Megger Detex 510836 Series, Инструкция по эксплуатации

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Voltage Detection - Detex
®
Analog Voltage Detectors
WARNING
The test equipment must be held on the power
line for a minimum of 3 seconds.
Touch for
at least 3 seconds
the contact forks or hooks of the detector
element pole and the auxiliary element pole to two conductors or parts to
be tested. The meter will respond to the voltage betw een the two parts. In
cases where both the detector and auxiliary element poles are touching
different phase conductors of grounded or ungrounded systems, the meter
response will be phase-to-phase voltage. If the detector element pole is
touched to a conductor and the auxiliary element pole touched to the
ground bus of grounded systems, the meter responds to the phase-to-
ground voltage. Phase-to-ground voltage is the result of phase-to-phase
voltage divided by 1.732 (the square root of 3).
For example,
34,500 V phase-to-phase/1.732 = 19,919 V phase-to-ground.
Testing Phase Connections - Detex
®
Analog Voltage Detectors
After having checked, by the previously described detection methods, the
presence of voltage on each of the conductors of each of the two circuits,
use the following method to identify conductors of the same phase.
WARNING
The test equipment must be held on the power
line for a minimum of 3 seconds.
CAUTION
Do not attempt to check phasing between two
circuits when either or both circuits are
ungrounded systems unless both circuits
originate from the same supply transformer
winding. Meter indication is unpredictable.