GE GEP5.0-3-10 User manual

www.gesolarinverter.com
Grid-Tied PV Inverter
V1.0
GEP
4-20kW Three Phase
User Manual

I
User Manual V1.0-2022-05-10 Content
The information in this user manual is subject to change due to product updates or other reasons.
This manual cannot replace the product labels or the safety precautions unless otherwise speci󽗉ed.
All descriptions in the manual are for guidance only.
and other GE trademarks are trademarks of General Electric Company. All other trademarks
or registered trademarks mentioned in this manual are owned by General Electric Company.
Trademarks
Notice

II
Content User Manual V1.0-2022-05-10
CONTENT
1 About This Manual ���������������������������������������������������������IV
1.1 Applicable Model .....................................................................................IV
1.2 Target Audience .......................................................................................IV
1.3 Symbol De󽗉nition ....................................................................................IV
1.4 Updates ..................................................................................................... 1
2 Safety Precaution �����������������������������������������������������������2
2.1 General Safety...........................................................................................2
2.2 DC Side ...................................................................................................... 2
2.3 AC Side ......................................................................................................3
2.4 Inverter Installation .................................................................................. 3
2.5 Personal Requirements ............................................................................ 3
3 Product Introduction ������������������������������������������������������4
3.1 Application Scenarios...............................................................................4
3.2 Circuit Diagram ......................................................................................... 4
3.3 Supported Grid Types .............................................................................. 5
3.4 Appearance ...............................................................................................6
3.4.1 Appearance ........................................................................................................6
3.4.2 Indicators ...........................................................................................................8
3.4.3 Nameplate .........................................................................................................8
4 Check and Storage ����������������������������������������������������������9
4.1 Check Before Receiving ............................................................................ 9
4.2 Deliverables ..............................................................................................9
4.3 Storage ...................................................................................................10
5 Installation �������������������������������������������������������������������11
5.1 Installation Requirements ...................................................................... 11
5.2 Inverter Installation ................................................................................ 14
5.2.1 Moving the Inverter .........................................................................................14
5.2.2 Installing the Inverter ......................................................................................14

III
User Manual V1.0-2022-05-10 Content
6 Electrical Connection ���������������������������������������������������� 16
6.1 Safety Precautions ................................................................................. 16
6.2 Connecting the PE Cable ........................................................................ 16
6.3 Connecting the PV Input Cable .............................................................. 17
6.4 Connecting the AC Output Cable ........................................................... 25
6.5 Communication ...................................................................................... 27
6.5.1 Connecting the Communication Cable (optional) .........................................27
6.5.2 Installing the Communication Module (optional) ..........................................31
7 Equipment Commissioning ������������������������������������������� 32
7.1 Check Items Before Switching Power ON .............................................. 32
7.2 Power On ................................................................................................. 32
8 System Commissioning ������������������������������������������������� 33
8.1 Indicators and Button ............................................................................ 33
8.2 Setting Inverter Parameters via LCD ...................................................... 34
8.2.1 LCD Menu Introduction ...................................................................................34
8.2.2 Inverter Parameter Introduction .....................................................................36
8.3 Setting Inverter Parameters via App ...................................................... 38
8.4 Monitoring via Power Sight .................................................................... 38
9 Maintenance ���������������������������������������������������������������� 39
9.1 Power O󽗈 the Inverter ............................................................................ 39
9.2 Removing the Inverter ............................................................................ 39
9.3 Disposing of the Inverter ........................................................................ 39
9.4 Troubleshooting ..................................................................................... 40
9.5 Routine Maintenance ............................................................................. 43
10 Technical Parameters �������������������������������������������������� 44

IV
01 About This Manual User Manual V1.0-2022-05-10
1 About This Manual
1�1 Applicable Model
1�2 Target Audience
1�3 Symbol De󽗉nition
This manual describes the product information, installation, electrical connection,
commissioning, troubleshooting, and maintenance. Read through this manual before installing
and operating the product. All the installers and users have to be familiar with the product
features, functions, and safety precautions. This manual is subject to update without notice. For
more product details and latest documents, visit www.gesolarinverter.com.
This manual applies to trained and knowledgeable technical professionals. The technical
personnel has to be familiar with the product, local standards, and electric systems.
Di󽗈erent levels of warning messages in this manual are de󽗉ned as follows:
This manual applies to the listed inverters below (GEP for short):
Model Nominal Output Power Nominal Output Voltage
GEP4.0-3-10 4kW
3/N/PE, 220/380Vac
3/N/PE, 230/400Vac
3/N/PE, 240/415Vac
GEP5.0-3-10 5kW
GEP6.0-3-10 6kW
GEP8.0-3-10 8kW
GEP10-3-10 10kW
GEP12-3-10 12kW
GEP15-3-10 15kW
GEP20-3-10 20kW
GEP10-3-AU10 10kW
GEP8-3-AU10 8kW
DANGER
Indicates a high-level hazard that, if not avoided, will result in death or serious injury.
WARNING
Indicates a medium-level hazard that, if not avoided, could result in death or serious injury.
CAUTION
Indicates a low-level hazard that, if not avoided, could result in minor or moderate injury.
NOTICE
Highlight and supplement the texts. Or some skills and methods to solve product-related
problems to save time.

1
User Manual V1.0-2022-05-10 01 About This Manual
1�4 Updates
The latest document contains all the updates made in earlier issues.
V1�0 2021-7-30
• First Issue

2
02 Safety Precaution User Manual V1.0-2022-05-10
2 Safety Precaution
2�1 General Safety
2�2 DC Side
Notice
• The information in this document is subject to change due to product updates or other
reasons. This manual cannot replace the product labels or the safety precaution unless
otherwise speci󽗉ed. All descriptions here are for guidance only.
• Before installations, read through the user manual to learn about the product and the
precautions.
• All installations should be performed by trained and knowledgeable technicians who are
familiar with local standards and safety regulations.
• Use insulating tools and wear personal protective equipment when operating the
equipment to ensure personal safety. Wear anti-static gloves, cloths, and wrist strips when
touching electron devices to protect the inverter from damage.
• Strictly follow the installation, operation, and con󽗉guration instructions in this manual.
The manufacturer shall not be liable for equipment damage or personal injury if you do not
follow the instructions. For more warranty details, visit www.gesolarinverter.com.
Notice
The inverters are designed and tested strictly complies with related safety rules. Read and follow
all the safety instructions and cautions before any operations. Improper operation might cause
personal injury or property damage as the inverters are electrical equipment.
DANGER
Connect the DC cables using the delivered DC connectors and terminals. The manufacturer
shall not be liable for the equipment damage if other connectors or terminals are used.
WARNING
• Ensure the component frames and the bracket system are securely grounded.
• Ensure the DC cables are connected tightly and securely.
• Measure the DC cable using the multimeter to avoid reverse polarity connection. Also, the
voltage should be under the permissible range.
• The PV modules used with the inverter must have an IEC61730 class A rating.
• If there are more than 3 PV strings on input side, an additional fuse installation will be
suggested.
• When exposed to sunlight, the PV array will generate very high voltage which can cause
electrical shock hazard. Please strictly follow the instruction we provided.

3
User Manual V1.0-2022-05-10 02 Safety Precaution
2�4 Inverter Installation
DANGER
• Terminals at the bottom of the inverter cannot bear much load. Otherwise, the terminals will
be damaged.
• All labels and warning marks must be clear and distinct after the installation. Do not block,
alter, or damage any label.
• Installtheinverterawayfromhighmagneticeldtoavoidelectromagneticinterference.
Ifthereisanyradioorwirelesscommunicationequipmentbelow30MHzneartheinverter,
youhaveto:
• Installtheinverteratleast30mfarawayfromthewirelessequipment.
• AddalowpassEMIlteroramultiwindingferritecoretotheDCinputcableorAC
outputcableoftheinverter.
• Warning labels on the inverter are as follows.
2�5 Personal Requirements
NOTICE
• Personnel who install or maintain the equipment must be strictly trained, learn about safety
precautions and correct operations.
• Only quali󽗉ed professionals or trained personnel are allowed to install, operate, maintain,
and replace the equipment or parts.
2�3 AC Side
WARNING
The voltage and frequency at the connecting point should meet the on-grid requirements.
An additional protective device like the circuit breaker or fuse is recommended on the AC side.
Speci󽗉cation of the protective device should be at least 1.25 times the AC output rated current.
PE cable of the inverter must be connected 󽗉rmly. The resistance between the neutral wire and
the earth cable is less than 10Ω.
You are recommended to use copper cables as AC output cables. Contact the manufacturer if
you want to use other cables.
HIGHVOLTAGEHAZARD.
Disconnectallincomingpower
andturnotheproductbefore
workingonit.
Delayeddischarge.Wait5minutes
afterpowerountilthecomponents
arecompletelydischarged.
Readthroughtheguidebefore
workingonthisdevice.
Potentialrisksexist.Wearproper
PPEbeforeanyoperations.
High-temperaturehazard.Do
nottouchtheproductunder
operationtoavoidbeingburnt.
Grounding point. Indicates the
position for connecting the PE cable.
CE marking Do not dispose of the inverter
as household waste.Discard the
product in compliance with local
laws and regulations, or send it back
to the manufacturer.
RCM marking. NA NA
5min

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03 Product Introduction User Manual V1.0-2022-05-10
3 Product Introduction
3�1 Application Scenarios
The GEP inverter is a three-phase PV string grid-tied inverter. The inverter converts the DC power
generated by the PV module into AC power and feeds it into the utility grid. The intended use of
the inverter is as follows:
The circuit diagram of GEP8-3-US10, GEP10-3-AU10, GEP12-3-10, GEP15-3-10, and GEP20-3-10 is
as follows.
PV String Inverter Circuit
Breaker Power
Meter
DC Switch
DC Switch
EMI
Filter
EMI
Filter
EMI
Filter
EMI
Filter
EMI
Filter
DC SPD
DC SPD
AC SPD
AC SPD
EMI
Filter
DC/AC
Inverter
Circuit
DC/AC
Inverter
Circuit
LC
Filter
Output
Disconnecting
Relay
Output
Disconnecting
Relay
LC
Filter
Utility
Grid
3�2 Circuit Diagram
The circuit diagram of GEP4.0-3-10, GEP5.0-3-10, GEP6.0-3-10, GEP8.0-3-10, and GEP10-3-10 is as
follows.
PV1+
PV1-
PV2+
PV2-
L1
L2
L3
N
PE
PV1+
PV1--
PV2+
PV2-
L1
L2
L3
N
PE
MPPT1
MPPT2
MPPT1
MPPT2

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User Manual V1.0-2022-05-10 03 Product Introduction
3�3 Supported Grid Types
For the grid type with neutral wire, the N to ground voltage must be less than 10V.
Inverter Inverter Inverter Inverter
Inverter
L1
L2
L3
N
PE

PE
TN-S
L1
L2
L3
PEN
PE
TN-C

L1
L2
L3
N
PE
PE
TN-C-S

L1
L2
L3
N
PE
TT

L1
L2
L3
PE
IT
