Very Low Frequency Insulation Tester

This very low frequency (VLF) tester is designed for assessing electrical insulation integrity in cables and motors. It applies a low-frequency AC voltage to detect insulation defects by measuring the resulting current.

VLF Very Low Frequency Tester - Image 1

Technical Specifications

Product Overview

About the Very Low Frequency Insulation Tester

The Very Low Frequency (VLF) Tester is a high-precision instrument engineered for insulation integrity testing of power cables and generators. By utilizing ultra-low frequency testing, it provides an efficient and effective method to identify insulation degradation, such as water trees and partial discharges, with high sensitivity. This portable system features adjustable frequency and voltage settings to accommodate diverse diagnostic requirements in power systems and industrial facilities.

Technical Specifications

Model Specifications

ModelRated Voltage/CurrentController WeightBooster Weight
VLF-3030kV/20mA4kg25kg
VLF-5050kV/30mA4kg50kg
VLF-8080kV/30mA4kg25-50kg

Output Frequencies
0.1Hz0.05Hz0.02Hz
Measurement Error
< 3%RDG+0.3%FS
Voltage Waveform Distortion
< 5%

Operating Environment

Operating Temperature

0 °C
Min Temp
50 °C
Max Temp

Power Supply
AC220V ± 10%, 50Hz/60Hz
Maximum Humidity
85 %RH

Logistics

Warranty Period
12 months
Delivery Time
7 working days

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