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JPH09233684A |
To provide an excessive temperature rise preventive circuit of an electronic controller which has a high heat resistance, high productivity, and high degree of freedom in designing. In an electronic controller 7, a normal open type therm...
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JPH09229992A |
To miniaturize a diagnostic device for electric apparatus, which performs an insulation diagnosis and other diagnoses and to reduce the number of signal cables to be used. Potential vibrations or electromagnetic waves which are generated...
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JPH09233683A |
To make it possible to use a breaker without an earth leakage breaking function, by providing a pseudo open-phase circuit connected to a relay that is operated by a relay driving circuit for changing each contact on the basis of a signal...
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JP2645580B2 |
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JP2645671B2 |
An electric circuit unit including a plurality of electric circuit elements and a manufacturing method thereof are disclosed in which connection between terminals of the electric circuit elements is made directly or using flexible conduc...
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JPH09218083A |
To obtain an earthquake-sensitive connector which can be conducted again in safety state while imparting earthquake-sensitive function to any electric apparatus by a constitution wherein power supply to the output side is interrupted whe...
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JPH09219926A |
To calculate the time when it reaches the highest temperature of the main engine and the tolerable limit temperature of the main engine by putting the operation cycles of the temperature of the main engine at and immediately after the cu...
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JPH09219925A |
To provide an antiseismic safe safety breaker with a built-in confirmation device by automatically breaking an AC power source within a building such as a residence, a factory, a store, mansion, an apartment, a school, a poultry pen, a p...
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JPH09213182A |
To provide a motor protector which detects the constraint and overload time of a rotor as well as cooling gas leak so as to protect the motor. A motor protector is equipped with a switch 7 opening/closing in response to a flowing current...
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JPH09213194A |
To provide a vibration breaker for cutting off a power source due to vibration of an earthquake by connecting a breaker lever to a dead weight mounted on a pan by a thread. When a dead weight 1 mounted on a pan 4 for the weight is fallen...
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JPH09213181A |
To provide a device for preventing a secondary disaster at an earthquake disaster by shutting off a power source switch automatically or closing the main cock of gas when a strong earthquake is sensed. A weight 1 connected to the lever o...
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JP2641588B2 |
A power apparatus has a network (1) formed by a plurality of interconnected components being e.g. one or more high voltage conductors in a casing of a metal filled with an insulation gas. Detectors (S1,S2,S3) are provided which detect el...
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JP2637306B2 |
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JPH09205725A |
To enable use of a lighting for refusing and prevent generation of fire due to leakage of electricity by detecting the earthquake with an earthquake detector and operating a timer, upon detection of earthquake higher than the predetermin...
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JP2636743B2 |
PURPOSE: To measure a partial discharge with high sensitivity even when a detection place is away from the generated place of the partial discharge by a method wherein a frequency at which a computed value by a specific expression become...
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JPH09190759A |
To provide a device for preventing the occurrence and spread of fires due to electricity in an earthquake by complementing functions which a distribution board has, and stopping the supply of electricity to electric paths, electric appli...
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JPH09178799A |
To locate the position of a grounding fault generated in a long compressed gas insulated cable reaching several km long with a small number of devices and without providing a through hole in a container. A device is constituted so that t...
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JPH09168230A |
To interrupt the main and branch circuit breakers selectively by providing a decision means for delivering a signal immediately to an output means when a decision is made that a detected signal is an earthquake detection signal and deliv...
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JPH09166483A |
To enhance the detection sensitivity of an abnormality by a method wherein the frequency-spectrum analyzed result of a normal sound is subtracted from the frequency spectrum of a monitored sound and only the component of an abnormal soun...
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JPH09163590A |
To obtain a switch circuit in which the overall size and cost are reduced while simplifying the wiring by integrating a plurality of switching sections, an abnormal circuit detecting section of each switching section, and a single contro...
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JPH09163587A |
To interrupt a circuit connecting between a plug blade terminal and a blade receiving terminal surely upon occurrence of earthquake by providing a seismoscopic switch and a control circuit section on the circuit connecting between plug b...
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JPH09163588A |
To interrupt a primary power supply before the temperature reaches a level for actuating a thermostat by a constitution wherein an abnormal temperature decision circuit determines an abnormally high temperature of an apparatus and a powe...
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JPH09149541A |
To make it possible to add overcurrent interruption to ordinary relay operation without any additional overcurrent interrupting circuit and dispense with the replacement of parts by adding to the contact circuit of a relay a bimetal cont...
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JP2536942Y2 |
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JPH09140047A |
To make it possible to monitor an increase in temperature for a part accurately, regardless of environmental temperatures, by using a first thermosensitive element for detecting an absolute temperature of the part and a second thermosens...
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JP2611481B2 |
An abnormal temperature detector for an electronic apparatus includes a plurality of temperature detectors, an abnormality detector, and a power supply controller. The plurality of temperature detectors are arranged at least at one detec...
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JPH09126937A |
To make it possible to monitor leakage of hydrogen accurately all the time without the effect of the fluctuation of the temperature of cooling water accompanying the magnitude of the load of a generator by providing a cooling-water tempe...
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JPH09130963A |
To provide a highly reliable power factor improving unit suitable for system power supply and the like. A first power factor improving system comprising a noise filter NF2 and a power factor improving module PF1 and a second power factor...
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JPH09128065A |
To provide a power supply device capable of preventing the occurrence of an unexpected fault in an applied electronic system or the like. A switching circuit 2 for inputting or interrupting non-stabilized voltage Vi is connected to the p...
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JPH09121444A |
To provide a protective element which protets a battery pack from the defects in a load and which can reset by itself when the defects are eliminated. A protective element 10 includes a switch 12, a control FET 14, and three resistors 16...
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JPH09120326A |
To change a card on-line by making it possible to reset a lock not through manual operation without abruptly varying the opening extent of an operation end. A comparator 21 finds the difference between a measured value and a control set ...
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JPH09107628A |
To provide an electric vehicle and power source thereof which enable prevention of occurrence of a leak from an unspecified place even when water penetrates into the electric vehicle. In a battery unit 20, a waterproof case 22 and a floa...
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JPH09107626A |
To provide a relay which can give a trip command to a circuit breaker quickly when a transformer winding reaches a temperature rise limit due to a fault current flowing through the winding and a line in an emergency overload. This relay ...
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JP2532593Y2 |
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JPH0993794A |
To prevent burning of an electric-magnetic protection body by connecting in series a plurality of automatic recovery type thermal protectors connected in parallel to the primary side of the electric-magnetic circuit or in series to the p...
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JPH0993832A |
To illuminate the dark surroundings surely in safety upon occurrence of a large scale earthquake in the night. The illuminator L1 comprises an illuminatiion lamp, a vibration sensor 3, a photosensor 5 for detecting the illuminance, and a...
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JP2595802B2 |
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JP2594439B2 |
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JPH0974662A |
To prevent the occurrence of such a secondary disaster as the burning, fire, etc., of electric equipment caused by a short circuit, leak current, etc., by breaking voltage supply to the load side of the electric equipment by actuating a ...
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JPH0974781A |
To provide a protective device for a regenerative braking circuit in a servo control apparatus which surely protects the overload of the regenerative braking circuit. A protective device is provided with a deceleration detection part 9 i...
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JPH0969331A |
To break a electric path by the same operation as that at the time of overcurrent at occurrence of earthquake by providing a breaker with a vibration sensor, an output relay, a microcomputer for judgment of vibration level, a setting swi...
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JPH0962337A |
To provide the monitoring system which diagnoses the abnormal vibrations, displays the estimated cause on a CRT together with output of an alarm against occurrence of an abnormal vibration, secures the accurate monitoring through the scr...
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JP2527023Y2 |
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JPH0956054A |
To provide a switch circuit which can cut off, for example, a circuit using an electric heater on a load side or turn on an emergency light source upon detecting the occurrence of an earthquake. An earthquake detecting device 2 is connec...
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JPH0956153A |
To detect the temperature of an FET and then blow out a fuse before the FET melts and breaks down due to heat by providing a gate means which lets the FET continue conducting when it detects that the temperature of the FET reaches a valu...
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JPH0955301A |
To obtain a positive temperature coefficient thermistor element for protecting the components-in an electronic apparatus individually without increasing the installation space and cost of positive characteristics thermistor element. The ...
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JPH0946893A |
To monitor abnormality in battery in a simple constitution at low power consumption, by using a thermo-sensitive switch for each block including at least a cell in a set battery. A set battery 10 is constituted by a plurality of single c...
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JPH0946888A |
To reduce the capability of an emergency safeguarding apparatus to supply power required as a power supply unit and attain the miniaturization of the entire apparatus, by keeping supplying drive systems with power from a battery to drive...
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JPH0942162A |
To provide a protection network of a pump, capable of holding a cutoff state of an energized current in a simple circuit structure after interrupting this energized current to the pump by means of a circuit protective means and, there is...
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JPH0937448A |
To provide a method for melting the snow on a transmission line for generating heat for melting snow only when snow falls and for preventing an unneeded power loss. When the snow fall on transmission lines 12 and 13 for connecting two su...
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