Quick Manual Instruction Manual

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KEW6305
KEW6305
Criteria of judgment and cause
10-2. Criteria of judgment and cause
Check Criteria of Judgment Cause
Frequency Frequency of V1 is within 45 - 65Hz. - Voltage clip is firmly connected to the
DUT?
- M e a s u r i n g t o o h i g h h a r m o n i c
components?
Voltage input Voltage input is 10% or more of
(Voltage Range x VT).
- Voltage clip is firmly connected to the
DUT?
- Voltage test leads are firmly connected
to the Voltage input terminal on the
instrument?
Voltage balance Voltage input is w
ithin ±20% of reference
voltage (V1)
* (not checked in single-phase wiring)
- Settings are matched with the wiring
system under test?
- Voltage clip is firmly connected to the
DUT?
- Voltage test leads are firmly connected
to the Voltage input terminals on the
instrument?
Voltage phase Phase of voltage input is within ±10º of
reference value (proper vector).
- Volt a ge t es t le a ds a re p ro p er l y
connect
ed?
(Connected to proper channels?)
Current input Current input is 10% or more and 110%
or less of (Current Range x CT).
- Clamp sensors are firmly connected
to the Power input terminals on the
instrument?
- Setting for Current Range is appropriate
for input levels?
Current phase - PFi (absolute value) is 0.5 or more.
(3P3W3A : 0≦PFi)
- Pi is positive value.
- Arrow mark on the Clamp sensor
and the
orientation of flowing current
coincide with each other?
(Power supply to Load)
- Clamp sensors are connected properly?