Working Principles; Circuit Diagram - Huawei SUN2000-63KTL-JPH0 User Manual

SUN2000-63KTL-JPH0
User Manual
Label

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.
Issue 04 (2019-06-30) Copyright © Huawei Technologies Co., Ltd.
Name Meaning
DC terminal High voltage exists after the
operation SUN2000 is powered on. To
warning avoid electric shocks,
perform the following system
power-off operations before
plugging or unplugging DC
input connectors of the
SUN2000:
1. Send a shutdown
2. Turn off the downstream
3. Turn off the two DC

Spot-check
terminal
operation
warning

SUN2000 SN Indicates the SUN2000 serial
label number.
Weight label The SUN2000 needs to be
carried by four persons or
using a pallet truck.
2 Overview
command.
AC switch.
switches at the bottom.
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.
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