Abstract: According to one embodiment, there is provided a protection relay apparatus that protects lines of a three-phase alternating current power system, the protection relay apparatus including a fault detector to detect a fault of the line, an opening unit to open a circuit breaker of a fault phase in which the fault has occurred through detection of the fault, a fault phase voltage measurement unit to measure a voltage of the fault phase after the circuit breaker is opened, a fault recovery determination unit to determine whether the fault is recovered or not based on the voltage, and a closing unit to close the circuit breaker when the fault recovery determination unit determines that the fault is recovered.

Abstract: A resin tablet for sealing a semiconductor formed by solidifying a molten thermosetting resin composition by cooling, wherein the content of volatile matters in the tablet is 0.05% by weight or less, and the content of gelled particles in the tablet is 0 for the particles of 60 mesh on and is 10 ppm or less for the particles of 100 mesh on.

Abstract: An electrical connector of the zipper type comprises first and second connector members with respective rows of contact elements and insulating elements which are brought into intermeshing relation when the connector members are closed together. The contact elements are located in a mold as stamped and formed contact strips and in-molded with a carrier of resilient insulating material, which also covers one side of each contact element in insulating relation, to provide an elongate connector member which can be handled as only a single piece.

Abstract: A low profile socket connector includes a plastic, rectangular, frame-like base member (11) having substantially rigid walls (21,22,23,24) defining between them a socket (20), receiving an LGA device (16) in coplanar relation. Beam springs (34,35), integrally formed with two adjacent walls (22,24) adjacent one corner, protrude into the socket (20) into biassing engagement with adjacent edge portions of the LGA device (16) forcing opposite adjacent edge portions into abutment with walls (23,25) defining the opposite corner, automatically locating and maintaining the device (16) in a reference position (A). A stud-like, outer securing member (14) with flexible legs (48) is insertable in a mounting socket (38) in the base member (11) and through an aperture in a circuit board (18) and an inner securing member (15) is completely receivable in an axial passageway (43) in the outer securing member (14) to spread the legs (48) into anchoring engagement with the circuit board (18).

Abstract: The disclosure relates to a rotary indicating device preferably in use, for example, for wheel covers for motor vehicles. The device includes a base member adapted to be rotated about a rotary axis and having an indication region thereon. The indication region indicates a desired image and comprises a plurality of reflection faces. The reflection faces are inclined in the same direction and also at the same angle with respect to a standard plane perpendicular to a rotary axis of the rotary base member. Thus, when the base member rotates, the observer can visually recognize the image as a clear single image due to the after image phenomenon.