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 high voltage power receiving and transforming apparatus for consumer demands receiving power from two lines and supplying the power to respective transformers through instrument potential and current transformers. First circuit breakers at a primary side of the transformers, are arranged at both sides of the instrument potential and current transformers, second circuit breakers, at a receiving side, are arranged at both sides of said first circuit breakers. The circuit breakers and receiving portion connecting portion to the transformers, and the instrument potential and current transformer are connected by a duct line connection portion at a backside of the circuit breakers.

Abstract: A metal-clad modular power-supply station comprising a main set of busbars interconnecting at least two pairs of components, such as overhead feedthroughs or cable boxes, in an H-station configuration. The components are connected together in pairs by respective rectilinear groups of metal-clad electrical apparatuses that are parallel to and connected to the main set of busbars. Preferably, the groups of electrical apparatuses are in alignment. The length of the set of busbars is thus reduced while complying with the laid-down isolation distances and a station is provided of minimum size and of reduced cost.

Abstract: A low inductance bus bar arrangement suitable for industrial voltage levels, and for power applications contains two or more elongate electrical conducting bars having rounded edges. Strips of dielectric insulating material are located between two of the elongate electrical conducting bars. The conducting bars are oriented in substantially parallel relationship to one another with the dielectric insulating material having a height of the cross-section thereof substantially greater than the height of the cross-section of the conducting bars. The bus bar arrangement also provides low inductance to the connecting devices.

Abstract: The present invention is directed towards an electrical switch. The switch has a first board to which input and output leads are attached proximate one end of a plurality of buses on the first board. Proximate the other ends of the plurality of buses are electrical contacts. The switch also has a second board which is interchangeably attachable to the first board. The second board includes a plurality of electrical buses that are selectively arranged to electronically connect the contacts on the first board. The connections electrically connect the input and output leads on the first board to provide a predetermined arrangement of electrical connections.

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.