HVTest PDF1000, Manual

Page: 6 / 16

6
I. Overview
This product is DC ground fault tester of new generation. It applies to all
DC system in any voltage class, equipped with high-precision measured clamp
meter, expanded the measured range and strengthened the anti-interference
ability by processing many kinds of signal. Adopted excellent method of
calculation and advanced Fuzzy control calculation theory, show us the
advancement of the measured circuit branch by numerical value, which reflect
the superiority of artificial intelligence sufficiently. Correctly detect the position
of the ground point each time.
This equipment take system safety as primary premise uses reliable low
frequency signal method to test according the highest requirements of industry
standard, and put into practice for test on site, no effects to system.
The DC system of power plant and transformer substation is the power
supply for control, protect, signal and auto equipment, the safe continuous
running is very important to generate and supply power. The DC system is
overhead ungrounded system, it will induce the mentioned device wrong or
failure to act if there was two points grounded. So correctly and fast to detect
the ground contact, clearing of the ground fault meanwhile ensure the DC
system normally supply power, to avoid the damage caused by two points
grounded.
This device applies to detect the accurate ground point position of power
plant, transformer substation DC system. Accuracy up to 100%.
This device with the bellowing advantages compared with the same type
devices:
1. Easy to use, customers can directly operate only need turn on the
power switch.
2. Safe and reliable, do not need power off the charger or other power
source, without effects to DC system.
3. Applies to various voltage class, DC system V, 110V, 48V, 24V.