Sungrow SG80KTL User manual

SG80KTL Quick Installation Guide

This guide provides a general instruction of the installation procedures of SG80KTL.

In no case shall this guide substitute for the user manual or related notes on the

device.

Make sure to read over, fully understand and strictly follow the detailed

instructions of the user manual and other related regulations before installing

the equipment.

Any violation could result in personal death or injury or device damage.

1 Unpacking and Inspection

Step 1 R

emove the backplate and

fasteners from the packaging.

Step 2 Inspect the inverter for visible

damages and check the

completeness of the delivery

contents

according to the

inner packing list.

1110mm

800mm

391mm

Contact your supplier if any of the contents is missing. SG80KTL is

unavailable if any damage is detected.

ABC

×18

Fig. 1-1 Scope of delivery

Item

Name

Description

Inverter

---

Backplate

Used to fix the inverter to the installation site.

C Documents

Quality certificate, packing list, test report, CD and quick

user manual

Fasten set

Six units to fasten backplate to metal frame.

E Fix screw

Two M4×16 screws to fix the inverter with the

backplate.

DC connector

Eighteen pairs MC4 terminals for PV connection.

G AC cable gland

When the external diameter of the AC cable you

selected matches it, replace the original AC cable gland

on the bottom of the device before wiring.

2 Mounting Inverter onto the metal

frame

Select the installation location and regulate the clearances of multiple inverters,

referring to the user manual.

Move the inverter to the installation site with the help of another person or the

lifting device by means of the handles.

Install the inverter onto metal frame as following procedures.

Step 1 Remove the backplate and fasteners from the packaging.

Step 2 Place the backplate to the chosen metal frame and adjust it to proper

position and height.

Step 3 Mark the position for holes drilling according to the holes position of the

backplate.

Step 4 Drill holes according to the marks make before. If the shape of the metal

frame does not match the backplate, re-drill holes on the backplate

according to the metal frame chooden.

Step 5 Secure the backplate to the metal frame firmly by the supplied fastener.

Torque of the fasten nut is 35 Nm.

Step 6 Lift the inverter above the backplate and then slide down to make sure they

match perfectly.

Step 7 After putting the inverter on the backplate, secure the inverter to the

backplate with two M4×16 screws (fix screw hole has its own nut).

No.

Name

Description

Hexagon nut

M10

Spring

washer

Flat washer

Screw bolt

M10*45

Metal frame

Backplate

3 Electrical Connection

Death hazards due to high voltage existing inside the inverter!

Make sure that all the DC and AC cables to the inverter are not live before you

start the electrical work.

Do not turn on the AC side or DC side circuit breaker until all inverter electrical

connections have completed.

3-1 Open the Connection Cabinet

Loose the six screws on the front cover of the connection cabinet and remove the

front cover to see the internal layout of the connection cabinet.

Configuration

circuit board

DC switch

DC SPD Cooling fan AC crimping

terminal

Front view

AC cable gland

DC switch

Waterproof

air valve

Communication

cable glands

DC input plug-in

terminal

Bottom view DI/DO cable

gland

AC cable gland for

connecting Tracker

control cabinet

3-2 Cables Selection

AC Cable

BPE

No.

Description

Remark

Protective layer

External diameter of the cable: 30.5-50 mm

Length of insulation to be

stripped off

24 mm

Insulation layer

D Cross section of AC cables

Range: 30-150mm2; recommended value: 70

* The external diameter of the AC cable described in A is proper range.

If you select AC cable with the external diameter within the range of 30.5-40

mm, please select the smaller AC cable gland.

If you select AC cable with the external diameter within the range of

40-50mm, please select the larger AC cable gland.

The following table gives the recommended max. length of the AC cables based

on the cross-section of the AC cables.

Cross-section of the AC cable (mm2)

Max. length of the AC cables (m)

0-50

50-100

>100

DC Cables

Cross-sectional

area

Cable

External

diameter

Max.

withstand

voltage

Max. input current for

each PV string

4~6mm2

12AWG~10AWG

6~9mm 1100V 12A

Second PE Cable

The cross-sectional area of the second PE cable shall be exactly the same with

that of the PE cable of the AC cable.

RS485 communication cables

Shielded twisted pair cables or Shielded twisted pair Ethernet cables.

3-3 AC Connection

High voltage inside the inverter!

Ensure all cables are voltage-free before electrical connection.

Do not connect the AC circuit breaker until all inverter electrical connections

are completed.

Step 1 Disconnect the AC circuit breaker and ensure it will not reconnect

accidentally.

Step 2 Unscrew the 6 bolts on the front cover of the

lower junction box.

Step 3 Peal the cables as shown below.

For flexible cables (stranded wires), use cold pressing terminal lugs.

The cross-section of the AC cable must be selected carefully in order to prevent

accidentally disconnections of the inverter from the grid due to high impedance of

the cable.

BPE

Step 4 Select the adaptive wire diameter of AC cable gland according to actual AC

cable diameter. Remove or install the two AC cable glands on the bottom of

the device by torque of recommended value.

Remove or install the smaller AC cable gland by torque of 12…13 Nm.

Remove or install the larger AC cable gland by torque of 16…17 Nm.

Peel the plastic film on one end of the AC cable protection with proper

tools before AC cable connection. Only the AC cable protection itself

needs to be replaced; other accessories (packing nuts) can still be used.

Step 5 Fix the AC cable to the corresponding terminals with torque shown in the

follow two tables.

Cable section(mm2)

Screw tightening torque(Nm)

Min

Max

26.7~42.3

9.8

13.6

53.5~67.4

11.9

16.3

70~107

15.8

22.6

127~177

19.8

29.4

The table values are used for the following cable type:

1. Copper stranded(including sector);

2. aluminum solid(including sector);

Cable section(mm2)

Screw tightening torque(Nm)

Min

Max

26.7~42.3

7.9

10.8

53.5~67.4

9.5

13.0

70~107

12.7

18.1

127~177

15.8

23.5

The table values are to used for the following cable type:

1. aluminum stranded;

Step 6 Pull the cable gently to make sure it is secured.

L1 L2 L3 PE

* Pictures here are indicatively only. Product in kind prevail.

If the cross-

section of the AC cable is sectorial, please place the apex(A) of

sector upside and then fix the AC cable to the corresponding terminals..

90°

A(apex)

Observe the AC terminal layout. Device will not work normally if the phase

cable is connected to the PE terminal.

Do not squeeze or press the cable insulation layer. Improper connection

may affect the normal operation of the inverter.

Step 7 Seal the gaps between the AC cable and the gland inside the lower part of

the cabinet by fireproofing mud.

3-4 DC Connection

Step 1 Strip off 7mm insulation layer from

all DC cables.

7mm

Step 2 Assemble cable ends with crimp

contacts by crimping pliers.

Positive Crimp Contact

Negative Crimp Contact

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