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HVACR317 – Core for Refrigeration

HVACR317 – Core for Refrigeration. Motor Application Compressor Motors. HERMETIC COMPRESSORS CANNOT BE SERVICED. HERMETIC COMPRESSOR CROSS SECTION. HERMETIC COMPRESSORS MAY HAVE CURRENT RELAYS FOR MOTOR STARTING. CURRENT RELAYS CLOSE ON HIGH AMPS OPEN ON LOW AMPS. MOTOR STARTS.

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HVACR317 – Core for Refrigeration

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  1. HVACR317 – Core for Refrigeration Motor Application Compressor Motors

  2. HERMETIC COMPRESSORS CANNOT BE SERVICED

  3. HERMETIC COMPRESSOR CROSS SECTION

  4. HERMETIC COMPRESSORS MAY HAVE CURRENT RELAYS FOR MOTOR STARTING

  5. CURRENT RELAYS CLOSE ON HIGH AMPS OPEN ON LOW AMPS

  6. MOTOR STARTS MOTOR SPEED INCREASE MOTOR AT SPEED AMPS APPLIED MOTOR CURRENT PROFILE

  7. MOTOR STARTS CURRENT RELAY CUT-OUT MOTOR AT SPEED CURRENT RELAY CUT-IN MOTOR CURRENT PROFILE

  8. AMPS Locked Rotor Amps (LRA) Full Load Amps (FLA) TIME Once the motor is started, the amps level off to FLA (Full Load Amps). 100% CURRENT RELAY CUT-IN CURRENT RELAY CUT-OUT 100% 0% 0% AMPS Speed

  9. HERMETIC COMPRESSOR WIRING with CURRENT RELAYS

  10. HERMETIC COMPRESSOR WITH CAPACITOR

  11. POTENTIAL RELAYS USED TO START ELECTRIC MOTORS

  12. POTENTIAL RELAY APPLICATION

  13. CURRENT FILLS THE START CAPACITOR AT STARTUP POTENTIAL RELAY OPERATION

  14. CURRENT FILLS THE START CAPACITOR AT STARTUP POTENTIAL RELAY OPERATION

  15. CURRENT BY-PASSES THE START CAPACITOR AFTER MOTOR SPEED POTENTIAL RELAY OPERATION

  16. FLUX LINES BUILD ACROSS THE COIL OPENING THE CONTACTS POTENTIAL RELAY OPERATION

  17. HARD START KITS FOR HART-TO-START MOTORS

  18. CAPACITOR START CAPACITOR RUN MOTOR CSCR MOTOR

  19. CURRENT RELAY APPLICATION POTENTIAL RELAY APPLICATION MEASURING CURRENT with a CLAMP-ON AMMETER

  20. CURRENT RELAY APPLICATION MEASURING CURRENT with a CLAMP-ON AMMETER

  21. MEASURING RESISTANCE with a MULTIMETER MOTOR WINDING RESISTANCE CURRENT RELAY COIL RESISTANCE

  22. LEAD POSITIONS RESISTANCE MEASUREMENT R to C LOW RESISTANCE S to C MEDIUM RESISTANCE R to S HIGH RESISTANCE RESISTANCE MEASUREMENTS ACROSS MOTOR WINDINGS

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