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Patent Searching and Data


Matches 401 - 450 out of 4,670

Document Document Title
WO/1994/022158A1
A safety switch has an LS (line protection) and an FI (fault current protection) section. The switch lock of the LS section has a catch support lockable by a catch which, for tripping (in the event of an overcurrent), works with a bimeta...  
WO/1994/014178A1
A computer (11) having a hard disk drive includes a battery voltage monitor (U1) which establishes a shut down condition of the computer (11) if the supply voltage falls below a chosen level VL. Upon start up of the hard disk drive motor...  
WO/1994/008348A1
Described is a latch-locked vacuum-type circuit breaker (1) with two independently actuated magnets (12, 15). While the first magnet (12) is mounted, together with a locking lever (13), inside the drive-unit housing (2), the second magne...  
WO/1994/000862A1
A trip energy monitor for microprocessor-based trip units includes a Zener diode (CR1), a current-limiting resistor (R1), and an inverting buffer (INV1). The trip energy monitor provides a reference logic signal which is read by a microp...  
WO/1993/022785A1
An improved miniature circuit breaker (1, 2) is adapted to improved automatic assembly of all components thereof. Key components of the breaker are individually and collectively designed to be susceptible to total Z-axis assembly. In par...  
WO/1993/022784A1
A miniature circuit breaker is provided which is adapted to improve automatic assembly of all components. Key components of the breaker are individually and collectively designed to be susceptible to total Z-axis assembly. In particular,...  
WO/1993/022786A1
An improved miniature circuit breaker (10) is provided which is adapted to improved automatic assembly of all components thereof. Key components of the breaker are individually and collectively designed to be susceptible to total Z-axis ...  
WO/1993/016479A1
Disclosed is a helically wound core of ferrous material (14) used as a differential current sensor core in the ground fault sensor of a ground fault interrupter circuit. The ferrous material comprises a single strand of wire which is wou...  
WO/1992/017044A1
There is provided an enclosure that encapsulates a current transformer (1) by utilizing snap together members (12, 14) while allowing for electrical coupling between the transformer and external wiring. Two housing members (9, 11) will s...  
WO/1992/015110A1
In order to be able to fit a protective switchgear designed to be tripped by differential current or undervoltage, or designed as a free-trip device, in a restricted space, e.g. inside an ordinary right-angle mains plug, the invention ca...  
WO/1992/006484A1
An accessory module (104) for use with a circuit breaker (10) is configured for mounting to the breaker, and has rotor system (142) which follows the movement of the circuit breaker blade (24) in the breaker by means of a coupling member...  
WO/1992/005569A1
A residual current circuit breaker (1) has a partition wall (3) which separates an over-current protection device (4) from a residual current detection circuit (5). A plunger rod (24) extends through a bore (23) in the armature (21) of a...  
WO/1992/002065A1
A plug-in ground fault interrupting type circuit breaker includes a resilient jaw (42) for engaging the neutral bar in a loadcenter. The jaw is formed at the end of a conductive strap (70) which passes through the window of a transformer...  
WO/1991/013454A1
A residuel current circuit breaker (1) has a partition wall (3) which separates an over-current protection device (4) from a residual current detection circuit (5). A plunger rod (24) extends through a bore (23) in the armature (21) of a...  
WO/1991/005358A1
A circuit breaker control system (24) includes a motor driven fork assembly (36), activated from a remote location, for simultaneously opening all of the breaker load contacts (54) and locking them in an open position. A DC voltage is se...  
WO/1990/000807A1
An electromagnetic actuator (1) of the type of a relay, having an armature (2) polarized by a permanent magnet (5) and a movable drive element (6) attracted by the armature (2) against a spring means (8), incorporates an electric current...  
WO/1990/000805A1
A circuit breaker auxiliary device is housed in its own separate enclosed container (20) and is accessible by a drive pin (13) through an opening (18) in the container mounting surface (11). A drive pin (13) is inserted into an opening (...  
WO/1988/003324A1
A circuit breaker (10) having a movable upper blade (16) with a free floating pivot end (46). The operating mechanism (34) is solidly connected to the upper blade (16). The contact force is generated by a contact spring (44) which exerts...  
WO/1987/001237A1
An electric circuit breaker capable of being opened and closed from a remote location. The circuit breaker includes a stationary contact (14), a movable contact (16) mounted on a carrier (18) and a trip mechanism (40) that trips the circ...  
WO/1986/002197A1
A bimetallic trigger for a switch, for example a motor protection switch with a trigger bridge (10) and a differential bridge which can move in relation thereto, in which the ends of the bimetallic strips (17) lie between the two bridges...  
WO/1986/001936A1
In order to prevent an electrical tool, for example a hand-drill, a mowing machine or similar, from starting up again by itself after an interruption in the power supply or a line fault, owing to the fact that it has not been switched of...  
WO/1985/002724A1
New device for protecting human life and property against electrical shock and more specifically to a shock hazard prevention system for disconnecting an electrical load from an electrical source when a shock hazard condition exists with...  
WO/1983/003160A1
To protect the operator of an electrically supplied apparatus in a damp room against an electric discharge, there is provided a protection device comprised of a probe formed by two conductors (44, 45; 46, 47) which cannot come in contact...  
WO/1981/001092A1
The device allows the control of the output cut off elements, such as contactors breakers, protection switches of motors or similar, and apparatus or installations. The computer is connected, through an analog-digital converter, to at le...  
WO/1979/000127A1
Defect current protection switch, in which the conductors (5) are associated to a core (6) of which the magnetic induction flux actuates, in case of defect, a tripping device. When a magnetic field produced by the defect current is super...  
WO/1979/000105A1
The lead (8) of a working current is associated to a core (3) of which the magnetic induction flux causes, in case of leakage of current, the operation of a circuit-breaker. In this case, an armature (4) of the breaker drops because of t...  
JP2017188986A
[Subject] It can be made to perform highly precise detection also to a short circuit waveform containing a waveform which controlled a harmonics noise, serge, and erroneous detection by an unusual waveform, and was rectified by load. [Me...  
JP2017188201A
[Subject] The noise tolerance of a short circuit detector circuit is improved. [Means for Solution] Voltage [1 / 1st comparator COMP] S3 according to detection signal S2 from zero-phase-sequence current transformer 104, and the predeterm...  
JP6209725B2  
JP2017182936A
[Subject] In a portability type actuating current measuring instrument, while being able to attain-izing for a short time [of measurement], a burden at the time of measurement can be eased for a worker, and moreover, a measuring instrume...  
JP2017182937A
[Subject] In a portability type short circuit operation test machine, while time and effort which inputs actuating current information at the time of an examination for a worker is mitigable, raise the accuracy of input data and, moreove...  
JP2017181119A
[Subject] While time and effort which inputs actuating current information at the time of an examination is mitigable, lower limit information of operation can be acquired in a short time, and a portability type short circuit operation t...  
JP2017168330A
[Subject] In a portability type short circuit operation test machine, while a burden at the time of measurement is mitigable for a worker, provide a measuring instrument which can treat measurement record data statistically by recording ...  
JP2017168329A
[Subject] In a portability type actuating current measuring instrument, while being able to attain-izing for a short time [of measurement], a burden at the time of measurement can be eased for a worker, and a measuring instrument which c...  
JP6195189B2  
JP2017157431A
[Subject] An earth leakage breaker which can reduce unnecessary operation is provided ensuring protection at the time of a short circuit. [Means for Solution] Magnetization circuit 13 which outputs a measurement signal which consists of ...  
JP6188554B2  
JP3211914U
[Subject] It is an energization interrupting device of a short circuit breaker in a ready-made distribution board unit, and when earthquake seismic intensity beyond a setup has been perceived, in order to prevent an outbreak of a fire, a...  
JP6173118B2  
JP6168491B2  
JP6168342B2  
JP2017126438A
[Subject] A voltage range applied is wide, and shortens short circuit injection operating time, and it provides an earth leakage breaker without a possibility of tripping also with a power supply adversative conjunction interlock state, ...  
JP6163950B2  
JP6157390B2  
JP6159747B2  
JP2017516281A
This invention relates to a microswitch (2) connected with a fuse (3) or a circuit breaker at series, and a protection instrument (1) containing a current measurement unit (5), and a memory unit (4) and a control unit (6). At least one c...  
JP6142732B2  
JP2017096644A
[Subject] An earth leakage breaker which uses a current detecting apparatus and this which can detect wide range current from micro current to a high current is provided. [Means for Solution] The 1st current detection part 3A that detect...  
JP6138353B2  
JP6139345B2  

Matches 401 - 450 out of 4,670