Hot standby state: It means that the electrical equipment has the power transmission condition and the starting condition, and the circuit breaker is turned into the running state once it is closed. When the electrical equipment is in a hot standby state, the possibility of incoming calls at any time shall be regarded as live equipment.
Operation status: It means that the isolating switch and circuit breaker of the electrical equipment are in the closed state and have voltage. Hot standby state: It means that the electrical equipment has the power transmission condition and the starting condition, and the circuit breaker is turned into the running state once it is closed.
Standard aluminum electrolytic capacitors typically have temperature ratings ranging from 85°C (185F) to 125°C (257F) . However, some specialized electrolytic capacitors, such as those designed for high-temperature applications, can withstand temperatures up to 150°C (302F) or even higher.
Electromigration is one of failure mechanisms of semiconductor, but the failure mode can appear as a short, open, or characteristic degradation. Capacitors have several failure modes, the degree of which depends on the type of capacitor (Table 1).
As these components work, it is natural to wonder if they generate heat. The answer is yes, capacitors can get hot during operation, particularly when subjected to high currents, high frequencies, or excessive voltage stress.
Electrolytic capacitors should not get too hot otherwise they'll have a tendency to vaporize the electrolyte. This can lead to spectacular results such as the capacitor exploding. Some electrolytic capacitors have notches in their casing to create a controlled explosion, though any explosion will render the capacitor useless.