ALT Series - AC High Voltage Aerial Lift Dielectric Test Set

0 – 60 / 120 kV AC Power Frequency AC Hipot

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Features and Benefits

The ALT-120/60 and ALT-120/60F from our ALT Series of field portable AC hipot test sets are primarily designed for testing the dielectric strength of aerial lifts, booms, bucket trucks and liners per the ANSI 92.2 standard. With a continuously adjustable AC voltage, 2 range voltmeter, multi range current meter and built in timer, the ALT Series are also a great choice for a pass/fail, AC over-voltage withstand testing on larger capacitive loads such as switchgear, buss duct or other substation apparatus. A gapped core transformer for up to 7.2 kVA of output power with the draw of 3.6 kVA so the hipot can be powered by a 30A, 120Vac or 15A, 230Vac input. For lower power requirements please see our PFT Series and ABT Series. For higher power requirements see our FPA, HPA and PAR lines.

  • Secondary connected 2 Range Voltmeter: 0-30/60kV & 0-60/120kV
  • 2 Range Current Meter: 0-250uA and 0-1.0mA with x1, x10, x100 multipliers
  • Full 7.2 kVA, 60kV tap for bucket liner testing
  • Fixed overload set to 120% of variable transformer rated output current
  • Transit protected meters prevent meter damage between test sites
  • Guard/Ground circuit for accurate leakage current measurement
  • Gapped core transformer design for capacitive load compensation
  • Zero Start and External safety Interlock provisions

Specifications

Input: (ALT-120/60) 120 V, 60 Hz, 30 A
(ALT-120/60F) 230 V, 50/60 Hz, 15 A
Output: 0-120kV AC / 0-60 kV AC, 3.6 kVA resistive load
Up to 7.2KVA capacitive load (1.3 nF @ 120kV or 5.3nF @
60kV, 60 Hz) Output current is reduced at lower voltages
Duty: 7.2 kVA: 1 hour ON, 2 hour OFF
4 kVA: continuous
Voltmeter: 3.5”, scaled 0-30/60kV & 0-60/120kV kV AC, ±2% F.S.
Current Meter: 3.5”, scaled 0-250uA and 0-1.0mA ±2% F.S. with rangemultipliers of x1, x10, x100
Distortion: Less than 5%
Size and Weight:
(W x D x H)
Case:
21 x 11.25 x 15.25 in., 46 lb.
534 x 286 x 387 mm, 21 kgHV Tank:
15.5 x 15.5 x 27.5 in., 160 lb.
394 x 394 x 699 mm, 73 kg
Output Termination Top toroid (0-120 kV)
1 inch ball side tap (0-60 kV)
Scope of Supply 20ft black ground lead, 20ft shielded return cable, external interlock plug, handtruck, operations manual, calibration certificate

ALT Series: Other models are available from 100 kVac – 300 kVac, 7.2 kVA

Other Downloads

Optional Accessories

Hand & Foot Safety Switches

  • PN 90-405
  • PN 90-410

Safety Ground Sticks

  • 10 inch PN 88-113
  • 14 inch PN 88-150

Optional Upgrades

  • Digital Metering – Add Suffix “D”
  • Secondary Capacitance
  • Cancellation Circuit – PN 90-225
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