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English Translations » 电气工程圈 » Seeking advice on parameters for the inverse time formula

Seeking advice on parameters for the inverse time formula

2021-03-10View Original

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Standard inverse time: t=0.14tp/((I/Ip)^0.02 – 1). Very inverse time: t=13.5tp/((I/Ip) – 1). Extreme inverse time: t=80tp/((I/Ip)^2 – 1). May I ask how the value of tp is determined in the IEC inverse time formula?
Reply #22024-10-26
TP is the time constant, which is similar to solving an equation. Find a known operating condition.

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Translated at 2026-07-23 19:29:58

Original: https://bbs.hcbbs.com/thread-3184038-1-1.html

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