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Page 1
Discover the Difference
SOLAR MICROINVERTER
_300w
(그림)
Company focusing on environment and human
E&H Co., Ltd.
Page 2
i-Sun microinverter is the history and know-how of 40 year-long E&H Co., Ltd. in building
the photovoltaic power plants .
300W class
15-year warranty
Easy
Long Life Time
Safe
New & Renewable Energy
-Year established: 1973 (incorporated in 1998)
-Line of business: Manufacture and construction of the product related with new & renewable
energy
-Type of company: Venture enterprise; Inno-biz company; ISO certified and specialized in new &
renewable energy
-Main products: photovoltaic system, solar PV module, solar PV microinverter, LED lights
Page 3
Photovoltaic microinverter is a dispersion type that may directly produce AC power by panel
units by integrating ultra-small type inverter in each solar PV panel in the photovoltaic
system. This is the dispersion type system contrary to the type that converts DC power
produced in solar PV panel array into AC through the inverter installed separately, which is
the existing central inverter occupying the current inverter market.
Existing central inverter requires the place for a separate DC cable and inverter to be
installed as panel and inverter are independently installed, and the expense of installation
should be increased inevitably as a separate facility must be installed to minimize the
exposure to the external environment as the case may be.
In addition, it requires connection of several panels in DC type, and therefore results in
critical loss in power generation efficiency owing to ‘Christmas light effect’ that may
influence on the entire panel at the occurrence of any error in the specific module. In
addition, it may cause the occurrence of miss match following multi-step power transmission.
Furthermore, it has disadvantages such as the problem that it cannot be grasped
immediately when there appear any trouble in the specific panel, the short life problem as
the inverter operating area is operated for 24 hours a day regardless of sunshine amount.
E&H came to develop i-Sun brand microinverter in new concept that may cope with such
disadvantages of central inverter based on the past 40 years history and knowhow in
photovoltaic power plants construction and put it into mass production.
Microinverter is a new product that may replace the disadvantages of the existing central
inverter. This method mounts one inverter per solar PV module enabling free addition of
module, and provides improved power generation efficiency up to 15% compared with the
central inverter through realization of MPPT of individual module, and furthermore provides
long life for 25 years or longer through low voltage technology.
Page 4~5
(상단)
Page 4
Why E&H i-Sun Microinverter
Currently more than 90% of photovoltaic power plants are designed and installed with
central inverter system. These systems change DC power obtained by solar PV module arrays
into AC through a single inverter, which disables to trace MPP value of each module resulting
in loss of power caused by low voltage following at the occurrence of voltage difference by
arrays.
On the other hand, i-Sun Microinverter supplied by E&H is designed and installed with a new
concept dispersion type inverter system of photovoltaic power plant. With ultra-small
lightweight individual inverter mounted on the individual module, it generates AC by module
units increasing production of power through prevention of miss match loss and Christmas
light effect.
Page 5
(그림)
우측 상단
300W class ultra micro power generator
‘i-Sun Microinverter
It converts low voltage of DC 22~40V produced in each PV module into AC220V. As the
300W class inverter designed by adopting the technology that realizes minimization of
power conversion loss and maximization of power production, it enables isolated operation
of 300w class solar cell module.
(좌측 하단)
‘i-Sun Station
It enables to monitor operation status and error status of photovoltaic system with i-Sun
Microinverter mounted by modules on a real-time basis and transfers such data to the
central server.
‘i-Sun Monitoring, as the operation program that realizes remote monitoring through single
or web in the place where photovoltaic system is built, is a comprehensive system that
manages data collected through i-Sun Station.
Page 4~5 공통 하단
(Discover the Difference)
Central inverter is built with DC cable up to the inverter resulting in the loss of power on the
cable, and therefore it requires securing the space for inverter to be installed separately. In
addition, it has inconvenience that separate equipment should be used and the power loss
may appear caused by miss match following complexity of the system. However, i-Sun
Microinverter may remove all these advantages and obtain the effects of saving the
installation expense and increasing the power production in addition.
[Improvement of amount of generation through removal of Christmas light]
‘i-Sun Microinverter can overcome Christmas light effect that is the most critical
disadvantage of existing central inverter. In case of central type inverter, it greatly drops
generation efficiency as simultaneously the generation efficiency of ambient panel decreases
like the continuous flashing of the lamps near the Christmas tree when the obstacles (shade,
snow, leaves, etc.) cover the panel. However, microinverter performs individual generation by
panels, and therefore the normal panels except the area covered by obstacles continue the
generation at the maximum efficiency, resulting in the effect of improving the amount of
generation up to 15% compared with the existing central type.
[Safety/duration improvement and long life]
‘i-Sun Microinverter is wrapped with rigid silicone with IP65 grade in terms of
duration, which may perform generation under the extreme situation such as snow,
rain, heat wave, sand storm, etc. In addition, in case of existing central inverter, it
is connected from a single inverter to several solar PV panels resulting in the flow
of substantial amount of high voltage. This may cause vulnerability to fire and
reduction of life as well. However, microinverter by individual panels is operated
on the low voltage interrupting the risk of fire and providing long life for 25 years
or longer.
[Overcoming the restriction of installation]
It allows free expansion of the panels on a variety of spaces. In case of existing
central inverter, it requires composition of array satisfied to electrical specification
of inverter and therefore restricts free expansion of installation capacity. Especially,
in case of adopting microinverter to house with narrow space, spare space of
apartment or veranda, etc., it may enable the generation in a variety of types.
[Maintainability]
‘i-Sun Microinverter may deliver 24-hour generation status by individual panels to
the users as it has the individual panel being mounted. Existing central inverter did
not allow the user to immediately detect the location and problem when there
occurred the failure of specific panel as it is connected from a single inverter to
multiple panels. However, microinverter enables prompt maintenance and action
through individual panel real-time monitoring system. Especially in case of large
capacity commercial solar PV power plant, it may obtain the effect of minimizing
A/S lead time following the occurrence of trouble in the panel and maximizing the
amount of generation.
[Advantage in BIPV installation]
Especially when there occurs error in the BIPV power generation facility in
building slope mounting type or wall mounting type, the existing central inverter
requires checking such error after removing several panels connected with the
inverter. However ‘i-Sun Microinverter is relatively advantageous in a/s service as
it requires removing the applicable panel only.
[15 Years Warranty]
Page 6
‘i-Sun Microinverter
It converts low voltage of DC 22~40V produced in each PV module into AC220V As the
300W class inverter designed by adopting the technology that realizes minimization of
power conversion loss and maximization of power production, it enables isolated operation
of 300w class solar cell module.
Patent “First technology in the world”
AC module integrated type inverter
BIPV AC module inverter (duct type)
-Certified as new & renewable energy facility (PV-GTI-1-0089)
-Registered the patent for the high frequency resonant power conversion system through
modulation of pulse width in high frequency phase shift type on the 26th July 2011
-Registered the patent for the building integrated type photovoltaic system equipped with
microinverter on the 1st September 2011
-Registered the patent for AC type solar PV module improving the output performance of
photovoltaic system on the 7th October 2011
Feature
[Simple installation]
-Simply mounted on the PV module frame
-Using solar PV connector interrupting the connection between module and inverter
-No need to have separate DC wiring work and DC connection box
-Can be installed on narrow space such as parking lot, pagora, etc.
[Easiness in capacity expansion]
-Allowing the expansion of free number of modules in a variety of installation spaces
[Safety/efficiency]
- MPPT - Using most of the power produced by the module with the amount of generation
-The module that undertook error doesn’t influence on the ambient module maximizing the
power production
-Prevents loss of power by DC line through AC power production by individual module units
-Prevents electric shock risk by using low AC power rather than high-voltage DC
[Allowing monitoring by individual module units]
-Allowing prompt grasping and supplementing at the occurrence of any error of individual
module
-Power produced by individual module is converted into data – enables verification of quality
페이지 7
(그림)
[Central inverter system]
Existing central inverter is the system that transmits power in such a manner of transmitting
DC power produced in several panels to a single inverter and converting it into AC in the
inverter. This method is operated by inverter-level monitoring, and has disadvantage that the
error should be checked for a multiple number of panels connected with a single inverter at
the occurrence of trouble on the specific panel.
(그림)
DC connection box – inverter – AC – AC distribution panel board – Building
Monitoring
[i-Sun Microinverter System]
‘i-Sun Microinverter is the system that directly supplies AC power from the individual panel
as the solar PV panel integrated type inverter. This is the method of monitoring system
operation type at the individual panel level, which enables to quickly grasp and supplement
the trouble of specific panel, and therefore may greatly reduce loss of power production
compared with the existing central inverter. In addition, this method is simple in the power
transmission process, which may prevent the drop in the system efficiency caused by miss
match.
AC – AC distribution panel board – Building
Monitoring

Power production improvement effect
Item
3kWp
102kWp
Yearly amount of generation during
3,942
134,028
Remark
normal operation
Loss from miss
Existing
181.3
6,165.3
Applying
4.6%
match
i-Sun
0
0
as the loss rate
of miss match
Loss
from
Existing
75.6
1,377
Based
on
the
i-Sun
5.4
5.4
occurrence
of
shade
shade
15
(Christmas light
days
effect)
for one specific
occurrence
the
of
for
per
year
module
Loss
following
the difference of
A/S period
Existing
32.4
2,570
In case of i-Sun,
i-Sun
1.4
4.4
A/S
period
reduction
standard
is
-
3kW
(1
day),
102kW (3 days).
But calculated at
0.13 and 0.012
days based on
non-operation
of 2 modules.
Loss
from
DC
cable
Existing
74.9
2,546.5
Applying
1.9%
i-Sun
0
0
as the loss from
DC cable
(Sub total)
Yearly
actual
amount
of
Existing
(364.2)
(12,665.8)
i-Sun
(6.8)
(9.8)
Existing
3,577.8
121,362.2
Larger
i-Sun
3.935.23
134,018.2
reduces
generation
capacity
more
loss
rate.
Shorten
the
replacement
time
inverter
when
has
trouble.
(좌측 그림)
1) What is miss match?
Loss that maximum output of solar PV module connected in direct and parallel series
becomes smaller than the sum of module output measured under the same condition
caused by irregularity of voltage/current feature following the change
in the
environment and load condition  PV array changes in i-v characteristic curve
depending on the environmental change and load condition.
a) Loss occurring in case of deviating from MPP point
b) Loss following the MPP control error of PCS
2) Christmas light effect? Phenomenon that the elements affecting the module
efficiency (dust, debris, shade, etc.) influences on the other modules arranged in a
series.
(그림)
Existing central type
(그림)
i-Sun microinverter
-Influencing on the entire module
within the same PCS
- Influencing on the applicable module only
3) What is DC cable loss?
Loss of power that occurs for the DC electricity produced in
the PV module until it enters into the inverter in the cable
Page 8
‘i-Sun Monitoring
Existing photovoltaic system indicates only the data output from the inverter regarding the
error occurring in each component of solar PV module, inverter and connection box, which
disables prior recognition of the entire system troubles resulting in the loss of amount of
generation.
‘i-Sun Monitoring enables complimentary action through diagnosis of operating status by
individual module in order to improve such problems.
1st generation type
2nd generation type
3rd generation type
Existing inverter type
Existing inverter type
i-Sun
monitoring method
monitoring method
monitoring method
-Simple
-Array-wise
-Module-wise
method
monitoring method
monitoring method
-Cabled
-Cabled
-RS485
monitoring
communication
Amount
of
line
communication
line
Microinverter
-PLC/WiFi method
(inverter-RTU)
(inverter-RTU)
method
method
v
v
v
v
v
V
V
v
generation
Weather condition
Array-wise
module
monitoring
Individual
module
V
monitoring
Feature
-Measuring current/voltage of photovoltaic power plants
-Checking the error by solar PV modules and inverter, connection box
-Issuing periodical report for operation particulars of photovoltaic power plants (hourly, daily,
weekly, monthly and yearly)
-Enhancing the reliance of photovoltaic power plants data and securing maintenance of
optimized system
-Comparison and analysis of mutual operation through analyzing PCS and connection box
synchronization data
-Secure of the reliance of generation facility and duration of program (Maintenance of
preciseness of data for long time)
-Web Monitoring function: Monitoring on line after connecting through internet web
-Smart Grid and Green IT linking function
-SMS function: Able to cope with the trouble immediately through mobile message at the
occurrence of any error in the photovoltaic power plant
-Enables to build integrated monitoring system with the other new & renewable energy
source
-Minimizes the loss of the amount of generation of the power plant
-Maximizes the entire efficiency of power generating facility
-Extends the life of power generating facility through operation of optimized maintenance
[Chart & Graph]
-Module/inverter ID information
- Connection box information: DC voltage, summing current, internal temperature of the
connection box
- Information by modules
- Information of inverter
- Information of the amount of generation
- Information of CO2 mitigation amount
- Selection of information by components (indicated in graph and table)
- Real time information by module
- Real time information of inverter
- Real time information of atmosphere/surface temperature
- Real time and accumulated amount of generation information
[Alert]
-Grasps troubles on the entire system and generating system
- Level, alerting data, alerting time, alerting contents – current and past information function
[Report & Download]
-Hourly/daily/weekly/yearly reports
-Module-wise report
-Inverter information report
-Past information by modules
- Past information of inverter
(우측 그림)
Change in module color following the amount of output
Diagnosis of module-wise operation status!!

Data transmission method of i-Sun Microinverter Monitoring System
Method
Existing
RS-485
Transmission
Transmission
method
distance
-Serial
Approx. 1 km
Characteristic
-Requiring
the
communication
installation of a
method
separate
that
externally
transmits
communication
data
line
bit in one bit
unit
i-Sun
PLC/WiFi
-Through
PLC
-Data
is
communication
transferred
chip enclosed in
through a cable
the
line on a real-
individual
microinverter,
time
basis
data
is
without
the
transferred
to
necessity
of
data information
installing
a
collecting device
separate
of i-Sun Station
communication
/ transferred to
line.
web using 485
WiFi method
‘i-Sun Station
‘i-Sun Station is the system that monitors operation status and error status of photovoltaic
system with i-sun inverter mounted on by modules on a real-time basis and transfers them
to the central server.
Feature
-Data gathering by modules/inverters (Current amount of generation, accumulated amount
of generation, input, output)
-Grasps the amount of power of photovoltaic power plants produced in the individual
module
-Checks the failure of individual solar PV module and i-Sun Micorinverter
-Grasps electrical feature of solar cell panel installed.
[Utilization effect]
-Checks the failure of module and i-Sun Microinverter through remote control
-Quick after service
페이지 10
History
2014
-Acquired
the
qualification
of
new
&
renewable
energy
equipment
supplier
with
microinverter (Korea Energy Management Corp. )
-Selected as the High Seoul Brand Enterprise
2013
-Under Industry-Academy Joint Research Development on high-efficiency (15% or more)
solar cell electronic material (5 universities)
-Received screening inspection on the microinverter plant conducted by Korea Energy
Management Corp.
-Registered the patents for hetero battery type power storage system and solar PV Street
light using the said technology
-Acquired Q-Mark for grid tie photovoltaic system
-Awarded the citation from the head of Supply Administration (for contribution to MAS
activation)
-Entered into a supply agreement with the Supply Administration on distribution board,
distribution panel board purpose motor control board
-Acquired high-efficiency energy equipment/material certification for LED lighting fixture
2012
-Acquired UL, CED, and TUV for photovoltaic module
-Selected as an excellent solar PV enterprise by the Mayor of Seoul City
-Designated as A/S provider for new & renewable energy facility (solar PV field)
-Selected as the best supplier in delivery and satisfaction as result of evaluation
-Ranked as the 1st supplier in the performance
-Entered into the supply agreement on distribution board
-Performed KEMCO photovoltaic system project
2011
-Built a plant in Chuncheon Industrial Complex
-Acquired the patent for high frequency resonant power conversion system (PCS)
- Acquired the patent for integrated type photovoltaic system equipped with microinverter
- Acquired the patent for AC type solar cell module equipped with improved output
performance of photovoltaic system
- Performed KEMCO photovoltaic system project
2010
-Move the workplace of head office (Seoul Forest Kolon Digital Tower)
-Applied the patent for PV energy hybrid type module (radiation & conduction)
-Selected as 2018 Pyeongchang Low Carbon Winter Olympic Consulting Enterprise
- Performed KEMCO photovoltaic system project
2009
-Registered the E&H Affiliated Research Institute (Korea Institute for Advancement of
Technology)
-Registered GS certification for solar PV monitoring system (i-Sun)
-Built photovoltaic power plants in the golf course for the first time in Korea (Arigi CC
200kWp)
- Performed KEMCO photovoltaic system project
2008
-Changed the company name into E&H Co., Ltd.
-Selected as eco-friendly construction material in BIPV field by Gyeonghyang Housing
-Joined the Korea new & renewable energy Association
-Jointly operated the photovoltaic power plants in the ‘Green Start Hanmaeum’ event of the
Ministry of Environment
-Jointly performed the technical road map for thin film solar cell development with KISTI
-Installed Korea’s largest scale BIPV power generation system (Garden Five Ga/Da blocks 600
kWp)
- Performed KEMCO photovoltaic system project
2007
-Entered into a supply agreement in photovoltaic system with the Supply Administration
-Selected as an excellent enterprise in energy saving initiation by the Mayor of Seoul City
-Selected as an excellent construction hosted by KEMCO (KIA Motor Service Center)
-Registered as BIPV supplier to LG Chemical Co., Ltd.
-Registered as R&D exclusive department (Korea Institute for Advancement of Technology)
-Selected/Registered as Inno-Biz enterprise
-Performed KEMCO photovoltaic system project
2006
-Registered as venture enterprise
-Jointly
developed
solar
PV
technology
with
Korea
Institute
of
Energy
Research
(2006~2009/PV system optimization performance improving technology)
-Performed KEMCO photovoltaic system project
2005
-Participate in Industry-Academy Cluster Joint Technology by Seoul Strategic Energy Business
Group (2005~2007/Sejong University, KISTI, Ceramic Industry Research Institute, E&H)
-Performed KEMCO photovoltaic system project
2004
-Acquired ISO 9001: 2000 & KSA 9001: 2001 (TUV)
-Participate in PV system demonstration research project in the Chosun University Dormitory
Complex construction project
-Performed KEMCO photovoltaic system project
2003
-Performed the government’s model distribution of solar PV power generation
2002
-Performed the government’s model distribution of solar PV generation
2000
-Participate in photovoltaic system (Gwangju Demonstration Research Project)
-Built CCTV-purpose photovoltaic system on the expressway
1999
-Built the power source for metrological observation equipment using solar power
1997
-Sold OEM product under partnership with SOLE, Greece.
1996
-Built solar power structure for the first time in Korea
1991
- Sold OEM product under partnership with M.G.I, U.S.A (Fuel saver)
1988
-Selected as excellent equipment/material in the Energy Exhibition hosted by Ministry of
Energy and Resources
1986
-Selected as ‘Promising Enterprise’ by the Energy Resources Research Institute
-Received a letter of thanks for cooperation with energy consumption saving policy from the
government
1985
- Sold OEM product under partnership with Geordano, France
1983
-Built a solar heat cooling/heating system in the Korea Energy Management Corp. building
1978
-Awarded the excellence award at the 1st Energy Exhibition
1977
- Ray Pak is selected as No. 1 excellent product - developed by localization and exported to
U.S.A
1973
Found the company in the name of Korea Solar Energy Co., Ltd.
Page 11
E&H is specialized in new and renewable energy having installed and carried out approx.
2,000 projects at home and abroad.
(그림)
-Garden Five (TOOL) 252kW
–Matsumoto Nagano-ken Japan 786.24kW
-Songcheon High School, Incheon 60kW
-National Institute for Scientific Investigation
(Gyeongbuk Branch) 100kW
–Nagano-ken Dakasiki Japan 442.46kW
-Gwanmun Gym, Gwacheon 100kW
-Sindonga Familie Apt (Haengsin-dong Goyang) 50kW
Page 12
Specification
Item
Input
Output
Specification
Change in solar cell voltage
22~56 Vdc
SCOPE OF MPPT VOLTAGE
22~50 Vdc
Max. input current
12A
Controlling method
MPPT
Rated capacity
300W
Rated voltage/current
Grid voltage (AC 220V/1.4A)
Output
50Hz/60Hz (Sync operation
frequency/Variation
rate
with grid line)
Constant
1 phase 2 wires
Power factor
0.95 or more
Current distortion factor
Comprehensive 5% or more
Individual 3% or less
Controlling method
Prevention
of
PWM method
isolated
Within 0.5 second
operation
Overload
110%
Efficiency
93% or more
Cooling method
Natural cooling
Protective structure
IP 65
External dimension
239 x 191 x 54 mm
Gross weight
2.7 kg
External interface
PLC communication (RS485 & TCP/IP)
Monitoring terminal (option)
I-Sun Station (RS485 & TCP/IP)
Protecting function
Inverter
Input over voltage, output
short
circuit,
over
load,
protection of microinverter
being overheated, fuse short
circuit
grid
Prevention
of
isolated
operation, protection of grid
over
voltage/low
protection
of
frequency/low
voltage,
grid
over
frequency,
prevention of output short
circuit, over load, over heat
and DC output outflow
Operating environment
Ambient temperature
-10 ~ 65 degree C
Main storage temperature
-20 ~ 65 degree C
Ambient humidity
Relative humidity 5~90% or
less (Place where there is no
due)
Height/vibration
1,000m or less, 5.9m/sec2
(=0.6g) or less
Ambient environment
Where there is not corrosive
gas, flammable gas, oil mist,
dust, etc.
Head Office: 701 27 Seongsuyi-ro 7-gil Seongdong-gu Seoul (Seoul Forest Kolon Digital
Tower 2-cha) Tel) 02-323-3385 Fax) 02-323-7785
Plant: 30 2-gil Geodu Complex Dongnae-myeon Chuncheon Tel) 070-8633-2011 Fax) 033264-8823
[2페이지 카탈로그]
Company focusing on environment and human
E&H Co., Ltd.
Solar Microinverter
300W class
Do solar PV installation yourself
(그림)
“Can the power be produced with a plug on only??”
… Ultra mini inverter that can be installed by anybody in a simple and easy way
Feature
Simple installation – Can be installed by non-professional / Starts generation with the system
plugged only
Simple expansion of capacity – Independently operated by panels; Increase of capacity can
be made by addition of panel only
Installation on narrow area – Can be installed on a narrow area such as parking lot, pagora,
etc.
Installation on public facility – Power can be generated with MIC built-in panel on the facility
such as park street light, bus stop, etc.
Stability – There is no DC voltage and arc
Type
-Slab type
-Support type
-Roof type
Guarantees long life
“i-Sun is the history and know-how of 40 year-long E&H Co., Ltd. in building the
photovoltaic power plants .
New & Renewable Energy Facility Certified
(PV-GTI-1-0089)
Head Office: 701 27 Seongsuyi-ro 7-gil Seongdong-gu Seoul (Seoul Forest Kolon Digital
Tower 2-cha) Tel) 02-323-3385 Fax) 02-323-7785
Plant: 30 2-gil Geodu Complex Dongnae-myeon Chuncheon Tel) 070-8633-2011 Fax) 033264-8823
Increasing amount of generation but simplifying the installation!!!
You may increase power generation efficiency up to 15% compared with the existing system.
Microinverter is a new product that improves disadvantages of existing central type system.
This method adopts one inverter per one solar light module. Modules can be freely added; it
also increases power generation efficiency up to 15% compared with the existing system
through the realization of MPPT of individual module and provides long life for more than
25 years through low voltage technology.
“ i-Sun microinverter of E&H is an integrated panel ultra micro long life inverter that
converts DC power into AC 220V in an individual module unit.
Item
Input
Output
Specification
Change in solar cell voltage
22~56 Vdc
SCOPE OF MPPT VOLTAGE
22~50 Vdc
Max. input current
12A
Controlling method
MPPT
Rated capacity
300W
Rated voltage/current
Grid voltage (AC 220V/1.4A)
Output
50Hz/60Hz (Sync operation
frequency/Variation
rate
with grid line)
Constant
1 phase 2 wires
Controlling method
PWM method
Prevention
of
isolated
Within 0.5 second
operation
Overload
110%
Efficiency
93% or more
Cooling method
Natural cooling
Protective structure
IP 65
External dimension
239 x 191 x 54 mm
Protecting function
Gross weight
2.7 kg
Inverter
Input over voltage, output
short
circuit,
over
load,
protection of microinverter
being overheated, fuse short
circuit
Grid
Prevention
of
isolated
operation, protection of grid
over
voltage/low
protection
of
frequency/low
voltage,
grid
over
frequency,
prevention of output short
circuit, over load, over heat
and DC output outflow
Operating environment
Ambient temperature
-10 ~ 65 degree C
Main storage temperature
-20 ~ 65 degree C
Ambient humidity
Relative humidity 5~90% or
less (Place where there is no
due)
External interface
PLC communication (RS485 & TCP/IP)
-
Rate voltage and frequency: 20V 16A 60Hz
-
It exactly measures small stand-by power as well as power consumption.
-
It can be installed easily and used simply.
With amount of generation gauge connected to the inverter, you can see amount of
generation.
Present voltage, present current, operating time, operating power, expected monthly power,
present voltage (Error of measurement: within 0.2%)
Head Office: 701 27 Seongsuyi-ro 7-gil Seongdong-gu Seoul (Seoul Forest Kolon Digital
Tower 2-cha) Tel) 02-323-3385 Fax) 02-323-7785
Plant: 30 2-gil Geodu Complex Dongnae-myeon Chuncheon Tel) 070-8633-2011 Fax) 033264-8823
[4 페이지 카탈로그]
Page 1
Discover the Difference
SOLAR MICROINVERTER
_300w
Page 2
300W class
15-year warranty
Easy
Long Life Time
Safe
New & Renewable Energy
‘i-Sun microinverter is the most efficient microinverter in Korea, which is the product adopting the
latest innovative technology maximizing the performance of photovoltaic system based on the
3rd-generation technology of E&H Co., Ltd.
Module unit monitoring instead of the existing array typed monitoring system!!
User can detect and manage the monitoring through web on a remote control system
It judges the error of individual module, and enables removing the difficulty in A/S management
and copes with trouble quickly.
It realizes module-wise inverter mounting method, is easy in expanding the solar cell module, and
simplifies the installation. In addition, it does not require any separate PCS space.
i-
Sun Microinverter System
Microinverter being mounted on ‘each’ module.
1) 300W class small-size inverter
i-Sun Microinverter
2) i-Sun Station
3) i-Sun Monitoring
(2) i-Sun Station enables to monitor operation status and error status of photovoltaic system
with i-Sun Microinverter mounted by modules on a real-time basis and transfer such data to
the central server.
-Communication method: PLC real-time communication
-Data bus-bus communication method: RS485 or TCP/IP
-Other function: Remote on/off control
[Differentiation from existing product]
-Grasps the amount of power generation of photovoltaic power plant that is produced in the
individual module
-Checks the failure of individual solar PV module and i-Sun Micorinverter
-Grasps electrical feature of solar cell panel installed.
[Utilization effect]
-Checks the failure of module and i-Sun Microinverter through remote control
-Quick after service
(3)
‘i-Sun Monitoring, as the operation program that realizes remote monitoring through single
or web in the place where photovoltaic system is built, is a comprehensive system that
manages data collected through i-Sun Station.
[Differentiation from existing product]
-Grasps the amount of power generation of photovoltaic power plants that is produced in
the individual module
-Checks the failure of individual solar PV module and i-Sun Micorinverter
-Grasps electrical feature of solar cell panel installed
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You just think about the capacity of facility.
You can design the capacity of facility for yourself as it doesn’t need construction of
direct/parallel series separately for mini power plant in your veranda to medium-large size
photovoltaic plant.
central
type(general
system
installation
i-Sun installation method of E&H
method)
Installation
Installation
-Central type
-Individual dispersion type
-To be installed by professional
-Can be mounted simply on PV module
frame
-Solar cell module can be expanded easily
and its installation is easy
-No need of separate DC wiring method and
DC connection box
Performance
Performance
-One module influences on the entire system
-All the modules are the individual system
by shade
and
-Output
drop
may
occur
following
the
therefore
not
influenced
by
environmental elements
voltage drop in the shade area
-Module that underwent the failure doesn’t
[Influence on the entire module within the
influence
same PCS]
therefore it maximizes power production
on
the
ambient
module,
and
-AC power is produced by individual module
unit, and therefore prevents power loss by
DC line.
[Influence on the applicable module net]
Safety
Safety
-Dangerous as it is connected to high-
-Using low AC power rather than high-
voltage DC
voltage DC; Prevent the electric shock risk
-Risk of fire caused by the occurrence of DC
-No DC voltage; no arc
arc
-Module
that
influence
on
undertook
the
error
ambient
doesn’t
module;
maximizing the power production
Warranty & A/S
Warranty & A/S
-5 year warranty/10 year duration
-15 year warranty/25 year duration
-Inverter
error
influences
on
the
entire
-Monitors individual module output resulting
system
in
error-module
interruption
-Requiring shut-off of power of the entire
system quality improvement effect
system during maintenance
Improves the system efficiency up to 15% compared with the existing system
effect
and