Kikusui KHA3000, Руководство по эксплуатации, Страница: 214 / 392

214
KHA3000
Setting the Impedance Again (61000-3-11)
Customers are asked to prepare the impedance.
●
When you declare that the power supply to be connected requires a current capacity of
100 A or more per phase as the equipment operating condition
• 0.25

+ jn0.25

(single-phase)
• 0.15

+ jn0.15

(three-phase)
• 0.10

+ jn0.10

(three-phase neutral line)
●
When you declare the maximum permissible system impedance (Zmax) of the power
supply to be connected as the equipment operating condition
• The voltage drop caused by the EUT is 3% to 5% of the voltage.
• The ratio of the reactance component to the resistance component of the impedance is
0.5 to 0.75.
1
Set OUTPUT of the AC power supply to OFF.
2
Ensure the impedance of the AC power supply conforms to the standard
requirements.
To satisfy the standard requirements, the impedance or the AC power supply may need
to be replaced.
3
Press the Vf key.
The Vf-Test Conditions List display appears.
4
Press the F6 key to select menu page 3/4.
5
Press the F2 key to select Test Impedance.
A sub-menu is displayed.
6
Press the F1 key to select 0.25

+ jn0.25

(single-phase), 0.15

+
jn0.15

(three-phase), or Specified in Z test.
When Specified is selected, input values in the F2 to F5 menus. The input values are
used for converting limit values.
7
Press the F6 key to return.
8
Set OUTPUT of the power supply to ON.
WARNING
• This work has a risk of electric shock. For the AC power supply used for the
measurement circuit, be sure to disconnect the power cord from the outlet, turn off
the switch on the distribution panel to which the power cord is connected, and turn
off the POWER switch.