EP0732718A1 - Einpol- und Nulleiter-Differentialschutzschalter - Google Patents

Einpol- und Nulleiter-Differentialschutzschalter Download PDF

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Publication number
EP0732718A1
EP0732718A1 EP96400519A EP96400519A EP0732718A1 EP 0732718 A1 EP0732718 A1 EP 0732718A1 EP 96400519 A EP96400519 A EP 96400519A EP 96400519 A EP96400519 A EP 96400519A EP 0732718 A1 EP0732718 A1 EP 0732718A1
Authority
EP
European Patent Office
Prior art keywords
neutral
circuit breaker
differential
phase
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96400519A
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English (en)
French (fr)
Other versions
EP0732718B1 (de
Inventor
Frédéric Comte
François Le Goaoc
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Legrand SA
Legrand SNC
Original Assignee
Legrand SA
Legrand SNC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Legrand SA, Legrand SNC filed Critical Legrand SA
Publication of EP0732718A1 publication Critical patent/EP0732718A1/de
Application granted granted Critical
Publication of EP0732718B1 publication Critical patent/EP0732718B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with differential transformer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/002—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 with provision for switching the neutral conductor

Definitions

  • the present invention relates to a unipolar and neutral differential circuit breaker.
  • circuit control apparatus which comprises, in an advantageously modular housing, a phase circuit and a neutral circuit, associated with a circuit breaker mechanism, the latter being controlled, on the one hand, by intensity detectors operating on the phase circuit, and, on the other hand, by a differential detector operating between the phase and neutral circuits.
  • the elements suitable for operating it also as a circuit breaker are introduced into the housing of a differential switch of known type.
  • the differential transformer extends over the entire width of the housing, thereby limiting the length of the switching chambers, and, consequently, the maximum acceptable nominal current.
  • a unipolar circuit breaker a block containing, on the one hand, a differential part, which generally comprises a differential transformer having a primary phase winding, a primary neutral winding and a secondary winding to which is connected an electromagnetic tripping relay, and, on the other hand, a neutral circuit with its own breaking mechanism.
  • the circuit of the single-pole circuit breaker is arranged to be connected to the phase winding of the differential transformer, the neutral winding being connected to the neutral circuit, and the various tripping mechanisms are coupled.
  • the size of the differential transformer and that of the neutral switch-off chamber are very small, which in particular limits the maximum acceptable nominal current.
  • a differential block is associated with a single-pole and neutral circuit breaker of the type with common phase / neutral compartment.
  • This known type of circuit breaker sometimes referred to as a single pole neutral circuit breaker with miniature housing, contains in a generally modular housing a phase circuit and a neutral circuit which, extending side by side, separated by a partition insulator, each comprising, between terminals acting at the short lateral sides of the housing, a fixed contact and a movable contact, the phase circuit comprising intensity detectors associated with a triggering mechanism, including a pivoting element, carrying the movable contacts of the two circuits, overlaps said insulating partition.
  • the differential block generally comprising a differential transformer having a primary phase winding, a primary neutral winding and a secondary winding to which an electromagnetic trip relay is connected, is attached to a large side face of the circuit breaker housing, the phase circuits and neutral of the latter being arranged so as to be connected with the corresponding windings of the differential unit, a mechanical connection connecting the trip relay and the circuit breaker breaker mechanism.
  • circuit breaker can be problematic when it is associated, for example on a rail, with other circuit control devices with modular housings.
  • the distance between terminals, located on the same small lateral side, of a circuit breaker with common phase / neutral compartment, of known type corresponds substantially to half that of a conventional bipolar circuit breaker, with two protected circuits, made up of the association, side by side, of two unipolar circuit breakers.
  • circuit breakers with common phase / neutral compartment cannot be connected to the supply combs suitable for conventional single-pole and multi-pole circuit breakers.
  • the present invention relates to a unipolar and neutral differential circuit breaker adapted to the supply combs of conventional unipolar and multipolar circuit breakers, and which nevertheless has an arrangement of its components allowing optimal occupancy of the interior space of its housing.
  • the neutral circuit is offset, relative to its terminals, towards the phase circuit, the space left free by this offset being occupied by the part differential.
  • the circuit breaker part In the case where the circuit breaker part is disposed opposite the terminals of the neutral circuit, it is the phase circuit which will be shifted towards the neutral circuit.
  • the circuit breaker part may occupy only, substantially, half the width of the housing while the neutral and phase terminals acting at the ends occupy all this width.
  • circuit breaker part may be the same as those used for circuit breakers with common phase / neutral compartments, in order to simplify the manufacture of the differential circuit breaker.
  • FIG. 5 An example of a unipolar and neutral differential circuit breaker 1, according to the present invention, is shown, in exploded perspective, in FIG. 5. It comprises a circuit breaker part 3, which is best seen in FIGS. 3 and 4, and a differential part 2, which is best seen in Figures 1 and 2.
  • the circuit breaker part comprises a phase circuit 50 and a neutral circuit 150 which, installed side by side, extend between respective terminals, 51 and 61 for the phase circuit, 151 and 161 for the neutral circuit.
  • the phase circuit 50 comprises, between terminal 51 and terminal 61, a bimetal thermal detector 52, forming first intensity detection means, a movable phase contact 53, a fixed phase contact 54, and a chamber d limited arc extinction between, on the one hand, a lower conductor 55 linked to the bimetallic strip 52, itself connected by a braid 57 to the movable contact 53, and, on the other hand, an upper conductor 56 which, carrying the contact fixed 54, is linked to an electromagnetic detector with excitation coil 58, forming a second intensity detection means.
  • the neutral circuit 150 comprises, between terminal 151 and terminal 161, a movable neutral contact 153, a fixed neutral contact 154, and a limited arc extinguishing chamber between, on the one hand, a lower conductor 155, connected by a braid 157 to the movable contact 153, and, on the other hand, an upper conductor 156, carrying the fixed contact 154.
  • the circuit breaker part 3 also includes a mechanical circuit breaker device 100, controlled by a lever 101.
  • a mechanical circuit breaker device 100 In a manner well known per se, such a device, not detailed in the accompanying drawings, comprises an element pivoting carrying the movable contacts 53 and 153 of the phase and neutral circuits, as well as a lock mechanism adapted to be unlocked by the detectors 52 and 58, so as to cause the pivoting of the contact-carrying element causing the opening of the phase and neutral circuits.
  • the lever 101 makes it possible to manually control the contact-carrying element and, when the device has been triggered under the control of one of the detectors, to reset the circuit breaker device 100.
  • Figure 3 shows the movable contacts 53 and 153 in the open position. Their ends are then located near the apexes of lower arcing horns which form, respectively, the conductor 55 and the conductor 155 at this location.
  • the differential part 2 comprises a differential transformer 111 and a mechanism 112 in which a relay trigger.
  • This mechanism 112 is connected to the mechanism 100 of the circuit breaker by mechanical connections (not shown).
  • Two conductors 15 and 115 respectively forming the primary phase winding and the primary neutral winding, are wound on the differential transformer.
  • these primary phase and neutral windings are connected to the corresponding circuits of the circuit breaker part. More specifically, they are installed in series in these circuits, the phase winding being interposed between terminal 51 and one end of the conductor 55 intervening between said terminal 51 and the bimetallic strip 52, and the neutral winding being interposed between the terminal 151 and one end of the conductor 155 on which the braid 157 is welded.
  • the connection conductors with the differential part of the phase and neutral circuits therefore intervene at the same side of the circuit breaker part, between the conductors connected to the movable contacts and the corresponding terminals.
  • a secondary measurement winding (not shown) is also wound on the differential transformer 111.
  • the two ends of this winding (not shown) are connected to the trigger relay of mechanism 112, so that, when an imbalance occurs between the currents flowing in the primary windings 15 and 115, a voltage is induced between the ends of the secondary winding, which activates the trigger relay of the mechanism 112.
  • the housing 10 which, in the example shown, contains the elements of the differential circuit breaker 1, is a housing modular which, conventionally, has a generally parallelepiped shape with a front extension 10A ( Figures 1 and 2), means for hooking to a rail acting on its rear part.
  • this housing 10 consists of two side shells 11 and 12, whose walls form the large lateral sides 16 and 17 of the housing, a central part 13, comprising an insulating partition 14 , parallel to the long lateral sides 16 and 17, and of an intermediate part 18 which, intervening between the central part 13 and the lateral shell 11, comprises an insulating partition 19, parallel to the partition 14.
  • This box 10 is provided, at its short lateral sides, with housings 20 adapted to receive the terminals of the differential circuit breaker 1.
  • Each of these housings 20 consists of the assembly of two half-housings carried respectively by the central part 13 and by one or the other of the side shells 11 and 12.
  • These housings 20 are closed, so that the terminals are isolated, not only from one another, by partitions parallel to the partition 14, but also from the compartments of the housing containing the differential part 2 and the circuit breaker part 3, by partitions. transverse 23, 24, 25 and 26.
  • Windows 21 and 22 which can be seen in Figures 7 and 8, are provided respectively in the transverse partitions 23 and 25, which delimit the housings 20 of terminals 51 and 151 and the transverse partitions 24 and 26, which delimit the housings 20 of the terminals 61 and 161, in order to allow the connection between the terminals and the corresponding circuits.
  • the windows 22 operate at the level of the upper ends of the corresponding housings 20, while the windows 21 are closer to the middle parts of the corresponding housings.
  • the housings 20 operating at the same small lateral side of the housing 10 each extend over a half of the thickness of the latter.
  • the pairs of terminal housings occupy the entire thickness of the housing 10 at the small lateral sides of the latter.
  • terminals 51, 61, 151 and 161 in the housing 10 is therefore comparable to that in a conventional two-pole circuit breaker, with two protected circuits.
  • terminals can be any known terminals in the field of circuit breakers and differential circuit breakers.
  • these are terminals of the so-called "lift” type, comprising a suitable cage, under the control of a screw, to slide in the corresponding housing, and a conductor, generally a bent blade, mounted fixed in the housing, on one face of which the wire or the tooth of the corresponding connection comb is applied, the cage coming to clamp said wire or said comb tooth against said conductor.
  • the circuit breaker part 3 operates in a compartment located opposite the phase terminals 51 and 61, as can be seen in FIG. 4.
  • This compartment is delimited by the large side wall 17, on the one hand, and by the insulating partition 19, on the other hand. Between the two, the insulating partition 14 divides the lower part of this space into a sub-compartment reserved for the phase circuit and a sub-compartment reserved for the neutral circuit.
  • the circuit breaker 100 operates above the insulating partition 14, in the space between the wall 17 and the partition 19, its pivoting contact-carrying element overlapping the insulating partition 14.
  • the phase circuit 50 extends between the terminals 51 and 61, conventionally, against the wall 17, over the entire length between the transverse partitions 23 and 24, which, intervening on either side of the insulating partition 14, delimit the housings 20 terminals, respectively 51 and 61.
  • the conductor 69 associated with the input terminal 51 passes through the partition 23 via the corresponding window 21.
  • transverse conductor 71 which, as can be seen in FIG. 5, is connected to the end of the lower conductor 55.
  • the latter in practice a cut and folded blade, consists of a first U-shaped part facing upwards, a second part, extending with a certain inclination towards the bottom, forming a lower arc-forming horn of the phase circuit, and a third part, extending against the base of the housing, above which the arc extinguishing chamber extends.
  • a branch of the second U-shaped part of this conductor 55 is cut into two blades extending side by side, one of which, in connection with the conductor 55 only by one of its ends, forms the support of the bimetallic strip on which the latter is welded.
  • the conductor 56 in practice a blade bent twice, comprises a horizontal portion extending near the upper limit of the partition 14, a vertical portion, carrying the contact fixed, and whose lower end is substantially horizontally opposite the top of the lower arc-forming horn, and, finally, an upwardly curved portion forming an upper arc-forming horn.
  • the horizontal part of the conductor 56 extends below the electromagnetic detector 58 which, installed above the insulating partition 14, occupies the entire width of the space delimited by the wall 17 and the wall 19.
  • the two ends of the coil of this electromagnetic detector are plumb with the sub-compartment reserved for the phase circuit 50, one of these ends being soldered to the conductor 56, and the other being soldered to a conductor 72, in practice the conductor associated with the terminal 61, which passes through the partition 24 via the corresponding window 22.
  • This conductor 72 extends transversely against the partition 24, before crossing the window 22, in an upper portion of the housing 10, above the insulating partition 14, here substantially at the level of the lower part of the electromagnetic detector 58. It is thus refocused with respect to terminal 61 with which it is associated.
  • the arc extinguishing chamber advantageously constituted, in known manner, by a stack of sheets (not shown).
  • phase circuit is, in known manner, installed in the housing 10 using positioning and / or hooking means, intervening, recessed or protruding, on the inner part of the side shell 12 and on the corresponding parts of the central part 13 and of the intermediate part 18.
  • positioning means come from molding with the shell 12, the central part 13 or the intermediate part 18.
  • FIGS. 7 and 8 we see, arranged on, respectively, the lateral shell 12 and the central part 13, the complementary supports 30A and 30B of the assembly formed by the conductor 55 and the bimetallic strip 52, called “under -thermal assembly ", as well as, arranged on, respectively, the lateral shell 12, the intermediate part 18, and the central part 13, the complementary supports 31A, 31B and 31C of the assembly formed by the electromagnetic detector 58, the conductor 56 and the conductor 72, called “electromagnetic sub-assembly".
  • the neutral circuit 150 extends, next to the phase circuit, opposite the terminals 51 and 61 of the latter, against the wall 19 of the intermediate piece 18.
  • This neutral circuit is therefore offset with respect to its own terminals 151 and 161, to the pair of phase terminals 51 and 61.
  • the partition 14 of the central part 13 isolates the neutral circuit from the phase circuit. This partition 14 is therefore offset, towards the wall 17, with respect to the parallel partitions which, acting at the ends of the central part 13, isolate the phase and neutral terminals from one another, at the level of one and the other side sides of the case.
  • the end of the conductor 155 is located at a certain distance from the partition 23 insulating the housing 20 from the terminal 51, opposite which said conductor is located.
  • a cut and folded blade in practice a cut and folded blade, consists, as seen in FIG. 3, of a first vertical part at the end of which is connected a transverse conductor 171 coming in the differential part 2, a second part, extending with a certain downward inclination, forming a lower arc-forming horn of the neutral circuit, and a third part, extending against the base of the housing, above which extends the arc extinguishing chamber.
  • the conductor 156 in practice a blade that is bent several times, comprises a first vertical portion, extending near the terminal 161, a first horizontal portion, being lower than the top of the lower neutral arc-forming horn, an upwardly curved portion, forming an upper neutral arc-forming horn, the upper end of which is higher than the top of the lower neutral horn neutral arc extinction, a second portion vertical, carrying the fixed neutral contact, and the upper part of which is substantially at the upper limit of the partition 14, a portion bent downwards, and a second horizontal portion, extending below the electromagnetic detector 58 , until near the transverse partition 24.
  • a conductor 172 In extension of the conductor 156 is a conductor 172, extending in the differential part and connecting to the neutral terminal 161.
  • This conductor has a transverse portion, the end of which is connected to the conductor 156, which, along the bulkhead 24 delimiting the housing 20 of the terminal 61, passes through the partition 19 by means of a window 33 formed in the latter. As shown in Figure 3, it then includes a vertical part allowing it to reach the level of the window 22 of the housing 20 of the terminal 151, by which it joins the latter.
  • the window through which the conductor 172 passes through the partition 19 is a notch opening out on the side of the housings 20. In this way, the intermediate piece 18 can be installed while the neutral circuit is already mounted and connected to its terminals.
  • this transverse partitioning means comprises a first part extending vertically and a second part extending horizontally, up to the transverse partition 24.
  • these conductors 156 and 172 are isolated from the conductor 72 the part of which outside of the housing 20 of the terminal 61 is located above this horizontal transverse partition 32, at a good distance from the conductors 156 and 172.
  • the means of transverse partitioning comes from molding with the part control unit 13.
  • the various elements of the neutral circuit are, in known manner, installed in the housing 10 using positioning and / or hooking means, intervening, recessed or projecting, on the corresponding parts of the central part 13 and of the intermediate piece 18.
  • positioning means come from molding with the central piece 13 or the intermediate piece 18.
  • Windows 34 and 35 are provided in the partition 14 carried by the central part, in order to allow the flexible conductor 70, connected to the conductor 69 of the terminal 51 of the phase circuit, and to the transverse conductor 71, connected to the conductor 55 of the circuit phase, to cross the sub-compartment reserved for the neutral circuit, in order to gain the differential part 2.
  • the window 34 is formed in the immediate vicinity of the transverse partition 23 insulating the housing 20 from the terminal 51, at the level of an upper part of the latter.
  • this window 34 are extended, in the compartment reserved for the neutral circuit, by partitions delimiting a transverse insulating tunnel through which the flexible conductor 70 passes through the compartment reserved for the neutral circuit. .
  • This tunnel opens out on the other side of the partition 19, which a notch 36 allows to pass through.
  • the window 35 is also provided in the immediate vicinity of the partition 23, below the window 34 at the level of a lower part of the housing 20 of the terminal 51.
  • this window are also extended in the compartment reserved for the neutral circuit, by partitions delimiting a transverse insulating tunnel through which the transverse conductor 71 passes through the compartment reserved for the neutral circuit.
  • This tunnel opens out on the other side of the partition 19, which a notch 37 allows to pass through.
  • the partition 19 carried by the intermediate part 18 separates the circuit breaker part 3 proper from the differential part 2. It comes into contact, on one side, with the border common of the transverse partitions 23 and 25 insulating the housings 20 from the terminals 51 and 151, and, on the other side, from the common border of the transverse partition 24 insulating the housings 20 from the terminal 61 and of the transverse partition 26 insulating the slot 20 of terminal 161.
  • the flexible conductor 70 and the transverse conductor 71 forming conductors for connecting the phase circuit to the differential part, pass through this partition 19 by means of notches 36 and 37 respectively.
  • the transverse conductor 171 connected to the conductor 155 of the neutral circuit, for its part, crosses the partition 19 by means of a window 38 acting near the notch 37, with a lateral offset towards the interior of the housing 1, and a longitudinal shift towards the front part of the latter.
  • the window 38 is, as can be seen in FIG. 5, extended by insulating partitions on the other side of the partition 19 in order to form a transverse insulating tunnel through which the conductor 171 passes.
  • this differential part 2 is installed in the space which is opposite the neutral terminals 151 and 161. In other words, it is enclosed in a compartment delimited, in width, by the transverse partitions 25 and 26, and, transversely, by the partition 19 and the large side wall 16.
  • the differential transformer 111 operates near the terminal 161 and extends, longitudinally, to, substantially, the middle of the housing. In height, it extends substantially from the base of the housing to, substantially, the middle of the housing.
  • the conductor flexible 70 extends against the partition 19 by describing an arc of a circle open towards the rear left corner of the housing 10, so as to best avoid the conductor 169 of the terminal 151, the end of the transverse conductor 171 and the end of the transverse conductor 71.
  • This end 81 extends from the transformer 111 to the conductor 71, which, leaving the insulating tunnel extending the window 35, is close to the lower part of the housing 20 of the terminal 151. At this point, bent, it s extends transversely against said conductor, with which it is welded.
  • this end 81 extends substantially horizontally, between the differential transformer 111 and the conductor 71, with, however, a slight downward inclination, so as to pass below the transverse insulating tunnel extending the window 38.
  • This end of the neutral winding is directly connected to the conductor 169 associated with the terminal 151, being, more precisely, welded on a lug of the latter which, leaving the housing 20 of the terminal 151 by the corresponding window 22, s' extends against the large side wall 16.
  • a second end 181 of the primary neutral winding 115 extends between the differential transformer 111 and the end of the transverse conductor 171 leaving the transverse tunnel extending the window 38, passing between the flexible conductor 70 and the large side wall 16.
  • this end 181 of the primary neutral winding 115 is located longitudinally between the other end 180 of this winding and the end 81 of the primary phase winding 15.
  • the four connections of the ends of the phase and neutral windings with the connection conductors to the corresponding circuits and the conductor 169 associated with terminal 151 are as far apart as possible from each other. other. Indeed, the ends 81 and 180, which are close to the large side wall 16, are at a good vertical distance from each other. As for the ends 80 and 181 which are closer to the partition 19, one is close to the differential transformer 111 as well as to the base of the housing 1, while the other is rather on the side of the housing 20 of terminal 151, at a middle portion of the latter.
  • this distance from the connection points is facilitated by the fact that the differential transformer occupies substantially one half, located on the side of terminal 161, of the compartment of the differential part, the rest of the space between this differential transformer and terminal 151, being left free to space the connection places of the phase and neutral windings with the corresponding connection conductors.
  • connection conductors also makes it possible to facilitate the remoteness of the different places of connection with the connection conductors.
  • the entire circuit breaker part is opposite terminal 61, the problem of the evacuation of gases produced by the electric arcs formed in one and the other sub-compartments of this circuit breaker, does not arise in the same terms as for the devices known in the prior art.
  • the central part 13 is specially arranged to allow the evacuation towards the outside of the gases formed in the sub-compartment reserved for the neutral circuit.
  • a passage 201 is arranged in the central part 13 in order to allow the evacuation towards the outside of these neutral gases, said passage intervening near the base of the housing 1 , between the housings 20 of terminals 61 and 161 which are on the side of the arc extinguishing chambers.
  • the gases which are formed in the neutral sub-compartment, leaving the arc extinguishing chamber, in the direction of the transverse wall 24, are directed towards a compartment 207 which, open on the lower part of said sub-compartment of neutral, is located against the lower part of the transverse partition 24 delimiting the housing 20 of the terminal 61.
  • this compartment 207 is formed at the level of one of the ends of the base of the housing 1 which are offset downward relative to a central part of said base of the housing 1, so the bottom of this compartment is below that of the rest of the neutral sub-compartment.
  • This compartment 207 is limited, transversely, by, on the one hand, the partition 19, and, on the other hand, the partition 14, including an extension 209, extending downwards and towards the housing 20 of terminal 61, is adapted to intervene opposite said compartment.
  • this compartment 207 is limited by the transverse partition 24 which, at the level of the lower part of the housing 20 of the terminal 61, is offset towards the corresponding small lateral side of the housing 1, as can be seen, for example, on the Figure 3, so that said housing 20 is narrowed at this level.
  • This compartment 207 apart from the partition 19 which closes it on one of its sides, is essentially formed in the central part 13.
  • compartment 207 It is in this compartment 207 that the passage 201 opens which crosses the lower part of the transverse partition 24, at its border with the lower part of the transverse partition 26 which delimits the housing of the neutral terminal 161. This passage therefore intervenes on the side of compartment 207 which is close to the extension 209 of the partition 14.
  • This passage 201 is delimited transversely by, on the one hand, a partition 204, corresponding to the lower part of the partition between the housings 20 of the terminals 61 and 161, and, on the other hand, a partition 203, intervening, as can be seen in FIG. 8, in the bottom of the housing 20 of the phase terminal 61.
  • the passage 201 occurs at the bottom of the housing 20 of the phase terminal 61, against the partition with the housing 20 of the neutral terminal 161, partitions isolating said passage from the rest of the housing 20.
  • This passage 201 extending rectilinearly, therefore emerges at the level of the corresponding small lateral side of the housing 1, as can be clearly seen in FIG. 8.
  • a passage 200 is also arranged in the half-shell 12 in order to allow the evacuation towards the outside of the gases formed in the phase sub-compartment, said passage occurring near the base of the housing 1, between the housing 20 of the terminal 61 and the large side wall 17.
  • the gases which are formed in the phase sub-compartment, leaving the arc extinguishing chamber, in the direction of the transverse wall 24, are directed to a compartment 206 delimited laterally between the partition 24 and a partition 205 which s 'extends parallel to the latter.
  • the partition 205 is pierced, over its entire height, with holes allowing the introduction of the phase gases into the compartment 206.
  • this compartment 206 intervenes at one of the ends of the base of the housing 1 which are offset downward relative to a central part of said base of the housing 1, so that the bottom of this compartment is below that of the rest of the phase sub-compartment.
  • This passage 200 is delimited transversely by, on the one hand, the large side wall 17, and, on the other hand, by a partition 202, acting, as can be seen in FIG. 7, in the bottom of the housing 20 of the phase terminal 61, opposite the partition 203.
  • a partition, connecting the upper side of the partition 202 to the large wall 17 covers this passage 200.
  • This passage 200 extending rectilinearly, therefore emerges at the level of the corresponding small lateral side of the housing 1, as can be clearly seen in FIG. 8.
  • the differential part is installed in the space which is opposite the neutral terminals 151 and 161 on the corresponding side of the partition. central.
  • the circuit breaker part which is installed in the space located opposite the terminals of the neutral circuit while the differential part then intervenes opposite the terminals of the phase circuit.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Emergency Protection Circuit Devices (AREA)
EP96400519A 1995-03-16 1996-03-13 Einpol- und Nulleiter-Differentialschutzschalter Expired - Lifetime EP0732718B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9503042A FR2731837B1 (fr) 1995-03-16 1995-03-16 Disjoncteur differentiel unipolaire et neutre
FR9503042 1995-03-16

Publications (2)

Publication Number Publication Date
EP0732718A1 true EP0732718A1 (de) 1996-09-18
EP0732718B1 EP0732718B1 (de) 1999-06-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96400519A Expired - Lifetime EP0732718B1 (de) 1995-03-16 1996-03-13 Einpol- und Nulleiter-Differentialschutzschalter

Country Status (5)

Country Link
EP (1) EP0732718B1 (de)
AT (1) ATE181619T1 (de)
DE (1) DE69602981T2 (de)
ES (1) ES2133186T3 (de)
FR (1) FR2731837B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0948021A1 (de) * 1998-04-03 1999-10-06 Legrand Multipoläre differenzial Schalter
EP3407373A1 (de) * 2017-05-27 2018-11-28 Siemens Aktiengesellschaft Isolierendes isolationselement für lichtbogenfehlererkennungsmodul und lichtbogenfehlererkennungsmodul

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3016078A1 (fr) 2013-12-27 2015-07-03 Legrand France Appareil electrique au format modulaire
FR3133267A1 (fr) * 2022-03-07 2023-09-08 Hager-Electro Sas Appareil électrique de protection

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375740A1 (fr) * 1976-12-22 1978-07-21 Nl Weber Mij Systeme de protection d'une installation electrique dans un batiment
EP0008026A1 (de) * 1978-08-04 1980-02-20 Heinrich Kopp GmbH & Co. KG Elektrischer Vollschutzschalter
EP0196241A1 (de) * 1985-02-27 1986-10-01 Merlin Gerin Einpol- und Nulleiter-Differentialschutzschalter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375740A1 (fr) * 1976-12-22 1978-07-21 Nl Weber Mij Systeme de protection d'une installation electrique dans un batiment
EP0008026A1 (de) * 1978-08-04 1980-02-20 Heinrich Kopp GmbH & Co. KG Elektrischer Vollschutzschalter
EP0196241A1 (de) * 1985-02-27 1986-10-01 Merlin Gerin Einpol- und Nulleiter-Differentialschutzschalter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0948021A1 (de) * 1998-04-03 1999-10-06 Legrand Multipoläre differenzial Schalter
FR2777110A1 (fr) * 1998-04-03 1999-10-08 Legrand Sa Disjoncteur differentiel multipolaire
EP3407373A1 (de) * 2017-05-27 2018-11-28 Siemens Aktiengesellschaft Isolierendes isolationselement für lichtbogenfehlererkennungsmodul und lichtbogenfehlererkennungsmodul

Also Published As

Publication number Publication date
FR2731837B1 (fr) 1997-06-06
ES2133186T3 (es) 1999-09-01
ATE181619T1 (de) 1999-07-15
EP0732718B1 (de) 1999-06-23
DE69602981D1 (de) 1999-07-29
FR2731837A1 (fr) 1996-09-20
DE69602981T2 (de) 1999-10-14

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