Pv Connection (Only Apply For The Model With Solar Charger) - MPP Solar PIP-HS User Manual

PV Connection (Only apply for the model with solar charger)

CAUTION: Before connecting to PV modules, please install separately a DC circuit breaker between inverter
and PV modules.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It's very important for system safety and efficient operation to use appropriate cable for PV
module connection. To reduce risk of injury, please use the proper recommended cable size as below.
Typical Amperage
50A
PV Module Selection:
When selecting proper PV modules, please be sure to consider below requirements first:
1. Open circuit Voltage (Voc) of PV modules not exceeds max. PV array open circuit voltage of inverter.
INVERTER MODEL
Solar Charger
Charging Current (PWM)
System DC Voltage
Operating Voltage Range
Max. PV Array Open Circuit Voltage
2. Max. Power Voltage (Vmpp) of PV modules should be close to best Vmp of inverter or within Vmp range to
get best performance. If one PV module can not meet this requirement, it's necessary to have several PV
modules in series connection. Refer to below table.
Model
1KVA
2KVA/3KVA
4KVA/5KVA
Note: * Vmp: panel max power point voltage.
The PV charging efficiency is maximized while PV system voltage is close to Best Vmp.
Maximum PV module numbers in Series: Vmpp of PV module * X pcs ≒ Best Vmp of Inverter or Vmp
range
PV module numbers in Parallel: Max. charging current of inverter / Impp
Total PV module numbers = maximum PV module numbers in series * PV module numbers in
parallel
Take 1KVA inverter as an example to select proper PV modules. After considering Voc of PV module not exceeds
50Vdc and max. Vmpp of PV module close to 15Vdc or within 13Vdc ~ 18Vdc, we can choose PV module with
below specification.
Maximum Power (Pmax)
Max. Power Voltage Vmpp(V)
Max. Power Current Impp(A)
Open Circuit Voltage Voc(V)
Short Circuit Current Isc(A)
Maximum PV module numbers in Series: 1
PV module numbers in Parallel: 10
Total PV module numbers: 1 x 10 = 10
Take 2K/3KVA inverter as an example to select proper PV module. After considering Voc of PV module not
exceed 60Vdc and max. Vmpp of PV module close to 30Vdc or within 30Vdc ~ 32Vdc, we can choose PV module
with below specification.
Gauge Torque Value
8 AWG 1.4~1.6 Nm
1KVA
12Vdc
15~18Vdc
50Vdc
Best Vmp
15Vdc
30Vdc
60Vdc
85W
17.6V
4.83A
21.6V
5.03A
9
2KVA 3KVA
50Amp
24Vdc
30~32Vdc
60Vdc
Vmp range
15V~18V
30V~32V
56V~72V
Max. PV module numbers in series
1  17.6 x 1 ≒ 15 ~ 18
PV module numbers in parallel
10  50 A / 4.83
Total PV module numbers
1 x 10 = 10
4KVA 5KVA
48Vdc
60~72vdc
105Vdc