single to 3phase conversion

[Refugee]

I would leave it on with the response in case there are others whom have not read all of the rules whom need to spot it.

[Yorkie]

Oh dear! It wasn't my intention to upset anyone by my post and judging by the nature and length of your response, David, it seems that is exactly what I have managed to do. I also note that your post has Joe's approbation.

So, on the basis of those things, and the fact that my post was indeed superfluous, since our forum does indeed carry that warning message, I would like my post to be deleted please.

Thank you.

Al. / Nov. 6, '13 //

Not in the least upset Al - that's why I stated that I didn't want it to come across as a rant, dismissive or flippant.

I accept of course that your comments were well intended, but the point I wanted to make is that unlike many forums which have a host of rules, which even moderators don't always understand, this forum has only five - all clearly written and unambiguous, with an emphasis on safety and personal responsibility. It is incumbent on users to read, understand and comply with the rules.

A high proportion of the posts on the forum involve working on equipment with potentially lethal voltages, and posters or others ought not to have to constantly include safety reminders in maybe every other post, as they would need to, given that this thread is no more hazardous than many, so where would we draw the line? My view is that the line has already been drawn by Rule 5.

I'd reiterate that if the consensus of the admin team is that users of the forum might not read the rules, and might also be careless, incompetent and have little regard for their own safety, then as I suggested, maybe a reminder should be placed at the top of the forum page as well as in the rules. I'd also suggest that any individuals who fit that description are in the wrong hobby and have no place here.

As to the length of my post, don't read too much into that. basically, I'm a windbag who too often could bore for Europe - the sort of guy I least like to find myself sat next to on train!

And for the avoidance of doubt, I'm just a member here - not a 'roost ruler', so I don't expect my views to prevail over anyone's else's.

[Radio Fixer]

The Bosch engineer who changed the lamp in our microwave also pointed out a large capacitor that should he checked was completely discharged by putting a heavily insulated pair of pliers across it. I imagine if you left one off for a day or so that would also be safe but I would still do the plier trick.

I thought it a daft design that the bulb couldn't simply be replaced from the outside once the outer casing was off. But maybe it has to be that way to keep emissions to the minimum.

Gary

[Yorkie]

The Bosch engineer who changed the lamp in our microwave also pointed out a large capacitor that should he checked was completely discharged by putting a heavily insulated pair of pliers across it. I imagine if you left one off for a day or so that would also be safe but I would still do the plier trick.

I thought it a daft design that the bulb couldn't simply be replaced from the outside once the outer casing was off. But maybe it has to be that way to keep emissions to the minimum.

Gary

Most microwave ovens seem to be designed that was Gary.

We used to have a Neff and I replaced it with a Siemens (Neff/Bosch/Siemens - same outfit). On neither of them could you replaced the bulb without removing the microwave and stripping it down, unlike conventional ovens which usually have a removable glass cover. I think the upshot is that they don't want non-technical householders replacing microwave oven bulbs as perhaps they might not replace the screening grille correctly.

When I came to replace the built-in oven and microwave which became unreliable after 20 years, I switched off the cooker isolator box only to find it was still live. On investigation, the electrician who wire up the house when newly built, had for some inexplicable reason, wired it incorrectly so that whether the switch was on or off, the appliances were still live. So much for 'professionals'. I had to switch off at the consumer unit and re-wire the cooker isolating switch before I fitted the ovens.

Our microwave gets used 4 minutes a day to cook my breakfast porridge - our NEF dishwasher built-in when the house was built has never been used in 23 years. More trouble than washing up!

[ex 2 Base]

Regarding micro wave transformer, one side of the secondary is attached to the earth/laminations, now if that is lifted and many turns are removed there the basis for a very good isolating transformer. As before, when the earthed connection is lifted and the transformer worked in reverse, one has good low voltage transformer with about 23 volts output. I have warmed up a transformer to soften the varnish and have removed some turns so that the output was 17 volts for a battery charger.If the low 5 volt voltage winding is removed then there is space to fit extra turns making a good 30 volt for 24 volt charger. To good to throw away.Ted

[Ed_Dinning]

Hi Gents, I seem to have started a good discussion. Some, but not all microwave transformers will have airgaps in the lams. These may work very well for battery chargers and have a self regulating characteristic; but will not be much use for phase converters unless they can be re-laminated without the airgap.

Colin, angle grinder trick should work well to free welded lams, but clean off all raggy edges; if the lams do not butt closely together the no-load current will be high. (this is catered for in gapped welder transformers by having a higher than usual t/v on the pri).

Ed

[Radio Fixer]

David

Our microwave gets used several times a day, porridge, home made soup for lunch (with home made bread of course) and all sorts of veg. gets done in it for evening meals (streamer bags I believe but very nice veg).

As to not using the dishwasher that's odd to us. Ours go on at the end of the day, every day, and that's even if we don't have visitors or people to dinner. We have enough crocks to put in it as we go along and my wife is certainly not a one pot chef. One of her interests is cooking and baking so it always fills. Almost nothing comes out of a packet here ...

Yes! I'm lucky but you are what you eat and its certainly true for me being lactose (all dairy products) intolerant and now soya and egg intolerant. Its useful that there is an egg replacer for baking.

And no one washes up better than a dishwasher, everything comes out like new particularly glass ware. It fills during the day, goes on in the evening and I empty it at breakfast. Apparently it uses less water than hand washing up as well.

To me its far preferable to continuous hand washing and, when we got one, it was just a new method of working that once used to comes naturally. Maybe they put in a 6ocm wide one for your house and that can be a bit intimidating for 2 people, a 50cm slim line one is probably better.

They are useful for the odd radio part as well

But after 23 years I guess you are to old a dog to learn a new way, if it still works !!

Gary

[Yorkie]

Re the dishwasher, we just don't create enough crocs to make it worthwhile, and in any event, we still use the Denby Greenwheat which we've had since we got married in 1962, which needless to say, isn't dishwasher proof. It isn't a question of being and old dog (which I am!), not wishing to learn new tricks - it's just that a dishwasher doesn't fit with our lifestyle. A microwave porridge bowl, Two cereal dishes, spoons and teacups for breakfast - a five minute job to wash and dry. A sandwich and cup of tea or coffee for lunch. Evening meal is usually pasta, risotto, fish (cod loin, salmon or tuna steaks etc), home made soups, etc. Never any baking - don't eat cakes and pastries, don't eat much bread, (shop bought), never have traditional Sunday lunches at home (IE, joints of meat).

The microwave gets used occasionally for veg - broccoli, carrots etc. If we're in a hurry, for jacket spuds, which we much prefer to be baked in the oven.

We don't have a settled lifestyle, spend a lot of time away from home and eat out at least a couple of times a week, sometimes more. We walk a lot on the Wolds and that means a packed lunch - no washing up!. At present we're in London with our elder son and his family, where the diishwasher fills up in minutes with seven of us in the house! I just don't like leaving crockery in the dishwasher all day with food on it, so I'd end up washing the food off before I put the dishes in the washer. For the few dishes, cups and utensils we use it would take almost as long to load and unload as it does to wash up after each use.

As to how big the dishwasher is, I haven't a clue - it hides behind a door front in the built-in kitchen units which never gets opened from one year to the next. I suppose it could be described as an 'N.O.S. dishwasher'! Just a waste of space really.

[AlanBeckett]

You could use it for storage young David. Small Radios and Records would fit nicely

Alan

[Joe]

I only have to wash-up about twice a week and a bottle of washing-up liquid lasts about a year.

I wouldn't want to be without a microwave though. That said I make porridge in a 'pan.

- Joe