Abstract: A power cord having an integral and unitarily formed surge protector and reset circuitry for delivering a power flow to a stand-alone computer gaming unit. The power cord with integrated surge protector allows for the gaming unit to be plugged into any power source without the necessity of a separate surge protector. A power switch is incorporated to allow a user or operator to turn the stand-alone computer gaming unit on or off without having to access the rear of the unit. An audio output indicator is located on a grill portion to illustrate the audio level through a series of LED lights.

Abstract: A control circuit for operating a lamp or other electrically operated device using a conventional wall socket outlet that is selectively energized under the control of a conventional wall mounted switch. To permit the lamp to be independently controlled using either the wall switch or the lamp switch, a wall adapter unit is employed that plugs into the wall outlet and into which the lamp's power cord is plugged. Sensing means are employed to detect the operation of either the wall switch or the lamp switch to control an electrically operated switch which turns the lamp ON and OFF whenever either the wall switch or the lamp switch are operated. Different embodiments are provided for use with conventional electrical wiring and with either a conventional lamp or lamp incorporating additional circuitry to adapt it for use with the wall socket adapter.

Abstract: Apparatus is disclosed for controlling the supply of electrical power to an appliance such as a television, amongst many others. The apparatus comprises a controller that is operative to complete or to disconnect a supply of electricity to electrical apparatus in accordance with a programmed time schedule. The system further comprises one or more programming objects, such as RFID cards, by means of which a time schedule can be programmed in the controller, the programming object being removable from the controller during its normal operation.

Abstract: An operating device, where the device is actuatable by the fingers of a hand and is designed for control of functions in a functional apparatus that is equipped with a display screen or that communicates with a remote display screen. The operating device has a control element and a mounting ring designed for placing on a finger and designed for manipulation of said control element by using another finger on the same hand.

Abstract: A switching circuit includes switching transistors connected to one of an input terminal and an output terminal of the switching circuit, and a control bias supply circuit that supplies a control bias for cutting off all the switching transistors to the switching transistors when all of the switching transistors are in a non-selected state.

Abstract: The switch input processing module has: a control unit; a first external connection terminal to which either an analog signal of an analog signal system or a serial signal of a serial signal system is supplied; an analog signal transmission and serial signal transmission line which is disposed between the first external connection terminal and the control unit; and a second external connection terminal to which a determination signal indicating that either the analog signal system or the serial signal system is connected to the first external connection terminal is supplied. When the control unit determines that the determination signal indicates connection of the serial signal system, the control unit makes the serial signal transmission line conductive. When the control unit determines that the determination signal indicates connection of the analog signal system, the control unit makes the serial signal transmission line nonconductive.

Abstract: Device for sensing and blocking froth in a home machine for manufacturing soybean milk, watery bean curd, and bean curd, which allows a heater not to be operated only when the home manufacturing machine contains froth, so as to remove froth, thereby preventing the machine from getting damaged. The apparatus includes a plurality of components installed in a body. The device includes: a ground electrode and a signal electrode electrically connected to two selected components, respectively. A controller is provided for outputting a control signal for removing the occurrence of froth when froth is sensed.

Abstract: An apparatus and method for power plane control/management for a printed circuit board is provided. A single voltage regulator has an input terminal to receive a main voltage supply and has a drive terminal. First and second transistors, such as field effect transistors (FETs), have first terminals coupled to the drive terminal of the voltage regulator and second terminals coupleable to a first power plane. The first transistor has a third terminal coupleable to an auxiliary voltage supply, and the second transistor has a third terminal coupleable to a second power plane. During a first power mode, such as a full power mode, the drive terminal of the voltage regulator is coupled to turn off the first transistor and to turn on the second transistor, thereby providing regulated voltage from the main voltage supply to the first power plane and to the second power plane through the turned-on second transistor.

Abstract: A touch switching apparatus includes: a switching unit for evenly illuminating on a touch unit manipulated by a user among touch units with marks; and a driving circuit for driving the switching unit when detecting the manipulation. The touch switching apparatus includes: an insulating unit for inducing a capacitance as a user's body contacts and presented with a touch switch for manipulation of an instrument; a conductive unit for detecting a capacitance through the medium (dielectric) of a user's body contacting the insulating unit; a flat light emitting device for providing a backlight to the insulating unit to visibly express a corresponding switching unit when a body contact is detected by the conductive unit; and a drive unit for detecting whether a switch has been manipulated according to a change in a capacitance made by the conductive unit.

Abstract: A proximity switch is described, specifically a capacitive proximity switch, with two signal transmitters (1, 2) and with one signal receiver (3), a first signal output (4, 5) of each of the two signal transmitters (1, 2) being connected to one another and to a first signal input (6) of the signal receiver (3), and a second signal output (7, 8) of each of the two signal transmitters (1, 2) being connected via a respective signal transmission path (9, 10) to a second signal input (11) of the signal receiver (3), and at least one of the two signal transmission paths (9, 10) can be influenceable by an actuating object.

Abstract: Electrically operated folding operable walls controlled by an electrical operation circuit of the type having a key switch, a control panel, an extend limit, a stack limit, control relays and a motor. The invention consists of a mechanism designed to provide safety during the operation of said folding walls by sensing a person or object with a lead edge sensor, floor mat sensors, and a wireless transmitter and receiver assembly that, when wired to the folding wall control panel, will shut down the operation of the folding wall. Another mechanism provides for the restarting of the folding wall by resetting the relay inside the control panel.

Abstract: When each three-phase bus conductor for connecting each cable head 251 connected to a generator through a transformer to a terminal pad 100 as an air outgoing point connected to a transmission line is grounded at a part thereof existing between each gas breaker 151 to 159 and the terminal pad 100, one of the ends of a capacitor 300 is connected to the terminal pad 100 as the air outgoing point and the other end, to the ground through a support plate 302, an enclosure 318 and a support table 320.

Abstract: A circuit and method are disclosed for detecting activation of a switch, such as a mechanical switch. The circuit may include a first circuit for temporarily driving the second terminal of the switch to a second logic level. A second circuit, coupled to the switch, senses a voltage level of the second terminal of the switch and generates an output signal representative of the voltage sensed. A sequential logic circuit is responsive to the output signal of the second circuit so as to maintain a logic value representative of the switch having been closed.

Abstract: A matrix converter for transforming electrical energy between at least one voltage source, in particular a power supply network, and at least one current source, in particular a load, said converter including a matrix of switches connecting said voltage sources to said current sources, wherein each of said switches has two terminals which are interconnected via a photoconductive layer of diamond, each switch being controlled by means of a light source irradiating the layer of diamond interposed between the two terminals of the switch.

Abstract: An electrical switch assembly for controlling an electrical appliance, which assembly comprises first and second electrical elements. The first element is an on/off switch for initially switching on the appliance. The second element is a pressure-sensitive variable resistor for subsequently adjusting the operating condition of the appliance. The variable resistor comprises a first part having a resilient deformable and electrically conducting resistive surface, and a second part having a surface including two contacts and a resistive element connecting the two contacts. One of the parts is movable to press against the other part such that their surfaces bear against one another, thereby causing the resistive surface to deform against the surface of the second part over an area of contact and causing electrical connection between the resistive surface and element.

Abstract: A system for activating a load such as an exhaust fan within an enclosed area concurrently with the activation of a lamp switch and for continuing the operation of the load for a predetermined period of time after the deactivation of the lamp switch. A monitor detects when the lamp switch is activated and provides an output signal representative thereof. A timer is provided which is deactivated when the monitor output signal is present but functions when the lamp switch is deactivated and after a preset but variable time provides a signal for deactivating the load. The timer includes a pulse generator and a counter which receives the output of the pulse generator and counts pulses when the lamp switch is deactivated and provides the deactivation signal for the load when it reaches a predetermined count.

Abstract: A MOSFET based, high voltage, high current AC electronic relay. The relay includes a MOSFET switching circuit selectively switching between switch conducting and switch isolation and a first transformer coupled to the MOSFET switching circuit. The first transformer selectively applies a predetermined first voltage to the MOSFET switching circuit which establishes the MOSFET switching circuit in switch conducting. The relay further includes a second transformer coupled to the MOSFET switching circuit. The second transformer selectively applies a predetermined second voltage to the MOSFET switching circuit which establishes the MOSFET switching circuit in switch isolation. The relay is also provided with a control circuit linked to and controlling operation of the first transformer and second transformer.

Abstract: A function selecting control system is provided, which modularizes a plurality of wiper control systems, builds them in an integrated circuit, and selects a desired system on the basis of a selection signal of the system from the outside, thereby drive-controlling a wiper motor. The function selecting control system includes: input device 30a for inputting a selection signal which selects a control logic block 30h corresponding to a starting control mode out of the control logic blocks provided for every control mode of the motor; judgment device 30c for reading the input selection signal for a standard number of times and for judging the coincidence among the read selection signals; count device 30e for counting the number of times of the coincidence; settlement device 30f for settling the selection signal when the number of times of the coincidence reaches the predetermined standard number; and system starting device 30g for starting a control logic corresponding to the settled selection signal.

Abstract: An ESD protection circuit having silicon-controlled rectifier structure, includes a PNP transistor and an NPN transistor. A switch circuit is connected between a ground voltage terminal and a well region that is a base of the PNP transistor. The switch circuit is formed of plural diode-coupled MOS transistors, so that a trigger voltage of the SCR is determined by threshold voltages of the MOS transistors.

Abstract: A feed line switching circuit includes a relay connected between feed lines, a normally close contact of the relay, and a resistor that constitutes a series circuit with the normally close contact, which series circuit is connected in parallel with the relay. The resistance of the coil of the relay and the resistance of the resistor are determined to satisfy the condition that the current flowing through the relay after energizing the relay can prevent the chattering of the relay. Thus, the feed line switching circuit can positively carry out the feed line switching.

Abstract: An electrical circuit arrangement for controlling a unit, such as an adjustment system for windows or a sliding sunroof, that is driven by a motor and is situated in a motor vehicle. The arrangement guarantees that, in the case of a short-circuit of circuit components, especially a control device operation of a motor is still possible, especially in a preferred direction of motor rotation, whereby the direction of rotation results in an opening of the unit and the short-circuit is caused by salt water for instance. Two circuit-breaker elements that operate the motor in either direction can be directly activated by an allocated circuit device which bypasses a failed control device. The remaining circuit-breaker element is blocked at least when the first circuit-breaker element is activated.

Abstract: An integrated structure of a computerized table with alarm aiming to provide to its users a monoblock structure that will combine the functions of a working table or student classroom desk with the basic functions of a personal computer united in the same working environment, dispensing with or making unnecessary the acquisition of these utensils separately and integrating all these functions into the same working environment or physical space thus becoming a total integration of all mechanical and electro-electronic components to the physical structure of the computerized table.

Abstract: The switching apparatus is intended to be used with a segment of an electric power line having several phase lines. Each of the phase lines has several conductors electrically insulated one from the other and connected in parallel. The conductors of each phase line are short-circuited among them at two extremities of the segment. The apparatus comprises pairs of switches connected in parallel, for selectively opening and closing the conductors of each phase line, a detecting device for detecting current operating conditions of the segment, and a controlling device for controlling the pairs of switches according to the current operating conditions of the segment. The present invention also relates to a switching method.

Abstract: A touch type input device is used for various forms of control. A primary side line is connected to a power source, and a secondary side circuit ground through a power transformer are connected by an impedance element. Flat electrodes to be touched by a finger are formed on one side of an insulating base material, and are connected to a ground current detection circuit through a high resistor and a low pass filter. A control circuit for converting the output of the ground current detection circuit into a control signal for an electronic appliance, and a display unit are provided. Therefore, an input device having plural touch switches disposed on a base material in a free shape and layout can be obtained.

Abstract: An underwater telecommunications system has a first underwater cable for carrying data traffic, one or more underwater repeaters, and an underwater power network for supplying power to the repeaters. By providing a separate cable for some or all of the power supply, the power route may be made shorter, thus more power can be delivered, therefore more repeaters can be used, which enables more fiber pairs to be laid, and thus the capacity to be increased.

Abstract: A control apparatus which, in one particular aspect is accessible via the Internet, the control apparatus including in at least certain embodiments apparatus for controlling electrical power for an electrically powered device, the electrically powered device having a device power cord with a plug for connection into a power outlet, the control apparatus including an enclosure with an interior space, an opening through which a portion of the device power cord extends so that the plug of the power cord is positioned in the interior space of the enclosure, a power outlet within the enclosure to which the plug of the powered device is connected for providing electrical power to the powered device, an apparatus power cord extending from the power outlet from the enclosure, the apparatus power cord for connection to a power source for providing electrical power to the power outlet, a lockable switch interposed between the power outlet and the apparatus plug for selectively controlling the flow of power from the pow

Abstract: Power flow management is achieved in an electrical power transmission network using serial impedance modulation distributed throughout the transmission lines of the network. Switching units are mounted to insulated portions of transmission line towers in proximity to phase lines for modulating power flowing in at least one phase line conductor of at least one bundle conductor phase line in an electric power transmission line at a plurality of segments in the network. Power flow is managed in at the segments by changing the series impedance of the line by controlling the switching units. Enhanced insulation between phase line conductors is added. The power flow in a plurality of electric power lines of the network is analyzed, a desired change in impedance for the electric power lines is determined, and at least some of the switching units are controlled to implement the desired change in impedance.

Abstract: A power source unit is constructed by an AC/DC switching power source circuit 12, a battery unit 16, switching circuits 13 and 15, detecting circuits 18 and 21 corresponding to the switching circuits 13 and 15, and stop signal forming circuits 19 and 20. In the supplying mode, the power source circuit 12 is made operative, the switching circuit 13 is turned on, an output voltage formed by the power source circuit 12 is supplied to the load side, and at the same time, the switching circuit 15 is turned off by a stop output from the stop signal forming circuit 20. In the charging mode, the power source circuit 12 is made operative, the switching circuit 15 is turned on, the output voltage formed by the power source circuit 12 is supplied to the battery unit 16, and at the same time, the switching circuit 13 is turned off by a stop output of the stop signal forming circuit 19.

Abstract: A computer input device used to input coordinates and three-dimensional graphical information into a computer. The device includes an acceleration sensor that has a fixed volume vessel containing a magnetic fluid. A non-magnetic inertial body is located in the magnetic fluid. Three magnetic field source are located on three perpendicular axes where each magnetic field source has an output for connection to a computer.

Abstract: A rotary control for control surface on a processor, like on a large scale audio mixer or other system, includes an illuminated display for angular position, such as lights arranged in an arcuate pattern indicating the value of a parameter by an angular position, on the top of the knob. By placing the display directly on the top of the knob, a crisp illumination is provided allowing an operator to obtain rapid visual feedback concerning the parameters under control. Furthermore, the display allows a variety of display modes, which are suited to the particular parameter under control. The rotary control comprises a stator mounted on the control surface which has a proximal end adjacent to control surface and a distal end. An array of lights is mounted on the distal end of the stator and arranged in an arcuate pattern. A rotor is mounted on the stator, and operable by an operator. The rotor has a shape near the distal end so that the array of lights is visible to the operator.

Abstract: A polarity reversal protective circuit for an electronic power output stage that can be driven via a drive circuit is described. In the case of an incorrect polarization of a supply voltage, power FETs are used in at least one supply terminal to interrupt a connection of the wrongly applied supply voltage to the drive circuit and the power output stage. A definite polarity reversal protection is obtained using a circuit that is improved with respect to cost and space requirement. A single N-channel power FET is looped, with its source-drain path, into the positive supply terminal of the supply voltage. The source terminal of the N-channel power FET is connected with the positive supply terminal. The gate terminal of the N-channel power FET is connected to a collector of a PNP transistor, which is additionally connected to an output of the drive circuit via a current-limiting resistor.

Abstract: The invention relates to a testable on-chip capacitor cell 10 including a decoupling capacitor (Ci) which can be disconnected from the power distribution network and discharged through a cell internal discharge circuit. An externally controllable switch (Si) connects in a first switching position the decoupling capacitor to the power supply system and disconnects in a second switching position the decoupling capacitor from the power supply system and connects it to a resistor (Ri) which is part of the discharge circuit. An off-chip control unit (16) is provided for toggling the switch with a frequency fT between its first and second position to perform a capacitor test operation. By a current measurement device the averaged power supply current demand of the decoupling capacitor is measured when switch (Si) is toggled. The actual capacity of the decoupling capacitor is determined as a function of the power supply voltage, of the switch toggling frequency (fT) and of the averaged power supply current measured.

Abstract: A semiconductor bilateral switch that minimizes the on-state resistance by making a common-source connection between the switch transistors internal to the package. Wire bonds internally connecting the source electrodes of the transistors also provide the function of one or both of a current sense resistor and fuse element.

Abstract: In a power window device, a DOWN switch has first and second switches in a power window circuit located in a door for a window of a passenger's seat. A normally-closed contact of the first switch and a remote UP terminal of the power window circuit to which an UP signal is applied from a power window circuit provided near the driver's seat are connected. A normally-closed contact of the second switch and a remote DOWN terminal of the power window circuit to which a DOWN signal is applied from the power window circuit are connected. When the DOWN switch is manually operated, a signal supply line to which the UP signal and the DOWN signal are applied and a power supply line to which a power source is connected are electrically disconnected. As a result, the power window device is operable even when the signal supply line is grounded due to submerging in water.

Abstract: An apparatus operable in a wet environment, for controlling the flow of electrical current to an electrical load, adapted to be coupled to an AC source for supplying an AC signal. Includes a switching device coupled to the electrical load, the switching device being operative in either a first state wherein significant current flow through the load is prevented or a second state wherein current flow through the load is substantially undisturbed. An interconnection means is adapted to be coupled to an AC source and electrical load, wherein the interconnection means allows for plug and receptacle connection to the AC source and electrical load, respectively. Also includes a telemetry receiver for receiving user input signals from a transmitter to determine the operating status of the switching device. A controller receives the switching device status signals from the radio receiver and is used for switching the switching device between its first and second states in a predetermined sequence.

Abstract: A circuit placed between an alternating current actuated device and a digital logic controller to isolate the digital logic controller from the AC line power and to provide a signal indicative of actuation of the alternating current device.

Abstract: A scalable N×M switching matrix architecture is characterized by a readily calculable number of crossover locations and comprises one or more single pole, N throw (“SPNT”) switches and, for each such switch, an N state impedance converter/amplitude compensation network.

Abstract: The switching apparatus is intended to be used with a segment of an electric power line having several phase lines. Each of the phase lines has several conductors electrically insulated one from the other and connected in parallel. The conductors of each phase line are short-circuited among them at two extremities of the segment. The apparatus comprises pairs of switches connected in parallel, for selectively opening and closing the conductors of each phase line, a detecting device for detecting current operating conditions of the segment, and a controlling device for controlling the pairs of switches according to the current operating conditions of the segment. The present invention also relates to a switching method.

Abstract: The present invention relates to a data protective receptacle with the power saving function to accomplish the power saving by getting a sub-receptacle to be automatically controlled so that it may be on or off by a main receptacle. Since this invention can get the power for driving peripheral appliances automatically to be off when the main power for the computer system gets to be off, it can reduce the consumption current thereof while it stands by. Also, this invention gets both alternating-current (AC) power lines to be off when the main system gets to be off, and thereby, it can cut off any leaking current flowing between one power line and the ground line so that the power consumption may be reduced while the system stands by.

Abstract: A touch switch apparatus for detecting the presence of an object such as a human appendage, the apparatus having a touch pad and a local control circuit connected to the touch pad and to a controlled device. The touch pad preferable includes a first electrode and a second electrode spaced from and surrounding the first electrode. The control circuit is preferably in integrated circuit form. A signal is provided to the touch pad to generate an electric field thereabout. Introduction of a stimulus near the touch pad disturbs the electric field. The control circuit detects the electric field disturbance in and generates a control signal in response.

Abstract: A leak current is prevented from flowing during a power off state in a power supply unit having a remote power on/off function by using the momentary switch. In a state of power off, i.e. a state in which a switch SW2 is turned off, power is not applied to a latch circuit 30, and hence power is not consumed. A switch drive circuit 40 does not consume power. When a user depresses a momentary switch SW1 during a state that the switch SW2 is turned off, the switch drive circuit 40 turns the switch SW2 on. As a result, the latch circuit 30 can receive a drive voltage VCC from a node located down stream of the switch SW2, so that it can store or latch the turn on state of the momentary switch SW1. After that, when the user releases the momentary switch SW1, it returns to an original position and operation of the switch drive circuit 40 which turns the switch SW2 on is terminated.

Abstract: An optical intrusion detection system includes an electromagnetic radiation detector located within the chassis of a personal computer or the like. The EM detector, such as a photodiode or phototransistor, detects EM radiation when the chassis is opened (allowing a person to modify or remove the contents thereof). The EM detector sends a detection signal to a latching mechanism that latches the signal and maintains the signal even after the chassis is closed. A detection component is provided which supplies the detection signal as a data signal to a network administrator terminal coupled to the personal computer where the optical intrusion detection system is installed. A feature of the detection system of the present invention is that intrusion into the chassis is detected silently and without alerting the individual opening the chassis.

Abstract: A corner light switch assembly to be mounted against a corner edge of a wall corner at a predetermined location and vertical height. The corner light switch assembly includes 1) a main switch body; 2) a switch body cover plate of L-shape constructed of a transparent plastic material connected to the main switch body; 3) a touch sensitive switch assembly mounted in the main switch body and engageable with the switch body cover plate; and 4) a power supply cord to connect an appliance, table lamp or light fixture to the touch sensitive switch assembly for selective operation thereof The switch body cover plate has a sensor section with a plurality of sensor openings therein. The touch sensitive switch assembly includes a touch plate sensor connected to a touch sensitive switch circuit. The touch plate sensor is placed within one of the sensor openings in the sensor section of the switch body cover plate and having the touch plate sensor mounted therein.

Abstract: A first connection terminal for main power supply 15 and a first connection terminal for signal 16 are disposed in a female connector housing 14. A second connection terminal for main power supply 18 and a second connection terminal for signal 19 are disposed in a male connector housing 17. As the female and male connector housings 14, 17 are fitted to each other, the first connection terminal for main power supply 15 makes contact with the second connection terminal for main power supply 18 before the first connection terminal for signal 16 makes contact with the second connection terminal for signal 19. As the female and male connector housings 14, 17 are disengaged from each other, the first connection terminal for signal 16 breaks contact with the second connection terminal for signal 19 before the first connection terminal for main power supply 15 breaks contact with the second connection terminal for main power supply 18.

Abstract: An interface circuit permits a customer who receives two-phase service from an electrical utility company to use power from an on-site source instead of or in addition to the utility company's power. Several embodiments are disclosed, in some of which the interface circuit automatically disconnects the utility company's power lines if the utility's power is lost and connects the on-site power source. The interface circuit may be installed in whole or in part in a meter collar which fits between an electric meter and the meter socket box that the meter would otherwise plug into.

Abstract: Systems and methods for diagnosing and treating tissue transmit an electrical energy pulse that temporarily stuns a zone of tissue, temporarily rendering it electrically unresponsive. The systems and methods sense an electrophysiological effect due to the transmitted pulse. The systems and methods alter an electrophysiological property of tissue in or near the zone based, at least in part, upon the sensed electrophysiological effect. The alteration of the electrophysiological property can be accomplished, for example, by tissue ablation or by the administration of medication. In a preferred implementation, radio frequency energy is used to both temporarily stun tissue and to ablate tissue through a common electrode.

Abstract: A system (10) for detecting the state of a switch device (60) includes a driver circuit (40) having an output (42) operative to provide a driver output signal. An indicator (44) is electrically connected between the driver circuit (40) and the switch device (60). The indicator (44) is activated in response to the driver output signal and upon the switch device (60) being in a first state. A monitoring circuit (70), which is responsive to the switch device (60) through the indicator (44), is electrically connected to a node (64) between the indicator (44) and the driver circuit (40). The monitoring circuit (70) is operative to provide a first signal in response to the switch device (60) being in the first state and a second signal in response to the switch device (60) being in a second state. The monitoring circuit (70) controls energization of a controller (28) so as to power the controller (28) when the switch device (60) is in the first state.

Abstract: An electronic circuit for controlling voltage signals at particular critical nodes of an electronic device connected to the circuit, said circuit being inserted between a supply voltage reference and a ground voltage reference, and having at least one internal reference node connected to the critical nodes, and including at least one capacitive element inserted between the supply voltage reference and the ground voltage reference, and connected to the internal reference node through a charging device, said capacitive element being charged with the supply voltage reference to maintain, at the internal reference node, a voltage value above a predetermined threshold voltage as the supply voltage reference is cut off.

Abstract: The present invention relates to a power supply control module for loads or motors, which is mounted as an addition under a main electromagnetic switch appliance (Ap) and having, in a casing (1), current paths with commutating poles controlled by an electromagnet control device and substantially characterized by the fact that it includes at the rear, means (21, 22, 23, 31, 32) capable of channelling gases flowing out of the breaker chambers of the main appliance (Ap).

Abstract: A switchgear cabinet monitoring arrangement with a central control arrangement for monitoring, controlling and/or regulating switchgear cabinet functions, and having a base device with inputs and outputs, in which monitoring and control components and a voltage supply device are arranged. Adaptation to different requirements is achieved because the base device has several function card insertion slots. Several function cards with different monitoring, control, regulation and/or switching functions are provided with an appropriate identification and for selective insertion in the function card insertion slots. An identification device determines which function card insertion slots (2.1, . . . 2N) are occupied and of what type is the possibly inserted function card.