| 摘要 |
<P>PROBLEM TO BE SOLVED: To appropriately display each power waveform even when excessive shaft torque is activated immediately after a motor is started. <P>SOLUTION: A power waveform display system 10 has: electric power acquisition means 60, 61, 22 through 24 and 30; and display means 53. The electric power acquisition means 60, 61, 22 through 24 and 30 comprises the steps of: setting input power supplied to a motor immediately after the motor is started to a first input range capable of being measured; acquiring the input power supplied to the motor during a motor operation time period as starting power; setting the input power in a steady state supplied to the motor after the motor is started to a second input range capable of being measured; acquiring the input power supplied to the motor during the motor operation time period as steady power; and acquiring the starting power and the steady power at normal operation and comparison operation of a load tap changer. The display means 53 comprises the steps of: displaying a first starting power waveform corresponding to the starting power at the normal operation and a second starting power waveform corresponding to the starting power at the comparison operation in a manner such that they can be compared with each other; and displaying a first steady power waveform corresponding to the steady power at the normal operation and a second steady power waveform corresponding to the steady power at the comparison operation in a manner such that they can be compared with each other. <P>COPYRIGHT: (C)2012,JPO&INPIT |
