摘要:
The installation contains a current conductor producing Joulean heat in the operating state, a cooling element and a monitoring device. The cooling element has a condensable working medium and an evaporator, which can be heated by the current conductor of the installation, and a condenser which has been withdrawn from the heating effect of the current conductor. The monitoring device comprises at least one sensor for detecting a parameter of the cooling element and an evaluation unit, which receives output signals from the sensor. In the evaluation unit, the output signals of the sensors are evaluated and a signal describing the state and/or the functionality of the cooling element is formed there. This installation is characterized by high operational reliability with a high current-carrying capacity and dimensions which are kept small.
摘要:
In order to dissipate heat losses from the inner conductor (21), the circuit breaker (20) having an elongated inner conductor (21) and an outer conductor (22) which surrounds the inner conductor (21) like a housing has at least one heat pipe (1) which extends from the inner conductor (21) to the outer conductor (22) and has an insulating hollow body (5) in order to form an electrical insulating gap (7). The heat pipe (1) advantageously has a flexibly deformable section (9). The heat pipe (1) can run in a supporting insulator (24) which supports the inner conductor (21). In addition to a working medium, the heat pipe (1) advantageously also contains an auxiliary gas which results in an enhanced dielectric strength at low temperatures.
摘要:
The high-voltage system has at least one feed line and at least one high-power circuit breaker, the at least one feed line having a longitudinally extended feed line inner conductor and a feed line outer conductor surrounding the feed line inner conductor, and the high-power circuit breaker having a longitudinally extended circuit breaker inner conductor and a circuit breaker outer conductor surrounding the circuit breaker inner conductor in the form of a housing, and the inner conductors and the outer conductors being electrically conductively connected to one another. At least one heat pipe is provided for the purpose of dissipating thermal energy from the circuit breaker inner conductor. The heat pipe interacts with a cooling gas flow extending along the circuit breaker inner conductor.
摘要:
The installation contains a current conductor producing Joulean heat in the operating state, a cooling element and a monitoring device. The cooling element has a condensable working medium and an evaporator, which can be heated by the current conductor of the installation, and a condenser which has been withdrawn from the heating effect of the current conductor. The monitoring device comprises at least one sensor for detecting a parameter of the cooling element and an evaluation unit, which receives output signals from the sensor. In the evaluation unit, the output signals of the sensors are evaluated and a signal describing the state and/or the functionality of the cooling element is formed there. This installation is characterized by high operational reliability with a high current-carrying capacity and dimensions which are kept small.
摘要:
An exemplary isolating tube, and production method thereof, includes a mechanically load-bearing plastic tube composed of a fiber-reinforced polymer for use in a cooling element which can be loaded with high voltage, during whose operation the isolating tube forms an electrical isolation gap and in the tube interior carries an agent which flows as a liquid and/or vapor. The isolating tube can have a diffusion barrier which is held coaxially by the plastic tube. Such an isolating tube can be produced using an exemplary novel method for production.
摘要:
An isolating tube is disclosed having a mechanically load-bearing plastic tube composed of a fiber-reinforced polymer for use in a cooling element which can be loaded with high voltage, during whose operation the isolating tube forms an electrical isolation gap and in the tube interior carries an agent which flows as a liquid and/or vapor. The isolating tube has a diffusion barrier which is held coaxially by the plastic tube. Methods for production of the isolating tube are disclosed.
摘要:
In order to dissipate heat losses from the inner conductor (21), the circuit breaker (20) having an elongated inner conductor (21) and an outer conductor (22) which surrounds the inner conductor (21) like a housing has at least one heat pipe (1) which extends from the inner conductor (21) to the outer conductor (22) and has an insulating hollow body (5) in order to form an electrical insulating gap (7). The heat pipe (1) advantageously has a flexibly deformable section (9). The heat pipe (1) can run in a supporting insulator (24) which supports the inner conductor (21). In addition to a working medium, the heat pipe (1) advantageously also contains an auxiliary gas which results in an enhanced dielectric strength at low temperatures.
摘要:
A cooling device is disclosed for an electrical operating means, which has a surface to be cooled. The cooling device comprises a coolant, a peripheral wall, whose interior defines a volume for the coolant, a fastening for fastening the cooling device to the electrical operating means, and a contact-pressure means. The peripheral wall has a thermally conductive contact wall with a contact face, which is designed for areal contact with the surface to be cooled. The contact-pressure means mechanically prestresses the contact wall in order to produce an areal contact pressure of the contact face against the surface to be cooled when the cooling device is fastened to the electrical operating means.
摘要:
A temperature monitoring apparatus for high-voltage or medium-voltage components has a transducer which can produce a mechanical signal, which is dependent on the temperature of the component to be monitored. The mechanical signal is transmitted to an electrically isolating transmission element, for example in the form of a rod, and from the transmission element to a movement sensor. The transmission element can be arranged in an electrically isolating hollow body. This arrangement allows the movement sensor to be isolated from high voltages. The apparatus is composed of robust components, and can have a long life.
摘要:
The high-voltage system has at least one feed line and at least one high-power circuit breaker, the at least one feed line having a longitudinally extended feed line inner conductor and a feed line outer conductor surrounding the feed line inner conductor, and the high-power circuit breaker having a longitudinally extended circuit breaker inner conductor and a circuit breaker outer conductor surrounding the circuit breaker inner conductor in the form of a housing, and the inner conductors and the outer conductors being electrically conductively connected to one another. At least one heat pipe is provided for the purpose of dissipating thermal energy from the circuit breaker inner conductor. The heat pipe interacts with a cooling gas flow extending along the circuit breaker inner conductor.