Welcome to my electrical hobby page. My name is Gábor Héder.


Control of gorge dollop pump : the circuit with sensors and with impulse relays and timers was already existing. There was a table next to the board of swithes and relays. It was cannot be used without the table.  It was in operation for about one and half - two years, after that it was replaced by a PLC swithboard installing by a contractor. 

The switch circuit below made in the AUER Édesipari Kft., where I was repairman in that time. The problem of circuits made by alternative switches are probably well known in the electrical craft. (I mean problem in mathematics of course.) Because we did not learn much about it and I don't know writings in this subject and it hardly ever has utility enough, certainly it is discovered again by a lot of people who met such problems.  Probably the first swith circuits made by the first electricians, more than one hundred years ago. About the fact, that such switch circuits exist I know from my earlyer colleague, Emil Balla (mechanical engeener), who made one in his home. It is clean by his telling that is such circuit. If such switch circuits may not fit nothing else, these may fit to play a trick on electricians.  (Please come and look after what is the trouble, I have fitted up three switches, if this one is in this stand, and the other two are in these, the forefront lamp is lighting, if I am switching over this, the pantry lamp is lighting, if I switch over the middle one, the hall lamp is lighting but the the other two lams not, etc.) I am not mathematican, by my suspect the maximum outputs (number of possible positions) of these switch circuits, if it may order more electrical studs with relays to every switch, are the power of 2 where the exponent is the number of switches, that is eight in case of three swiches. I know this last one surely, because the circuit below also has three switches and would have had eight outputs, but there wasn't needed so much. These circuits don't have serious utility, because they have difficult wiring (complicated to looking over) and there is needed a table (with a scheme) with the possible stands of swithes and with the outputs of each switch stands. If it is figured out unlucky it may has "forbidden" combination, too. 
FE main distribution board and the 1st and 2nd floor distribution boards ( FE1 and FE2 ) of a pantioner house. The original plan made by István Horváth electrical designer. I comleted it with a difficult lighting control, with some outlets and with overvoltage protection. The control of lighting would have been more simple with automatic switches, these were installed only in the long corridors. Every forth lamp was connected to the standby lighting circuits. The contractor was the Energy System Bt. (later ESYS Kft.) The drawing FE-6-mod contents the automatic switch operation. As I remember, there are such lighting operation on the 1st and 2nd floor too, but these are not on the drawings.
The K1 was not a switching-off switch by my meaning, but the "0" position of it can be used for switching-off. There was a fault in the original FE-6 drawing, that version can switch off only the press-button control when K1 switch is on the "0" position.
I show you some of my works below, where along the contraction I had to make electrical drawings. There is one exeption there, the relay switch circuit of the haselnut castor, that is not my work, but I made the drawing going after the wiring. There are also one-linear switchboard schemes, these distributors did not contract and installed by me, I only made the plans.
Also from the AUER Kft. : control and driving of hazelnut castor. The relay switch circuit is not my work, but I had to draw it, partly because I installed the inverter (frequency control of the motor), partly because I had to supply the missing drawings. The relay control starts the electrical engine of hazelnut castor for every second impulse.
The boiler swithboard in the same house. This plan designed by me.
Király Udvar temporary main disrtibution board ( for the building site ). The residual current protection was in the connecting board.
My name : Gábor Héder, Tel.: 36 30 2 736 836,
e-mail : hedergabor@freemail.hu, hedergabor@egon.gyaloglo.hu, hedergabor@lycos.com
The first version of this page made in January 2006., Friday.
This page was developed in BlueVoda Website Builder
Not tested parts :