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Technical Specification: VLF 20kV RMS

Introduction

VLF testing is the proven replacement for the traditional DC Hipot Acceptance or 'Proof' test. With more than 700 very Low Frequency (VLF) units sold, and over 16 years
of field use, HDW offers the only VLF units which are capable of measuring true leakage current. Our VLF technology provides the most meaningful test results because it is the only one on the market that replicates the stress of 60 Hz 'Operational AC' Voltage.
 
 

AC VLF Output voltage:
0-20 kV eff  (RMS),( 28kV Peak)

DC Output Voltage:
0-20kV

AC VLF Frequency
0, 1 Hz true sinusoidal transition output,
always independent of load

Testable Cable Capacity:
3µF max.
(can test several phases per test)

Voltage Shape:
 Cosine Rectangular Wave

Change Over Slope
 Approx. 5 ms,
 replicates Operational 60 hz AC/p>

Leakage Current Measurement
Both for AC VLF & DC operation
 0-5 mA    (Optional)

Discharge Unit:
10 µF in 3 s
(safely grounds cable under test integrated)
 
Power Supply:
120 V, 60 Hz, approx. 5 A
230 V, 50 Hz, approx. 2.5 A

Operating Temperature:
 -20°C to +40°C
 (-4°F to +104°F)

Dimensions: (W x H x D) = 20" x 12" x 24"

Weight:
110 lb.

NOTE:
Inquire about HDW's 27kV, 40kV,
& 60kV RMS
.1Hz VLF test equipment for distribution 
circuits.

Custom designed units for higher voltages &
charging capacitances are available on request


Cable Master Inc. 160 Pony Dr. #6A, Newmarket, ON, L3Y 7B6
905-715-7303 | Toll Free: 877-715-7303 | Fax: 905-715-7305 info@cablemasterinc.com