Liebert ESU

solar module manufacturer

Liebert ESU

Liebert ESU (Energy Storage Unit)
Features:
 Micro processor based design
 Bi-directional Solar Inverter with MPPT charge
controller
 High Efficiency & Reliability
 20 years design life. Tropicalised design
 Hybrid inverter Operation with Wind / DG
 Inbuilt LCD display
 Sophisticated local & remote monitoring system
(Optional)
 Built in output isolation transformer
 Compliance to International test standards

Micro processor / DSP based MPPT Design
 High efficiency & Reliability
 20 years design life. Tropicalised design
 Inbuilt LCD display
 Sophisticated local & remote monitoring system
(Optional)
 Built in output isolation transformer
 Compliance to International test standards

Liebert ESU is single / three phase output, bi-directional inverter system. ESU operates in parallel with the grid utility. Solar Photovoltaic panels convert solar energy into electrical energy as DC power. This DC power is used to charge the batteries through a charge controller and also used for the load through inverter. Additional energy is exported to the grid.

Liebert EEU is single / three phase output inverter, with Grid interactive feature. Solar Photovoltaic panels converts solar energy into electrical energy as DC power. This DC power becomes input for the EEU inverter. The inverter converts it into conventional AC power, and with its state of the art Grid synchronization design, this AC power is fed to the supply grid.

Specifications: Liebert ESU: 1-10 kW, 1 Phase

Parameters    
 
SPECIFICATIONS    
 
Parameters    
 
1wk 2wk 3wk 4wk 5wk 6wk 10wk
inverter  model Liebert ESU: 010 -bidirectional true sine wave  
input array input 40V to 88VDC 80V to 176VDC 100-220VDC
max .open circuit voltage 88VDC
 
176VDC 220VDC
mppt voltage range 44V to 79VDC   88V to 158VDC 110V 198VDC
charger controller MPPT
bettery      
Voltage 48VDC 96VDC 120VDC
max .grid charging current 18A 35A 52A 35A 44A 52A 74A
type SMF/lead acid wet cel
output  
power capacity     1kw 2kw 3kw 4kw 5kw 6kw 10kw
load power factor     0.8lag to unity 
voltage/frequency     230vac,single phase ,50 HZ(+/-0.5%)stand alone mode
regulation +/-2%
voltage distortion <3%at linear load <2%at linear load
grid traking voltage/frequency 230V,single phase(+/-10%).50Hz(+/-3Hz)
over load 125% for 4 minutes and 150% for 1minute 125% for 10 minutes and 150% for 1minute
peak efficiency (1) 85% 87% 87% 89% 90% 90% 91%
operating modes 1.Stand alone 2.grid interactive 3.off line
environmental  
Operating temperature  0 to 40C
storage  temperature  -10to +550C
relative humidity  Upto 95%RH non condensing
acousitics  noise <55 dB  <62dB 
altitude <1000meter above sea level
mechanical  
IP  IP 20
cooling  forced cool
dimension WxDxH 225x650x600 250x650x700 400x800x1000
weight in kg.(approx.) 50 55 60 77 83 90 240
LCD display Inbuilt


 

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