Abstract: A hermetic portion on the side of a main body portion of a gas insulated switchgear and a hermetic portion of a bushing tank which has polymer bushings connected to the main body portion are configured separately, and electrical connection between the main body portion side and the bushing tank is carried out in an open portion. A mid tank is provided in the rear of the main body portion in which a switching apparatus is housed, and conductor portions which are horizontally led out from the main body portion are led into the mid tank, bent upward, and connected to bushings on the top of the mid tank. Cables are extended downward from the bottom of the bushing tank disposed above the mid tank via a support panel, and in the open portion, the cables are connected to the bushings.

Abstract: A compact auxiliary connector can include two bushings each with an electrical connector(s), and a tubing connected between the two bushings to insulate an electrical cable, which is connected between electrical connectors of the two bushings. The electrical connector of each of the two bushings can be connected to an electrical device, a line or load bus or a combination thereof, according to the desired connection configuration. Each bushing may also include a flexible joint cover, such as a boot, to cover the connection of the bushing connectors to a bus, such as a primary bus. The compact auxiliary connector can manage live connections between auxiliary or other device(s) and line/load buses in a switchgear cabinet of a switchgear assembly. The bushings, tubing and flexible joint cover can be formed of insulating materials having desired dielectric strength according to the voltage applications.

Abstract: A multi-function cabinet housing electrical equipment. The multi-function cabinet has four compartments. Each compartment is configured to house a different type of electrical equipment. The electrical equipment may be high-voltage electrical metering and distribution components, high-voltage control electronics, battery backup, wireways, low-voltage electronics, or a combination thereof. The multi-function cabinet contains wireways. The compartments of the multifunction cabinet are accessible using doors, which are fastened by locks. The cabinet contains a ventilation system with fans, vents, and filters.

Abstract: A switching device includes a number of line sections corresponding to a number of phases, each including a first and a second connection part, for connection to a connection phase of an electrical consumer. At least one controllable semiconductor switching element is provided per phase, wired between the first and second connection part. A bypass unit includes one controllable electromechanical switching element with a low on-resistance per phase. The controllable electromechanical switching element is wired, in parallel with the controllable semiconductor switching element of this phase, between the first and second connection part. The first and second connection part of a respective phase are arranged adjacently on one side of the power module in spatial proximity in a direction of extent. A contact bridge, assigned to a respective phase, runs in the direction of extent in order to electrically connect the first and second connection part in the switched-on state.

Abstract: An intelligent electronic device (IED) is provided. The IED includes a metering sub-assembly and an input base module sub-assembly. The metering sub-assembly is hinged to the input base module sub-assembly, where when in an open position, various cables, connectors, and input/output cards/modules are accessible. Various input/output cards/modules are interchangeable to add/change functionality and/or communication capabilities to the IED.

Abstract: A battery pack including a battery cell having an electrode assembly of a cathode/separator/anode structure mounted in a battery case together with an electrolyte in a sealed state, and a protection circuit module (PCM) electrically connected to the battery cell. The PCM includes a protection circuit board (PCB) electrically connected to the battery cell, the PCB being provided on a region where a circuit is connected with a conductive pattern including a fusing part, having relatively high resistance, configured to fuse itself for interrupting the flow of current when a large amount of current is conducted.

Abstract: A spout assembly is provided. The spout assembly includes a spout and a spout base. The spout base has a cross-sectional area that is smaller than a spout sized to enclose an electrical switching apparatus electrical coupling. That is, the spout base includes a CT support surface with a cross-sectional area that is smaller than the spout cross-sectional area. Current transformers are disposed upon the spout base CT support surface.

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 transformer assembly is described. Embodiments of the transformer assembly are adapted to facile disconnection and removal of a transformer from the transformer assembly without disconnecting service lines from the transformer assembly. Moreover, embodiments of the transformer assembly are adapted to de-energize the transformer without interrupting primary power to downstream devices, and to safely and easily park energized or de-energized connectors such as loadbreak elbows during transformer maintenance. Methods of using the transformer assembly are also described.

Abstract: The invention relates to a power switch cabinet of a device for producing electric energy. The technical object of obtaining optimum scalability and cooling of a power switch cabinet despite little space being required is achieved according to the invention in that the power switch cabinet has a machine connection, a power module and a mains connection, wherein the power module has a machine converter, a mains converter, a direct voltage intermediate circuit and a chopper, and the arrangement of the components substantially corresponds to the direction of the power flow.

Abstract: A high-voltage transformer module includes a transformer core including at least one winding, and a mechanical supporting structure having the transformer core integrated permanently therein. The mechanical supporting structure has corner points arranged in the form of a right-parallelepiped. The corner points are in the form of load transfer points and are arranged corresponding to the dimensions of a CSC (International Convention for Safe Containers) container.

Abstract: A spout assembly is provided. The spout assembly includes a spout and a spout base. The spout base has a cross-sectional area that is smaller than a spout sized to enclose an electrical switching apparatus electrical coupling. That is, the spout base includes a CT support surface with a cross-sectional area that is smaller than the spout cross-sectional area. Current transformers are disposed upon the spout base CT support surface.

Abstract: A GIS (Gas Insulated Switchgear) includes a main bus compartment including a main bus-bar unit, a transfer bus compartment including a transfer bus-bar unit, a sealed circuit breaker compartment including a circuit breaker unit and a load side compartment including a current transforming unit and a transfer bus conductor electrically coupling the transfer bus-bar unit and the current transformer unit. The circuit breaker unit is contained in the sealed circuit breaker compartment being separately independent from other compartments. The transfer bus conductor passes from the transfer bus-bar unit through the load side compartment to the current transformer unit without passing through the circuit breaker compartment. The sealed circuit breaker compartment and the load side compartment do not share insulating gas.

Abstract: The size of a status indicator for monitoring a current in a power cable is reduced by integrating a bobbin for the secondary winding with a current transformer core and integrating a circuit board including output terminals with a current transformer assembly.

Abstract: A resistor for suppressing magnetizing inrush current includes a container made of an insulating material and at least one resistive element housed in the container, the resistive element being connected to two bushings provided at the container, the outer surface of the container being coated with a conductive paint, and the paint being connected to the ground, thereby being able to be located between a cable and a switch, and being able to fix the outer surface thereof to a ground voltage level so that human contact safety is not impaired.

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: Arc resistant enclosures for dry-type transformers. More particularly, transformer enclosures having one or more arc-resistant features, including arc channels, arc fault dampers, and arc fault plenums, and methods for providing same.

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: A metal clad switchgear assembly comprising multiple compartments defined within an electrical enclosure is provided. The compartments interchangeably accommodate electrical components, for example, current transformers, a circuit breaker, a control power transformer, an epoxy encapsulated potential transformer, etc., electrical cables, and bus bars in predetermined positions for allowing front access and/or rear access to them. One or more compartments are configured for enabling the electrical cables to enter into and/or exit out from the electrical enclosure for allowing front and/or rear access to the electrical cables. A mounting block assembly is positioned in one or more of the compartments for mounting, enclosing, and providing front access to the electrical components.

Abstract: The invention relates to a gas-insulated high-voltage switchgear, comprising at least one bus bar with three phase conductors, whereby each phase conductor is connected to the input of a respectively provided bus bar section. The phase conductor and the bus bar section are arranged in a three-phase bus bar module with three single-phase power switches, each arranged in a separate power switch housing and each bus bar section is connected at the output therefrom to a respectively provided power switch.

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: A structure for transmission in a power supply, particularly to a power structure for transmission for bearing large DC current, wherein the power supply includes a power input port for connecting to DC input power and a DC/DC conversion circuit for converting the DC input power into DC output power. The architecture including at least one power transmission board for disposing the power input port, wherein the power transmission board is electrically connected to the power process board with the DC/DC conversion circuit mounted thereon by at least one power conduction element. Therefore, through the power conduction elements replacing the conventional connecting wires with large diameter to connect the power input port and the power process board without disobeying the safety regulation, not only the space occupied by the bent connection wires can be reduced, but the collisions and damage to other components caused therefrom also can be avoided.

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: A network unit includes an enclosure having first and second compartments, plural input terminals, and a primary switch having an input and an output, the input being electrically connected to the input terminals. The output of the primary switch is electrically connected to the input of a network transformer. A network protector includes an input, an output and a circuit breaker electrically connected between the input and the output of the network protector. The network protector input is electrically connected to the network transformer output. Plural circuit protection devices are electrically connected between the network protector output and plural output terminals. The circuit breaker is substantially enclosed by the second compartment. The network transformer, the primary switch and part of the network protector are enclosed by the first compartment.

Abstract: A solid insulated bus switchgear including a cabinet having unit and bus rooms, first and second switching units, each having a circuit breaker, current transformer, zero-phase sequence current transformer, and instrument voltage transformer, main buses, a communication bus linked to the main buses, and connected to the first and the second switching units, and first and second leader buses, the first connected to the first switching unit, the second connected to the second switching unit. Each switching unit has a movable cart, the circuit breaker mounted on the cart, and a frame assembly. Two terminals are disposed on the back of the circuit breaker, one connected to a fixed electrode and the other connected to a movable electrode of the circuit breaker. The two terminals are connected to the communication bus and to the first or second leader bus through air bushings.

Abstract: The invention relates to a gas-insulated high-voltage switchgear, comprising at least one bus bar with three phase conductors, whereby each phase conductor is connected to the input of a respectively provided bus bar section. The phase conductor and the bus bar section are arranged in a three-phase bus bar module with three single-phase power switches, each arranged in a separate power switch housing and each bus bar section is connected at the output therefrom to a respectively provided power switch.

Abstract: A current transformer cabinet is disclosed having an electrical meter coupled to current transformers. One or more disconnect switches arranged between the source conductors and the load conductors. The disconnect switches include a link member that allows the disconnecting of electrical service from the load conductors by rotation of the link from a first position to a second position.

Abstract: An engine control device, especially an engine control device having an internal by-pass, is disclosed. The universally applicable engine control device includes an integrated by-pass function. For this purpose, a housing includes chambers that are electrically insulated from one another and that are configured both to receive a respective power subunit, and, alternatively, to receive a continuous current-bearing element.

Abstract: A compartmental transformer and a method maintenance therefore is provided. The transformer includes a first compartment housing first equipment electrically coupled to the high voltage side of the transformer and a second compartment housing second equipment electrically coupled with the low voltage side of the transformer. The transformer further includes a maintenance compartment, separate from the first and second compartments, for housing a plurality of maintenance devices used for servicing the transformer while the transformer is energized.

Abstract: An electronic module for a trip device has been optimised so as to integrate the known functionalities, in particular threshold parameter setting, current measurements, voltage taps, read-out display and communication. An electromagnetic actuator is further present in the electronic module to optimise breaking of the associated circuit breaker. The space occupation constraints inherent to location of the trip device in existing switchgear units have been respected.

Abstract: An electrical enclosure includes a housing having a front, a back, a plurality of sides, a plurality of sections disposed between the sides, at least one electrical apparatus, and a plurality of electrical bus members electrically connected to the electrical apparatus. The electrical apparatus is disposed within a first one of the sections of the housing, and a substantial portion of the electrical bus members are collectively disposed within a second one of the sections of the housing. At least the second one of the sections and the substantial portion of the electrical bus members collectively disposed therein are accessible from the front of the housing, regardless of whether the electrical apparatus is within or removed from the first one of the sections of the housing. An electrical bus assembly is also disclosed.

Abstract: An electrical bus member mounting system is provided for an electrical enclosure including a housing having a front, a back and a plurality of sides, a plurality of sections disposed between the sides, at least one electrical apparatus disposed within a first one of the sections, and an electrical bus assembly electrically connected to the electrical apparatus. The electrical bus member mounting system includes a mounting assembly having a first portion and a second portion. A plurality of electrical bus members are coupled to the first portion and the second portion is coupled at or about at least one of the sides of the housing within a second one of the sections thereof. Accordingly, the electrical bus member mounting system consolidates a substantial portion of the electrical bus assembly at a single location within the second one of the sections of the housing, in order to facilitate access thereto.

Abstract: The invention pertains to a current transformer (1?) for enclosed, gas-insulated high-voltage switchgear (10). According to the invention, a current transformer (1?) is characterized in that a removable installation flange (12, 12?) is provided on a fill opening (3c) of the core carrier (11) for one-piece current transformer cores (2). Among other things, embodiments pertain to: a removable installation flange (12, 12?) in the form of a two-part clamping flange (12) or in the form of a one-piece rotary flange (12?) that is screwed on the fill opening (3c) similar to a bayonet catch. Among other things, the attained advantages are: radially increased installation space for one-piece current transformer cores (2); reduced diameter (d) for one-piece current transformer cores (2) and reduced structural volume of the current transformer casing (11a).

Abstract: An improved power distribution unit substation, having a plurality of differing voltage rated main breaker cells, encased within a single housing is disclosed. The improved power distribution substation saves considerable floor space as compared to prior art substations. One embodiment houses a plurality of main breaker cells in a single housing. In this embodiment, a low voltage main breaker cell is vertically positioned above a plurality of medium voltage main breaker cells. Alternatively, a medium voltage main breaker cell is vertically positioned above a plurality of low or medium voltage cells. Improved single-ended and double-ended power distribution substations are disclosed that offer cost and floor space savings as compared to prior art substations.

Abstract: An object of the present invention is to provide a switching device for power distribution, wherein the entire load side-area including a circuit breaker can be protected against the grounding, whereby the protection region can be widened, leading to an enhancement in reliability. A circuit breaker, a current transformer and a zero-phase current transformer disposed in series are constructed as a unit, mounted on a carriage and accommodated in a power-receiving/distributing board. The switching unit for power distribution is constructed for connection to and for disconnection from a power source side-conductor and a load side-conductor. The zero-phase current transformer is disposed at a power source side-portion of the circuit breaker.

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: The instrumentation transformers 6a to 6d and 7a to 7f for measuring the voltage of the main circuit are arranged within the container 15b located in the midst of the containers 15a to 15c. In the present invention, the containers 15a and 15b are linked by the insulating tube 21a and the primary-side lead lines 49 and 53 connected electrically to the primary-side terminal of the instrumentation transformers 6a and 7a are made routed from the container 15b through the insulating tube 21a to the container 15a, and the containers 15b and 15c are linked by the insulating tube 21b and the primary-side lead lines 51 and 55 connected electrically to the primary-side terminal of the instrumentation transformers 6d and 7e are made routed from the container 15b through the insulating tube 21b to the container 15c.

Abstract: Bushing leader circuits 3, 4 are connected to end portions of two main buses 1, 2 on the side of a leading-in steel tower 110, and cable head units 85, 95 of cable leader circuits 6, 7 connected to the main buses 1, 2 are arranged in a space formed between the main buses 1 and 2. Thereby it is possible to achive both of simplification of a cable channel and the economy of the apparatus.

Abstract: The instrumentation transformers 6a to 6d and 7a to 7f for measuring the voltage of the main circuit are arranged within the container 15b located in the midst of the containers 15a to 15c. In the present invention, the containers 15a and 15b are linked by the insulating tube 21a and the primary-side lead lines 49 and 53 connected electrically to the primary-side terminal of the instrumentation transformers 6a and 7a are made routed from the container 15b through the insulating tube 21a to the container 15a, and the containers 15b and 15c are linked by the insulating tube 21b and the primary-side lead lines 51 and 55 connected electrically to the primary-side terminal of the instrumentation transformers 6d and 7e are made routed from the container 15b through the insulating tube 21b to the container 15c.

Abstract: The invention concerns a horizontally divided switchgear, including compartments for high voltage and for cable connection. The cable connection compartment is common to one or more switchgear cubicles and is a compartment separated from the high voltage compartment(s) of the cubicle(s). In the switchgear is included one or more switchgear cubicles defined by vertical (12, 13, 14) and horizontal (15, 16) walls. The cubicle is arranged with only high voltage equipment, while connection means (18) for incoming and outgoing current cables are arranged exteriorly underneath the lower horizontal wall (16) of the cubicle. Bushing means (17) for cable conections are arranged in the lower horizontal wall (16).

Abstract: A gas insulated switch gear has a main bus unit, a circuit breaker unit and a line unit. The line unit has a top plate with a hole through which a potential transformer is inserted into the inside of the line unit and an adapter cover fixed to the potential transformer is connected to the top plate.

Abstract: A substation for high voltage switching and a method of building the same. The substation includes an air-insulated high voltage switchgear station, a transformer and a medium voltage switchgear station. The high voltage switchgear station is arranged inside of a building.

Abstract: In a distributor, a plurality of switches are connected in series with one another on main distribution lines emerging from a receiver switching apparatus, thus forming a trunk. A branch line extends from a junction between each pair of adjoining switches and leads to each load via another switch and a transformer, wherein each pair of switches on the trunk is formed as a single branch unit, and the switch and transformer are united as a power package. In each power package, a supply bushing and a load bushing are placed on the top of a transformer, and shielded with closed housings. A switch is placed in the closed housing for the supply bushing, and a distribution board is placed in the closed housing for the transformer. This configuration enables the disconnection of any branch distribution lines from the main distribution lines and diminishes the installation space.

Abstract: A control unit forms a control center serving as one type of a control panel in an electric power system control system. The control unit accommodates equipments such as a circuit breaker, an electromagnetic switch, a zero-phase current transformer, and an operating transformer, and includes a substantially Z-shaped equipment mounting plate mounted between side plates of the unit to have an intermediate bent portion. The circuit breaker is disposed on a front face of a front mounting portion of the equipment mounting plate, and the current transformer is disposed on a back face thereof. The electromagnetic switch is disposed on a front face of a back mounting portion of the equipment mounting plate, and the thin operating transformer is isolated from other equipments and disposed on a back face thereof.

Abstract: In a power board, network transformers are disposed horizontally to reduce their height, network buses are disposed above the network transformers and a protector breaker and take-off breakers are disposed at the front of the power board in electric chambers and connected to the network buses. This arrangement places the two types of breakers and the electric chambers within the range of height accessible by an operator's hand to permit him to manually handle these breakers, thereby improving ease of handling of the power board.

Abstract: A device grounding system is shown which ensures that upon disconnect, an operator will be able to visually determine that a ground has been applied to the disconnected device. The grounding system is designed to mechanically drive a linkage which is controlled by the position of pullout chassis such that when the power bus is connected to the device, the ground is removed in a fail safe manner. As the chassis is opened, a gap distance is achieved between the device and the power source after which a ground rod is driven against input contacts on the disconnected device. The ground rod remains against the contacts through the full movement of the withdrawn chassis to ensure against inadvertent contacts with live devices.

Abstract: An instrument current transformer for a main power cable which is composed of three power cables for three phases disposed in a power cable laying hole and three current transformer coils for the three phases, each of the three current transformer coils surrounding a corresponding one of the three power cables, the instrument current transformer including: a plurality of upper circumferential installation unit members disposed near an end portion of the power cable laying hole along circumference sides of an opening portion of the power cable laying hole, each of the upper circumferential installation members being provided with at least one securing portion extending in a radial direction and the upper circumferential installation unit members being secured to the end portion of the power cable laying hole via respective at least one securing portions; three axial installation members for the three phases, each extending along corresponding ones of the three power cables, first ends of the axial installation

Abstract: A transformer apparatus whose transformer and a plurality of circuit-breakers are individually accommodated in a plurality of different casings. The casings are stacked one above each other in a plurality of stages with gaps between two subsequent casings and between the casing in the lowermost stage and the floor surface on which the apparatus is mounted. When a specific casing among the plurality of casings which is in an intermediate stage is to be dismounted, support columns are disposed on the outside of the specific casing with their respective ends inserted into the relevant gaps in such a manner that the support columns support the upper subsequent casing, thereby enabling the intermediate casing to be dismounted and remounted.