INSULATION CLASS TEMPERATURE RISE CLASS - Nidec Leroy …

TECHNICAL NOTE. TN11. INSULATION CLASS /. TEMPERATURE RISE CLASS . PREAMBLE. This technical note aims at: Clarifying INSULATION CLASS and TEMPERATURE Rise CLASS notions Comparing possible systems available ( INSULATION CLASS H / TEMPERATURE rise F vs. INSULATION CLASS F /. TEMPERATURE rise B). Showing evidences on generator lifetime extension, by sizing the generator on a lower TEMPERATURE Rise CLASS INSULATION CLASS . The IEC 60085 specifies that an INSULATION system permanently submitted to its INSULATION CLASS TEMPERATURE has a life expectancy of 20. 000h. It defines the INSULATION CLASS temperatures as follows: INSULATION CLASS H F B. TEMPERATURE 180 C 155 C 130 C.

Insulation Class H & F vs. Operating Temperature (OT in °C) 100 100 000 10 000 10 000 000 100 180 165 155 200 220 Op. T. Class 145 ºC Op. T. Class B 120 °C 165 °C Temperature (°C) 1 280 000 20 000 226 274 56 569 40 000 an an F Op. T. Class H ...

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