Method for determining the state of an electrical switchgear assembly, monitoring unit for an electrical switchgear assembly, and electrical switchgear assembly

A monitoring unit for an electrical switchgear assembly, the monitoring unit comprising:

• a measuring unit for measuring a current intensity flowing through the switchgear assembly and a voltage dropped across the switchgear assembly;
• and
• an evaluation unit with a memory;
• wherein the memory stores a first threshold value for the voltage and a second threshold value for a electric current intensity;
• and
• the evaluation unit is programmed to ascertain a time interval indicating a duration between the first threshold value being exceeded and the second threshold value being fallen below, and to compare the ascertained time interval with a reference value stored in the memory.

An electrical switchgear assembly comprising:

• a measuring unit for measuring a current intensity flowing through the switchgear assembly and a voltage dropped across the switchgear assembly;
• and
• an evaluation unit with a memory;
• wherein the memory stores a first threshold value for the voltage and a second threshold value for the current intensity;
• and
• the evaluation unit is programmed to ascertain a time interval indicating a duration between the first threshold value being exceeded and the second threshold value being fallen below, and to compare the ascertained time interval with a reference value stored in the memory.