12. Inverter Selection
Inverter Capacity Check Method
Description
Load type
Load speed
and torque
Load
charcteristics
characteristics
Load
charcteristics
Continuous operation
Operastion
Long-time operation at medium or low speeds
Short-time operation
Maximum required output(instantaneous) Constant
Rated output
output(continuous)
Maximum rpm
Rated rpm
Rated rpm
Power supply transformer capacity percentage
impednace
Power supply
Voltage fluctuations
Number of phases, singla phase protection
Frequency
Deterioration of
Mechanical friction, losses in wiring
load capacity
Duty cycle modification
due to age
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Friction load and weight load
Liquid(viscous) load
inerita load
Load with power transmission
and accumulation
Constant torque
Constant power
Descreasing torque
Motoring
Braking or overhanging load
Constant load
Shock load
Repetitive load
High-start torque
Low-start torque
85
Related factor