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 Smart Home, Let's discuss

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paskal
post Apr 18 2015, 02:31 PM

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QUOTE(ozak @ Apr 18 2015, 02:15 PM)
I always read and hear people said this same thing.

For me, it is just a waste of energy and time. Doesn't really usefull. The only reason I can think of is, it is a luxury thing.
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wasting energy? far from it.
embedded systems use far less energy than your wireless router or the astro receiver. correctly integrated it will save lots of electricity.
paskal
post Apr 19 2015, 09:13 AM

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QUOTE(ozak @ Apr 18 2015, 02:53 PM)
The unit is still running on energy. There is nothing is zero energy. And the energy that run on this controller unit is worth benefit to me?

I don't really need to ON the aircon and light before I reach home. It doesn't save my bill this way. I doesn't need a phone to control everything. When the step to ON a device is too many and take time.

This is really my experience that I try before many many yrs.
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sure. because it didn't work for you, i'm sure it won't work for anyone else.

cheers
paskal
post Jan 19 2018, 06:52 PM

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QUOTE(Zot @ Jan 18 2018, 08:04 PM)
This should work. No need to rewire anything. This is what I meant (not sure if your switch is like this. I didn't have one  biggrin.gif )

user posted image
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it will not work.
neutral will still be unbalanced when the yellow circuit is turned on because current sourced from red through red RCB but returned to yellow phase without through the red rcb.

QUOTE(Zot @ Jan 19 2018, 09:23 AM)
As far as I know the Neutral line is common to all 3 phases. House wiring is Y connection. So, not sure why you have separate N for different phase.

[attachmentid=9529140]
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because he has a secondary RCB just for the red phase. or just for that red circuit. deswai it trips when he connect L1 and L2 to different phase. because of neutral imbalance.

QUOTE(Zot @ Jan 19 2018, 10:37 AM)
If the N is common to all phases, then both drawing are basically the same. I'm wondering if you mixed up the looping wire and the wire to the bulb.

Anyway, the CB tripped when you switched on L1 or L2 or either one?
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N can be separated for an isolated, dedicated circuit with dedicated RCB just to monitor that particular circuit.
before being joined at the common N busbar and monitored by a primary RCB.

QUOTE(idoblu @ Jan 19 2018, 10:08 AM)
the second drawing - i didnt try that. I only drew it this morning.

Here is what I tried yesterday - it trips the elcb
[attachmentid=9529189]
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user posted image
paskal
post Jan 19 2018, 07:00 PM

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QUOTE(idoblu @ Jan 19 2018, 10:08 AM)
the second drawing - i didnt try that. I only drew it this morning.

Here is what I tried yesterday - it trips the elcb
[attachmentid=9529189]
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user posted image
since you know which neutral the line is returning to, change the live to the red phase together with the neutral. you get RCB protection to both circuit.

this will work if the blue line neutral is not shared / tumpang with some other blue neutral line.
paskal
post Jan 23 2018, 12:34 PM

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QUOTE(ozak @ Jan 23 2018, 12:31 PM)
You have 2 set of DB box with separate RCCD.

The 3phase of R1,2,Y1,2and B1,2 is share 1 neutral. While R3,4,5,6...etc share 1neutral. But subject to the neutral is connect to the RCCD.

Normally you will see the RCCD have 4 connection on it. 3P and neutral.

As long as your R1 connection doesn't go over to R3,4,5,6 neutral side, it won't be trip.
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No.
3 phase rccd will have 6 connection.
3 live 1 neutral in. 3 live 1 neutral out

1 phase rccd will have 4 connection.
1 live 1n in. 1 live 1n out.
paskal
post Jan 23 2018, 02:20 PM

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QUOTE(ozak @ Jan 23 2018, 12:48 PM)
Of course 6 connection la if you talk in and out.
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Ok
paskal
post Jan 23 2018, 05:03 PM

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QUOTE(ozak @ Jan 23 2018, 02:26 PM)
Gonna ask paskal

Getting more complicated liau.
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sorry it's 4 pole. 3P 1N.
user posted image

so 8 connection.
i'm bad with math dunno how to count. sorry
paskal
post Sep 24 2018, 03:50 PM

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QUOTE(Zot @ Sep 24 2018, 01:18 PM)
NCB? You mean MCB?

Nowadays more and more house is using RCCB (RCD) instead of ELCB. If the house has 3-phase wiring, the N is separated. So, you have 3 separate N wire. You cannot use N from other phase to return because it will trip RCCB. There would be 3 phase RCCB.

If 1 phase system, no problem.
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what a bunch of bull

laugh.gif
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