
User Manual
3 Introduction
The TD30 model is an easy to use, single piece, Digital Signal Processor based, field
portable, fully automatic VLF (Very Low Frequency) high voltage measurement instrument
developed for the high potential measuring of the insulation dielectrics of various types of
electrical apparatus.
4 Features
•Lightweight, portable, battery powered unit
•Solid state air insulated design
•Suitable for use with the HVA30 VLF test systems.
•Test results are easily stored via Notebook Computer or PocketPC via wireless
Bluetooth® connection.
•Supplied complete with TD communication and analysis software – TD Control
Center.
•Real-time display of actual output waveform.
•Power Save (Sleep) function (1 hour of inactivity), automatic wakeup on reapplication
of high voltage. One-Click reconnect in ControlCenter after Sleep
5 Applications
The TD30 provides the testing and commissioning engineer/technician with a versatile
high voltage tan delta measuring system suitable for testing medium voltage electrical
insulation systems such as cables (including: XLPE, PE, EPR, PILC, etc.), capacitors,
switchgear, transformers, rotating machines, insulators and bushings.
Tan Delta testing enables the cable test engineer to detect insulation defects before the
cable fails in service. The TD30 is a versatile tan delta measuring system that is directly
connected to the HVA series of VLF test systems from HV Diagnostics. The tan delta test
results of the test object can now be easily measured and recorded and the results stored
on a standard PC or Laptop for analysis, trending or quality control. This enables the
cable engineer to now make tan delta testing a routine maintenance test.
The TD30 is a battery powered system that is directly connected to the HVA30 series of
VLF test systems. Standard “C” size alkaline or rechargeable battery cells that are
commonly available will last up to 10 hours of continuous operation.
The TD30 is supplied with 30 feet /10 meters of terminated output cable to plug directly
into the HVA30 test system and is supplied complete with operating software which gives
a complete picture of the tan delta measurement together with a real time display of the
output voltage and current. The data transmission to standard notebook PC or PDA that
is Bluetooth® enabled, thus eliminating a direct connection between the TD30 and the
data collection device.