Product Details
VLF AC HIPOT TEST SET
EPVLF-80/1.1
General Information:
VLF stands for Very Low Frequency. VLF is generally considered to
be 0.1 Hz and lower, its major application is for testing solid
dielectric cable, transformers, motors, generators, switchgear and
other electrical apparatus.
A VLF hipot is just an AC output tester but with an output
frequency of 0.1 Hz or lower rather than 50/60Hz. Although the
frequency is very low, it is still an alternating current with
polarity reversals every half cycle. At 0.1 Hz output, rather than
60Hz, it takes 600 times less current and power to apply an AC
voltage to a capacitive load, like a long cable.
Features:
- Adapts microprocessor controlled, can realize voltage set-up/down,
measuring and protecting automatically. Manual intervention is
allowable even during the auto voltage boosting.
- Touch screen, large LCD can display waveform clearly, and test
report can be printed. Built-in printer
- Multiple protections (overvoltage protection, overcurrent
protection at HV/LV sides). When the output is beyond the
limitation, the control unit will shut itself down within 10ms.
- Easy operation: simple wiring and operation.
- Safe and reliable: the controller and the high-voltage generator
are connected at low voltage, photoelectrically controlled, safe
and reliable to use.
- Closed-loop negative feedback circuit is adopted. No capacity
rising during outputting.
- Large test range: 0.1Hz, 0.05Hz and 0.02Hz multi-frequency
selection, large test range.
- Portable design, small size and light weight: it is very convenient
for outdoor operation.
Specifications
Peak voltage: | 80kV |
Output frequency: | 0.1Hz, 0.05Hz and 0.02 Hz (selectable) |
Fuse: | 20A |
Maximum load capacity: | 1.1μF@0.1Hz, 2.2μF@0.05Hz, 5.5μF@0.02Hz |
Measurement accuracy: | 3% |
Voltage positive and negative peak error: | ≤3% |
Voltage waveform distortion: | ≤5%. |
Working environment: | Temperature: -10ºC-+40ºC, 85%RH. |
Indoor or outdoor, |
Weight: | Control unit:4kg HV unit: 50kg |
Power supply: | 220V 50Hz |
The capacitance of the tested object shall not exceed the maximum
rated capacitance of the instrument. |
More details on VLF testing
30kV/40kV/50kV/60kV/70kV/80kV/90kVplease contact EPHipot, we have
professional tech team to design correctly designed products and
systems.
Company Profile
EP Hipot Electric Co., Ltd has rich experience of more than 20
years in R&D, manufacturing and marketing of market-leading
high voltage test equipment. Passion, knowledge, expertise and
technology drive us to help our customers all over the world, to
maintain their assets value, improve their reliability, reduce
maintenance costs and extend working life of the electrical systems
and related apparatus. Our application specialists also perform on
site trainings and workshops in order to share our knowledge with
customers. We maintain quality control so that you can trust our
products and receive expert help in selecting or servicing
equipment. We are proud of the work we do to help utilities and
electrical contractors keep the lights on and protect critical
loads all over the world.
From the date of order placing, we usually need 3-7 working days to
manufacturing. Located in Wuhan City, the provincial capital of
China, EP Hipot Electric is easy to ship the package by the air or
ocean. EP Hipot Electric also can provide OEM service according
your customized. We are sincerely looking forward to cooperate with
you from all the countries of the whole world.
We understand our customers′ requirements and we supply the most
advanced solutions for testing their electrical apparatus. Our test
equipment is designed and produced according to the most widely
adopted international standards. The test sets are crafted one by
one, using the best available technology and according to ISA 9001
Quality System. We supply rugged products all over the world and
thanks to the network of qualified service centers on all
continents we perform after sale service and quick support as well
as assistance to our customers.