Device for measuring gas or air temperature in a casing box
AssigneeABB AB
InventorsRudiger Kratschmar, Ralf Graf, Hans-Peter Merkel
Life of this patent
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Abstract
A device for measuring gas temperature in a casing box having different heat-generating units disposed therein. The device includes a temperature-measuring arrangement disposed substantially in a plane above the different heat-generating units. The temperature-measuring arrangement includes a matrix of uniformly distributed temperature sensors configured to measure a temperature of rising gas.
Claims17
A device for measuring gas temperature in a casing box of a withdrawable part of a low-voltage switchgear cabinet having different heat-generating units disposed therein, the device comprising a temperature-measuring arrangement disposed substantially in a plane above the different heat-generating units, the temperature-measuring arrangement including a carrier having a plurality of openings configured to allow rising gas heated by the different heat-generating units to flow past a matrix of temperature sensors that are uniformly distributed on the carrier and configured to measure a temperature of the rising gas.
An electrical low-voltage switchgear cabinet comprising:
- a casing box of a withdrawable part of the low-voltage switchgear cabinet;
- a plurality of different heat-generating units disposed in the casing box;
- a device for measuring gas temperature in the casing box, the device including a temperature-measuring arrangement disposed substantially in a plane above the different heat-generating units, the temperature-measuring arrangement including a carrier having a plurality of openings configured to allow rising gas heated by the different heat-generating units to flow past a matrix of temperature sensors that are uniformly distributed on the carrier and configured to measure a temperature of the rising gas in the casing box;
- and
- an evaluation unit configured to emit an alarm signal in response to a temperature of the rising gas exceeding a threshold value.
Dependencies are inferred from the claim text.