120 volts, 60 Hz, 5 A peak, 2.5 A average or 230 volts,
50/60 Hz, 3A peak, 2A average (F suffix)

0 � 28 kVac peak, 0.1 Hz, sinusoidal

Continuous

0.4�F

Voltmeter: -30� 0 �+30kVac Charging
Current meter: 0 � 50 mA peak

Shielded EPR output cable - 20 ft. (6 m)

15� w x 11.5� d x 22� h, 75 lbs. 381 mm x 292 mm
x 559 mm h, 34 kg
Input


Output

Duty

Load Rating

Metering


HV Cable Output

Size & Weight
SPECIFICATIONS
VLF-28CM(F)
PROOF TESTING EQUIPMENT : VLF SYSTEMS
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SPECIFICATIONS
VLF-4022CM(F)
Input


Output

Duty

Load Rating

Metering



Cable Length


Size & Weight
120 volts, 60 Hz, 10 A peak, 5 A average or 230 volts,
50/60 Hz, 6 A peak, 2.5 A average (F suffix)

0 � 44 kVac peak, 0.1/0.05/0.02 Hz sinusoidal

Continuous

1.1�F @ 0.1 Hz, 2.2�F @ 0.05 Hz, & 5.5�F @ 0.02 Hz

Voltmeter: Center Zero -40 � 0 � +40 kVac peak
Charging Current meter: 0 � 100 mA peak
Load capacitance meter: 0 � 6 Microfarads

Shielded RG/8U output cable - 20 ft. (6 m)
Interconnect cable - 10 ft. (3 m)

Controls: 22� w x 11.25� d x 15.25� h, 50 lbs. 559 mm
x 286 mm d x 387 mm h, 23 kg
HV Tank: 14.5� w x 10.5� d x 19� h, 72 lbs. 368 mm w
x 267 mm d x 483 mm h, 33 kg
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VLF-6022CM(F)
SPECIFICATIONS
Input


Output


Duty

Load Rating

Metering




Cable Length


Size & Weight
120 volts, 60 Hz, 15 A peak, 7.5 A average or 230 volts,
50/60 Hz, 8 A peak, 4 A average (F suffix)

0-60 kVac peak @ 50Hz, 0.1 Hz - 0.02 Hz,load rated
to 5.5 �F 0 - 62 kVac peak @ 60Hz

Continuous

1.1 �F @ 0.1 Hz, 2.2 �F @ 0.05 Hz, & 5.5 �F @ 0.02 Hz

Voltmeter: 0�60 kVac peak
Charging Current meter: 0 � 100 mA peak
Load capacitance meter: 0 � 6 Microfarads
Settable test duration timer

Shielded EPR output cable - 20 ft. (6 m) Interconnect
cable - 10 ft. (3 m)

Controls: 26� w x 13� d x 16� h, 75 lbs. 660 mm w x
330 mm d x 406 mm h, 34 kg
HV Tank: 15� w x 10.25� d x 21.5� h, 120 lbs. 381 mm
x 260 mm d x 546 mm h, 54 kg
VLF-65CMF
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SPECIFICATIONS
Input


Output


Duty

Load Rating

Metering




Cable Length


Size & Weight
120 volts, 60 Hz, 15 A peak, 7.5 A average or 230 volts,
50/60 Hz, 8 A peak, 4 A average (F suffix)

0-60 kVac peak @ 50Hz, 0.1 Hz - 0.02 Hz,load rated
to 5.5 �F 0 - 62 kVac peak @ 60Hz

Continuous

1.1 �F @ 0.1 Hz, 2.2 �F @ 0.05 Hz, & 5.5 �F @ 0.02 Hz

Voltmeter: 0�60 kVac peak
Charging Current meter: 0 � 100 mA peak
Load capacitance meter: 0 � 6 Microfarads
Settable test duration timer

Shielded EPR output cable - 20 ft. (6 m)
Interconnect cable - 10 ft. (3 m)

Controls: 26� w x 13� d x 16� h, 75 lbs. 660 mm w x
330 mm d x 406 mm h, 34 kg
HV Tank: 15� w x 10.25� d x 21.5� h, 120 lbs.
381 mm w x 260 mm d x 546 mm h, 54 kg
Our smallest VLF model, the VLF-28CM approaches
the size and cost of a DC hipot and is designed for quick
& easy short-run cable testing. It can test up to 0.4 �F
of load, or up to 4000 feet (1200 m) of a typical 15 kV
class cable. Small, light, inexpensive. Now there is no
reas on not to use VLF.
This model, with its 44 kVac peak output, is suitable for
testing cables rated up to 25 kV. Its high load capacity
enables it to test up to approximately 10 miles of
cable, depending on type. This model includes a
charging current and load capacitance meter, and a
center zero peak kilovolt output meter.
This model, with its 60 kVac peak output, is suitable
for testing cables rated up to 35 kV. Its high load
capacity enables it to test up to approximately 10
miles of cable, depending on type. is model includes
an enhanced features package: a charging c urrent
and load capacitance meter, test dwell timer, and
polarity indicating lights.
This model, with its 60 kVac peak output, is suitable
for testing cables rated up to 35 kV. Its high load
capacity enables it to test up to approximately 10
miles of cable, depending on type. is model includes
an enhanced features package: a charging c urrent
and load capacitance meter, test dwell timer, and
polarity indicating lights.
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VLF-90CMF
SPECIFICATIONS
Input

Output

Duty

Load Rating

Metering




Cable Length


Size & Weight
The VLF-90CMF offers 90kVac peak output voltage, suitable for
testing cables rated 45 � 50kV. It is load rated for 0.55mF
@ 0.1Hz, capable of testing up to 2 miles of cable, five times that
at 0.02Hz. Pictured with optional hand truck.
230 V, 50/60 Hz, 20A peak, 15A average

0-90 kVac peak, 0.1/0.05/0.02 Hz sinusoidal

Continuous

.55 mF @ 0.1 Hz, 1.1 mF @ 0.05 Hz, 2.75 mF @ 0.02 Hz

Voltmeter: 0-100 kVac peak
Current Meter: 0 � 100 mA peak
Load capacitance: 0 � 6 microfarads
User programmable test duration timer

Shielded EPR output cable � 20 ft. (6m)
Interconnect cable - 10 ft. (3m)

Control: 26� w x 13� d x 16� h, 75 lbs. 660 mm w x
330 mm d x 406 mm h, 34 kg
HV Tank: 15� w x 21� d x 29� h, 293 lbs.
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VLF-12011CMF
The VLF-12011CMF provides a 120kVac peak output voltage,
suitable for VLF hipot testing 69kV cable and as a voltage source
for partial discharge and tan delta testing of 115kV cable.
In addition to the standard controls described, this model also
contains a Cable Burn mode. Cable reels provide 100� (30m) of
HV and ground cable.
SPECIFICATIONS
Input

Output

Duty

Load Rating


Metering




Cable Length


Size & Weight
230 volts, 50/60 Hz, 30A peak, 25A average

0-120 kVac peak, 0.1/0.05/0.02/0.01 Hz sinusoidal

Continuous

.55 mF @ 0.1 Hz, 1.1mF @ 0.05 Hz
2.75 mF @ 0.02 Hz, 5.5mF @ 0.01 Hz

Voltmeter: 0-120 kVac peak
Charging Current Meter: 0 � 100 mA peak
Load capacitance meter: 0 � 6 microfarads
User programmable test duration timer

Shielded EPR output cable 100 ft. (30m) Ground cable
100 ft. (30m)

Controls: 17� w x 11� d x 9.5� h, 20 lbs.
432mm w x 280mm d x 241mm h, 9 kg
Regulator: 20� w x 14� d x 27� h, 160 lbs.
508mm w x 356mm d x 686mm h, 73 kg
HV Tank: 26� w x 20� d x 22� h, 390 lbs.
660mm w x 508mm d x 559mm h, 177 kg
Overall: 30� w x 60� d x 51� h, 853 lbs.
762mm w x 1524mm d x 1295mm h, 388 kg
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VLF-200CMF
The VLF-200CMF provides a 200kVac peak output voltage, suitable
for performing VLF hipot tests on 138kV cable and as a voltage
source for tan delta and partial discharge testing on 230kV cable.
The controls offer all the features of our other VLF models along with
VLF Cable Burning. Trailer mount optional.
Input

Output


Continuous

Load Rating

Metering


Control




Size & Weight
SPECIFICATIONS
230V Single phase, 80A peak, 50/60Hz

0 � 200kVac peak, 100mA. Bushing output with no
cable provided

Continuous

.75mF @ 0.1Hz, 1.5mF @ 0.05Hz, 3.75mF @ 0.02Hz

Voltage: 0 � 200kVac peak 3.5� analog display
Current: 0 � 200mAac 3.5� analog display

HV On/Off, Motorized Voltage Control, Zero Start Interlock, External Interlock, Digital Dwell Timer, Capacitance Measuring Circuit, Cable Burn Mode,
Fixed 120% Overload, Automatic Data Logger

Controls: 24�w x 25.5�d x 71�h, 650lbs.
61cm h x 65cm w x 180cm h, 295kg
HV Tank: 59�w x 37�d x 87�h, 3700lbs
155cm w x 93cm d x 220cm h, 1678kg
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VLF FAULT LOCATOR COMBINATION : VT33(F)
The VT33 is the worlds only combination VLF hipot and cable fault
locator, or thumper. It is the complete tool for AC testing and fault
locating cables rated up to 25kV. It offers a 33kVac peak VLF
output, VLF Cable Burn mode, and a 760 joule discharge output.
It is fully TDR/radar ready.
SPECIFICATIONS
Input

VLF Hipot Output


Load Capacity

Discharge Output

Discharge Rate

VLF Burners

TDR Interface

Size & Weight


Cable Outputs
VT33: 120V, 60 Hz, 10A
VT33F: 230V, 50/60 Hz, 5A

0 � 33 kVac peak @ 0.1 Hz

1�F or more than 1 mile (1.6 km) of 15kV & 25 kV cable

0 � 13 kVdc @ 760 joules

Every 8 seconds

Arcs cable every few seconds

Arc Reflection & Current Impulse

28�w x 26�d x 44�h, 245 lbs.
711mm w x 660mm d x 1118mm h, 111kg

50� (15m) shielded HV cable & ground
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