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© P2Power Solutions Pvt. Ltd P2 Power Solutions Neutral Compensation - Hospitality
An Innovative Engineering Solutions company focused on ensuring high Power Quality for its customers Promoted by a group of IIT Kharagpur graduates State of the art production facilities at Noida & Kharagpur An ISO 9001:2008 certified company Currently delivering products (CE certified) and services catering to the power and energy demands of the industry Dedicated R&D activities in collaboration with IIT Kharagpur to improve and expand the current range of products and services © P2Power Solutions Pvt. Ltd Company Profile
© P2Power Solutions Pvt. Ltd Measurement errors in metering equipments Spurious operation of fuses, circuit-breakers and other protective devices Voltage glitches in computers systems resulting in lost data Electromagnetic interference with TV, radio, communication & telephone Malfunctioning of standby generators and associated AVR control equipments Excessive temperature rise in motors, transformers Failure of Power Factor correction equipments Malfunctioning of precision equipments Low Power Quality - Symptoms
© P2Power Solutions Pvt. Ltd Case Study – Client Details Client- 5 star Hotel Sector - Hospitality Peak Load- 950A Neutral Current- 230A iTHD- 14% Triplen Harmonics- 8% PF (uncompensated)- 0.91 Point of Correction-Utility Panel, Lighting loads
© P2Power Solutions Pvt. Ltd Case Study – Client Details The client had 4 utility panels for lighting loads. The peak load in each panel ~180A Neutral current in these panels ~120A To reduce the problem of heavy neutral currents, we recommended the installation of P2 Power Active filter (4 wire configuration) at each utility panel. The results have been summarized in the following slides.
© P2Power Solutions Pvt. Ltd Case Study – Client SLD TransformerUtility Panel #1 P2 Power Active Filter (100A, 4wire) Utility Panel #2 P2 Power Active Filter (100A, 4wire) Utility Panel #3 P2 Power Active Filter (100A, 4wire) Utility Panel #4 P2 Power Active Filter (100A, 4wire)
© P2Power Solutions Pvt. Ltd Unit Off Utility Panel – Lighting Loads Unit On Neutral Current ~ 63% 100A Neutral Compensation Unit
© P2Power Solutions Pvt. Ltd Line Current - Harmonics ~ 33%~ 20% iTHD ~ 33% ~ 26% Triplen ~ 9.5%~ 26%~ 9% ~ 21% Triplen Harmonics add up in the Neutral Filter : OFF Filter : ON
© P2Power Solutions Pvt. Ltd Neutral Current neutral current ~ 42A~ 115A~ 43A Filter : OFF Filter : ON
© P2Power Solutions Pvt. Ltd Neutral Compensation - Filter Output L1 ~ 25A L2 ~ 25A L3 ~ 27A Ln ~ 78A Filter : ON Filter : OFF
© P2Power Solutions Pvt. Ltd Active Filter – Working Principle LOAD 4 wire – Active Filter CT1 CT2 CT3 L1 L2 L3 Supply L1 L2 L3 LN
© P2Power Solutions Pvt. Ltd Active Filter – Working Principle LOAD 4 wire – Active Filter CT1 CT2 CT3 L1 L2 L3 Supply L1 L2 L3 LN The P2 Power Active filter in 4 wire configuration senses the 3 line currents and calculates the neutral current using Kirchoffs Current Law. Once the required neutral current has been calculated, the digital signal processor uses advanced closed loop control logic to compensate the same. This way the heavy neutral current does not reach the main tranformer. The 4 wire configuration can integrate harmonic compensation, stepless power factor correction and active load balancing along with neutral compensation.
© P2Power Solutions Pvt. Ltd Iactive Ireactive Iharmonic ILoad Ireactive IharmonicIneutral IAF Active Filter – Working Principle
© P2Power Solutions Pvt. Ltd Igrid IAF ILoad AF Load I grid active reactive + harmonic + neutral Active Filter – Working Principle
© P2Power Solutions Pvt. Ltd Active Filter - Advantage Ultra Fast Response No Risk of Over Compensation No Risk of Resonance Step-less Correction Small FootprintProgrammable
Optimum capacity utilization Reduction in Peak current demand Reduced losses Reduced heating Efficient loading © P2Power Solutions Pvt. Ltd Active Filter – Benefits
© P2Power Solutions Pvt. Ltd COMPARISON SHEET Active Power ConditionerHybrid PF CompensatorSubstitute Technology P2 Power Active FilterP2 Power Hybrid CompensatorAPFC, RTPFC PERFORMANCE Speed< 0.2 milli seconds Response time in seconds TechnologyStepless current compensation Stepped kVAR compensation EffectivenessEffective with highly fluctuating loads Ineffective with fluctuating loads Power Factor (PF) CorrectionTrue PF compensationDisplacement PF compensation Leading/Lagging PFBoth Leading/Lagging PF compensation Lagging PF compensation only Load BalancingNegative sequence current injection No load balancing Harmonic CompensationHarmonic compensationNo Harmonic Compensation Neutral Correction Possible with 4 wire systemNot possibleNot Possible FOOTPRINT Size Advantages Smallest FootprintSmallLargest Footprint COST Installation (per Ampere) ` 3400 ~` 4200 ` 2300~ ` 2800 `1000~`1800 Resource IntensiveSmallest space requirementLow on space requirementsIncreases cost of space Capital CostReduced failures Can increase failures due to resonance Operating CostLow operating cost Recurring cost of capacitor replacement Returns on Investment High High with non fluctuating loads Improved PF Ineffective with fluctuating loads Better voltage profile Introduces voltage transients Reduced failures Can increase failure due to resonance MAINTENANCE Maintenance requirements Modular design Easy Maintenance Spare parts requirements Virtually maintenance free Recurring cost of capacitors/contactors
© P2Power Solutions Pvt. Ltd Thanks!
© P2Power Solutions Pvt. Ltd P2 Power Solutions Active Filter on DG – Newspaper Printing.
© P2Power Solutions Pvt. Ltd P2 Power Solutions Diesel Generator Primer.
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