Abstract:
A signal output device includes a timing waveform generation device which outputs each signal from a plurality of output terminals, and an output port exchange device which is connected to the timing waveform generation device, the output port exchange device having output ports which output the signals inputted from the timing waveform generation device, the output port exchange device performing conversion of a correspondence relationship between the output terminals and the output ports based on a predetermined exchange rule.
Abstract:
Inside a sealed enclosure (10) filled with sulphur hexafluoride there are housed main contacts (17,19) and an auxiliary circuit comprising two vacuum cartridges (20,21) electrically connected in series with each other and in parallel with the main contacts. The vacuum cartridges (20,21) are operated by a single mechanism to open and close simultaneously and serial connection enables the voltage withstand to be increased. The invention can be applied to medium or high voltage gas-insulated installations or substations.
Abstract:
An actuator for an electrical circuit interrupter has a power cylinder for operating the circuit interrupter from a high pressure gas flow provided by a gas generating power unit which is a shotgun type shell container filled with a propellant. The propellant is characterized as being composed of spherical nitrocellulose grains having a nitroglycerin content; it is essentially free of deterrent coating and may have a granulation of 0.038/0.020 inches diameter range. Two suitable types are WC 630 or WC 615 manufactured by Olin Corporation of East Alton, Ill.
Abstract translation:用于电路断续器的致动器具有动力气缸,用于由气体发生动力单元提供的高压气流来操作电路断流器,所述气体发生动力单元是装有推进剂的猎枪式壳体容器。 推进剂的特征在于由具有硝酸甘油含量的球形硝化纤维素颗粒组成; 它基本上没有阻燃涂层,并且可以具有0.038 / 0.020英寸直径范围的造粒。 两种合适的类型是由Olin Corporation of East Alton,Ill。制造的WC 630或WC 615。
Abstract:
An improved metal-clad gas-type high-power circuit-breaker construction is provided involving two upstanding circuit-breaker assemblages electrically interconnected adjacent their upper ends, and connected into the series line transmission circuit, preferably, adjacent the mid-portions thereof to pressurized laterally-extending power-transmission lines.Improved structure is provided for simultaneously supporting the interrupting modules, or units up in the air interiorly of an outer grounded metallic casing structure, and, additionally, providing a high-pressure gas-conduit path to the pressurized insulating casing structure surrounding the circuit-breaker modules, and spaced inwardly from the outer grounded metallic casing structure.Improved means are provided for increasing the electrical power capable of being interrupted by such a structure, when desired, involving a series closing resistance, which is inserted into the circuit only during the closing operation of the interrupter. During the opening operation, the resistor is kept out of the electrical circuit and is not utilized.The invention is also applicable when high-voltage surges are not contemplated by utilizing a different type of circuit-interrupter unit within each interrupting assemblage, namely, for example, a single-break circuit-interrupter unit, involving only a separable pair of contacts and gas flow passing through one or both of said separable contacts, depending upon the rating of the breaker, to extinguish the arc.The invention moreover contemplates the arrangement of a pair of circuit-breaker assemblages disposed in generally-horizontal relationship, again the two circit-breaker assemblages constituting a single pole-unit, or one phase of a three-phase circuit-breaker structure. In such a horizontally-mounted arrangement, wherein instead of the two circuit-breaker assemblages extending up in the air, in this alternate embodiment of the invention, they are disposed relatively horizontally, with the connections again being made by, preferably, pressurized conductors, and, for example, the mechanism and gas-compressor equipment housing extending lengthwise, generally horizontally along one of the horizontally-arranged circuit-breaker assemblages of the structure.
Abstract:
A high power circuit breaker using sulfur hexafluoride as an interrupting medium has a main movable sleeve contact which surrounds an axially movable interrupter contact. The interrupter contact further serves as a valve between high pressure and low pressure SF6 filled regions to permit gas blast through the separating interrupting contacts when the valve is opened. The main movable contact has an extension serving as a downstream shutoff valve which pre-encloses a volume downstream of the interrupter contact prior to the opening of the contacts. The interrupter contact is provided with an extending flange which serves as a short-circuited turn which cooperates with an energizing coil. Energization of the coil repels the shortcircuited turn defined by the flange to initially open the blast valve. High-pressure gas is then applied against the movable contact to move the interrupter contact fully open after the valve is opened. The contacts are synchronously operated so that the contacts open immediately prior to a current zero. The opened contacts are disposed in the high-pressure SF6 region.
Abstract:
A high voltage direct current circuit breaker comprising several modules connected in series, each module including an electrodynamic mechanism connected to the mobile contacts of the circuit breaker and permitting to open very rapidly such contacts under load thus creating an electric arc between the contacts. Each module includes at least one deionizing chamber comprising a suitable number of parallel metallic plates disposed perpendicularly to the electric arc to form quenching channels for the electric arc. Finally, each module comprises at least one magnetic arc extinguishing system for deflecting the electric arc of the contacts into the deionizing chamber and for forcing such arc to enter into the quenching channels to break it into a number of short arcs so as to create an arc voltage which is higher than the nominal voltage of the circuit, and for quenching such small arcs and finally extinguish them.
Abstract:
A dual-acting piston operable within an operating cylinder is mechanically connected to the moving contact structure of a circuit breaker. The piston has a portion constantly acted upon in the closing direction by a high-pressure operating fluid. A large portion of the piston structure is at low pressure, and the opposite face of the piston structure is alternately pressurized or exhausted to effect, respectively, an opening or a closing operation of the circuit breaker. A portion of the piston structure fits into a recess thereby affording a shock-absorbing function during the closing operation. Another portion of the piston structure traps highpressure operating fluid so as to constitute a shock absorber during the opening operation of the interrupter. In the case that a gas is used, which tends to liquefy, provision is made for the removal of the liquefied gas during the operation of the mechanism.