LATEST TREND IN TRANSFORMER.pptx
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The document discusses the latest trends and technological improvements in transformers. Some of the key trends mentioned include using control switching devices or phase synchronizing devices to reduce inrush current, improving core materials by using amorphous materials or CRGO, improving coil and tank designs for better cooling, using optic fiber temperature sensors for improved monitoring, and upgrading fire safety equipment for transformers.
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LATEST TREND IN TRANSFORMER.pptx
- 1. LATEST TREND IN TRANSFORMER BY MANISH PANDYA DIRECTOR - MECPL
- 3. LATEST TREND AND TECHNOLOGICAL IMPROVEMENT IN TRANSFORMER 1. INRUSH CURRENT REDUCE BY CONTROL SWITCHING DEVICE (CSD) OR PHASE SYNCHRONISING DEVICE (PSD) 2. IMPROVEMENT AND CHANGE IN CORE MATERIAL 3. IMPROVEMENT AND CHANGE IN COIL DESIGN 4. IMPROVEMENT AND CHANGE IN TANK DESIGNE 5. IMPROVEMENT AND CHANGE IN CONSERVATOR DESIGNE 6. OPTIC FIBER TAMPERATURE SENSOR 7. CHANGE IN FIRE FIGHTING EQUIPMENT FOR TRANSFORMER
- 4. INRUSH CURRENT REDUCE BY CONTROL SWITCHING DEVICE (CSD) OR PHASE SYNCHRONISING DEVICE (PSD) PSD CSD
- 5. INRUSH CURRENT REDUCE BY CONTROL SWITCHING DEVICE (CSD) OR PHASE SYNCHRONISING DEVICE (PSD)
- 6. INRUSH CURRENT REDUCE BY CONTROL SWITCHING DEVICE (CSD) OR PHASE SYNCHRONISING DEVICE (PSD)
- 7. INRUSH IMMUNE DIFFERENTIAL PROTECTION OLD ELECTROMECHANICAL RELAY
- 8. INRUSH IMMUNE DIFFERENTIAL PROTECTION Method Used to evaluate Harmonic FFT (Fast Fourier Transformer) or MEM (Maximum Entropy Method)
- 9. INRUSH IMMUNE DIFFERENTIAL PROTECTION NEW MICORPROCESSOR TYPE RELAY
- 10. IMPROVEMENT AND CHANGE IN CORE MATERIAL AMORPHOUS MATERIAL CRGO MATERIAL
- 11. IMPROVEMENT AND CHANGE IN CORE MATERIAL
- 12. DISADVANTAGE OF AMOURPOUSE MATERIAL Amorphous metal cores saturate at a lower flux density than CRGO, which requires larger coils for the same capacity. Due to small thickness and low saturation factor, larger core and consequently larger coils and tank size are required as compared to CRGO core transformers. The other significant difference between amorphous core transformers and CRGO transformers is the cross-sectional structure of the core. Because of the difficulty of producing amorphous strips, there are limited production sizes available (typically 213 mm, 170 mm, and 140 mm). Although conventional CRGO transformers can be oval or round in cross-section, amorphous cores may be square or rectangular in shape. The cost of the same capacity of amorphous core transformer is generally also more than CRGO core transformers. The amorphous Core material cannot be re-used in case burning of the core while CRGO core can be reused by repairing some of the stamping of the Core. From the repair and service point of view, Discoms and Power Departments raised apprehension about the repair services of the failed transformers with amorphous core and opined that these transformers are difficult to repair and cost of repair is higher, hence increase in the Opex cost of the Discoms and Power Departments. However, recently manufactures of AMDT have clarified the apprehension of Discoms and Power Departments, and manufacturer of AMDT have conducted many workshops at various discoms. There are observations of utilities that overload handling capacity of the Amorphous core transformers is less and overloading causes rise in the failure of amorphous core transformers than CRGO core. To protect the transformers with amorphous core there is practice of using the overload protective device in each transformer.
- 13. IMPROVEMENT AND CHANGE IN COIL DESIGN SECTIONED COIL DESIGN
- 14. IMPROVEMENT AND CHANGE IN COIL DESIGN SINGLE COIL DESIGN
- 15. IMPROVEMENT AND CHANGE IN TANK DESIGNE OLD RADIATOR DESIGN
- 16. IMPROVEMENT AND CHANGE IN TANK DESIGNE CORRUGATED TANK OR RIBBED TANK DESIGN
- 17. IMPROVEMENT AND CHANGE IN CONSERVATOR DESIGNE CONSERVATOR WITH AIR CELL NORMAL CONSERVATOR
- 18. OPTIC FIBER TAMPERATURE SENSOR WINDING TEMPERATURE INDICATOR (TRADITIONAL DESIGNE) OPTIC FIBER TEMPERATURE SENSOR
- 19. CHANGE IN FIRE FIGHTING EQUIPMENT FOR TRANSFORMER
- 20. CHANGE IN FIRE FIGHTING EQUIPMENT FOR TRANSFORMER
- 21. CHANGE IN FIRE FIGHTING EQUIPMENT FOR TRANSFORMER
- 22. CHANGE IN FIRE FIGHTING EQUIPMENT FOR TRANSFORMER
- 23. CHANGE IN FIRE FIGHTING EQUIPMENT FOR TRANSFORMER
- 24. BUSHING 1.OIP (Oil-Impregnated Paper) Bushing 2.RIP (Resin Impregnated Paper) Bushing 3.RIS (Resin Impregnated Synthetic) Bushing 4.Resin Bonded Paper (RBP) Bushing 5.Cast Epoxy Bushing