Generators and Solar

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New Features

Last post by gregmcc « Thu Apr 23, 2020 12:23 pm
Posted in Announcements
Replies: 4
by gregmcc » Thu Apr 23, 2020 11:50 am » in Announcements

Hi everybody,
Just thought it was time for an update. We have over 160 members which is very good. Thank you for your support!

A few new features...

4 Replies

2031 Views

Last post by gregmcc
Thu Apr 23, 2020 12:23 pm

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PV Inverter incorrectly rated for the PV panels

Last post by PeteRig « Wed Dec 09, 2020 4:00 pm
Replies: 3
by PeteRig » Wed Dec 09, 2020 3:00 pm

I have a situation where a PV inverter's label has ratings less than the PV panel ratings:
The short circuit current rating (Isc) and the Max power...

3 Replies

139 Views

Last post by PeteRig
Wed Dec 09, 2020 4:00 pm
Number of DC isolators required?

Last post by AlecK « Wed Dec 09, 2020 10:43 am
Replies: 2
by TPower » Wed Oct 21, 2020 4:49 pm

If I have a PV system with two or more PV arrays connected to an inverter, what is the requirement for the number of switch-disconnectors?

I’ve only...

2 Replies

177 Views

Last post by AlecK
Wed Dec 09, 2020 10:43 am
Ordinary Duty Flexible Cord for PCE connection

Last post by AlecK « Sat Nov 21, 2020 10:26 am
Replies: 1
by JamieP » Fri Nov 20, 2020 8:42 pm

Is it suitable to use OD flex for connection from an isolator to inverter

3.9.7.4 leads me to believe that this is installation wiring as it is (i)...

1 Replies

111 Views

Last post by AlecK
Sat Nov 21, 2020 10:26 am
Solar Earth Value

Last post by JamieP « Fri Nov 06, 2020 9:16 pm
Replies: 9
by JamieP » Wed Nov 04, 2020 9:28 pm

I always ensure continuity of my earthing when completed a PV Array as we are required too and my values have always been very low so it's never been...

9 Replies

279 Views

Last post by JamieP
Fri Nov 06, 2020 9:16 pm
Adding battery to solar.

Last post by AlecK « Wed Nov 04, 2020 8:37 am
Replies: 2
by ElectricalApprentice » Sun Nov 01, 2020 1:17 pm

Hey guys.

I have a grid tied solar setup and we are looking at adding a battery bank to store the excess power being generated during the day. I...

2 Replies

135 Views

Last post by AlecK
Wed Nov 04, 2020 8:37 am
Batteries - How to know whether to apply 3011.1 or 3011.2

Last post by pluto « Tue Oct 27, 2020 11:47 am
Replies: 3
by JamieP » Fri Oct 23, 2020 9:07 pm

Or in other words, how do we know if a battery has vented or sealed cells?

For example I've been asked to install an LG Chem Resu 10 and Im trying...

3 Replies

185 Views

Last post by pluto
Tue Oct 27, 2020 11:47 am
Calculating array max voltage 4.2 5033:2012

Last post by JamieP « Tue Oct 20, 2020 5:56 pm

by JamieP » Tue Oct 20, 2020 5:56 pm

Just curious what temperatures people use for this? Do you use the lowest ever recorded for a region? Or the average lowest temp etc?

Also where is...

0 Replies

103 Views

Last post by JamieP
Tue Oct 20, 2020 5:56 pm
Lockable main switch at switchboard connection - 4777.1 2005

Last post by AlecK « Tue Oct 20, 2020 5:55 pm
Replies: 7
by JamieP » Sat Oct 17, 2020 9:23 am

Screenshot_20201017-091911_Drive.jpg

The switchboard we connect the inverter or PCE to must have a main switch that is lockable

How can we comply...

7 Replies

328 Views

Last post by AlecK
Tue Oct 20, 2020 5:55 pm
Solar Smart Meters Location

Last post by AlecK « Wed Oct 14, 2020 8:33 am
Replies: 3
by JamieP » Sun Oct 11, 2020 3:32 pm

I've been needing to install more and more smart meters in conjunction with inverters for better monitoring of PV systems.

My question is can such a...

3 Replies

191 Views

Last post by AlecK
Wed Oct 14, 2020 8:33 am
DC Switch Disconnector for PV system

Last post by TPower « Mon Oct 12, 2020 4:28 am
Replies: 3
by TPower » Sun Oct 11, 2020 1:27 pm

I’ve been doing inspections on two PV installs, and I have had a bit of difference of opinion with the electrician and his supplier regarding the DC...

3 Replies

195 Views

Last post by TPower
Mon Oct 12, 2020 4:28 am
Earth wire type for PV Array

Last post by JamieP « Wed Sep 30, 2020 8:41 am
Replies: 4
by JamieP » Tue Sep 29, 2020 1:40 pm
Rating: 50%

5033 2012 4.4.2.3 says All PV array protective equipotential bonding conductors shall comply with the material,
type, insulation, identification,...

4 Replies

252 Views

Last post by JamieP
Wed Sep 30, 2020 8:41 am
PCE Earth Connection

Last post by JamieP « Tue Sep 29, 2020 6:46 pm
Replies: 2
by JamieP » Tue Sep 29, 2020 1:33 pm

Screenshot_20200929-132857_Drive.jpg

Is connecting to the earth bar compliant? Or must I physically connect to the main earth?

If the latter,...

2 Replies

151 Views

Last post by JamieP
Tue Sep 29, 2020 6:46 pm
Connection of PV exposed conductive parts

Last post by AlecK « Tue Sep 29, 2020 9:41 am
Replies: 5
by JamieP » Sun Sep 13, 2020 8:32 pm

The bottom of 4.4.2.2 says

If the earthing is for bonding requirements only then the array earth may be connected to
the installation earth via...

5 Replies

327 Views

Last post by AlecK
Tue Sep 29, 2020 9:41 am
DC Voltage Drop

Last post by AlecK « Tue Sep 29, 2020 9:10 am
Replies: 5
by JamieP » Sun Sep 27, 2020 4:08 pm
Rating: 12.5%

Vd = I * L * Vc / 1000

5033 4.3.6.1 says to use 3008 for current carrying capacity but I'm just wondering if we can use the same for Vd

Basically I...

5 Replies

244 Views

Last post by AlecK
Tue Sep 29, 2020 9:10 am
Inverter AC isolator

Last post by JamieP « Thu Sep 24, 2020 7:07 pm
Replies: 6
by JamieP » Wed Sep 23, 2020 9:04 pm

Now, I've always installed these and was always under the impression I had to but actually looking now I'm not 100% sure if it's actually required...

6 Replies

310 Views

Last post by JamieP
Thu Sep 24, 2020 7:07 pm
Solar Conduit Labelling

Last post by AlecK « Thu Sep 24, 2020 10:17 am
Replies: 3
by JamieP » Sun Sep 20, 2020 2:38 pm

I'm just curious of opinions here

5033 2012 5.3.1 When conduit or other wiring enclosure is used, the wiring enclosure shall be labelled
‘SOLAR’ on...

3 Replies

239 Views

Last post by AlecK
Thu Sep 24, 2020 10:17 am
buried cable

Last post by AlecK « Tue Sep 01, 2020 12:22 pm
Replies: 1
by Peter » Tue Sep 01, 2020 8:54 am
Rating: 12.5%

At what voltage dose the standard come into pay . Ie can you buried a cable at say 24 volts at a depth less than the requirements as/nzs 3000.

1 Replies

212 Views

Last post by AlecK
Tue Sep 01, 2020 12:22 pm
System voltage Solar MPPT

Last post by AlecK « Tue Aug 04, 2020 3:49 pm
Replies: 7
by 1Sparky » Mon Aug 03, 2020 10:33 am
Rating: 62.5%

Hey guy's and gal's,

A client had purchased an off grid package - 5kW MPPT Solar inverter - (Charge controller, Mains charger, Inverter all in...

7 Replies

547 Views

Last post by AlecK
Tue Aug 04, 2020 3:49 pm
Inverter MCB in Meterbox

Last post by Energy « Wed Jul 29, 2020 11:00 am
Replies: 3
by Energy » Tue Jul 28, 2020 11:21 pm

Meterbox single phase, has mains going to isolation switch then through the meter then to a 63A MCB then to the MSB.
There is a Neutral and earth...

3 Replies

321 Views

Last post by Energy
Wed Jul 29, 2020 11:00 am
Earthing PV ELV DC micro inverter

Last post by JamieP « Sun Jul 19, 2020 8:59 pm
Replies: 1
by TPower » Sun Jul 19, 2020 8:53 pm

Micro inverter/solar installation. Is it necessary for the PV panel frames to be earthed? 1 micro inverter per panel, PV panels at ELV.

The...

1 Replies

229 Views

Last post by JamieP
Sun Jul 19, 2020 8:59 pm
small stand alone supply

Last post by gregmcc « Sun Jul 19, 2020 8:51 am
Replies: 3
by Shocker » Sat Jul 18, 2020 2:26 pm
Rating: 12.5%

Hi Team, I am after a stand alone solar/battery supply to run 2 x flashing lights for approx 8 hrs per day in a remote location. Anyone used or...

3 Replies

348 Views

Last post by gregmcc
Sun Jul 19, 2020 8:51 am
Wiring a solar inverter as a seperate supply. Possible?

Last post by hujambo « Sun May 31, 2020 4:32 pm
Replies: 2
by hujambo » Mon May 25, 2020 4:46 pm

Hi guys,

Hopefully someone can point me in the right direction here, I've tried the obvious places to find info, but all I can find is info on...

2 Replies

349 Views

Last post by hujambo
Sun May 31, 2020 4:32 pm
3 Phase motor running on generator

Last post by pluto « Sat Apr 25, 2020 5:24 pm
Replies: 2
by mrbarty » Sat Apr 25, 2020 2:08 pm
Rating: 50%

Is there an easy way to determine what size generator is needed to run a 3 phase compressor?

The motor on the compressor is 4 Kw 3 phase. I'm...

2 Replies

389 Views

Last post by pluto
Sat Apr 25, 2020 5:24 pm
PEW and Solar

Last post by AlecK « Tue Apr 21, 2020 10:25 am
Replies: 2
by gregmcc » Sat Apr 18, 2020 12:36 pm
Rating: 50%

At what point does work on PV (Solar) become PEW, disregarding any inverter that may be attached to the PV array.

A couple of examples,
1) a PV...

2 Replies

400 Views

Last post by AlecK
Tue Apr 21, 2020 10:25 am
Imported: Genset maximun load

Last post by DougP « Tue Apr 14, 2020 8:25 am

by DougP » Tue Apr 14, 2020 8:25 am

EricB
Nov 24 2018 18:50

When calculating the potential maximum demand/load for a residential property we are allowed a certain diversity factor...

0 Replies

210 Views

Last post by DougP
Tue Apr 14, 2020 8:25 am

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