i-Energy i-Micro inverter GT260 - NeoSolar: Energia Solar ...

2 Copy Right @ i-Energy Corp 2013

i-Energy i-Micro inverter GT260

This installation guide contains important instructions on safety matters and the

installation of the i-Energy i-Micro inverter GT260. Please read this guide carefully and

follow all instructions to ensure safe installation and operation.

Read all warnings, instructions and maintenance on the GT260 Installation procedures

listed in this manual.

Before your read:

251660288

Symbols to Be Used in Equipment Marking

Item Symbol Reference Description

1

ISO 3864 – 5036 Caution, risk of electric shock

2

IEC 60417 – 5041

(2002-10) Caution, hot surface

3

Caution, unable to take apart

Contact information:

i-Energy Corporation Ltd.

7F.-, No.128, Sec. 3, Minsheng E. Rd.,

Taipei City 105, Taiwan (R.O.C.)

Web:i-Energy.com.tw

TEL: 886-2-2545-8097

FAX: 886-2-2546-6532

This symbol indicates warning, risk of electric shock

Presents safety information to prevent injury or hazards to users and/or installers.

Note This symbol indicates important information for system operation, please

read the content carefully where this symbol is shown..


Table of Content

Subject .................................................................................................................................................................... 1

General Introduction for the i-Energy GT260 i-Micro inverter system ............................. 4

Specifications sheet & parameters ......................................................................................................... 4

GT260 Installation Procedures .................................................................................................................... 6

Things to Check before Installing GT260 .......................................................................................... 6

Step 1- Affix the i-Micro inverters Serial Number to the” i-Energy System

Mapping Guide” found in i-Manager Box .......................................................................................... 7

Step 2- Attach i-Energy i-Micro inverters to The Rack .............................................................. 7

Step 3- Connecting to The Ground System .................................................................................... 8

Step 4- Connecting The i-Micro inverters AC Cable to The PV Module

System ............................................................................................................................................. 10

Step 5- Connecting the DC Cables to the PV Modules ........................................................ 11

Step 6- Using the AC Grid Extension cable to connect i-Micro inverter to the AC

Breaker ........................................................................................................................................... 11

For General Connection Configuration ........................................................................ 11

For US Market………………………………………………………..12

For German Market …………………………………………………13

Step 7- Tune on the AC breaker after all the installation steps have been

completed .................................................................................................................................... 15

i-Micro inverter Replacement .................................................................................................................... 16

Step 1- Disconnect DC Cables ............................................................................................................ 16

Step 2- Disconnect AC Cable .............................................................................................................. 16

Step 3- Loose lay-in Lug on i-Micro inverter ................................................................................ 17

Step 4- Loosen the Mounting Screws to Take the i-Micro inverter

from Its Rack ................................................................................................................................................... 17

Accessory ........................................................................................................................................................... 17

Monthly Maintenance & LED Identification through Installation Steps ................................... 18

APPENDIX I & II ............................................................................................................................................. 19


General Introduction for the i-Energy GT260 i-Micro inverter System

i-Energy GT260 is designed with high transform efficiency, DC(PV panel) to AC(Grid)

i-Micro inverter. Each i-Micro inverter is individually paired with a PV panel, which

ensures each PV panel has its own MPPT, and can individually export AC power to grid

utility. A recommended PV module should have 240W to 265W power output, to

ensure that GT260 i-Micro inverter can work with the best MPPT efficiency.

GT260 i-Micro inverter is a certificated, fully outdoor design with IP 65 protection level,

it is recommended to mount the inverter near your PV panel with its rack. Aside from

this manual, see www.i-energyinc.com/downloads for further support.

The complete i-Energy i-Micro inverter system should be with i-Manager, a web based

PLC communication data login to monitor your i-Micro inverter system.

Specifications Sheets and Parameters for GT260:

PV Input (DC) General Efficiency

Input power 240W to 265W Maximum efficiency 94 %

Peak power tracking

range@230W

30-50V CEC efficiency 93 %

MPPT operating range 25-50V Nominal MPP

tracking

99.3 %

Solar panel input voltage

range

25V~59V

Maximum DC short

circuit current

12A

Maximum input current 10A

http://www.i-energyinc.com/downloads


Grid output (AC) Mechanical Data

Maximum output power 230W Dimensions (L x W x

H)

23.2cm x 21.1cm

x 4.26cm

Nominal output current 1 A Cooling Natural convection

Nominal voltage (USA) 240V Enclosure

environmental rating

Outdoor, IP66,

Type 3R Nominal voltage (EU) 230V

Nominal frequency (USA) 60Hz Connector Depended on the

connector from

Junction box.

Nominal frequency (EU) 50Hz

Power factor > 0.95

Maximum units per branch 17 Weight 2.2 kg ( 4.8lbs)

Key parameters for GT260

Overvoltage Category II (for PV input), III (for AC output)

Pollution Degree 3

Operation Temperature -40ºC - +65ºC

Storage Temperature -40ºC - +85ºC

Relative Humidity 4% - 100%

Maximum Altitude 2000m

Feedback current 0.5mA

Maximum short-circuit current 12A

To reduce the risk of fire, connect only to a circuit whether complied

with maximum branch-circuit overcurrent protection in accordance

with the National Electrical Code, ANSIINFPA 70.

Please read the specification for power input/output limit before

installation. No beyond or out of limitation is allowed.

i-Micro inverter Installation Manual

This specification defines the GT260 for 240W to 265W solar panels. The i-Micro inverter is designed to be plugged between the solar panel and the power grid, and converts DC power into AC power.


The i-Micro inverter is used to quickly and easily connect the PV module to transfer

source energy from the DC to AC circuit, then connect to the electrical utility grid or to

energize the AC circuit.

GT 260 Installation Procedures

Things to check before installing GT260:

Please have your technician or installers to review the following items listed below

before beginning the installation.

Item Check items

1 Read through the i-Micro inverter input/output specifications and warning

items.

2 Type of roof material qualified to install PV systems

3 Broadband connection is established/connected

4 Available Ethernet socket

5 Sufficient grid utility point

Anyone who installs or replaces the i-Micro inverter must be an

authorized and licensed personnel, who can ensure the safety

practice of a qualified assembly, installation or replacement.

Do not disassemble the inverter’s casing to prevent risks of electric

shock and fire.

Select a suitable PV panel with a short circuit current less than 12

Amp.

For i-Micro inverter installation to the rack and PV module, follow the key steps below:

Step 1- affix the i-Micro inverters serial number to the ” i-Energy System Mapping

Guide” found in the i-Manager box.


Step 2- Attach the i-Micro inverter to the rack before connecting it to the PV module.

Step 3- Connect the AC cables to each branch of the PV module system.

Step 4- Connect the grounding system.

Step 5- Connect the DC cables to each PV module.

Step 6- Use the cable accessory to connect between the AC cables of i-Micro inverter

and the AC source.

Step 7- When all of the installation steps have been completed, it is now safe

to turn on the AC source to begin operation.

Step1-- Affix the i-Micro inverters Serial Number to the” i-Energy System Mapping

Guide” Found in the i-Manager Box.

Take i-Micro inverter out of its box, and turn it over to find its serial number.

a. Remove serial number sticker located directly below GT260 i-Micro inverter label.

b. Affix serial Number sticker to the “i-Energy System Mapping Guide”

Fig. 1. Turn over i-Micro inverter to see serial number

System Mapping Guide

Please go to www.i-energyinc.com to download the “i-Energy System Mapping Guide” if

you don’t have an i-Manager, or if an additional “i-Energy System Mapping Guide” is

needed.

Step 2 --Attach i-Energy i-Micro inverters to the Rack

a. Take i-Micro inverter out of the box, mount i-Micro inverter onto the rack.

Install mounting hardware.

http://www.i-energyinc.com/


b. Use a M8 or M10mm size screw to fix the inverter.

c. The gap distance between the roof surface and the back of the PV modules needs to

be at least 1cm.

Fig. 2.1 Mounting GT260 on racking.

Fig. 2.2 The necessary gap for the i-Micro inverter’s back side.

Recommended racking specifications can be found at www.i-energyinc.com, by

downloading the “System racking guide”.

Step 3- Connecting to the Grounding System.

a. Use a recommended grounding lug with a continuous ground wire, see Fig. 3.1.

b. Grounding washers ( i.e. Wiley Electronics “ WEEB”). Suggested torque

requirement is 18.5 N-m Minimum.

1cm

http://www.i-energyinc.com/


Fig. 3.1 Grounding lay-in lug.

Fig. 3.2 Grounding washer.

Grounding regulations may vary by market, be sure to follow local

grounding requirements.

- Mounting Hardware

- Mounting Washer

- Grounding Hardware

- Grounding Wire

- DC Connection Cable

- AC Connection Cable

- Racking

Note


Inverters must be grounded according to related local standard.

The lay-in lug from ILSCO (P/N: GBL-4DBT) or other certified

products of equivalent or better quality can also be used.

Step 4- Connecting the i-Micro inverters AC Cable to the PV Module System.

a. Connect adjacent i-Micro inverters to each other through AC interconnection

cables.

b. Listen for a click as connectors engage.

Make sure any unused i-Micro inverter AC connector is covered with a sealing end

cap. Do not exceed 17 pcs of i-Micro inverters connected per branch.

Key Connecting Procedure for the AC grid cable

Connecting Procedure

Fig. 4.1 AC cable connection.

Fig. 4.2 Connect the Male & Female AC connectors between each inverter, and the end

cap on the last inverter at the end of the string.

Note

Note


Step 5- Connecting the DC Cables of PV Modules

a. Connect each PV module to the inverter DC cables to feed PV power into i-Micro

inverter, following the polarity direction marked on each i-Micro inverter.

Fig. 5.1 Connect the DC connector to the i-Micro inverter

Follow all the cable connection sequences outlined in this guide.

Step 6- Using the AC Grid Extension Cable to Connect the i-Micro inverter to the AC

Breaker. For General connection configuration: For US, Canada and Mexico:

Use the AC grid extension cable to connect the i-Micro inverter with the AC

breaker inside AC junction box, see Fig 6.1.

To connect i-Micro inverter with AC breaker, the length of the cable will be 5

meters. The color definition of each terminal is shown below

in Table 6.1

Note


Fig. 6.1 General configuration of i-Micro inverter to grid utility.

Table 6.1 Color definition

Pin Number FUNCTION (US) WIRE COLOR

PIN 1 LINE 1 Black

PIN 2 LINE 2 White

PIN 3 NEUTRAL Green

Follow the local electrical codes and Nation electrical codes for

electrical installation.

For German market: AC grid connection configuration with branch breaker or Safety Box:

a. To connect i-Micro inverter with AC breaker (Fig 6.2(a)), the length of the cable

will be 5 meters. The color definition of each terminal is shown below in Table

6.3.

Connect the i-Micro inverter to the output terminal of branch breaker or i-Energy’s Safety Box, by using the cable accessory, as shown in Fig 6.2(a) ,Fig 6.2(b) or Fig 6.3.

b. For i-Micro inverter AC cables to connect AC breaker (Fig 6.2(a)), the length of


the cable will be 5 meters. The pin definition of each terminal is shown in Table

6.3.

c. The branch breaker must include protection devices. See Fig 6.2(b) and table 6.2.

d. The function setting of protection devices is defined as shown in Table 6.2. and

the circuit of branch breaker is shown in Fig. 6.2(a), Fig. 6.2(b) and Fig. 6.3.

Fig. 6.2(a) connection configuration with branch breaker


Fig. 6.2(b) The Diagram of Branch Breaker

Table 6.2 Protection Devices

Table 6.3 Cable Color and Pin definition

Pin Number FUNCTION (EU) WIRE COLOR

PIN 1 LINE Black

PIN 2 NEUTRAL Blue

PIN 3 GROUND Green / Yellow

Symbol Name Specifications Settings

NFB No Fuse Breaker

(AC Breaker)

2P 30AF 20AT NC

MC Magnetic Contactor AC240V

3kW/4HP/28A

NC

U/OVP Voltage Protection Klemsan VP35 184V UVP, 264V OVP,

0.1 sec

U/OFP Frequency Protection Klemsan FP35 47.5Hz UFP, 50.2Hz

OFP, 0.1 sec


Follow the local electrical codes and Nation electrical codes for

electrical installation.

The device between Utility and PV inverter may consist of breaker,

fuse and connectors. To comply with local safety standards and

codes, the connection system should be designed and implemented

by a qualified technician.

Fig. 6.3 Wiring Scheme for safety box

Step7- Turn on the AC Breaker after all the Installation Steps Have Been

Completed

a. Finally check the steps 1 to 5 to ensure system installation is complete then turn on

the AC breaker to start your i-Micro inverter PV system.

Check the electrical utility grid and make sure that the utility

company possesses the relevant licenses before the PV

system begins operation .

This unit is designed to feed energy to the public power grid

(utility) only. Do not connect this unit to an AC source or

generator.

i-Micro inverter Replacement


If an i-Micro inverter in your system isn’t working properly, please follow the steps below

to replace the defective i-Micro inverter.

Step 1- Disconnect the DC Cables

Disconnect the PV panel DC connectors, according to manufacturer’s recommendation

then pull off the DC connector from the inverter.

Crimp pliers may be used to help disconnect the DC connector.

Step 2- Disconnect the AC Cables

Using a small screw driver, slightly press the tenon (a grey connection hook) on the AC

connector, then pull apart to disconnect the AC connector.

Note


Step 3- Loose Lay-in Lug on the i-Micro inverter

Step 4- Loose the Mounting Screws to Take Off the i-Micro inverter from Its Rack

Accessory Listed below are the supplied accessories for installation. Customers can contact i-Energy distributors to purchase the parts.

Item Name Description Length

1 Extension Cable Bridging a gap between i-Micro

inverters.

5m

2 AC Grid Cable For AC breaker 5m, 10m

3 End Cap For dustproof None

Monthly Maintenance First turn power off the whole system before performing any maintenance listed in the table below.


Item Item Description

1 Wall-mounting screw Check for loose screws.

2 AC terminal housing Check the cables are securely fastened

onto the housing

3 All Cables Check for cracks on each cable

4 All cable gland Check for loose ends.

5 i-Micro inverter Safe cleaning

It is necessary for technician to recommend periodic inspection and

testing while performing wiring inspection at regular intervals.

LED Identification by Installation Steps:

LED state i-Micro inverter condition

Step 1 OFF No power feed in to inverter.




Step 5 BLINKING ORANG PV power feed in but the grid is turned off.

Step 6 BLINKING ORANG PV power feed in but the grid is turned off.

Step 7 BLINKING GREEN ./ SOLID GREEN

Wait for grid connection, then activate the inverter to power feed the grid.

If the system is BLINKING RED LED at STEP 5, STEP 6, STEP 7 for over

10 seconds, please contact i-Energy technical support for more

information.

For VDE V0126 grid connection requirements, safety box will indicate multi

status. Please refer to LED indication table in the safety box installation

manual.

APPENDIX I -Wire assembly diagram

General assembly in Europe : the wire assembly configuration for 17 i-Micro inverters in 1 branch.

APPENDIX II-Overall assembly diagram

General assembly in Europe : overall system configuration with 72 i-Micro inverters, which is 6 (six) branches for 1 system.

Note

Note

19

Copy Right @ i-Energy Corp 2013

APPENDIX I

20

Copy Right @ i-Energy Corp 2013

APPENDIX II

i-Energy i-Micro inverter GT260 - NeoSolar: Energia Solar ...

Documents

Transcript of i-Energy i-Micro inverter GT260 - NeoSolar: Energia Solar ...