KY-EST SERIES
Hybrid Inverter/Three-phase 10KW ~ 20KW
FFD POWER KY-EST Series Hybrid Inverter/Three-phase
KY-EST12KH/ KY-EST15KH/ KY-EST17KH/ KY-EST20KH series inverters, also known as hybrid or bidirectional solar inverters, are suitable for energy management of solar energy systems .such as photovoltaics, cells, loads, and power grids. The electricity generated by photovoltaic panels is used for residential electricity, and excess electrical energy can be stored in batteries. When the battery is fully charged, the user can send excess power to the grid.
When the photovoltaic power is not enough to meet the user’s load demand, the battery will discharge to the load. If there is not enough energy storage in the battery, the grid will supply power to the load through the system.
The inverter has a transformerless topology and is not isolated between the DC input and AC
output. Adaptive PV models must meet IEC61730 Class A standards.The energy management system is shown in Figure
KY-EST Series Hybrid
Inverter/Three-phase 10KW-20KW
- Smart Switching : UPS function,supporting three-phase imbalance,on/off grid switch within 10ms.
- Wide voltage Input Range: Wide PV voltage input range 180V-950V,wide batteries voltage range 180V-550V
- Smart and Simple:Small size ,light and easy to install,support GPRS/WIFI/RS485/USB upgrad
- High-efficiency:Max Efficienty 98.2%,smart MPPT,tracing efficiency up to 99.9%
- Safety and Reliable:IP65 protection,high electricity quality,no interference with other equipment,low radiation
- PV & Storage System : Intergrated PV and storage system model,high self-use efficienty,with UPS Uninterrupted Power Supply
FFD POWER KY-EST Series Hybrid Inverter/Three-phase Technical Data
| MODEL | KY-EST10KH | KY-EST15KH | KY-EST20KH |
|---|---|---|---|
| EFFICIENCY | |||
| Efficiency | >98.2% | >98.2% | >98.2% |
| PV INPUT | |||
| Max.PV Input Power（W） | 13000W | 19500W | 26000W |
| Max.PV Input Voltage（V） | 1000V | 1000V | 1000V |
| MPPT Operation Voltage Range (V) | 180-950 | 180-950 | 180-950 |
| Number of MPPT/PV Strings | 1/2 | 2/2 | 2/2 |
| Max.PV Input Current (A) | 15/15 | 12.5/23 | 23/23 |
| Short-circuit Current of PV Input (A) | 18/18 | 15/30 | 30/30 |
| Battery | |||
| Max Input/Output Voltage (V) | 550 | 700 | 700 |
| Operating Voltage Range (V） | 180-550 | 180-700 | 180-700 |
| Max Charge/ Discharge Current (A) | 25/30 | 50/50 | 50/50 |
| Max Input/Output Power (W) | 20000/20000 | 15000/15000 | 20000/20000 |
| Battery Type | Li-ion/Lead-acid | Li-ion/Lead-acid | Li-ion/Lead-acid |
| AC Input and Output | |||
| Rated Power （W） | 10000 | 15000 | 20000 |
| Max. Apparent AC Power (VA) | 10000 | 15000 | 20000 |
| Nominal AC Voltage （Vac） | 380 | 380 | 380 |
| AC Power Frequency（Hz） | 50/60 | 50/60 | 50/60 |
| Max. AC Output Current (A) | 15 | 22 | 31 |
| Power Factor Range | ~ 1(Adjustable from 0.8 leading to 0.8 lagging) | ~ 1(Adjustable from 0.8 leading to 0.8 lagging) | ~ 1(Adjustable from 0.8 leading to 0.8 lagging) |
| OutputTHDi(@Nominal Output) | <3% | <3% | <3% |
| Off-Grid AC Output (Back-up AC Output) | |||
| Rated Output Power （W） | 10000 | 15000 | 20000 |
| Max. Apparent AC Output Power （VA） | 10000 | 15000 | 20000 |
| Nominal AC Output Voltage (Vac) | 380 | 380 | 380 |
| AC Power Frequency (Hz) | 50/60 | 50/60 | 50/60 |
| Max. AC output Current (A) | 15 | 22 | 31 |
| General Data | |||
| Operating Temperature Range | -25℃——+60℃（>45℃ derating) | -25℃——+60℃（>45℃ derating) | -25℃——+60℃（>45℃ derating) |
| Operating Altitude ( m ) | < 4000 | < 4000 | < 4000 |
| Noise (dB) | < 45 | < 45 | < 45 |
| Topology | Transformerless | Transformerless | Transformerless |
| Cooling Method | Natural Convection | Natural Convection | Natural Convection |
| Ingress Protection Rating | IP65 | IP65 | IP65 |
| Relative Humidity | 0—100% No Condensation | 0—100% No Condensation | 0—100% No Condensation |
| DC Connection Type | MC/Amphenol/Phoenix | MC/Amphenol/Phoenix | MC/Amphenol/Phoenix |
| AC Connection Type | Plug-in Connector | Plug-in Connector | Plug-in Connector |
| Display | LCD | LCD | LCD |
| Communication With Portal | RS485（ WiFi/GPRS Optional ） | RS485（ WiFi/GPRS Optional ） | RS485（ WiFi/GPRS Optional ） |
| Communication With BMS | CAN | CAN | CAN |
| Communication With Meter | RS485 | RS485 | RS485 |
| Mounting Method | Wall-mounting Bracket | Wall-mounting Bracket | Wall-mounting Bracket |
| Dimensions ( W*D*H mm ) | 505*570*220 | 505*630*220 | 505*630*220 |
| Weight （kg） | 23 | 23 | 24 |
| Certification | |||
| Safety | IEC62109-1/-2 | IEC62109-1/-2 | IEC62109-1/-2 |
| EMC | EN61000-6-1/-2/-3，IEC61000 | EN61000-6-1/-2/-3，IEC61000 | EN61000-6-1/-2/-3，IEC61000 |
| On-Grid Standard | AS4777.2，NRS097-2-1：2017，PN-EN50549-1：2019，VDE-AR-N 4105：2018，EN50549-1：2019+AC：2019-04 | AS4777.2，NRS097-2-1：2017，PN-EN50549-1：2019，VDE-AR-N 4105：2018，EN50549-1：2019+AC：2019-04 | AS4777.2，NRS097-2-1：2017，PN-EN50549-1：2019，VDE-AR-N 4105：2018，EN50549-1：2019+AC：2019-04 |