Very low frequency ac testers, Hvi – the world’s vlf source – Atec High-Voltage-VLF-28CMF User Manual

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HIGH VOLTAGE, INC.

31 County Route 7A • Copake, NY 12516 • (518) 329-3275 • Fax: (518) 329-3271 • www.hvinc.com

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Very Low Frequency AC Testers

AC testing of cables and electrical

apparatus is now easier than ever.

Since the introduction of the High Voltage, Inc. line of

portable and affordable VLF hipots, there is a practical

method of AC field-testing various loads, particularly

cables and rotating machinery. High Voltage, Inc. offers a

full line of VLF AC Hipots from 28 kVac to 200 kVac with

models that can test up to 50mF of load, cables over 50

miles in length and the largest of generators/motors. Use

VLF for AC stress tests and/or as a voltage source for

Tan Delta and Partial Discharge cable diagnostic testing.

HVI offers more models and higher voltage mod-
els than any other vendor in the world. Models
range from 28kV – 200kV, offering from 0.4mF to
50mF of load capability.

HVI – The World’s VLF Source

Nearly 70 countries served since 1998

• Greatest Model Selection
• Highest Voltages Available
• Highest Power Ratings Delivered
• Only VLF Thumper Produced
• Rugged oil filled non-electronic
design offers extreme reliability and
ease of field service if ever necessary

SINCE 1998

, HVI has produced the most rugged and reliable

VLF products available. Our electro-mechanical control and our
oil filled HV power supply designs are extremely dependable, and
if necessary, more easily field serviced than the electronic designs
of others. The HVI design has a proven record with nearly 1100
units in service in 70 countries.
The HVI VLF design offers the
best of everything, with manual, easy to use controls but also
sophisticated data collection. Electric utilities and industrials
have long recognized the benefit of our technology. HVI knows
how to build long lasting field test equipment.

The HVI VLF design produces a sine wave output that meets

all requirements of world standards, permitting it to be used
as a voltage source for Tan Delta and Partial Discharge cable
diagnostic testing. Non sine wave producing VLF designs are
limited in this ability and may reduce the users’ options in the
future to use the VLF for diagnostic testing. Stick to the HVI sine
wave producing VLF.

The HVI VLF technology is protected

under U.S. Patent # 6,169,406

VLF-28CM

0-28 kVac, 0.1 Hz, load rated to 0.4

m

F

VLF-4022CM 0-44 kVac, 0.1 Hz - 0.02 Hz, load rated to 5.5

m

F

VLF-50CM

0-50 kVac, 0.1 Hz - 0.01 Hz, load rated to 50

m

F

VLF-6022CM 0-62 kVac, 0.1 Hz - 0.02 Hz, load rated to 5.5

m

F

VLF-65CMF

0-65 kVac, 0.1 Hz - 0.01 Hz, load rated to 22

m

F

VLF-90CMF

0-90 kVac, 0.1 Hz - 0.02 Hz, load rated to 2.75

m

F

VLF-12011CMF 0-120 kVac, 0.1 Hz - 0.01 Hz, load rated to 5.5

m

F

VLF-200CMF 0-200 kVac, 0.1 Hz - 0.02 Hz, load rated to 3.75

m

F

VT33

VLF Thumper, 0 – 33kVac, 1uF @ 0.1Hz

13kV @ 760 joules discharge, TDR ready

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