Tech Talk & Teach: Helpful Info and Tips from HVI

The TTT Section of the HVI Knowledge Center is designed to help our customers find the information and answers to their questions needed to best operate our high voltage products safely and efficiently. Here will be found many answers to commonly asked questions covering most product line areas, tech tips on special features or circuits unique to our products, engineering presentations discussing today’s technologies and methods for testing, slide presentations describing our products and their use for various testing applications, and many other helpful notes and files. 

This is for you, so please feel free to offer any suggestions you have for us to improve this service.

Tech Talk & Teach

Very Low Frequency 0.1 Hz Ac: VLF SERIES
VLF FAQ – Frequently Asked Questions
PDF
200 kV VLF: Specs and Packaging
PDF
200 kV VLF: Various Design Configurations
PDF
VLF Cable Test Voltages per IEEE400.2-2013
PDF
MV Cable Tests Performed with VLF
PDF
VLF vs. Tan Delta vs. Partial Discharge
PDF
Testing Multiple Cables at Once
PDF
Very Low Frequency 0.1 Hz Ac: VLF-E SERIES
VLF-E Series Advantages
PDF
VLF-34E & VLF-65E Load Capability Charts
PDF
E-Link VLF Operating & Data Reporting Software.
PDF
VLF Cable Test Voltage per IEEE400.2-2013
PDF
Tan Delta Cable Diagnostics: TD SERIES
TD FAQ
PDF
VLF-E Series Advantages
PDF
TD-34E Discontinued
PDF
VLF Testing vs. Tan Delta vs. Partial Discharge Explained
PDF
200 kV VLF Model: Packaging Options
Cable Fault Locators
CFL FAQ
What is Controlled, or Constant, Energy?
Why Three Output Voltage Taps?
Burn Current – What’s that used for?
Cable Fault Locators: CDS, SKD SERIES
What is a Constant Energy Thumper?
PDF
VLF Thumper Combo – What can it do?
PDF
Cable Testing & Fault Locating Packages (also refer to the SKD Series product line)
PDF
Network Fault Locating
Aerial Lift Testers: ALT, PTS, DTS SERIES
Aerial Lift Test Sets
PDF
ALT Advantages
PDF
Boom and Bucket HV testing – AC or DC Voltage?
Testing Hydraulic Boom Fluids? What is the standard?
Testing Truck Liners: AC or DC high voltage?
Which Model for Each Class of Truck to be Tested?
Parallel Resonant Technology: PAR SERIES
Parallel Resonant Technology
PAR Series Overview
PDF
Application – AC Testing High uF Loads with PR
PDF
AC Dielectric Test Sets: PFT & HPA SERIES
AC Dielectric Test Sets – Model & kVA Selection
PDF
Knowing the kVA or Load Current Needed
PDF
AC Hipot Inductive Input Compensation
PDF
Burn Mode – What is it, Why, & When to Use
PDF
D-149 Series
PDF
Not for Cable Testing – Most models
How to choose the kVA or load current needed.
How much AC load current can be expected based on hipot ratings?
Examples of Test Currents Needed
Inductive Compensation – What is it?
Burn Mode – What is it, Why, & When to Use
DC Hipot/Megohmmeter Combos: PTS SERIES
PTS Series Advantages
PDF
What is Guard/Ground Current Mode?
PDF
Oil Dielectric Testers: DTS & DTS-A SERIES
DTS Series FAQ
PDF
Caution: Charging Load – How to Discharge?
1% Input Voltage Regulator on 37.5 kV and 75 kV models.
Megohmmeter Readings Possible
What is Guard/Ground Mode?
Oil Dielectric Testers
How to Perfrom Tests
Caution: Voltage Flash-Over Indication May Read Low
Concentric Neutral Tester: OCK SERIES
Concentric Neutral Resistance Tester : the Ω-Check
PDF
Ω-Check Concentric Neutral Tester Users Guide
PDF
Ω-Check Readings Less than One
PDF
What is the Ω-Check Used For
What Else Can be Used?
IEEE-XXXX-20…. Standard
HV AC/DC Dividers: DVR SERIES
What Measurment Instrument can be Used?
Applications & Ratings
Inductive Input Compensation in AC Hipots
PDF
Burn Mode Feature – What is it?
PDF
Guard & Ground Return Current Modes
PDF
Secondary Capacitive Current Cancellation Circuit
PDF
Multi Output Ratings: Voltage vs. kVA vs. Current
PDF
Selecting an AC Hipot kVA Rating; How Much Current is Needed?
PDF
HV AC Test Sets: Models Available & Selecting the kVA
PDF
Maximum Output Current from AC Hipots: PFT & ALT Series
PDF
No HV Cable Output for > 50 kVac Hipots
PDF
VLF Testing all Three Cables
PDF
Current Return Lead – Ground or Guarded Return post?
PDF
Vacuum Bottle Testing: Use AC – not DC Voltage. The HVI Differences
PDF
Maximum Output Current from AC Hipots: PFT & ALT Series
AC Hipot Model Selection – Voltage & Current Needed?
PDF
What type of oil is used for high voltage tank insulation?
AC Hipots with captured HV output cable, like PFT-503CM – Silicon Oil only.
Leakage Current Measurements? – Use Corona Suppression Methods
Use of Inverter vs. Motor Generator?
GFI Nuisance Tripping?
DC Testing Long Cables – Limit Charging & Discharging Current
Motor & Generator HV Testing with 0.1 Hz. VLF
PDF
Motor & Generator HV Testing with 50/60 Hz.
PDF
Motor & Generator Withstand Test Voltages 50/60 Hz. & 0.1 Hz. VLF
PDF
Stator Winding Withstand Testing Example – AC vs. DC
PDF
Lineman Safety Article by HVI – from Electricity Today Magazine
PDF
General Safety Tips While Testing with HVI Products
PDF
High Voltage Output Cable Precautions
PDF
Output Cable from Hipot – What to Use?
PDF
Hand & Foot Safety Switches
PDF
Safety Ground Shorting Sticks
PDF
VLF AC Hipoting Application Questionnaire
PDF
Cable Fault Locating Questionnaire
PDF
Motor Testing Application Questionnaire
PDF
Ideal Cable Testing & Fault Locating Products Questionnaire
PDF
Substation Apparatus Application Questionnaire
Aerial Lift Testing: Booms & Buckets
A Walk Around HVI
PDF
HVI All Products Presentation
PDF
Various Methods of MV/HV Cable Testing in Use (54 Slides)
PDF
VLF 0.1 Hz. AC Technology, with VLF Withstand, TD, & PD Testing (84 Slides)
PDF
VLF & TD E-Series Technology, Hookup & Control
PDF
VLF & TD E-Link Software Tour
PDF
VLF 200 kVac Cable Testing Overview
PDF
Cable Fault Locating with Thumpers, TDR/Radar, & Listening Devices (full course 68 slides)
PDF
Cable Fault Diagnosis & Locating Introduction
PDF
Cable Fault Pinpointing with the SDAD from Aquatronics, Inc.
PDF
TDR/Radar use for Cable Fault Locating: Brief Review
PDF
Motor & Generator Testing with AC: EIC 2013 Conference
PDF
Oil Dielectric Testing
PDF
Aerial Lift Testing per IEEE 92.2 Standard
PDF
HVI PAR Power Test
PDF
Testing VLF 0.1 Hz AC Technology
VLF Tan Delta Testing
VLF Partial Discharge Testing
VLF E Series Technology
Ω-Check Concentric Neutral Resistance Tester
PFT Series AC Hipots
Link to Video
Learn more
PTS-Series DC Hipot/Megohmmeters
Link to Video on YouTube
Learn more
DTS Series Oil Dielectric Testers
Link to Video on YouTube
Learn more
Motor & Generator High Voltage AC Testing Paper – EIC 2013
PDF
Motor & Generator Testing Slideshow – EIC 2013
PDF
World Shifts to VLF Testing – Were You In On It? IEEE 2010 Paper
PDF
Linemen’s Safety Article: HVI AC Testing
PDF
VLF-200 Mobile Truck Lab for VLF/TD/PD Testing from Inducor Engineering
PDF
The Ohm-Check Concentric Neutral Tester Users Guide
PDF
NEETRAC
University of Georgia Tech Research Papers: VLF, VLF TD, & VLF PD
Learn more
VLF Cable Testing Overview FAQ
VLF Withstand & Diagnostic Testing
Tan Delta Testing FAQ
VLF Tests: Proof & TD/PD
Cable Fault Locating
AC Hipots & Dielectric Testers
DC Testing
Certificate of Registration – ISO 9001
PDF
Transformer Insulation Oil Used
PDF
MSDS Forms
Other Manufacturing Standards Observed
ISO ??
NEETRAC ?