EP0563774B1 - Fernsteuerbarer Schutzschalter - Google Patents
Fernsteuerbarer Schutzschalter Download PDFInfo
- Publication number
- EP0563774B1 EP0563774B1 EP93104852A EP93104852A EP0563774B1 EP 0563774 B1 EP0563774 B1 EP 0563774B1 EP 93104852 A EP93104852 A EP 93104852A EP 93104852 A EP93104852 A EP 93104852A EP 0563774 B1 EP0563774 B1 EP 0563774B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- circuit breaker
- switch
- circuit
- drive
- 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.)
- Expired - Lifetime
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Classifications
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- 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
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/68—Power reset mechanisms actuated by electromagnet
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- 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
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
-
- 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
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/048—Means for indicating condition of the switching device containing non-mechanical switch position sensor, e.g. HALL sensor
-
- 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
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
- H01H2071/467—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts with history indication, e.g. of trip and/or kind of trip, number of short circuits etc.
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
- H01H47/226—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil for bistable relays
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/10—Electromagnetic or electrostatic shielding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/22—Polarised relays
- H01H51/2209—Polarised relays with rectilinearly movable armature
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- 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
- H01H71/04—Means for indicating condition of the switching device
-
- 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
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
- H01H71/16—Electrothermal mechanisms with bimetal element
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- 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
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/42—Induction-motor, induced-current, or electrodynamic release mechanisms
- H01H71/43—Electrodynamic release mechanisms
Definitions
- the invention relates to a remotely controllable circuit breaker with the features the preamble of claim 1.
- circuit breakers are used, for example, in the on-board networks of land vehicles, aircraft or ships. They are increasingly replacing conventional on-board circuit breakers in which the power lines are routed from the power source to the dashboard in the cockpit and from there to the electrical consumer.
- Remote-controlled circuit breakers can be arranged directly on the electrical consumer, so that the power lines are led directly from the power source to the electrical consumer, without going through the control panel.
- the circuit breaker is then switched on and off by an external remote switch located in the control panel. The external remote switch is only connected to the circuit breaker by control lines.
- Such an arrangement of remotely controllable circuit breakers reduces the cable weight in vehicle electrical systems and therefore also reduces the costs for cabling.
- the cabling itself is simplified and saves space.
- the structure of the control panel is also simplified, since it only consists of the control device, e.g. consists of the external remote switches.
- the control device can also be a computer. With the help of the control device the circuit breaker can be switched on and off, the switching state of contacts are displayed and tripping by overcurrent is displayed.
- a remote controllable circuit breaker known from US-A-3 706 100 (closest prior art) is one an external remote switch and an electromagnetic switch drive acting control electronics integrated.
- the switch drive is with one the circuit closing and interrupting push rod coupled.
- overcurrent becomes a bimetal of the circuit breaker that acts as a thermal release element activated.
- this bimetal causes the push rod to open and on the other hand an actuation of an integrated in the circuit breaker housing Auxiliary switch.
- This auxiliary switch in turn leads via the control electronics to switch off the remote switch.
- a disadvantage of the known Circuit breaker is the loose and therefore mechanically unstable coupling of the Switch rod forming push rod with those permanently articulated to the switch drive Drive levers.
- the object of the invention based on designing a remotely controllable circuit breaker such that it with a few components simplified in its structure and thus its Susceptibility to interference is reduced. This task is due to the combination of features of claim 1 solved.
- This switch drive also fulfills the requirements for EMC (electromagnetic compatibility) in vehicle electrical systems. At the same time, it supports stable operating positions of the circuit breaker. This switching drive ensures high holding, pushing and pulling forces with low control energy consumption. This has a cost-saving effect, while the performance of the circuit breaker is increased. A simple construction of the mechanics is thus possible for reliable closing and interruption of the circuit. This has a favorable effect on the dimensioning of the circuit breaker housing and on the cost of the circuit breaker.
- the auxiliary switch acts as a link between the control electronics and the Switch drive on the one hand and the mechanics of the circuit breaker on the other and uses the switching movement of the key switch without additional components after tripping the circuit breaker to trip the external Remote switch off.
- the remote switch in turn works via the control electronics on the switch drive so that it locks again with the switch lock becomes. This creates a defined in a simple automatic sequence Circuit breaker off position reached.
- the coupling of the key switch with the control electronics enables one Reduction of the components to trigger the various operating functions. This is the prerequisite for a simple construction of the circuit breaker. This reduces its cost and increases its reliability.
- Claims 2 and 3 support the orderly and automatic functional sequence of the circuit breaker.
- the electrical signal of the additional switch for Control electronics can be used to control these specific functions of the Trip circuit breaker.
- the functional sequence is thus from the switch position of the shift actuator. This also contributes to the orderly functional sequence the circuit breaker.
- the switching position of the switching drive can also easily by the electrical signal of the additional switch e.g. be displayed optically or acoustically.
- the additional switch according to claim 5 causes by its connection to the Control electronics in a technically simple way the release for restart of the circuit breaker.
- the reclosure is therefore of the Switching position of the switching drive depends, whereby the orderly Functional sequence is still supported.
- Claim 6 relates to a preferred embodiment of the switch lock. This embodiment supports the simple structure of the circuit breaker.
- the mechanical movements of the key switch are in the switch position of the auxiliary switch coupled. There is a display without additional components the operating position of the key switch possible. Stable switch positions of the Switch lock ensure reliable switching of the auxiliary switch and avoid malfunction of the circuit breaker.
- the auxiliary switch can advantageously also be used as a rotation limit stop be used.
- the bimetal is with the switch position of the Auxiliary switch coupled and enables a display without additional components the bimetallic release. It is also due to the bimetallic release unlatching ensures that the circuit breaker is switched off.
- a circuit breaker according to claim 8 is also for other measurands Suitable for overcurrent.
- the signal at the sensor replaces this Signal of the auxiliary switch when it switches as a result of bimetallic release and acts on the control electronics in the same way.
- control electronics enables this convenient and space-saving installation in the circuit breaker.
- the control electronics can be in case of a defect exchange easily. So there are also repair times at the circuit breaker reduced.
- a circuit breaker according to claim 10 takes into account external connection options to the circuit breaker via its terminal block, e.g. for measuring purposes. This makes it easy to check various functions of the Circuit breaker possible.
- Claims 11 and 12 relate to a simple possibility of the switching position the key switch via a display device that can be connected to the connection block to signal.
- the remote switch is in a simple manner to the Control electronics can be connected. A defective remote switch can be without any special Assembly effort can be exchanged. In addition, different Types of remote switches are used without the circuit breaker structure to change.
- a single-pole circuit breaker according to claim 14 is simple Use of such circuit breakers according to the number of Current phases also as a multi-pole circuit breaker, e.g. suitable for three-phase current.
- the design of the single-pole circuit breaker is not changed for different phase numbers. This means reduced Manufacturing and logistics costs.
- Claim 15 relates to a further possibility, several single-pole circuit breakers to couple to a multi-pole circuit breaker. This allows the terminal blocks save for one.
- Claim 16 avoids sources of electrical danger, e.g. Risk of short circuit and ensures the safe functioning of the single-pole as well as the multi-pole Circuit breaker.
- Claim 17 relates to an advantageous measure for coupling several single-pole circuit breaker to a multi-pole circuit breaker. With this Multi-pole circuit breakers can save switch drives except for one will and reduce the cost of this circuit breaker.
- Claim 18 relates to a preferred embodiment of the switch lock. This embodiment supports the simple structure of the circuit breaker and effective power transmission of the rotary movements of the levers for the Switch positions of the key switch. This is a reliable opening and Guaranteed closing of the circuit.
- the mechanical movements of the latch lever according to claim 20 are with the switch position of the auxiliary switch coupled. There is a display without additional components the operating position of the key switch possible. Stable switch positions of the Switch lock ensure reliable switching of the auxiliary switch and avoid malfunction of the circuit breaker.
- Claim 21 enables with a corresponding arrangement of latch lever and auxiliary switch whose switching with little effort. For this purpose, the displacement and / or rotary movement of the latch lever exploited.
- the auxiliary switch can advantageously also be used as a rotation limit stop be used.
- Claim 22 facilitates the switching of the auxiliary switch by means of the latch lever.
- Claim 23 relates to a measure for opening the circuit in the event of overcurrent.
- the bimetal is connected to the switching position of the Auxiliary switch coupled and enables a display without additional components the bimetallic release. It is also due to the bimetallic release unlatching ensures that the circuit breaker is switched off.
- the shift rod attached to the shift actuator enables good power transmission during the switching process of the switching drive on the circuit breaker of the circuit breaker.
- Claim 25 relates to a measure for mechanical coupling between Switch drive and switch lock.
- Claim 26 enables a very effective power transmission between the Drive lever and the latch lever of the key switch.
- the arranged according to claim 29 in the circuit breaker create the Requirement for a low installation height of the circuit breaker.
- the circuit breaker only takes up a small amount of space. Farther the assembly of the individual components within the circuit breaker is facilitated.
- Fig. 1 the assemblies contained in the circuit breaker 1 are schematic and their mutual coupling is shown. These assemblies are one Control electronics 2, an electromagnetic switching drive 3, a switching lock 4, a bimetal 5, an auxiliary switch 6 and an additional switch 7.
- the switching position of the auxiliary switch 6 is clear from the switching position of the switch lock 4 given.
- the switching position of the additional switch 7 is due to the switching position of the switching drive 3 clearly given.
- the switch lock 4 is either by bimetallic release or opened by actuating the switching drive 3.
- the auxiliary switch 6 provides feedback to the Control electronics 2 to also switch off an external remote switch 8.
- the remote switch 8 By means of the remote switch 8, a user can change the switching state of the circuit breaker 1 remote control. The after the bimetallic release of the circuit breaker 1 off remote switch 8 indicates to the user that the circuit breaker 1 is switched off.
- the remote switch 8 causes a Feedback to the control electronics 2 to the switching drive 3 by means of a Actuate current pulse.
- the user can turn on or off of the remote switch 8 change the switching position of the switching drive 3.
- the external signal changed switching position of the switching drive 3 changed via the switch lock 4 - if the switching drive 3 and switch lock 4 are locked are - the switching status of the circuit breaker 1.
- the functional sequence of the circuit breaker 1 is shown in more detail.
- Generated from a remote switch 8 switched on by the user the control electronics 2 a current pulse to the electromagnetic Transfer switching drive 3 to its on position.
- the switching drive 3 and the switch lock 4 are latched together so that the switch lock 4 is transferred to its closed position. This is the circuit closed.
- the auxiliary switch is located 6 in switch position I. While the switch drive is in the switch-on position 3 is the additional switch 7 in switch position I.
- the circuit can now either by bimetallic release or by the user using the remote switch 8 are interrupted.
- the bimetal 5 acts on the switching lock 4 to unlatch the latter from the switching drive 3 and into its open position convict.
- the circuit is interrupted.
- the switching lock 4 switches the auxiliary switch 6. It is located therefore in switching position II.
- the switching drive 3 not actuated, so that the additional switch 7 remains in the switching position I.
- the new switching position of the auxiliary switch 6 effects via the control electronics 2 a signal to turn off the remote switch 8.
- the off Remote switch 8 in turn causes a current pulse in the control electronics 2, to now also move the switching drive 3 into its switch-off position. After reaching its switch-off position, the switching drive 3 with the switch 4 still in its open position again latched.
- the switching drive 3 switches the Additional switch 7 so that it is now in switch position II.
- the Switch position of the key switch 4 is unchanged, so that the auxiliary switch 6 remains in switch position II.
- the new combination of Switching positions of auxiliary switch 6 and additional switch 7 allows this User, the circuit breaker 1 through the remote switch 8 again turn on. With this automatic sequence is the same Starting position of the various modules for switching on the Circuit breaker 1 is reached as it is after the external switch-off of the Circuit breaker 1 is achieved by the user.
- the internal control electronics 2 of the single-pole circuit breaker 1 explained. It is for both DC voltage (e.g. 28 volts) as well as for AC voltage (e.g. 115 volts). This is by a voltage limit 9 and an internal power supply 10th reached.
- the additional switch 7 is with the switching position one with the switching drive 3 connected drive lever 11 (Fig. 6) coupled.
- the auxiliary switch 6 is with the switching position of a contact lever 12 via a latch lever 13 coupled.
- Auxiliary switch 6 and additional switch 7 are via signal lines with inputs of a leading edge control arranged within the control electronics 2 14 connected.
- the outputs of the phase control 14 are via an input 15 denoted by “1” of the control electronics 2 connected to the remote switch 8.
- the input 15 is on a connecting line 16 (Fig. 15) connected.
- the remote switch 8 is e.g. in the cockpit one Aircraft arranged.
- the ⁇ bistable switching coil '' of the block diagram corresponds to the switching drive 3.
- the switching drive 3 receives its control energy via a pulse generator 17 and a transistor full bridge 18 connected thereafter.
- a status indicator 19 shows the respective switching position of the contact lever 12 as Part of the key switch 4.
- a microswitch serves as Status indicator 19. It is in the plane of the drawing from Fig. 6 to Fig. 8 behind the Auxiliary switch 6 arranged and therefore not shown there. He will too as the auxiliary switch 6 switched by means of the latch lever 13.
- the status indicator 19 is connected to three connecting lines 16 (FIG. 15).
- the Connection sockets 20 of a connection block 21 is a display device the status indicator 19 can be connected. This can e.g. optically or acoustically display whether the circuit is open or closed.
- the control electronics 2 react to an external switching signal (remote switch 8) as well as an internal switching signal.
- the inner switching signal is through the bimetal 5 or triggered by a sensor. It is also a combination of Sensor and bimetal 5 possible.
- the sensor is electrically parallel to the Auxiliary switch 6 switched.
- the remote switch 8 is e.g. switched on.
- the control electronics 2 receives thereby an external switching signal at input 15.
- the outer switching signal generates about one pulse generator 17 and full transistor bridge 18 30 ms current pulse for the electromagnetic switching drive 3.
- the drive lever 11 is turned to its on position, the contact lever 12 reaches its contact position (Fig. 6). If the remote switch 8 is switched off, the switching drive 3 receives an opposite, also approximately Current pulse lasting 30 ms. Drive lever 11 and contact lever 12 are transferred to their off position (Fig. 7).
- circuit breaker 1 If the circuit breaker 1 is triggered by overcurrent (Fig. 8), it causes Combination of the switching positions of auxiliary switch 6 and auxiliary switch 7 via the phase control 14 a current flow through the remote switch 8th This current is approximately the multiple of the nominal current of the overcurrent protection switch acting remote switch 8.
- the drive lever 11 is located with bimetallic release still in its switch-on position (Fig. 8). The flow of electricity by the remote switch 8, however, causes this to be triggered. Of the The circuit inside the remote switch is therefore interrupted. Thereupon there is an electrical signal at the input 15 of the control electronics 2, whereby the switching drive 3 receives a current pulse via the pulse generator 17. Of the Drive lever 11 is turned to its off position (Fig. 7) and switches the auxiliary switch 7.
- the switching drive 3 consists essentially of an annular permanent magnet 22, a hollow cylindrical armature 23, the switching rod 25 penetrating through the armature 23 in the axial direction 24 and two housing halves.
- the permanent magnet 22 consists, for example, of an alloy of cobalt and rare earths.
- the two housing halves are the cylindrical pot bottom 26 and the also cylindrical pot lid 27.
- the facing annular End faces of the pot base 26 and the pot lid 27 are in Final assembly condition locked together (Fig. 5).
- the circular outer surface 28 of the pot lid 27 contains a central rod guide bore 29 and two strand bores 30.31.
- the circular outer surface 28 is with the remaining area of the pot lid 27 made in one piece. This will avoid air gaps to improve the magnetic force effect. The same applies to the bottom of the pot 26.
- the armature 23 is firmly connected to the shift rod 25 by two fixing pins 37 (FIG. 5).
- the fixing pins 37 engage in a form-fitting manner in two grooves 38 (FIG. 4) formed on the shift rod 25 and in corresponding pin bores 39 in the armature 23.
- An adjustment slot 40 running in the axial direction 24 is formed in the end region of the switching rod 25 facing the pot lid 27.
- the adjustment slot 40 runs transversely to the axial direction 24 in accordance with the diameter of the shift rod 25. By means of the adjustment slot 40, the shift rod 25 can be simply rotated mechanically for adjustment purposes.
- the flattening 41 also serves to transmit an actuating torque.
- the end region of the switching rod 25 facing the pot bottom 26 is designed as a rod thread 42 (FIG.
- the coupling member 43 like the drive lever 11 (FIG. 6), contains a bore which is penetrated by a coupling axis 45 running in the depth direction 44 (FIG. 13).
- the structure of the drive lever 11 and the parts connected to it is explained in more detail below (FIG. 13).
- a truncated cone 46 is directed inwards on the pot lid 27 in one piece molded.
- the truncated cone 46 tapers in the direction of the opposite one Pot bottom 26 and is central from the rod guide bore 29 in Opened in the axial direction 24.
- the armature 23 has the truncated cone on it 46 facing end face a truncated cone adapted to the truncated cone 46 Recess on. The same applies to the truncated cone 46 'of the pot bottom 26 and the end face of the armature 23 facing this.
- the conical recesses and elevations increase the pole surfaces between the armature 23 and the pot lid 27 or pot base 26. This increases the magnetic force effect. Since the pot base 26 and the pot lid 27 are made of magnetic material, the magnetic circuit within the switching drive 3 is closed and completely magnetically sealed from the outside. No leakage occurs to the outside, which means that the switching drive 3 meets the requirements for electromagnetic compatibility (EMC) when using the circuit breaker 1 in vehicle electrical systems.
- EMC electromagnetic compatibility
- the permanent magnet 22 is magnetized radially (FIG. 5) with the south pole facing the pot cover 27 and the north pole facing the armature 23.
- the direction of the magnetic field generated by the permanent magnet 22 corresponds to the direction of the arrow 47.
- the coils 34, 34 ' are connected in series.
- the coils 34, 34 'through which current flows also generate a magnetic field. Its direction corresponds to the arrow direction 48 in FIG. 5.
- the two magnetic flux directions in the region of the armature 23 abutting the truncated cone 46 are directed in opposite directions. In the area of the truncated cone 46 ', these two directions of magnetic flux are rectified.
- the current direction in the coils 34, 34 ′ is reversed, the armature 23 is moved in the axial direction 24 in the opposite direction.
- the switching drive 3 lies in a housing base 49 (FIG. 6). He is regarding its essential functional parts are a symmetrical component with one in the axial direction 24 extending axis of symmetry.
- the axial direction 24 (FIG. 6) runs parallel to a transverse direction 50 (FIG. 14).
- the drive lever 11 extends substantially in a direction perpendicular to the depth direction 44 and arranged perpendicular to the transverse direction 50 longitudinal direction 51. It is by means of a housing-fixed and extending in the depth direction 44 Drive lever axis 52 rotatably mounted. It should be mentioned that the Rotation axes of all levers of the switching mechanism running in the depth direction 44 and are thus arranged perpendicular to the plane of movement of the levers. This is a prerequisite for the small installation height of the circuit breaker 1.
- the drive lever 11 is a two-armed lever, the arms of which in the transverse direction 50 are offset from each other. The arm of the switch rod 25 facing away from Drive lever 11 forms its latching end 53.
- a latch plate 54 is fitted and fastened to it.
- the latch plate 54 engages positively according to the type of cutting edge of a cutting edge bearing into a latching notch 55 of the latching lever 13.
- the latch lever 13 consists of a drive lever 11 facing latch arm 57 and a switching arm 58.
- the ends of both Lever arms of the latch lever 13 are offset from one another in the longitudinal direction 51 arranged.
- the latch lever 13 extends essentially in the transverse direction 50.
- the knee joint axis 56 also extends through the Bores of two levers 59 and 60.
- the two levers 59, 60 form a toggle lever with the knee joint in the area the knee joint axis 56.
- the levers 59, 60, the contact lever 12 and the latch lever 13 form the switching lock 4.
- the levers 59, 60 are arranged approximately in the longitudinal direction 51. That of the knee joint axis 56 opposite end of the lever 59 is fixed to a housing Lever axis 61 mounted. The end of the lever 59 in the area of the knee joint axis 56 is extended conically in the longitudinal direction 51. It forms a boundary 62. The limiting lug 62 extends so far into one area of the lever 60 that they with a on the drive lever 11 facing Interact surface of the lever 60 molded nose stop 63 can. In Fig. 6, the nose stop 63 is rectangular. Limiting nose 62 and nose stop 63 limit the mutual Swivel range of the levers 59.60.
- the end of the lever 60 facing the contact lever 12 forms the end of the contact lever 64 of the toggle.
- Contact lever 12 and contact lever end 64 of the toggle lever are connected to one another via a pivot bearing 65.
- an axis passes through a bore in the contact lever end 64 and the contact lever 12.
- the contact lever 12 extends essentially in the transverse direction 50.
- the contact lever 12 is a two-armed Lever with a bearing end 66 facing the drive lever 11 a contact end facing away from it.
- the contact lever 12 contains a longitudinal slot 68. It is of a housing-fixed Contact lever bearing 69 penetrated.
- the longitudinal slot 68 allows one Sliding mobility of the contact lever 12 during its pivoting.
- the contact lever 12 forms a one-armed Lever.
- Bearing end 66 and contact end 67 are offset in the longitudinal direction 51 arranged against each other.
- the two connecting bolts run 70,70 'facing surface of the contact lever 12 in the region of its contact end 67 parallel to the transverse direction 5.
- this surface In the area of the bearing end 66 this surface, however, beveled in the direction of the drive lever 11.
- On this beveled surface is an approximately semicircular contact lever knob 71 molded. With its convex side, it is the connecting bolt 70,70 'facing.
- the convex side of the contact lever knob 71 is one with a contact pressure spring 72 connected pressure plate 73 tangent.
- the contact pressure spring 72 lies in a form-fitting manner in a molded-on housing bottom 49, hollow cylindrical spring housing 74 a.
- the contact pressure spring 72 generates one Longitudinal compressive force 51.
- the pressure plate 73 adjoins vertically, in the direction of the connecting bolts 70,70 'tapering to a cheek 75.
- the cheek 75 is with the Pressure plate 73 in one piece and with an indicator lever 76 in a pivot point 77 connected.
- the indicator lever 76 itself is in a housing-fixed pin 78 rotatably mounted.
- the display lever 76 consists of two mutually perpendicular Arms whose intersection is the center of the pin 78 corresponds. The longer of the two arms of the display lever 76 is approximately in Longitudinal direction 51 aligned. It forms the indicator arm 79 with a flange-like Extension at its free end.
- the flange-like extension is arcuate and extends approximately in the transverse direction 50.
- the display arm 79 gives the display arm 79 the shape of a hammer.
- the one pointing in the longitudinal direction 51 The end face of the flange-like extension forms a display surface 80. It is to the opening of the viewing window 119 formed on the housing base directed. This is a visual display of the operating position of the Contact lever 12 possible.
- the end of the connecting bolt 70 on the housing bottom is positively connected to a U-shaped current branch 81 and is electrically contacting this current branch 81.
- the current branch 81 is fastened to a housing inner wall of the circuit breaker 1 by the connecting bolt 70.
- the two U-legs of the current branch 81 are arranged parallel to the transverse direction 50.
- the two U-legs are of different lengths.
- the shorter U-leg is pierced in the region of its free end by a cylindrical bolt opening 82 for positive connection with the connecting bolt 70.
- a main contact 83 and a lead contact 84 are fastened to the longer U-leg on the surface facing the contact lever 12.
- Main contact 83 and lead contact 84 are plate-shaped with a rectangular outline.
- a main contact 83 ' which is configured similarly to the main contact 83 and the lead contact 84, and a lead contact 84' are arranged.
- the main contact 83 ' is formed on the surface of the contact end 67 facing the current branch 81.
- the main contact 83 ' projects beyond the contact lever 12 in the depth direction 44.
- the lead contact 84' is formed on the free end of a strip-like spring clip 85.
- the spring clip 85 is fastened to the contact lever 12 with its fastening end 86.
- the fastening end 86 is provided with a rectangular pin opening 87.
- the pin opening 87 is penetrated by a rivet pin 88 (FIG. 6), as a result of which the connection between the contact lever 12 and the spring clip 85 is created.
- the fastening end 86 is bent toward the drive lever 11 relative to the rest of the spring clip 85, which runs in the transverse direction 50, approximately in the longitudinal direction 51.
- the part of the spring clip 85 which runs approximately in the transverse direction 50 is penetrated by a slot, with the exception of its free end 89 which carries the forward contact 84 '.
- the contact lever 12 lies in this slot.
- the dimensions of the slot which is rectangular with a view in the longitudinal direction 51, are dimensioned somewhat larger than the width of the contact lever 12 in the depth direction 44 and the length of the contact lever 12 in the transverse direction 50.
- the free end 89 is extended by a bracket extension 90.
- the temple extension 90 is opposite the free end 89 by 180 ° in the direction of the Contact lever 12 bent.
- the bracket extension 90 carries the forward contact 84 'on the surface.
- To the Free ends 89 close in the longitudinal direction 51 two parallel spring cheeks 91.91 '. They are integrally formed on the spring clip 85. In the transverse direction 50 they extend over the free end 89 to the area of Contact end 67 of the contact lever 12.
- the contact end 67 of the Spring cheeks 91,91 'flanked on both sides. Their height in the longitudinal direction 51 increases continuously from the contact end 67 along the transverse direction 50 until it is in the area of the bending point between free end 89 and bracket extension 90 drops abruptly.
- the transverse direction 50 there is a bearing bore 92 for the pivot bearing 65 (FIG. 6) approximately in the center of the contact lever 12.
- a connection end of a strand 93 is soldered or welded to the bearing end 66 on both sides.
- the connection ends of the wire 93 for the contact lever 12 form the free ends of two U-legs.
- the U-bottom of the strand 93 is covered in FIG. 9 by the rail extension 94 of a busbar 95.
- the concealed U-bottom of the strand 93 is also soldered or welded to the rail extension 94.
- the rail extension 94 is a metal strip with a rail slot 96 which is rectangular in the direction of view from the longitudinal direction 51. The rail slot 96 is penetrated by the drive lever 11.
- the drive lever 11 is molded from plastic to effectively additionally isolate the circuit from the windings of the coils 34, 34 '.
- the rail extension 94 is arranged parallel to the transverse direction 50. In a connection area to the busbar 95 running parallel to the longitudinal direction 51, the rail extension 94 is bent through 45 ° in the direction of the connection bolt 70 '.
- Busbar 95 and rail extension 94 are made in one piece from a metal strip. However, the metal strip is only about half as wide in the depth direction 44 in the area of the busbar 95 as in the area of the rail extension 94 Grooves on.
- the contact lever 12 is in an off position.
- the spring clip 85 bears against the main contact 83 'with pretension. Will the Bring the contact lever 12 into its contact position, first meet the lead contacts 84.84 'on each other. With a slight delay, the Main contacts 83.83 'on each other. In the contact position of the contact lever 12 the spring clip 85 is lifted off the main contact 83 '.
- Current branch 81 takes place in the area of the main contact 83 and the lead contact 84 a current division. The current division depends on the resistance of the individual components. The greater part of the current overflows the contact lever 12.
- the lead contacts 84, 84 ' have good burning properties and therefore a higher contact resistance.
- the main contacts 83, 83 ' have a small number Contact resistance, however, are more susceptible to arcing.
- the total resistance is briefly increased.
- the main arc then occurs between the contact area of the Lead contacts 84.84 '.
- the arc between the main contacts 83.83 ' goes out beforehand. The arcs that arise are not shown in the figures Extinguished quenching plates cooled to shorten the extinguishing times.
- the further course of the current can be started from the explanations in FIG. 9 explain with reference to FIGS. 10 and 11.
- the two partial flows add up in the area of a carrier console 98 again.
- the carrier bracket 98 contains a cylindrical bolt opening 82 'accordingly the branch 81 (FIG. 9).
- the bolt opening 82 ' is used for positive locking and electrically contacting connection with the connecting bolt 70 '(Fig. 6).
- the structure of the individual parts of the overcurrent monitoring device from FIG. 10 is explained with reference to FIG. 11. It is a bimetallic assembly with a U-shaped bimetal 5.
- the U-bottom forms the movement end 100 of the bimetal 5 and extends in the depth direction 44.
- the movement end 100 is bent in the region 50 remote from the bimetal legs 99.99 'in the transverse direction 50 by 45 °.
- This bent region runs in a plane parallel to the region of the rail extension 94 which is likewise bent by 45 °.
- the width of the bimetal 5 in the depth direction 44 is somewhat smaller than the corresponding extension of the rail extension 94.
- the region of the movement end 100 which is bent by 45 ° is connected a bimetal protrusion 101.
- the bimetallic projection 101 Seen in the transverse direction 50, the bimetallic projection 101 is of rectangular configuration. It is arranged in a plane parallel to the bimetallic legs 99.99 '.
- the bimetal projection 101 has a smaller extent in the depth direction 44 than the movement end 100 and is integrally formed at the end of the bent region of the movement end 100.
- the free ends of the bimetallic legs 99.99 ' are directed towards the connecting bolt 70'. These free ends are approximately square-shaped contact ends 102, 102 '.
- the contact ends 102, 102 ' are offset from the rest of the bimetallic legs 99.99' in the direction of the busbar 95.
- the busbar 95 covers the bimetal leg 99, seen in the transverse direction 50.
- the shunt circuit 97 is also U-shaped. It is arranged in a plane parallel to the bimetal 5.
- the U-base of the shunt current path 97 projects beyond the two shunt legs 103, 103 'in the depth direction 44. Its extension in this direction is somewhat larger than the corresponding extent of the rail extension 94.
- the two shunt legs 103, 103' and the adjoining leg ends 104, 104 ' correspond in outline form and Arrangement about the bimetallic legs 99.99 'and their contact ends 102.102'. However, the leg ends 104, 104 'are extended by contact pieces 105, 105'.
- the leg end 104 ' is extended approximately in the longitudinal direction 51 by means of the contact piece 105'. However, the contact piece 105 'is bent away from the bimetal 5. Seen in the transverse direction 50, the contact piece 105 'is approximately square. The leg end 104 has a greater extension in the depth direction 44 than the associated shunt leg 103. This is followed by the contact piece 105, bent at right angles and directed onto the busbar 95. Seen in the depth direction 44, the outline shape of the contact piece 105 is essentially rectangular. The contact piece 105 is pierced in its central region by a rectangular contact opening 106 in the depth direction 44 (FIG. 12).
- the surface of the busbar 95 facing away from the housing cover 148 in the final assembly position contains, as already mentioned in FIG. 9, a plurality of grooves and bulges.
- the contact bulge 107 extending in the depth direction 44 is formed.
- Its outline shape is adapted to the outline shape of the contact opening 106 in such a way that a positive connection between the conductor rail 95 and the contact piece 105 is produced in the final assembly state.
- the leg end 104 is pierced in its area facing the leg end 104 'by a screw opening 108 in the transverse direction 50. Its outline corresponds approximately to that of a semicircle with its concave side facing the leg end 104 '.
- the screw opening 108 enables an adjusting screw 109 with its insulating pin 110 to reach through the leg end 104 without contact in the final assembly state and to act on the contact end 102 of the bimetal 5.
- the cylindrical insulating pin 110 is integrally formed on the end face of the adjusting screw 109 facing the bimetal 5.
- the direction of action of the adjusting screw 109 corresponds to the transverse direction 50.
- the adjusting screw 109 is mounted in a threaded bore 111.
- the threaded bore 111 breaks through a currentless branch 112 of the carrier bracket 98 in the transverse direction 50.
- the branch 112 has the outline shape of a rectangular plate. In the area of its corner edge facing the shunt 103 and diagonally opposite corner edge, the branch 112 is recessed in a rectangular manner.
- a shunt contact surface 113 is integrally formed on the carrier console 98.
- the outline shape of the shunt contact surface 113 is essentially rectangular when viewed in the transverse direction 50. While the de-energized branch 112 is arranged parallel to the leg end 104 of the shunt current path 97 in the final assembly position, the shunt contact surface 113 is bent in the direction of the busbar 95.
- the shunt contact surface 113 and the contact piece 105 ' which is also bent towards the leg end 104', are arranged in mutually parallel planes.
- a bimetal contact surface 114 running parallel to the busbar 95 is integrally formed.
- the bimetal contact surface 114 is square.
- the plate-like bimetal contact surface 114 projects beyond the shunt contact surface 113 in the depth direction 44 on the side facing away from the branch 112.
- the branch 112 and the shunt contact surface 113 are connected to one another via a base piece 115.
- the base piece 115 is rectangular in the longitudinal direction 51.
- the base piece 115 is the part of the support bracket 98 on which the connecting bolt 70 'is electrically contacted in the final assembly position.
- the bottom piece 115 is broken through by the cylindrical bolt opening 82 ′ in the longitudinal direction 51.
- the adjusting screw 109 becomes the contact end 102 of the bimetal 5 pressurized.
- the current flowing according to the explanations in FIG. 9 is divided in the region of the rail end 116.
- a part flows through the bimetal 5 from the contact end 102 to the contact end 102 '.
- the other current component flows through the shunt current path 97 from the contact piece 105 to the contact piece 105 '.
- the two partial currents add up again in the region of the shunt contact surface 113 of the carrier console 98.
- the bimetal 5 is designed such that the movement end 100 is deflected in the direction of the shunt current path 97 in the event of an overcurrent. This corresponds to a deflection side 117 (FIG. 10).
- the opposite direction along the transverse direction 50 corresponds to a rear side 118.
- the thermal deflection movement is supported by an electrodynamic force acting on the bimetal leg 99.
- Busbar 95 and bimetal arm 99 act like two parallel conductors through which current flows in opposite directions. Such conductors repel each other due to the electrodynamic force.
- the shunt arm 103 and the bimetallic arm 99 act like two parallel conductors through which current flows. Such conductors attract due to the electrodynamic force.
- the electrodynamically induced deflection movement of the bimetal 5 supports its thermal deflection movement, particularly in the case of very large overcurrents. This increases the tripping sensitivity of the circuit breaker and reduces the tripping time.
- the bimetallic assembly shown in Fig. 10 and in Fig. 11 is for amperages suitable above 50 A.
- the operating positions of the circuit breaker 1 are explained with reference to FIGS. 6 to 8. 6, the contact lever 12 is in its contact position.
- the main contacts 83, 83 'and the flow contacts 84, 84' rest against one another with their mutually facing end faces, so that the circuit inside the circuit breaker 1 is closed.
- the switch lock 4 is closed.
- the toggle lever formed from the two levers 59 and 60 is in its extended position.
- the limiting lug 62 and the lug stop 63 prevent the toggle lever from being stretched beyond its extended position.
- the contact lever 12 is guided on the contact lever bearing 69.
- the contact pressure spring 72 acts with its spring force in the longitudinal direction 51 by means of the pressure plate 73 on the contact lever knob 71 of the contact lever 12.
- the contact lever 12 is rotated clockwise with the pivot bearing 65 as the axis of rotation.
- the contact lever end 64 of the toggle lever presses the contact lever 12 with the contact lever bearing 69 as the axis of rotation in the clockwise direction in the direction of the connecting bolts 70, 70 '.
- sufficient contact pressure is generated on the main contacts 83, 83 'and on the flow contacts 84, 84'.
- the position of the indicator lever 76 depends on the position of the contact pressure spring 72. Both components are connected to each other via the pivot point 77.
- the indicator arm 79 is rotated about the pin 78 as the axis of rotation.
- the viewing window 119 accordingly shows whether the circuit is open or closed.
- the drive lever 11 is in its switched-on position in FIG. 6. It is held in its switched-on position by the holding force of the switching drive 3.
- the magnetic direction of flow within the switching drive 3 is oriented such that the armature 23 rests with one end face on the truncated cone 46 of the pot lid 27.
- a torsion spring 120 is additionally provided. It is fixed to the bolt 121 which is fixed to the housing and extends in the depth direction 44.
- One spring leg is supported on a cam 122 of the drive lever 11.
- the cam 122 is formed on the end of the drive lever 11 facing away from the latching lever 13.
- the second spring leg rests on a housing pin 123 which is also fixed to the housing and extends in the depth direction 44.
- the force effect of the torsion spring 120 is the same as the magnetic force of the switching drive 3 in the switched-on position of the drive lever 11.
- the magnetic force must counteract the pressure of the torsion spring 120.
- the force required by the switching mechanism 4 is low. 6
- the latching plate 54 lies in the latching notch 55. As a result, drive lever 11 and latch lever 13 are latched together. This ensures a stable extended position of the toggle lever and a reliable retention of the contact lever 12 in its contact position.
- the drive lever 11 is in its off position.
- the armature 23 then moves in the axial direction 24 on the Truncated cone 46 'of the pot base 26 and is only after the current pulse by the force of the permanent magnet 22 in its new switching position held.
- the drive lever 11 is thereby with the drive lever axis 52 as Rotation axis turned counterclockwise and in its off position transferred.
- a pressure arm 124 formed on the drive lever 11 is pressurized in the off position of the drive lever 11, the additional switch 7.
- the drive lever remains during the transition to its switch-off position 11 latched to the latch lever 13.
- the toggle is in its kink position transferred.
- the contact lever 12 with the contact lever bearing 69 as an axis of rotation counterclockwise rotated and transferred to its off position.
- Unlatching from Drive lever 11 and latch lever 13 is not possible because of the latch lever 13 by means of a torsion spring not shown in the figures Knee joint axis 56 is rotated clockwise such that it is the latch end 53 of the drive lever 11 pressurized.
- the not shown Torsion spring is mounted on the knee joint axis 56.
- the latch lever is also located 13 with its surface facing the contact lever 12 on Nose stop 63 and with the end of its switching arm 58 on the stationary fixed auxiliary switch 6 on. A rotation of the latch lever 13 about Counterclockwise knee joint axis 56 is therefore additionally difficult. The latch lever 13 remains reliably in its transverse direction 50 parallel layers. While the drive lever is in the off position 11 pressurizes the end of the switching arm facing the auxiliary switch 6 58 a switch button 125 of the auxiliary switch 6.
- Fig. 8 shows the relationships of the mechanics of the circuit breaker 1 after bimetallic release.
- the bimetal 5 extends through with its bimetal projection 101 a slide 126 housed parallel to the transverse direction 50 in the area its one drive end.
- the opposite drive end in the transverse direction 50 of the slide 126 is from a drive arm 127 of an angle lever 128 enforced.
- the angle lever 128 consists essentially of the Drive arm 127 and a perpendicular to it and approximately in the transverse direction 50 extending unlatching arm 129.
- the angle lever 128 is with a circular extension of the unlatching arm 117 in the area of Intersections of both arms 115, 117 can be rotated about an angle lever axis 130 stored.
- the angle lever 128 is by a spring, not shown in the Turned clockwise.
- the slide 126 is driven by the drive arm 127 moved towards auxiliary switch 6.
- the drive arm 127 and the bimetal projection 101 of the bimetal 5 are each located in recesses of the slide 126.
- the bimetal protrusion 101 has depending on the adjustment point within the recess of the slide 126 assigned to it and ambient temperature another location. Around the slide 126 cannot be driven unintentionally by changing ambient temperatures the drive arm 127 of the bell crank 128 e.g. from a compensation bimetal consist.
- the bimetal projection 101 is deflected in the event of an overcurrent in the direction of the shunt current path 97.
- the slider 126 is driven in the same direction.
- the angle lever 128 is rotated counterclockwise about the angle lever axis 130.
- the unlatching arm 129 of the angle lever 128 strikes the surface of the switching arm 58 facing it and pressurizes the latching lever 13 in this area.
- the latch lever 13 is rotated counterclockwise about the knee joint axis 56.
- Latching plate 54 and latching notch 55 disengage, which leads to unlatching of drive lever 11 and latching lever 13.
- the drive lever 11 remains in its switched-on position.
- the latching lever 13 in FIG. 8 performs the same movement in the direction of the switch button 125 as when the drive lever 11 was transferred from its switched-on position (FIG. 6) to its switched-off position (FIG. 7).
- the transfer of the contact lever 12 into its switch-off position during the free release by the bimetal 5 after the release of the drive lever 11 and the release lever 13 corresponds to the explanations in FIG. 7.
- sensors can also be used to detect the Circuit breaker 1 from its on position to its off position switch.
- the sensor is electrically connected in parallel to the auxiliary switch 6 and triggers the switching function when specified values are exceeded or undershot.
- sensors can e.g. Temperature sensors, pressure gauges, accelerometers, Tachometer or Hall probes.
- the drive lever 11 facing end of the shift rod 25 is with the rod thread 42nd Mistake.
- the rod thread 42 engages in an internal thread 131 of the Coupling member 43 a.
- the internal thread 131 breaks through in Longitudinal direction 5 centrally a base plate 132.
- the base plate 132 is in the transverse direction 50 seen square.
- the base plate is in the final assembly state 132 arranged perpendicular to the longitudinal extension of the shift rod 25.
- the base plate 132 is part of the coupling member 43.
- the areas of the coupling member flank the Coupling holes 133,133 'the drive lever 11. In this area is the Drive lever 11 provided with a coupling axis opening 134.
- the coupling holes 133, 133 'and the coupling axis opening 134 are in the final assembly state penetrated by the coupling axis 45.
- the diameter of the Coupling bores 133, 133 ' is smaller than that of the coupling axis opening 134. This difference eliminates tolerances that occur during operation of circuit breaker 1, balanced.
- the axis 45 also penetrates two intermediate lever holes in the final assembly state 135,135 'of an intermediate lever 136.
- the intermediate lever bores 135,135' break through associated flanking parts 137, 137 '.
- the flanking parts 137, 137 'arranged parallel to one another are components of the intermediate lever 136. They are designed conically in the longitudinal direction 51 with approximately semicircular, the cam 122 of the drive lever 11 facing Cone tip.
- the flanking part 137 is also with a bearing bore 138 provided.
- the corresponding hole in the flanking part 137 ' is not shown in Fig. 13.
- An intermediate lever axis 139 extends through in the final assembly state the bearing bore 138 of the flanking part 137 and corresponding bore of the flanking part 137 'and an intermediate lever bearing 140.
- the intermediate lever bearing 140 breaks through the drive lever 11 and is adapted to the outline of the intermediate lever axis 139.
- the flanking parts 137, 137 ' touch the drive lever 11 on the outside in the region of its intermediate lever bearing 140.
- the intermediate lever 136 is thus in the final assembly state mounted on the drive lever 11.
- the flanking parts 137.137 ' are connected by a base part 141 arranged perpendicular thereto.
- the Base part 141 is square-shaped in the transverse direction 50 with a central one Leg bore 142. Seen in the longitudinal direction 51, the base part 141 is U-shaped with free ends of the U-legs directed at the drive lever 11.
- the U-legs of the base part 141 partially form the connection points between Base part 141 and flanking parts 137, 137 '.
- a compensating spring 143 in the transverse direction 50. In the final assembly state, it pressurizes the surface of the base part 141 facing the drive lever 11.
- the compensating spring 143 is adjusted so that the armature 23, with its end faces facing the truncated cones 46, 46 ', can bear directly against them.
- Manufacturing tolerances between the switching mechanism 4 and the switching drive 3 occurring at the beginning or during the operation of the circuit breaker 1 can be compensated for by the switching rod 25.
- a screwdriver for example, engages in the adjustment slot 34 of the shift rod 25.
- Shift rod 25, coupling member 43, intermediate lever 136, compensating spring 143, torsion spring 120 and drive lever 11 cooperate in such a way that the play between drive lever 11 and latch lever 13 is compensated for in order to ensure a safe latching and unlatching of these two components.
- the air gap between the armature 23 and the truncated cone 46 or the truncated cone 46 ' can be kept constant to achieve a constant magnetic force.
- the leg of the torsion spring 120 supported on the housing pin 123 passes through the compensating spring 143 and the leg bore in the final assembly position 142 (Fig. 6).
- the cam 122 limits the longitudinal extent of the drive lever 11 on its the end facing away from the latching lever 13 (FIG. 6).
- the cam 122 has in the depth direction 44 a circular outline shape with a semicircular Extension of part of the circumference. At the extreme longitudinal extent of the drive lever 11, the cam 122 is different from the circular one Outline flattened approximately in the transverse direction 50.
- the cam 122 is in Depth direction 108 penetrated by a bore. In the cams 108 several Drive lever 11 can be introduced a common axis, so that a Mechanical coupling of several circuit breakers 1 is created.
- the cam 122 is in the depth direction 44 is wider than the adjoining region of the Drive lever 11.
- this area of the drive lever facing the shift rod 25 11 is recessed in the longitudinal direction 51. Seen in the transverse direction 50 this recess is 144 U-shaped. The drive lever 11 is thereby by the Shift rod 25 is not hindered during its rotational movements. To the with the area of the drive lever 11 provided with the recess 144 closes an area widened in the depth direction 44. In this area is the balancing spring 143 used.
- the drive lever 11 is by means of a lever axis bore 145 mounted on the drive lever shaft 52 fixed to the housing. In this area is the height of the drive lever 11 in the transverse direction 50 enlarged relative to the cam-side end of the drive lever 11.
- the pressure arm 124 is integrally formed in the area of the lever axis bore 145. It is with its end facing the drive lever 11 in the depth direction 44 arranged and kinks vertically towards its free end, running approximately in the longitudinal direction 51.
- the free end of the pressure arm 124 is widened in the transverse direction 50 with respect to the rest of the area of the pressure arm 110.
- the surface of the free end of the free switch facing the Pressure arm 124 is approximately semicircular with the additional switch 7 facing Rounded convex side.
- Fig. 14 it can be seen that the circuit breaker housing from the housing bottom 49 effective housing shell and another as a housing cover 148 effective housing shell is composed.
- the Mounting plate 149 protrudes from the narrow side of both housing shells in Transverse direction 50.
- This protruding area contains the mounting plate 149 a mounting hole 150.
- the expansion of the mounting plate 149 is limited in the transverse direction 50 by a fastening plate edge 151.
- the fastening plate edge 151 extends in the depth direction 44 arranged. Their extent extends to about half of the extent of the circuit breaker 1 in the depth direction 44.
- the housing cover 148 contains a cover plate 152 arranged parallel to the plane spanned by the transverse direction 50 and the longitudinal direction 51. It has approximately a square outline shape. It can be removed from the housing cover 148 by fastening means, not shown here. These fastening means engage in four plate bores 153 arranged on the cover plate 152.
- the cover plate 152 covers the control electronics 2 fastened in the circuit breaker 1.
- the control electronics 2 are connected to the connection block 21 by connecting lines 16 (FIG. 15).
- the connection block 21 is arranged on the narrow side of the housing cover 148 facing away from the fastening plate 149. In the longitudinal direction 51, the connection block 21 protrudes from the housing cover 148.
- connection block 21 has a rectangular outline shape and contains ten connection sockets 20 on its surface.
- the two connection sockets 20 arranged side by side in the depth direction 44 are each electrically connected in parallel. Measuring or display devices are connected to the connecting sockets 20, for example.
- Several circuit breakers 1 can also be connected in parallel.
- connection block 21 is inserted in a recess in the housing cover 148.
- the cover plate 152 is extended in the longitudinal direction 51 in the region of the connection block 21 in order to completely cover the recess.
- the viewing window 119 is arranged on the narrow side of the housing cover 148 carrying the connection block 21. In the rectangular viewing window 119, it is visually indicated whether the circuit is closed or open. A cutout on the narrow side of the housing cover 148 in the region of the viewing window 119 is also covered by an extension of the cover plate 152 in the longitudinal direction 51.
- the cylindrical connecting bolts 70, 70 'extending in the longitudinal direction 51 penetrate the circuit breaker housing in the region of its narrow side facing away from the mounting plate 149.
- Both connecting bolts 70, 70 ' run approximately in the division plane between housing base 49 and housing cover 148.
- An electrical consumer is connected to the two connecting bolts 70, 70' via power lines.
- the connecting bolts 70, 70 ' are electrically shielded from one another by a partition 154 formed on the housing base 49.
- the partition 154 is T-shaped as seen in the longitudinal direction 51.
- the T crossbar is arranged in the transverse direction 50 and corresponds to the expansion of the housing base 49 in this direction.
- the T-crosspiece forms an extension of the housing base 49 in the longitudinal direction 51, the T-crosspiece being arranged offset in the depth direction 44 with respect to the housing base 49.
- the extension of the circuit breaker housing in the transverse direction 50 is divided into two halves by the vertical T-leg which protrudes vertically from the T-crosspiece.
- the vertical leg forms a plane arranged vertically on the circuit breaker housing. Its extent in the depth direction 44 is somewhat larger than the corresponding extent of the housing base 49.
- the single-pole circuit breaker 1 can be seen in FIG. 15, but with the cover plate 152 removed.
- a circuit board 155 is fitted in the inner region which can be closed by the cover plate 152. It is arranged parallel to the plane spanned by the transverse direction 50 and the longitudinal direction 51.
- the entire control electronics 2 are located on the circuit board 155.
- a part of the control electronics 2 is a hybrid circuit 156.
- the connections for the additional switch 7 and the auxiliary switch 6 are also located on the circuit board.
- Five connecting lines 16 connect the control electronics 2 to the connection sockets 20 of the Terminal block 21. In each case two connecting sockets 20 arranged side by side in the depth direction 44 are connected in parallel. This allows an electrical coupling of several circuit breakers 1.
- a plurality of circuit breakers 1 can also be coupled by direct connections of the circuit boards 155.
- the housing base 49 and the housing cover 148 are provided with openings, not shown, so that the conductor tracks relating to the same electrical signal on the circuit boards 155 of a plurality of circuit breakers 1 can be electrically connected in parallel via connecting wires. Except for a single connection block 21 for the connection, for example, of the external remote switch 8, the remaining connection blocks 21 are unnecessary in this case.
- the housing cover 148 four housing cover bores 157 are provided, which correspond to the plate bores 153 of the cover plate 152.
- a groove-like adjustment opening 158 is formed on the end face of the housing base 49 facing the housing cover 148 in the region of the electromagnetic switching drive 3. Through the adjustment opening 158, for example, a screwdriver can engage in the adjustment slot 34 of the shift rod 25 in order to adjust the drive lever 11 and the armature 23.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
- Selective Calling Equipment (AREA)
Description
Fernsteuerbare Schutzschalter hingegen können direkt am elektrischen Verbraucher angeordnet werden, so daß die Stromleitungen von der Stromquelle direkt zum elektrischen Verbraucher ohne den Umweg über das Schaltpult geführt sind. Die Ein- und Ausschaltsteuerung des Schutzschalters erfolgt dann durch einen im Schaltpult angeordneten externen Fernschalter. Der externe Fernschalter ist mit dem Schutzschalter nur durch Steuerleitungen verbunden.
- Fig. 1
- eine schematische Darstellung des Funktionsablaufs des Schutzschalters,
- Fig. 2
- ein Flußdiagramm des Funktionsablaufs des Schutzschalters,
- Fig. 3
- ein Blockschaltbild mit Darstellung der Kopplung von Mechanik und Steuerelektronik eines einpoligen Schutzschalters,
- Fig. 4
- eine Explosionsdarstellung des elektromagnetischen Schaltantriebs,
- Fig. 5
- eine Schnittdarstellung des elektromagnetischen Schaltantriebs im Montageendzustand,
- Fig. 6
- eine Draufsicht auf einen geöffneten, einpoligen Schutzschalter mit dem Antriebshebel in seiner Einschaltstellung und dem Kontakthebel in seiner Kontaktstellung,
- Fig. 7
- die Draufsicht auf den geöffneten, einpoligen Schutzschalter mit dem Antriebshebel in seiner Ausschaltstellung und dem Kontakthebel in seiner Ausschaltstellung,
- Fig. 8
- eine Draufsicht auf den geöffneten, einpoligen Schutzschalter mit dem Antriebshebel in seiner Einschaltstellung und dem Kontakthebel in seiner Ausschaltstellung,
- Fig. 9
- eine perspektivische Darstellung des Kontakthebels und Teilen des Stromkreises,
- Fig. 10
- eine perspektivische Darstellung der Überstrom-Überwachungseinrichtung,
- Fig. 11
- eine Explosionsdarstellung der in Fig. 10 dargestellten Überstrom-Überwachungseinrichtung,
- Fig. 12
- eine Rückansicht von Teilen der Überstrom-Überwachungseinrichtung nach Fig. 11,
- Fig. 13
- eine Explosionsdarstellung des Antriebshebels und der für die Schaltbewegungen des Antriebshebels notwendigen Bauteile,
- Fig. 14
- eine perspektivische Darstellung des einpoligen Schutzschalters,
- Fig. 15
- die perspektivische Darstellung des einpoligen Schutzschalters mit Blick auf die im Schutzschalter angeordnete Steuerelektronik.
Der Schaltantrieb 3 besteht im wesentlichen aus einem ringförmigen Dauermagneten 22, einem hohlzylindrischen Anker 23, der den Anker 23 in Axialrichtung 24 durchgreifenden Schaltstange 25 und zwei Gehäusehälften. Um die Magnetkraft zu vergrößern, werden hochwertige Dauermagnete 22 verwendet. Zu diesem Zweck besteht der Dauermagnet 22 z.B. aus einer Legierung aus Kobalt und seltenen Erden.
In den dem Topfdeckel 27 zugewandten Endbereich der Schaltstange 25 ist ein in Axialrichtung 24 verlaufender Justierschlitz 40 eingeformt. Quer zur Axialrichtung 24 verläuft der Justierschlitz 40 entsprechend dem Durchmesser der Schaltstange 25. Mittels des Justierschlitzes 40 kann die Schaltstange 25 zu Justierzwecken mechanisch einfach gedreht werden. Ebenfalls zur Übertragung eines Stell-Drehmoments dient die Abplattung 41.
Der dem Topfboden 26 zugewandte Endbereich der Schaltstange 25 ist als ein Stangengewinde 42 (Fig. 5)ausgebildet und mit einem Kopplungsglied 43 verschraubt. Das Kopplungsglied 43 enthält ebenso wie der Antriebshebel 11 (Fig. 6) eine Bohrung, die von einer in Tiefenrichtung 44 (Fig. 13) verlaufenden Kopplungsachse 45 durchsetzt sind. Der Aufbau des Antriebshebels 11 und der mit ihm verbundenen Teile ist unten näher erläutert (Fig. 13).
Da der Topfboden 26 und der Topfdeckel 27 aus magnetischem Werkstoff bestehen, ist der magnetische Kreis innerhalb des Schaltantriebs 3 geschlossen und nach außen vollständig magnetisch abgedichtet. Nach außen tritt kein Streufluß auf, wodurch der Schaltantrieb 3 den Anforderungen an die elektromagnetische Verträglichkeit (EMV) beim Einsatz des Schutzschalters 1 in Bordnetzen genügt.
Die Spulen 34,34' sind in Reihe geschaltet. Die stromdurchflossenen Spulen 34,34' erzeugen ebenfalls ein Magnetfeld. Dessen Richtung entspricht in Fig. 5 der Pfeilrichtung 48. In Fig. 5 sind die beiden Magnetflußrichtungen im Bereich des an dem Kegelstumpf 46 anliegenden Ankers 23 entgegengesetzt gerichtet. Im Bereich des Kegelstumpfes 46' sind diese beiden Magnetflußrichtungen gleichgerichtet. Die magnetische Kraft im Bereich des Kegelstumpfes 46' nimmt bei entsprechender Stromrichtung in den Spulen 34,34' zu, während sie im Bereich des Kegelstumpfes 46 abnimmt, bis der Anker 23 in Axialrichtung 24 auf den Kegelstumpf 46' zubewegt wird. Bei umgekehrter Stromrichtung in den Spulen 34,34' wird der Anker 23 in Axialrichtung 24 in die entgegengesetzte Richtung bewegt.
Das gehäusebodenseitige Ende des Anschlußbolzens 70 ist mit einem U-förmigen Stromzweig 81 formschlüssig und diesen Stromzweig 81 elektrisch kontaktierend verbunden. Der Stromzweig 81 ist durch den Anschlußbolzen 70 an einer Gehäuseinnenwand des Schutzschalters 1 befestigt. Die beiden U-Schenkel des Stromzweiges 81 sind parallel zur Querrichtung 50 angeordnet. Die beiden U-Schenkel sind unterschiedlich lang. Der kürzere U-Schenkel ist im Bereich seines Freiendes von einer zylindrischen Bolzenöffnung 82 zur formschlüssigen Verbindung mit dem Anschlußbolzen 70 durchbrochen. Am längeren U-Schenkel sind auf der dem Kontakthebel 12 zugewandten Oberfläche ein Hauptkontakt 83 und ein Vorlaufkontakt 84 befestigt. Hauptkontakt 83 und Vorlaufkontakt 84 sind plattenartig mit rechteckiger Umrißform ausgestaltet. Im Bereich des Kontaktendes 67 des Kontakthebels 12 sind ein ähnlich dem Hauptkontakt 83 und dem Vorlaufkontakt 84 ausgestalteter Hauptkontakt 83' und ein Vorlaufkontakt 84' angeordnet. Der Hauptkontakt 83' ist an der dem Stromzweig 81 zugewandten Oberfläche des Kontaktendes 67 angeformt. In Tiefenrichtung 44 übersteht der Hauptkontakt 83' den Kontakthebel 12. Der Vorlaufkontakt 84' ist am Freiende eines streifenartigen Federbügels 85 angeformt. Der Federbügel 85 ist mit seinem Befestigungsende 86 an dem Kontakthebel 12 befestigt. Zu diesem Zweck ist das Befestigungsende 86 mit einer rechteckförmigen Zapfenöffnung 87 versehen. Die Zapfenöffnung 87 ist von einem Nietzapfen 88 (Fig. 6) durchgriffen, wodurch die Verbindung zwischen Kontakthebel 12 und Federbügel 85 entsteht. Das Befestigungsende 86 ist gegenüber dem übrigen, in Querrichtung 50 verlaufenden Teil des Federbügels 85 etwa in Längsrichtung 51 auf den Antriebshebel 11 hin abgebogen. Der etwa in Querrichtung 50 verlaufende Teil des Federbügels 85 ist mit Ausnahme seines den Vorlaufkontakt 84' tragenden Freiendes 89 von einem Schlitz durchsetzt. In diesem Schlitz liegt der Kontakthebel 12 ein. Die Abmessungen des mit Blick in Längsrichtung 51 rechteckförmigen Schlitzes sind etwas größer dimensioniert als die Breite des Kontakthebels 12 in Tiefenrichtung 44 und die Länge des Kontakthebels 12 in Querrichtung 50.
Stromschiene 95 und Schienenverlängerung 94 sind einstückig aus einem Metallstreifen hergestellt. Der Metallstreifen ist jedoch in Tiefenrichtung 44 im Bereich der Stromschiene 95 nur etwa halb so breit wie im Bereich der Schienenverlängerung 94. Der die Stromschiene 95 bildende Metallstreifen weist an seiner in Montageendstellung dem Gehäusedeckel 148 abgewandten Oberfläche eine Mehrzahl von in Querrichtung 50 gesehen rechteckförmigen Ausbuchtungen bzw. Nuten auf.
Der Nebenschlußstrompfad 97 ist ebenfalls U-förmig gestaltet. Er ist in einer zum Bimetall 5 parallelen Ebene angeordnet. Der U-Grund des Nebenschlußstrompfades 97 übersteht die beiden Nebenschlußschenkel 103,103' in Tiefenrichtung 44. Seine Ausdehnung in diese Richtung ist etwas größer als die entsprechende Ausdehnung der Schienenverlängerung 94. Die beiden Nebenschlußschenkel 103,103' und die sich daran anschließenden Schenkelenden 104,104' entsprechen in Umrißform und Anordnung etwa den Bimetallschenkeln 99,99' sowie deren Kontaktenden 102,102'. Die Schenkelenden 104,104' sind jedoch um Kontaktstücke 105,105' verlängert. Das Schenkelende 104' ist mittels des Kontaktstückes 105' etwa in Längsrichtung 51 verlängert. Das Kontaktstück 105' ist jedoch vom Bimetall 5 weggerichtet abgebogen. In Querrichtung 50 gesehen ist das Kontaktstück 105' etwa quadratisch.
Das Schenkelende 104 weist im Vergleich zum zugehörigen Nebenschlußschenkel 103 in Tiefenrichtung 44 eine größere Ausdehnung auf. Daran schließt sich rechtwinklig abgebogen und auf die Stromschiene 95 gerichtet das Kontaktstück 105 an. In Tiefenrichtung 44 gesehen ist die Umrißform des Kontaktstückes 105 im wesentlichen rechteckig. Das Kontaktstück 105 ist in seinem mittleren Bereich von einer rechteckigen Kontaktöffnung 106 in Tiefenrichtung 44 durchbrochen (Fig. 12). Die in Montageendstellung dem Gehäusedeckel 148 abgewandte Oberfläche der Stromschiene 95 enthält, wie bereits in Fig. 9 erwähnt, eine Mehrzahl von Nuten und Ausbuchtungen. In dem der Schienenverlängerung 94 abgewandten Bereich der Stromschiene 95 ist die sich in Tiefenrichtung 44 erstreckende Kontaktausbuchtung 107 angeformt. Seine Umrißform ist an die Umrißform der Kontaktöffnung 106 derart angepaßt, daß im Montageendzustand eine formschlüssige Verbindung zwischen Stromschiene 95 und Kontäktstück 105 hergestellt ist.
Das Schenkelende 104 ist in seinem dem Schenkelende 104' zugewandten Bereich von einer Schraubenöffnung 108 in Querrichtung 50 durchbrochen. Seine Umrißform entspricht etwa der eines Halbkreises mit seiner zum Schenkelende 104' zugewandten Konkavseite. Die Schraubenöffnung 108 ermöglicht, daß im Montageendzustand eine Justierschraube 109 mit ihrem Isolierstift 110 das Schenkelende 104 berührungslos durchgreifen und auf das Kontaktende 102 des Bimetalls 5 einwirken kann. Der zylindrische Isolierstift 110 ist zentral an der dem Bimetall 5 zugewandten Stirnseite der Justierschraube 109 angeformt. Die Wirkrichtung der Justierschraube 109 entspricht der Querrichtung 50. Die Justierschraube 109 ist in einer Gewindebohrung 111 gelagert. Die Gewindebohrung 111 durchbricht einen stromlosen Zweig 112 der Trägerkonsole 98 in Querrichtung 50. In dieser Richtung hat der Zweig 112 die Umrißform einer rechteckigen Platte. Im Bereich seiner dem Nebenschlußschenkel 103 zugewandten Eckkante und dazu diagonal gegenüberliegenden Eckkante ist der Zweig 112 jeweils rechteckförmig ausgespart.
Der Zweig 112 und die Nebenschlußkontaktfläche 113 sind über ein Bodenstück 115 miteinander verbunden. Das Bodenstück 115 ist in Längsrichtung 51 rechteckig. Das Bodenstück 115 ist der Teil der Trägerkonsole 98, an dem der Anschlußbolzen 70' in Montageendstellung elektrisch kontaktiert ist. Zu diesem Zweck ist das Bodenstück 115 von der zylindrischen Bolzenöffnung 82' in Längsrichtung 51 durchbrochen.
Der Nebenschlußschenkel 103 und der Bimetallschenkel 99 wirken wie zwei parallele, vom Strom gleichsinnig durchflossene Leiter. Solche Leiter ziehen sich aufgrund der elektrodynamischen Kraftwirkung an. Die elektrodynamisch bedingte Auslenkbewegung des Bimetalls 5 unterstützt dessen thermische Auslenkbewegung insbesondere bei sehr großen Überströmen. Dadurch ist die Auslöseempfindlichkeit des Schutzschalters vergrößert und die Auslösezeit verringert.
Der Kontakthebel 12 wird am Kontakthebellager 69 geführt. Die Kontaktdruckfeder 72 wirkt mit ihrer Federkraft in Längsrichtung 51 mittels der Druckplatte 73 auf die Kontakthebelnoppe 71 des Kontakthebels 12 ein. Dadurch wird der Kontakthebel 12 mit dem Schwenklager 65 als Drehachse im Uhrzeigersinn gedreht. Gleichzeitig drückt das Kontakthebelende 64 des Kniehebels den Kontakthebel 12 mit dem Kontakthebellager 69 als Drehachse im Uhrzeigersinn in Richtung der Anschlußbolzen 70,70'. Dadurch wird an den Hauptkontakten 83,83' sowie an den Vorlaufkontakten 84,84' ein ausreichender Kontaktdruck erzeugt. Die Stellung des Anzeigehebels 76 ist von der Stellung der Kontaktdruckfeder 72 abhängig. Beide Baueile sind über den Drehpunkt 77 miteinander verbunden. Bei einer Bewegung der Kontaktdruckfeder 72 in Längsrichtung 51 wird der Anzeigearm 79 um den Zapfen 78 als Drehachse gedreht. Je nach Stellung der Kontaktdruckfeder 72 und damit des Kontakthebels 12 ist in einem Sichtfenster 119 ein bestimmter Teilbereich der Anzeigefläche 80 erkennbar. Im Sichtfenster 119 wird demnach angezeigt, ob der Stromkreis geöffnet oder geschlossen ist.
Um die Haltekraft des Schaltantriebs 3 zu verbessern, ist zusätzlich eine Drehfeder 120 vorgesehen. Sie ist an dem gehäusefesten und in Tiefenrichtung 44 verlaufenden Bolzen 121 fixiert. Der eine Federschenkel ist an einer Nocke 122 des Antriebshebels 11 abgestützt. Die Nocke 122 ist am dem Verklinkungshebel 13 abgewandten Ende des Antriebshebels 11 angeformt. Der zweite Federschenkel liegt an einem ebenfalls gehäusefesten und in Tiefenrichtung 44 verlaufenden Gehäusezapfen 123 an. Die Kraftwirkung der Drehfeder 120 ist der Magnetkraft des Schaltantriebs 3 in der Einschaltstellung des Antriebshebels 11 gleichgerichtet. Während der Überführung des Kontakthebels 12 in seine Ausschaltstellung (Fig. 7) muß die Magnetkraft dem Druck der Drehfeder 120 entgegenwirken. In diesem Fall ist aber die vom Schaltschloß 4 geforderte Kraft gering. In Fig. 6 liegt die Verklinkungsplatte 54 in der Verklinkungskerbe 55 ein. Dadurch sind Antriebshebel 11 und Verklinkungshebel 13 miteinander verklinkt. Dies gewährleistet eine stabile Streckstellung des Kniehebels und ein zuverlässiges Verbleiben des Kontakthebels 12 in seiner Kontaktstellung.
Die Überführung des Kontakthebels 12 in seine Ausschaltstellung bei der Freiauslösung durch das Bimetall 5 nach dem Entklinken von Antriebshebel 11 und Verklinkungshebel 13 entspricht den Erläuterungen in Fig. 7.
Zu Beginn oder während des Betriebes des Schutzschalters 1 auftretende Fertigungstoleranzen zwischen Schaltschloß 4 und Schaltantrieb 3 können durch die Schaltstange 25 ausgeglichen werden. Zu diesem Zweck greift z.B. ein Schraubendreher in den Justierschlitz 34 der Schaltstange 25 ein.
Schaltstange 25, Kopplungsglied 43, Zwischenhebel 136, Ausgleichsfeder 143, Drehfeder 120 und Antriebshebel 11 wirken derart zusammen, daß das Spiel zwischen Antriebshebel 11 und Verklinkungshebel 13 ausgeglichen wird, um ein sicheres Ver- und Entklinken dieser beiden Bauteile zu gewährleisten. Außerdem kann durch Drehen der Schaltstange 25 der Luftspalt zwischen dem Anker 23 und dem Kegelstumpf 46 bzw. dem Kegelstumpf 46' konstant kleingehalten werden, um eine konstante Magnetkraft zu erzielen.
Die Abdeckplatte 152 deckt die im Schutzschalter 1 befestigte Steuerelektronik 2 ab. Die Steuerelektronik 2 ist durch Anschlußleitungen 16 (Fig. 15) mit dem Anschlußblock 21 verbunden. Der Anschlußblock 21 ist an der der Befestigungsplatte 149 abgewandten Schmalseite des Gehäusedeckels 148 angeordnet. In Längsrichtung 51 übersteht der Anschlußblock 21 den Gehäusedeckel 148. Der Anschlußblock 21 hat eine rechteckige Umrißform und enthält an seiner Oberfläche zehn Anschlußbuchsen 20. Die beiden in Tiefenrichtung 44 nebeneinander angeordneten Anschlußbuchsen 20 sind jeweils elektrisch parallel geschaltet. An die Anschlußbuchsen 20 werden z.B. Meß- oder Anzeigeeinrichtungen angeschlossen. Auch mehrere Schutzschalter 1 können parallel geschaltet werden.
An der den Anschlußblock 21 tragenden Schmalseite des Gehäusedeckels 148 ist das Sichtfenster 119 angeordnet. Im rechteckförmigen Sichtfenster 119 wird optisch angezeigt, ob der Stromkreis geschlossen oder geöffnet ist. Eine Aussparung der Schmalseite des Gehäusedeckels 148 im Bereich des Sichtfensters 119 ist ebenfalls durch eine Verlängerung der Abdeckplatte 152 in Längsrichtung 51 abgedeckt.
Die zylindrischen, sich in Längsrichtung 51 erstreckenden, Anschlußbolzen 70,70' durchgreifen das Schutzschaltergehäuse im Bereich seiner der Befestigungsplatte 149 abgewandten Schmalseite. Beide Anschlußbolzen 70,70' verlaufen etwa in der Teilungsebene zwischen Gehäuseboden 49 und Gehäusedeckel 148. An die beiden Anschlußbolzen 70,70' wird über Stromleitungen ein elektrischer Verbraucher angeschlossen. Die Anschlußbolzen 70,70' sind voneinander durch eine am Gehäuseboden 49 angeformte Trennwand 154 elektrisch abgeschirmt. Die Trennwand 154 ist in Längsrichtung 51 gesehen T-förmig gestaltet. Der T-Quersteg ist in Querrichtung 50 angeordnet und entspricht der Ausdehnung des Gehäusebodens 49 in dieser Richtung. Der T-Quersteg bildet in Längsrichtung 51 eine Verlängerung des Gehäusebodens 49, wobei der T-Quersteg gegenüber dem Gehäuseboden 49 in Tiefenrichtung 44 versetzt angeordnet ist. Die Ausdehnung des Schutzschaltergehäuses in Querrichtung 50 ist durch den vom T-Quersteg senkrecht abstehenden T-Vertikalschenkel in zwei Hälften geteilt. Der Vertikalschenkel bildet eine lotrecht am Schutzschaltergehäuse angeordnete Ebene. Dessen Ausdehnung in Tiefenrichtung 44 ist etwas größer als die entsprechende Ausdehnung des Gehäusebodens 49.
Die Koppelung mehrerer Schutzschalter 1 kann aber auch durch direkte Verbindungen der Leiterplatten 155 erfolgen. Zu diesem Zweck sind Gehäuseboden 49 und Gehäusedeckel 148 mit nicht dargestellten Öffnungen versehen, damit die das gleiche elektrische Signal betreffenden Leiterbahnen auf den Leiterplatten 155 mehrerer Schutzschalter 1 über Anschlußdrähte elektrisch parallel geschaltet werden können.
Bis auf einen einzigen Anschlußblock 21 für den Anschluß z.B. des externen Fernschalters 8 sind die übrigen Anschlußblöcke 21 in diesem Fall überflüssig. Im Gehäusedeckel 148 sind vier Gehäusedeckelbohrungen 157 vorgesehen, die mit den Plattenbohrungen 153 der Abdeckplatte 152 korrespondieren. An der dem Gehäusedeckel 148 zugewandten Stirnseite des Gehäusebodens 49 ist im Bereich des elektromagnetischen Schaltantriebs 3 eine nutartige Justieröffnung 158 eingeformt. Durch die Justieröffnung 158 kann z.B. ein Schraubendreher in den Justierschlitz 34 der Schaltstange 25 eingreifen, um den Antriebshebel 11 und den Anker 23 zu justieren.
- 1
- Schutzschalter
- 2
- Steuerelektronik
- 3
- Schaltantrieb
- 4
- Schaltschloß
- 5
- Bimetall
- 6
- Hilfsschalter
- 7
- Zusatzschalter
- 8
- Femschalter
- 9
- Spannunsbegrenzung
- 10
- Stromversorgung
- 11
- Antriebshebel
- 12
- Kontakthebel
- 13
- Verklinkungshebel
- 14
- Phasenanschnittsteuerung
- 15'
- Eingang
- 16
- Anschlußleitung
- 17
- Impulsgeber
- 18
- Transistorvollbrücke
- 19
- Statusmelder
- 20
- Anschlußbuchse
- 21
- Anschlußblock
- 22
- Dauermagnet
- 23
- Anker
- 24
- Axialrichtung
- 25
- Schaltstange
- 26
- Topfboden
- 27
- Topfdeckel
- 28
- Außenfläche
- 29,29'
- Stangenführungsbohrung
- 30,30'
- Utzenbohrung
- 31,31'
- Utzenbohrung
- 32,32'
- Anschlußlitze
- 33,33'
- Anschlußlitze
- 34,34'
- Spule
- 35,35'
- Isolationselement
- 36,36'
- Isolationselement
- 37
- Fixierstift
- 38
- Nut
- 39
- Stiftbohrung
- 40
- Justierschlitz
- 41
- Abplattung
- 42
- Stangengewinde
- 43
- Kopplungsglied
- 44
- Tiefenrichtung
- 45
- Kopplungsachse
- 46,46'
- Kegelstumpf
- 47
- Pfeilrichtung
- 48
- Pfeilrichtung
- 49
- Gehäuseboden
- 50
- Querrichtung
- 51
- Längsrichtung
- 52
- Antriebshebelachse
- 53
- Verklinkungsende
- 54
- Verklinkungsplatte
- 55
- Verklinkungskerbe
- 56
- Kniegelenkachse
- 57
- Verklinkungsarm
- 58
- Schaltarm
- 59
- Hebel
- 60
- Hebel
- 61
- Hebelachse
- 62
- Begrenzungsnase
- 63
- Nasenanschlag
- 64
- Kontakthebelende
- 65
- Schwenklager
- 66
- Lagerende
- 67
- Kontaktende
- 68
- Längsschlitz
- 69
- Kontakhebellager
- 70,70'
- Anschlußbolzen
- 71
- Kontakthebelnoppe
- 72
- Kontaktdruckfeder
- 73
- Druckplatte
- 74
- Federgehäuse
- 75
- Wange
- 76
- Anzeigehebel
- 77
- Drehpunkt
- 78
- Zapfen
- 79
- Anzeigerarm
- 80
- Anzeigefläche
- 81
- Stromzweig
- 82,82'
- Bolzenöffnung
- 83,83'
- Hauptkontakt
- 84,84'
- Vorlaufkontakt
- 85
- Federbügel
- 86
- Befestigungsende
- 87
- Zapfenöffnung
- 88
- Nietzapfen
- 89
- Freiende
- 90
- Bügelverlängerung
- 91,91'
- Federwange
- 92
- Lagerbohrung
- 93
- Litze
- 94
- Schienenverlängerung
- 95
- Stromschiene
- 96
- Schlenenschlitz
- 97
- Nebenschlußstrompfad
- 98
- Trägerkonsole
- 99,99'
- Bimetallschenkel
- 100
- Bewegungsende
- 101
- Blmetallvorsprung
- 102
- Kontaktende
- 102'
- Kontaktende
- 103
- Nebenschlußschenkel
- 103'
- Nebenschlußschenkel
- 104
- Schenkelende
- 104'
- Schenkelende
- 105
- Kontaktstück
- 105'
- Kontaktstück
- 106
- Kontaktöffnung
- 107
- Kontaktausbuchtung
- 108
- Schraubenöffnung
- 109
- Justierschdraube
- 110
- Isolierstift
- 111
- Gewindebohrung
- 112
- Zweig
- 113
- Nebenschlußkontaktfäche
- 114
- Bimetallkontaktfläche
- 115
- Bodenstück
- 116
- Schienenende
- 117
- Auslenkseite
- 118
- Rückseite
- 119
- Sichtfenster
- 120
- Drehfeder
- 121
- Bolzen
- 122
- Nocke
- 123
- Gehäusezapfen
- 124
- Druckarm
- 125
- Schaltknopf
- 126
- Schieber
- 127
- Antriebsarm
- 128
- Winkelhebel
- 129
- Entklinkungsarm
- 130
- Winkelhebelachse
- 131
- Innengewinde
- 132
- Basisplatte
- 133
- Kopplungsbohrung
- 133'
- Kopplungsbohrung
- 134
- Kopplungsachsenöffnung
- 135
- Zwischenhebelbohrung
- 135'
- Zwischenhebelbohrung
- 136
- Zwischenhebel
- 137
- Flankierungsteil
- 137'
- Flankierungsteil
- 138
- Lagerbohrung
- 139
- Zwischenhebelachse
- 140
- Zwischenhebellager
- 141
- Basisteil
- 142
- Schenkelbohrung
- 143
- Ausgleichsfeder
- 144
- Aussparung
- 145
- Hebelachsenbohrung
- 146
- Hebelnut
- 147
- Hebelbohrung
- 148
- Gehäusedeckel
- 149
- Befestigungsplatte
- 150
- Befestigungsbohrung
- 151
- Befestigungsplattenkante
- 152
- Abdeckplatte
- 153
- Plattenbohrung
- 154
- Trennwand
- 155
- Leiterplatte
- 156
- Hybridschaltung
- 157
- Gehäusedeckelbohrung
- 158
- Justieröffnung
- 159
- Paralleleingang
- 160
- Ausgang
- 161
- Parallalausgang
Claims (29)
- Mittels eines externen Fernschalters (8) über eine Steuerelektronik (2) fernsteuerbarer Schutzschalter (1),dadurch gekennzeichnet,mit einem von der Steuerelektronik (2) gesteuerten elektromagnetischen Schaltantrieb (3,11), welcher den Stromkreis über ein zwischen Öffnungs- und Schließstellung bewegliches Schaltschloß (4,12,13) schaltet undmit einem bei Überstrom durch Bimetallauslösung betätigten Hilfsschalter (6) zur Ausschaltung des Fernschalters (8) über die Steuerelektronik (2)daß der Schaltantrieb (3,11) zum Schalten des Stromkreises mit dem Schaltschloß (4,12,13) verklinkt ist,daß das Schaltschloß (4,12,13) durch Bimetallauslösung vom Schaltantrieb (3,11) entklinkt und geöffnet wird und dadurch den Stromkreis unterbricht unddaß der bei Bimetallauslösung betätigte Hilfsschalter (6) über die Steuerelektronik automatisch die Wiederverklinkung des Schaltantriebs (3,11) mit dem geöffneten Schaltschloß (4,12,13) bewirkt.
- Schalter nach Anspruch 1,
dadurch gekennzeichnet,
daß die Ausschaltung des Fernschalters (8) die Überführung des Schaltantriebs (3, 11) in seine Ausschaltstellung auslöst. - Schalter nach Anspruch 2,
dadurch gekennzeichnet,
daß die nach-einer Bimetallauslösung erfolgende Überführung des Schaltantriebs (3, 11) in eine Ausschaltstellung dessen Wiederverklinkung mit dem Schaltschloß (4, 12, 13) bewirkt. - Schalter nach einem der Ansprüche 1 bis 3,
gekennzeichnet durch
einen die Schaltstellung des Schaltantriebs (3,11) signalisierenden Zusatzschalter (7). - Schalter nach Anspruch 4,
dadurch gekennzeichnet,
daß der Zusatzschalter (7) durch Signalisierung der Ausschaltstellung des Schaltantriebs (3,11) dessen Wiedereinschaltung freigibt. - Schalter nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß das geöffnete und dadurch den Stromkreis unterbrechende Schaltschloß (4,12,13) den Hilfsschalter (6) schaltungsmäßig beaufschlagt. - Schalter nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
daß der in der Ausschaltstellung befindliche Schaltantrieb (3,11) den Zusatzschalter (7) schaltungsmäßig beaufschlagt. - Schalter nach einem der vorhergehenden Ansprüche,
gekennzeichnet durch
einen elektrisch parallel zum Hilfsschalter (6) geschalteten Sensor zur Freiauslösung des Schutzschalters (1). - Schalter nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Steuerelektronik (2) im wesentlichen aus einer Hybridschaltung (156) besteht. - Schalter nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Steuerelektronik (2) über Anschlußleitungen (16) mit einem am Schaltergehäuse befestigten Anschlußblock (21) verbunden ist. - Schalter nach Anspruch 10,
dadurch gekennzeichnet,
daß Anschlußleitungen (16) den Anschlußblock (21) mit einem Statusmelder (19) verbinden. - Schalter nach Anspruch 11,
dadurch gekennzeichnet,
daß der Statusmelder (19) ein Mikroschalter ist und gemeinsam mit dem Hilfsschalter (6) vom Schaltschloß (4, 12, 13) geschaltet wird. - Schalter nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,daß der Anschlußblock (21) mit den Anschlußleitungen (16) verbundene Anschlußbuchsen (20) enthält unddaß über die Anschlußbuchsen (20)der Fernschalter (8) an einen Eingang (15) und an einen Ausgang (160) der Steuerelektronik (2) undeine externe Anzeigevorrichtung an den Statusmelder (19) anschließbar sind. - Schalter nach Anspruch 13,
dadurch gekennzeichnet,
daß die dem Eingang (15) und die dem Ausgang (160) zugeordneten Anschlußbuchsen (20) jeweils mit den gleichen Anschlußbuchsen (20) mindestens eines weiteren einpoligen Schutzschalters (1) elektrisch verbunden sind, um gemeinsam einen mehrpoligen Schutzschalter zu bilden. - Schalter nach Anspruch 13 oder 14
dadurch gekennzeichnet,
daß die dem Eingang (15) und dem Ausgang (160) auf einer die Steuerelektronik (2) tragenden Leiterplatte (155) zugeordneten Kontaktstellen mehrerer einpoliger Schutzschalter (1) direkt mittels die Schaltergehäuse durchquerende Verbindungsleitungen elektrisch verbunden sind. - Schalter nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß am Schaltergehäuse eine Trennwand (154) zwischen zwei aus dem Schaltergehäuse hinausstehenden und als Anschlußenden des Stromkreises wirksamen Anschlußbolzen (70,70') zu deren gegenseitiger elektrischer Abschirmung angeordnet ist und mit seitlichen Verlängerungen auch die Anschlußenden benachbarter, insbesondere zu einem mehrpoligen Schutzschalter gekoppelter Schutzschalter (1) voneinander elektrisch isoliert. - Schalter nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß mindestens ein einpoliger Schutzschalter (1) einen Schaltantrieb (3) enthält, welcher durch mechanische Kopplung über eine gemeinsame Achse auf die Schaltschlösser (4) sämtlicher einpoligen Schutzschalter (1) einwirkt. - Schalter nach einem der vorhergehenden Ansprüche,
gekennzeichnet durcheinen den Stromkreis schaltenden, schwenkbaren Kontakthebel (12) und einen die Schwenkbewegung des Kontakthebels (12) bewirkenden, einen Bestandteil des Schaltschlosses (4) bildenden Kniehebel (59,60), dessen eines Kniehebelende am Schaltergehäuse und dessen anderes Kniehebelende (64) am Kontakthebel (12) angelenkt ist undeinen am Kniegelenk (56) des Kniehebels (59,60) angelenkten Verklinkungshebel (13), der mit dem Schaltantrieb (3) verklinkbar ist und das Kniegelenk (56) zwischen der das Schließen des Stromkreises bewirkenden Strecklage und der das Unterbrechen des Stromkreises bewirkenden Knicklage des Kniehebels (59,60) verschiebt. - Schalter nach Anspruch 18,
dadurch gekennzeichnet,daß der Kontakthebel (12) und das am Kontakthebel (12) angelenkte Kniehebelende (64) von einer Kontaktdruckfeder (72) druckbeaufschlagt sind unddaß der Verklinkungshebel (13) gegen den Kontaktfederdruck verschiebbar ist. - Schalter nach Anspruch 18 oder 19,
dadurch gekennzeichnet,
daß der Verklinkungshebel (13) bei unterbrochenem Stromkreis den Hilfsschalter (6) schaltungsmäßig beaufschlagt. - Schalter nach einem der Ansprüche 18 bis 20,
dadurch gekennzeichnet,
daß der Verklinkungshebel (13) zweiarmig ist und mit seinem dem Verklinkungsarm (57) gegenüberliegenden Schaltarm (58) den Hilfsschalter (6) beaufschlagt. - Schalter nach Anspruch 21,
dadurch gekennzeichnet,
daß das Ende des Schaltarmes (58) als Anschlagstück ausgebildet ist. - Schalter nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß das Bimetall (5) bei Überstrom den Verklinkungshebel (13) zu dessen Schwenkung um die Kniegelenkachse (56) beaufschlagt und dadurch den Verklinkungsarm (57) vom Schaltantrieb (3) entklinkt. - Schalter nach einem der vorhergehenden Ansprüche,
gekennzeichnet durch
einen elektromagnetischen Schaltantrieb (3) mit einer Schaltstange (25), welche an einen mit dem Verklinkungsarm (57) verklinkbaren Antriebshebel (11) angelenkt ist und zwischen der Einschalt- und Ausschaltstellung des Schaltantriebs (3) in einer Axialrichtung (24) verschiebbar ist. - Schalter nach Anspruch 24,
dadurch gekennzeichnet,
daß der Antriebshebel (11) ein am Schaltergehäuse drehbar um eine parallel zur Kniegelenkachse (56) angeordnete Antriebshebelachse (52) gelagerter zweiarmiger Schwenkhebel ist,an dessen Antriebsende die Schaltstange (25) angelenkt ist unddessen gegenüberliegendes Ende als Verklinkungsende (53) mit dem Verklinkungsarm (57) verklinkbar ist. - Schalter nach Anspruch 25,
dadurch gekennzeichnet,
daß der verklinkte Antriebshebel (11) mit seinem Verklinkungsende (53) nach Art etwa der Schneide eines Schneidenlagers in einer Verklinkungskerbe (55) des Verklinkungsarmes (57) einliegt. - Schalter nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß der Antriebshebel (11) bei in der Ausschaltstellung befindlichem Schaltantrieb (3) mit einem quer zur Antriebshebelachse (52) seitlich von den Hebelarmen abstehenden Ausleger (124) den Zusatzschalter (7) schaltungsmäßig beaufschlagt. - Schalter nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Schaltstellung des Schaltschlosses (4) durch ein am Schaltergehäuse angeordnetes Sichtfenster (119) angezeigt wird, dessen Sichtebene vom Gehäuseinnenraum her durch einen Anzeigehebel (76) abgedeckt ist, welcher am Schaltergehäuse drehbar zwischen zwei vom Druck der Kontaktdruckfeder (72) abhängigen Drehstellungen gelagert ist. - Schalter nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,daß Schaltstange (25), Verklinkungshebel (13) und Kontakthebel (12) etwa parallel zueinander angeordnet sind,daß Antriebshebel (11) und Kniehebel in Schwenkrichtung des Kontakthebels (12) und etwa rechtwinklig zu den parallelen Teilen verlaufen unddaß die von den vorgenannten Teilen aufgespannte Ebene deren Bewegungsebene ist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9321529U DE9321529U1 (de) | 1992-03-31 | 1993-03-24 | Fernsteuerbarer Schutzschalter |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9204342 | 1992-03-31 | ||
| DE9204342U | 1992-03-31 | ||
| DE9208010U | 1992-06-15 | ||
| DE9208010U DE9208010U1 (de) | 1992-06-15 | 1992-06-15 | Fernsteuerbarer Schutzschalter |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0563774A2 EP0563774A2 (de) | 1993-10-06 |
| EP0563774A3 EP0563774A3 (en) | 1994-11-23 |
| EP0563774B1 true EP0563774B1 (de) | 1999-05-19 |
Family
ID=25959330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93104852A Expired - Lifetime EP0563774B1 (de) | 1992-03-31 | 1993-03-24 | Fernsteuerbarer Schutzschalter |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5381121A (de) |
| EP (1) | EP0563774B1 (de) |
| DE (1) | DE59309583D1 (de) |
| ES (1) | ES2133339T3 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7378761B2 (en) | 2002-08-02 | 2008-05-27 | Protectelec Pty Ltd | Control circuit and a method for electrically connecting a load to a power source |
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| WO1998040898A2 (en) * | 1997-03-08 | 1998-09-17 | Blp Components Limited | Two pole contactor |
| US6441708B1 (en) * | 1999-11-05 | 2002-08-27 | Siemens Energy & Automation, Inc. | Shunt trip device for a molded case circuit breaker |
| DE19960755A1 (de) | 1999-12-16 | 2001-07-05 | Ellenberger & Poensgen | Simulationsschalter |
| FR2806524B1 (fr) | 2000-03-17 | 2002-06-14 | Ge Power Controls France | Commande motorisee pour disjoncteur |
| FR2817078B1 (fr) * | 2000-11-21 | 2003-02-14 | Hager Electro | Dispositif de commande a distance pour appareillage modulaire de protection |
| US7324876B2 (en) | 2001-07-10 | 2008-01-29 | Yingco Electronic Inc. | System for remotely controlling energy distribution at local sites |
| US6636141B2 (en) | 2001-07-10 | 2003-10-21 | Yingco Electronic Inc. | Controllable electronic switch |
| US7265652B2 (en) * | 2001-07-10 | 2007-09-04 | Yingco Electronic Inc. | Controllable electronic switch |
| US6545234B1 (en) | 2001-12-18 | 2003-04-08 | Abb Technology | Circuit breaker with mechanical interlock |
| DE10211534A1 (de) * | 2002-03-15 | 2003-10-16 | Siemens Ag | Auslösevorrichtung für ein Schaltgerät |
| US6768402B2 (en) | 2002-04-15 | 2004-07-27 | Eaton Corporation | Externally controllable circuit breaker |
| DE102004019177A1 (de) * | 2004-04-16 | 2005-11-03 | Abb Patent Gmbh | Thermische Auslöseeinrichtung |
| US7692112B2 (en) * | 2006-01-10 | 2010-04-06 | Siemens Industry, Inc. | Control module |
| US7319373B2 (en) * | 2006-01-23 | 2008-01-15 | Eaton Corporation | Electrical switching apparatus and terminal housing therefor |
| US7570140B2 (en) * | 2006-03-02 | 2009-08-04 | Eaton Corporation | Magnetic trip mechanism including a plunger member engaging a support structure, and circuit breaker including the same |
| DE102006033355A1 (de) * | 2006-07-19 | 2008-01-24 | Euchner Gmbh + Co. Kg | Vorrichtung zum Überwachen des Zustandes einer Schutzeinrichtung einer Maschine |
| US7812695B2 (en) * | 2006-11-09 | 2010-10-12 | Siemens Industry, Inc. | Tie bar for three pole switching device |
| EP1975960A1 (de) * | 2007-03-30 | 2008-10-01 | Abb Research Ltd. | Bistabiler magnetischer Betätiger, elektronischer Steuerkreis und Verfahren zum Betreiben eines solchen Betätigers. |
| DE102009012650A1 (de) * | 2009-03-11 | 2010-09-16 | Siemens Aktiengesellschaft | Energieverteilungssystem |
| EP2254140B1 (de) * | 2009-05-19 | 2013-11-27 | Abb Ag | Von der Wärme unabhängige Überstromauslösevorrichtung |
| US8088633B2 (en) | 2009-12-02 | 2012-01-03 | Ultratech, Inc. | Optical alignment methods for forming LEDs having a rough surface |
| EP2431991B1 (de) * | 2010-09-20 | 2013-03-06 | Sécheron SA | Freigabemechanismus für Schaltungsunterbrechungsvorrichtung |
| DE102011008833B4 (de) * | 2011-01-19 | 2013-03-07 | Abb Ag | Überstromauslöser und Installationsschaltgerät mit Überstromauslöser |
| US8803640B2 (en) * | 2012-08-29 | 2014-08-12 | Carling Technologies, Inc. | Remote operated circuit breaker |
| US8872606B1 (en) | 2013-04-23 | 2014-10-28 | Eaton Corporation | Bimetal and magnetic armature providing an arc splatter resistant offset therebetween, and circuit breaker including the same |
| CN106663554B (zh) * | 2014-05-14 | 2018-06-01 | Abb瑞士股份有限公司 | 以汤姆逊线圈为基础的致动器 |
| ES2714102T3 (es) * | 2014-05-19 | 2019-05-27 | Abb Schweiz Ag | Dispositivo de aparamenta eléctrica de limitación de alta velocidad |
| US10153119B2 (en) | 2015-09-28 | 2018-12-11 | Eaton Intelligent Power Limited | Articulated clinch joint for molded case circuit breaker |
| CN112821557A (zh) * | 2021-01-19 | 2021-05-18 | 沈阳工业大学 | 一种智能高压断路器双定子电机操动机构控制系统及方法 |
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| DE643205C (de) * | 1937-03-31 | Aeg | Mehrpoliger UEberstromkniehebelschalter | |
| FR657824A (fr) * | 1927-07-20 | 1929-05-28 | Schiele & Bruchsaler Ind | Dispositif de déclenchement pour disjoncteurs électriques |
| DE518833C (de) * | 1929-12-25 | 1931-02-20 | Ernst Curt Loesche | Vorrichtung zum Abscheiden von Eisen und anderen Fremdstoffen fuer Zerkleinerungsvorrichtungen |
| BE402791A (de) * | 1933-04-25 | |||
| CH245200A (de) * | 1945-07-27 | 1946-10-31 | Bbc Brown Boveri & Cie | Kombinierter thermischer und dynamischer Auslöser. |
| US3211955A (en) * | 1960-03-29 | 1965-10-12 | Westinghouse Electric Corp | Circuit interrupting device |
| US3521127A (en) * | 1967-10-13 | 1970-07-21 | Airpax Electronics | Remotely operated circuit breaker |
| US3601562A (en) * | 1969-09-02 | 1971-08-24 | Ite Imperial Corp | Defeater lock for electrically operated circuit breaker |
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| DE8904063U1 (de) * | 1989-04-03 | 1989-06-22 | Ellenberger & Poensgen Gmbh, 8503 Altdorf | Druckknopfbetätigter Überstromschutzschalter |
-
1993
- 1993-03-24 EP EP93104852A patent/EP0563774B1/de not_active Expired - Lifetime
- 1993-03-24 ES ES93104852T patent/ES2133339T3/es not_active Expired - Lifetime
- 1993-03-24 DE DE59309583T patent/DE59309583D1/de not_active Expired - Lifetime
- 1993-03-31 US US08/041,216 patent/US5381121A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7378761B2 (en) | 2002-08-02 | 2008-05-27 | Protectelec Pty Ltd | Control circuit and a method for electrically connecting a load to a power source |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0563774A3 (en) | 1994-11-23 |
| DE59309583D1 (de) | 1999-06-24 |
| US5381121A (en) | 1995-01-10 |
| ES2133339T3 (es) | 1999-09-16 |
| EP0563774A2 (de) | 1993-10-06 |
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