序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
181 Circuit breaker JP14459785 1985-07-03 JPS628422A 1987-01-16 TERAOKA WATARU
182 JPS6120099B2 - JP4725177 1977-04-22 JPS6120099B2 1986-05-20 TADASAWA TAKAAKI; YAMAGUCHI SEIJI
183 Magnet type releaser for breaker JP21445185 1985-09-27 JPS6185745A 1986-05-01 JIYON DABURU YANGU
184 JPS6051227B2 - JP1377880 1980-02-08 JPS6051227B2 1985-11-13 ROBAATO CHAARUZU MIRAA
185 JPS5946083B2 - JP6032380 1980-05-06 JPS5946083B2 1984-11-10 OONUMA SHOEI
186 Electromagnetic device for circuit breaker JP15086082 1982-08-31 JPS5940433A 1984-03-06 TANAKA TAKANOBU
187 Device for instantaneously tripping circuit breaker JP11552082 1982-07-05 JPS598235A 1984-01-17 KAMIDACHI TAKEYUKI; IZAWA IKUO
188 Method of producing low voltage breaker current detector and low voltage breaker JP3713282 1982-03-09 JPS57158920A 1982-09-30 MISHIERU RUGURAN; POORU KANOONU; KURISUCHIYAN BUROO
189 Shorttcircuit current detector JP4725177 1977-04-22 JPS53132779A 1978-11-18 TADASAWA TAKAAKI; YAMAGUCHI SEIJI
190 Denjihikihazushisochinochoseisochi JP14834075 1975-12-11 JPS5185474A 1976-07-27 GEORUKU WAITONA
191 JPS50121204U - JP3159974 1974-03-18 JPS50121204U 1975-10-03
192 METHOD FOR ADJUSTING A MAGNETIC RELEASE MECHANISM US15624151 2017-06-15 US20170365429A1 2017-12-21 Matthias Kulke; Christian Urban; Jörg Schierz
A method for adjusting a magnetic release mechanism includes steps: a first measurement of the present release current I of the magnetic release mechanism is carried out, a decision is made as to whether an adjustment step is performed, a start-adjustment current IJ0 is selected, a second measurement of the present release current I of the magnetic release mechanism is carried out, a decision is made as to whether an adjustment step is performed and that in the event that an adjustment step is necessary, a selection of a certain differential amount ΔIJ takes place, partial demagnetisation of the permanent magnet is carried out in a further adjustment step with the adjustment current IJ formed in this way and the steps are carried out in succession until the release current I measured lies within a specified range between ITARGET_min and ITARGET_max.
193 Methods and apparatus for an improved magnetic armature selective tripping device of a circuit breaker US14376679 2012-03-05 US09672995B2 2017-06-06 Justin Michael Cardwell; Luis Miguel Franco Caballero
Methods, apparatus, and systems are provided for a selectivity device for a circuit breaker. The invention includes a modular assembly adapted to be coupled to a load conductor assembly. The modular assembly includes a tripping plunger including a cam surface adapted to interact with a breaker tripping mechanism; an armature coupled to the tripping plunger; a yoke adapted to generate a magnetic field in response to an electric current in the load conductor assembly and disposed to apply a magnetic force proportionate to the electric current on the armature; and a spring assembly adapted to counter-balance the magnetic force up to a predefined tripping current in the load conductor assembly. Numerous additional aspects are disclosed.
194 SHORT-CURRENT PROTECTION ACTION CURRENT ADJUSTING METHOD AND DEVICE THEREOF AND DEVICE FOR MULTI-POLE ELECTROMAGNETIC RELEASE US15322388 2015-01-16 US20170133186A1 2017-05-11 Denggui AO; Yongfu XU; Yuming DUAN
A short-circuit protection action current adjusting method and a device thereof for a multi-pole electromagnetic release. An electromagnetic system includes an auxiliary static iron core, a second static iron core, a coil, a reset spring and a dynamic iron core; at an initial position, a first gap is formed between the auxiliary static iron core and the dynamic iron core, a second gap is formed between the dynamic iron core and the second static iron core, and the thickness of the second gap changes in the same direction along with the size variation of a release threshold; the elastic force of the reset spring changes oppositely along with the size variation of the release threshold; when a release current value is adjusted from large to small, the coil energy reduces in a quadratic relationship mode along with flowing currents and meanwhile the electromagnetic attraction between the dynamic iron core and the second static iron core is increased in a quadratic relationship mode, which is in inverse proportion to reduction of the thickness of the second gap. According to the short-circuit protection action current adjusting method and device thereof for the multi-pole electromagnetic release, adjustment of the release current value and electromagnetic attraction required by actions of the dynamic iron core are in a linear fixed corresponding relationship due to automatically achieved balance between two quadratic functions, and adjustment of the release threshold through the user is convenient, reliable and stable.
195 Circuit breaker including adjustable instantaneous trip level and methods of operating same US14791574 2015-07-06 US09595410B2 2017-03-14 Russell Thomas Watford
A circuit breaker including an adjustable instantaneous trip level. Adjustable instantaneous trip level can be applied to a one-pole and/or two-pole circuit breakers including a thermal and magnetic mechanism, including AFCI, CAFCI, and/or GFCI constructions. The circuit breaker includes a magnet position adjustment mechanism allowing an operator to adjust the instantaneous trip level to a desired setting, such as between about 5 to 10 times the handle rating. The design also allows for alternate magnets to be used for either an increased or decreased instantaneous settings as desired. In two-pole circuit breakers, the instantaneous trip level can be set independently for each mechanism pole. Multi-pole circuit breakers and methods of adjusting instantaneous trip level are provided, as are other aspects.
196 MOLDED CASE CIRCUIT BREAKER US14981670 2015-12-28 US20160268085A1 2016-09-15 Kyunghwan Oh
Disclosed is a molded case circuit breaker including a case configured to accommodate an element for trip, an upper cover detachable attached to the case, a dial configured to include a fixing plate, which is provided to protrude along an outer circumference surface thereof, and a first stopper disposed under the fixing plate, a crossbar moved by the dial, a first dial fitting hole provided in the upper cover for the dial to be fitted into the first dial fitting hole, and a dial rotation adjusting unit provided in the first dial fitting hole and fitted between the fixing plate and the first stopper to guide a rotation of the dial, the dial rotation adjusting unit including a plurality of fitting grooves arranged at certain intervals. The first stopper is fitted into and fixed to the plurality of fitting grooves according to the rotation of the dial.
197 CIRCUIT BREAKER INCLUDING ADJUSTABLE INSTANTANEOUS TRIP LEVEL AND METHODS OF OPERATING SAME US14791574 2015-07-06 US20160260570A1 2016-09-08 Russell Thomas Watford
A circuit breaker including an adjustable instantaneous trip level. Adjustable instantaneous trip level can be applied to a one-pole and/or two-pole circuit breakers including a thermal and magnetic mechanism, including AFCI, CAFCI, and/or GFCI constructions. The circuit breaker includes a magnet position adjustment mechanism allowing an operator to adjust the instantaneous trip level to a desired setting, such as between about 5 to 10 times the handle rating. The design also allows for alternate magnets to be used for either an increased or decreased instantaneous settings as desired. In two-pole circuit breakers, the instantaneous trip level can be set independently for each mechanism pole. Multi-pole circuit breakers and methods of adjusting instantaneous trip level are provided, as are other aspects.
198 ADJUSTABLE ELECTROMAGNETIC RELEASE US15024330 2014-09-19 US20160217959A1 2016-07-28 Zheng Shi; Jisheng Sun; Binhua Pan
The present invention discloses an adjustable electromagnetic release. A magnetic yoke is fixed on a bracket. A conductor passes through the bracket and the magnetic yoke and is mounted on the bracket. A shaft is mounted on the top of the bracket and is above the conductor. A push rod is mounted on the shaft and rotates with the shaft about the bracket. An armature is fixed on the push rod, the armature and the magnetic yoke are spaced apart. Adjusting mechanisms are mounted on the shaft. The adjusting mechanisms are mounted between the push rod and the bracket and on both sides of the push rod. A torsion spring is surrounded on the shaft and is within the adjusting mechanism. The adjusting mechanism contacts with the push rod. An adjusting rod is provided with a plurality of adjusting surfaces which contact with the adjusting mechanism. The adjusting rod is able to move along the longitudinal direction. The spring force of the torsion spring enables the push rod rotates towards a direction which makes the armature and the magnetic yoke separate. When large current passes through the conductor, the armature and the magnetic yoke attract each other under the electromagnetic force. When the electromagnetic force is larger than the spring force, the push rod rotates towards a direction which makes the armature and the magnetic yoke close. The push rod strikes the release mechanism to release and cut off the circuit. The electromagnetic force disappears, the push rod resets under the spring force of the torsion spring.
199 Methods and apparatus for calibrating a thermomagnetic trip unit of a circuit breaker US14370992 2012-03-05 US09396899B2 2016-07-19 Esteban Sandoval Camacho; Stephen Scott Thomas
Methods, apparatus, and systems are provided for calibrating a thermomagnetic trip unit in a circuit breaker base assembly. An apparatus for calibrating a trip unit includes a calibration nut, an extended armature guide pin having a threaded portion, a spring disposed on the calibration nut and coiled around the extended armature guide pin, and an armature disposed on the spring and adapted to be held by an electromagnet. The calibration nut is threaded on the threaded portion of the extended armature guide pin and adapted to translate up or down depending on rotation of the extended armature guide pin to compress or decompress the spring against the armature. The extended armature guide pin includes a slotted end that is accessible when the apparatus is installed in the circuit breaker base assembly. The calibration nut is also accessible when the apparatus is installed in the circuit breaker base assembly.
200 CIRCUIT INTERRUPTION APPARATUS PROVIDING AUTOMATIC REDUCED ARC MODE AND METHODS OF OPERATING THE SAME US14574864 2014-12-18 US20160181782A1 2016-06-23 Harry James Carlino; David Richard Olenak
A circuit interruption device (e.g., a molded case circuit breaker) includes at least one set of contacts, a contact actuator mechanism configured to open the at least one set of contacts and a trip control circuit configured to cause the contact actuator mechanism to open the at least one set of contacts responsive to a condition satisfying a first trip criterion and to apply a second trip criterion (e.g., a lower current level trip threshold) responsive to the opening of the at least one set of contacts. The trip control circuit may be configured to apply the second trip criterion after a succeeding closure of the at least one set of contacts. The trip control circuit may be further configured to return to application of the first trip criterion after lapse of a predetermined interval following the succeeding closure of the at least one set of contacts.
QQ群二维码
意见反馈