Switching system temperature measurement

A switching station, comprising:

• a switch for medium voltages and/or high voltages, said switch having a first electrical connection on a first side of said switch and a second electrical connection on a second side of said switch, a medium voltage or a high voltage being supplied to said switch via said first electrical connection, the medium voltage or the high voltage being conducted away from said switch via said second electrical connection;
• and
• a temperature-measuring unit having a temperature-measuring head, a temperature-transmitting element, a temperature-transmitting medium, a temperature-transducing element and a temperature-signaling device, wherein:
• said temperature-measuring head is disposed on said first electrical connection or on said second electrical connection;
• said temperature-transmitting element adjoining said temperature-measuring head, said temperature-measuring head being configured to be heat-conducting in such a manner that it assumes a first temperature of said first electrical connection or of said second electrical connection or approaches the first temperature, said temperature-measuring head being configured to transmit the first temperature to said temperature-transmitting medium disposed in said temperature-transmitting element in such a manner that said temperature-transmitting medium assumes a volume that is characteristic of the first temperature, said temperature-transmitting element and said temperature-transmitting medium being configured to be electrically insulating, and said temperature-transmitting element and said temperature-transmitting medium having different coefficients of thermal expansion;
• and
• a characteristic volume of said temperature-transmitting medium acting on said temperature-transducing element in such a manner that said temperature-transducing element generates a temperature signal being indicated, signaled and/or stored by said temperature-signaling device.

A method for operating a switching station having a switch for medium voltages and/or high voltages, the switch having a first electrical connection on a first side of the switch and a second electrical connection on a second side of the switch, a medium voltage or a high voltage being supplied to the switch via the first electrical connection, and the medium voltage or the high voltage being conducted away from the switch via the second electrical connection, the switching station further containing a temperature-measuring unit having a temperature-measuring head, a temperature-transmitting element, a temperature-transmitting medium, a temperature-transducing element and a temperature-signaling device,

• which comprises the steps of:
• analyzing, via at least one centralized or distributed computer, a processed or unprocessed temperature signal with respect to a temperature criterion;
• and
• emitting a warning signal to a control room when a fixed or variable threshold value for the temperature criterion is exceeded, and/or initiate a shutdown of the switching station when a further fixed or variable threshold value for the temperature criterion is exceeded.