1 / 48

Who is Stellar Tech?

Stellar Tech Energy Services is a wholly owned Canadian company Manufacturer of WellMax Datalogger / Controller Specializing in the integration and distribution of VFD’s and motors . Strengths in Pumping Systems Oil, Water, and Municipal . Who is Stellar Tech?. Oil & Gas production pumping

duff
Télécharger la présentation

Who is Stellar Tech?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Stellar Tech Energy Services is a wholly owned Canadian company Manufacturer of WellMax Datalogger / Controller Specializing in the integration and distribution of VFD’s and motors . Strengths in Pumping Systems Oil, Water, and Municipal Who is Stellar Tech?

  2. Oil & Gas production pumping Commercial Pumping Municipal Pump Controls Datalogging and Control Work in a Global Market What we do!

  3. Variable frequency drive (VFD) systems design and integrator . Over 15 years experience in drives and automation Thousands of successful installations Complete systems integrator with design, manufacturing, start-up and service capabilities Our Capabilities

  4. WellMax Datalogger Variable Frequency Drives Down hole Pressure / Temperature Recorders Our Products

  5. Our Strengths • All products are manufactured to the highest quality standards • Knowledgeable customer service representatives and technical support groups • Worldwide commitment to customers with sales and service facilities around the globe

  6. WellMax Datalogger / Optimizer / Controller • Designed and engineered for pumping applications to optimize production • Can be used with VFD’s , Hydraulics or Across the line / Motor starter. • Extensive options available • Drive / motor control

  7. WellMax Features • Rod protection • Well OPTIMIZATION • Immediate data storage and retrieval • Fluid level control • Pump off • Multiple communication features and protocols • Trend analysis • Screen for on-site data viewing

  8. Well Conditions WellMax Data Logger and Controller

  9. Equimavenca – Capital Nacional Levantamiento Artificial / Servicio Integral LEVEL AND RPM CONTROL

  10. Pump Off – Complete Overview LEADING UP TO A PUMPOFF CONDITION A–SPEED CHANGE E-BROWN OUTS B-PRESCO FAULT G-PUMPOFF OCCURS C-POWER BUMP D-PRESCO F-PUMPOFF SIGNS

  11. A - Speed Change

  12. B - Presco Fault

  13. C - Presco Fault

  14. D - Power Bump

  15. E – Power Brown Outs

  16. F – Signs of Pump-off or Pump Damage

  17. G – Pump-off occurs

  18. Tubing Leak Significant drop in torque displays tubing leak Torque fluctuations are caused by excess volume of gas

  19. Tubing Leak Significant drop in torque displays tubing leak

  20. Tubing Hair line fracture The increase of RPM caused enough pressure to open up the hair line fracture in the tubing, flow decreased but never completely stopped

  21. Sand Avalanche Pump is full of sand Pump slowly filling with sand

  22. Pump Off Occurs 80 Ft Lbs 75 Ft Lbs Pumped Off Well

  23. Waxing Condition

  24. Parted Rods

  25. WellMax Menu Structure

  26. SUMMARY REPORT

  27. NEMA 3R Panel

  28. VERTICAL NEMA 1 • Unwired 3 Contactor Bypass Package • Showing • Fused Disconnect • Line Reactor • Contactors • O/L

  29. IEEE 519 The total harmonic voltage distortion at any point of common coupling with a nominal voltage of less than 66kV shall not exceed 5%. Point of Common Coupling (PCC): That busbar electrically closest to any consumer through which any current must flow to that consumer and one or more other consumers.

  30. Square Wave Harmonics Content Square wave & Fundamental + 3rd 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 1.0 1.5 0 0.5

  31. A VFD with no input reactor or filter may result in 100% THID or more, measured at the VFD input terminals A 3%Z line reactor will limit THID to 35~ 40% A 5%Z line reactor will limit THID to 30 ~ 35% A 5%Z line reactor & 3%equivalent Z DC reactor will limit THID to 25~30% Tuned 5th harmonic trap will limit THID to 20 ~ 25% 12 pulse phase shifting will reduce THID to a minimum of 12% @ full load 18 pulse phase shifting will reduce THID to a minimum of 5% @ full load Matrix wide spectrum filter limits THID to 8% or 5% at full load Types of Harmonic Filters

  32. Reducing Harmonics • Ensure a low network Impedance • Distribute harmonic generating loads • Use AC line or DC link reactors • Install Harmonic filters

  33. Reflected Wave Theory Waveform Analysis with output reactors & filters Long Motor Leads Drive Solutions Motor Solutions Motor Inverter Compatibility Topics

  34. Mismatch between surge impedance of: Drive-to-motor cable & Motor winding Cable surge impedance fairly constant through hp range Motor surge impedance inversely proportional to hp 2 per unit voltage evident on motors up to 500 hp Motor terminal voltage doubling on leads over 15 feet Reflected Wave Theory

  35. PWM Waveform 1.0 -1.0 Full Voltage, 60 Hz PWM Waveform 1.0 -1.0 Half Voltage, 30 Hz PWM Waveform

  36. VFD Output & Motor Terminal Voltage, Reflected Waves

  37. Peak voltage = twice DC Bus voltage at critical cable length and longer. DC bus voltage = AC input voltage * 1.414. e.g. 600 VAC * 1.414 = 850 * 2 =1,700 V Peak. Rise time = 0.015uS to 1uS Depending on IGBT Current Rating Critical cable length = speed of propagation * rise time. e.g. 150meters/uS * 0.03uS = 4.5 meters IGBT VFD, Motor Terminal Peak Voltage & Rise Time Characteristics

  38. IGBT VFD, Motor Terminal Voltage, 10 HP, 460 Volt, 6 KHz Carrier Frequency, 60 Hz Output Frequency, No Load Reactor, 10 Feet of Cable, Peak Voltage 1,200 Volts, Rise Time .03uS

  39. IGBT VFD, Motor Terminal Voltage, 10 HP, 460 Volt, 6 KHz Carrier Frequency, 60 Hz, 3%Z Load Reactor, 10 Feet of Cable, Peak Voltage 820 Volts, Rise Time 2uS

  40. IGBT VFD, Motor Terminal Voltage, 10 HP, 460 Volt, 6 KHz Carrier Frequency, 60 Hz Output Frequency, Sine Wave Output Filter, 10 Feet of Cable, RMS Voltage 460 VAC, No Spikes

  41. IGBT VFD, Motor Terminal Voltage, 10 HP, 460 Volt, 6 KHz Carrier Frequency, 60 Hz Output Frequency, No Load Reactor, 250 Feet of Cable, Peak Voltage 1380, Rise Time .05uS

  42. IGBT VFD, Motor Terminal Voltage, 10 HP, 460 Volt, 6 KHz Carrier Frequency, 60 Hz Output Frequency, 3%Z Load Reactor, 250 Feet of Cable, Peak Voltage 1,000 Volts, Rise Time 10uS

  43. IGBT VFD, Motor Terminal Voltage, 10 HP, 460 Volt, 6 KHz Carrier Frequency, 60 Hz Output Frequency, Sine Wave Output Filter, 250 Feet of Cable, RMS Voltage 460 VAC, No Spike

  44. From critical cable length and longer, motor terminal voltage remains at 2 per unit Time spent at 2 per unit voltage increases with cable length therefore transient energy level much higher Insulation stress much higher proportional to transient energy*carrier frequency Long Cables

  45. MG1 part 30 As a minimum motor insulation must withstand 1000 volt peak @ 2uS rise time MG1 part 31 As a minimum motor insulation must withstand 1600 volt peak @ 0.1uS rise time NEMA Minimum Design Standards For 3 Phase Induction Motors

  46. For NEMA MG1 part 30 Motors No output reactor or filter required for 208/240Volt applications Use output reactor for 460 volt applications Use output dv/dt filters for 575 volt applications Keep motor leads short Keep carrier frequency low Keep motor cool VFD Solutions

  47. For NEMA MG1 part 31 Motors No output reactor or filter required for 208/240 volt applications No reactor or output filter required for 460 volt applications unless cable length is extreme Use output reactor for 575 volt applications Motor Solutions

  48. THANK YOU END OF PRESENTATION

More Related