **2.6364 lbs** 

**Total Weight**  **of the**  **Aux. Winding**  **0.9740 lb** 

**Electrical Area**  **of One**  **Rotor Bar**  **0.0332 sq.**  **in.**

**Electrical Area**  **of All**  **Rotor Bars**  **1.1945 sq.**  **in.**

**Weight of**  **Stator Steel**  **8.8286 lbs** 

**Weight of**  **Rotor Steel**  **3.5400 lbs** 

**Weight of**  **Stator and**  **Rotor Steel**  **12.3686 lbs** 

**Weight of**  **Rotor Aluminum**  **0.6880 lb** 

**5A­15 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.3.12 Magnetic Circuit Data

**Magnetic Length**  **of Air**  **Gap 0.0178**  **inch**

**Total Air**  **Gap Flux**  **per Pole**  **219.4 kilolines** 

**Flux Density**  **in Air**  **Gap 44.5**  **Klines/in^2**

**Flux Density**  **in Stator**  **Yoke 73.9**  **Klines/in^2**

**Flux Density**  **in Stator**  **Teeth 86.9**  **Klines/in^2**

**Flux Density**  **in Rotor**  **Yoke 51.6**  **Klines/in^2**

**Flux Density**  **in Rotor**  **Teeth 98.9**  **Klines/in^2**

**MMF Drop**  **in Air**  **Gap 248.6**  **A­T**

**MMF Drop**  **in Stator**  **Yoke 7.2**  **A­T**

**MMF Drop**  **in Rotor**  **Yoke 0.6**  **A­T**

**MMF Drop**  **in Statot**  **Teeth 6.9**  **A­T**

**MMF Drop**  **in Rotor**  **Teeth 19.4**  **A­T**

**Total MMF**  **Drop 282.7**  **A­T**

**5A­16 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.4 CAPACITOR­START CAPACITOR­RUN 3⁄4 HP, 4 POLE, 56 FRAME MOTOR

5A.4.1 Stator Dimensions

**Lamination Steel**  **Type M**  **19**

**Length of**  **the Stator**  **Stack 3.1000**  **inches**

**Stacking Factor**  **of the**  **Stator 0.9800** 

**Stator Slot**  **Insulation Thickness**  **0.0100 inch** 

**Number of**  **Stator Poles**  **4 Poles** 

**Outside Diameter**  **of the**  **Stator 6.1500**  **inches**

**Number of**  **Stator Slots**  **24**

**Inside Diameter**  **of the**  **Stator 2.8710**  **inches**

**Thickness of**  **mid slot**  **separator 0.0000**  **inch**

**Stator Slot**  **Width Next**  **to Gap**  **0.1500 inch** 

**Stator Slot**  **Width at**  **Bottom of**  **Slot 0.3350**  **inch**

**Depth of**  **Main Trapezoidal**  **Part; 1.0000**  **inch**

**Depth of**  **Slot Mouth**  **0.0230 inch** 

**Stator Slot**  **Opening 0.1000**  **inch**

**Depth of**  **Tooth Tip**  **0.0300 inch** 

**Total Depth**  **of Stator**  **Slot 1.0500**  **inches**

5A.4.2 Rotor Dimensions

**Shaft Material**  **Magnetic**

**Outside Diameter**  **of the**  **Rotor 2.8400**  **inches**

**Inside Diameter**  **of the**  **Rotor 0.5000**  **inch**

**Length of**  **the Rotor**  **Stack 3.1000**  **inches**

**Stacking Factor**  **of the**  **Rotor 0.9800** 

5A.4.3 Rotors Slot Dimensions

**Slot Shape**  **Closed Bridge,**  **Trap w/**  **Round Bottom** 

**Depth of**  **Rotor Slot**  **Opening 0.0000**  **inch**

**Width at**  **Top of**  **Rotor Slot**  **0.1000 inch** 

**Width at**  **Bottom of**  **Rotor Slot**  **0.0500 inch** 

**Depth of**  **Main Trapezoidal**  **Part 0.2750**  **inch**

**Depth of**  **Slot Mouth**  **0.0500 inch** 

**Depth of**  **Bridge 0.0200**  **inch**

**Total Depth**  **of Rotor**  **Slot 0.3700**  **inch**

**Number of**  **Rotor Slots**  **36 slots** 

**5A­17 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.4.4 Ring and Coil Data

**Inside Diameter**  **of Ring**  **1 1.7000**  **inches**

**Outside Diameter**  **of Ring**  **1 2.8000**  **inches**

**Axial Thickness**  **at Outside**  **of Ring**  **1 1.1000**  **inches**

**Axial Thickness**  **at Inside**  **of Ring**  **1 1.1000**  **inches**

**Inside Diameter**  **of Ring**  **2 1.7000**  **inches**

**Outside Diameter**  **of Ring**  **2 2.8000**  **inches**

**Axial Thickness**  **at Outside**  **of Ring**  **2 1.1000**  **inches**

**Axial Thickness**  **at Inside**  **of Ring**  **2 1.1000**  **inches**

**Conductivity of**  **the Rotor**  **Bar Material**  **0.5700**

**Conductivity of**  **the End**  **Ring Material**  **0.5700**

5A.4.5 Electrical Data

**Wire Insulation**  **Type Heavy** 

**Terminal Voltage**  **115.00 Volts** 

**Turns per**  **Coil in**  **Main Slot**  **1 54**  **Turns**

**Turns per**  **Coil in**  **Main Slot**  **2 39**  **Turns**

**Main Winding**  **Wire Size**  **19.0 AWG** 

**Turns per**  **Coil in**  **Aux. Slot**  **1 30**  **Turns**

**Turns per**  **Coil in**  **Aux. Slot**  **2 25**  **Turns**

**Auxiliary Wire**  **Size 21.5**  **AWG**

**Running Capacitance**  **50.0000 mfd** 

**Starting Capacitance**  **400.0000 mfd** 

**Line Frequency**  **60.0 Hz** 

**Rotor Skew**  **1.50 bar** 

**Winding Operating**  **Temperature 100.00**  **deg C** 

**Friction &**  **Windage Loss**  **at Idle**  **Speed 10.0000**  **Watts**

**Stray Load**  **Loss 1.0**  **%**

**Wire Stretch**  **Factor 1.040** 

5A.4.6 Load Speed and Slip Information

**Specified Load**  **Speed 1735.0**  **RPM**

**Minimum Load**  **Speed 0.0**  **RPM**

**Speed Increment**  **10.0 RPM** 

**5A­18 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­**

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.4.7 No Load Performance

**Synchronous Speed**  **1800.0 RPM** 

**Actual No**  **Load Speed**  **1796.4 RPM** 

**Actual No**  **Load Line**  **Current 4.28**  **Amps**

**No Load**  **Main Winding**  **Current Density**  **1682.56 A/sq.**  **in.**

**No Load**  **Aux. Winding**  **Current Density**  **3028.11 A/sq.**  **in.**

5A.4.8 Locked Rotor Data

**Locked Rotor**  **Torque 126.70**  **oz­ft**

**Locked Rotor**  **Line Current**  **39.677 Amps** 

**Locked Rotor**  **Main Current**  **Density 8255.61**  **A/sq. in.** 

**Locked Rotor**  **Aux. Current**  **Density 22881.65**  **A/sq. in.** 

5A.4.9 Breakdown Load Parameters

**Break Down**  **Speed 1486.8**  **RPM**

**Break Down**  **Torque 85.83**  **oz­ft**

**Break Down**  **Current 21.08**  **Amps**

**Break Down**  **Output Power**  **1132.7 Watts** 

**Break Down**  **Output Power**  **1.5183 Hp** 

**Break Down**  **Efficiency 61.2**  **%**

**Break Down**  **Power Factor**  **0.763**

**Break Down**  **Input Power**  **1849.7 Watts** 

**Main Current**  **Density at**  **Break Down**  **5216.63 A/sq.**  **in.**

**Aux. Current**  **Density at**  **Break Down**  **1809.46 A/sq.**  **in.**

5A.4.10 Reactance Values

**Primary Slot**  **Leakage 0.9137**  **Ohm**

**Secondary Slot**  **Leakage 0.5704**  **Ohm**

**End Leakage**  **0.2075 Ohm** 

**Skew Leakage**  **0.4944 Ohm** 

**Zig Zag**  **Leakage 0.7483**  **Ohm**

**Belt Leakage**  **0.1532 Ohm** 

**Main Winding**  **Leakage Reactance**  **1.8192 Ohms** 

**Rotor Leakage**  **Referred to**  **Main 1.2683**  **Ohms**

**Auxiliary Winding**  **Leakage Reactance**  **2.4386 Ohms** 

**Magnetizing Reactance**  **of Main**  **Winding 21.4686**  **Ohms**

**5A­19 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.4.11 Winding Information

**Hot Rotor**  **Resistance 1.1392**  **Ohms**

**Rotor Resistance**  **Ratio 0.3690** 

**Cold Auxiliary**  **Resistance 1.7571**  **inches**

**Cold Main**  **Winding Resistance**  **0.4207**

**Hot Main**  **Winding Resistance**  **0.5421 Ohm** 

**Hot Aux.**  **Winding Resistance**  **2.2642 Ohms** 

**Main Winding**  **Distribution Factor**  **0.857**

**Aux. Winding**  **Distribution Factor**  **0.848**

**Total Main**  **Winding Conductors**  **372.00 Conductors** 

**Total Aux.**  **Winding Conductors**  **440.00 Conductors** 

**Effective Main**  **Winding Conductors**  **318.9 Conductors** 

**Effective Aux.**  **Winding Conductors**  **373.2 Conductors** 

**Turns Ratio**  **1.17**

**Slot 1**  **% Fill**  **61.58 %** 

**Slot 2**  **% Fill**  **61.01 %** 

**Slot 3**  **% Fill**  **19.85 %** 

**Slot 4**  **% Fill**  **0.00 %** 

**Slot 5**  **% Fill**  **0.00 %** 

**Slot 6**  **% Fill**  **0.00 %** 

**Slot 7**  **% Fill**  **0.00 %** 

**Slot 8**  **% Fill**  **0.00 %** 

**Total Weight**  **of the**  **Main Winding**  **3.3546 lbs** 

**Total Weight**  **of the**  **Aux. Winding**  **1.1042 lbs** 

**Electrical Area**  **of One**  **Rotor Bar**  **0.0256 sq.**  **in.**

**Electrical Area**  **of All**  **Rotor Bars**  **0.9225 sq.**  **in.**

**Weight of**  **Stator Steel**  **14.2742 lbs** 

**Weight of**  **Rotor Steel**  **4.5949 lbs** 

**Weight of**  **Stator and**  **Rotor Steel**  **18.8691 lbs** 

**Weight of**  **Rotor Aluminum**  **1.1368 lbs** 

**5A­20 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 

**­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­** 5A.4.12 Magnetic Circuit Data

**Magnetic Length**  **of Air**  **Gap 0.0182**  **inch**

**Total Air**  **Gap Flux**  **per Pole**  **262.3 kilolines** 

**Flux Density**  **in Air**  **Gap 50.6**  **Klines/in^2**

**Flux Density**  **in Stator**  **Yoke 69.3**  **Klines/in^2**

**Flux Density**  **in Stator**  **Teeth 85.2**  **Klines/in^2**

**Flux Density**  **in Rotor**  **Yoke 45.7**  **Klines/in^2**

**Flux Density**  **in Rotor**  **Teeth 94.3**  **Klines/in^2**

**MMF Drop**  **in Air**  **Gap 288.5**  **A­T**

**MMF Drop**  **in Stator**  **Yoke 6.6**  **A­T**

**MMF Drop**  **in Rotor**  **Yoke 0.5**  **A­T**

**MMF Drop**  **in Statot**  **Teeth 9.1**  **A­T**

**MMF Drop**  **in Rotor**  **Teeth 9.4**  **A­T**

**Total MMF**  **Drop 314.1**  **A­T**

**5A­21**