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ABB Softstarter Benefits Charnchanok Thongprad

ABB Softstarter Benefits Charnchanok Thongprad. Why Softstarters?. Benefits for the Electrical network. Starting Current. Reduces voltage drops on networks Minimizes starting currents Eliminates current spikes Allows optimization of cabling. Current. Star/Delta. D.O.L. Softstart.

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ABB Softstarter Benefits Charnchanok Thongprad

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  1. ABB Softstarter BenefitsCharnchanok Thongprad

  2. Why Softstarters? Benefits for the Electrical network Starting Current • Reduces voltage drops on networks • Minimizes starting currents • Eliminates current spikes • Allows optimization of cabling Current Star/Delta D.O.L Softstart Speed Minimized inrush current with no transition spikes

  3. Starting Current Of Direct Online

  4. Starting Current Of Star/Delta

  5. Why Softstarters? Mechanical benefits Starting Torque • Minimizes stress on transmissionslike gearboxes, belts and bearings • Reduced water hammering • Minimizes maintenance cost • Reduces down-time Torque D.O.L Star/Delta Softstart Speed Optimized torque What is your actual cost?

  6. About Motor

  7. Motor Characteristic

  8. Motor Torque

  9. Softstarter components

  10. Softstarter Principal function: Anti-parallel connected thyristors Time delay Voltage reduction during start

  11. Peak Line Voltage 680V RMS Line Voltage480V RMS Switched Voltage240V Thyristor turn on delayed until this point in the sine wave. How Softstarters Work • A Thyristor is a high speed one-way “switch” • By switching on “late” the “RMS” or average voltage to the motor is reduced

  12. How Softstarters Work • By using opposing Thyristors, both sides of the sine wave can be controlled

  13. Gate Fire 100% Volts Time How Softstarters Work • By advancing the “Gating” or firing point, we can ramp the voltage up (or down).

  14. T  Ue2 I  Ue T I Ue = 50 % => I = 50 % rpm rpm Ue = 50 % => T(0,52) = 25 % Softstarter

  15. T T rpm rpm Low load High load Medium load I I I rpm rpm rpm Softstarter • Optimal current and torque T rpm

  16. How to select right-match Softstarter. What you have to know before do selection? 1.Motor size 2.Applications 3.Electrical system & connection 4.Ambient temperature 5.Altitude

  17. How to select a softstarter for different applications.

  18. 100 A M 100 A Electrical connection Connections IN - LINE INSIDE DELTA • ABB’s Softstarters can be connected both ways • Down-sizing possible with inside delta • Easy to replace star-delta starter 100 A 100 A 58 A 58 A M 100 A

  19. Ambient temperature

  20. Derating at high altitude

  21. Co-ordination

  22. Motor Starter Coordination Motor starter x Circuit-breaker or fused isolator ( Short circuit, Lock rotor protection ) Contactor ( Motor control, Isolation) Thermal overload relay ( Protection against overload of the motor ) M M Motor

  23. Co-ordination

  24. Co-ordination

  25. Types of protections

  26. T  Ue2 I  Ue T I Ue = 50 % => I = 50 % rpm rpm Ue = 50 % => T(0,52) = 25 % Start / Stop parameter Setting parameter. 1.Initial Voltage 2.Current limit 3.Start ramp 4.Stop ramp (If necessary) 5.Kick start (If necessary)

  27. Starting Parameters

  28. Starting parameters

  29. Starting parameters

  30. Starting current from Fluke 43B • 22 kW,400V • Starting current ; 80 A (56.5 Arms) • Max. st. current ; 310 A (219 Arms, 5*Ie) • Starting time ; 11 Sec

  31. Starting current from Fluke 43B • 22 kW,400V • Starting current ; 80 A (56.5 Arms) • Max. st. current ; 240 A (170 Arms, 3.9*Ie) • Starting time ; 14.4 Sec

  32. Starting current from Fluke 43B • 22 kW,400V • Starting current ; 80 A(56.5 Arms) • Max. st. current ; 200 A (140 Arms, 3.2*Ie) • Starting time ; 17.5 Sec

  33. The Advanced range – PST30…PSTB1050 Kick start • Gives an extra boost in the start • Good when having high load torques in the first part of the start. • Jammed pumps can be started Possible to set both level and duration 0,1 …1,5 Sec U 50 … 100% Set initial voltage Uini Time Normal ramp Ramp with kick start

  34. The Advanced range – PST30…PSTB1050 With Kick start Without Kick start

  35. The Advanced range – PST30…PSTB1050 Dual Current Limit

  36. The Advanced range – PST30…PSTB1050 Main technical data Wide main voltage rangePST(B) xx-600 ….. 208 – 600V PST(B) xx-690…… 400 – 690V • Few versions cover everything • Minimized stocking • Easy to select • Torque control No special version for Heavy duty starts Wide current range covering down to 0,4times rated current Wide supply voltage rangePST(B) all …..100 – 250V 50/60Hz

  37. The Advanced range – PST30…PSTB1050 By-pass Extra terminals Extra terminals Extra terminals PST30…72 PST85…142 PST175…300 With by-pass With by-pass PSTB370…470 PSTB570…1050

  38. The Advanced range - PST30…300 Three extra terminals B1,B2 and B3 By-pass • Easy to by-pass • Simplified wiring • 50% of the customer will use it. • Overload still active when by-passed. Extra terminals

  39. The Advanced range – PSTB370…1050 By-pass • Saving the cost for the by-pass contactor. (50% normally use it) • Space saving • Energy saving • Reduced wiring With by-pass AF-contactor Example energy saving :1000A softstarter without by-pass = 3000W;PSTB1050 = 170W Integrated by-pass contactor

  40. The Advanced range – PST30…PSTB1050 Function description of EVENTS divided into Protections, Faults and Warnings Stop-M = Stop with Manual reset Stop-A = Stop with Automatic reset Ind = Indication only Protection Motor overload protection High current protection SCR overload protection Locked rotor protection Under load protection Phase reversal protection Phase imbalance protection PTC protection Faults Phase loss By-pass fault Fieldbus fault Frequency fault Over temperature heatsink Shorted thyristor Warnings Motor overload warning SCR overload warning Overload warning (high current). Underload warning (low current) Operation Stop-M or Stop-A or Ind Operation Stop-M or Stop-A Operation Ind

  41. Time Class 30 Class 20 Class 10 Motor overloadprotection Class 10A Current The Advanced range – PST30…PSTB1050 Advanced electronic overload protection • Always integrated • No special version for heavy duty starts • Easy to set up • Possible to optimize for any application Possible to set four trip classes: 10A,10, 20 & 30 Stop-M or Stop-A or Ind No, Normal or Dual

  42. The Advanced range – PST30…PSTB1050 Advanced electronic overload protection Dual Overload protection • Heavy duty start and still “quick” reaction during normal operation • Suitable for all heavy duty starts. Time Start Class 30 Class 20 Class 10 Run Motor overloadprotection Class 10A Excellent protection of the motor Current Switching from ”Start” to Run 30sec after Top of Ramp No, Normal or Dual Stop-M or Stop-A or Ind

  43. The Advanced range – PST30…PSTB1050 Advanced electronic overload protection

  44. The Advanced range – PST30…PSTB1050 Advanced electronic overload protection Locked rotor protection • Extra fast protection when locked rotor. • Reduce stress and protection on transmissions Active after reaching Top pf Ramp Time Class 30 To avoid repair & break down / prevent down time Class 20 Class 10 Class 10A It is possible to set both reaction time and current level. Current

  45. The Advanced range – PST30…PSTB1050 Advanced electronic overload protection Under load protection • Detect a broken belt – secure the process. • Detect a “dry” pump. Active after reaching Top pf Ramp I To avoid repair & break down / prevent down time OK Not OK It is possible to set both current level & reaction time. rpm Low or Unloaded motor

  46. M M M The Advanced range – PST30…PSTB1050 Phase monitoring Phase reversal protection • Prevent wrong rotation – sawmill, crusher, conveyor.. • Mobile units. To avoid accidents and damages. ??? L1,L2 & L3 L3,L2 & L1 It is possible to disconnect

  47. M The Advanced range – PST30…PSTB1050 Phase monitoring Phase imbalanced protection • Detection of imbalanced currents. - Voltage variations- Motor problems To avoid accidents and damages. Active 30sec after Top of Ramp It is possible to activate and set deviation level

  48. M The Advanced range – PST30…PSTB1050 Additional motor protection PTC protection • Motors located in High temp areas or can be exposed for high ambient temperatures – Can not be detected by the E.O.L To avoid repair & break down / prevent down time For motors with integratedPTC elements

  49. M The Advanced range – PST30…PSTB1050 Analog output (as standard) Select between • 0 ..10V • 0..20mA • 4…20mA • No need for additional CT’s • Possible to feed aPLC with information. • Possible to feed aVSD for controlling the flow / conveyor • Easy access to key information • Use the same terminals as for the PTC inputs(terminals 23 and 24) I Amp, U Volt, P kW, P Hp, Q kVAr, S kVA, Motor temp, SCR temp, Cos Φ

  50. Time Softstarter protection Class 30 Class 20 Class 10 Motor overloadprotection Class 10A Current The Advanced range – PST30…PSTB1050 Advanced thyristor / SCR protection Function • Measure the current and time – calculating the SCR temp + measure the heat sink temperature • Limit if trying to start too many starts per hour (also during installation) • Broken cooling fans • To high ambient temperature. To prevent overheating and and ensure a long lifetime of the product.

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