DE1142946B - Electric contact protection switch for the optional connection of mains and consumer - Google Patents

Description

GERMAN

PATENT OFFICE

B63116Vrab / 21c

REGISTRATION DATE: JULY 1, 1961

NOTICE THE REGISTRATION ANDOUTPUTE EDITORIAL: JANUARY 31, 1963

The invention relates to contact protection switches, as used in installation technology as fault current or are referred to as fault voltage switches and similar types in which a separate test circuit is provided in order to be able to check the functionality of the actual release system, by creating an artificial fault current by means of a manually operated push button between two phases or between a phase and the neutral conductor. The spatial one plays a role The position of the movable trigger element (magnet armature) within the installed arrangement is essential Role. Because of this, the position of use is also expressly indicated for such switches and an assembly deviating from this is not permitted because such a completely different triggering conditions would evoke.

In general, these switches are constructed in such a way that the terminal row on one side for the consumer connection and the other row of terminals in parallel on the opposite side are provided for the mains connection (Fig. 1). This arrangement can of course also be reversed accordingly be. The installer must therefore use the existing structure when installing a switch go out. However, since in some areas the grid is supplied from the ground, i.e. from below, while the consumer is connected to the other row of terminals, the same switch type only used in another area where the mains supply is from the roof side, when all the connecting lines cross behind the base of the switch, which in consideration the strong cable cross-sections created a considerable recess in the masonry at such a point must be, which is felt to be quite disadvantageous. It would of course be easily possible to do this To connect switches "upside down" in disregard of the connection regulations. This would turn out to be does not affect its actual function, but it changed the situation in relation to the mode of operation of the test facility. While with proper connection the test circuit only the current can then flow through it when the switch is in the on position in the opposite case, this test circuit is also connected to voltage when the switch is not switched on. If you If you now press the test button, a fault current is generated under load on the test resistor and a switch that is switched on, for example, is triggered. However, since when the switch or after it has been triggered with further pressure on the electrical contact protection switch

for optional connection

of the network and consumers

Applicant:

Busch-Jaeger Dürener Metallwerke AG,
Ludenscheid

Wolfgang Fuchs, Lüdenscheid,
Hans Arnold, Calve,

and Dipl.-Ing. Johannes Papproth, Lüdenscheid,
have been named as inventors

Test button in this case the test current continues to flow unchanged, there is a temporary overload of the test resistor & s on, which is usually only designed for the normal case, d. H. is chosen to be as small as possible in relation to its load capacity To keep space requirements and costs low.

In order to eliminate the mentioned difficulties in the wiring below the switch base, switches of this type have already been designed so that network and consumer connection can optionally be made or exchanged. With such switches (Fig. 2) was in the test circuit a second interruption point arranged, the bridging member on the movable The slide switch for the main contacts was attached in such a way that the switch-on movement of these Bridging links participate. As a result, the test circuit is only functional if the circuit breaker itself is in the on position; however, remains in its off position an actuation of the test button without electrical effect. - Although such an arrangement is in operation and assembly corresponds to the electrical and assembly requirements, means on the on the other hand, the device-like device with regard to an inevitable extension of the movable one Slide switch and the attachment of the additional current bridge and the corresponding contacts in this area an increased space requirement in the corresponding direction of the housing, which is becoming more expensive affects.

309 507/305

3 4

The invention solves this problem in the case of electrical key contact with the movable mating contact Contact protection switches for optional activation only in the preparatory contact termination of network and consumer and with a position that enables them, if the contact through a manually operated test button is intended to be switched on. In switchable Test circuit on a technically essential 5 switched state of this switch is movable uncomplicated and space-saving way, there is a counter-contact on the part of the jump mechanism by neither pivoting the sliding slide switch in such a way that no contact is made with the an extension must be granted and a movable test button contact can be made. In this additional The interruption point in the test circuit with this training is the arrangement of the actuating device thereby inevitably growing contact organs not tied to one another. Now can expenditure is to be provided. namely the test button directly in the input

In the direction of the switch button according to the invention, or its vicinity, it can be relocated

The first path is to be assumed to be known, but also one - since it depends on its actuation process

Contact of the test switch is independent when switched off, spatially separated from this

Contact protection switch by any point with a 15 that proves to be suitable,

Shift linkage mechanically connected lock moderately but probably from the top of the

to prevent. velvet arrangement can be operated. Of the

The previously existing constructions serve teren required the training according to the invention below

to dispense with the previously additionally required sub-

The action of the test button and button of the break point in the test circuit is advantageous

contact protection switch of a structural association only a single contact point, which at low

the operating elements of these two organs and the space required for the other elements of the

individual functional elements. In addition, the switches are by no means precisely defined in terms of location

movable test button contacts is tied to a fixed point.

Mating contacts provided. The same distinction can be made by the side feature, but above all the same disadvantage, test of the jump mechanism controlled mating contact on The button and the on / off button are not structurally separate from one another, a pivotable one or a spring-loaded one to be able to be attached to each individual organ space- force parallel adjustable carrier, borrowed to be arranged at a suitable point, has another of the motion lock with the shift rod or Construction in which the drive axis of the actuator 30 is the drive member effecting its displacement Contact protection switch is fixed to the test coupled. You can also use this contact carrier button is paired. train as angled leaf spring that is constantly in the

According to the invention, these inadequacies are aimed at the switch-off position and only through a directional one

eliminates the fact that in the training avS elek movement of the switching rod or the like in the switch-on

tric contact protection switch for the optional 35 position is relocated.

sen connection of the network and consumer and with a further development of the invention according to is zwieinem by a manually operated test button switch see the movably arranged mating contact switchable test circuit, the moving carrier and the test button contact to be operated from the spring mechanism opposite provided counter contact slide switch or the movements executing clock in such a way the movable, the current bridges 40 attached an insulating body to the jump mechanism part, or with the shift rod carrying this shift to consider at an approach of the movable - is connected that it can only be attached to the movements of the switching rod causing the contact protection switch 45 pivot member when the contact protection switch is closed.
is in the ready-to-contact position. While Figs. 1 and 2 show the current flows of the

In principle, the designs already mentioned are better known for a test facility manager with a similar design device, the function of which reflect contact protection switches via a knee joint arrangement, is shown in FIG. 3 depends on the movement of the key switch. the drawing shows a typical embodiment of the However, this joint is at its free end with 50 invention and in Fig. 3a the appropriate Auseiner Provided an additional contact bridge, the isostructure of an individual part of this version is shown attached two more, the same in addition. In this embodiment (Fig. 3) is The fixed contacts to be arranged are bridged, i.e. in this the test circuit 1 with the test resistor 2 Embodiment interrupted at least at three contact points by a contact point, which means is bound. In addition, the stationary 55 require the representation perpendicular to the plane of the drawing Contacts that apart from the normal test button contact movable current bridge 3 of the test button 4 at their th are provided, apart from the space requirement, depression can be bridged. It is an additional line expense as well as corresponding z. B. the one contact 5 of the contact point stationary relevant manufacturing and installation precautions. designed, the other contact 6, however, as a lever

In contrast, the invention is pivotable according to the 60, in such a way that it, for example Moving contact controlled by the test button under the action of a spring always changes to the additionally indicated one opposite a likewise movable counter-contact tried to swing the right position, so that he of arranged, which is shifted following the movements of the jump mechanism of the current, which is lowered when the test button is pressed, in such a way that this bridge 3 cannot be detected in a contact-making manner, Gen contact with the part of the test button 65 A pivoting of this contact lever 6 in the affected moving contact in contact ready position under the current bridge 3 is comes or no contact can be made. by the drive member 7 of the displaceable switching function according to if the movable test rod 8 is located, as soon as it is in the switch-on position

of the contact protection switch is adjusted. The drive member 7 and the shift rod 8 are provided with an insulating piece la on which the contact spring 6 rests. This contact spring can advantageously be designed in an L-shape , so that, if necessary, the implementation of a pivot axis and a special drive spring can be dispensed with.

Claims (2)

PATENT CLAIMS: 10 1. Electrical contact protection switch in the form of a fault current or fault voltage switch or the like for the optional connection of mains and consumer with a test circuit that can be switched on by a manually operated test button switch, whereby a contact of the test switch when the contact protection switch is switched off is mechanically connected to the switching linkage Locking is prevented, characterized in that the mating contact (6) provided opposite the movable ao test button contact (3) is connected to the movable switching rod (8) carrying the current bridges or to the spring mechanism part (7) causing this displacement movement in such a way that it is only in the ready-to-contact position when the switch is closed. 2. Electrical contact protection switch according to claim 1, characterized in that the carrier of the mating contact (6) can be pivoted about the end opposite it or is displaceable parallel to itself and the switching rod (8) causing the adjustment or the corresponding spring mechanism part (7) has an insulating body (Ta) between itself and the current-carrying contact carrier (6). Considered publications:
German Auslegeschriften No. 1006495, 1123751, 1020404. 1 sheet of drawings © 30? 507/305 1.