![Huawei SUN2000-63KTL-JPH0 User Manual Download Page 21](http://html.mh-extra.com/html/huawei/sun2000-63ktl-jph0/sun2000-63ktl-jph0_user-manual_168533021.webp)
SUN2000-63KTL-JPH0
User Manual
2 Overview
Issue 04 (2019-06-30)
Copyright © Huawei Technologies Co., Ltd.
14
Label
Name
Meaning
DC terminal
operation
warning
High voltage exists after the
SUN2000 is powered on. To
avoid electric shocks,
perform the following system
power-off operations before
plugging or unplugging DC
input connectors of the
SUN2000:
1.
Send a shutdown
command.
2.
Turn off the downstream
AC switch.
3.
Turn off the two DC
switches at the bottom.
Spot-check
terminal
operation
warning
Exercise caution when
operating spot-check
terminals because they are
always energized.
Disconnect the DC
switches 1 and 2 before
performing the dielectric
withstand voltage test
through the PV1+ to
PV12+ and PV1- and
PV12- ports.
SUN2000 SN
label
Indicates the SUN2000 serial
number.
Weight label
The SUN2000 needs to be
carried by four persons or
using a pallet truck.
2.4 Working Principles
2.4.1 Circuit Diagram
The SUN2000 receives inputs from 12 PV strings. The inputs are grouped into 6 MPPT
circuits inside the SUN2000 to track the maximum power point of the PV strings. The DC
power is then converted into three-phase AC power through an inverter circuit. Surge
protection is supported on both the DC and AC sides.