Grid, Pv And Antennas Connection; Grid (Ac) Connection; Preparation; Connection To Ac Utility - Pyramid 5 KW 3 Phase User & Installation Manual

5

Grid, PV and Antennas Connection

5.1

Grid (AC) Connection

5.1.1

Preparation

Before connecting to AC utility, please install a
utility. This will ensure the inverter can be securely disconnected under load.
Note: Although this inverter is equipped with all types of protection, it's still necessary to install a
separate circuit breaker for safety consideration.
present 5 KW Three Phase Grid-Tied Solar Inverter.
Note: If one wants to add RCMU for additional safety, it shall be of type B with 30 mA leakage
current rating and 40 A nominal current rating. This RCMU can be placed between the inverter and
the grid utility.
Warning: It's very important for system safety and efficient operation to use appropriate cable
for grid connection. To reduce risk of injury, please use the proper recommended cable size as below.
Table 1: Suggested cable requirement for grid side wire (Phase, Neutral and Earth)
5.1.2

Connection to AC Utility

WARNING!! To prevent risk of electric shock, ensure the earth terminal of the solar inverter is
properly earthed before operating the solar inverter.
Outline size of SP21 series three-phase AC connector
ˆ Outline size of SP21 series IP68 connector.
5KW 3-Phase Grid Tied Solar Inverter
separate AC
Please use 350 V AC / 16 A circuit breaker for the
Model Conductor Cross-Section
5 KW 3 Phase
© Pyramid Electronics
circuit breaker between inverter and AC
2
= 2
9