SOLAR OFF-GRID MPPT PCU ESM3K/48, ESM5K/96, ESM7K5/120, ESM10K/120 LCD Advanced MPPT Technology Pure sine wave output LCD screen for user convenience Highest efficiency in its class Temperature compensated charging (ATC) Intelligent selection modes for High/Medium/Low Power Cut Areas Advanced DSP based Technology Intelligent Mixing of Grid Current with Solar in case of Solar Energy Shortfall Built in energy meter Remote monitoring & data logging www.eastmangroup.co.in www.eaplworld.com
THE CONTENT 01 ABOUT US 03 3KVA SOLAR MPPT PCU 05 7.5KVA SOLAR MPPT PCU 07 OPERATING MODES 02 CORE PRODUCT FEATURES 04 5KVA SOLAR MPPT PCU 06 10KVA SOLAR MPPT PCU 08 FAQ
ABOUT US The Eastman Global group began its journey in the year 1970 with presence in over 105 countries and a 2200+ loyal distributor and dealer network across the world. Eastman Auto & Power Limited instituted by Eastman group is a leading manufacturer of Tall Tubular Batteries, Tubular Gel SMF Batteries, Solar Batteries, E-Rickshaw Batteries & Automotive Batteries, and offers a wide range of inverters, solar panels and top of the line solar products that are widely known for their innovative technology. OUR ACHIEVEMENTS Established in 1970 2000 Crore Turnover 2500+ Happy Employees Presence in 105 Countries SOLAR OFF-GRID MPPT PCU, PAGE 01, Ver. 1.0
CORE PRODUCT FEATURES LCD Advanced MPPT Technology Intelligent selection modes for High/Medium/Low Power Cut Areas Pure sine wave output Advanced DSP based Technology LCD screen for user convenience with Configurable Parameters Intelligent mixing of Grid current with solar in case of solar energy shortfall during cloudy days Highest efficiency in its class 1 2 3 4 5 6 7 SOLAR OFF-GRID MPPT PCU, PAGE 02, Ver. 1.0 Built in energy meter Temperature compensated charging Remote monitoring & data logging 8 9 10
3KVA SOLAR MPPT PCU Eastman's advanced MPPT technology based 3KVA Solar Off-Grid PCU has been manufactured in India using world class technology platform and processes. It is a single integrated system with an inbuilt solar charge controller, inverter and grid charger. This 3KVA unique hybrid system provides intelligent mixing of grid current with solar in case of solar energy shortfall during cloudy days for maximum solar utilization. The advanced MPPT technology extracts maximum power from the solar panel array giving highest tracking efficiency of >98%. Eastman's 3KVA Solar MPPT based PCU is best suited for residential homes and small commercial establishments. FEATURES Advanced MPPT technology ensures upto 30% more energy extraction from Solar panel as compared to PWM based technology Hybrid/PCU/Smart selection mode for high/medium/low power cut areas Extra safety protections through MCB/fuse Intelligent mixing of Grid current with solar in case of solar energy shortfall during cloudy days Highest efficiency in its class Pure sine-wave output Advanced DSP based technology LCD Screen for user convenience User configurable parameters through front end wide screen LCD display Faster change over time to run IT appliances without interruption Grid bypass switch for running connected load in case of system failure Built-in energy meter for Mains,, Solar and Temperature compensated (ATC) charging to enhance performance and life of battery upto 30% USB/Ethernet based data logging with data storage facility Grid charging Enable/Disable No load shut down Enable/Disable IT Mode Enable/Disable SOLAR OFF-GRID MPPT PCU, PAGE 03, Ver. 1.0
Technical Specifications - 3KVA Solar Off-Grid MPPT PCU MODEL NO. PCU VA ESM3K/48 3000 INPUT PARAMETERS Nominal I/P DC Voltage (V) Low Warning (V) Low Cut off (V) 48 43.2±0.4 42±0.4 OUTPUT PARAMETERS Waveform Voltage Regulation (From min. to max. battery voltage & no load to full load) (V) Frequency Regulation Peak Efficiency of Inverter Overload Capacity (IT Selection) Overload Capacity (Normal Selection) Distortion(THD) Crest factor Short Circuit Protection No load Shutdown (W) Pure Sinewave 195-220 50 Hz±1Hz 89% 110% for 60Sec. & 150% for 30Sec. & 200% for 2Sec. 120% for 60Sec.(3 Retry) & 150% for 30Sec.(3 Retry) & 200% for 2Sec.(No Retry) <3% 3:01 Provided 10-15 GRID USAGE Grid Power usage Grid Charge End Voltage Change over Time from Mains to Inverter/Inverter to Mains Grid I/P Voltage range Default (IT load) Grid I/P Voltage range Default (Normal load) Depends on Mode Selection (Solar always on priority) 56.8V (Settable from 52-58V) <10ms 255V-175V 280V-120V SOLAR OFF-GRID MPPT PCU, PAGE 04, Ver. 1.0 Grid Charging Current Default Cooling Charging Current Sharing Grid Charge Current Enable/Disable Night Grid Priority *Technical Specifications are subject to change without prior notice due to constant improvement in design and technology. 12A (Settable from 8A-20A) Fan cooling Solar on priority, in case solar current is less, shortfall will be taken from grid Provided Available in Smart Mode
MPPT SOLAR CHARGE CONTROLLER Technology Solar Array Max Solar Panel Wattage Input DC Voltage Range (MPPT) Bulk Voltage Adjustable Bulk Voltage Transition from float to bulk Protection Power Conversion Efficiency of Solar Charger Controller Automatic Temperature compensation (Optional) High Temperature Cut-OFF Inverter/ MPPT High Temperature MPPT Charge Reconnect DSP based MPPT charger Single Array 3kWp 72V - 180V 58.4V (Settable from 54V-60V) User Settable Below float level Pv Reverse Protection, Reverse Current Flow, High Temperature, Over Current, Overcharge Protedction 96% -3mV/ C/ cell 102 C ± 5 C 85 C ± 5 C OTHER SPECIFICATIONS LCD Display Messages Voltage, Charging Current, Discharging Current, Low/High, Charging Unit (kwh), Discharging Unit (kwh), Solar Voltage, Solar Current, Solar Instantaneous Power, Solar Commutative Energy Unit (kwh), Grid Voltage, Grid Current, Grid Commutative Power (kwh), Grid Instantaneous Power, Grid Frequency, Output Voltage, Output Current, Cumulative Output Power(kWh), Output Instantaneous Power, Output Frequency. LED Indications System On, Inverter On, Solar Charging On, Grid Charging On, Low/high, Over /Heat, Mains Low/high/freqout, Fault, MPPT Over Heat. User Configurable parameters through front end LCD display Dielectric Strength Low Shutdown, High Cut, Charging Voltage by Solar, Charging Current by Solar, Charging Voltage by Grid, Charging Current by Grid, IT Mode/Normal Mode, Grid Charging Enable/Disable, Operating Modes (PCU, Smart, Hybrid), No Shutdown, Input Source (Grid/Genset Mode) 2KV IP/OP with ground and 1.5KV between input and output Operating Temp. 0 C to 50 C Storage Temp. -10 C to 70 C Acoustic Noise 50dB from one meter Relevent Humidity 95% Non-Condensing Size (L x W x H) 490mm x 260mm x 445mm Weight (approx.) 45 KG *Technical Specifications are subject to change without prior notice due to constant improvement in design and technology. SOLAR OFF-GRID MPPT PCU, PAGE 05, Ver. 1.0
5KVA SOLAR MPPT PCU Eastman's advanced MPPT technology based 5KVA Solar Off-Grid PCU has been manufactured in India using world class technology platform and processes. It is a single integrated system with an inbuilt solar charge controller and inverter and grid charger. This 5KVA unique hybrid system adopts intelligent mixing of grid current with solar in case of solar energy shortfall during cloudy days. The advanced MPPT technology extracts maximum power from the solar panel array giving highest tracking efficiency of greater than >98%. Eastman's 5KVA solar MPPT based PCU is best suited for installing in petrol pumps, gas stations, schools, commercial and residential applications. FEATURES Advanced MPPT technology ensures upto 30% more energy extraction from Solar panel as compared to PWM based technology Hybrid/PCU/Smart selection mode for high/medium/low power cut areas Extra safety protections through MCB/fuse Intelligent mixing of Grid current with solar in case of solar energy shortfall during cloudy days Highest efficiency in its class SOLAR OFF-GRID MPPT PCU, PAGE 06, Ver. 1.0 Pure sine-wave output Advanced DSP based technology LCD Screen for user convenience User configurable parameters through front end wide screen LCD display Faster change over time to run IT appliances without interruption Grid bypass switch for running connected load in case of system failure Built-in energy meter for Mains,, Solar and Temperature compensated (ATC) charging to enhance performance and life of battery upto 30% USB/Ethernet based data logging with data storage facility DC soft start switch Grid charging Enable/Disable No load shut down Enable/Disable IT Mode Enable/Disable
Technical Specifications - 5KVA Solar Off-Grid MPPT PCU MODEL NO. PCU VA ESM5K/96 5000 INPUT PARAMETERS Nominal I/P DC Voltage (V) Low Warning (V) Low Cut off (V) 96 86.4±0.8 84±0.8 OUTPUT PARAMETERS Waveform Voltage Regulation (From min. to max. battery voltage & no load to full load) (V) Frequency Regulation Peak Efficiency of Inverter Overload Capacity (IT Selection) Overload Capacity (Normal Selection) Distortion(THD) Crest factor Short Circuit Protection No load Shutdown (W) Pure Sinewave 195-220 50 Hz±1Hz 89% 110% for 60Sec. & 150% for 30Sec. & 200% for 2Sec. 120% for 60Sec.(3 Retry) & 150% for 30Sec.(3 Retry) & 200% for 2Sec.(No Retry) <3% 3:01 Provided 15-20 GRID USAGE Grid Power usage Grid Charge End Voltage Change over Time from Mains to Inverter/Inverter to Mains Grid I/P Voltage range Default (IT load) Grid I/P Voltage range Default (Normal load) Depends on Mode Selection (Solar always on priority) 113.6V (Settable from 104-116V) <10ms 255V-175V 280V-120V Grid Charging Current Default Cooling Charging Current Sharing Grid Charge Current Enable/Disable Night Grid Priority *Technical Specifications are subject to change without prior notice due to constant improvement in design and technology. 12A (Settable from 8A-20A) Fan cooling Solar on priority, in case solar current is less, shortfall will be taken from grid Provided Available in Smart Mode SOLAR OFF-GRID MPPT PCU, PAGE 07, Ver. 1.0
MPPT SOLAR CHARGE CONTROLLER Technology Solar Array Max Solar Panel Wattage Input DC Voltage Range (MPPT) Bulk Voltage Adjustable Bulk Voltage Transition from float to bulk Protection Power Conversion Efficiency of Solar Charger Controller Automatic Temperature compensation (Optional) High Temperature Cut-OFF Inverter/ MPPT High Temperature MPPT Charge Reconnect DSP based MPPT charger Single Array 5kWp 144V - 360V 116.8V (Settable from 108V-120V) User Settable Below float level Pv Reverse Protection, Reverse Current Flow, High Temperature, Over Current, Overcharge Protedction 96% -3mV/ C/ cell 102 C ± 5 C 85 C ± 5 C OTHER SPECIFICATIONS LCD Display Messages Voltage, Charging Current, Discharging Current, Low/High, Charging Unit (kwh), Discharging Unit (kwh), Solar Voltage, Solar Current, Solar Instantaneous Power, Solar Commutative Energy Unit (kwh), Grid Voltage, Grid Current, Grid Commutative Power (kwh), Grid Instantaneous Power, Grid Frequency, Output Voltage, Output Current, Cumulative Output Power(kWh), Output Instantaneous Power, Output Frequency. LED Indications System On, Inverter On, Solar Charging On, Grid Charging On, Low/high, Over /Heat, Mains Low/high/freqout, Fault, MPPT Over Heat. User Configurable parameters through front end LCD display Dielectric Strength Low Shutdown, High Cut, Charging Voltage by Solar, Charging Current by Solar, Charging Voltage by Grid, Charging Current by Grid, IT Mode/Normal Mode, Grid Charging Enable/Disable, Operating Modes (PCU, Smart, Hybrid), No Shutdown, Input Source (Grid/Genset Mode) 2KV IP/OP with ground and 1.5KV between input and output SOLAR OFF-GRID MPPT PCU, PAGE 08, Ver. 1.0 Operating Temp. 0 C to 50 C Storage Temp. -10 C to 70 C Acoustic Noise 50dB from one meter Relevent Humidity 95% Non-Condensing Size (L x W x H) 647mm x 330mm x 580mm Weight (approx.) 60 KG *Technical Specifications are subject to change without prior notice due to constant improvement in design and technology.
7.5KVA SOLAR MPPT PCU Eastman's Off-Grid MPPT based 7.5KVA has been manufactured in India using world class technology platform and processes. Inbuilt with advanced DSP based technology the series has a rugged, strong and long lasting design. It provides operational flexibility to its users to enjoy the benefits of advanced monitoring and control features. The advanced MPPT technology extracts maximum power from the solar panel array giving highest tracking efficiency of >98%. It has been designed on intelligent thermal management system suitable for installing in petrol pumps, gas stations, schools, commercial and residential applications. FEATURES Advanced MPPT technology ensures upto 30% more energy extraction from Solar panel as compared to PWM based technology Hybrid/PCU/Smart selection mode for high/medium/low power cut areas Extra safety protections through MCB/fuse Intelligent mixing of Grid current with solar in case of solar energy shortfall during cloudy days Highest efficiency in its class Pure sine-wave output Advanced DSP based technology LCD Screen for user convenience User configurable parameters through front end wide screen LCD display Faster change over time to run IT appliances without interruption Grid bypass switch for running connected load in case of system failure Built-in energy meter for Mains,, Solar and Temperature compensated (ATC) charging to enhance performance and life of battery upto 30% USB/Ethernet based data logging with data storage facility DC soft start switch Grid charging Enable/Disable No load shut down Enable/Disable IT Mode Enable/Disable SOLAR OFF-GRID MPPT PCU, PAGE 09, Ver. 1.0
Technical Specifications - 7.5KVA Solar Off-Grid MPPT PCU MODEL NO. PCU VA ESM7K5/120 7500 INPUT PARAMETERS Nominal I/P DC Voltage (V) Low Warning (V) Low Cut off (V) 120 108±2 105±2 OUTPUT PARAMETERS Waveform Voltage Regulation (From min. to max. battery voltage & no load to full load) (V) Frequency Regulation Peak Efficiency of Inverter Overload Capacity (IT Selection) Overload Capacity (Normal Selection) Distortion(THD) Crest factor Short Circuit Protection No load Shutdown (W) Pure Sinewave 195-220 50 Hz±1Hz 89% 110% for 60Sec. & 150% for 30Sec. & 200% for 2Sec. 120% for 60Sec.(3 Retry) & 150% for 30Sec.(3 Retry) & 200% for 2Sec.(No Retry) <3% 3:01 Provided 20-25 GRID USAGE Grid Power usage Grid Charge End Voltage Change over Time from Mains to Inverter/Inverter to Mains Grid I/P Voltage range Default (IT load) Grid I/P Voltage range Default (Normal load) Depends on Mode Selection (Solar always on priority) 142V (Settable from 130-145V) <10ms 255V-175V 280V-120V SOLAR OFF-GRID MPPT PCU, PAGE 10, Ver. 1.0 Grid Charging Current Default Cooling Charging Current Sharing Grid Charge Current Enable/Disable Night Grid Priority *Technical Specifications are subject to change without prior notice due to constant improvement in design and technology. 12A (Settable from 8A-20A) Fan cooling Solar on priority, in case solar current is less, shortfall will be taken from grid Provided Available in Smart Mode
MPPT SOLAR CHARGE CONTROLLER Technology Solar Array Max Solar Panel Wattage Input DC Voltage Range (MPPT) Bulk Voltage Adjustable Bulk Voltage Transition from float to bulk Protection Power Conversion Efficiency of Solar Charger Controller Automatic Temperature compensation (Optional) High Temperature Cut-OFF Inverter/ MPPT High Temperature MPPT Charge Reconnect DSP based MPPT charger Single Array 7.5kWp 180V - 450V 146V (Settable from 135V-150V) User Settable Below float level Pv Reverse Protection, Reverse Current Flow, High Temperature, Over Current, Overcharge Protedction 96% -3mV/ C/ cell 102 C ± 5 C 85 C ± 5 C OTHER SPECIFICATIONS LCD Display Messages Voltage, Charging Current, Discharging Current, Low/High, Charging Unit (kwh), Discharging Unit (kwh), Solar Voltage, Solar Current, Solar Instantaneous Power, Solar Commutative Energy Unit (kwh), Grid Voltage, Grid Current, Grid Commutative Power (kwh), Grid Instantaneous Power, Grid Frequency, Output Voltage, Output Current, Cumulative Output Power(kWh), Output Instantaneous Power, Output Frequency. LED Indications System On, Inverter On, Solar Charging On, Grid Charging On, Low/high, Over /Heat, Mains Low/high/freqout, Fault, MPPT Over Heat. User Configurable parameters through front end LCD display Dielectric Strength Low Shutdown, High Cut, Charging Voltage by Solar, Charging Current by Solar, Charging Voltage by Grid, Charging Current by Grid, IT Mode/Normal Mode, Grid Charging Enable/Disable, Operating Modes (PCU, Smart, Hybrid), No Shutdown, Input Source (Grid/Genset Mode) 2KV IP/OP with ground and 1.5KV between input and output Operating Temp. 0 C to 50 C Storage Temp. -10 C to 70 C Acoustic Noise 50dB from one meter Relevent Humidity 95% Non-Condensing Size (L x W x H) 647mm x 330mm x 580mm Weight (approx.) 70 KG *Technical Specifications are subject to change without prior notice due to constant improvement in design and technology. SOLAR OFF-GRID MPPT PCU, PAGE 11, Ver. 1.0
10KVA SOLAR MPPT PCU Eastman's Off-Grid MPPT based 10KVA has been manufactured in India using world class technology platform and processes. Inbuilt with advanced DSP based technology the series has a rugged, strong and long lasting design. It provides operational flexibility to its users to enjoy the benefits of advanced monitoring and control features. The advanced MPPT technology extracts maximum power from the solar panel array giving highest tracking efficiency of >98%. It has been designed on intelligent thermal management system suitable for installing in petrol pumps, gas stations, schools, commercial and residential applications. FEATURES Advanced MPPT technology ensures upto 30% more energy extraction from Solar panel as compared to PWM based technology Hybrid/PCU/Smart selection mode for high/medium/low power cut areas Extra safety protections through MCB/fuse Intelligent mixing of Grid current with solar in case of solar energy shortfall during cloudy days Highest efficiency in its class SOLAR OFF-GRID MPPT PCU, PAGE 12, Ver. 1.0 Pure sine-wave output Advanced DSP based technology LCD Screen for user convenience User configurable parameters through front end wide screen LCD display Faster change over time to run IT appliances without interruption Grid bypass switch for running connected load in case of system failure Built-in energy meter for Mains,, Solar and Temperature compensated (ATC) charging to enhance performance and life of battery upto 30% USB/Ethernet based data logging with data storage facility DC soft start switch Grid charging Enable/Disable No load shut down Enable/Disable IT Mode Enable/Disable
Technical Specifications - 10KVA Solar Off-Grid MPPT PCU MODEL NO. PCU VA ESM10K/120 10000 INPUT PARAMETERS Nominal I/P DC Voltage (V) Low Warning (V) Low Cut off (V) 120 108±2 105±2 OUTPUT PARAMETERS Waveform Voltage Regulation (From min. to max. battery voltage & no load to full load) (V) Frequency Regulation Peak Efficiency of Inverter Overload Capacity (IT Selection) Overload Capacity (Normal Selection) Distortion(THD) Crest factor Short Circuit Protection No load Shutdown (W) Pure Sinewave 195-220 50 Hz±1Hz 89% 110% for 60Sec. & 150% for 30Sec. & 200% for 2Sec. 120% for 60Sec.(3 Retry) & 150% for 30Sec.(3 Retry) & 200% for 2Sec.(No Retry) <3% 3:01 Provided 25-30 GRID USAGE Grid Power usage Grid Charge End Voltage Change over Time from Mains to Inverter/Inverter to Mains Grid I/P Voltage range Default (IT load) Grid I/P Voltage range Default (Normal load) Depends on Mode Selection (Solar always on priority) 142V (Settable from 130-145V) <10ms 255V-175V 280V-120V Grid Charging Current Default Cooling Charging Current Sharing Grid Charge Current Enable/Disable Night Grid Priority *Technical Specifications are subject to change without prior notice due to constant improvement in design and technology. 12A (Settable from 8A-20A) Fan cooling Solar on priority, in case solar current is less, shortfall will be taken from grid Provided Available in Smart Mode SOLAR OFF-GRID MPPT PCU, PAGE 13, Ver. 1.0
MPPT SOLAR CHARGE CONTROLLER Technology Solar Array Max Solar Panel Wattage Input DC Voltage Range (MPPT) Bulk Voltage Adjustable Bulk Voltage Transition from float to bulk Protection Power Conversion Efficiency of Solar Charger Controller Automatic Temperature compensation (Optional) High Temperature Cut-OFF Inverter/ MPPT High Temperature MPPT Charge Reconnect DSP based MPPT charger Single Array 10kWp 180V - 450V 146V (Settable from 135V-150V) User Settable Below float level Pv Reverse Protection, Reverse Current Flow, High Temperature, Over Current, Overcharge Protedction 96% -3mV/ C/ cell 102 C ± 5 C 85 C ± 5 C OTHER SPECIFICATIONS LCD Display Messages Voltage, Charging Current, Discharging Current, Low/High, Charging Unit (kwh), Discharging Unit (kwh), Solar Voltage, Solar Current, Solar Instantaneous Power, Solar Commutative Energy Unit (kwh), Grid Voltage, Grid Current, Grid Commutative Power (kwh), Grid Instantaneous Power, Grid Frequency, Output Voltage, Output Current, Cumulative Output Power(kWh), Output Instantaneous Power, Output Frequency. LED Indications System On, Inverter On, Solar Charging On, Grid Charging On, Low/high, Over /Heat, Mains Low/high/freqout, Fault, MPPT Over Heat. User Configurable parameters through front end LCD display Dielectric Strength Low Shutdown, High Cut, Charging Voltage by Solar, Charging Current by Solar, Charging Voltage by Grid, Charging Current by Grid, IT Mode/Normal Mode, Grid Charging Enable/Disable, Operating Modes (PCU, Smart, Hybrid), No Shutdown, Input Source (Grid/Genset Mode) 2KV IP/OP with ground and 1.5KV between input and output SOLAR OFF-GRID MPPT PCU, PAGE 14, Ver. 1.0 Operating Temp. 0 C to 50 C Storage Temp. -10 C to 70 C Acoustic Noise 50dB from one meter Relevent Humidity 95% Non-Condensing Size (L x W x H) 660mm x 330mm x 665mm Weight (approx.) 100 KG *Technical Specifications are subject to change without prior notice due to constant improvement in design and technology.
OPERATING MODES PCU MODE Solar Present Grid Present Solar Absent Grid Present CASE - 01 CASE - 02 A. Runs on Solar + (If Batt. volt. = 13.5V & 100% Charging Current (as set by user) from solar or = 14.5V for 2Mins) B. Runs on Grid + Charging By Solar or Grid + Solar (If Otherwise) A. Runs on (If Batt. volt. >11.5V) B. Runs on Grid + Charging By Grid (If Otherwise) Solar Absent Grid Absent Solar Present Grid Absent CASE - 03 A. Runs on CASE - 04 A. Runs on Solar + Charging on Solar (If > Power) B. Runs on Solar + (If Otherwise) SOLAR OFF-GRID MPPT PCU, PAGE 15, Ver. 1.0
SMART MODE Solar Present Grid Present Solar Absent Grid Present CASE - 01 CASE - 02 A. Runs on Solar or Solar + (If Batt. volt. = 13.5V & 100% Charging Current (as set by user) from Solar or 14.5V for 2Mins) B. Runs on Grid + Charging By Solar (If Otherwise) A. Runs on Grid (If Batt. volt. >11.2V) B. Runs on Grid + Charging Upto 14.2V (If Otherwise) Solar Absent Grid Absent Solar Present Grid Absent CASE - 03 CASE - 04 A. Runs on A. Runs on Solar + Charging on Solar (If > Power) B. Runs on Solar + (If Otherwise) NOTE - charging by grid will only take place if grid charging is enabled. HYBRID MODE Solar Present Grid Present Solar Absent Grid Present CASE - 01 CASE - 02 A. Runs on Grid B. Charging By Solar or Solar + Grid A. Runs on Grid B. Charging By Grid Solar Absent Grid Absent Solar Present Grid Absent SOLAR OFF-GRID MPPT PCU, PAGE 16, Ver. 1.0 CASE - 03 A. Runs on CASE - 04 A. Runs on Solar + Charging on Solar (If > Power) B. Runs on Solar + (If Otherwise)
FREQUENTLY ASKED QUESTIONS 01 What is an Off-Grid Solar System? An Off-Grid Solar System consists of solar panels, solar inverter, charge controller and batteries. When sun rays fall on solar panels, DC power is generated. This DC power is then converted into usable AC power to run the connected appliances. The surplus DC power is stored in batteries to be used during power cuts. The inbuilt solar charge controller ensures proper battery charging and prevents reverse flow of current to the solar panels. 02 What is Maximum Power Point Tracking? A maximum power point tracker is a DC to DC converter that optimizes the power conversion between the solar panels and battery bank or utility grid. The charge controller checks the output of the panels, and compares it to the battery voltage. It then decides the best power that the panel can put out to charge the battery. The MPPT solar charge controller then converts it to best voltage to get maximum current into the battery. 03 How is PWM based solar charge controllers different from MPPT based? There are two types of solar charge controllers PWM (Pulse Width Modulation) and MPPT (Maximum Power Point Tracking). The MPPT is a more advanced technology charger than PWM and is meant to extract maximum power from the solar panel to provide the best charging current to the battery. They convert extra voltage of panel into current which increases the output current (Im + Difference due to conversion of extra voltage into current) from the solar system. PWM on the other hand would simply deliver the amount of current equivalent to Im to the battery. 04 How are MPPT based charge controllers better than PWM? As one can figure out an on-grid solar system is 'always connected to the grid'. There is no provision of battery storage in an on-grid system. The connected appliances are powered through available solar and unused solar power is exported to the grid. In an off grid solar system there is a provision of battery backup. 05 How is ATC technology beneficial for me? ATC means automatic temperature compensation. This technology enables your Off grid PCU to detect the ambient temperature surrounding the battery. All batteries require 25 degrees room temperature to function optimally. In case of summers the ambient temperature is high which may lead to overheating and overcharging of the battery. To maintain battery temperature the ATC sensor adjusts the bulk boost voltage of the battery to ensure optimum battery charging and enhance battery performance in all weather conditions. SOLAR OFF-GRID MPPT PCU, PAGE 17, Ver. 1.0
INDIA CORPORATE OFFICE EASTMAN AUTO & POWER LTD. 547, Udyog Vihar, Phase-V, Gurgaon-122016, Haryana, India. India Toll Free No. 1800 419 8610 DUBAI OFFICE AMPS MIDDLE EAST FZE P.O. Box - 56473, Ras Ali Khaimah, United Arab Emirates +91 124 4682600/2610 sales@eastmanglobal.com