| Document |
Document Title |
|
JP3266213B2 |
PURPOSE: To operate a leak display device regardless of overcurrent tripping in a leakage breaker having an electronic overcurrent tripper. CONSTITUTION: A leak tripping trip coil 3 driven by the signal from a zero- phase current transfo...
|
|
JP2002075164A |
To provide a ground leakage breaker which will not cause troubles regarding contacting of the finger tip of an operator to a handle, when operating a test button, even though its width is smaller than that of one pole of an agreed type (...
|
|
JP2002078187A |
To improve reliability of a leakage test.A leakage breaker has contacts S1 to S3 for plural poles between the input and output terminals 10A, a zero phase current transformer with an unbalance current detector coil 111 through which the ...
|
|
JP3261015B2 |
To make it possible to automatically interrupt power supply if an electrical appliance for water tanks causes leak of electricity in water in a tank, by providing the control pole, formed on a switching element for the control of the exc...
|
|
JP3254934B2 |
PURPOSE: To obtain trip exciting current for a trip coil without being affected by a high impedance of a secondary winding of a current transformer included in a circuit by stepping up excess current of a control power supply by means of...
|
|
JP3252444B2 |
PURPOSE: To allow a leak indicating button as well as a leak indicating lamp to indicate leak even when the leak disappears of itself, and allow enough time delay before cutting off when immediate cutoff is not desirable even on the occu...
|
|
JP2002033040A |
To provide a method of strongly fixing a trip coil unit to a circuit board of an earth leakage breaker.The trip coil unit 6 is fixed to the circuit board 3 included in the earth leakage breaker 1 with a trip yoke 12, and thereby, can str...
|
|
JP3250648B2 |
To prevent the burning of wires resulting from repeated closing of electric lines soon after a trip operation by allowing no reset and re-closing of a circuit breaker even if the power supply of an overcurrent trip device disappears by t...
|
|
JP3250640B2 |
PURPOSE: To simplify wiring and assembly work, regarding a plug-in earth- leakage circuit breaker having a plug as integral part thereof for insertion in a receptacle. CONSTITUTION: The blade 9 of a plug 8 is extended and, then, the exte...
|
|
JP3251248B2 |
To detect a ground fault accurately by a relay without being affected by conditions such as temperature characteristics of a current transformer. When a ground fault occurs on a line An branched from a main circuit, a current transformer...
|
|
JP2002027661A |
To prevent unwanted operation of a leakage relay which occurs sometimes in the other transforming chamber, if a grounding fault occurs in the secondary side of a transformer in one transforming chamber, in the case where the secondary si...
|
|
JP2002025417A |
To provide a ground leakage breaker which can be easily fitted to an office equipment.An inlet part 5 is formed integrally with a case 1, an attachment plug is composed of a blade 23 set inside the inlet part 5 in a protruding way, and a...
|
|
JP3246560B2 |
PURPOSE: To reduce space for setting up a tripping mechanism of providing a pawl, by which force is dropped in steps by lever ratio, between a latch receiver for stopping a latch and a trip cross bar. CONSTITUTION: In the case of weakeni...
|
|
JP3246117B2 |
PURPOSE: To provide a primary conductor structure in which a required space in the longitudinal direction of a zero-phase current transformer is minimized, and the integration into the zero-phase current transformer is facilitated when t...
|
|
JP3246562B2 |
PURPOSE: To utilize a mold container for both a wiring breaker and an earth leakage breaker. CONSTITUTION: A spare clearance 14 for separating an overcurrent tripping device 4 from a terminal 11 on a load side is formed inside a mold con...
|
|
JP2002008512A |
To make the assembly, adjustment or wiring work simple in the two pole earth leakage breaker which is used as a safety breaker.An opening 29 is provided at the backside of the mold case and a printed board mounted with an earth leakage d...
|
|
JP2002500812A |
A Positive Temperature Coefficient Resistivity (PTC) element has a resistivity that increases as the temperature increases. Circuit breakers having PTC elements can achieve better overload and short circuit protection than existing produ...
|
|
JP3239547B2 |
PURPOSE: To facilitate arranging work of a circuit breaker into an apparatus body by housing respective fixed iron cores and respective movable iron cores in a case to hold respective conductive plates in a condition of sandwiching the p...
|
|
JP3239546B2 |
PURPOSE: To provide an electric current detecting device for a circuit breaker by which electric current value adjusting work to open forcibly contact points of the circuit breaker can be facilitated. CONSTITUTION: Plural conductive plat...
|
|
JP3234445B2 |
PURPOSE: To provide an earth leakage breaker of such a structure that the lead leading from a circuit part to sense unbalance current to a solenoid to actuate a tripping mechanism are not drawn around inside of the breaker body. CONSTITU...
|
|
JP3234005B2 |
PURPOSE: To improve a circuit breaker so that requests from users can be satisfied and the uniformity or safety of operation can be supported according to a facility where a circuit breaker is mounted. CONSTITUTION: A tripping device 5 h...
|
|
JP3234529B2 |
To provide a circuit breaker such that the work of incorporating a movable contact and a contact pressure spring into a cross bar is facilitated and that a breaker body can be miniaturized. A movable contact 25 having a moving contact 22...
|
|
JP3232211B2 |
PURPOSE: To set off large the insulating distance between electric path conductors using a restricted space in the center hole of a zero-phase current transformer. CONSTITUTION: The central pieces of electric path conductor 23a, 23b, 23c...
|
|
JP2001325873A |
To provide ground-fault circuit interrupter, in which an arrangement of a test terminal unit is not limited and various parts constituting it can be arranged freely, and which is small in size and has low profile.The test button 2 is for...
|
|
JP2001327010A |
To prevent complete power failure and to secure safety of other branch circuits without operating a master ground fault circuit interrupter, even if a branch ground fault circuit interrupter is actuated.A ground fault circuit interrupter...
|
|
JP3231374B2 |
PURPOSE: To reduce an electric power loss in an electric power supply circuit, and expand an applicable voltage range by connecting an electric current limiting circuit composed of a parallel circuit of a constant current diode and a con...
|
|
JP3227670B2 |
To adapt an internal assembly structure of a molded case circuit breaker and an earth leakage breaker to automatic assembling by introduction of robots. A contact switching mechanism unit 50 assembled by mutually coupling a movable conta...
|
|
JP3228039B2 |
PURPOSE: To provide an earth leakage breaker reducing the outer diameter size by improving the layout of primary conductors inserted into a zero-phase current transformer. CONSTITUTION: This earth leakage breaker is provided with a mold ...
|
|
JP3228018B2 |
PURPOSE: To provide an earth leakage breaker which can be constructed with less inversive assembly works and overhead wirings, can be assembled by component stack-up method from the base topsurface, can reduce the man-hours in works and ...
|
|
JP3224080B2 |
To detect a quake in accordance with a destruction intensity of a building and eliminate factors enlarging a disaster before the building is destroyed, by setting a vibrator operating in response to a shift including an up/down movement ...
|
|
JP2001297682A |
To solve the problem that an earth leakage breaker does not work if malfunctioned at a secondary side, when an electrical failure occurs on at a primary side and disasters are induced by the overheat of an electrical apparatus at the sec...
|
|
JP3221599B2 |
To check the current-carrying of a breaker simply and surely and at low cost by providing a current-carrying display which indicates the current- carrying of the main circuit in the vicinity of the operation handle of the surface of a ca...
|
|
JP2001286052A |
To provide a wiring circuit-breaker which detects not only heat generation by the heat generating phenomenon of cuprous oxide breeding at a terminal portion, but also short-circuit current not larger than 200 amperes and its heat generat...
|
|
JP2001281290A |
To provide an arc fault detector 1 which has high sensitivity to a carbon arc and high immunity from an desired trip. This detector comprises a mean instantaneous current generator 3 which generates the execution-time mean of current ins...
|
|
JP3217253B2 |
To make open at electric path when a power failure is finished and service is restored by inputting a leakage current detected by a zero(0) phase current transformer to a trip coil, and connecting a contact of a relay forming a delay cir...
|
|
JP3216762B2 |
PURPOSE: To prevent a malfunction when a transient condition or a distorted wave are generated. CONSTITUTION: Full-wave rectification is performed on a voltage signal having respective phases R, S and T of a main circuit by a full-wave r...
|
|
JP2001268779A |
To provide an earth-leakage circuit breaker wherein malfunction due to high-frequency leak is prevented.The earth-leakage circuit breaker A is provided with a zero- phase current transformer 5 that detects unbalanced current passed throu...
|
|
JP3210820B2 |
PURPOSE: To improve assemblage by enabling a zero-phase current transformer separately from a moving contactor. CONSTITUTION: A terminal block 21a constituting a power source connection terminal 20a has one end of a braided wire 103 weld...
|
|
JP3210819B2 |
PURPOSE: To provide an earth-leakage circuit breaker having the capability of ensuring freedom from the erroneous indication of fault current and reducing the number of components, compared with the conventional constitution. CONSTITUTIO...
|
|
JP2001256877A |
To provide an electric leakage trip device of an earth leakage breaker capable of keeping sufficient distance between the contacts even in the case where the electric leakage trip device is installed above the contacts to accomplish redu...
|
|
JP2001256848A |
To promote a spread of an earth leakage circuit breaker that helps to prevent a fire in case of an earthquake by providing a seismic sensor switch in a distribution board circuit of an existing earth leakage circuit breaker such as for h...
|
|
JP3208797B2 |
PURPOSE: To trip a circuit breaker reliably even when a main detecting relay or a fault detecting relay functions instantaneously according to system fault conditions and to firmly hold the indication representing the function of the mai...
|
|
JP2001221814A |
To provide a current transformer for a ground leakage breaker used in a circuit, having at least one line conductor (12) and a neutral conductor (14).This current transformer (10) includes a toroidal core (16), having a circular opening ...
|
|
JP3194716B2 |
To prevent a nonconformities such as an accident by closing in non- voltage state by engaging the engaging part of a hook with a lock bar so that the mounting of a cover is incapable of being performed, in the mounting of the cover in th...
|
|
JP3194713B2 |
To increase attracting force of a movable core by energizing a second coil as required on the basis of a magnetic flux generated by a first coil, and to prevent a mis-operation of a closed circuit through a handle operation by adding the...
|
|
JP2001204134A |
To provide an unbalanced energizing display breaker which has low power consumption and is capable of discriminating an unbalanced condition with a simple circuit. If the working current of the unbalanced energizing display breaker is la...
|
|
JP3189930B2 |
PURPOSE: To provide an earth leakage breaker of high reliability such as eliminating burning an electronic part even in the case of reverse connection while surely opening a contact and actuating a fault current display device when gener...
|
|
JP2001190022A |
To provide a lightning protection device provided with an automatic reset function which can turn off a load opening/closing unit at the time of lightning, can be quickly and automatically set and does not automatically set the load open...
|
|
JP2001185007A |
To provide a rapid current-limiting switch can be switched rapidly, as coaxial shapes of contact arrangements are arranged very compactly to avoid undesirable leakage inductance. A rapid current-limiting switch (S) has an arc discharge c...
|
|
JP2001176373A |
To cause a breaker to promptly perform a power-supply break by detecting by a switch that a steel ball is separated from a magnet.This power-source breaker device comprises a magnet 6 which attracts a steel ball 21 on its lower face side...
|
