MXPA00006028A - Circuit breaker system, especially an air-insulated withdrawable circuit breaker system using medium voltage technology - Google Patents

Abstract

The invention relates to a circuit breaker system, especially an air-insulated medium voltage switchgear, with the functional features"connect","disconnect"and"earth". The inventive circuit breaker contains a switching module (SM) which consists of function-orientated modular units, i.e. a base unit (BM), a pole unit (PM) and a drive unit (AM). The base unit (BM) is permanently connected to the drive unit (AM) and the pole unit (PM) is located on the same, in such a way that it can move in a straight line. Circuit breaker systems of this type can be used for supplying and distributingenergy, especially in installations which use medium voltage technology.

Description

SYSTEM. POWER SWITCH, ESPECIALLY INSULATED POWER SWITCH SYSTEM ISOLATED AIR AMPLIFIER VOLTAGE TECHNIQUE MID FIELD PE INVENTION Power circuit breaker system, especially an air-isolated plug-in power circuit breaker of the medium voltage technique. The invention relates to a power switching system, in particular an air-insulated plug-in power circuit breaker system of the medium voltage technique, with the operating characteristics "connect", "disconnect", and "land". AJTGECELTEISGGES OF THE INVENTION The power switch system of the aforementioned type is known among others by the writing of Siemens AG "Medium Voltage System, Catalog HA 25.21, 1993". The plug of the power switch system consists of a central trolley that in different embodiments can take different plugs and in the running state can be completely removed from the plug area of the power switch system. The plug can be treated, depending on the function, of a vacuum-power switch, as well as a vacuum load switch, for vacuum protection plugs or plugs of bypass elements for disconnectors.

The plug area is protected by means of partition walls of the neighboring switching zones and can be closed by means of a door placed in the front frame. Thanks to the different types of systems, the moving parts have been adapted to the different constructions, in such a way that several different constructions are foreseen for these power switching systems. The task of the invention is to considerably limit the multiplicity of this type of power circuit breakers and, in general, to simplify the mechanical construction of this type of power circuit breaker systems without these limitations having an effect on the characteristics of the power circuit breakers. power. The task of the invention is achieved by means of the following characteristics. 1.1 The power circuit breaker system contains a switch module that is configured as a function-oriented modular unit, 1.2 The operation-oriented modular units are realized by means of a base module unit, a polarity module unit and a drive unit , 1.3 The base module unit is closely connected to the drive module unit while the modular polarity unit is movably placed in a straight line. With the separation oriented to the operation in the modular unit, a configuration of the system is achieved that can be carried out with different components in a single constructive form. The switch module in which the base module unit is closely connected to the drive module unit and the polarity module unit by means of the effect of the drive module, can move in a straight line on the base module unit, can it can be constructed in a unique way regardless of the function of the plug as a vacuum power switch, as a vacuum load switch with vacuum protection or with a bridge element. This also applies to the polarity module and the different parts of the power circuit breaker system. According to a preferred embodiment of the invention, the following characteristics are provided: 2.1 The polarity module unit is provided with a number corresponding to the number of phases to be switched from vacuum power circuit breakers, vacuum load switches, protective devices vacuum or bridging elements, which are connected by means of an upper and lower disconnection contact, 2.2 The impulse module unit is provided with a defrosting system that drives the guide axes of the base module unit to the polarity module unit, 2.3 The impulse module unit, has a switching or protection device operable jointly, by means of the mobile contacts of the vacuum power circuit breaker of the vacuum load switch or the vacuum protector, 2.4 The drive module unit has a ground connection to control the cable connection impulse branch to earth and the supply branch of busbar to ground. With the system of independent disconnection of the switching or protection system, the advances of the guide axes can be controlled separately in a simple manner and eventually by means of simple and safe locks. The separate lander system for the earth cable connection drive branch and the ground bus drive branch allows other constructive simplifications. Thus, for example, the motors can be implemented depending on the concept of the system, as a complete unit or, if not needed, they can be omitted. According to another advantageous embodiment of the invention, the following characteristics are provided: 3.1 The drive branch of the ground wire connection and the ground bus drive branch in the base module unit run parallel to the axes guide and they are placed below them, 3.2 The supply branch of the cable connection to earth and the branch bus to ground branch, have in the area of the disconnection contacts, separate switching couplings to ground. With the supply branch of the cable connection to the ground and the supply branch of the busbar to the ground running below and parallel to the guide axes, which in the area of the disconnection contacts are provided with separate switching couplings to ground, the power transfer can be coupled in a simple manner to the cable connection impulse branches to ground and the busbar to earth supply branches not shown in the power circuit breaker system. Another additional advantageous embodiment of the invention is found in the following characteristics: 4.1 Vacuum power switches, vacuum load switches, vacuum protectors or bridging elements are placed at right angles to their longitudinal axis to the plane of the base module unit and with its disconnection contacts parallel to the direction of movement of the polarity module unit, 4. 2 Vacuum power switches, vacuum load switches, vacuum protectors or bridging elements are fixed in a place on the polarity module unit by means of two neighboring polarity columns that partially enclose them. By means of this configuration of the vacuum power circuit breaker, vacuum load switch, vacuum protector or bypass element, on the polarity module unit, a very compact switching module is made for the power circuit breaker system with minimum space requirements. BRIEF DESCRIPTION OF THE FIGURES The invention is explained in more detail by means of an exemplary embodiment shown in three figures, in which: FIG. 1 shows the switching module of the power switch system in a side view while FIGURES 2 and FIG. 3, show the switching module of the power switch system from a top view and a front view. DETAILED DESCRIPTION OF THE INVENTION FIG. 1 shows the SM switching module of the power circuit breaker system, which essentially consists of the base module unit BN, the polarity module unit PM, and the module module unit. AM drive. The polarity module unit PM is movably positioned in the direction of the arrow by means of the drive module unit AM on the base module unit PM along the guide axis FW. The PM polarity module unit is furthermore provided with upper and lower disconnection contacts T and T and T, which upon removal of the polarity module unit PM from contacts of the power supply circuit (not shown) are interrupted by disconnection means. . Furthermore, it can be seen that the drive module unit AM has the disconnector TA, the switch or protector SA, and the ground contact EA. Thus, the base module unit BM is provided with couplings to the EK ground switch. From Fig. 3, it can be seen that the switching module SM. { Fig. 1) of the power circuit breaker system is provided with grounded connectors grounded SE, and ground wire connectors KE which are positioned below the first and second guide shafts F 1, F 2. Further it is clear from Fig. .2 that the ground connection SE (Fig. 3), in the plane of the disconnection contacts TK1, TK2, TK3, is coordinated to the first ground-switching coupling EK1, while - the cable ground connection KE (Fig. 3) in the same plane contains the other ground connection coupling EK2. - Furthermore, it can be recognized in Fig. 2, that the vacuum power circuit breakers, the vacuum load switches, the vacuum protectors and the VS bridge elements are partially surrounded by two columns of polarity PS and that the circuit breakers Vacuum power, vacuum load switches, vacuum protectors, or bypass elements VS, are placed on the PM module unit (Fig. 1) with its longitudinal axes perpendicular and side by side on - the base module unit BM. With such a configuration of the switching module SM, a compact construction of the power switching system is obtained, which is obtained independently of the function of the different types of systems, in a particularly advantageous single construction.

Claims (4)

1. NOVELTY PE A, INVENTION Having described the invention as above, the contents of the following are claimed as property: REIYINPICAgiQNES 1.- A power switch system, in particular an air-insulated plug-in power switch system of the medium voltage technique, with operating characteristics "connect", "disconnect", and "land", characterized by the following characteristics: 1.1 The power circuit breaker system contains a switch module (SM) that is conformed with a function-oriented modular unit, 1.2 Modular units oriented to the operation are realized by means of a unit -of base module (BM), a unit of polarity module (PM) and a drive unit (AM), 1.3 The module unit (BM) base is connected closely with the drive module unit (AM) while the polarity module unit (PM) is positioned movably in a straight line. 2. Power switch system, according to claim 1, characterized by the following characteristics 2.1 The polarity module unit is provided with a number corresponding to the number of phases to be switched from vacuum power circuit breakers, load switches to vacuum, vacuum protectors or bridging elements (VS ..), which are connected by means of an upper and lower disconnection contact T o, Tku), 2.2 The drive module unit (AM), is provided with a disconnector system (TA) that drives the guide axes (FW) of the base module unit to the polarity module unit (PM), 2.3 The unit of the impulse module (AM) has a switching or protection system ( SA) can be actuated together, by means of the mobile contacts of the vacuum power circuit breaker of the vacuum load switch or the vacuum protector (VS), 2.4 The drive module unit (AM) presents a ground connection (ES) to control the supply branch of the cable ground connection (KE) and to control a busbar drive end to ground
2. (HE) . 3. - Power breaker system, according to claims 1 or 2, characterized by the following characteristics 3.1 The drive branch of the cable ground connection (KE) and the branch bus to earth (SE) in the base module unit (BM) they run parallel to the guide axes (FW1,2) and are placed below them,
3. 3.2 The drive branch of the cable ground connection (KE) and the bar drive branch collector to earth (SE), present in the area of the disconnection contacts (TK ...), separate separate switching couplings to earth (EK1 and EK2). 4. Power switch system, according to claim 4, characterized by the following characteristics 4.1 The vacuum power switches, the vacuum load switches, the vacuum protectors or the bridging elements (VS), are placed making a right angle with its longitudinal axis to the plane of the base module unit (BM) and with its disconnection contacts (TK ...) parallel to the direction of movement of the polarity module unit (PM),
4. 4.2 - Vacuum circuit-breakers, vacuum load circuit-breakers, vacuum protectors or bypass elements (VS ...) are fixed in one place on the polarity module unit (PM) by means of two columns of polarity (PS ...) neighbors that partially surround them. KESQMKN PE O ^ A «TVENCXON Power switch system, especially plug-in, air-insulated power switch system with medium voltage technology. The invention relates to a power switching system, in particular an air-insulated plug-in power circuit breaker system of the medium voltage technique, with the operating characteristics "connect", "disconnect", and "land". The power circuit breaker system contains a switch module (SM) which is designed as a function-oriented modular unit, where the base module unit (BM), a polarity module unit (PM) and a drive unit (AM) ) and the base module unit (BM) is closely connected to the drive module unit (AM) while the polarity module unit (PM) is movable in a straight line mobile manner.