VLF-40 0.1Hz Cable AC Withstand Voltage Test System

VLF-40 0.1Hz Cable AC Withstand Voltage Test System

Introduction

    Ultra-low frequency insulation withstand voltage test is actually an alternative method of power frequency withstand voltage test. As we know, when power frequency withstand voltage test to large generators and cable, it needs to test transformer or resonant transformers with large capacity because their insulation layer are with big capacitance. Such huge equipment, not only weight heavy, high cost and application is also inconvenient. In order to solve this problem, Power Sections adopt reducing the test frequency, thus reducing the capacity of the test power supply.

    0.1 Hz AC withstand voltage test alternative power frequency withstand voltage test, not only can have the same equivalence, but also have much less volume of equipment and greatly reduce the weight.
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Details

Features:
On-site application:
Technical Data:
Model
Rated voltage
Load capacity
Power fuse
Weight
Application
VLF-40
40kV(peak value)
0.1Hz, =1.1μF
10A
Controller: 4kg
Step-up: 25kg
=10kV cable
0.05Hz, =2.2μF
0.02Hz, =5.5μF
VLF-90
90kV(peak value)
0.1Hz, =1.1μF
35A
Controller: 5kg
Step-up: 60kg
=35kV cable
0.05Hz, =2.2μF
0.02Hz, =5.5μF
Input voltage
100-240V 50/60Hz
Output current (accuracy ±1%)
Resolution
0-44mA

10μA
Output frequency
0.02....0.1Hz, increments of 0.01Hz, default is 0.1Hz
Output mode
AC ultra-low frequency AC symmetrical high voltage test, in all test ranges, the waveform is not affected by the load

DC high voltage direct current test positive or negative polarity

Fault cable burn-through mode or fault trip mode

Outer sheath or shielding layer test mode
HV cable
4.5m HV output cable with alligator clip
Accuracy
3%
Parameters
Voltage and current (effective value and peak value)
Capacitance, resistance, time, flashover voltage
Test method
Continuous test
Communication Interface
RS232 interface (including software),USB
Temperature
Store :-25℃ to +70℃ Operation:-5℃ to +45℃
Size
≤450 x 340 x 520 (mm)

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