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UTL Sigma Grid Export Solar PCU 4 Kva 48V Price
Sigma+ PCU is a solar power conditioning unit which is a single phase output, Inverter system. It works as a Bi-directional inverter which means power will be exported into the grid or power will be imported from the Grid.
The Sigma+ PCU work in two operating condition:
2. Grid Interactive
Stand-alone: Inverter operates from battery or array power source and produces AC output. Battery charged by solar (primary) & also from grid (secondary). Since usage of power from grid is secondary, grid power is only used when solar power is absent or below a certain level and battery voltage level reduces upto battery low status. Working Modes: Smart, PCU & Hybrid
|Operating DC Voltage||48V|
|Input Voltage range(Min.-Max.)||90-180|
|Maximum PV power recommended||4|
Solar Charge Controller
|Type of Charger||PWM with MPPT|
|Battery Low Buzzer||11.2 V|
|Battery Low cut||11 V|
|Battery High cut||16 V|
|Battery Charging Voltage with SPV||14.5 V|
|Battery Charging Current with SPV||18 V|
|Battery Charging Voltage with Grid||13 V|
|Battery Charging Current with Grid||10 V|
|Grid low cut voltage(it Mode/Normal)||175/120 V|
|Grid high cut voltage(IT Mode/Normal)||255/280 V|
|Operating mode||Smart/PCU/Hybrid/Grid Export|
|Output voltage low||185 V|
|Output voltage high||255 V|
|No load shutdown||Enable/Disable|
Grid Export Mode Enable
Grid Interactive: Inverter operates from battery or array power source and produces AC output and also operates in parallel with the grid supply. Any excess solar power will be exported into the grid. Whenever sufficient solar power is not available to run the load, the required power is shared from the grid. The maximum power feed into the grid is depends on the system rating. Battery charging automatically occur from the grid to maintain the battery bank at its grid charging voltage. Working Modes: Grid Export Mode
|Grid Low/recover||185/195 V|
|Grid High/recover||280/275 V|
|Synchronization voltage range||185/280 V|
|Synchronization frequency range||47 to 53 V|
|maximum charging current from grid (import)||1-15 A|
The PCU feeds the battery installed to it a constant boost charging current until its voltage reaches 14.2V and the float current (which is very close to zero) then maintains this voltage above 13V. Thus reducing the float current ( flowing for the longest period during the entire process) to zero, ultimately resulting in much enhanced battery life keeping it fully charged simultaneously.
|Grid Disconnect (Solar Available)||@14.5V/Battery for 2 minutes OR 13.5V/Battery-100% Current (if Grid Chg. Volt. Ref. set to 14.2V)|
|Grid Reconnect (PCU Mode / Smart Mode),||11.5 V|
|Import ON (Grid Export mode)||11.5 V|
|Temp. Compensation||@ 3mV/cell; 18mV/Battery|
|Nominal Output voltage||220 V|
|Output supply phase||1Phase, 3 Wire|
|Output waveform||Sine Wave|
|Nominal frequency||50 Hz|
|Load power factor||0.8|
|Output voltage distortion with 100% linear load||<3|
|Overload capacity||IT Load Disable
100-120%(3Times auto reset):60sec;
120- 150%(3Times auto reset : 30sec;
>400%:20 msec;IT Load Enable
100-110%:10min; 150-200%:2sec; >400%:20 msec;
110-120%: 2min; 200-300%:2sec;
|Peak efficiency||>85 %|
|Noise @ 1 meter||60 dB|
|Cooling||Temp. Controlled Fan|
|Protections||Overload, Battery Low, Battery High, Output Low, Output High, Output Short Ckt., Input Short Ckt., Overheat, Under Frequency, Over Frequency, Solar Panel Reverse , Anti-islanding|
|Display Parameters||Battery Voltage, Charging Current, Discharging Current, charging KWH and discharging KWH, Solar Voltage, Solar Current, Instantaneous Power, Cummulative Energy , Grid Voltage Grid Current, Frequency, Import Power, Import Energy
Export Power, Export Energy , Output Voltage, Output Current, Frequency, Instantaneous Power & Commutative Energy , Grid, Inverter & SPV Charger Status
|Switches||Reset for System ON/OFF, UP, DOWN, BACK, ENTER (for LCD Configuration)|
|Indications||System ON, Inv. ON, SPV Charging, Grid Charging, Grid Export ON, Battery Low/High, No Load, Overload, Overheat, Mains Low, Mains High, Under frequency, Over frequency, Operating modes (smart, Hybrid, PCU and Gridexport)|
|Operating temperature||0-50 ºC|
|Max. Relative Humidity @ 25 C (non condensing)||95 %|
|Degree of Protection||IP-21|
|Data Logging||30 Days Data Storage|
|Dimension (LxWxH)||18 x 10 x 20 Inch|
- Grid Interactive.
- DSP based design built in rMPPT solar charge controller.
- USB/Ethernet based monitoring with 30 days data storage.
- Maximum preference to Solar Power.
- Priority based working modes:
Smart Mode – Solar, Battery, Grid (Day time)
Grid, Battery (Night time).
PCU Mode – Solar, Battery, Grid.
Hybrid Mode – Grid, Solar, Battery (Load)
Grid Export Mode – Solar, Grid, Battery
- User friendly & easily accessible LCD Display with all AC & DC parameter configurable from LCD:
AC- Input & Output Voltage. DC- Battery charging voltage, Charging current, Low cut & High cut.
- Compatible with all PV arrays having different no of cells (36 cell/60 cell/72 cell) with 100% panel
- IEC 61683, 61727, 60529, 60068-2 (1,2,14,30) and 62116 standards approved from MNRE.
Disclaimer: The Price & Specs Shown May Be Different From Actual. Please Confirm Before Purchasing.
|Input AC Voltage||
|Input Supply Phases||
|Input Voltage range (Voc)||
|Max Panel Capacity||
|Nominal Battery Voltage||
Pure Sine Wave
|Solar Charger Current||