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Solar Hybrid Inverter, PCU & Offgrid Solar systems
(1) Solar Smart Hybrid Home UPS :
This is just one of its kind Solar Hybrid UPS available in India with true current sharing between Grid and Solar most effectively and efficiently. It has a micro controller based PWM Charge Controller which can handle upto 20A charging current. When the Solar is available, the grid power will not be used for battery charging or for the load. Load works from Solar power. Mains will be used only when the battery voltage is below a preset voltage (adjustable). When mains is on, Solar and Mains do not load each other like in other UPSs, but the charging is done with the intelligently shared current. An outstanding feature is that if the UPS gets overloaded while working on Solar, the load gets shifted to Mains, automatically. Again when the Battery charge reaches a preset high level, Mains is cut off and the load gets shifted to Solar/battery.
Capacities available are 400, 700, 900 & 1100VA in 12V and 1.6kVA & 2.2kVA in 24V. The Open Circuit Voltage is 110% more than the system DCV and the Vmpp range for 12V is 14-18V & for 24V, it is 28-36V. The maximum panel wattage that can be connected to a 12V system is 400W and to a 24V system, it is 800W.
The output is pure Sinewave and all other regular features in a Home UPS is available in this as well. Our proprietary features such as Hot swappability of batteries, SMPS charger on mains and anti MOSFET blast lock and our famed ‘safest short circuit protection’ etc also are incorporated.
Smart Hybrid Home UPS (with PWM Charger) |
INPUT – SOLAR |
Panel Voltage Nominal (V) |
12V |
24V |
Maximum Open circuit Voltage (Voc) |
25V |
50V |
Vmpp |
14V -18V |
28V -36V |
Charger Type |
PWM Charger, current sharing with mains |
Maximum Charging current (from solar) |
20A |
Maximum Panel Wattage (Wp) |
400W |
800W |
Mains Auto disconnect voltage |
14.6V ±1% |
29.2V ±1% |
Mains Auto Reconnect voltage |
11.8V ±1% |
23.6V ±1% |
Indication |
Solar Present |
INPUT – GRID |
Normal Voltage |
220V AC Single Phase |
Input Voltage window - UPS Mode |
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170 VAC to 270VAC |
Input Voltage window - Inverter Mode |
120 VAC to 290VAC |
Normal Frequency |
50 Hz ±6 |
Minimum Mains voltage for charging |
120V AC |
Maximum charging current |
15A(From Mains) |
OUTPUT |
Output Voltage |
220V AC Single Phase |
Power Factor |
0.8 lag to Unity |
Nominal Voltage / Regulation |
220V AC Single Phase +/- 5% |
Frequency |
50Hz +/- 0.1 Hz |
Waveform |
Pure Sine Wave |
Total Harmonic Distortion |
< 2% for linear load, <3% for non linear load |
Over Load capacity |
150% for 60Sec |
Inverter Type |
PWM |
Transient Response |
Remains within +/-5%, Recovers to 98% within one cycle |
Changeover Time |
<10mS / <4mS (optional) |
Peak Inverter Efficiency |
>90% |
Protections |
Input under/over voltage, Battery deep discharge, Battery overcharge, Output under/over voltage, Output Overload, Output Short Circuit, Anti-MOSFET blast lock on battery disconnection |
(2) Off-Grid PCU with PWM Charger (PPCU) :
The functioning of this PCU is same as that of Solar Hybrid UPS. The main advantages of this PCU are : (a) the charge controller is designed for the full capacity of the PCU and (b) the transformers used are sufficiently over rated for long durations of working ( inverter works for longer durations by discharging battery and thus ensures maximum usage of Solar power) and are made of Copper for higher efficiency. Thus user can connect upto 1000W panels to a 12V unit and upto 2000W panels to a 24V unit.
Output is pure sine wave and PPCU is available in 1kVA(24V) and 2kVA(24V) models.
Off-Grid PCU (with PWM Charge Controller) |
INPUT – SOLAR |
Panel Voltage Nominal (V) |
12V |
24V |
Maximum Open circuit Voltage (Voc) |
25V |
50V |
Vmpp |
14V -18V |
28V -36V |
Charger Type |
PWM Charger, current sharing with mains |
Maximum Charging current (from solar) |
50A |
Maximum Panel Wattage (Wp) |
1000W |
2000W |
Mains Auto disconnect voltage |
14.6V ±1% |
29.2V ±1% |
Mains Auto Reconnect voltage |
11.8V ±1% |
23.6V ±1% |
Indication |
Solar Present |
INPUT – GRID |
Normal Voltage |
220V AC Single Phase |
Input Voltage window - UPS Mode |
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170 VAC to 270VAC |
Input Voltage window - Inverter Mode |
120 VAC to 290VAC |
Normal Frequency |
50 Hz ±6 |
Minimum Mains voltage for charging |
120V AC |
Maximum charging current |
15A(From Mains) |
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OUTPUT |
Output Voltage |
220V AC Single Phase |
Power Factor |
0.8 lag to Unity |
Nominal Voltage / Regulation |
220V AC Single Phase +/- 5% |
Frequency |
50Hz +/- 0.1 Hz |
Waveform |
Pure Sine Wave |
Total Harmonic Distortion |
< 2% for linear load, <3% for non linear load |
Over Load capacity |
150% for 60Sec |
Inverter Type |
PWM |
Transient Response |
Remains within +/-5%, Recovers to 98% within one cycle |
Changeover Time |
<10mS / <4mS (optional) |
Peak Inverter Efficiency |
>90% |
Protections |
Input under/over voltage, Battery deep discharge, Battery overcharge, Output under/over voltage, Output Overload, Output Short Circuit, Anti-MOSFET blast lock on battery disconnection |
(3) Off Grid PCU with MPPT Charger - MPCU :
The functioning is quite similar to the PCU with PWM charger. The main difference is in the efficiency because of the true MPPT design with a cutting edge DSP based design. The Vmpp ranges of 14-40V in 12V models and 28-60V in 24V models are the widest available in the market. The Open Circuit Voltage is a whopping ‘5 times the DCV’ for 12V models and ‘3 times the DCV’ for 24V models. This also has an LC Display to show the MPPT On/Off, MPPT o/p voltage and current and all the trip messages. Automatic mains Disconnect-Reconnect function enables maximum usage of solar power. Like in all our other models, even this PCU boasts of a perfect current sharing of Solar with Mains for the best functioning of the intended usage. This feature ensures preference for solar power, proper charging of batteries by efficiently harnessing both soalr and mains power and also that battery is never over charged by both sources loading each other.
MPCU is available in 1kVA(24V) and 2kVA(24V) models
Off-Grid PCU (with MPPT Charge Controller) |
INPUT – SOLAR |
Solar Charger (MPPT) |
12V System |
24V System |
Panel Voltage Nominal (V) |
24V* |
36V* |
Maximum Open circuit Voltage (Voc) |
66V |
66V |
Vmpp |
14V -40V |
28V -60V |
Charger Type |
MPPT Charger, current sharing with mains |
Maximum Charging current (from Solar) |
10A/20A |
Maximum Panel Wattage (Wp) |
200W/400W |
400W/800W |
Mains Auto disconnect voltage |
14.6V ±1% |
29.2V ±1% |
Mains Auto Reconnect voltage |
11.8V ±1% |
23.6V ±1% |
LCD Parameters |
MPPT On/Off, MPPT o/p volatge & current, trip messages |
Protections |
Lightning, Panel reverse polarity, battery reverse polarity(fuse), i/p high voltage, short sircuit, reverse discharge block |
* The nominal voltage given is applicable only for Normal Poly-crystalline panel with max Voc 22V/44V |
For other types of panels with non standard Vmp & Voc like in Mono-crystalline, parameters are different |
INPUT – GRID |
Normal Voltage |
220V AC Single Phase |
Input Voltage window - UPS Mode |
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170 VAC to 270VAC |
Input Voltage window - Inverter Mode |
120 VAC to 290VAC |
Normal Frequency |
50 Hz ±6 |
Minimum Mains voltage for charging |
120V AC |
Maximum charging current |
15A(From Mains) |
OUTPUT |
Output Voltage |
220V AC Single Phase |
Power Factor |
0.8 lag to Unity |
Nominal Voltage / Regulation |
220V AC Single Phase +/- 5% |
Frequency |
50Hz +/- 0.1 Hz |
Waveform |
Pure Sine Wave |
Total Harmonic Distortion |
< 2% for linear load, <3% for non linear load |
Over Load capacity |
150% for 60Sec |
Inverter Type |
PWM |
Transient Response |
Remains within +/-5%, Recovers to 98% within one cycle |
Changeover Time |
<10mS / <4mS (optional) |
Peak Inverter Efficiency |
>90% |
Protections |
Input under/over voltage, Battery deep discharge, Battery overcharge, Output under/over voltage, Output Overload, Output Short Circuit, Anti-MOSFET blast lock on battery disconnection |
(4) On Grid PCU with MPPT Charger (GPCU) :
When you want to depend solely/only on Solar power, or for high power solar applications such as solar power plants, you can use this extremely rugged and highly intelligent PCU. This uses a MPPT charge controller which has a peak efficiency >95% and harnesses all the input sources – Solar, Battery, Grid power / DG – in the most economical and application friendly way. You can connect any kind of critical load since it uses an Online topology.
The most fascinating feature of this PCU is that when solar is available, the grid doesn’t get switched off but grid power is also not used for charging or for load. And batteries do not get discharged when solar is available. Solar charges the batteries and also powers the load. When solar is not available, you have a choice of using the mains or battery. Battery capacity could be very low, if you do not want to store the power.
The DC input to the MPPT can be between +20% and +50% of the system DCV. The Vmpp per panel is between 13 & 19V and the open circuit voltage is two and half times the Nominal Voltage. The maximum Charging current that can be set is 40A which covers all normally possible battery capacities. LCD displays all MPPT parameters and all state of the art protections are provided for smooth functioning and long life.
The Grid (Mains) charger is also highly efficient because it is Power Factor Corrected (IGBT Rectifier). GPCU is available from 48VDC to 360VDC and from 1kVA to 100kVA capacities. Pure sine wave output and galvanic isolation between i/p & o/p are other features that make this PCU, a true winner.
On-Grid PCU (with MPPT Charge Controller) |
Capacity (KVA) 1/2/3/5 7.5/10 5/20/30 40/60/80/100/120/160 |
SOLAR CHARGER (MPPT) |
DC Voltage (DCV) |
48/72/96/120/144/192/240/360 |
Nominal Input Voltage (V) |
[+20%(min) to +50%(max)] of DCV |
Maximum PV open circuit Voltage (Voc) |
2.5 times nominal voltage |
Vmpp (per panel) |
13V-19V |
Maximum PV Wattage(Wp) |
1.5x (x = PCU capacity) |
Maximum charging current settable(From Solar) |
40A |
Minimum charging current settable(From Solar) |
1.5A |
Maximum MPPT O/P Current |
300A |
Default Priority |
Solar-Mains-Battery (various combinations possible) |
Peak Efficiency |
>95% |
Display Parameters (LCD) |
Panel Voltage, MPPT o/p Voltage, MPPT o/p Current, Units generated, MPPT o/p Power, Temperature, Trip/Status messages |
Protections (Solar section) |
Lightning,High voltage,Over current,Short circuit, Panel Reverse polarity, Battery Reverse Polarity (fuse), Battery Over charging,over Temperature |
INPUT – GRID |
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1Φ 1Φ/3Φ 3Φ 3Φ |
Voltage Range |
230v ± 20% in Single Phase 415v ± 20% in Three Phase |
Frequency Range |
50 Hz/60 Hz ± 4% |
Power Factor |
>0.9 in Single Phase >0.95 in Single Phase |
THD |
>4% |
Topology Used |
IGBT Rectifier |
OUTPUT |
1Φ 1Φ 1Φ/3Φ 1Φ/3Φ |
Voltage |
230v 230v 230v/ 415v 230v/ 415v |
Tolerance/Regulation |
Static Condition |
± 1% |
Dynamic Condition |
± 4% For 100% Step Load |
Frequency(Configurable) |
50 Hz/60 Hz ± 0.1Hz |
Power Factor |
0.8Rated (0.6 to unity lagging) |
Admissible Crest factor |
4 ≈ 1 |
Waveform |
Sinusoidal(Pure Sinewave) |
THD |
≤ 2% for linear loads,≤ 4% for non linear loads |
Overload |
150% for 1 Min., 125% for 10 Min. |
Efficiency |
>92% |
Inverter Topology Control Section |
Micro controller / DSP based |
Inverter Topology Power Section |
IGBT Based MPWM with instantaneous Waveform Correction |
DC Charactereristics |
Nominal Float Voltage |
48V/72V/96V/120V 120/144V/192/240V 240V/360V 360V |
Battery Type |
SMF/TUBULAR |
Protections |
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Rectifier |
Input Circuit Breaker,Input Surge protection,High/low voltage protection, |
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Over temperature, Rectifier Output short circuit, over current protection |
Battery |
Charger over voltage and over current limit, Battery over charge trip with latching |
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Battery deep discharge cut off,HRC Fuse protection |
Invertor |
O/P Over load, Short circuit, Over temperature,Over Voltage,Pulse Pulse current limit |
Protections (Solar section) |
Lightning,High voltage,Over current,Short circuit, Reverse polarity |
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Battery Over charging,over Temperature |
Display Parameters (LCD) |
Displays Input voltage,Output Voltage,Battery Voltage,Load Current, |
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Output Frequency. Status messages for Mains Failure,Low Battery,Over Load |
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Over voltage,Battery Low |
Interface |
RS232 |
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Potential free contacts for Low battery(Optional) |
Environment |
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Ambient Temperature |
0⁰C to 50⁰C |
Relative Humidity |
5% to 95% condensed |
Maximum Altitude |
6660 ft / 2000m |
Sound Level @ 1m |
<45dbA <60dBA |
Cooling |
Forced Air |
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