SUNKET-ESS SKT4KTL3H Manual de usuario

SKT4KTL3H

SKT8KTL3H

SKT5KTL3H

SKT10KTL3H

SKT6KTL3H

SKT12KTL3H

User Manual

: sunketess.com / sunketpower.com

: +86-510-68005868

: [email protected]

- Installation

- Operation

- Maintenance

Contents

3.2.4 ESS Working Modes Setting Instruction

3.2.3 Monitoring and Setting

3.2.2 WiFi Configuration

3.2.1 Software acquisition

2.4.3 PV Connection

2.4.2 Overview Of The Electrical Connecting Part

2.4.1 System Wiring Diagram

2.3.2 Mounting The Inverter

2.3.1 Requirements For Mounting

1.3.4 Peak shaving and valley filling mode

1.3.3 Micro-grid mode

1.3.2 Battery backup mode

1.3.1 General mode(Default)

1.1.2 SAFETY WARNING

1.1.1 Symbols Explanation

1.1 Safety Symbois & Warnings

3.2 Monitoring System

2.8 Smart meter connection

2.7 Declaration for ESP Loads

2.6 Grid & ESP Connection

2.5 Battery Connection

3.1 LED and LCD Display

2.4 Electrical Connection

2.3 Mounting

2.2 Unacceptable Installations

2.1 Unpacking and Checking

1.3 Operation Modes Introduction

1.2 System Diagram

3 Operating of the Inverter

2 lnstallation

1 lnstallation

Contents

4 Trouble Shooting 24

5 Technical Data 27

6 Appendix:

Smart Meter Connection Instruction

Introduction Introduction

SKT

Instruction Instruction

SKT

Introduction Installation

1.3.4.1) In the valley level, the grid and PV charge the batteries.(Fig:1.3.4.1)

Fig:1.3.4.1

1.3.4.2) In the flat stage,if the PV is sufficient,the battery can be charged(Fig:1.3.4.2A); if

the PV is insufficient, Priority is for loads(Fig:1.3.4.2B).

Fig:1.3.4.2A Fig:1.3.4.2B

1.3.4.3) In the peak level.

Fig:1.3.4.3(A)(PV is sufficient) Fig:1.3.4.3(B)(PV is insufficient)

2 Installation

2.1 Unpackingand Checking

On receiving the inverter, please check before installation to make sure all the

components as below are not missing or damaged.

2.2 Unacceptable Installations

Please avoid thefollowing installations, which will damage the system or the inverter.

Inverter×1 Smart Meter×1

with 3 CT

Positive PV

connector×2

AC Connector×2

Positive PV

connector×2

Positive Bat

connector×1

Positive Bat

connector×1

Installation Screw

packet User manual×1

RJ45 Connector×2

2.3 Mounting

2.3.1 Requirements For Mounting

The installation of the inverter should be protected under shelter from direct sunshine or

any bad weather conditions as shown below:

Fig.2.1

The inverter should be installed in a cool & dry place with temperature from -25 to

60 (High ambient temperature will cause the inverter’s power derating).

The inverter LCD should be leveled with eyes and with enough space in the front for

inspection.

The inverter should be installed on a vertical wall or within 15°at most if backwards to the

wall

Fig.2.2

To avoid burning and electric shock, the inverter should be installed beyond reach of

children.

Make sure the installation position does not shake.

No Direct Sunlight No Exposure to Rain and Snow Direct Sunlight ×Exposure to Rain and Snow ×

Leave enough space around the inverter as shown below:

Fig.2.3

2.3.2 Mounting The Inverter

Step 1: Use the positioning the cardboard as template to drill 4 holes on walls.

Fig.2.4

Step2:

Fig.2.5

Position Min.Size(CM)

Front 40CM

Lateral

Top

Bottom

40CM

50CM

Installation Installation

Fix the borad to the wall using the tapping screws tightly.

Installation

Fig.2.6

2.4 Electrical Connection

2.4.1 System Wiring Diagram

General wiring diagram of SKT series hybrid inverter.

Fig.2.7

2.4.2 Overview Of The Electrical Connecting Part

Fig.2.8

2.4.3 PV Connection

Before connecting PV panels/strings to inverter, please make sure:

1) Use the right PV connectors in the accessory box.

2) The voltage, current and power ratings of the PV strings are within theallowable range

of the inverter. Please refer to the Technical Data Sheet for voltage and current limits.

3) Make sure the PV switch of the inverter is in the “OFF” position during wiring.

4) PV strings could not connect to EARTH conductor.

STEP1:

Assemble the PV connectors from the accessory box.(PV cable must be firmly crimped

into connectors)

Fig.2.9

STEP2:

Connect the PV connectors to the inverter. There

will be a click sound if connectors are inserted correctly

into PV plugs.

Fig.2.10

Step 3:Screw on the back of the box to ensure that the inverter is parallel to the wall,

and attach inverter to the wall bracket slightly to the top of its final position

Battery

Solar

KW·h

1024 Grid

Loads

AC Breaker

Billing Meter

3-phase Loads

CT Direction

CTa

CTb

CTc

Smart Meter Box

BMS

5 6 7 8 910 21 22 23

1 2 3 4 13 12

FNSet

OFF PV1

Meter

Power

AC OUT

PV2

Battery

BMS

OFF PV1

Meter

Power

AC OUT

PV2

Battery

Installation

11 12

Installation

2.5 Battery Connection

Battery connection diagram

Fig.2.11

1) Use the right BAT connectors in the accessory box.

2) Choose 4 to 6 mm²(AWG 10) tin-plated cable to connect the battery and the inverter.

3) Make sure battery switch is off and battery nominal voltage meets SKT series

inverter’s specification before connecting battery to inverter.

STEP1:

Assemble the battery connectors from the accessory box.(battery cable must be firmly

crimped into connectors)

Fig.2.12

STEP2:

Connect the battery connectors to the inverter.

There will be a click sound if connectors

are inserted correctly into battery plugs.

Fig.2.13

STEP3:

Connect the BMS cable between battery and inverter, insert the RJ45 connector with

water-proof cap intothe port marked “BMS” on inverter and fasten the cap. Then insert the

other end of the cable intothe battery port.

Position Color

1Orange&white

Orange

Green&white

Blue

485_A2

Blue&white

Green

Brown&white

Brown

485_B2

CAN_H

CAN_L

Fig.2.14

CAN

Batery Power

BMS

OFF PV1

Meter

Power

AC OUT

PV2

Battery

Installation

Fig.2.16

STEP2:

Connect the grid connector and the EPS connector

to the inverter. Just follow the markings on the

inverter to connect them correctly.

2.7 Power key and Declara n for EPS Loads

Fig.2.17

The power button on the rear panel is only used for EPS function.

When mains power does not exist and EPS function is enabled, press and hold for 3

seconds, the inverter will enter backup mode;

When inverter operates in backup mode, press and hold for 3 seconds, inverter will exit

backup mode;

When inverter gives an alarm and shutdown in backup mode, press and hold for 3

seconds, inverter will clear alarm.

Inductive load: a non-frequency conversion air conditioner within 1.5P can be connected

to EPS side. Two or more may cause EPS output unstable.

Do not connect 3-phase inductive load(like motor) without Neutral line to EPS side.

Capacitive load: Total power <=0.6*nominal power of model.

2.8 Smart meter connection

Please Refer to the connection instructions in the meter

box for connection

2.6 Grid & EPS Connection

Use the AC connectors from accessory box for grid and EPS connection. An external AC

breaker(32A) is needed for on-grid connection to isolate from grid

when necessary .

STEP1:

Assemble the grid connector. Follow the markings on the

connectors, make sure 3L/N/PE lines are connected correctly.

Fig.2.15

Operating of the Inverter

15 16

Operating of the Inverter

3 Operating of the Inverter

3.1 LED and LCD Display

The LED indicators are shown as blow:

LED Status Explanation

SYSTEM ON System is powered up

OFF System is not powered up

GRID

ON Grid is normal

OFF Grid loss

FLASH Grid is abnormal

EPS ON Inverter in offline mode, EPS is

active

OFF Inverter is not in offline mode

COM ON WIFI module connected

OFF WIFI module not connected

METER ON Smart meter communication OK

OFF Smart meter communication fail

FAULT

ON Alarm occurred and inverter stop

work

OFF No Alarm

FLASH Alarm occurred but inverter still work

The LCD display shows the detailed information of the inverter

PV12

HIJK

Position Description

AIt indicates the power output amount of total and today alternately. Unit: kWh or MWh

BPV panels indicator

CPV1,PV2 panels parameters. Voltage and current are displayed alternately.

DTotal PV power

EBattery parameters. Voltage and current are displayed alternately.

FBattery power

GBattery indicator

HSOC of battery

ICurrent time

Power flow array of battery. When it towards battery, it means charging; when it towards inverter,it

means discharging.

KDefault as current date. When an error occurs, fault code will be displayed alternately.

L Loads indicator

MLoads power consumption of each phase

NLoad parameters. Voltage and current of each phase are displayed alternately.

OPower export or import of each phase

PGrid indicator

QGrid parameters. Voltage and current of each phase are displayed alternately.

RPower flow array of load

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