High Voltage Very Low Frequency (VLF) Technology, Tan Delta, AC / DC Insulation Test Sets, Oil Dielectric Testers, Cable Fault Locators, Surge Generators
High Voltage Inc (HVI) is the power industry’s leading supplier of high voltage test equipment for testing substation apparatus, aerial lifts and cables.
Our products are smaller, lighter, offer more features, provide higher power with longer duty ratings and are among the most rugged designs available for field testing all types of utility loads. Decades of design and manufacturing experience have produced the next generation of HV test equipment.
We manufacture VLF (Very Low Frequency) and Tan Delta testing products, AC hipots and DC hipots insulation test sets, capacitor discharge units, aerial lift testers, iso phase bus testers and oil dielectric testers.
VLF AND TAN DELTA TECHNOLOGY
HVI is the leader in VLF technology for AC testing of medium and high voltage cables. Our CE marked VLF products range from 25kv to 120kv, with higher voltage models under development. Utilities and others can now easily supply VLF AC test cables in the field that are several kilometers in length and rated up to 138kv. HVI also offers Tan Delta for cable diagnostic testing. HVI’s VLF cables produce a sine wave output, that enables them to be used for partial discharge and Tan Delta testing.
AC HIPOTS AND DC HIPOTS FROM 10kV TO 200kV
HVI has developed the next generation of insulation test sets that offer more power and features yet are smaller and lighter than others. Our CE marked DC dielectric test equipment offers 10mA of current, includes input line regulation, anti-static meters, ruggedized and transit-protected meters, and built-in megohmmeters. Our AC hipots offer the highest voltage and power levels that have ever been available in a single-piece cable output model. Several models are half the size offered by our competition.
CAPACITOR DISCHARGE UNITS – SURGE GENERATOR THUMPERS
HVI offers some of the most equipped and powerful thumpers with the highest burn currents available. Three full joule output voltage taps permit effective surge generation (thumping) but at lower, less damaging voltages. We supply:
- CDS-2010U: 0kV to 5/10/20kV at 1,000J with 400mA burn current
- CDS-3616U: 0kV to 9/18/36kV at 1,600J with 280mA burn
- CDS-3632U: 0kV to 9/18/36kV at 3,200J with 280mA burn
- CTS-100: 0kV to 100kV at 600mA, 25kV at 7,500J, 12A burn
HVI offers the only VLF thumper combination, ideal for VLF testing and fault location on cables rated up to 15kV. Our VLF thumper combination features an internal arc reflection filter compatible with most TDRs.
AERIAL LIFT TESTER AND ISO PHASE BUS TESTER
Our ALT-120/60 is the highest powered and longest duty rated AC voltage bucket truck tester available. It is used to test all types of aerial lifts and its powerful 60kv and 120kv outputs make it ideal for testing substation apparatus requiring AC voltage and high kvA.
For DC voltage testing aerial lifts, our PTS-100, rated 0 to 100 kVdc at 10 mA is the model of choice. Liner testers rated up to 50kv at 20kvA are also available, as are other custom AC and DC instruments.
OIL DIELECTRIC TESTERS
We produce two insulating oil dielectric testers: 60kv and 100kv versions. These oil test sets are compact and rugged designs intended for field use. HVI will soon offer a fully automated, microprocessor-controlled model.
Products and Services
An Easy, Portable Testing Solution for your Rotating Apparatus
This white paper includes information about High Voltage Inc's (HVI) advanced test equipment for high-voltage (HV) proof and preventive maintenance testing of electrical apparatus.
High-Voltage Tan and Cable Testing with Tan Delta Technology
The TD-34E Tan Delta analyses voltages and current waveforms, and calculates tan delta numbers.
Wireless High Connection HV Testing Equipment
HVI's VLF and Tan Delta with XBee Wireless keep all components connected and ensure high connection sustainability with no short distance limitations when testing.
Wirelessly Controlled Tan Delta Transducers
Newly designed solid state, wirelessly controlled VLF with matching Tan Delta transducers & custom PC application software.
High Voltage Inc has introduced the new Q-Check concentric neutral resistance tester used for maintaining system stability, reliability and safety.Read more
HVI is proud to announce its newest model in its PFT Series of field portable AC Dielectric Testers, the PFT-652CM.Read more
High Voltage announces its new product line: engineered, integrated, and assembled cable testing and / or fault locating packages for utility vans and trucks. HVI offers a quick and easy way for utilities, electrical contractors, or industrials to equip a test truck with all the tools needed. WeRead more
High Voltage, Inc. announces a full line of AC test sets for testing all types of electrical apparatus. Complementing our standard product line of 3kVA AC hipots, the HPA series of models range for 5kV - 300kV, from 5kVA to 20kVA. Three control options are available, from simple manualRead more
New Combination Model VT-33 VLF .1Hz. AC Hipot, Cable Fault Locator and Burner Receives Positive Industry Welcome
High Voltage's new VT- 33 offers complete cable care for underground shielded power cables up to the 25 kV class. It is the industry's first VLF AC cable testing and fault finding/burner instrument in one self contained package. The VT-33 provides a 0 to 33kV peak AC.1Hz Very Low FrequRead more
High Voltage, Inc. introduces it 200kVac Very Low Frequency technology. The VLF-200CMF is suitable for performing VLF withstand tests on 138kV cable and can be used as a voltage source for off-line partial discharge and Tan Delta testing on higher voltage cables. Field VLF, pdRead more
High Voltage Inc. Introduces Combination VLF AC Hipot/Cable Fault Locator The recent IEEE Standard 400.2 Guide for Field Testing of Shielded Power Cable systems will require industrials, contractors and power companies to use VLF AC hipots instead of the old DC method of proof testingRead more
The High Voltage, Inc. line of Very Low Frequency (VLF) AC testers just got better. A new datalogger feature will soon be avialable. HVI provides the best of both worlds with its easy to operate, manually controlled VLF intstruments with a sophisticated data collection system. All test results arRead more
High Voltage, Inc. of New York, USA is returning to the Mid East Expo, scheduled for February 5th through the 8th. HVI is the leader in Very Low Frequency (VLF) technology for cable and generator testing and also provides the world with many of the top cable fault locators, or surge generators.Read more