Custom PCS Power Conversion System

Product Model
LEG-50K / 100K / 250K-TT

Power conversion system can control the charging and discharging process of the battery and convert the AC and DC. It can directly supply power to the AC load without power grid.

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Product Detail

Application scenarios

Industrial and commercial peak shaving and valley filling energy-saving applications, excessive energy consumption applications,electric energy regulation and SVG at the power grid and power generation side, microgrid and island applications, supporting emergency power supply applications in disaster sites, subway stations, airport terminals, military bases and other special occasions.

Product Features

Reliable and Safe

Can be used in high-altitude, alpine areas
Power frequency topology, industrial design
AC and DC dual power backup， ensure the power supply of the control system
High power density，Max. efficiency up to 97.6%
High-performance DSP，optimized control circuit design, better performance
Wide DC input voltage range design，compatible with various batteries
Functions of grid connected charging & discharging and off-grid independent inverter
Reactive power and active power are adjustable
Support diesel generator access, seamless switching between on-grid and off-grid (optional)
Cold start with load, Three-phase 100% unbalanced load, strong load adaptability
Friendly grid adaptability，accept power grid dispatch
Intelligent management control strategy, multiple working modes, online or remote switching

Technical Specifications

Model	LEG-50K-TT	LEG-100K-TT	LEG-250K-TT
DC Input (PV)
Max. DC Voltage [V]	850
Operating Voltage range [V]	500~850
AC Output (On Grid)
Rated Power [kW]	50	100	250
Max. AC Power [kVA]	55	110	275
Max. AC Current [A]	79	159	397
Rated Grid Voltage [V]	400
Rated Grid Frequency [Hz]	50/60
Rated Frequency Range [Hz]	45~55/55~65
Power Factor at Rated Power	>0.99
THDi	<3% (Rated power)
Power Factor	0.9 leading to 0.9 lagging
AC Output System	3W/N/PE
AC Output (Off Grid)
Rated Output Power [kW]	50	100	250
Max.Output Power [kVA]	55	110	275
Rated Output Voltage [V]	400
Rated Frequency [Hz]	50/60
THDu	<3% (Linear load)
Unbalanced Load Capacity	100%
Protection
DC Overvoltage Protection	Yes
DC Short Circuit Protection	Yes
AC Overvoltage Protection	Yes
Polarity Reverse Protection	Yes
Module Temperature Protection	Yes
Efficiency
Max. Efficiency	96.0%		97.0%
General Parameters
Dimensions (WDH)[mm]	10008002015		100010502260
Net Weight [kg]	650	750	1600
Isolation Transformer	Yes
Temperature Range [℃]	30~+55
Shutdown Self power Consumption [W]	<50
Cooling Method	Forced air cooling
Installation Style	IP20
Relative Humidity	0~95%,non-condensing
Max. Altitude [m]	5000 (＞3000 Derating)
Display Mode	Touch screen
Dispatching Communication Mode	Ethernet,RS485
BMS Communication Mode	RS485,CAN
Communication Protocol	Modbus,IEC104

Application Principle

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