End
NOTE:
Before performing electrical connections, ensure that the DC switch is OFF.Since the stored
electrical charge remains in a capacitor long after the DC switch is turned OFF. So it’s
necessary to wait for at least 5 minutes for the capacitor to be electrically discharged.
This topic describes the Sofar 30~40KTL electrical connections. Read this part carefully before
connecting cables.
4.1 Electrical connection
This topic describes the electrical connection process.
4.2 Connecting PGND Cables
Connect the Sofar 30~40KTL to the grounding electrode using protection ground (PGND)
cables for grounding purposes.
4.3 Connecting AC Output Power Cables
Connect the Sofar 30~40KTL to the AC power distribution frame (PDF) or electrical grid using
AC output power cables after obtaining approval from local electrical grid operator.
4.4 Connecting Communication Cables
This topic describes the functions of WIFI and RS485 ports and the method of connecting
WIFI and RS485 communication cables.
4.6 Safety check
Before start the inverter, comply with the safety precautions and check AC
、
DC connections.
4.5 Connecting DC Input Power Cables
Connect the Sofar 30~40KTL to PV arrays using DC input power cables.
Step 4
Putting the Sofar 30~40KTL hook on the rear panel.
Step 5
Using an M4 screw back and inverter bottom fastening, to ensure safety.
Step 6
Putting the rear panel and inverter to lock together, In order to ensure the safety (the
user can select lock according to the actual situation).
Step 4
Step 5
Step 6
4
Electrical Connections
Outlines of this chapter
PV modules generate electric energy before exposed to sunlight and can create
an electrical shock hazard. Therefore, before connecting DC input power cable,
cover PV modules using opaque cloth.
Sofar 30~40KTL has 2 MPP trackers, all PV modules connected to the same
MPPT should have similar rated electrical characteristics (including Isc, Voc, Im,
Vm, Pm and temperature coefficients), have the same number of series
connected PV modules and be all in the same orientation (azimuth and tilt
angle).
Installation and maintenance of inverter, must be operated by professional
electrical engineer.
Attention
Danger
Note
All rights reserved
Shenzhen SOFARSOLAR Co ., Ltd.
C
23
All rights reserved
Shenzhen SOFARSOLAR Co ., Ltd.
C
24
User manual
User manual
Installation
Electrical Connections
Sofar 30K~40KTL
Sofar 30K~40KTL
Document Version 1.0(2015.08.06)
Document Version 1.0(2015.08.06)
Компания
«
Реалсолар
»,
Санкт
-
Петербург
,
Октябрьская
наб
.,
д
. 104,
к
. 1,
лит
.
П
www.realsolar.ru +7911-921-52-96
