Search: Posts Made By: ericmark
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05-06-15, 11:34 AM
Replies: 18
Views: 4,062
Posted By ericmark

Do remember I live in Wales not US but I would...

Do remember I live in Wales not US but I would consider a generator better than solar panels for emergency power.

First the freezer cheap older freezers have single phase motors with a massive...
05-06-15, 10:44 AM
Replies: 19
Views: 5,531
Posted By ericmark

Thank you seems your 240 is like our 110 split...

Thank you seems your 240 is like our 110 split phase.
05-04-15, 04:18 AM
Replies: 19
Views: 5,531
Posted By ericmark

Intrigued is you voltage that accurate? In the UK...

Intrigued is you voltage that accurate? In the UK it was 240 volt but we harmonised with Europe so now 230 volt however when it was 240 it was plus/minus 6% but after harmonising it was plus...
04-15-15, 05:11 PM
Replies: 11
Views: 2,522
Posted By ericmark

You call it a "line interactive" inverter we call...

You call it a "line interactive" inverter we call it a "grid tie" inverter but it would seem they are nearly the same.

The "anti-islanding" is also required in the UK. In essence the way this...
04-15-15, 04:43 PM
Replies: 13
Views: 4,806
Posted By ericmark

Years ago in the UK the lights were gas and the...

Years ago in the UK the lights were gas and the fridge gas was lit with built in flint and the water pump had the option of being foot operated. At that time using split charging diodes was really a...
04-13-15, 04:09 AM
Replies: 11
Views: 2,522
Posted By ericmark

Here in UK it is nearly the same. DC and AC have...

Here in UK it is nearly the same. DC and AC have different demarcation between extra low voltage less than 50 volt AC to earth reduced low voltage that 55 ~ 63 volt to earth our 110 volt system. Low...
04-12-15, 03:54 PM
Replies: 11
Views: 2,522
Posted By ericmark

On posting reply found more answers. It would...

On posting reply found more answers. It would seem it is same as UK. Here also domestic stuff often does not have anything to stop re-start after a power cut but industrial normally it does.

From...
04-12-15, 03:43 PM
Replies: 11
Views: 2,522
Posted By ericmark

Thanks I thought it may have the same names. Just...

Thanks I thought it may have the same names. Just wanted to check. As to bonnet and hood correct. But we call it a glove box also, although we dip head lights which means the light is aimed lower to...
04-12-15, 05:49 AM
Replies: 11
Views: 1,232
Posted By ericmark

I have found over the years simple boiling water...

I have found over the years simple boiling water works wonders. Be it lead acid, zinc chloride, or any other battery it does not seem to matter boiling water works. Only when you can't use boiling...
04-12-15, 05:41 AM
Replies: 11
Views: 2,522
Posted By ericmark

NVR no volt release what does this mean in USA?

I live in Wales and our rules say unless the is a safety issue motors must not auto restart when power is returned after a power cut.

Most of our starters automatically do this be it direct on...
04-03-15, 01:53 PM
Replies: 9
Views: 845
Posted By ericmark

The problem is knowing when it has reached end of...

The problem is knowing when it has reached end of travel. Most likely is a current switch using a PLC this is easy by not so sure with relays on how you would latch the relay likely using a JK flip...
03-14-15, 03:49 PM
Replies: 18
Views: 2,098
Posted By ericmark

8 coils I would assume then 4 pairs which seems...

8 coils I would assume then 4 pairs which seems odd we would normally aim at three phase not four so I wonder how connected and spaced?

I have made a single phase alternator from an old truck...
03-14-15, 03:24 PM
Replies: 6
Views: 1,057
Posted By ericmark

I find it interesting. First let me say I live in...

I find it interesting. First let me say I live in Wales so we have 230 volt supplies but on building sites we also use 55 - 0 - 55 which we call 110 volt.

Our fluorescent lamps are not designed...
Replies: 3
Views: 638
Posted By ericmark

USA laptop power supply

In the UK lap top power supplies are normally switch mode devices rated 100 - 240 volt 50/60 Hz so we can use our lap top in USA. Is this also true in USA or do some lap top power supplies not cope...
05-11-14, 05:36 PM
Replies: 8
Views: 1,231
Posted By ericmark

I was surprised when I returned to college that...

I was surprised when I returned to college that school leavers seemed to have no idea on how to use a multi-meter however when I look back I did blow my AVO Multi-minor as a kid so suppose I must...
04-02-14, 01:36 PM
Replies: 3
Views: 955
Posted By ericmark

You need some method to increase the voltage the...

You need some method to increase the voltage the old induction coil we had at school did this http://physics-new.unl.edu/history/histinstr/induction_pix/InductionCoil.jpg in the main the old electric...
04-01-14, 05:47 PM
Replies: 7
Views: 1,291
Posted By ericmark

Again thank you for such a detailed account. Our...

Again thank you for such a detailed account. Our electric system is clearly not perfect we have a supply system called PME or TN-C-S where same wire is used for earth and neutral this on the odd time...
04-01-14, 04:38 AM
Replies: 7
Views: 1,291
Posted By ericmark

Thank you AllanJ what a great list so things do...

Thank you AllanJ what a great list so things do seem to be asking for problems when I see what things as called in USA when compared to Europe (Our regulations in UK are harmonised with Europe,...
03-31-14, 04:17 AM
Replies: 4
Views: 709
Posted By ericmark

I have done it required a special hollow post...

I have done it required a special hollow post drill and you use lead not solder to weld the new cells into the battery. The official way is with welding torch however I used a air arc rod and the...
03-31-14, 12:35 AM
Replies: 13
Views: 1,297
Posted By ericmark

A car battery will not last long they are not...

A car battery will not last long they are not designed for deep cycling you need a traction battery like used for golf trolleys or mobility scooters or a half way battery called a leisure battery.
...
03-31-14, 12:15 AM
Replies: 7
Views: 1,291
Posted By ericmark

Component Names

In the UK we seem to be having a problem with what items are called I wonder if the same is true in USA?

Examples.
Transformer we traditionally considered as being a wire wound device to step up...
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