Hioki PD3259-50, Instruction Manual

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6
Appendix
6.1 Three-Phase System
Three-phase 400 V line
415 V* 2
415 V*
2
415 V*
2
240 V*
1
240 V*
1
240 V*
1
Ground
Displayed voltages
*1: Line-to ground
voltages
(For three-phase
four-wire system,
equivalent to
phase voltage)
*2: Line-to-line
voltages
The 400 V line depicted in the figure has line-to-line voltages each of which is
415 V yet has line-to-ground voltages each of which is approximately 240 V. You
can use a measuring instrument whose the input rating of a line-to-ground
voltage is 300 V to measure this circuit
Each voltage sensor has an input rating of a line-to-ground voltage of 400 V,
enabling the PD3259-50 to safely measure lines which has line-to-line
voltages each of which is 415 V.
6 Appendix
HIOKI PD3259C961-00