Abstract: A machine frame for a machine tool is disclosed having two longitudinal members running in a first direction and two transverse members connecting the longitudinal members and running in a second direction running transversely to the first direction, wherein the longitudinal members and the transverse members define a machining space for the machine tool, at least two, preferably at least four, first floor fastening units for the predominant transmission of forces in the first direction into a foundation, wherein the first floor fastening units are fastened to end regions of the longitudinal members, and at least two second floor fastening units for the predominant transmission of forces in the second direction into the foundation, wherein the second floor fastening units are fastened to at least one of the longitudinal members in its central region, wherein the at least one of the longitudinal members has a cross-sectional geometry for the predominant force transfer in the second direction.

Abstract: A method for transferring electrical power in the sea includes generating AC power, guiding, at least partially underwater, the AC power through a cable from a first end of the cable to a second end of the cable, and changing a frequency of the AC power guided through the cable based on a value of power consumption of a load connected to the second end of the cable.

Abstract: An electric switching device for an electric circuit, including at least one electric phase having at least one circuit breaking unit associated with a disconnector unit. The circuit breaker unit including a circuit breaker movable contact configured to be actuated between a closed position and an open position with respect to a corresponding circuit breaker fixed contact. The disconnector unit includes at least one disconnector movable contact configured to be actuated between a connection position and a disconnection position with respect to a corresponding disconnector fixed contact. A casing that includes an insulating shell coupled to a metal shell. The casing houses at least the circuit breaker unit and the associated disconnector unit of said at least one electric phase.

Abstract: A converter building including at least one room having a solid room wall enclosing an interior space and an electrical active part contained in the interior space, the room wall having at least one opening, which is designed such that it allows a human to enter the interior space. The opening is sealable, the room wall encloses the interior space in a gas-tight manner when the opening is sealed, and the interior space contains a dielectric insulation medium including a dielectric insulation component other than air.

Abstract: An organic light emitting display panel includes a substrate, an organic light emitting diode disposed on a first side of the substrate, and a first light scattering layer disposed on a second side of the substrate opposite to the first side of the substrate, where the first light scattering layer includes a transparent thin layer including an indium, and a plurality of first micro-lenses is disposed on a plasma-treated side of the first light scattering layer.

Abstract: A transformer station for high and medium voltages is installed beneath the earth's surface, with at least one access point to the switchgear assembly and the ventilation shafts being arranged above ground. The station includes at least one power transformer for converting high voltage to medium voltage, at least one medium-voltage switchgear assembly and auxiliary and secondary as well as protection and control devices, and at least one access or transport shaft configured for transporting all large equipment and operating means into the station and can be used as an exhaust air shaft. The access or transport shaft has ventilation channels and a movable closure element. A base surface for placing the operating means and power transformers is provided beneath the access shaft. The power transformers can be inserted into boxes, which may be adjacent to one another, once the power transformers have been placed on the base surface.

Abstract: A system having electrical equipment integrated on a structure is provided. The system includes at least one electrical equipment located at a spaced apart relationship and mounted on at least one structure. A method is provided for isolation of electrical equipment. The method includes opening and closing a contact by engaging or disengaging one or more terminals of the electrical equipment correspondingly with a supply line or a distribution line by a mechanism for isolation. The mechanism can be a handle or a moving mechanism which is associated with a movement in a vertical direction or horizontal direction or with a movement that provides isolation.

Abstract: An enclosure for electrical equipment is provided. The enclosure includes a frame, a first plate, and a first member coupled to the frame and configured to receive the first plate. The first plate is configured to receive a transformer, movable between a first position and a second position, at least partially supported by the first member when the first plate is in the first position, and offset from the first member when the first plate is in the second position.

Abstract: A modular substation feeder assembly comprising a substantially rigid and collapsible support frame is presented. In particular, the support frame of the present invention comprises a plurality of at least two members disposed in a movable or removable relation to one another and structured to dispose the support frame between the collapsed position and into the operative expanded position. The feeder assembly comprises a support stand cooperatively structured to support or house a recloser or circuit breaker. When the support frame is disposed in the collapsed position, the support stand is oriented at least partially within a internal clearance zone which is defined as an area free of electrical components, including insulators, cross bars, etc.

Abstract: A system for coupling electrical power subsea. The system comprises a subsea electrical distribution system having at least one modular circuit breaker assembly. The modular circuit breaker assembly may receive power from one or both of a subsea AC power cable and a subsea DC power cable. If power is lost from one subsea power cable, the modular circuit breaker assembly enables power to be provided to subsea loads from the other subsea power cable. The system comprises a subsea motor operable to drive a subsea pump or compressor.

Abstract: An energy storage system comprising at least one energy storage module adapted to supply electrical energy to a hybrid vehicle. The energy storage module comprises an enclosure, at least one battery array located within the enclosure, and an energy storage controller module located within the enclosure and electrically connected to the battery array. A high voltage junction box is attached to a first end of the enclosure and having a plurality of high voltage connection terminals connected by a plug-in bussed electrical center configured to reduce the possibility of unintentional grounding or shorting, and decreases the safety risk to a technician during servicing. At least one of the high voltage connection terminals is configured to receive a high voltage conductor connected between the energy storage module and an inverter of the hybrid vehicle.

Abstract: An apparatus and method for continuously monitoring substation disconnects and transmission line switches to detect improper closing of the disconnects or switches is disclosed. The method includes the step of providing an apparatus adapted to measure, process, and transmit data associated with a disconnect or switch. The method further includes the steps of positioning the apparatus on or in close proximity to the disconnect or switch, using the apparatus to collect data of the disconnect or switch and processing the data for transmission to a remote receiver, and transmitting the processed data to a remote receiver.

Abstract: A gas insulated switchgear is configured including phase-A, phase-B, and phase-C breaker units. For example, the phase-A breaker unit includes breakers connected in series in a horizontal first direction, disconnectors annexed on the breaker, disconnectors annexed on a breaker, and disconnectors annexed on a breaker. The disconnector is connected to a main bus that extends in the first direction, and the disconnector is connected to a main bus that extends in the first direction. Each of the disconnectors on the breakers is arranged while a longitudinal direction thereof is set to a second direction orthogonal to the first direction so that a switching direction of the disconnector is equal to the second direction. Thereby, the length of the main buses can be shortened, and an interphase distance and a breaker-to-breaker distance can be reduced.

Abstract: A system and method for coupling electrical power subsea. The system comprises a subsea electrical distribution system having at least one subsea circuit breaker assembly. The subsea circuit breaker assembly comprises a modular subsea busbar assembly configured to receive a plurality of modular cubsea circuit breaker assemblies and at least one modular subsea circuit breaker assembly secured to the modular subsea busbar assembly. The modular subsea circuit breaker assemblies may be coupled by subsea power cables to a source or power, an electrical load, or other subsea circuit breaker assemblies.

Abstract: A system and method for coupling electrical power subsea. The system comprises a subsea penetrator to seal an opening around a conductor extending through a partition or enclosure. The subsea penetrator comprises an integral current sensor operable to produce a signal representative of current through the conductor. The penetrator comprises a boot configured to seal the opening through which the conductor extends. The current sensor may be disposed within the boot.

Abstract: A system and method for coupling electrical power subsea. The system comprises a subsea electrical distribution system having at least one modular circuit breaker assembly. The modular circuit breaker assembly is controlled by a control system that has a plurality of circuit breaker controls. Each circuit breaker is operable to be controlled by a plurality of circuit breaker controls and each circuit breaker control is operable to control a plurality of circuit breakers. Therefore, control of each circuit breaker is maintained even if one circuit breaker control fails.

Abstract: A weatherproof box enclosure adapted to be secured on one of an outside wall and roof location of a multi-tenant building structure supporting roof-mounted solar panel or wind turbine generators including a multiple pole control unit receiving and distributing received alternating current voltages from the generators, which is disengagable by a normally open override switch when supplied voltages fall below a predetermined level, when servicing of the components of the safety box enclosure is to be had, and automatically in the event of an emergency as representative of a closing of the override switch by a ground level control.

Abstract: According to one embodiment, a note PC has a disk drive connected to a system board via a connector. A power receive coil is attached to the disk drive. Power produced by the power receive coil as a result of excitation of a power feed coil is fed to a power supply control circuit via an unused pin of the connector.

Abstract: There is disclosed an apparatus including a chassis configured to accept a plurality of blades. The chassis may contain a backplane assembly may include a backplane bus bar configured to provide electrical power to the plurality of blades and a power supply configured to deliver electrical power through a power delivery bus bar. A clamp may be disposed to force the power delivery bus bar into electrical contact with the backplane bus bar.

Abstract: A filter for an HVDC system. The filter includes a capacitor and a reactor arranged in an indoor location having a first space for erecting filter components. The first space includes a high voltage area and a low voltage area defining a first electric potential direction.

Abstract: A switchgear for a ground distribution line includes a base frame, vacuum switch units each installed on the base frame and configured by laying a first vacuum interrupter and a second vacuum interrupter within an epoxy resin mold, the first vacuum interrupter opening or closing a main circuit between a power source side and a load side and the second vacuum interrupter opening or closing a ground circuit, a main circuit interface protruding from one side of each vacuum switch unit, and a phase connector interface protruding from the other side of each vacuum switch unit in the same direction as the main circuit interface.

Abstract: In accordance with the present disclosure, a system and method for structural power distribution in a modular data center. In particular, the present application describes a modular data center with a modular structural frame. The modular structural frame defines an enclosure, and a plurality of information handling systems may be located in the enclosure. The modular data center may also include a power distribution pathway that is at least partially disposed within the modular structural frame of the modular data center. The modular data center may also include a plurality of power distribution elements disposed within the power distribution pathway, which power the information handling systems located in the enclosure.

Abstract: A modular substation feeder assembly comprising a substantially rigid and collapsible support frame is presented. In particular, the support frame of the present invention comprises a plurality of at least two members disposed in a movable or removable relation to one another and structured to dispose the support frame between the collapsed position and into the operative expanded position. The feeder assembly comprises a support stand cooperatively structured to support or house a recloser or circuit breaker. When the support frame is disposed in the collapsed position, the support stand is oriented at least partially within a internal clearance zone which is defined as an area free of electrical components, including insulators, cross bars, etc.

Abstract: A vacuum insulated switchgear is arranged as a panel for a power substation with the other or the others in parallel rows. the vacuum insulated switchgear comprises a housing with a switch section, a bus section, a cable section, and a control section which are partitioned by earthed metal plates respectively. The vacuum insulated switchgear comprises: a connection member provided in each bus connecting part in the bus section of the each panel and enabling each bus to be connected and disconnected; and a bus recovery member which is detachably connected between the connection members of faultless panels adjacent to a faulty panel when the faulty panel occurred.

Abstract: A weatherproof box enclosure adapted to be secured on one of an outside wall and roof location of a multi-tenant building structure supporting roof-mounted solar panel or wind turbine generators including a multiple pole control unit receiving and distributing received alternating current voltages from the generators, which is disengagable by a normally open override switch when supplied voltages fall below a predetermined level, when servicing of the components of the safety box enclosure is to be had, and automatically in the event of an emergency as representative of a closing of the override switch by a ground level control.

Abstract: It is an object to provide gas-insulated switchgear that occupies less installation space, in which the number of bellows to be used can be reduced, and that can minimize a work range in disassembling at addition or accident, and in reassembling. In double-bus gas-insulated switchgear in which a bus-side device is arranged above a breaker to reduce installation space to be occupied, a bellows is arranged between bus-side devices arranged vertically to each other, and under a support frame of the breaker, another support frame that can be separated therefrom is arranged, thereby enabling disassembling of a lower bus-side device alone.

Abstract: An arrangement related to subsea electric power distributing AC-system and adapted for a subsea application. The arrangement is enclosed in a watertight casing. The casing exposes a main power input connection, adapted for watertight co-ordination with a first subsea cable and a main power output connection, adapted for a watertight co-ordination with a second subsea cable. The second subsea cable is adapted for a power supply to an AC-current and AC-voltage adapted device. The arrangement includes interconnected: a voltage regulator connected to the first cable, and a NO-load switching unit connected to the second cable, and a control unit. The control unit is adapted, in a first operative mode, to regulate the output AC-voltage from the voltage regulator towards and to zero, or at least almost to zero, and in a second subsequent operative mode, to bring the NO-load switching unit from an ON-position to an OFF-position or vice versa.

Abstract: A method for operating a sealed for life compact secondary substation including a transformer, a high voltage side and a ring main unit arranged at the high voltage side and connected to a primary side of a the transformer, a secondary side of the transformer is connected a low voltage switch gear. An enclosure includes watertight material capable of withstanding corrosion at least for a life time of the compact secondary substation. The compact secondary substation is cooled with a cooling system that includes a heat exchanger. The compact secondary substation is protected with an extended arc eliminator. The compact secondary sub-station is connected to a remote control for surveillance and operation, which remote control is communicating with a fault protection equipment.

Abstract: A premises power source accessory panel for an outdoor unit, a method of adapting an outdoor unit with a premises power source accessory panel and an outdoor unit incorporating the panel or the method. In one embodiment, the panel includes: (1) a bracket having at least one electrical conduit aperture and (2) a circuit protection element mounted to the bracket and configured to be coupled to a premises power source, the bracket removably couplable to the outdoor unit in lieu of a conventional electrical conduit panel.

Abstract: The invention relates to a device for supplying power to equipment disposed in a space, with varying requirements for the power supply, comprising a main distributor which can be connected to a mains electricity supply and which is provided with a fuse, and at least one sub-distributor which is connected to the main distributor by means of a breakable connection, which sub-distributor is provided with equipment sockets for the connection of equipment.

Abstract: Switchgear having a vacuum-insulated switchgear 2 comprising switches having at least breaking and disconnecting functions, each placed in a unit, and solid-insulated bus bars 12 for electrically connecting the switches in each unit; an air-insulated switchgear 1 comprising switches having at least breaking and disconnecting functions, each placed in a unit, and air-insulated bus bars for electrically connecting the switches in each unit; and_the vacuum-insulated switchgear 2 and the air-insulated switchgear 1 are installed side-by-side, wherein the vacuum-insulated switchgear 2 and the air-insulated switchgear 1 are electrically connected through flexible conductors 17 which are provided between the solid-insulated bus bars 12 and the air-insulated bus bars.

Abstract: Power-generating units and compressor units are arranged in a compressed-air energy storage power station. According to one aspect of the invention, a common grid connection transformer is arranged, to which the power-generating units and the compressor units can selectively be connected. According to a further aspect of the invention, the power-station installation is subdivided into a power-generating area (I) in which the power-generating units are arranged, a switching and voltage-conversion area (II) in which a grid connection transformer is arranged, and a compressor area (III) in which the compressor units are arranged. The stated areas are arranged physically separately from one another. Power-station installations according to the invention can advantageously be combined to form modular power-station centers, which advantageously have common voltage rails and media rails.

Abstract: The invention relates to a special urban transformation center comprising a concrete support body (1) on which a cabinet made of sheet metal and vinyl ester (2) is placed and eyebolts (4) for placement thereof, which are located in the upper part. The plates (15) have locating elements for the low voltage and remote control panels. A base is also provided for leveling the steel outer structure. It also comprises an internal/external skeleton reinforced with crossbeams and four columns (20). The invention also has a polyester closing cover (6).

Abstract: An electrical power distribution unit can include a power distribution unit enclosure, a power input associated with the power distribution unit enclosure, and a plurality of power outputs associated with the power distribution unit enclosure. At least certain power outputs can be connectable to one or more electrical loads external to the power distribution unit enclosure and to the power input. In some embodiments, an intelligent power section can communicate with at least one of the power outputs and can connect to a communications network external to the power distribution unit enclosure.

Abstract: A power control system includes a base having a housing configured for releasably receiving a control unit and a cavity within the housing for receiving a solid state relay having a hockey puck configuration. The base includes an input power terminal for coupling to an input power source, an output power terminal for coupling to a power receiving load, and coupling fixtures for fixedly and electrically coupling to input and output power terminals and control terminals of the received solid state relay. A control unit is configured to control the solid state relay for selectively providing, at least a portion of, the power received at the input power terminal to the output power terminal. The control unit has a housing adapted to be releasably coupled to the base housing. The control unit and base each configured to electrically couple the control unit to the control terminals of the received solid state relay as a function of the control unit being coupled to the base.

Abstract: In a one-and-a-half circuit breaker system gas-insulated switchgear assembly for three-phase AC transmission, the circuit breakers are located on a common horizontal floor directed in Y direction. First main bus bars extending in X direction are located above the first circuit breakers. The positions of the first main bus bars in different phases are different from one another only in height. Similarly, the second main bus bars extending in X direction are located above the third circuit breakers. Each phase of the main bus bars and disconnecting switches is located in a common horizontal plane. The heights are different for different phases. Relative locations of the disconnecting switches are substantially common for every phase horizontally, but are shifted in the X direction.

Abstract: The invention relates to an electrical substation. The inventive substation is characterised in that it consists of a special ring-type electrical configuration, known as a network ring, comprising SF6-insulated armoured modules M by way of a high-voltage switchgear. According to the invention, the modules are disposed such as to form longitudinally-linked squares, with a segregated phase arrangement. Owing to the ring configuration A, the use of armoured modules M and the segregated phase arrangement, it is possible to produce standardised base elements which are tested before being moved to the site of the substation in order to be connected to other elements and/or existing equipment with the same configuration or another standard configuration. In this way, a substation can be mounted and enlarged without the need for discharges or service interruptions and with a minimum loss of time in terms of mounting, repair and enlarging operations.

Abstract: An arrangement related to subsea electric power distributing AC-system and adapted for a subsea application. The arrangement is enclosed in a watertight casing. The casing exposes a main power input connection, adapted for watertight co-ordination with a first subsea cable and a main power output connection, adapted for a watertight co-ordination with a second subsea cable. The second subsea cable is adapted for a power supply to an AC-current and AC-voltage adapted device. The arrangement includes interconnected: a voltage regulator connected to the first cable, and a NO-load switching unit connected to the second cable, and a control unit. The control unit is adapted, in a first operative mode, to regulate the output AC-voltage from the voltage regulator towards and to zero, or at least almost to zero, and in a second subsequent operative mode, to bring the NO-load switching unit from an ON-position to an OFF-position or vice versa.

Abstract: A vacuum switchgear system, which comprises a plurality of vacuum switchgears each comprising a vacuum container for accommodating the desired number of vacuum switches selected from a disconnecting switch or load break switch, an earth switch and an vacuum circuit breaker. Each of the vacuum switches has connecting terminals. The switchgears constitute different types of switchgears, the switchgears being classified into the power receiving side and power distribution side. The switchgears are connected with the adjoining switchgear or an element selected from an arrester and a PCT by means of an insulated connecting conductor having terminals around both ends thereof. The terminals are electrically connectable with and detachable from the connecting terminals of the switchgears.

Abstract: An electrical joint assembly for connecting a plurality of conductors includes a busbar hub and a plurality of limiter modules. The busbar hub includes an electrically conductive busbar body and a plurality of conductor legs extending from the busbar body. The limiter modules each include a fuse element. Each of the limiter modules is connected to a respective one of the conductor legs and is connectable to a respective conductor to provide a fuse controlled connection between the respective conductor leg and the respective conductor. Each of the limiter modules is independently removable from the respective one of the conductor legs.

Abstract: A motor control center (MCC) is provided. The MCC includes a power and data distribution bus comprising a plurality of conductive bars for distributing power and data signals within the MCC. In one embodiment, the plurality of conductive bars is configured to receive and distribute three-phase power from an external power source. The MCC may also include a device configured to receive power and data from the plurality of conductive bars. Devices and methods for distributing power and data to such devices within an MCC are also disclosed.

Abstract: A method and apparatus for protecting electrical power transmissions systems that may or may not be energized. A protector and method for protecting a component of an electrical power transmission system. A dielectric cover is molded to fit around the component. The dielectric cover has a peripheral edge including portions with cooperating mating surfaces that, in use, mate together to secure the dielectric cover on the component. A grip portion, for example the mating surfaces, of the dielectric cover is preferably shaped to receive a hot stick. The dielectric cover may be provided with ventilation openings, and a friction enhancing interior surface, such as a weak adhesive on an interior surface of the dielectric cover.

Abstract: The substation has at least one outdoor busbar (11, 12) as well as at least two switch bays which can be connected to the busbar and at least one encapsulated, gas-insulated, arrangement of switchgear modules (30) which is arranged in one of the switch bays. This switchgear arrangement contains at least one disconnector module (DS) and at least one circuit breaker module (CB). An installation module (MM) is arranged between the disconnector module and the circuit breaker module and allows lateral removal of at least one of the two switchgear modules (DS, CB). This substation is distinguished by high availability, since each of the most severely loaded components of the encapsulated switchgear arrangement, that is to say the disconnector module and the circuit breaker module, can be removed from the substation by lateral removal without having to change the position of the other components.

Abstract: The high-voltage metal-clad substation element comprises at least one circuit-breaker connected electrically and mechanically to at least one set of busbars (3, 4) extending along an axis (D) that extends transversely to the longitudinal axis (AX) of the circuit-breaker. The metal case (1) is fixed to the ground via a hinge which allows the case to tilt slightly when said set of busbars (3, 4) expands along said transverse axis (D). This configuration makes it possible to omit or to reduce the use of axial bellows on the set of busbars, thereby reducing the cost of manufacturing the metal-clad substation. Advantageously, in association with the hinge, the metal case is designed to have some flexibility to reduce mechanical stresses when the set of busbars expands.

Abstract: The invention is to create a n arrangement for controlling and monitoring a switching installation which can be produced in a relatively cost-effective manner. To this end, the arrangement comprises a station control computer system into which the functions of at least one process control appliance and at least on protective appliance are integrated. Furthermore, the arrangement also comprises devices used to digitally control switches of the switching installation and comprising digital inputs and outputs, and an electronic conversion system arranged close to the switches and provided with digital outputs. The digital inputs and outputs of the devices for digital control and the digital outputs of the electronic conversation system are directly connected to the station control computer device by means of communication connections.

Abstract: A transformer is formed by a housing having a main transformer compartment, a first compartment for the input terminals for the main power supply, a second compartment for the output terminals to supply the load and a third compartment for a manually operable switching unit, where each of the compartments is maintained separately from each of the others and each has a manually openable interlocked cover which can be opened to provide access to an interior of the respective compartment. The switch assembly has switch contacts mounted within a switch container located within the third compartment and a manually operable member mounted one on side wall located within the third compartment outside the switch container for moving the switch contacts between open and closed positions. The switch container has a transparent window in a wall thereof through which the contacts can be observed and an insulating liquid bath maintained separate from an insulating liquid bath for the transformer assembly.

Abstract: A hybrid gas-insulated switchgear constitutes an electrical circuit for a single-line diagram unit by arranging one first standardized module and two second standardized modules in a single row such that the central axes of tanks are generally aligned and electrically connecting them to each other. In the standardized modules, a circuit breaker and disconnecting switches are housed inside the tanks such that the disconnecting switches are positioned at first and second ends of the circuit breaker so as to line up generally in a straight line, and grounding switches are connected between the circuit breaker and the disconnecting switches.

Abstract: Disclosed is a private branch exchange (PBX) that offers high efficiency in wiring cables, at the same time, protects cables in highly safety manner. The PBX includes a PBX section and a casing that covers and holds the PBX section. The casing contains an inner-bottom plate, a support column, and a pedestal. Cables for connections with external circuitry can be connected to the PBX section on the front side of the interior of the casing. The inner-bottom plate holds the bottom of the portion of the casing on which the PBX section is accommodated. The support column is disposed on the lower surface of the inner-bottom plate. Disposed beneath the support column, the pedestal holds the entire of the casing. The support column has a curved surface on the front side, protecting cables wired between the inner-bottom plate and the pedestal.

Abstract: In order to provide a converter station for a high-voltage DC connection between two three-phase AC voltage networks, having a converter building which has a number of floors, and in which transformer units, converter devices, filter units, a gas-insulated switchgear assembly with feeder units, at least one cooling system, a DC cable pot head for electrical connection of a high-voltage cable carrying direct current, a smoothing reactor and gas-insulated busbars for electrical connection of these components are arranged, while maintaining its compact design and the arrangement of its components in a closed building, whose cost is low and which has a physically simple design, the invention proposes that the DC cable pot head and the smoothing reactor are arranged on the same floor as the converter valves and are electrically connected to one another via an air-insulated connecting device, with an air-insulated isolating switch being provided in order to produce an isolating gap between the DC cable pot head and

Abstract: The present invention relates to a system for protecting and controlling main-circuit components of an electricity transmission substation. The system includes devices for digital data output, protection-and-controlling, component controlling-and-monitoring, and communication. The digital data output devices input analogue AC electric values and output digital data. The protection-and-controlling devices input the data from the digital data output devices, and further control, monitor, and protect the substation main-circuit components. The component controlling-and-monitoring devices receive commands from the protection-and-controlling devices or from the substation controlling-and-monitoring equipment, and further control and monitor the substation main-circuit components. The devices for digital data output, the protection-and-controlling, and component controlling-and-monitoring are disposed near or within their corresponding substation main-circuit components.