An apparatus for monitoring a sliding contact element in an electrical rotating machine, in particular a generator, includes a holder for the sliding contact element and a sensor for detection of a state variable of the sliding contact element. An evaluation unit is also provided for evaluation of the state variable which is detected by the sensor, with signals from the sensor being transmitted to the evaluation unit without using wires. The wire-free transmission makes the apparatus particularly maintenance-friendly.
Arrangement of internally cooled electrical conductors, in particular for a generator rotor. A number of internally cooled conductors in each case having a longitudinal conductor and a transverse conductor connected to it, the longitudinal conductors and the transverse conductors being respectively arranged at least approximately parallel and a small distance apart. Advantageous cooling in terms of fluid mechanics is achieved by a cooling duct of a longitudinal conductor of one conductor being connected to a cooling duct of a transverse conductor of an adjacent conductor.
Arrangement of internally cooled electrical conductors, in particular for a generator rotor. A number of internally cooled conductors in each case having a longitudinal conductor and a transverse conductor connected to it, the longitudinal conductors and the transverse conductors being respectively arranged at least approximately parallel and a small distance apart. Advantageous cooling in terms of fluid mechanics is achieved by a cooling duct of a longitudinal conductor of one conductor being connected to a cooling duct of a transverse conductor of an adjacent conductor.
An energy supply network includes at least one power station plant, at least one energy supplier, at least one energy infeed node, a number of energy distribution nodes and a number of consumers, which are supplied with electrical energy via the energy distribution nodes. At least some of the energy distribution nodes each include a power measuring instrument, via which the summated electrical power taken by all those consumers which are supplied with electrical energy via the respective energy distribution node, can be established. Further, a method makes use of previous and present consumption data in order to forecast a power demand as accurately as possible and to arrange for an appropriate feeding-in of electrical energy into the infeed node by the power station plant.
Arrangement of internally cooled electrical conductors, in particular for a generator rotor. A number of internally cooled conductors in each case comprise a longitudinal conductor and a transverse conductor connected to it, the longitudinal conductors and the transverse conductors being respectively arranged at least approximately parallel and a small distance apart. Advantageous cooling in terms of fluid mechanics is achieved by a cooling duct of a longitudinal conductor of one conductor being connected to a cooling duct of a transverse conductor of an adjacent conductor.