ZLCD**3 zinc oxide arrester with electric testing instrument is
dedicated and used to verify electric performance of zinc oxide
arrester, it is suitable for all kinds of voltage level zinc oxide
arrester with and without electric testing, thus detect moisture
inside the device and valve insulation aging and other dangerous
defects.
Instrument is easy to operate and use, microcomputer control the
whole process, can measure zinc oxide arrester' s full current,
resistive current and its harmonic wave, power frequency reference
voltage and harmonic wave, active power and phase difference, big
screen can display real waveform of voltage and current. Instrument
is using digital wave analysis technology, adopts harmonic analysis
and digital filtering and so on software resisting interference
method which makes testing result to be accurate, stable, can
analyze accurately fundamental wave and 3 ~7 harmonic content, and
can overcome the impact of interference between phases,
correctively measure resistive current of side phase arrester.
Features:
I. Instrument standard
configure do not include high power lithium ion battery, but
can select internal equipped one,
II. 5.7 inch **0×**0 LCD
screen, high speed thermal printer; photo and context display and
intuitive interface, it is easy for onsite operation and use,
III. It is suitable and used
for arrester with power、no power and lab room and so on please.
IV. Current, voltage sensor is
totally quarantined,safe and firmly. Really do 3 phases current
and 3 phases voltage testing at the same time, improve working
efficiency,
V. Instrument can do test
consecutively, display voltage and current curve and quick
printing data and curve.
VI. Internal equipped memory, can
store **0 sets testing data with power off.
VII. Select equipped RS**2 communication
connector, can do test by upper computer and extract testing
data.
VIII. Can do anti-interference calculation, to
offset current of phase A, phase C from the deviation of B phase.
IX. High speed sampling
frequency, advanced digital signal process technology, strong
anti-interference ability, super high accuracy of testing result.
X. Select equipped high power
lithium ion battery, very helpful for no power place. Instrument
only have weak electric, voltage is no more than *2v, and can
work in charging status.
XI. Adopt dust-proof, water-proof,
anticorrosion engineering plastic sealed box, small size, light
weight, easy for hand carry.
Parameters:
I. Working
power: AC**0V/*0Hz, if select equipped high power lithium ion
battery, internal battery for power supply, charging time >3
hours, consecutive working time>8 hours,
II. Measurement
scope:
Leakage current:***0mA (scalable),
voltage:*****0V ( scalable ),
III. Measurement
accuracy:
Current: full current>**0μA, ±5% reading ±1 bit,
Voltage: reference voltage signal >*0V，±2% reading ±1 bit,
IV. Measurement parameter:
Leakage current full current wave form、reference wave valid
value、peak value.
Leakage current resistive component reference wave valid value
and 3, 5, 7 times valid value.
Leakage current resistive component peak value: positive peak
value Ir+ negative peak value Ir-.
Capacitive current reference wave, full voltage, full current
and phase angle difference.
Voltage effective value.
Arrester power lost.
V. Voltage reference
signal sampling method: *0 meters (scalable)
VI. Instrument size: host
**0mm×**0mm×**0mm
VII. Weight: host 5.0kg
