HVTS-70/50 is designed for high-voltage testing of solid dielectrics with low and medium electric capacitance (power cables, switchgear, surge arresters, busbars, insulators, etc.) with DC (rectified) voltage up to 70 kV and high-voltage testing of other objects with AC voltage up to 50 kVRMS at industrial frequency (f = 50 Hz).

The system can be used for both field and laboratory testing.

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Hvts hp ac dc  1200x831 2


Hvts hp ac dc  1200x831 2

The system features both DC (rectified) and AC output voltage modes, which allows testing electrical equipment according to various standards using only HVTS-70/50 system.

Output voltage mode is selected by pressing a button on the control unit - no additional equipment installation such as rectifier etc. is required.


Hvts 70 50 cu6 1200x831

The system allows to carry out tests in both fully automatic and manual control modes.

In the manual mode, the output voltage level and ramp up rate are controlled by the operator via a rotary encoder.

In the automatic mode, the test voltage is automatically increased at pre-defined ramp up rate and is held on the required level before being reduced to zero upon completion of the test cycle.

Switching between control modes is done by simple push of a button.

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Hvts 70 50 panel 1200x294

HVTS-70/50 systems feature a digital graphic display indicating all the test settings and operating parameters.

A graphical menu provides such advantages as multilingual user interface, test reports viewing, saving test pre-sets, etc.

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Hvts 70 50 komponovka 01 1200x831


Hvts 70 50 komponovka 01 1200x831
Hvts 70 50 komponovka 02 edit

The system comprises of two separate modules: the control unit and the high-voltage unit.

The test process is controlled from the control unit while an object under test is connected to the high-voltage unit.

Such two-module design allows an operator to remain at a safe distance away from the high-voltage circuit and the object under test.

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Hvts 70 50 ekran 1200x831

Detailed results of each test are saved in the non-volatile memory of the system.

Test reports can be viewed from the control unit’s display.


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The high-voltage unit is equipped with an automatic grounding device – an auxiliary protective solution for discharging an object under the test and the high-voltage circuit of the system.

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Hvts 70 50 kompakt 1200x831


Hvts 70 50 kompakt 1200x831

Small weight, compact size and portable design of both units of the system enable rapid deployment, quick reconnection and operational comfort during the field testing.

The system can be supplemented with a convenient trolley for easy transportation.


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The high-voltage unit contains a step-up transformer with oil insulation which works reliably under almost any conditions and does not require extra care or special maintenance.

Hvt 70 50 vv 00 1200x831 edit
* Pictures used herein are for illustration purposes only. Products' specifications are subject to change without notice. *

Technical Specifications
DC testing parameters Voltage Output level up to 70 kV
    Measurement error ± [3 % + 2 dgt]*
  Current Output level up to 25 mA
    Measurement error ± [3 % + 2 dgt]
AC testing parameters Voltage Output level up to 50 kVRMS
    Measurement error ± [3 % + 2 dgt]
  Current Output level up to 40 mARMS
    Measurement error ± [3 % + 2 dgt]
System parameters Test modes  

• Manual

• Auto

  Load capacitance in AC mode @ rated output voltage   up to 1.6 nF
  Voltage ramp rate   0.5 … 4.0 kV/s, step 0.5 kV/s
  Internal memory   32 test reports
  Custom timer pre-set range   0:10 … 59:59 min
Interface Monochrome graphical display   128×64 px
  Interface languages  

• RU, EN

• TR, PL, FR, etc. (option)

Safety Protection  

• Over-voltage tripping

• Over-current tripping

• Thermal overload warning

Power supply and consumption Supply voltage   230 V ± 10 %, AC, single phase (110 V optional)
  Supply frequency   50 Hz (60 Hz optional)
  Power consumption   up to 2,5 kVA
  Current consumption   up to 10 A (up to 15 A if powered from 110 V)
Physical CU dimensions, H×W×D   265×349×240 mm
  CU weight   13 kg
  HVU dimensions, H×W×D   500×360×310 mm
  HVU weight   35 kg

* The measurement error of a digital tester is specified by the expression: ± [xx% rdg + xx dgt], where the first portion identifies a percentage error relative to the reading, which means it is proportional to the input. The second portion is an error in digits that indicates the counts on the last significant digit of the digital display (the lowest digit in a number, located at the far right of a string). The error in digits is constant regardless of the input and is typically used to represent an error factor of a digital tester.

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