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Transcript
Introduction to ElectroFlowTM System Dhaka, March 8, 2003 Mahmuduzzaman Khan Green Power Canada Introduction Electrical energy has extensive use in our daily life Most customers believe that utilities have caused the problem Electrical pollution have significant effect on electrical motor and other equipment operation Electenergy Technology Inc. (ETI) of USA has technology to deal with this electrical pollution Introduction What is ElectroFlowTM ? ElectroFlowTM is one-of-a-kind, state-of-the-art energy saving and power conditioning system It is an integrated system equipped with a microprocessor based Regulator, which monitors V, I, PF., and Hr. at the rate of 3840-15360 samples per second. It is specifically custom engineered to optimize power quality and guaranteed savings It is versatile solution and available for various load sizes and voltages It is an integrated system consisting of LRC circuits It is equipped with a unique alarm-driven Self Diagnostic Feature(SDF) It eliminates the need to purchase a number of different devices Benefits of ElectroFlowTM Reduces facility’s energy cost up to 34% Reduces equipment downtime and maintenance Increase plant’s reliability Makes it possible to increase the total connected load of a circuit without over sizing the existing hardware Protects company’s investment Provides protection to sensitive equipment Standard Features of ElectroFlowTM Voltage Improvement and Stability Three Phase Balancing Surge and Transient Protection Broadband Harmonics Mitigation Power Factor Improvement Increase KVA Capacity Voltage Improvement and Stability Problems due to voltage variation- Overheating of motors/Insulation breakdown Imbalance current Negative voltage sequence Speed variation in motors Reduce motor efficiency MO TO R O VERHEATING 200 Temperature Rise (%) 150 5% NEMA Limit 100 Insulation Breakdown Zone 50 0 1 2 3 4 5 6 7 Voltage Imbalance (%) 8 9 10 Voltage Improvement and Stability Problems due to voltage variation Motor bearing failure Reduce production quality Waste energy/High electric bill Waste investment and operating capital Call for oversized machinery More difficult to provide adequate overload protection Increase noise and vibration Increases maintenance of equipment and machinery Voltage Improvement and Stability ElectroFlowTM Offers Real time voltage improvement and stability Saves energy Connects in parallel and it is fail safe It is modular and expandable Disqualification of other similar products (UPS, SPS) Waste energy Connect in series Generate harmonics Limited fixed sizes and not expandable Bulky and expensive Three Phase Balancing Problems due to unbalance loading Negative voltage sequence Circulating currents Increased current in neutral conductor Increased Neutral- to- Ground voltage Overheating of motors/Insulation breakdown Reduced motor efficiency Motor bearing failure Increased maintenance of equipment and machinery Wasted energy/High electric bill Wasted investment & operating capital Three Phase Balancing ElectroFlowTM Offers Real time phase balancing based X/R Saves energy Disqualification of other similar products There is no such device known in the market Surge and Transient Protection Problems due to surge and transient Increase maintenance and downtime Reduce lifetime of equipment Cause computers to stop execution of programs Creates false data in computers Erase data in computer memory Result in hardware damage Cause damage to insulation in transformers and motors Cause nuisance tripping of adjustable speed drives Wasted energy/High electric bill SURGES & TRANSIENTS Surge Am plit ude Transient Time Surge and Transient Protection ElectroFlowTM Offers Infinite response to surges and transient Saves energy Provides status indication, using SDF Disqualification of other similar products (,Zener’s) Have limited joules/sec. capacity Re-channel the energy to ground/neutral No status indicators Broadband Harmonics Mitigation Problems due to Harmonics- Overheating of transformers and rotating equipment Increased Hysteresis losses Neutral overloading/unacceptable neutral-to-ground voltages Distorted voltage and current wave forms Failed capacitor banks Fuses and Breaker tripping Unreliable operation of electronic equipment and generators Erroneous resister of electric meters Wasted energy/High electric bill HARMO NICS F unda m e nta l h3 h5 h7 S um Amplitude Time Broadband Harmonics Mitigation Wasted capacity-inefficient distribution of power Increased maintenance of equipment and machinery ElectroFlowTM Offers Broadband harmonics filtering Elimination of associated wasted energy Modular and expandable system for additional load Disqualification of other similar products (Active filters) Waste energy Connect in series Generates harmonics Limited fixed sizes and not expandable Bulky and expensive Power Factor Improvement Problems due to Power Factor Increased line losses- I2R Wasted generation capacity Wasted distribution/transformer capacity Wasted system capacity Reduced system efficiency Increased maximum demand and related charges Possible power factor charges Increased maintenance of equipment and machinery Wasted energy/High electric bill Wasted investment and operating capital Without PFCC With PFCC Power Factor Improvement ElectroFlowTM Offers Power factor 0.95-1.0 with no adverse side effects Self Diagnostic Features (SDF) Disqualification of other similar products (PFCC’s/Capacitor bank’s) Over voltage, unregulated supply Susceptibility to surges and transients, reduce Z Capacitor cell failure No cell failure protection/monitoring Harmonics magnification Resonance and overheating Leading power factor in low load or no load condition Increase torque and KW, based on percent loading Increase KVA Capacity Problems due to wasted KVA capacity Additional load requires an increase in supply size Additional load requires larger disconnecting means Additional load requires higher rated protecting devices Cable/bus capacity must be rated higher then necessary Unnecessary capital expenditure for such wasted KVA capacity More space required for additional equipment Increase KVA Capacity ElectroFlowTM Offers Balanced-capacity release in KVA capacity No adverse side effects More cost effective then any other devices in the market Optional Features of ElectroFlowTM Brownout Protection Intermittent Supply Failure Protection Specific Harmonics Filtering Phase Loss Synthesis Brownout Protection Problems due to Brownout Amplitude BRO WNO UT Time Temporary low line voltage Shutdowns Loss of microprocessor memory Loss of control Overheating of motors/Insulation breakdown Protective device tripping Speed variation Reduced motor torque, which can leads to stalling Increased maintenance and downtime Increased operating expenses Brownout Protection ElectroFlowTM Offers Real time voltage improvement and stability Saves energy Connects in parallel and fail-safe It is modular and expandable Disqualification of other similar products (UPS, SPS) Waste energy Connect in series Generate harmonics Limited fixed sizes and not expandable Bulky and expensive Intermittent Supply Failure Protection Problems due to Intermittent Supply Failure Voltage control relay tripping Phase imbalance relay tripping Plant and equipment shutdown-downtime! Loss of critical microprocessor memory Possible jogging, pinching and stalling of motors Loss of control and resetting equipment Loss of production INTERMITTENT SUPPLY FAILURE Amplitude Time Intermittent Supply Failure Protection ElectroFlowTM Offers Supplies continuous voltage during short duration (up to 1 second) intermittent supply failure and HV line switching Specific Harmonics Filtering Problems due to Specific Harmonics Overheating of transformers and rotating equipment Neutral overloading/unacceptable neutral-to-ground voltages Distorted voltage and current wave forms Failed capacitor banks Increased Hysteresis losses Fuses and Breaker tripping Wasted energy/High electric bill Erroneous resister of electric meters Unreliable operation of electronic equipment and generators Wasted capacity-inefficient distribution of power Increased maintenance of equipment and machinery Specific Harmonics Filtering ElectroFlowTM Offers Specific harmonic filtering of any magnitude Enhanced power quality Elimination of associated wasted energy It is modular and expandable to include additional load Disqualification of other similar products (Active filters) Waste energy Connect in series Limited fixed sizes and not expandable Bulky and expensive Phase Loss Synthesis Problems due to Phase Loss Imbalanced operation of three phase motors, resulting in insulation breakdown and destruction Increased downtime Loss of production Major maintenance and replacement capital requirement Phase Loss Synthesis ElectroFlowTM Offers Phase loss detection and synthesis system Makes the lost phase from the other two phases Sustains voltage supply to the load continuously Virtually no downtime V, I,Pf and Hr graph of an Industry in Dhaka Thanks to Organizers and Participants of this workshop
