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Thermal issues shorten motor life. Modern motor relays must protect for these effects, which can occur for motors from small to large (50 hp and greater) and for all voltage operational levels. However, being too conservative on thermal limits decreases motor productivity. An ANSI/IEEE 49 thermal element creates a realistic thermal model of the motor because the element takes the load level and negative-sequence...
Thermal issues shorten motor life. Modern motor relays must protect for these effects, which can occur for motors from small to large (50 HP and greater), and for all voltage operational levels. However, being too conservative on thermal limits decreases motor productivity. An ANSI/IEEE 49 thermal element creates a realistic thermal model of the motor because the element takes the load level and negative-sequence...
Thermal issues shorten motor life. However, being too conservative on thermal limits decreases motor productivity. An Institute of Electrical and Electronics Engineers 49 thermal element creates a realistic thermal model of the motor because the element takes the load level and negative-sequence currents into account. The 49 thermal element is superior to older methods using inverse-time overcurrent...
Thermal issues shorten motor life. However, being too conservative on thermal limits decreases motor productivity. An Institute of Electrical and Electronics Engineers 49 thermal element creates a realistic thermal model of the motor because the element takes the load level and negative-sequence currents into account. The 49 thermal element is superior to older methods using inverse-time overcurrent...
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